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7a8789347e8b89f9e9306294ab7e0d3ed3e592a5
Phoenix/wx/lib/agw/hypertreelist.py
cbeytas 7a8789347e Properly update tree when windows added or removed 
In CustromTreeCtrl and HyperTreeList when a window is added or deleted
from an item the row height can change causing the entire tree to
change shape. This sets the _dirty flag so the tree gets recalcualted
during the next Idle handler.
In HyperTreeList deleting an item didn't properly remove it from the
_itemWithWindow list.
2018-11-21 14:45:03 -05:00

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# --------------------------------------------------------------------------------- #
# HYPERTREELIST wxPython IMPLEMENTATION
# Inspired By And Heavily Based On wx.gizmos.TreeListCtrl in Classic.
#
# Andrea Gavana, @ 08 May 2006
# Latest Revision: 30 Jul 2014, 21.00 GMT
#
#
# TODO List
#
# Almost All The Features Of wx.gizmos.TreeListCtrl Are Available, And There Is
# Practically No Limit In What Could Be Added To This Class. The First Things
# That Comes To My Mind Are:
#
# 1. Add Support For 3-State CheckBoxes (Is That Really Useful?).
#
# 2. Try To Implement A More Flicker-Free Background Image In Cases Like
# Centered Or Stretched Image (Now HyperTreeList Supports Only Tiled
# Background Images).
#
# 3. Try To Mimic Windows wx.TreeCtrl Expanding/Collapsing behaviour: HyperTreeList
# Suddenly Expands/Collapses The Nodes On Mouse Click While The Native Control
# Has Some Kind Of "Smooth" Expanding/Collapsing, Like A Wave. I Don't Even
# Know Where To Start To Do That.
#
# 4. Speed Up General OnPaint Things? I Have No Idea, Here HyperTreeList Is Quite
# Fast, But We Should See On Slower Machines.
#
#
# For All Kind Of Problems, Requests Of Enhancements And Bug Reports, Please
# Write To Me At:
#
# andrea.gavana@gmail.com
# andrea.gavana@maerskoil.com
#
# Or, Obviously, To The wxPython Mailing List!!!
#
# Tags: phoenix-port, unittest, documented, py3-port
#
# End Of Comments
# --------------------------------------------------------------------------------- #
"""
:class:`~wx.lib.agw.hypertreelist.HyperTreeList` is a class that combines the
multicolumn features of a :class:`wx.ListCtrl` in report mode with the
hierarchical features of a :class:`wx.TreeCtrl`. Although it looks more like a
:class:`wx.ListCtrl`, the API tends to follow the API of :class:`wx.TreeCtrl`.
Description
===========
:class:`HyperTreeList` was originally inspired from the
``wx.gizmos.TreeListCtrl`` class from Classic wxPython. Now in Phoenix the old
wrapped C++ ``wxTreeListCtrl`` class is gone and this class can be used in its
place. In addition to the features of the old ``wx.gizmos.TreeListCtrl`` this
class supports:
* CheckBox-type items: checkboxes are easy to handle, just selected or unselected
state with no particular issues in handling the item's children;
* Added support for 3-state value checkbox items;
* RadioButton-type items: since I elected to put radiobuttons in
:class:`~wx.lib.agw.customtreectrl.CustomTreeCtrl`, I needed some way to handle
them that made sense. So, I used the following approach:
- All peer-nodes that are radiobuttons will be mutually exclusive. In other words,
only one of a set of radiobuttons that share a common parent can be checked at
once. If a radiobutton node becomes checked, then all of its peer radiobuttons
must be unchecked.
- If a radiobutton node becomes unchecked, then all of its child nodes will become
inactive.
* Hyperlink-type items: they look like an hyperlink, with the proper mouse cursor on
hovering;
* Multiline text items;
* Enabling/disabling items (together with their plain or grayed out icons);
* Whatever non-toplevel widget can be attached next to a tree item;
* Whatever non-toplevel widget can be attached next to a list item;
* Column headers are fully customizable in terms of icons, colour, font, alignment etc...;
* Default selection style, gradient (horizontal/vertical) selection style and Windows
Vista selection style;
* Customized drag and drop images built on the fly;
* Setting the :class:`HyperTreeList` item buttons to a personalized imagelist;
* Setting the :class:`HyperTreeList` check/radio item icons to a personalized imagelist;
* Changing the style of the lines that connect the items (in terms of :class:`wx.Pen` styles);
* Using an image as a :class:`HyperTreeList` background (currently only in "tile" mode);
* Ellipsization of long items when the horizontal space is low, via the ``TR_ELLIPSIZE_LONG_ITEMS``
style (`New in version 0.9.3`).
And a lot more. Check the demo for an almost complete review of the functionalities.
Base Functionalities
====================
:class:`HyperTreeList` supports all the :class:`wx.TreeCtrl` styles, except:
- ``TR_EXTENDED``: supports for this style is on the todo list (Am I sure of this?).
Plus it has 3 more styles to handle checkbox-type items:
- ``TR_AUTO_CHECK_CHILD``: automatically checks/unchecks the item children;
- ``TR_AUTO_CHECK_PARENT``: automatically checks/unchecks the item parent;
- ``TR_AUTO_TOGGLE_CHILD``: automatically toggles the item children.
And a style useful to hide the TreeListCtrl header:
- ``TR_NO_HEADER``: hides the :class:`HyperTreeList` header.
And a style related to long items (with a lot of text in them), which can be
ellipsized:
- ``TR_ELLIPSIZE_LONG_ITEMS``: ellipsizes long items when the horizontal space for
:class:`HyperTreeList` is low (`New in version 0.9.3`).
Please note that most TreeCtrl-like APIs are available in this class, although
they may not be visible to IDEs or other tools as they are automatically
delegated to the :class:`CustomTreeCtrl` or other helper classes.
Usage
=====
Usage example::
import wx
import wx.lib.agw.hypertreelist as HTL
class MyFrame(wx.Frame):
def __init__(self, parent):
wx.Frame.__init__(self, parent, -1, "HyperTreeList Demo")
tree_list = HTL.HyperTreeList(self)
tree_list.AddColumn("First column")
root = tree_list.AddRoot("Root")
parent = tree_list.AppendItem(root, "First child")
child = tree_list.AppendItem(parent, "First Grandchild")
tree_list.AppendItem(root, "Second child")
# our normal wxApp-derived class, as usual
app = wx.App(0)
frame = MyFrame(None)
app.SetTopWindow(frame)
frame.Show()
app.MainLoop()
Events
======
All the events supported by :class:`wx.TreeCtrl` and some from :class:`wx.ListCtrl` are
also available in :class:`HyperTreeList`, with a few exceptions:
- ``EVT_TREE_GET_INFO`` (don't know what this means);
- ``EVT_TREE_SET_INFO`` (don't know what this means);
- ``EVT_TREE_ITEM_MIDDLE_CLICK`` (not implemented, but easy to add);
- ``EVT_TREE_STATE_IMAGE_CLICK`` (no need for that, look at the checking events below).
Plus, :class:`HyperTreeList` supports the events related to the checkbutton-type items:
- ``EVT_TREE_ITEM_CHECKING``: an item is being checked;
- ``EVT_TREE_ITEM_CHECKED``: an item has been checked.
And to hyperlink-type items:
- ``EVT_TREE_ITEM_HYPERLINK``: an hyperlink item has been clicked (this event is sent
after the ``EVT_TREE_SEL_CHANGED`` event).
Supported Platforms
===================
:class:`HyperTreeList` has been tested on the following platforms:
* Windows
* Linux
* Mac
Window Styles
=============
This class supports the following window styles:
============================== =========== ==================================================
Window Styles Hex Value Description
============================== =========== ==================================================
``TR_NO_BUTTONS`` 0x0 For convenience to document that no buttons are to be drawn.
``TR_SINGLE`` 0x0 For convenience to document that only one item may be selected at a time. Selecting another item causes the current selection, if any, to be deselected. This is the default.
``TR_HAS_BUTTONS`` 0x1 Use this style to show + and - buttons to the left of parent items.
``TR_NO_LINES`` 0x4 Use this style to hide vertical level connectors.
``TR_LINES_AT_ROOT`` 0x8 Use this style to show lines between root nodes. Only applicable if ``TR_HIDE_ROOT`` is set and ``TR_NO_LINES`` is not set.
``TR_DEFAULT_STYLE`` 0x9 The set of flags that are closest to the defaults for the native control for a particular toolkit.
``TR_TWIST_BUTTONS`` 0x10 Use old Mac-twist style buttons.
``TR_MULTIPLE`` 0x20 Use this style to allow a range of items to be selected. If a second range is selected, the current range, if any, is deselected.
``TR_EXTENDED`` 0x40 Use this style to allow disjoint items to be selected. (Only partially implemented; may not work in all cases).
``TR_HAS_VARIABLE_ROW_HEIGHT`` 0x80 Use this style to cause row heights to be just big enough to fit the content. If not set, all rows use the largest row height. The default is that this flag is unset.
``TR_EDIT_LABELS`` 0x200 Use this style if you wish the user to be able to edit labels in the tree control.
``TR_ROW_LINES`` 0x400 Use this style to draw a contrasting border between displayed rows.
``TR_HIDE_ROOT`` 0x800 Use this style to suppress the display of the root node, effectively causing the first-level nodes to appear as a series of root nodes.
``TR_COLUMN_LINES`` 0x1000 Use this style to draw a contrasting border between displayed columns.
``TR_FULL_ROW_HIGHLIGHT`` 0x2000 Use this style to have the background colour and the selection highlight extend over the entire horizontal row of the tree control window.
``TR_AUTO_CHECK_CHILD`` 0x4000 Only meaningful for checkbox-type items: when a parent item is checked/unchecked its children are checked/unchecked as well.
``TR_AUTO_TOGGLE_CHILD`` 0x8000 Only meaningful for checkbox-type items: when a parent item is checked/unchecked its children are toggled accordingly.
``TR_AUTO_CHECK_PARENT`` 0x10000 Only meaningful for checkbox-type items: when a child item is checked/unchecked its parent item is checked/unchecked as well.
``TR_ALIGN_WINDOWS`` 0x20000 Flag used to align windows (in items with windows) at the same horizontal position.
``TR_NO_HEADER`` 0x40000 Use this style to hide the columns header.
``TR_ELLIPSIZE_LONG_ITEMS`` 0x80000 Flag used to ellipsize long items when the horizontal space for :class:`HyperTreeList` columns is low.
``TR_VIRTUAL`` 0x100000 :class:`HyperTreeList` will have virtual behaviour.
============================== =========== ==================================================
Events Processing
=================
This class processes the following events, Note that these are the same events as ``wx.ListCtrl`` and ``wx.TreeCtrl``:
============================== ==================================================
Event Name Description
============================== ==================================================
``EVT_LIST_COL_BEGIN_DRAG`` The user started resizing a column - can be vetoed.
``EVT_LIST_COL_CLICK`` A column has been left-clicked.
``EVT_LIST_COL_DRAGGING`` The divider between columns is being dragged.
``EVT_LIST_COL_END_DRAG`` A column has been resized by the user.
``EVT_LIST_COL_RIGHT_CLICK`` A column has been right-clicked.
``EVT_TREE_BEGIN_DRAG`` Begin dragging with the left mouse button.
``EVT_TREE_BEGIN_LABEL_EDIT`` Begin editing a label. This can be prevented by calling :meth:`TreeEvent.Veto() <lib.agw.customtreectrl.TreeEvent.Veto>`.
``EVT_TREE_BEGIN_RDRAG`` Begin dragging with the right mouse button.
``EVT_TREE_DELETE_ITEM`` Delete an item.
``EVT_TREE_END_DRAG`` End dragging with the left or right mouse button.
``EVT_TREE_END_LABEL_EDIT`` End editing a label. This can be prevented by calling :meth:`TreeEvent.Veto() <lib.agw.customtreectrl.TreeEvent.Veto>`.
``EVT_TREE_GET_INFO`` Request information from the application (not implemented in :class:`HyperTreeList`).
``EVT_TREE_ITEM_ACTIVATED`` The item has been activated, i.e. chosen by double clicking it with mouse or from keyboard.
``EVT_TREE_ITEM_CHECKED`` A checkbox or radiobox type item has been checked.
``EVT_TREE_ITEM_CHECKING`` A checkbox or radiobox type item is being checked.
``EVT_TREE_ITEM_COLLAPSED`` The item has been collapsed.
``EVT_TREE_ITEM_COLLAPSING`` The item is being collapsed. This can be prevented by calling :meth:`TreeEvent.Veto() <lib.agw.customtreectrl.TreeEvent.Veto>`.
``EVT_TREE_ITEM_EXPANDED`` The item has been expanded.s
``EVT_TREE_ITEM_EXPANDING`` The item is being expanded. This can be prevented by calling :meth:`TreeEvent.Veto() <lib.agw.customtreectrl.TreeEvent.Veto>`.
``EVT_TREE_ITEM_GETTOOLTIP`` The opportunity to set the item tooltip is being given to the application (call :meth:`TreeEvent.SetToolTip() <lib.agw.customtreectrl.CommandTreeEvent.SetToolTip>`).
``EVT_TREE_ITEM_HYPERLINK`` An hyperlink type item has been clicked.
``EVT_TREE_ITEM_MENU`` The context menu for the selected item has been requested, either by a right click or by using the menu key.
``EVT_TREE_ITEM_MIDDLE_CLICK`` The user has clicked the item with the middle mouse button (not implemented in :class:`HyperTreeList`).
``EVT_TREE_ITEM_RIGHT_CLICK`` The user has clicked the item with the right mouse button.
``EVT_TREE_KEY_DOWN`` A key has been pressed.
``EVT_TREE_SEL_CHANGED`` Selection has changed.
``EVT_TREE_SEL_CHANGING`` Selection is changing. This can be prevented by calling :meth:`TreeEvent.Veto() <lib.agw.customtreectrl.TreeEvent.Veto>`.
``EVT_TREE_SET_INFO`` Information is being supplied to the application (not implemented in :class:`HyperTreeList`).
``EVT_TREE_STATE_IMAGE_CLICK`` The state image has been clicked (not implemented in :class:`HyperTreeList`).
============================== ==================================================
License And Version
===================
:class:`HyperTreeList` is distributed under the wxPython license.
Latest Revision: Andrea Gavana @ 30 Jul 2014, 21.00 GMT
Version 1.4
"""
import wx
from wx.lib.agw.customtreectrl import CustomTreeCtrl
from wx.lib.agw.customtreectrl import DragImage, TreeEvent, GenericTreeItem, ChopText
from wx.lib.agw.customtreectrl import TreeEditTimer as TreeListEditTimer
from wx.lib.agw.customtreectrl import EVT_TREE_ITEM_CHECKING, EVT_TREE_ITEM_CHECKED, EVT_TREE_ITEM_HYPERLINK
# Python 2/3 compatibility helper
import six
# Version Info
__version__ = "1.4"
# --------------------------------------------------------------------------
# Constants
# --------------------------------------------------------------------------
_NO_IMAGE = -1
_DEFAULT_COL_WIDTH = 100
_LINEHEIGHT = 10
_LINEATROOT = 5
_MARGIN = 2
_MININDENT = 16
_BTNWIDTH = 9
_BTNHEIGHT = 9
_EXTRA_WIDTH = 4
_EXTRA_HEIGHT = 4
_MAX_WIDTH = 30000 # pixels; used by OnPaint to redraw only exposed items
_DRAG_TIMER_TICKS = 250 # minimum drag wait time in ms
_FIND_TIMER_TICKS = 500 # minimum find wait time in ms
_EDIT_TIMER_TICKS = 250 # minimum edit wait time in ms
# --------------------------------------------------------------------------
# Additional HitTest style
# --------------------------------------------------------------------------
TREE_HITTEST_ONITEMCOLUMN = 0x2000
""" On the item column. """
TREE_HITTEST_ONITEMCHECKICON = 0x4000
""" On the check icon, if present. """
# HyperTreeList styles
TR_DEFAULT_STYLE = wx.TR_DEFAULT_STYLE
""" Default style for HyperTreeList. """
TR_NO_BUTTONS = wx.TR_NO_BUTTONS # for convenience
""" For convenience to document that no buttons are to be drawn. """
TR_HAS_BUTTONS = wx.TR_HAS_BUTTONS # draw collapsed/expanded btns
""" Use this style to show + and - buttons to the left of parent items. """
TR_NO_LINES = wx.TR_NO_LINES # don't draw lines at all
""" Use this style to hide vertical level connectors. """
TR_LINES_AT_ROOT = wx.TR_LINES_AT_ROOT # connect top-level nodes
""" Use this style to show lines between root nodes. Only applicable if ``TR_HIDE_ROOT`` is set and ``TR_NO_LINES`` is not set. """
TR_TWIST_BUTTONS = wx.TR_TWIST_BUTTONS # still used by wxTreeListCtrl
""" Use old Mac-twist style buttons. """
TR_SINGLE = wx.TR_SINGLE # for convenience
""" For convenience to document that only one item may be selected at a time. Selecting another item causes the current selection, if any, to be deselected. This is the default. """
TR_MULTIPLE = wx.TR_MULTIPLE # can select multiple items
""" Use this style to allow a range of items to be selected. If a second range is selected, the current range, if any, is deselected. """
TR_EXTENDED = 0x40 # TODO: allow extended selection
""" Use this style to allow disjoint items to be selected. (Only partially implemented; may not work in all cases). """
TR_HAS_VARIABLE_ROW_HEIGHT = wx.TR_HAS_VARIABLE_ROW_HEIGHT # what it says
""" Use this style to cause row heights to be just big enough to fit the content. If not set, all rows use the largest row height. The default is that this flag is unset. """
TR_EDIT_LABELS = wx.TR_EDIT_LABELS # can edit item labels
""" Use this style if you wish the user to be able to edit labels in the tree control. """
TR_COLUMN_LINES = 0x1000 # put column border around items
""" Use this style to draw a contrasting border between displayed columns. """
TR_ROW_LINES = wx.TR_ROW_LINES # put border around items
""" Use this style to draw a contrasting border between displayed rows. """
TR_HIDE_ROOT = wx.TR_HIDE_ROOT # don't display root node
""" Use this style to suppress the display of the root node, effectively causing the first-level nodes to appear as a series of root nodes. """
TR_FULL_ROW_HIGHLIGHT = wx.TR_FULL_ROW_HIGHLIGHT # highlight full horz space
""" Use this style to have the background colour and the selection highlight extend over the entire horizontal row of the tree control window. """
TR_AUTO_CHECK_CHILD = 0x04000 # only meaningful for checkboxes
""" Only meaningful for checkbox-type items: when a parent item is checked/unchecked its children are checked/unchecked as well. """
TR_AUTO_TOGGLE_CHILD = 0x08000 # only meaningful for checkboxes
""" Only meaningful for checkbox-type items: when a parent item is checked/unchecked its children are toggled accordingly. """
TR_AUTO_CHECK_PARENT = 0x10000 # only meaningful for checkboxes
""" Only meaningful for checkbox-type items: when a child item is checked/unchecked its parent item is checked/unchecked as well. """
TR_ALIGN_WINDOWS = 0x20000 # to align windows horizontally for items at the same level
""" Flag used to align windows (in items with windows) at the same horizontal position. """
TR_ELLIPSIZE_LONG_ITEMS = 0x80000 # to ellipsize long items when horizontal space is low
""" Flag used to ellipsize long items when the horizontal space for :class:`HyperTreeList` columns is low."""
TR_VIRTUAL = 0x100000
""" :class:`HyperTreeList` will have virtual behaviour. """
# --------------------------------------------------------------------------
# Additional HyperTreeList style to hide the header
# --------------------------------------------------------------------------
TR_NO_HEADER = 0x40000
""" Use this style to hide the columns header. """
# --------------------------------------------------------------------------
# --------------------------------------------------------------------------
# Additional HyperTreeList style autosize the columns based on the widest
# width between column header and cells content
# --------------------------------------------------------------------------
LIST_AUTOSIZE_CONTENT_OR_HEADER = -3
# --------------------------------------------------------------------------
def IsBufferingSupported():
"""
Utility function which checks if a platform handles correctly double
buffering for the header. Currently returns ``False`` for all platforms
except Windows XP.
"""
if wx.Platform != "__WXMSW__":
return False
if wx.App.GetComCtl32Version() >= 600:
if wx.GetOsVersion()[1] > 5:
# Windows Vista
return False
return True
return False
class TreeListColumnInfo(object):
"""
Class used to store information (width, alignment flags, colours, etc...) about a
:class:`HyperTreeList` column header.
"""
def __init__(self, input="", width=_DEFAULT_COL_WIDTH, flag=wx.ALIGN_LEFT,
image=-1, shown=True, colour=None, edit=False):
"""
Default class constructor.
:param `input`: can be a string (representing the column header text) or
another instance of :class:`TreeListColumnInfo`. In the latter case, all the
other input parameters are not used;
:param `width`: the column width in pixels;
:param `flag`: the column alignment flag, one of ``wx.ALIGN_LEFT``,
``wx.ALIGN_RIGHT``, ``wx.ALIGN_CENTER``;
:param `image`: an index within the normal image list assigned to
:class:`HyperTreeList` specifying the image to use for the column;
:param `shown`: ``True`` to show the column, ``False`` to hide it;
:param `colour`: a valid :class:`wx.Colour`, representing the text foreground colour
for the column;
:param `edit`: ``True`` to set the column as editable, ``False`` otherwise.
"""
if isinstance(input, six.string_types):
self._text = input
self._width = width
self._flag = flag
self._image = image
self._selected_image = -1
self._shown = shown
self._edit = edit
self._font = wx.SystemSettings.GetFont(wx.SYS_DEFAULT_GUI_FONT)
if colour is None:
self._colour = wx.SystemSettings.GetColour(wx.SYS_COLOUR_WINDOWTEXT)
else:
self._colour = colour
else:
self._text = input._text
self._width = input._width
self._flag = input._flag
self._image = input._image
self._selected_image = input._selected_image
self._shown = input._shown
self._edit = input._edit
self._colour = input._colour
self._font = input._font
# get/set
def GetText(self):
""" Returns the column header label. """
return self._text
def SetText(self, text):
"""
Sets the column header label.
:param `text`: the new column header text.
"""
self._text = text
return self
def GetWidth(self):
""" Returns the column header width in pixels. """
return self._width
def SetWidth(self, width):
"""
Sets the column header width.
:param `width`: the column header width, in pixels.
"""
self._width = width
return self
def GetAlignment(self):
""" Returns the column text alignment. """
return self._flag
def SetAlignment(self, flag):
"""
Sets the column text alignment.
:param `flag`: the alignment flag, one of ``wx.ALIGN_LEFT``, ``wx.ALIGN_RIGHT``,
``wx.ALIGN_CENTER``.
"""
self._flag = flag
return self
def GetColour(self):
""" Returns the column text colour. """
return self._colour
def SetColour(self, colour):
"""
Sets the column text colour.
:param `colour`: a valid :class:`wx.Colour` object.
"""
self._colour = colour
return self
def GetImage(self):
""" Returns the column image index. """
return self._image
def SetImage(self, image):
"""
Sets the column image index.
:param `image`: an index within the normal image list assigned to
:class:`HyperTreeList` specifying the image to use for the column.
"""
self._image = image
return self
def GetSelectedImage(self):
""" Returns the column image index in the selected state. """
return self._selected_image
def SetSelectedImage(self, image):
"""
Sets the column image index in the selected state.
:param `image`: an index within the normal image list assigned to
:class:`HyperTreeList` specifying the image to use for the column when in
selected state.
"""
self._selected_image = image
return self
def IsEditable(self):
""" Returns ``True`` if the column is editable, ``False`` otherwise. """
return self._edit
def SetEditable(self, edit):
"""
Sets the column as editable or non-editable.
:param `edit`: ``True`` if the column should be editable, ``False`` otherwise.
"""
self._edit = edit
return self
def IsShown(self):
""" Returns ``True`` if the column is shown, ``False`` if it is hidden. """
return self._shown
def SetShown(self, shown):
"""
Sets the column as shown or hidden.
:param `shown`: ``True`` if the column should be shown, ``False`` if it
should be hidden.
"""
self._shown = shown
return self
def SetFont(self, font):
"""
Sets the column text font.
:param `font`: a valid :class:`wx.Font` object.
"""
self._font = font
return self
def GetFont(self):
""" Returns the column text font. """
return self._font
#-----------------------------------------------------------------------------
# TreeListHeaderWindow (internal)
#-----------------------------------------------------------------------------
class TreeListHeaderWindow(wx.Window):
""" A window which holds the header of :class:`HyperTreeList`. """
def __init__(self, parent, id=wx.ID_ANY, owner=None, pos=wx.DefaultPosition,
size=wx.DefaultSize, style=0, name="wxtreelistctrlcolumntitles"):
"""
Default class constructor.
:param `parent`: the window parent. Must not be ``None``;
:param `id`: window identifier. A value of -1 indicates a default value;
:param `owner`: the window owner, in this case an instance of :class:`TreeListMainWindow`;
:param `pos`: the control position. A value of (-1, -1) indicates a default position,
chosen by either the windowing system or wxPython, depending on platform;
:param `size`: the control size. A value of (-1, -1) indicates a default size,
chosen by either the windowing system or wxPython, depending on platform;
:param `style`: the window style;
:param `name`: the window name.
"""
wx.Window.__init__(self, parent, id, pos, size, style, name=name)
self._owner = owner
self._currentCursor = wx.Cursor(wx.CURSOR_DEFAULT)
self._resizeCursor = wx.Cursor(wx.CURSOR_SIZEWE)
self._isDragging = False
self._dirty = False
self._total_col_width = 0
self._hotTrackCol = -1
self._columns = []
self._headerCustomRenderer = None
self.Bind(wx.EVT_PAINT, self.OnPaint)
self.Bind(wx.EVT_MOUSE_EVENTS, self.OnMouse)
self.Bind(wx.EVT_SET_FOCUS, self.OnSetFocus)
self.SetBackgroundStyle(wx.BG_STYLE_PAINT)
def SetBuffered(self, buffered):
"""
Sets/unsets the double buffering for the header.
:param `buffered`: ``True`` to use double-buffering, ``False`` otherwise.
:note: Currently we are using double-buffering only on Windows XP.
"""
self._buffered = buffered
# total width of all columns
def GetWidth(self):
""" Returns the total width of all columns. """
return self._total_col_width
# column manipulation
def GetColumnCount(self):
""" Returns the total number of columns. """
return len(self._columns)
# column information manipulation
def GetColumn(self, column):
"""
Returns a column item, an instance of :class:`TreeListItem`.
:param `column`: an integer specifying the column index.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
return self._columns[column]
def GetColumnText(self, column):
"""
Returns the column text label.
:param `column`: an integer specifying the column index.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
return self._columns[column].GetText()
def SetColumnText(self, column, text):
"""
Sets the column text label.
:param `column`: an integer specifying the column index;
:param `text`: the new column label.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
return self._columns[column].SetText(text)
def GetColumnAlignment(self, column):
"""
Returns the column text alignment.
:param `column`: an integer specifying the column index.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
return self._columns[column].GetAlignment()
def SetColumnAlignment(self, column, flag):
"""
Sets the column text alignment.
:param `column`: an integer specifying the column index;
:param `flag`: the new text alignment flag.
:see: :meth:`TreeListColumnInfo.SetAlignment() <TreeListColumnInfo.SetAlignment>` for a list of valid alignment
flags.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
return self._columns[column].SetAlignment(flag)
def GetColumnWidth(self, column):
"""
Returns the column width, in pixels.
:param `column`: an integer specifying the column index.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
return self._columns[column].GetWidth()
def GetColumnColour(self, column):
"""
Returns the column text colour.
:param `column`: an integer specifying the column index.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
return self._columns[column].GetColour()
def SetColumnColour(self, column, colour):
"""
Sets the column text colour.
:param `column`: an integer specifying the column index;
:param `colour`: a valid :class:`wx.Colour` object.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
return self._columns[column].SetColour(colour)
def IsColumnEditable(self, column):
"""
Returns ``True`` if the column is editable, ``False`` otherwise.
:param `column`: an integer specifying the column index.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
return self._columns[column].IsEditable()
def IsColumnShown(self, column):
"""
Returns ``True`` if the column is shown, ``False`` if it is hidden.
:param `column`: an integer specifying the column index.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
return self._columns[column].IsShown()
# shift the DC origin to match the position of the main window horz
# scrollbar: this allows us to always use logical coords
def AdjustDC(self, dc):
"""
Shifts the :class:`wx.DC` origin to match the position of the main window horizontal
scrollbar: this allows us to always use logical coordinates.
:param `dc`: an instance of :class:`wx.DC`.
"""
xpix, dummy = self._owner.GetScrollPixelsPerUnit()
x, dummy = self._owner.GetViewStart()
# account for the horz scrollbar offset
dc.SetDeviceOrigin(-x * xpix, 0)
def OnPaint(self, event):
"""
Handles the ``wx.EVT_PAINT`` event for :class:`TreeListHeaderWindow`.
:param `event`: a :class:`PaintEvent` event to be processed.
"""
if self._buffered:
dc = wx.BufferedPaintDC(self)
else:
dc = wx.PaintDC(self)
self.AdjustDC(dc)
x = 0
# width and height of the entire header window
w, h = self.GetClientSize()
w, dummy = self._owner.CalcUnscrolledPosition(w, 0)
dc.SetBackgroundMode(wx.TRANSPARENT)
numColumns = self.GetColumnCount()
for i in range(numColumns):
if x >= w:
break
if not self.IsColumnShown(i):
continue # do next column if not shown
params = wx.HeaderButtonParams()
column = self.GetColumn(i)
params.m_labelColour = column.GetColour()
params.m_labelFont = column.GetFont()
wCol = column.GetWidth()
flags = 0
rect = wx.Rect(x, 0, wCol, h)
x += wCol
if i == self._hotTrackCol:
flags |= wx.CONTROL_CURRENT
params.m_labelText = column.GetText()
params.m_labelAlignment = column.GetAlignment()
image = column.GetImage()
imageList = self._owner.GetImageList()
if image != -1 and imageList:
params.m_labelBitmap = imageList.GetBitmap(image)
if self._headerCustomRenderer != None:
self._headerCustomRenderer.DrawHeaderButton(dc, rect, flags, params)
else:
wx.RendererNative.Get().DrawHeaderButton(self, dc, rect, flags,
wx.HDR_SORT_ICON_NONE, params)
# Fill up any unused space to the right of the columns
if x < w:
rect = wx.Rect(x, 0, w-x, h)
if self._headerCustomRenderer != None:
self._headerCustomRenderer.DrawHeaderButton(dc, rect)
else:
wx.RendererNative.Get().DrawHeaderButton(self, dc, rect)
def DrawCurrent(self):
""" Draws the column resize line on a :class:`ScreenDC`. """
x1, y1 = self._currentX, 0
x1, y1 = self.ClientToScreen((x1, y1))
x2 = self._currentX-1
if wx.Platform == "__WXMSW__":
x2 += 1 # but why ????
y2 = 0
dummy, y2 = self._owner.GetClientSize()
x2, y2 = self._owner.ClientToScreen((x2, y2))
dc = wx.ScreenDC()
dc.SetLogicalFunction(wx.INVERT)
dc.SetPen(wx.Pen(wx.BLACK, 2, wx.PENSTYLE_SOLID))
dc.SetBrush(wx.TRANSPARENT_BRUSH)
self.AdjustDC(dc)
dc.DrawLine (x1, y1, x2, y2)
dc.SetLogicalFunction(wx.COPY)
def SetCustomRenderer(self, renderer=None):
"""
Associate a custom renderer with the header - all columns will use it
:param `renderer`: a class able to correctly render header buttons
:note: the renderer class **must** implement the method `DrawHeaderButton`
"""
self._headerCustomRenderer = renderer
def XToCol(self, x):
"""
Returns the column that corresponds to the logical input `x` coordinate.
:param `x`: the `x` position to evaluate.
:return: The column that corresponds to the logical input `x` coordinate,
or ``wx.NOT_FOUND`` if there is no column at the `x` position.
"""
colLeft = 0
numColumns = self.GetColumnCount()
for col in range(numColumns):
if not self.IsColumnShown(col):
continue
column = self.GetColumn(col)
if x < (colLeft + column.GetWidth()):
return col
colLeft += column.GetWidth()
return wx.NOT_FOUND
def RefreshColLabel(self, col):
"""
Redraws the column.
:param `col`: the index of the column to redraw.
"""
if col >= self.GetColumnCount():
return
x = idx = width = 0
while idx <= col:
if not self.IsColumnShown(idx):
idx += 1
continue
column = self.GetColumn(idx)
x += width
width = column.GetWidth()
idx += 1
x, dummy = self._owner.CalcScrolledPosition(x, 0)
self.RefreshRect(wx.Rect(x, 0, width, self.GetSize().GetHeight()))
def OnMouse(self, event):
"""
Handles the ``wx.EVT_MOUSE_EVENTS`` event for :class:`TreeListHeaderWindow`.
:param `event`: a :class:`MouseEvent` event to be processed.
"""
# we want to work with logical coords
x, dummy = self._owner.CalcUnscrolledPosition(event.GetX(), 0)
y = event.GetY()
if event.Moving():
col = self.XToCol(x)
if col != self._hotTrackCol:
# Refresh the col header so it will be painted with hot tracking
# (if supported by the native renderer.)
self.RefreshColLabel(col)
# Also refresh the old hot header
if self._hotTrackCol >= 0:
self.RefreshColLabel(self._hotTrackCol)
self._hotTrackCol = col
if event.Leaving() and self._hotTrackCol >= 0:
# Leaving the window so clear any hot tracking indicator that may be present
self.RefreshColLabel(self._hotTrackCol)
self._hotTrackCol = -1
if self._isDragging:
self.SendListEvent(wx.wxEVT_COMMAND_LIST_COL_DRAGGING, event.GetPosition())
# we don't draw the line beyond our window, but we allow dragging it
# there
w, dummy = self.GetClientSize()
w, dummy = self._owner.CalcUnscrolledPosition(w, 0)
w -= 6
# erase the line if it was drawn
if self._currentX < w:
self.DrawCurrent()
if event.ButtonUp():
self._isDragging = False
if self.HasCapture():
self.ReleaseMouse()
self._dirty = True
self.SetColumnWidth(self._column, self._currentX - self._minX)
self.Refresh()
self.SendListEvent(wx.wxEVT_COMMAND_LIST_COL_END_DRAG, event.GetPosition())
else:
self._currentX = max(self._minX + 7, x)
# draw in the new location
if self._currentX < w:
self.DrawCurrent()
else: # not dragging
self._minX = 0
hit_border = False
# end of the current column
xpos = 0
# find the column where this event occured
countCol = self.GetColumnCount()
for column in range(countCol):
if not self.IsColumnShown(column):
continue # do next if not shown
xpos += self.GetColumnWidth(column)
self._column = column
if abs (x-xpos) < 3 and y < 22:
# near the column border
hit_border = True
break
if x < xpos:
# inside the column
break
self._minX = xpos
if event.LeftDown() or event.RightUp():
if hit_border and event.LeftDown():
self._isDragging = True
if not self.HasCapture():
self.CaptureMouse()
self._currentX = x
self.DrawCurrent()
self.SendListEvent(wx.wxEVT_COMMAND_LIST_COL_BEGIN_DRAG, event.GetPosition())
else: # click on a column
evt = (event.LeftDown() and [wx.wxEVT_COMMAND_LIST_COL_CLICK] or [wx.wxEVT_COMMAND_LIST_COL_RIGHT_CLICK])[0]
self.SendListEvent(evt, event.GetPosition())
elif event.LeftDClick() and hit_border:
self.SetColumnWidth(self._column, self._owner.GetBestColumnWidth(self._column))
self.Refresh()
elif event.Moving():
if hit_border:
setCursor = self._currentCursor == wx.STANDARD_CURSOR
self._currentCursor = self._resizeCursor
else:
setCursor = self._currentCursor != wx.STANDARD_CURSOR
self._currentCursor = wx.STANDARD_CURSOR
if setCursor:
self.SetCursor(self._currentCursor)
def OnSetFocus(self, event):
"""
Handles the ``wx.EVT_SET_FOCUS`` event for :class:`TreeListHeaderWindow`.
:param `event`: a :class:`FocusEvent` event to be processed.
"""
self._owner.SetFocus()
def SendListEvent(self, evtType, pos):
"""
Sends a :class:`ListEvent` for the parent window.
:param `evtType`: the event type;
:param `pos`: an instance of :class:`wx.Point`.
"""
parent = self.GetParent()
le = wx.ListEvent(evtType, parent.GetId())
le.SetEventObject(parent)
le.m_pointDrag = pos
# the position should be relative to the parent window, not
# this one for compatibility with MSW and common sense: the
# user code doesn't know anything at all about this header
# window, so why should it get positions relative to it?
le.m_pointDrag.y -= self.GetSize().y
le.m_col = self._column
parent.GetEventHandler().ProcessEvent(le)
def AddColumnInfo(self, colInfo):
"""
Appends a column to the :class:`TreeListHeaderWindow`.
:param `colInfo`: an instance of :class:`TreeListColumnInfo`.
"""
self._columns.append(colInfo)
self._total_col_width += colInfo.GetWidth()
self._owner.AdjustMyScrollbars()
self._owner._dirty = True
def AddColumn(self, text, width=_DEFAULT_COL_WIDTH, flag=wx.ALIGN_LEFT,
image=-1, shown=True, colour=None, edit=False):
"""
Appends a column to the :class:`TreeListHeaderWindow`.
:param `text`: the column text label;
:param `width`: the column width in pixels;
:param `flag`: the column alignment flag, one of ``wx.ALIGN_LEFT``,
``wx.ALIGN_RIGHT``, ``wx.ALIGN_CENTER``;
:param `image`: an index within the normal image list assigned to
:class:`HyperTreeList` specifying the image to use for the column;
:param `shown`: ``True`` to show the column, ``False`` to hide it;
:param `colour`: a valid :class:`wx.Colour`, representing the text foreground colour
for the column;
:param `edit`: ``True`` to set the column as editable, ``False`` otherwise.
"""
colInfo = TreeListColumnInfo(text, width, flag, image, shown, colour, edit)
self.AddColumnInfo(colInfo)
def SetColumnWidth(self, column, width):
"""
Sets the column width, in pixels.
:param `column`: an integer specifying the column index;
:param `width`: the new width for the column, in pixels.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
self._total_col_width -= self._columns[column].GetWidth()
self._columns[column].SetWidth(width)
self._total_col_width += width
self._owner.AdjustMyScrollbars()
self._owner._dirty = True
def InsertColumnInfo(self, before, colInfo):
"""
Inserts a column to the :class:`TreeListHeaderWindow` at the position specified
by `before`.
:param `before`: the index at which we wish to insert the new column;
:param `colInfo`: an instance of :class:`TreeListColumnInfo`.
"""
if before < 0 or before >= self.GetColumnCount():
raise Exception("Invalid column")
self._columns.insert(before, colInfo)
self._total_col_width += colInfo.GetWidth()
self._owner.AdjustMyScrollbars()
self._owner._dirty = True
def InsertColumn(self, before, text, width=_DEFAULT_COL_WIDTH,
flag=wx.ALIGN_LEFT, image=-1, shown=True, colour=None,
edit=False):
"""
Inserts a column to the :class:`TreeListHeaderWindow` at the position specified
by `before`.
:param `before`: the index at which we wish to insert the new column;
:param `text`: the column text label;
:param `width`: the column width in pixels;
:param `flag`: the column alignment flag, one of ``wx.ALIGN_LEFT``,
``wx.ALIGN_RIGHT``, ``wx.ALIGN_CENTER``;
:param `image`: an index within the normal image list assigned to
:class:`HyperTreeList` specifying the image to use for the column;
:param `shown`: ``True`` to show the column, ``False`` to hide it;
:param `colour`: a valid :class:`wx.Colour`, representing the text foreground colour
for the column;
:param `edit`: ``True`` to set the column as editable, ``False`` otherwise.
"""
colInfo = TreeListColumnInfo(text, width, flag, image, shown, colour,
edit)
self.InsertColumnInfo(before, colInfo)
def RemoveColumn(self, column):
"""
Removes a column from the :class:`TreeListHeaderWindow`.
:param `column`: an integer specifying the column index.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
self._total_col_width -= self._columns[column].GetWidth()
self._columns.pop(column)
self._owner.AdjustMyScrollbars()
self._owner._dirty = True
def SetColumn(self, column, info):
"""
Sets a column using an instance of :class:`TreeListColumnInfo`.
:param `column`: an integer specifying the column index;
:param `info`: an instance of :class:`TreeListColumnInfo`.
"""
if column < 0 or column >= self.GetColumnCount():
raise Exception("Invalid column")
w = self._columns[column].GetWidth()
self._columns[column] = info
if w != info.GetWidth():
self._total_col_width += info.GetWidth() - w
self._owner.AdjustMyScrollbars()
self._owner._dirty = True
# ---------------------------------------------------------------------------
# TreeListItem
# ---------------------------------------------------------------------------
class TreeListItem(GenericTreeItem):
"""
This class holds all the information and methods for every single item in
:class:`HyperTreeList`.
:note: Subclassed from :class:`~wx.lib.agw.customtreectrl.GenericTreeItem`.
"""
def __init__(self, mainWin, parent, text="", ct_type=0, wnd=None, image=-1, selImage=-1, data=None):
"""
Default class constructor.
For internal use: do not call it in your code!
:param `mainWin`: the main :class:`HyperTreeList` window, in this case an instance
of :class:`TreeListMainWindow`;
:param `parent`: the tree item parent (may be ``None`` for root items);
:param `text`: the tree item text;
:param `ct_type`: the tree item kind. May be one of the following integers:
=============== ==========================
`ct_type` Value Description
=============== ==========================
0 A normal item
1 A checkbox-like item
2 A radiobutton-type item
=============== ==========================
:param `wnd`: if not ``None``, a non-toplevel window to be displayed next to
the item;
:param `image`: an index within the normal image list specifying the image to
use for the item in unselected state;
:param `selImage`: an index within the normal image list specifying the image to
use for the item in selected state; if `image` > -1 and `selImage` is -1, the
same image is used for both selected and unselected items;
:param `data`: associate the given Python object `data` with the item.
:note: Regarding radiobutton-type items (with `ct_type` = 2), the following
approach is used:
- All peer-nodes that are radiobuttons will be mutually exclusive. In other words,
only one of a set of radiobuttons that share a common parent can be checked at
once. If a radiobutton node becomes checked, then all of its peer radiobuttons
must be unchecked.
- If a radiobutton node becomes unchecked, then all of its child nodes will become
inactive.
"""
self._col_images = []
self._owner = mainWin
self._hidden = False
# We don't know the height here yet.
self._text_x = 0
GenericTreeItem.__init__(self, parent, text, ct_type, wnd, image, selImage, data)
self._wnd = [None] # are we holding a window?
if wnd:
self.SetWindow(wnd)
def IsHidden(self):
""" Returns whether the item is hidden or not. """
return self._hidden
def Hide(self, hide):
"""
Hides/shows the :class:`TreeListItem`.
:param `hide`: ``True`` to hide the item, ``False`` to show it.
:note: Always use :meth:`~HyperTreeList.HideItem` instead to update the tree properly.
"""
self._hidden = hide
def DeleteChildren(self, tree):
"""
Deletes the item children.
:param `tree`: the main :class:`TreeListMainWindow` instance.
"""
for child in self._children:
child.DeleteChildren(tree)
if tree:
tree.Delete(child)
if child == tree._selectItem:
tree._selectItem = None
# We have to destroy the associated window
for wnd in child._wnd:
if wnd:
wnd.Hide()
wnd.Destroy()
child._wnd = []
if child in tree._itemWithWindow:
tree._itemWithWindow.remove(child)
del child
self._children = []
def HitTest(self, point, theCtrl, flags, column, level):
"""
HitTest method for an item. Called from the main window HitTest.
:param `point`: the point to test for the hit (an instance of :class:`wx.Point`);
:param `theCtrl`: the main :class:`TreeListMainWindow` tree;
:param `flags`: a bitlist of hit locations;
:param `column`: an integer specifying the column index;
:param `level`: the item's level inside the tree hierarchy.
:see: :meth:`TreeListMainWindow.HitTest() <TreeListMainWindow.HitTest>` method for the flags explanation.
"""
# Hidden items are never evaluated.
if self.IsHidden():
return None, flags, wx.NOT_FOUND
# for a hidden root node, don't evaluate it, but do evaluate children
if not theCtrl.HasAGWFlag(wx.TR_HIDE_ROOT) or level > 0:
# reset any previous hit infos
flags = 0
column = -1
header_win = theCtrl._owner.GetHeaderWindow()
# check for right of all columns (outside)
if point.x > header_win.GetWidth():
return None, flags, wx.NOT_FOUND
# evaluate if y-pos is okay
h = theCtrl.GetLineHeight(self)
if point.y >= self._y and point.y <= self._y + h:
maincol = theCtrl.GetMainColumn()
# check for above/below middle
y_mid = self._y + h//2
if point.y < y_mid:
flags |= wx.TREE_HITTEST_ONITEMUPPERPART
else:
flags |= wx.TREE_HITTEST_ONITEMLOWERPART
# check for button hit
if self.HasPlus() and theCtrl.HasButtons():
bntX = self._x - theCtrl._btnWidth2
bntY = y_mid - theCtrl._btnHeight2
if ((point.x >= bntX) and (point.x <= (bntX + theCtrl._btnWidth)) and
(point.y >= bntY) and (point.y <= (bntY + theCtrl._btnHeight))):
flags |= wx.TREE_HITTEST_ONITEMBUTTON
column = maincol
return self, flags, column
# check for hit on the check icons
if self.GetType() != 0:
imageWidth = 0
numberOfMargins = 1
if self.GetCurrentImage() != _NO_IMAGE:
imageWidth = theCtrl._imgWidth
numberOfMargins += 1
chkX = self._text_x - imageWidth - numberOfMargins*_MARGIN - theCtrl._checkWidth
chkY = y_mid - theCtrl._checkHeight2
if ((point.x >= chkX) and (point.x <= (chkX + theCtrl._checkWidth)) and
(point.y >= chkY) and (point.y <= (chkY + theCtrl._checkHeight))):
flags |= TREE_HITTEST_ONITEMCHECKICON
return self, flags, maincol
# check for image hit
if self.GetCurrentImage() != _NO_IMAGE:
imgX = self._text_x - theCtrl._imgWidth - _MARGIN
imgY = y_mid - theCtrl._imgHeight2
if ((point.x >= imgX) and (point.x <= (imgX + theCtrl._imgWidth)) and
(point.y >= imgY) and (point.y <= (imgY + theCtrl._imgHeight))):
flags |= wx.TREE_HITTEST_ONITEMICON
column = maincol
return self, flags, column
# check for label hit
if ((point.x >= self._text_x) and (point.x <= (self._text_x + self._width))):
flags |= wx.TREE_HITTEST_ONITEMLABEL
column = maincol
return self, flags, column
# check for indent hit after button and image hit
if point.x < self._x:
flags |= wx.TREE_HITTEST_ONITEMINDENT
column = -1 # considered not belonging to main column
return self, flags, column
# check for right of label
end = 0
for i in range(maincol):
end += header_win.GetColumnWidth(i)
if ((point.x > (self._text_x + self._width)) and (point.x <= end)):
flags |= wx.TREE_HITTEST_ONITEMRIGHT
column = -1 # considered not belonging to main column
return self, flags, column
# else check for each column except main
x = 0
for j in range(theCtrl.GetColumnCount()):
if not header_win.IsColumnShown(j):
continue
w = header_win.GetColumnWidth(j)
if ((j != maincol) and (point.x >= x and point.x < x+w)):
flags |= TREE_HITTEST_ONITEMCOLUMN
column = j
return self, flags, column
x += w
# no special flag or column found
return self, flags, column
# if children not expanded, return no item
if not self.IsExpanded():
return None, flags, wx.NOT_FOUND
# in any case evaluate children
for child in self._children:
hit, flags, column = child.HitTest(point, theCtrl, flags, column, level+1)
if hit:
return hit, flags, column
# not found
return None, flags, wx.NOT_FOUND
def GetText(self, column=None):
"""
Returns the item text label.
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if len(self._text) > 0:
if self._owner.IsVirtual():
return self._owner.GetItemText(self._data, column)
else:
return self._text[column]
return ""
def GetImage(self, which=wx.TreeItemIcon_Normal, column=None):
"""
Returns the item image for a particular item state.
:param `which`: can be one of the following bits:
================================= ========================
Item State Description
================================= ========================
``TreeItemIcon_Normal`` To get the normal item image
``TreeItemIcon_Selected`` To get the selected item image (i.e. the image which is shown when the item is currently selected)
``TreeItemIcon_Expanded`` To get the expanded image (this only makes sense for items which have children - then this image is shown when the item is expanded and the normal image is shown when it is collapsed)
``TreeItemIcon_SelectedExpanded`` To get the selected expanded image (which is shown when an expanded item is currently selected)
================================= ========================
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if column == self._owner.GetMainColumn():
return self._images[which]
if column < len(self._col_images):
return self._col_images[column]
return _NO_IMAGE
def GetCurrentImage(self, column=None):
"""
Returns the current item image.
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if column != self._owner.GetMainColumn():
return self.GetImage(column=column)
image = GenericTreeItem.GetCurrentImage(self)
return image
def SetText(self, column, text):
"""
Sets the item text label.
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used;
:param `text`: a string specifying the new item label.
:note: Call :meth:`~HyperTreeList.SetItemText` instead to refresh the tree properly.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if column < len(self._text):
self._text[column] = text
elif column < self._owner.GetColumnCount():
self._text.extend([""] * (column - len(self._text) + 1))
self._text[column] = text
def SetImage(self, column, image, which):
"""
Sets the item image for a particular item state.
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used;
:param `image`: an index within the normal image list specifying the image to use;
:param `which`: the item state.
:see: :meth:`~TreeListItem.GetImage` for a list of valid item states.
:note: Call :meth:`~HyperTreeList.SetItemImage` instead to refresh the tree properly.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if column == self._owner.GetMainColumn():
self._images[which] = image
elif column < len(self._col_images):
self._col_images[column] = image
elif column < self._owner.GetColumnCount():
self._col_images.extend([_NO_IMAGE] * (column - len(self._col_images) + 1))
self._col_images[column] = image
def GetTextX(self):
""" Returns the `x` position of the item text. """
return self._text_x
def SetTextX(self, text_x):
"""
Sets the `x` position of the item text. Used internally to position
text according to column alignment.
:param `text_x`: the `x` position of the item text.
"""
self._text_x = text_x
def SetWindow(self, wnd, column=None):
"""
Sets the window associated to the item. Internal use only.
:param `wnd`: a non-toplevel window to be displayed next to the item;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
:note: Always use :meth:`~HyperTreeList.SetItemWindow` instead to update the tree properly.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if type(self._wnd) != type([]):
self._wnd = [self._wnd]
if column < len(self._wnd):
self._wnd[column] = wnd
elif column < self._owner.GetColumnCount():
self._wnd.extend([None] * (column - len(self._wnd) + 1))
self._wnd[column] = wnd
if self not in self._owner._itemWithWindow:
self._owner._itemWithWindow.append(self)
# We have to bind the wx.EVT_SET_FOCUS for the associated window
# No other solution to handle the focus changing from an item in
# HyperTreeList and the window associated to an item
# Do better strategies exist?
wnd.Bind(wx.EVT_SET_FOCUS, self.OnSetFocus)
# We don't show the window if the item is collapsed
if not self.IsExpanded():
wnd.Show(False)
# The window is enabled only if the item is enabled
wnd.Enable(self._enabled)
def OnSetFocus(self, event):
"""
Handles the ``wx.EVT_SET_FOCUS`` event for a window associated to an item.
:param `event`: a :class:`FocusEvent` event to be processed.
"""
treectrl = self._owner
select = treectrl.GetSelection()
# If the window is associated to an item that currently is selected
# (has focus) we don't kill the focus. Otherwise we do it.
if select != self:
treectrl._hasFocus = False
else:
treectrl._hasFocus = True
event.Skip()
def GetWindow(self, column=None):
"""
Returns the window associated to the item.
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if column >= len(self._wnd):
return None
return self._wnd[column]
def DeleteWindow(self, column=None):
"""
Deletes the window associated to the item (if any).
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if column >= len(self._wnd):
return
wnd = self._wnd[column]
if wnd:
wnd.Destroy()
self._wnd[column] = None
if not any(self._wnd) and self in self._owner._itemWithWindow:
self._owner._itemWithWindow.remove(self)
def GetWindowEnabled(self, column=None):
"""
Returns whether the window associated with an item is enabled or not.
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if not self._wnd[column]:
raise Exception("\nERROR: This Item Has No Window Associated At Column %s"%column)
return self._wnd[column].IsEnabled()
def SetWindowEnabled(self, enable=True, column=None):
"""
Sets whether the window associated with an item is enabled or not.
:param `enable`: ``True`` to enable the associated window, ``False`` to disable it;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if not self._wnd[column]:
raise Exception("\nERROR: This Item Has No Window Associated At Column %s"%column)
self._wnd[column].Enable(enable)
def GetWindowSize(self, column=None):
"""
Returns the associated window size.
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
if not self._wnd[column]:
raise Exception("\nERROR: This Item Has No Window Associated At Column %s"%column)
return self._wnd[column].GetSize()
def IsExpanded(self):
"""
Returns whether the item is expanded or not.
:return: ``True`` if the item is expanded, ``False`` if it is collapsed or hidden.
"""
if self.IsHidden():
return False
return not self._isCollapsed
def IsEnabled(self):
"""
Returns whether the item is enabled or not.
:return: ``True`` if the item is enabled, ``False`` if it is disabled or hidden.
"""
if self.IsHidden():
return False
return self._enabled
#-----------------------------------------------------------------------------
# EditTextCtrl (internal)
#-----------------------------------------------------------------------------
class EditCtrl(object):
"""
Base class for controls used for in-place edit.
"""
def __init__(self, parent, id=wx.ID_ANY, item=None, column=None, owner=None,
value="", pos=wx.DefaultPosition, size=wx.DefaultSize, style=0,
validator=wx.DefaultValidator, name="editctrl", **kwargs):
"""
Default class constructor.
:param `parent`: the window parent. Must not be ``None``;
:param `id`: window identifier. A value of -1 indicates a default value;
:param `item`: an instance of :class:`TreeListItem`;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used;
:param `owner`: the window owner, in this case an instance of :class:`TreeListMainWindow`;
:param `value`: the initial value in the control;
:param `pos`: the control position. A value of (-1, -1) indicates a default position,
chosen by either the windowing system or wxPython, depending on platform;
:param `size`: the control size. A value of (-1, -1) indicates a default size,
chosen by either the windowing system or wxPython, depending on platform;
:param `style`: the window style;
:param `validator`: the window validator;
:param `name`: the window name.
"""
self._owner = owner
self._startValue = value
self._itemEdited = item
self._finished = False
column = (column is not None and [column] or [self._owner.GetMainColumn()])[0]
self._column = column
w = self._itemEdited.GetWidth()
h = self._itemEdited.GetHeight()
wnd = self._itemEdited.GetWindow(column)
if wnd:
w = w - self._itemEdited.GetWindowSize(column)[0]
h = 0
x = item.GetX()
if column > 0:
x = 0
for i in range(column):
if not self._owner.GetParent()._header_win.IsColumnShown(i):
continue # do next column if not shown
col = self._owner.GetParent()._header_win.GetColumn(i)
wCol = col.GetWidth()
x += wCol
x, y = self._owner.CalcScrolledPosition(x+2, item.GetY())
image_w = image_h = wcheck = hcheck = 0
image = item.GetCurrentImage(column)
if image != _NO_IMAGE:
if self._owner._imageListNormal:
image_w, image_h = self._owner._imageListNormal.GetSize(image)
image_w += 2*_MARGIN
else:
raise Exception("\n ERROR: You Must Create An Image List To Use Images!")
if column > 0:
checkimage = item.GetCurrentCheckedImage()
if checkimage is not None:
wcheck, hcheck = self._owner._imageListCheck.GetSize(checkimage)
wcheck += 2*_MARGIN
if wnd:
h = max(hcheck, image_h)
dc = wx.ClientDC(self._owner)
h = max(h, dc.GetTextExtent("Aq")[1])
h = h + 2
# FIXME: what are all these hardcoded 4, 8 and 11s really?
x += image_w + wcheck
w -= image_w + 2*_MARGIN + wcheck
super(EditCtrl, self).__init__(parent, id, value, wx.Point(x,y),
wx.Size(w+15, h),
style=style|wx.SIMPLE_BORDER,
name=name, **kwargs)
if wx.Platform == "__WXMAC__":
self.SetFont(owner.GetFont())
bs = self.GetBestSize()
self.SetSize((-1, bs.height))
self.Bind(wx.EVT_KILL_FOCUS, self.OnKillFocus)
def item(self):
"""Returns the item currently edited."""
return self._itemEdited
def column(self):
"""Returns the column currently edited."""
return self._column
def StopEditing(self):
"""Suddenly stops the editing."""
self._owner.OnCancelEdit()
self.Finish()
def Finish(self):
"""Finish editing."""
if not self._finished:
self._finished = True
self._owner.SetFocusIgnoringChildren()
self._owner.ResetEditControl()
def AcceptChanges(self):
"""Accepts/refuses the changes made by the user."""
value = self.GetValue()
if value == self._startValue:
# nothing changed, always accept
# when an item remains unchanged, the owner
# needs to be notified that the user decided
# not to change the tree item label, and that
# the edit has been cancelled
self._owner.OnCancelEdit()
return True
else:
return self._owner.OnAcceptEdit(value)
def OnKillFocus(self, event):
"""
Handles the ``wx.EVT_KILL_FOCUS`` event for :class:`EditCtrl`
:param `event`: a :class:`FocusEvent` event to be processed.
"""
# We must let the native control handle focus, too, otherwise
# it could have problems with the cursor (e.g., in wxGTK).
event.Skip()
class EditTextCtrl(EditCtrl, wx.TextCtrl):
"""
Text control used for in-place edit.
"""
def __init__(self, parent, id=wx.ID_ANY, item=None, column=None, owner=None,
value="", pos=wx.DefaultPosition, size=wx.DefaultSize, style=0,
validator=wx.DefaultValidator, name="edittextctrl", **kwargs):
"""
Default class constructor.
For internal use: do not call it in your code!
:param `parent`: the window parent. Must not be ``None``;
:param `id`: window identifier. A value of -1 indicates a default value;
:param `item`: an instance of :class:`TreeListItem`;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used;
:param `owner`: the window owner, in this case an instance of :class:`TreeListMainWindow`;
:param `value`: the initial value in the text control;
:param `pos`: the control position. A value of (-1, -1) indicates a default position,
chosen by either the windowing system or wxPython, depending on platform;
:param `size`: the control size. A value of (-1, -1) indicates a default size,
chosen by either the windowing system or wxPython, depending on platform;
:param `style`: the window style;
:param `validator`: the window validator;
:param `name`: the window name.
"""
super(EditTextCtrl, self).__init__(parent, id, item, column, owner,
value, pos, size, style, validator,
name, **kwargs)
self.SelectAll()
self.Bind(wx.EVT_CHAR, self.OnChar)
self.Bind(wx.EVT_KEY_UP, self.OnKeyUp)
def OnChar(self, event):
"""
Handles the ``wx.EVT_CHAR`` event for :class:`EditTextCtrl`.
:param `event`: a :class:`KeyEvent` event to be processed.
"""
keycode = event.GetKeyCode()
if keycode in [wx.WXK_RETURN, wx.WXK_NUMPAD_ENTER] and not event.ShiftDown():
# Notify the owner about the changes
self.AcceptChanges()
# Even if vetoed, close the control (consistent with MSW)
wx.CallAfter(self.Finish)
elif keycode == wx.WXK_ESCAPE:
self.StopEditing()
else:
event.Skip()
def OnKeyUp(self, event):
"""
Handles the ``wx.EVT_KEY_UP`` event for :class:`EditTextCtrl`.
:param `event`: a :class:`KeyEvent` event to be processed.
"""
if not self._finished:
# auto-grow the textctrl:
parentSize = self._owner.GetSize()
myPos = self.GetPosition()
mySize = self.GetSize()
sx, sy = self.GetTextExtent(self.GetValue() + "M")
if myPos.x + sx > parentSize.x:
sx = parentSize.x - myPos.x
if mySize.x > sx:
sx = mySize.x
self.SetSize((sx, -1))
event.Skip()
# ---------------------------------------------------------------------------
# TreeListMainWindow implementation
# ---------------------------------------------------------------------------
class TreeListMainWindow(CustomTreeCtrl):
"""
This class represents the main window (and thus the main column) in :class:`HyperTreeList`.
:note: This is a subclass of :class:`~wx.lib.agw.customtreectrl.CustomTreeCtrl`.
"""
def __init__(self, parent, id=wx.ID_ANY, pos=wx.DefaultPosition, size=wx.DefaultSize,
style=0, agwStyle=wx.TR_DEFAULT_STYLE, validator=wx.DefaultValidator,
name="wxtreelistmainwindow"):
"""
Default class constructor.
:param `parent`: parent window. Must not be ``None``;
:param `id`: window identifier. A value of -1 indicates a default value;
:param `pos`: the control position. A value of (-1, -1) indicates a default position,
chosen by either the windowing system or wxPython, depending on platform;
:param `size`: the control size. A value of (-1, -1) indicates a default size,
chosen by either the windowing system or wxPython, depending on platform;
:param `style`: the underlying :class:`ScrolledWindow` style;
:param `agwStyle`: the AGW-specific :class:`TreeListMainWindow` window style. This can be a
combination of the following bits:
============================== =========== ==================================================
Window Styles Hex Value Description
============================== =========== ==================================================
``TR_NO_BUTTONS`` 0x0 For convenience to document that no buttons are to be drawn.
``TR_SINGLE`` 0x0 For convenience to document that only one item may be selected at a time. Selecting another item causes the current selection, if any, to be deselected. This is the default.
``TR_HAS_BUTTONS`` 0x1 Use this style to show + and - buttons to the left of parent items.
``TR_NO_LINES`` 0x4 Use this style to hide vertical level connectors.
``TR_LINES_AT_ROOT`` 0x8 Use this style to show lines between root nodes. Only applicable if ``TR_HIDE_ROOT`` is set and ``TR_NO_LINES`` is not set.
``TR_DEFAULT_STYLE`` 0x9 The set of flags that are closest to the defaults for the native control for a particular toolkit.
``TR_TWIST_BUTTONS`` 0x10 Use old Mac-twist style buttons.
``TR_MULTIPLE`` 0x20 Use this style to allow a range of items to be selected. If a second range is selected, the current range, if any, is deselected.
``TR_EXTENDED`` 0x40 Use this style to allow disjoint items to be selected. (Only partially implemented; may not work in all cases).
``TR_HAS_VARIABLE_ROW_HEIGHT`` 0x80 Use this style to cause row heights to be just big enough to fit the content. If not set, all rows use the largest row height. The default is that this flag is unset.
``TR_EDIT_LABELS`` 0x200 Use this style if you wish the user to be able to edit labels in the tree control.
``TR_ROW_LINES`` 0x400 Use this style to draw a contrasting border between displayed rows.
``TR_HIDE_ROOT`` 0x800 Use this style to suppress the display of the root node, effectively causing the first-level nodes to appear as a series of root nodes.
``TR_FULL_ROW_HIGHLIGHT`` 0x2000 Use this style to have the background colour and the selection highlight extend over the entire horizontal row of the tree control window.
``TR_AUTO_CHECK_CHILD`` 0x4000 Only meaningful for checkbox-type items: when a parent item is checked/unchecked its children are checked/unchecked as well.
``TR_AUTO_TOGGLE_CHILD`` 0x8000 Only meaningful for checkbox-type items: when a parent item is checked/unchecked its children are toggled accordingly.
``TR_AUTO_CHECK_PARENT`` 0x10000 Only meaningful for checkbox-type items: when a child item is checked/unchecked its parent item is checked/unchecked as well.
``TR_ALIGN_WINDOWS`` 0x20000 Flag used to align windows (in items with windows) at the same horizontal position.
``TR_NO_HEADER`` 0x40000 Use this style to hide the columns header.
``TR_ELLIPSIZE_LONG_ITEMS`` 0x80000 Flag used to ellipsize long items when the horizontal space for :class:`~wx.lib.agw.customtreectrl.CustomTreeCtrl` is low.
``TR_VIRTUAL`` 0x100000 :class:`HyperTreeList` will have virtual behaviour.
============================== =========== ==================================================
:param `validator`: window validator;
:param `name`: window name.
"""
self._buffered = False
CustomTreeCtrl.__init__(self, parent, id, pos, size, style, agwStyle, validator, name)
self._shiftItem = None
self._editItem = None
self._selectItem = None
self._curColumn = -1 # no current column
self._owner = parent
self._main_column = 0
self._dragItem = None
self._imgWidth = self._imgWidth2 = 0
self._imgHeight = self._imgHeight2 = 0
self._btnWidth = self._btnWidth2 = 0
self._btnHeight = self._btnHeight2 = 0
self._checkWidth = self._checkWidth2 = 0
self._checkHeight = self._checkHeight2 = 0
self._agwStyle = agwStyle
self._current = None
# TextCtrl initial settings for editable items
self._editTimer = TreeListEditTimer(self)
self._left_down_selection = False
self._dragTimer = wx.Timer(self)
self._findTimer = wx.Timer(self)
self.Bind(wx.EVT_PAINT, self.OnPaint)
self.Bind(wx.EVT_MOUSE_EVENTS, self.OnMouse)
self.Bind(wx.EVT_SCROLLWIN, self.OnScroll)
self.Bind(wx.EVT_MOUSE_CAPTURE_LOST, lambda evt: None)
# Sets the focus to ourselves: this is useful if you have items
# with associated widgets.
self.SetFocus()
self.SetBackgroundStyle(wx.BG_STYLE_ERASE)
def SetBuffered(self, buffered):
"""
Sets/unsets the double buffering for the main window.
:param `buffered`: ``True`` to use double-buffering, ``False`` otherwise.
:note: Currently we are using double-buffering only on Windows XP.
"""
self._buffered = buffered
if buffered:
self.SetBackgroundStyle(wx.BG_STYLE_PAINT)
else:
self.SetBackgroundStyle(wx.BG_STYLE_ERASE)
def IsVirtual(self):
""" Returns ``True`` if :class:`TreeListMainWindow` has the ``TR_VIRTUAL`` flag set. """
return self.HasAGWFlag(TR_VIRTUAL)
#-----------------------------------------------------------------------------
# functions to work with tree items
#-----------------------------------------------------------------------------
def GetItemImage(self, item, column=None, which=wx.TreeItemIcon_Normal):
"""
Returns the item image.
:param `item`: an instance of :class:`TreeListItem`;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used;
:param `which`: can be one of the following bits:
================================= ========================
Item State Description
================================= ========================
``TreeItemIcon_Normal`` To get the normal item image
``TreeItemIcon_Selected`` To get the selected item image (i.e. the image which is shown when the item is currently selected)
``TreeItemIcon_Expanded`` To get the expanded image (this only makes sense for items which have children - then this image is shown when the item is expanded and the normal image is shown when it is collapsed)
``TreeItemIcon_SelectedExpanded`` To get the selected expanded image (which is shown when an expanded item is currently selected)
================================= ========================
"""
column = (column is not None and [column] or [self._main_column])[0]
if column < 0:
return _NO_IMAGE
return item.GetImage(which, column)
def SetItemImage(self, item, image, column=None, which=wx.TreeItemIcon_Normal):
"""
Sets the item image for a particular item state.
:param `item`: an instance of :class:`TreeListItem`;
:param `image`: an index within the normal image list specifying the image to use;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used;
:param `which`: the item state.
:see: :meth:`~TreeListMainWindow.GetItemImage` for a list of valid item states.
"""
column = (column is not None and [column] or [self._main_column])[0]
if column < 0:
return
item.SetImage(column, image, which)
dc = wx.ClientDC(self)
self.CalculateSize(item, dc)
self.RefreshLine(item)
def GetItemWindowEnabled(self, item, column=None):
"""
Returns whether the window associated with an item is enabled or not.
:param `item`: an instance of :class:`TreeListItem`;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
return item.GetWindowEnabled(column)
def GetItemWindow(self, item, column=None):
"""
Returns the window associated with an item.
:param `item`: an instance of :class:`TreeListItem`;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
return item.GetWindow(column)
def SetItemWindow(self, item, window, column=None):
"""
Sets the window associated to an item.
:param `item`: an instance of :class:`TreeListItem`;
:param `wnd`: a non-toplevel window to be displayed next to the item;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
:note: The window parent should not be the :class:`HyperTreeList` itself, but actually
an instance of :class:`TreeListMainWindow`. The current solution here is to reparent
the window to this class.
"""
# Reparent the window to ourselves
if window.GetParent() != self:
window.Reparent(self)
item.SetWindow(window, column)
if window:
self._hasWindows = True
# Recalculate tree during idle time.
self._dirty = True
def SetItemWindowEnabled(self, item, enable=True, column=None):
"""
Sets whether the window associated with an item is enabled or not.
:param `item`: an instance of :class:`TreeListItem`;
:param `enable`: ``True`` to enable the associated window, ``False`` to disable it;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
item.SetWindowEnabled(enable, column)
def DeleteItemWindow(self, item, column=None):
"""
Deletes the window in the column associated to an item (if any).
:param `item`: an instance of :class:`GenericTreeItem`.
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
item.DeleteWindow(column=column)
# ----------------------------------------------------------------------------
# navigation
# ----------------------------------------------------------------------------
def IsItemVisible(self, item):
"""
Returns whether the item is visible or not.
:param `item`: an instance of :class:`TreeListItem`;
"""
if item.IsHidden():
return False
# An item is only visible if it's not a descendant of a collapsed item
parent = item.GetParent()
while parent:
if not parent.IsExpanded():
return False
parent = parent.GetParent()
startX, startY = self.GetViewStart()
clientSize = self.GetClientSize()
rect = self.GetBoundingRect(item)
if not rect:
return False
if rect.GetWidth() == 0 or rect.GetHeight() == 0:
return False
if rect.GetBottom() < 0 or rect.GetTop() > clientSize.y:
return False
if rect.GetRight() < 0 or rect.GetLeft() > clientSize.x:
return False
return True
def GetPrevChild(self, item, cookie):
"""
Returns the previous child of an item.
:param `item`: an instance of :class:`TreeListItem`;
:param `cookie`: a parameter which is opaque for the application but is necessary
for the library to make these functions reentrant (i.e. allow more than one
enumeration on one and the same object simultaneously).
:note: This method returns ``None`` if there are no further siblings.
"""
children = item.GetChildren()
if cookie >= 0:
return children[cookie], cookie-1
else:
# there are no more of them
return None, cookie
def GetFirstExpandedItem(self):
""" Returns the first item which is in the expanded state. """
return self.GetNextExpanded(self.GetRootItem())
def GetNextExpanded(self, item):
"""
Returns the next expanded item after the input one.
:param `item`: an instance of :class:`TreeListItem`.
"""
return CustomTreeCtrl.GetNextExpanded(self, item)
def GetPrevExpanded(self, item):
"""
Returns the previous expanded item before the input one.
:param `item`: an instance of :class:`TreeListItem`.
"""
return CustomTreeCtrl.GetPrevExpanded(self, item)
def GetFirstVisibleItem(self):
""" Returns the first visible item. """
root = self.GetRootItem()
if not root:
return None
if not self.HasAGWFlag(TR_HIDE_ROOT):
if self.IsVisible(root):
return root
return self.GetNextVisible(root)
def GetPrevVisible(self, item):
"""
Returns the previous visible item before the input one.
:param `item`: an instance of :class:`TreeListItem`.
"""
i = self.GetPrev(item)
while i:
if self.IsItemVisible(i):
return i
i = self.GetPrev(i)
return None
# ----------------------------------------------------------------------------
# operations
# ----------------------------------------------------------------------------
def DoInsertItem(self, parent, previous, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, *ignored_args):
"""
Actually inserts an item in the tree.
:param `parentId`: an instance of :class:`TreeListItem` representing the
item's parent;
:param `previous`: the index at which we should insert the item;
:param `text`: the item text label;
:param `ct_type`: the item type (see :meth:`CustomTreeCtrl.SetItemType() <lib.agw.customtreectrl.CustomTreeCtrl.SetItemType>` for a list of valid
item types);
:param `wnd`: if not ``None``, a non-toplevel window to show next to the item;
:param `image`: an index within the normal image list specifying the image to
use for the item in unselected state;
:param `selImage`: an index within the normal image list specifying the image to
use for the item in selected state; if `image` > -1 and `selImage` is -1, the
same image is used for both selected and unselected items;
:param `data`: associate the given Python object `data` with the item.
:param `ignored_args`: unused at the moment, this parameter is present to comply with
:meth:`CustomTreeCtrl.DoInsertItem() <lib.agw.customtreectrl.CustomTreeCtrl.DoInsertItem>` changed API.
"""
self._dirty = True # do this first so stuff below doesn't cause flicker
arr = [""]*self.GetColumnCount()
arr[self._main_column] = text
if not parent:
# should we give a warning here?
return self.AddRoot(text, ct_type, wnd, image, selImage, data)
self._dirty = True # do this first so stuff below doesn't cause flicker
item = TreeListItem(self, parent, arr, ct_type, wnd, image, selImage, data)
if wnd is not None:
self._hasWindows = True
self._itemWithWindow.append(item)
parent.Insert(item, previous)
return item
def AddRoot(self, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None):
"""
Adds a root item to the :class:`TreeListMainWindow`.
:param `text`: the item text label;
:param `ct_type`: the item type (see :meth:`CustomTreeCtrl.SetItemType() <lib.agw.customtreectrl.CustomTreeCtrl.SetItemType>`
for a list of valid item types);
:param `wnd`: if not ``None``, a non-toplevel window to show next to the item;
:param `image`: an index within the normal image list specifying the image to
use for the item in unselected state;
:param `selImage`: an index within the normal image list specifying the image to
use for the item in selected state; if `image` > -1 and `selImage` is -1, the
same image is used for both selected and unselected items;
:param `data`: associate the given Python object `data` with the item.
.. warning::
Only one root is allowed to exist in any given instance of :class:`TreeListMainWindow`.
"""
if self._anchor:
raise Exception("\nERROR: Tree Can Have Only One Root")
if wnd is not None and not (self._agwStyle & wx.TR_HAS_VARIABLE_ROW_HEIGHT):
raise Exception("\nERROR: In Order To Append/Insert Controls You Have To Use The Style TR_HAS_VARIABLE_ROW_HEIGHT")
if text.find("\n") >= 0 and not (self._agwStyle & wx.TR_HAS_VARIABLE_ROW_HEIGHT):
raise Exception("\nERROR: In Order To Append/Insert A MultiLine Text You Have To Use The Style TR_HAS_VARIABLE_ROW_HEIGHT")
if ct_type < 0 or ct_type > 2:
raise Exception("\nERROR: Item Type Should Be 0 (Normal), 1 (CheckBox) or 2 (RadioButton). ")
self._dirty = True # do this first so stuff below doesn't cause flicker
arr = [""]*self.GetColumnCount()
arr[self._main_column] = text
self._anchor = TreeListItem(self, None, arr, ct_type, wnd, image, selImage, data)
if wnd is not None:
self._hasWindows = True
self._itemWithWindow.append(self._anchor)
if self.HasAGWFlag(wx.TR_HIDE_ROOT):
# if root is hidden, make sure we can navigate
# into children
self._anchor.SetHasPlus()
self._anchor.Expand()
self.CalculatePositions()
if not self.HasAGWFlag(wx.TR_MULTIPLE):
self._current = self._key_current = self._selectItem = self._anchor
self._current.SetHilight(True)
return self._anchor
def Delete(self, item):
"""
Deletes an item.
:param `item`: an instance of :class:`TreeListItem`.
"""
if not item:
raise Exception("\nERROR: Invalid Tree Item. ")
self._dirty = True # do this first so stuff below doesn't cause flicker
if self._editCtrl != None and self.IsDescendantOf(item, self._editCtrl.item()):
# can't delete the item being edited, cancel editing it first
self._editCtrl.StopEditing()
# don't stay with invalid self._shiftItem or we will crash in the next call to OnChar()
changeKeyCurrent = False
itemKey = self._shiftItem
while itemKey:
if itemKey == item: # self._shiftItem is a descendant of the item being deleted
changeKeyCurrent = True
break
itemKey = itemKey.GetParent()
parent = item.GetParent()
if parent:
parent.GetChildren().remove(item) # remove by value
if changeKeyCurrent:
self._shiftItem = parent
self.SendDeleteEvent(item)
if self._selectItem == item:
self._selectItem = None
# Remove the item with window
if item in self._itemWithWindow:
for wnd in item._wnd:
if wnd:
wnd.Hide()
wnd.Destroy()
item._wnd = []
self._itemWithWindow.remove(item)
item.DeleteChildren(self)
del item
# Don't leave edit or selection on a child which is about to disappear
def ChildrenClosing(self, item):
"""
We are about to destroy the item's children.
:param `item`: an instance of :class:`TreeListItem`.
"""
if self._editCtrl != None and item != self._editCtrl.item() and self.IsDescendantOf(item, self._editCtrl.item()):
self._editCtrl.StopEditing()
if self.IsDescendantOf(item, self._selectItem):
self._selectItem = item
if item != self._current and self.IsDescendantOf(item, self._current):
self._current.SetHilight(False)
self._current = None
def DeleteRoot(self):
"""
Removes the tree root item (and subsequently all the items in
:class:`TreeListMainWindow`.
"""
if self._anchor:
self._dirty = True
self._anchor.DeleteChildren(self)
self.Delete(self._anchor)
self.SendDeleteEvent(self._anchor)
self._current = None
self._selectItem = None
del self._anchor
self._anchor = None
def DeleteAllItems(self):
""" Delete all items in the :class:`TreeListMainWindow`. """
self.DeleteRoot()
def HideWindows(self):
"""Scans all item windows in the tree and hides those whose items
they belong to are not currently visible. Used internally. """
for child in self._itemWithWindow:
if not self.IsItemVisible(child):
for column in range(self.GetColumnCount()):
wnd = child.GetWindow(column)
if wnd and wnd.IsShown():
wnd.Hide()
def EnableItem(self, item, enable=True, torefresh=True):
"""
Enables/disables an item.
:param `item`: an instance of :class:`TreeListItem`;
:param `enable`: ``True`` to enable the item, ``False`` otherwise;
:param `torefresh`: whether to redraw the item or not.
"""
if item.IsEnabled() == enable:
return
if not enable and item.IsSelected():
self.DoSelectItem(item, not self.HasAGWFlag(wx.TR_MULTIPLE))
item.Enable(enable)
for column in range(self.GetColumnCount()):
wnd = item.GetWindow(column)
# Handles the eventual window associated to the item
if wnd:
wnd.Enable(enable)
if torefresh:
# We have to refresh the item line
dc = wx.ClientDC(self)
self.CalculateSize(item, dc)
self.RefreshLine(item)
def IsItemEnabled(self, item):
"""
Returns whether an item is enabled or disabled.
:param `item`: an instance of :class:`TreeListItem`.
"""
return item.IsEnabled()
def GetCurrentItem(self):
""" Returns the current item. """
return self._current
def GetColumnCount(self):
""" Returns the total number of columns. """
return self._owner.GetHeaderWindow().GetColumnCount()
def SetMainColumn(self, column):
"""
Sets the :class:`HyperTreeList` main column (i.e. the position of the underlying
:class:`~wx.lib.agw.customtreectrl.CustomTreeCtrl`.
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
if column >= 0 and column < self.GetColumnCount():
self._main_column = column
def GetMainColumn(self):
"""
Returns the :class:`HyperTreeList` main column (i.e. the position of the underlying
:class:`~wx.lib.agw.customtreectrl.CustomTreeCtrl`.
"""
return self._main_column
def ScrollTo(self, item):
"""
Scrolls the specified item into view.
:param `item`: an instance of :class:`TreeListItem`.
"""
if not item:
return
# ensure that the position of the item it calculated in any case
if self._dirty:
self.CalculatePositions()
# now scroll to the item
item_y = item.GetY()
xUnit, yUnit = self.GetScrollPixelsPerUnit()
start_x, start_y = self.GetViewStart()
start_y *= yUnit
client_w, client_h = self.GetClientSize ()
# Calculate size of entire tree (not necessary anymore?)
x, y = self._anchor.GetSize(0, 0, self)
x = self._owner.GetHeaderWindow().GetWidth()
y += yUnit + 2 # one more scrollbar unit + 2 pixels
x_pos = self.GetScrollPos(wx.HORIZONTAL)
## Note: The Scroll() method updates all child window positions
## while the SetScrollBars() does not (on most platforms).
if item_y < start_y+3:
# going down, item should appear at top
self.Scroll(x_pos, (item_y // yUnit) if yUnit > 0 else 0)
## self.SetScrollbars(xUnit, yUnit, (xUnit and [x//xUnit] or [0])[0], (yUnit and [y//yUnit] or [0])[0],
## x_pos, (yUnit and [item_y//yUnit] or [0])[0])
elif item_y+self.GetLineHeight(item) > start_y+client_h:
# going up, item should appear at bottom
item_y += yUnit + 2
self.Scroll(x_pos, ((item_y + self.GetLineHeight(item) - client_h) // yUnit) if yUnit > 0 else 0)
## self.SetScrollbars(xUnit, yUnit, (xUnit and [x//xUnit] or [0])[0], (yUnit and [y//yUnit] or [0])[0],
## x_pos, (yUnit and [(item_y+self.GetLineHeight(item)-client_h)//yUnit] or [0])[0])
def SetDragItem(self, item):
"""
Sets the specified item as member of a current drag and drop operation.
:param `item`: an instance of :class:`TreeListItem`.
"""
prevItem = self._dragItem
self._dragItem = item
if prevItem:
self.RefreshLine(prevItem)
if self._dragItem:
self.RefreshLine(self._dragItem)
# ----------------------------------------------------------------------------
# helpers
# ----------------------------------------------------------------------------
def AdjustMyScrollbars(self):
""" Internal method used to adjust the :class:`ScrolledWindow` scrollbars. """
if self._anchor:
xUnit, yUnit = self.GetScrollPixelsPerUnit()
if xUnit == 0:
xUnit = self.GetCharWidth()
if yUnit == 0:
yUnit = self._lineHeight
x, y = self._anchor.GetSize(0, 0, self)
y += yUnit + 2 # one more scrollbar unit + 2 pixels
x_pos = self.GetScrollPos(wx.HORIZONTAL)
y_pos = self.GetScrollPos(wx.VERTICAL)
x = self._owner.GetHeaderWindow().GetWidth() + 2
if x < self.GetClientSize().GetWidth():
x_pos = 0
self.SetScrollbars(xUnit, yUnit, x//xUnit, y//yUnit, x_pos, y_pos)
else:
self.SetScrollbars(0, 0, 0, 0)
def PaintItem(self, item, dc):
"""
Actually draws an item.
:param `item`: an instance of :class:`TreeListItem`;
:param `dc`: an instance of :class:`wx.DC`.
"""
def _paintText(text, textrect, alignment):
"""
Sub-function to draw multi-lines text label aligned correctly.
:param `text`: the item text label (possibly multiline);
:param `textrect`: the label client rectangle;
:param `alignment`: the alignment for the text label, one of ``wx.ALIGN_LEFT``,
``wx.ALIGN_RIGHT``, ``wx.ALIGN_CENTER``.
"""
txt = text.splitlines()
if alignment != wx.ALIGN_LEFT and len(txt):
yorigin = textrect.Y
for t in txt:
w, h = dc.GetTextExtent(t)
plus = textrect.Width - w
if alignment == wx.ALIGN_CENTER:
plus //= 2
dc.DrawLabel(t, wx.Rect(textrect.X + plus, yorigin, w, yorigin+h))
yorigin += h
return
dc.DrawLabel(text, textrect)
attr = item.GetAttributes()
if attr and attr.HasFont():
dc.SetFont(attr.GetFont())
elif item.IsBold():
dc.SetFont(self._boldFont)
if item.IsHyperText():
dc.SetFont(self.GetHyperTextFont())
if item.GetVisited():
dc.SetTextForeground(self.GetHyperTextVisitedColour())
else:
dc.SetTextForeground(self.GetHyperTextNewColour())
colText = wx.Colour(*dc.GetTextForeground())
if item.IsSelected():
if (wx.Platform == "__WXMAC__" and self._hasFocus):
colTextHilight = wx.SystemSettings.GetColour(wx.SYS_COLOUR_HIGHLIGHTTEXT)
else:
colTextHilight = wx.SystemSettings.GetColour(wx.SYS_COLOUR_HIGHLIGHTTEXT)
else:
attr = item.GetAttributes()
if attr and attr.HasTextColour():
colText = attr.GetTextColour()
if self._vistaselection:
colText = colTextHilight = wx.BLACK
total_w = self._owner.GetHeaderWindow().GetWidth()
total_h = self.GetLineHeight(item)
off_h = (self.HasAGWFlag(TR_ROW_LINES) and [1] or [0])[0]
off_w = (self.HasAGWFlag(TR_COLUMN_LINES) and [1] or [0])[0]
## clipper = wx.DCClipper(dc, 0, item.GetY(), total_w, total_h) # only within line
text_w, text_h, dummy = dc.GetFullMultiLineTextExtent(item.GetText(self.GetMainColumn()))
drawItemBackground = False
# determine background and show it
if attr and attr.HasBackgroundColour():
colBg = attr.GetBackgroundColour()
drawItemBackground = True
else:
colBg = self._backgroundColour
dc.SetBrush(wx.Brush(colBg))
if attr and attr.HasBorderColour():
colBorder = attr.GetBorderColour()
dc.SetPen(wx.Pen(colBorder, 1))
else:
dc.SetPen(wx.TRANSPARENT_PEN)
if self.HasAGWFlag(wx.TR_FULL_ROW_HIGHLIGHT):
itemrect = wx.Rect(0, item.GetY() + off_h, total_w-1, total_h - off_h)
if item == self._dragItem:
dc.SetBrush(self._hilightBrush)
if wx.Platform == "__WXMAC__":
dc.SetPen((item == self._dragItem) and [wx.BLACK_PEN] or [wx.TRANSPARENT_PEN])[0]
dc.SetTextForeground(colTextHilight)
elif item.IsSelected():
wnd = item.GetWindow(self._main_column)
wndx = 0
if wnd:
wndx, wndy = item.GetWindowSize(self._main_column)
itemrect = wx.Rect(0, item.GetY() + off_h, total_w-1, total_h - off_h)
if self._usegradients:
if self._gradientstyle == 0: # Horizontal
self.DrawHorizontalGradient(dc, itemrect, self._hasFocus)
else: # Vertical
self.DrawVerticalGradient(dc, itemrect, self._hasFocus)
elif self._vistaselection:
self.DrawVistaRectangle(dc, itemrect, self._hasFocus)
else:
if wx.Platform in ["__WXGTK2__", "__WXMAC__"]:
flags = wx.CONTROL_SELECTED
if self._hasFocus: flags = flags | wx.CONTROL_FOCUSED
wx.RendererNative.Get().DrawItemSelectionRect(self._owner, dc, itemrect, flags)
else:
dc.SetBrush((self._hasFocus and [self._hilightBrush] or [self._hilightUnfocusedBrush])[0])
dc.SetPen((self._hasFocus and [self._borderPen] or [wx.TRANSPARENT_PEN])[0])
dc.DrawRectangle(itemrect)
dc.SetTextForeground(colTextHilight)
# On GTK+ 2, drawing a 'normal' background is wrong for themes that
# don't allow backgrounds to be customized. Not drawing the background,
# except for custom item backgrounds, works for both kinds of theme.
elif drawItemBackground:
itemrect = wx.Rect(0, item.GetY() + off_h, total_w-1, total_h - off_h)
dc.SetBrush(wx.Brush(colBg))
dc.DrawRectangle(itemrect)
dc.SetTextForeground(colText)
else:
dc.SetTextForeground(colText)
else:
dc.SetTextForeground(colText)
text_extraH = (total_h > text_h and [(total_h - text_h)//2] or [0])[0]
img_extraH = (total_h > self._imgHeight and [(total_h-self._imgHeight)//2] or [0])[0]
x_colstart = 0
for i in range(self.GetColumnCount()):
if not self._owner.GetHeaderWindow().IsColumnShown(i):
continue
col_w = self._owner.GetHeaderWindow().GetColumnWidth(i)
dc.SetClippingRegion(x_colstart, item.GetY(), col_w, total_h) # only within column
image = _NO_IMAGE
x = image_w = wcheck = hcheck = 0
if i == self.GetMainColumn():
x = item.GetX() + _MARGIN
if self.HasButtons():
x += (self._btnWidth-self._btnWidth2) + _LINEATROOT
else:
x -= self._indent//2
if self._imageListNormal:
image = item.GetCurrentImage(i)
if item.GetType() != 0 and self._imageListCheck:
checkimage = item.GetCurrentCheckedImage()
wcheck, hcheck = self._imageListCheck.GetSize(item.GetType())
else:
wcheck, hcheck = 0, 0
else:
x = x_colstart + _MARGIN
image = item.GetImage(column=i)
if image != _NO_IMAGE:
image_w = self._imgWidth + _MARGIN
# honor text alignment
text = item.GetText(i)
alignment = self._owner.GetHeaderWindow().GetColumn(i).GetAlignment()
text_w, dummy, dummy = dc.GetFullMultiLineTextExtent(text)
if alignment == wx.ALIGN_RIGHT:
w = col_w - (image_w + wcheck + text_w + off_w + _MARGIN + 1)
x += (w > 0 and [w] or [0])[0]
elif alignment == wx.ALIGN_CENTER:
w = (col_w - (image_w + wcheck + text_w + off_w + _MARGIN))//2
x += (w > 0 and [w] or [0])[0]
else:
if image_w == 0 and wcheck:
x += 2*_MARGIN
text_x = x + image_w + wcheck + 1
if i == self.GetMainColumn():
item.SetTextX(text_x)
if not self.HasAGWFlag(wx.TR_FULL_ROW_HIGHLIGHT):
dc.SetBrush((self._hasFocus and [self._hilightBrush] or [self._hilightUnfocusedBrush])[0])
dc.SetPen((self._hasFocus and [self._borderPen] or [wx.TRANSPARENT_PEN])[0])
if i == self.GetMainColumn():
if item == self._dragItem:
if wx.Platform == "__WXMAC__": # don't draw rect outline if we already have the background colour
dc.SetPen((item == self._dragItem and [wx.BLACK_PEN] or [wx.TRANSPARENT_PEN])[0])
dc.SetTextForeground(colTextHilight)
elif item.IsSelected():
itemrect = wx.Rect(text_x-2, item.GetY() + off_h, text_w+2*_MARGIN, total_h - off_h)
if self._usegradients:
if self._gradientstyle == 0: # Horizontal
self.DrawHorizontalGradient(dc, itemrect, self._hasFocus)
else: # Vertical
self.DrawVerticalGradient(dc, itemrect, self._hasFocus)
elif self._vistaselection:
self.DrawVistaRectangle(dc, itemrect, self._hasFocus)
else:
if wx.Platform in ["__WXGTK2__", "__WXMAC__"]:
flags = wx.CONTROL_SELECTED
if self._hasFocus: flags = flags | wx.CONTROL_FOCUSED
wx.RendererNative.Get().DrawItemSelectionRect(self._owner, dc, itemrect, flags)
else:
dc.DrawRectangle(itemrect)
dc.SetTextForeground(colTextHilight)
elif item == self._current:
dc.SetPen((self._hasFocus and [wx.BLACK_PEN] or [wx.TRANSPARENT_PEN])[0])
# On GTK+ 2, drawing a 'normal' background is wrong for themes that
# don't allow backgrounds to be customized. Not drawing the background,
# except for custom item backgrounds, works for both kinds of theme.
elif drawItemBackground:
itemrect = wx.Rect(text_x-2, item.GetY() + off_h, text_w+2*_MARGIN, total_h - off_h)
dc.SetBrush(wx.Brush(colBg))
dc.DrawRectangle(itemrect)
else:
dc.SetTextForeground(colText)
else:
dc.SetTextForeground(colText)
if self.HasAGWFlag(TR_COLUMN_LINES): # vertical lines between columns
pen = wx.Pen(wx.SystemSettings.GetColour(wx.SYS_COLOUR_3DLIGHT), 1, wx.PENSTYLE_SOLID)
dc.SetPen((self.GetBackgroundColour() == wx.WHITE and [pen] or [wx.WHITE_PEN])[0])
dc.DrawLine(x_colstart+col_w-1, item.GetY(), x_colstart+col_w-1, item.GetY()+total_h)
dc.SetBackgroundMode(wx.TRANSPARENT)
if image != _NO_IMAGE:
y = item.GetY() + img_extraH
if wcheck:
x += wcheck
if item.IsEnabled():
imglist = self._imageListNormal
else:
imglist = self._grayedImageList
imglist.Draw(image, dc, x, y, wx.IMAGELIST_DRAW_TRANSPARENT)
if wcheck:
if item.IsEnabled():
imglist = self._imageListCheck
else:
imglist = self._grayedCheckList
if self.HasButtons(): # should the item show a button?
btnWidth = self._btnWidth
else:
btnWidth = -self._btnWidth
imglist.Draw(checkimage, dc,
item.GetX() + btnWidth + _MARGIN,
item.GetY() + ((total_h > hcheck) and [(total_h-hcheck)//2] or [0])[0]+1,
wx.IMAGELIST_DRAW_TRANSPARENT)
text_w, text_h, dummy = dc.GetFullMultiLineTextExtent(text)
text_extraH = (total_h > text_h and [(total_h - text_h)//2] or [0])[0]
text_y = item.GetY() + text_extraH
textrect = wx.Rect(text_x, text_y, text_w, text_h)
if self.HasAGWFlag(TR_ELLIPSIZE_LONG_ITEMS):
if i == self.GetMainColumn():
maxsize = col_w - text_x - _MARGIN
else:
maxsize = col_w - (wcheck + image_w + _MARGIN)
text = ChopText(dc, text, maxsize)
if not item.IsEnabled():
foreground = dc.GetTextForeground()
dc.SetTextForeground(self._disabledColour)
_paintText(text, textrect, alignment)
dc.SetTextForeground(foreground)
else:
if wx.Platform == "__WXMAC__" and item.IsSelected() and self._hasFocus:
dc.SetTextForeground(wx.WHITE)
_paintText(text, textrect, alignment)
wnd = item.GetWindow(i)
if wnd:
if text_w == 0:
wndx = text_x
else:
wndx = text_x + text_w + 2*_MARGIN
xa, ya = self.CalcScrolledPosition(0, item.GetY())
wndx += xa
if item.GetHeight() > item.GetWindowSize(i)[1]:
ya += (item.GetHeight() - item.GetWindowSize(i)[1])//2
if wnd.GetPosition() != (wndx, ya):
wnd.Move(wndx, ya, flags=wx.SIZE_ALLOW_MINUS_ONE)
# Force window visible after any position changes were made.
if not wnd.IsShown():
wnd.Show()
x_colstart += col_w
dc.DestroyClippingRegion()
# restore normal font
dc.SetFont(self._normalFont)
# Now y stands for the top of the item, whereas it used to stand for middle !
def PaintLevel(self, item, dc, level, y, x_maincol):
"""
Paint a level in the hierarchy of :class:`TreeListMainWindow`.
:param `item`: an instance of :class:`TreeListItem`;
:param `dc`: an instance of :class:`wx.DC`;
:param `level`: the item level in the tree hierarchy;
:param `y`: the current vertical position in the :class:`ScrolledWindow`;
:param `x_maincol`: the horizontal position of the main column.
"""
if item.IsHidden():
return y, x_maincol
# Handle hide root (only level 0)
if self.HasAGWFlag(wx.TR_HIDE_ROOT) and level == 0:
for child in item.GetChildren():
y, x_maincol = self.PaintLevel(child, dc, 1, y, x_maincol)
# end after expanding root
return y, x_maincol
# calculate position of vertical lines
x = x_maincol + _MARGIN # start of column
if self.HasAGWFlag(wx.TR_LINES_AT_ROOT):
x += _LINEATROOT # space for lines at root
if self.HasButtons():
x += (self._btnWidth-self._btnWidth2) # half button space
else:
x += (self._indent-self._indent//2)
if self.HasAGWFlag(wx.TR_HIDE_ROOT):
x += self._indent*(level-1) # indent but not level 1
else:
x += self._indent*level # indent according to level
# set position of vertical line
item.SetX(x)
item.SetY(y)
h = self.GetLineHeight(item)
y_top = y
y_mid = y_top + (h//2)
y += h
exposed_x = dc.LogicalToDeviceX(0)
exposed_y = dc.LogicalToDeviceY(y_top)
# horizontal lines between rows?
draw_row_lines = self.HasAGWFlag(TR_ROW_LINES)
if self.IsExposed(exposed_x, exposed_y, _MAX_WIDTH, h + int(draw_row_lines)):
if draw_row_lines:
total_width = self._owner.GetHeaderWindow().GetWidth()
# if the background colour is white, choose a
# contrasting colour for the lines
pen = wx.Pen(wx.SystemSettings.GetColour(wx.SYS_COLOUR_3DLIGHT), 1, wx.PENSTYLE_SOLID)
dc.SetPen((self.GetBackgroundColour() == wx.WHITE and [pen] or [wx.WHITE_PEN])[0])
dc.DrawLine(0, y_top, total_width, y_top)
dc.DrawLine(0, y_top+h, total_width, y_top+h)
# draw item
self.PaintItem(item, dc)
# restore DC objects
dc.SetBrush(wx.WHITE_BRUSH)
dc.SetPen(self._dottedPen)
# clip to the column width
clip_width = self._owner.GetHeaderWindow().GetColumn(self._main_column).GetWidth()
## clipper = wx.DCClipper(dc, x_maincol, y_top, clip_width, 10000)
if not self.HasAGWFlag(wx.TR_NO_LINES): # connection lines
# draw the horizontal line here
dc.SetPen(self._dottedPen)
x2 = x - self._indent
if x2 < (x_maincol + _MARGIN):
x2 = x_maincol + _MARGIN
x3 = x + (self._btnWidth-self._btnWidth2)
if self.HasButtons():
if item.HasPlus():
dc.DrawLine(x2, y_mid, x - self._btnWidth2, y_mid)
dc.DrawLine(x3, y_mid, x3 + _LINEATROOT, y_mid)
else:
dc.DrawLine(x2, y_mid, x3 + _LINEATROOT, y_mid)
else:
dc.DrawLine(x2, y_mid, x - self._indent//2, y_mid)
if item.HasPlus() and self.HasButtons(): # should the item show a button?
if self._imageListButtons:
# draw the image button here
image = wx.TreeItemIcon_Normal
if item.IsExpanded():
image = wx.TreeItemIcon_Expanded
if item.IsSelected():
image += wx.TreeItemIcon_Selected - wx.TreeItemIcon_Normal
xx = x - self._btnWidth2 + _MARGIN
yy = y_mid - self._btnHeight2
dc.SetClippingRegion(xx, yy, self._btnWidth, self._btnHeight)
self._imageListButtons.Draw(image, dc, xx, yy, wx.IMAGELIST_DRAW_TRANSPARENT)
dc.DestroyClippingRegion()
elif self.HasAGWFlag(wx.TR_TWIST_BUTTONS):
# draw the twisty button here
dc.SetPen(wx.BLACK_PEN)
dc.SetBrush(self._hilightBrush)
button = [wx.Point() for j in range(3)]
if item.IsExpanded():
button[0].x = x - (self._btnWidth2+1)
button[0].y = y_mid - (self._btnHeight//3)
button[1].x = x + (self._btnWidth2+1)
button[1].y = button[0].y
button[2].x = x
button[2].y = button[0].y + (self._btnHeight2+1)
else:
button[0].x = x - (self._btnWidth//3)
button[0].y = y_mid - (self._btnHeight2+1)
button[1].x = button[0].x
button[1].y = y_mid + (self._btnHeight2+1)
button[2].x = button[0].x + (self._btnWidth2+1)
button[2].y = y_mid
dc.SetClippingRegion(x_maincol + _MARGIN, y_top, clip_width, h)
dc.DrawPolygon(button)
dc.DestroyClippingRegion()
else: # if (HasAGWFlag(wxTR_HAS_BUTTONS))
rect = wx.Rect(x-self._btnWidth2, y_mid-self._btnHeight2, self._btnWidth, self._btnHeight)
flag = (item.IsExpanded() and [wx.CONTROL_EXPANDED] or [0])[0]
wx.RendererNative.GetDefault().DrawTreeItemButton(self, dc, rect, flag)
# restore DC objects
dc.SetBrush(wx.WHITE_BRUSH)
dc.SetPen(self._dottedPen)
dc.SetTextForeground(wx.BLACK)
if item.IsExpanded():
# process lower levels
if self._imgWidth > 0:
oldY = y_mid + self._imgHeight2
else:
oldY = y_mid + h//2
children = item.GetChildren()
for child in children:
y, x_maincol = self.PaintLevel(child, dc, level+1, y, x_maincol)
if not self.HasAGWFlag(wx.TR_NO_LINES) and children:
last_child = children[-1]
Y1 = last_child.GetY() + last_child.GetHeight() / 2
dc.DrawLine(x, oldY, x, Y1)
return y, x_maincol
# ----------------------------------------------------------------------------
# wxWindows callbacks
# ----------------------------------------------------------------------------
def OnEraseBackground(self, event):
"""
Handles the ``wx.EVT_ERASE_BACKGROUND`` event for :class:`TreeListMainWindow`.
:param `event`: a :class:`EraseEvent` event to be processed.
"""
# do not paint the background separately in buffered mode.
if not self._buffered:
CustomTreeCtrl.OnEraseBackground(self, event)
def OnPaint(self, event):
"""
Handles the ``wx.EVT_PAINT`` event for :class:`TreeListMainWindow`.
:param `event`: a :class:`PaintEvent` event to be processed.
"""
if self._buffered:
# paint the background
dc = wx.BufferedPaintDC(self)
rect = self.GetUpdateRegion().GetBox()
dc.SetClippingRegion(rect)
dc.SetBackground(wx.Brush(self.GetBackgroundColour()))
if self._backgroundImage:
self.TileBackground(dc)
else:
dc.Clear()
else:
dc = wx.PaintDC(self)
self.PrepareDC(dc)
if not self._anchor or self.GetColumnCount() <= 0:
return
# calculate button size
if self._imageListButtons:
self._btnWidth, self._btnHeight = self._imageListButtons.GetSize(0)
elif self.HasButtons():
self._btnWidth = _BTNWIDTH
self._btnHeight = _BTNHEIGHT
self._btnWidth2 = self._btnWidth//2
self._btnHeight2 = self._btnHeight//2
# calculate image size
if self._imageListNormal:
self._imgWidth, self._imgHeight = self._imageListNormal.GetSize(0)
self._imgWidth2 = self._imgWidth//2
self._imgHeight2 = self._imgHeight//2
if self._imageListCheck:
self._checkWidth, self._checkHeight = self._imageListCheck.GetSize(0)
self._checkWidth2 = self._checkWidth//2
self._checkHeight2 = self._checkHeight//2
# calculate indent size
if self._imageListButtons:
self._indent = max(_MININDENT, self._btnWidth + _MARGIN)
elif self.HasButtons():
self._indent = max(_MININDENT, self._btnWidth + _LINEATROOT)
# set default values
dc.SetFont(self._normalFont)
dc.SetPen(self._dottedPen)
# calculate column start and paint
x_maincol = 0
for i in range(self.GetMainColumn()):
if not self._owner.GetHeaderWindow().IsColumnShown(i):
continue
x_maincol += self._owner.GetHeaderWindow().GetColumnWidth(i)
y = 2
y, x_maincol = self.PaintLevel(self._anchor, dc, 0, y, x_maincol)
def HitTest(self, point, flags=0):
"""
Calculates which (if any) item is under the given point, returning the tree item
at this point plus extra information flags plus the item's column.
:param `point`: an instance of :class:`wx.Point`, a point to test for hits;
:param `flags`: a bitlist of the following values:
================================== =============== =================================
HitTest Flags Hex Value Description
================================== =============== =================================
``TREE_HITTEST_ABOVE`` 0x1 Above the client area
``TREE_HITTEST_BELOW`` 0x2 Below the client area
``TREE_HITTEST_NOWHERE`` 0x4 No item has been hit
``TREE_HITTEST_ONITEMBUTTON`` 0x8 On the button associated to an item
``TREE_HITTEST_ONITEMICON`` 0x10 On the icon associated to an item
``TREE_HITTEST_ONITEMINDENT`` 0x20 On the indent associated to an item
``TREE_HITTEST_ONITEMLABEL`` 0x40 On the label (string) associated to an item
``TREE_HITTEST_ONITEM`` 0x50 Anywhere on the item
``TREE_HITTEST_ONITEMRIGHT`` 0x80 On the right of the label associated to an item
``TREE_HITTEST_TOLEFT`` 0x200 On the left of the client area
``TREE_HITTEST_TORIGHT`` 0x400 On the right of the client area
``TREE_HITTEST_ONITEMUPPERPART`` 0x800 On the upper part (first half) of the item
``TREE_HITTEST_ONITEMLOWERPART`` 0x1000 On the lower part (second half) of the item
``TREE_HITTEST_ONITEMCHECKICON`` 0x2000 On the check/radio icon, if present
================================== =============== =================================
:return: the item (if any, ``None`` otherwise), the `flags` and the column are always
returned as a tuple.
"""
w, h = self.GetSize()
column = -1
if not isinstance(point, wx.Point):
point = wx.Point(*point)
if point.x < 0:
flags |= wx.TREE_HITTEST_TOLEFT
if point.x > w:
flags |= wx.TREE_HITTEST_TORIGHT
if point.y < 0:
flags |= wx.TREE_HITTEST_ABOVE
if point.y > h:
flags |= wx.TREE_HITTEST_BELOW
if flags:
return None, flags, column
if not self._anchor:
flags = wx.TREE_HITTEST_NOWHERE
column = -1
return None, flags, column
pt = wx.Point(self.CalcUnscrolledPosition(point.x, point.y))
hit, flags, column = self._anchor.HitTest(pt, self, flags, column, 0)
if not hit:
flags = wx.TREE_HITTEST_NOWHERE
column = -1
return None, flags, column
return hit, flags, column
def EditLabel(self, item, column=None):
"""
Starts editing an item label.
:param `item`: an instance of :class:`TreeListItem`;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
if not item:
return
column = (column is not None and [column] or [self._main_column])[0]
if column < 0 or column >= self.GetColumnCount():
return
self._curColumn = column
self._editItem = item
te = TreeEvent(wx.wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, self._owner.GetId())
te.SetItem(self._editItem)
te.SetInt(column)
te.SetEventObject(self._owner)
self._owner.GetEventHandler().ProcessEvent(te)
if not te.IsAllowed():
return
# ensure that the position of the item it calculated in any case
if self._dirty:
self.CalculatePositions()
if self._editCtrl != None and (item != self._editCtrl.item() or column != self._editCtrl.column()):
self._editCtrl.StopEditing()
self._editCtrl = self._owner.CreateEditCtrl(item, column)
self._editCtrl.SetFocus()
def OnEditTimer(self):
""" The timer for editing has expired. Start editing. """
self.EditLabel(self._current, self._curColumn)
def OnAcceptEdit(self, value):
"""
Called by :class:`EditTextCtrl`, to accept the changes and to send the
``EVT_TREE_END_LABEL_EDIT`` event.
:param `value`: the new value of the item label.
"""
# TODO if the validator fails this causes a crash
le = TreeEvent(wx.wxEVT_COMMAND_TREE_END_LABEL_EDIT, self._owner.GetId())
le.SetItem(self._editItem)
le.SetEventObject(self._owner)
le.SetLabel(value)
le.SetInt(self._curColumn if self._curColumn >= 0 else 0)
le._editCancelled = False
self._owner.GetEventHandler().ProcessEvent(le)
if not le.IsAllowed():
return
if self._curColumn == -1:
self._curColumn = 0
self.SetItemText(self._editItem, six.text_type(value), self._curColumn)
def OnCancelEdit(self):
"""
Called by :class:`EditCtrl`, to cancel the changes and to send the
``EVT_TREE_END_LABEL_EDIT`` event.
"""
# let owner know that the edit was cancelled
le = TreeEvent(wx.wxEVT_COMMAND_TREE_END_LABEL_EDIT, self._owner.GetId())
le.SetItem(self._editItem)
le.SetEventObject(self._owner)
le.SetLabel("")
le._editCancelled = True
self._owner.GetEventHandler().ProcessEvent(le)
def OnMouse(self, event):
"""
Handles the ``wx.EVT_MOUSE_EVENTS`` event for :class:`TreeListMainWindow`.
:param `event`: a :class:`MouseEvent` event to be processed.
"""
if not self._anchor:
return
# we process left mouse up event (enables in-place edit), right down
# (pass to the user code), left dbl click (activate item) and
# dragging/moving events for items drag-and-drop
if not (event.LeftDown() or event.LeftUp() or event.RightDown() or \
event.RightUp() or event.LeftDClick() or event.Dragging() or \
event.GetWheelRotation() != 0 or event.Moving()):
self._owner.GetEventHandler().ProcessEvent(event)
return
# set focus if window clicked
if event.LeftDown() or event.RightDown():
self._hasFocus = True
self.SetFocusIgnoringChildren()
# determine event
p = wx.Point(event.GetX(), event.GetY())
flags = 0
pt = wx.Point(self.CalcUnscrolledPosition(p.x, p.y))
item, flags, column = self._anchor.HitTest(pt, self, flags, self._curColumn, 0)
underMouse = item
underMouseChanged = underMouse != self._underMouse
if underMouse and (flags & wx.TREE_HITTEST_ONITEM) and not event.LeftIsDown() and \
not self._isDragging and (not self._editTimer or not self._editTimer.IsRunning()):
underMouse = underMouse
else:
underMouse = None
if underMouse != self._underMouse:
if self._underMouse:
# unhighlight old item
self._underMouse = None
self._underMouse = underMouse
# Determines what item we are hovering over and need a tooltip for
hoverItem = item
if (event.LeftDown() or event.LeftUp() or event.RightDown() or \
event.RightUp() or event.LeftDClick() or event.Dragging()):
if self._editCtrl != None and (item != self._editCtrl.item() or column != self._editCtrl.column()):
self._editCtrl.StopEditing()
# We do not want a tooltip if we are dragging, or if the edit timer is running
if underMouseChanged and not self._isDragging and (not self._editTimer or not self._editTimer.IsRunning()):
if hoverItem is not None:
# Ask the tree control what tooltip (if any) should be shown
hevent = TreeEvent(wx.wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP, self.GetId())
hevent.SetItem(hoverItem)
hevent.SetEventObject(self)
if self.GetEventHandler().ProcessEvent(hevent) and hevent.IsAllowed():
self.SetToolTip(hevent._label)
if hoverItem.IsHyperText() and (flags & wx.TREE_HITTEST_ONITEMLABEL) and hoverItem.IsEnabled():
self.SetCursor(wx.Cursor(wx.CURSOR_HAND))
self._isonhyperlink = True
else:
if self._isonhyperlink:
self.SetCursor(wx.Cursor(wx.CURSOR_ARROW))
self._isonhyperlink = False
# we only process dragging here
if event.Dragging():
if self._isDragging:
if not self._dragImage:
# Create the custom draw image from the icons and the text of the item
self._dragImage = DragImage(self, self._current or item)
self._dragImage.BeginDrag(wx.Point(0,0), self)
self._dragImage.Show()
self._dragImage.Move(p)
if self._countDrag == 0 and item:
self._oldItem = self._current
self._oldSelection = self._current
if item != self._dropTarget:
# unhighlight the previous drop target
if self._dropTarget:
self._dropTarget.SetHilight(False)
self.RefreshLine(self._dropTarget)
if item:
item.SetHilight(True)
self.RefreshLine(item)
self._countDrag = self._countDrag + 1
self._dropTarget = item
self.Update()
if self._countDrag >= 3 and self._oldItem is not None:
# Here I am trying to avoid ugly repainting problems... hope it works
self.RefreshLine(self._oldItem)
self._countDrag = 0
return # nothing to do, already done
if item == None:
return # we need an item to dragging
# determine drag start
if self._dragCount == 0:
self._dragTimer.Start(_DRAG_TIMER_TICKS, wx.TIMER_ONE_SHOT)
self._dragCount += 1
if self._dragCount < 3:
return # minimum drag 3 pixel
if self._dragTimer.IsRunning():
return
# we're going to drag
self._dragCount = 0
# send drag start event
command = (event.LeftIsDown() and [wx.wxEVT_COMMAND_TREE_BEGIN_DRAG] or [wx.wxEVT_COMMAND_TREE_BEGIN_RDRAG])[0]
nevent = TreeEvent(command, self._owner.GetId())
nevent.SetEventObject(self._owner)
nevent.SetItem(self._current) # the dragged item
nevent.SetPoint(p)
nevent.Veto() # dragging must be explicit allowed!
if self.GetEventHandler().ProcessEvent(nevent) and nevent.IsAllowed():
# we're going to drag this item
self._isDragging = True
if not self.HasCapture():
self.CaptureMouse()
self.RefreshSelected()
# in a single selection control, hide the selection temporarily
if not (self._agwStyle & wx.TR_MULTIPLE):
if self._oldSelection:
self._oldSelection.SetHilight(False)
self.RefreshLine(self._oldSelection)
else:
selections = self.GetSelections()
if len(selections) == 1:
self._oldSelection = selections[0]
self._oldSelection.SetHilight(False)
self.RefreshLine(self._oldSelection)
elif self._isDragging: # any other event but not event.Dragging()
# end dragging
self._dragCount = 0
self._isDragging = False
# if self.HasCapture():
# self.ReleaseMouse()
self.RefreshSelected()
# send drag end event event
nevent = TreeEvent(wx.wxEVT_COMMAND_TREE_END_DRAG, self._owner.GetId())
nevent.SetEventObject(self._owner)
nevent.SetItem(item) # the item the drag is started
nevent.SetPoint(p)
self._owner.GetEventHandler().ProcessEvent(nevent)
if self._dragImage:
self._dragImage.EndDrag()
if self._dropTarget:
self._dropTarget.SetHilight(False)
self.RefreshLine(self._dropTarget)
if self._oldSelection:
self._oldSelection.SetHilight(True)
self.RefreshLine(self._oldSelection)
self._oldSelection = None
self._isDragging = False
self._dropTarget = None
if self._dragImage:
self._dragImage = None
self.Refresh()
elif self._dragCount > 0: # just in case dragging is initiated
# end dragging
self._dragCount = 0
# we process only the messages which happen on tree items
if (item == None or not self.IsItemEnabled(item)) and not event.GetWheelRotation():
self._owner.GetEventHandler().ProcessEvent(event)
return
# remember item at shift down
if event.ShiftDown():
if not self._shiftItem:
self._shiftItem = self._current
else:
self._shiftItem = None
if event.RightUp():
self.SetFocus()
nevent = TreeEvent(wx.wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK, self._owner.GetId())
nevent.SetEventObject(self._owner)
nevent.SetItem(item) # the item clicked
nevent.SetInt(self._curColumn) # the column clicked
nevent.SetPoint(p)
self._owner.GetEventHandler().ProcessEvent(nevent)
elif event.LeftUp():
if self._lastOnSame:
if item == self._current and self._curColumn != -1 and \
self._owner.GetHeaderWindow().IsColumnEditable(self._curColumn) and \
flags & (wx.TREE_HITTEST_ONITEMLABEL | TREE_HITTEST_ONITEMCOLUMN) and \
((self._editCtrl != None and column != self._editCtrl.column()) or self._editCtrl is None):
self._editTimer.Start(_EDIT_TIMER_TICKS, wx.TIMER_ONE_SHOT)
self._lastOnSame = False
if (((flags & wx.TREE_HITTEST_ONITEMBUTTON) or (flags & wx.TREE_HITTEST_ONITEMICON)) and \
self.HasButtons() and item.HasPlus()):
# only toggle the item for a single click, double click on
# the button doesn't do anything (it toggles the item twice)
if event.LeftDown():
self.Toggle(item)
# don't select the item if the button was clicked
return
# determine the selection if not done by left down
if not self._left_down_selection:
unselect_others = not ((event.ShiftDown() or event.CmdDown()) and self.HasAGWFlag(wx.TR_MULTIPLE))
self.DoSelectItem(item, unselect_others, event.ShiftDown())
self.EnsureVisible (item)
self._current = self._key_current = item # make the new item the current item
else:
self._left_down_selection = False
elif event.LeftDown() or event.RightDown() or event.LeftDClick():
if column >= 0:
self._curColumn = column
if event.LeftDown() or event.RightDown():
self.SetFocus()
self._lastOnSame = item == self._current
if (((flags & wx.TREE_HITTEST_ONITEMBUTTON) or (flags & wx.TREE_HITTEST_ONITEMICON)) and \
self.HasButtons() and item.HasPlus()):
# only toggle the item for a single click, double click on
# the button doesn't do anything (it toggles the item twice)
if event.LeftDown():
self.Toggle(item)
# don't select the item if the button was clicked
return
if flags & TREE_HITTEST_ONITEMCHECKICON and event.LeftDown():
if item.GetType() > 0:
if self.IsItem3State(item):
checked = self.GetItem3StateValue(item)
checked = (checked+1)%3
else:
checked = not self.IsItemChecked(item)
self.CheckItem(item, checked)
return
# determine the selection if the current item is not selected
if not item.IsSelected():
unselect_others = not ((event.ShiftDown() or event.CmdDown()) and self.HasAGWFlag(wx.TR_MULTIPLE))
self.DoSelectItem(item, unselect_others, event.ShiftDown())
self.EnsureVisible(item)
self._current = self._key_current = item # make the new item the current item
self._left_down_selection = True
# For some reason, Windows isn't recognizing a left double-click,
# so we need to simulate it here. Allow 200 milliseconds for now.
if event.LeftDClick():
# double clicking should not start editing the item label
self._editTimer.Stop()
self._lastOnSame = False
# send activate event first
nevent = TreeEvent(wx.wxEVT_COMMAND_TREE_ITEM_ACTIVATED, self._owner.GetId())
nevent.SetEventObject(self._owner)
nevent.SetItem(item) # the item clicked
nevent.SetInt(self._curColumn) # the column clicked
nevent.SetPoint(p)
if not self._owner.GetEventHandler().ProcessEvent(nevent):
# if the user code didn't process the activate event,
# handle it ourselves by toggling the item when it is
# double clicked
if item.HasPlus():
self.Toggle(item)
else: # any other event skip just in case
event.Skip()
def OnScroll(self, event):
"""
Handles the ``wx.EVT_SCROLLWIN`` event for :class:`TreeListMainWindow`.
:param `event`: a :class:`ScrollEvent` event to be processed.
"""
def _updateHeaderWindow(header):
header.Refresh()
header.Update()
# Update the header window after this scroll event has fully finished
# processing, and the scoll action is complete.
if event.GetOrientation() == wx.HORIZONTAL:
wx.CallAfter(_updateHeaderWindow, self._owner.GetHeaderWindow())
event.Skip()
def CalculateSize(self, item, dc):
"""
Calculates overall position and size of an item.
:param `item`: an instance of :class:`TreeListItem`;
:param `dc`: an instance of :class:`wx.DC`.
"""
if item.IsHidden():
# Hidden items have a height of 0.
item.SetHeight(0)
return
attr = item.GetAttributes()
if attr and attr.HasFont():
dc.SetFont(attr.GetFont())
elif item.IsBold():
dc.SetFont(self._boldFont)
else:
dc.SetFont(self._normalFont)
text_w = text_h = wnd_w = wnd_h = 0
for column in range(self.GetColumnCount()):
w, h, dummy = dc.GetFullMultiLineTextExtent(item.GetText(column))
text_w, text_h = max(w, text_w), max(h, text_h)
wnd = item.GetWindow(column)
if wnd:
wnd_h = max(wnd_h, item.GetWindowSize(column)[1])
if column == self._main_column:
wnd_w = item.GetWindowSize(column)[0]
text_w, dummy, dummy = dc.GetFullMultiLineTextExtent(item.GetText(self._main_column))
text_h+=2
# restore normal font
dc.SetFont(self._normalFont)
image_w, image_h = 0, 0
image = item.GetCurrentImage()
if image != _NO_IMAGE:
if self._imageListNormal:
image_w, image_h = self._imageListNormal.GetSize(image)
image_w += 2*_MARGIN
total_h = ((image_h > text_h) and [image_h] or [text_h])[0]
checkimage = item.GetCurrentCheckedImage()
if checkimage is not None:
wcheck, hcheck = self._imageListCheck.GetSize(0)
wcheck += 2*_MARGIN
else:
wcheck = 0
if total_h < 30:
total_h += 2 # at least 2 pixels
else:
total_h += total_h//10 # otherwise 10% extra spacing
if total_h > self._lineHeight:
self._lineHeight = max(total_h, wnd_h+2)
item.SetWidth(image_w+text_w+wcheck+2+wnd_w)
item.SetHeight(max(total_h, wnd_h+2))
def CalculateLevel(self, item, dc, level, y, x_colstart):
"""
Calculates the level of an item inside the tree hierarchy.
:param `item`: an instance of :class:`TreeListItem`;
:param `dc`: an instance of :class:`wx.DC`;
:param `level`: the item level in the tree hierarchy;
:param `y`: the current vertical position inside the :class:`ScrolledWindow`;
:param `x_colstart`: the x coordinate at which the item's column starts.
"""
# calculate position of vertical lines
x = x_colstart + _MARGIN # start of column
if self.HasAGWFlag(wx.TR_LINES_AT_ROOT):
x += _LINEATROOT # space for lines at root
if self.HasButtons():
x += (self._btnWidth-self._btnWidth2) # half button space
else:
x += (self._indent-self._indent//2)
if self.HasAGWFlag(wx.TR_HIDE_ROOT):
x += self._indent * (level-1) # indent but not level 1
else:
x += self._indent * level # indent according to level
# a hidden root is not evaluated, but its children are always
if self.HasAGWFlag(wx.TR_HIDE_ROOT) and (level == 0):
# a hidden root is not evaluated, but its
# children are always calculated
children = item.GetChildren()
count = len(children)
level = level + 1
for n in range(count):
y = self.CalculateLevel(children[n], dc, level, y, x_colstart) # recurse
return y
self.CalculateSize(item, dc)
# set its position
item.SetX(x)
item.SetY(y)
# hidden items don't get a height (height=0).
if item.IsHidden():
return y
height = self.GetLineHeight(item)
for column in range(self.GetColumnCount()):
wnd = item.GetWindow(column)
if wnd:
# move this window, if necessary.
xa, ya = self.CalcScrolledPosition((0, y))
wndWidth, wndHeight = item.GetWindowSize(column)
if height > wndHeight:
ya += (height - wndHeight) // 2
wndx, wndy = wnd.GetPosition()
if wndy != ya:
wnd.Move(wndx, ya, flags=wx.SIZE_ALLOW_MINUS_ONE)
y += height
if not item.IsExpanded():
# we don't need to calculate collapsed branches
return y
children = item.GetChildren()
count = len(children)
level = level + 1
for n in range(count):
y = self.CalculateLevel(children[n], dc, level, y, x_colstart) # recurse
return y
def CalculatePositions(self):
""" Recalculates all the items positions. """
if not self._anchor:
return
dc = wx.ClientDC(self)
self.PrepareDC(dc)
dc.SetFont(self._normalFont)
dc.SetPen(self._dottedPen)
y, x_colstart = 2, 0
for i in range(self.GetMainColumn()):
if not self._owner.GetHeaderWindow().IsColumnShown(i):
continue
x_colstart += self._owner.GetHeaderWindow().GetColumnWidth(i)
self.CalculateLevel(self._anchor, dc, 0, y, x_colstart) # start recursion
def SetItemText(self, item, text, column=None):
"""
Sets the item text label.
:param `item`: an instance of :class:`TreeListItem`;
:param `text`: a string specifying the new item label;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
dc = wx.ClientDC(self)
item.SetText(column, text)
self.CalculateSize(item, dc)
self.RefreshLine(item)
def GetItemText(self, item, column=None):
"""
Returns the item text label.
:param `item`: an instance of :class:`TreeListItem`;
:param `column`: if not ``None``, an integer specifying the column index.
If it is ``None``, the main column index is used.
"""
if self.IsVirtual():
return self._owner.OnGetItemText(item, column)
else:
return item.GetText(column)
def GetItemWidth(self, item, column):
"""
Returns the item width.
:param `item`: an instance of :class:`TreeListItem`;
:param `column`: an integer specifying the column index.
"""
if not item:
return 0
# determine item width
font = self.GetItemFont(item)
if not font.IsOk():
if item.IsBold():
font = self._boldFont
elif item.IsItalic():
font = self._italicFont
elif item.IsHyperText():
font = self.GetHyperTextFont()
else:
font = self._normalFont
dc = wx.ClientDC(self)
dc.SetFont(font)
w, h, dummy = dc.GetFullMultiLineTextExtent(item.GetText(column))
w += 2*_MARGIN
# calculate width
width = w + 2*_MARGIN
if column == self.GetMainColumn():
width += _MARGIN
if self.HasAGWFlag(wx.TR_LINES_AT_ROOT):
width += _LINEATROOT
if self.HasButtons():
width += self._btnWidth + _LINEATROOT
if item.GetCurrentImage() != _NO_IMAGE:
width += self._imgWidth
# count indent level
level = 0
parent = item.GetParent()
root = self.GetRootItem()
while (parent and (not self.HasAGWFlag(wx.TR_HIDE_ROOT) or (parent != root))):
level += 1
parent = parent.GetParent()
if level:
width += level*self.GetIndent()
wnd = item.GetWindow(column)
if wnd:
width += wnd.GetSize()[0] + 2*_MARGIN
return width
def GetBestColumnWidth(self, column, parent=None):
"""
Returns the best column's width based on the items width in this column.
:param `column`: an integer specifying the column index;
:param `parent`: an instance of :class:`TreeListItem`.
"""
maxWidth, h = self.GetClientSize()
width = 0
if maxWidth < 5:
# Not shown on screen
maxWidth = 1000
# get root if on item
if not parent:
parent = self.GetRootItem()
# add root width
if not self.HasAGWFlag(wx.TR_HIDE_ROOT):
w = self.GetItemWidth(parent, column)
if width < w:
width = w
if width > maxWidth:
return maxWidth
item, cookie = self.GetFirstChild(parent)
while item:
w = self.GetItemWidth(item, column)
if width < w:
width = w
if width > maxWidth:
return maxWidth
# check the children of this item
if item.IsExpanded():
w = self.GetBestColumnWidth(column, item)
if width < w:
width = w
if width > maxWidth:
return maxWidth
# next sibling
item, cookie = self.GetNextChild(parent, cookie)
return max(10, width) # Prevent zero column width
def HideItem(self, item, hide=True):
"""
Hides/shows an item.
:param `item`: an instance of :class:`TreeListItem`;
:param `hide`: ``True`` to hide the item, ``False`` to show it.
"""
item.Hide(hide)
# Recalculate positions and hide child windows.
self.CalculatePositions()
if self._hasWindows:
self.HideWindows()
# Refresh the tree.
self.Refresh()
self.AdjustMyScrollbars()
#----------------------------------------------------------------------------
# TreeListCtrl - the multicolumn tree control
#----------------------------------------------------------------------------
_methods = ["GetIndent", "SetIndent", "GetSpacing", "SetSpacing", "GetImageList", "GetStateImageList",
"GetButtonsImageList", "AssignImageList", "AssignStateImageList", "AssignButtonsImageList",
"SetImageList", "SetButtonsImageList", "SetStateImageList",
"GetItemText", "GetItemImage", "GetItemPyData", "GetPyData", "GetItemTextColour",
"GetItemBackgroundColour", "GetItemFont", "SetItemText", "SetItemImage", "SetItemPyData", "SetPyData",
"SetItemHasChildren", "SetItemBackgroundColour", "SetItemFont", "IsItemVisible", "HasChildren",
"IsExpanded", "IsSelected", "IsBold", "GetChildrenCount", "GetRootItem", "GetSelection", "GetSelections",
"GetItemParent", "GetFirstChild", "GetNextChild", "GetPrevChild", "GetLastChild", "GetNextSibling",
"GetPrevSibling", "GetNext", "GetFirstExpandedItem", "GetNextExpanded", "GetPrevExpanded",
"GetFirstVisibleItem", "GetNextVisible", "GetPrevVisible", "AddRoot", "PrependItem", "InsertItem",
"AppendItem", "Delete", "DeleteChildren", "DeleteRoot", "Expand", "ExpandAll", "ExpandAllChildren",
"Collapse", "CollapseAndReset", "Toggle", "Unselect", "UnselectAll", "SelectItem", "SelectAll",
"EnsureVisible", "ScrollTo", "HitTest", "GetBoundingRect", "EditLabel", "FindItem", "SelectAllChildren",
"SetDragItem", "GetColumnCount", "SetMainColumn", "GetHyperTextFont", "SetHyperTextFont",
"SetHyperTextVisitedColour", "GetHyperTextVisitedColour", "SetHyperTextNewColour", "GetHyperTextNewColour",
"SetItemVisited", "GetItemVisited", "SetHilightFocusColour", "GetHilightFocusColour", "SetHilightNonFocusColour",
"GetHilightNonFocusColour", "SetFirstGradientColour", "GetFirstGradientColour", "SetSecondGradientColour",
"GetSecondGradientColour", "EnableSelectionGradient", "SetGradientStyle", "GetGradientStyle",
"EnableSelectionVista", "SetBorderPen", "GetBorderPen", "SetConnectionPen", "GetConnectionPen",
"SetBackgroundImage", "GetBackgroundImage", "SetImageListCheck", "GetImageListCheck", "EnableChildren",
"EnableItem", "IsItemEnabled", "GetDisabledColour", "SetDisabledColour", "IsItemChecked",
"UnCheckRadioParent", "CheckItem", "CheckItem2", "AutoToggleChild", "AutoCheckChild", "AutoCheckParent",
"CheckChilds", "CheckSameLevel", "GetItemWindowEnabled", "SetItemWindowEnabled", "GetItemType",
"IsDescendantOf", "SetItemHyperText", "IsItemHyperText", "SetItemBold", "SetItemDropHighlight", "SetItemItalic",
"GetEditControl", "ShouldInheritColours", "GetItemWindow", "SetItemWindow", "DeleteItemWindow", "SetItemTextColour",
"HideItem", "DeleteAllItems", "ItemHasChildren", "ToggleItemSelection", "SetItemType", "GetCurrentItem",
"SetItem3State", "SetItem3StateValue", "GetItem3StateValue", "IsItem3State", "GetPrev",
"GetNextShown", "GetPrevShown"]
class HyperTreeList(wx.Control):
"""
:class:`HyperTreeList` is a generic widget that combines the multicolumn
features of a :class:`wx.ListCtrl` with the hierarchical features of a
:class:`wx.TreeCtrl` This class does not rely on native native controls,
as it is a full owner-drawn tree-list control.
It manages two widgets internally:
:class:`TreeListHeaderWindow`
:class:`TreeListMainWindow` based off :class:`CustomTreeCtrl`
These widgets can be obtained by the :meth:`~HyperTreeList.GetHeaderWindow`
and :meth:`~HyperTreeList.GetMainWindow` methods respectively althought this
shouldn't be needed in normal usage.
Please note that although the methods are not explicitly defined or
documented here, most of the API in :class:`TreeListMainWindow` and
:class:`CustomTreeCtrl` can be called directly from :class:`HyperTreeList`
via monkey-patched delegates.
"""
def __init__(self, parent, id=wx.ID_ANY, pos=wx.DefaultPosition, size=wx.DefaultSize,
style=0, agwStyle=wx.TR_DEFAULT_STYLE, validator=wx.DefaultValidator,
name="HyperTreeList"):
"""
Default class constructor.
:param `parent`: parent window. Must not be ``None``;
:param `id`: window identifier. A value of -1 indicates a default value;
:param `pos`: the control position. A value of (-1, -1) indicates a default position,
chosen by either the windowing system or wxPython, depending on platform;
:param `size`: the control size. A value of (-1, -1) indicates a default size,
chosen by either the windowing system or wxPython, depending on platform;
:param `style`: the underlying :class:`wx.Control` style;
:param `agwStyle`: the AGW-specific :class:`HyperTreeList` window style. This can be a combination
of the following bits:
============================== =========== ==================================================
Window Styles Hex Value Description
============================== =========== ==================================================
``TR_NO_BUTTONS`` 0x0 For convenience to document that no buttons are to be drawn.
``TR_SINGLE`` 0x0 For convenience to document that only one item may be selected at a time. Selecting another item causes the current selection, if any, to be deselected. This is the default.
``TR_HAS_BUTTONS`` 0x1 Use this style to show + and - buttons to the left of parent items.
``TR_NO_LINES`` 0x4 Use this style to hide vertical level connectors.
``TR_LINES_AT_ROOT`` 0x8 Use this style to show lines between root nodes. Only applicable if ``TR_HIDE_ROOT`` is set and ``TR_NO_LINES`` is not set.
``TR_DEFAULT_STYLE`` 0x9 The set of flags that are closest to the defaults for the native control for a particular toolkit.
``TR_TWIST_BUTTONS`` 0x10 Use old Mac-twist style buttons.
``TR_MULTIPLE`` 0x20 Use this style to allow a range of items to be selected. If a second range is selected, the current range, if any, is deselected.
``TR_EXTENDED`` 0x40 Use this style to allow disjoint items to be selected. (Only partially implemented; may not work in all cases).
``TR_HAS_VARIABLE_ROW_HEIGHT`` 0x80 Use this style to cause row heights to be just big enough to fit the content. If not set, all rows use the largest row height. The default is that this flag is unset.
``TR_EDIT_LABELS`` 0x200 Use this style if you wish the user to be able to edit labels in the tree control.
``TR_ROW_LINES`` 0x400 Use this style to draw a contrasting border between displayed rows.
``TR_HIDE_ROOT`` 0x800 Use this style to suppress the display of the root node, effectively causing the first-level nodes to appear as a series of root nodes.
``TR_COLUMN_LINES`` 0x1000 Use this style to draw a contrasting border between displayed columns.
``TR_FULL_ROW_HIGHLIGHT`` 0x2000 Use this style to have the background colour and the selection highlight extend over the entire horizontal row of the tree control window.
``TR_AUTO_CHECK_CHILD`` 0x4000 Only meaningful for checkbox-type items: when a parent item is checked/unchecked its children are checked/unchecked as well.
``TR_AUTO_TOGGLE_CHILD`` 0x8000 Only meaningful for checkbox-type items: when a parent item is checked/unchecked its children are toggled accordingly.
``TR_AUTO_CHECK_PARENT`` 0x10000 Only meaningful for checkbox-type items: when a child item is checked/unchecked its parent item is checked/unchecked as well.
``TR_ALIGN_WINDOWS`` 0x20000 Flag used to align windows (in items with windows) at the same horizontal position.
``TR_NO_HEADER`` 0x40000 Use this style to hide the columns header.
``TR_ELLIPSIZE_LONG_ITEMS`` 0x80000 Flag used to ellipsize long items when the horizontal space for :class:`~wx.lib.agw.customtreectrl.CustomTreeCtrl` is low.
``TR_VIRTUAL`` 0x100000 :class:`HyperTreeList` will have virtual behaviour.
============================== =========== ==================================================
:param `validator`: window validator;
:param `name`: window name.
"""
wx.Control.__init__(self, parent, id, pos, size, style, validator, name)
self._header_win = None
self._main_win = None
self._headerHeight = 0
self._attr_set = False
main_style = style & ~(wx.SIMPLE_BORDER|wx.SUNKEN_BORDER|wx.DOUBLE_BORDER|
wx.RAISED_BORDER|wx.STATIC_BORDER)
self._agwStyle = agwStyle
self._main_win = TreeListMainWindow(self, -1, wx.Point(0, 0), size, main_style, agwStyle, validator)
self._main_win._buffered = False
self._header_win = TreeListHeaderWindow(self, -1, self._main_win, wx.Point(0, 0),
wx.DefaultSize, wx.TAB_TRAVERSAL)
self._header_win._buffered = False
self.CalculateAndSetHeaderHeight()
self.Bind(wx.EVT_SIZE, self.OnSize)
self.SetBuffered(IsBufferingSupported())
self._main_win.SetAGWWindowStyleFlag(agwStyle)
def SetBuffered(self, buffered):
"""
Sets/unsets the double buffering for the header and the main window.
:param `buffered`: ``True`` to use double-buffering, ``False`` otherwise.
:note: Currently we are using double-buffering only on Windows XP.
"""
self._main_win.SetBuffered(buffered)
self._header_win.SetBuffered(buffered)
def CalculateAndSetHeaderHeight(self):
""" Calculates the best header height and stores it. """
if self._header_win:
h = wx.RendererNative.Get().GetHeaderButtonHeight(self._header_win)
# only update if changed
if h != self._headerHeight:
self._headerHeight = h
self.DoHeaderLayout()
def DoHeaderLayout(self):
""" Layouts the header control. """
w, h = self.GetClientSize()
has_header = self._agwStyle & TR_NO_HEADER == 0
if self._header_win and has_header:
self._header_win.SetSize(0, 0, w, self._headerHeight)
self._header_win.Refresh()
else:
self._header_win.SetSize(0, 0, 0, 0)
if self._main_win and has_header:
self._main_win.SetSize(0, self._headerHeight + 1, w, h - self._headerHeight - 1)
else:
self._main_win.SetSize(0, 0, w, h)
def OnSize(self, event):
"""
Handles the ``wx.EVT_SIZE`` event for :class:`HyperTreeList`.
:param `event`: a :class:`wx.SizeEvent` event to be processed.
"""
self.DoHeaderLayout()
def SetFont(self, font):
"""
Sets the default font for the header window and the main window.
:param `font`: a valid :class:`wx.Font` object.
"""
if self._header_win:
self._header_win.SetFont(font)
self.CalculateAndSetHeaderHeight()
self._header_win.Refresh()
if self._main_win:
return self._main_win.SetFont(font)
else:
return False
def SetHeaderFont(self, font):
"""
Sets the default font for the header window..
:param `font`: a valid :class:`wx.Font` object.
"""
if not self._header_win:
return
for column in range(self.GetColumnCount()):
self._header_win.SetColumn(column, self.GetColumn(column).SetFont(font))
self._header_win.Refresh()
def SetHeaderCustomRenderer(self, renderer=None):
"""
Associate a custom renderer with the header - all columns will use it
:param `renderer`: a class able to correctly render header buttons
:note: the renderer class **must** implement the method `DrawHeaderButton`
"""
self._header_win.SetCustomRenderer(renderer)
def SetAGWWindowStyleFlag(self, agwStyle):
"""
Sets the window style for :class:`HyperTreeList`.
:param `agwStyle`: can be a combination of the following bits:
============================== =========== ==================================================
Window Styles Hex Value Description
============================== =========== ==================================================
``TR_NO_BUTTONS`` 0x0 For convenience to document that no buttons are to be drawn.
``TR_SINGLE`` 0x0 For convenience to document that only one item may be selected at a time. Selecting another item causes the current selection, if any, to be deselected. This is the default.
``TR_HAS_BUTTONS`` 0x1 Use this style to show + and - buttons to the left of parent items.
``TR_NO_LINES`` 0x4 Use this style to hide vertical level connectors.
``TR_LINES_AT_ROOT`` 0x8 Use this style to show lines between root nodes. Only applicable if ``TR_HIDE_ROOT`` is set and ``TR_NO_LINES`` is not set.
``TR_DEFAULT_STYLE`` 0x9 The set of flags that are closest to the defaults for the native control for a particular toolkit.
``TR_TWIST_BUTTONS`` 0x10 Use old Mac-twist style buttons.
``TR_MULTIPLE`` 0x20 Use this style to allow a range of items to be selected. If a second range is selected, the current range, if any, is deselected.
``TR_EXTENDED`` 0x40 Use this style to allow disjoint items to be selected. (Only partially implemented; may not work in all cases).
``TR_HAS_VARIABLE_ROW_HEIGHT`` 0x80 Use this style to cause row heights to be just big enough to fit the content. If not set, all rows use the largest row height. The default is that this flag is unset.
``TR_EDIT_LABELS`` 0x200 Use this style if you wish the user to be able to edit labels in the tree control.
``TR_ROW_LINES`` 0x400 Use this style to draw a contrasting border between displayed rows.
``TR_HIDE_ROOT`` 0x800 Use this style to suppress the display of the root node, effectively causing the first-level nodes to appear as a series of root nodes.
``TR_COLUMN_LINES`` 0x1000 Use this style to draw a contrasting border between displayed columns.
``TR_FULL_ROW_HIGHLIGHT`` 0x2000 Use this style to have the background colour and the selection highlight extend over the entire horizontal row of the tree control window.
``TR_AUTO_CHECK_CHILD`` 0x4000 Only meaningful for checkbox-type items: when a parent item is checked/unchecked its children are checked/unchecked as well.
``TR_AUTO_TOGGLE_CHILD`` 0x8000 Only meaningful for checkbox-type items: when a parent item is checked/unchecked its children are toggled accordingly.
``TR_AUTO_CHECK_PARENT`` 0x10000 Only meaningful for checkbox-type items: when a child item is checked/unchecked its parent item is checked/unchecked as well.
``TR_ALIGN_WINDOWS`` 0x20000 Flag used to align windows (in items with windows) at the same horizontal position.
``TR_NO_HEADER`` 0x40000 Use this style to hide the columns header.
``TR_ELLIPSIZE_LONG_ITEMS`` 0x80000 Flag used to ellipsize long items when the horizontal space for :class:`~wx.lib.agw.customtreectrl.CustomTreeCtrl` is low.
``TR_VIRTUAL`` 0x100000 :class:`HyperTreeList` will have virtual behaviour.
============================== =========== ==================================================
:note: Please note that some styles cannot be changed after the window creation
and that `Refresh()` might need to be be called after changing the others for
the change to take place immediately.
"""
if self._main_win:
self._main_win.SetAGWWindowStyleFlag(agwStyle)
tmp = self._agwStyle
self._agwStyle = agwStyle
if abs(agwStyle - tmp) & TR_NO_HEADER:
self.DoHeaderLayout()
def GetAGWWindowStyleFlag(self):
"""
Returns the :class:`HyperTreeList` window style flag.
:see: :meth:`~HyperTreeList.SetAGWWindowStyleFlag` for a list of valid window styles.
"""
agwStyle = self._agwStyle
if self._main_win:
agwStyle |= self._main_win.GetAGWWindowStyleFlag()
return agwStyle
def HasAGWFlag(self, flag):
"""
Returns whether a flag is present in the :class:`HyperTreeList` style.
:param `flag`: one of the possible :class:`HyperTreeList` window styles.
:see: :meth:`~HyperTreeList.SetAGWWindowStyleFlag` for a list of possible window style flags.
"""
agwStyle = self.GetAGWWindowStyleFlag()
res = bool(agwStyle & flag)
return res
def SetBackgroundColour(self, colour):
"""
Changes the background colour of :class:`HyperTreeList`.
:param `colour`: the colour to be used as the background colour, pass
:class:`NullColour` to reset to the default colour.
:note: The background colour is usually painted by the default :class:`EraseEvent`
event handler function under Windows and automatically under GTK.
:note: Setting the background colour does not cause an immediate refresh, so
you may wish to call :meth:`wx.Window.ClearBackground` or :meth:`wx.Window.Refresh` after
calling this function.
:note: Overridden from :class:`wx.Control`.
"""
if not self._main_win:
return False
return self._main_win.SetBackgroundColour(colour)
def SetForegroundColour(self, colour):
"""
Changes the foreground colour of :class:`HyperTreeList`.
:param `colour`: the colour to be used as the foreground colour, pass
:class:`NullColour` to reset to the default colour.
:note: Overridden from :class:`wx.Control`.
"""
if not self._main_win:
return False
return self._main_win.SetForegroundColour(colour)
def SetColumnWidth(self, column, width):
"""
Sets the column width, in pixels.
:param `column`: an integer specifying the column index;
:param `width`: the new column width, in pixels.
"""
if width == wx.LIST_AUTOSIZE_USEHEADER:
font = self._header_win.GetFont()
dc = wx.ClientDC(self._header_win)
width, dummy, dummy = dc.GetFullMultiLineTextExtent(self._header_win.GetColumnText(column))
# Search TreeListHeaderWindow.OnPaint to understand this:
width += 2*_EXTRA_WIDTH + _MARGIN
elif width == wx.LIST_AUTOSIZE:
width = self._main_win.GetBestColumnWidth(column)
elif width == LIST_AUTOSIZE_CONTENT_OR_HEADER:
width1 = self._main_win.GetBestColumnWidth(column)
font = self._header_win.GetFont()
dc = wx.ClientDC(self._header_win)
width2, dummy, dummy = dc.GetMultiLineTextExtent(self._header_win.GetColumnText(column))
width2 += 2*_EXTRA_WIDTH + _MARGIN
width = max(width1, width2)
self._header_win.SetColumnWidth(column, width)
self._header_win.Refresh()
def GetColumnWidth(self, column):
"""
Returns the column width, in pixels.
:param `column`: an integer specifying the column index.
"""
return self._header_win.GetColumnWidth(column)
def SetColumnText(self, column, text):
"""
Sets the column text label.
:param `column`: an integer specifying the column index;
:param `text`: the new column label.
"""
self._header_win.SetColumnText(column, text)
self._header_win.Refresh()
def GetColumnText(self, column):
"""
Returns the column text label.
:param `column`: an integer specifying the column index.
"""
return self._header_win.GetColumnText(column)
def AddColumn(self, text, width=_DEFAULT_COL_WIDTH, flag=wx.ALIGN_LEFT,
image=-1, shown=True, colour=None, edit=False):
"""
Appends a column to the :class:`HyperTreeList`.
:param `text`: the column text label;
:param `width`: the column width in pixels;
:param `flag`: the column alignment flag, one of ``wx.ALIGN_LEFT``,
``wx.ALIGN_RIGHT``, ``wx.ALIGN_CENTER``;
:param `image`: an index within the normal image list assigned to
:class:`HyperTreeList` specifying the image to use for the column;
:param `shown`: ``True`` to show the column, ``False`` to hide it;
:param `colour`: a valid :class:`wx.Colour`, representing the text foreground colour
for the column;
:param `edit`: ``True`` to set the column as editable, ``False`` otherwise.
"""
self._header_win.AddColumn(text, width, flag, image, shown, colour, edit)
self.DoHeaderLayout()
def AddColumnInfo(self, colInfo):
"""
Appends a column to the :class:`HyperTreeList`.
:param `colInfo`: an instance of :class:`TreeListColumnInfo`.
"""
self._header_win.AddColumnInfo(colInfo)
self.DoHeaderLayout()
def InsertColumnInfo(self, before, colInfo):
"""
Inserts a column to the :class:`HyperTreeList` at the position specified
by `before`.
:param `before`: the index at which we wish to insert the new column;
:param `colInfo`: an instance of :class:`TreeListColumnInfo`.
"""
self._header_win.InsertColumnInfo(before, colInfo)
self._header_win.Refresh()
def InsertColumn(self, before, text, width=_DEFAULT_COL_WIDTH,
flag=wx.ALIGN_LEFT, image=-1, shown=True, colour=None,
edit=False):
"""
Inserts a column to the :class:`HyperTreeList` at the position specified
by `before`.
:param `before`: the index at which we wish to insert the new column;
:param `text`: the column text label;
:param `width`: the column width in pixels;
:param `flag`: the column alignment flag, one of ``wx.ALIGN_LEFT``,
``wx.ALIGN_RIGHT``, ``wx.ALIGN_CENTER``;
:param `image`: an index within the normal image list assigned to
:class:`HyperTreeList` specifying the image to use for the column;
:param `shown`: ``True`` to show the column, ``False`` to hide it;
:param `colour`: a valid :class:`wx.Colour`, representing the text foreground colour
for the column;
:param `edit`: ``True`` to set the column as editable, ``False`` otherwise.
"""
self._header_win.InsertColumn(before, text, width, flag, image,
shown, colour, edit)
self._header_win.Refresh()
def RemoveColumn(self, column):
"""
Removes a column from the :class:`HyperTreeList`.
:param `column`: an integer specifying the column index.
"""
self._header_win.RemoveColumn(column)
self._header_win.Refresh()
def SetColumn(self, column, colInfo):
"""
Sets a column using an instance of :class:`TreeListColumnInfo`.
:param `column`: an integer specifying the column index;
:param `info`: an instance of :class:`TreeListColumnInfo`.
"""
self._header_win.SetColumn(column, colInfo)
self._header_win.Refresh()
def GetColumn(self, column):
"""
Returns an instance of :class:`TreeListColumnInfo` containing column information.
:param `column`: an integer specifying the column index.
"""
return self._header_win.GetColumn(column)
def SetColumnImage(self, column, image):
"""
Sets an image on the specified column.
:param `column`: an integer specifying the column index.
:param `image`: an index within the normal image list assigned to
:class:`HyperTreeList` specifying the image to use for the column.
"""
self._header_win.SetColumn(column, self.GetColumn(column).SetImage(image))
self._header_win.Refresh()
def GetColumnImage(self, column):
"""
Returns the image assigned to the specified column.
:param `column`: an integer specifying the column index.
"""
return self._header_win.GetColumn(column).GetImage()
def SetColumnEditable(self, column, edit):
"""
Sets the column as editable or non-editable.
:param `column`: an integer specifying the column index;
:param `edit`: ``True`` if the column should be editable, ``False`` otherwise.
"""
self._header_win.SetColumn(column, self.GetColumn(column).SetEditable(edit))
def SetColumnShown(self, column, shown):
"""
Sets the column as shown or hidden.
:param `column`: an integer specifying the column index;
:param `shown`: ``True`` if the column should be shown, ``False`` if it
should be hidden.
"""
if self._main_win.GetMainColumn() == column:
shown = True # Main column cannot be hidden
self.SetColumn(column, self.GetColumn(column).SetShown(shown))
def IsColumnEditable(self, column):
"""
Returns ``True`` if the column is editable, ``False`` otherwise.
:param `column`: an integer specifying the column index.
"""
return self._header_win.GetColumn(column).IsEditable()
def IsColumnShown(self, column):
"""
Returns ``True`` if the column is shown, ``False`` otherwise.
:param `column`: an integer specifying the column index.
"""
return self._header_win.GetColumn(column).IsShown()
def SetColumnAlignment(self, column, flag):
"""
Sets the column text alignment.
:param `column`: an integer specifying the column index;
:param `flag`: the alignment flag, one of ``wx.ALIGN_LEFT``, ``wx.ALIGN_RIGHT``,
``wx.ALIGN_CENTER``.
"""
self._header_win.SetColumn(column, self.GetColumn(column).SetAlignment(flag))
self._header_win.Refresh()
def GetColumnAlignment(self, column):
"""
Returns the column text alignment.
:param `column`: an integer specifying the column index.
"""
return self._header_win.GetColumn(column).GetAlignment()
def SetColumnColour(self, column, colour):
"""
Sets the column text colour.
:param `column`: an integer specifying the column index;
:param `colour`: a valid :class:`wx.Colour` object.
"""
self._header_win.SetColumn(column, self.GetColumn(column).SetColour(colour))
self._header_win.Refresh()
def GetColumnColour(self, column):
"""
Returns the column text colour.
:param `column`: an integer specifying the column index.
"""
return self._header_win.GetColumn(column).GetColour()
def SetColumnFont(self, column, font):
"""
Sets the column text font.
:param `column`: an integer specifying the column index;
:param `font`: a valid :class:`wx.Font` object.
"""
self._header_win.SetColumn(column, self.GetColumn(column).SetFont(font))
self._header_win.Refresh()
def GetColumnFont(self, column):
"""
Returns the column text font.
:param `column`: an integer specifying the column index.
"""
return self._header_win.GetColumn(column).GetFont()
def Refresh(self, erase=True, rect=None):
"""
Causes this window, and all of its children recursively (except under wxGTK1
where this is not implemented), to be repainted.
:param `erase`: If ``True``, the background will be erased;
:param `rect`: If not ``None``, only the given rectangle will be treated as damaged.
:note: Note that repainting doesn't happen immediately but only during the next
event loop iteration, if you need to update the window immediately you should
use `Update` instead.
:note: Overridden from :class:`wx.Control`.
"""
self._main_win.Refresh(erase, rect)
self._header_win.Refresh(erase, rect)
def SetFocus(self):
""" This sets the window to receive keyboard input. """
self._main_win.SetFocus()
def GetHeaderWindow(self):
""" Returns the header window, an instance of :class:`TreeListHeaderWindow`. """
return self._header_win
def GetMainWindow(self):
""" Returns the main window, an instance of :class:`TreeListMainWindow`. """
return self._main_win
def DoGetBestSize(self):
"""
Gets the size which best suits the window: for a control, it would be the
minimal size which doesn't truncate the control, for a panel - the same size
as it would have after a call to `Fit()`.
:note: Overridden from :class:`wx.Control`.
"""
# something is better than nothing...
return wx.Size(200, 200) # but it should be specified values! FIXME
def OnGetItemText(self, item, column):
"""
This function **must** be overloaded in the derived class for a control
with ``TR_VIRTUAL`` style. It should return the string containing the
text of the given column for the specified item.
:param `item`: an instance of :class:`TreeListItem`;
:param `column`: an integer specifying the column index.
"""
return ""
def SortChildren(self, item):
"""
Sorts the children of the given item using :meth:`~HyperTreeList.OnCompareItems` method of :class:`HyperTreeList`.
You should override that method to change the sort order (the default is ascending
case-sensitive alphabetical order).
:param `item`: an instance of :class:`TreeListItem`;
"""
if not self._attr_set:
setattr(self._main_win, "OnCompareItems", self.OnCompareItems)
self._attr_set = True
self._main_win.SortChildren(item)
def OnCompareItems(self, item1, item2):
"""
Returns whether 2 items have the same text.
Override this function in the derived class to change the sort order of the items
in the :class:`HyperTreeList`. The function should return a negative, zero or positive
value if the first item is less than, equal to or greater than the second one.
:param `item1`: an instance of :class:`TreeListItem`;
:param `item2`: another instance of :class:`TreeListItem`.
:note: The base class version compares items alphabetically.
"""
# do the comparison here, and not delegate to self._main_win, in order
# to let the user override it
return self.GetItemText(item1) == self.GetItemText(item2)
def CreateEditCtrl(self, item, column):
"""
Create an edit control for editing a label of an item. By default, this
returns a text control.
Override this function in the derived class to return a different type
of control.
:param `item`: an instance of :class:`TreeListItem`;
:param `column`: an integer specifying the column index.
"""
return EditTextCtrl(self.GetMainWindow(), -1, item, column,
self.GetMainWindow(), item.GetText(column),
style=self.GetTextCtrlStyle(column))
def GetTextCtrlStyle(self, column):
"""
Return the style to use for the text control that is used to edit
labels of items.
Override this function in the derived class to support a different
style, e.g. ``wx.TE_MULTILINE``.
:param `column`: an integer specifying the column index.
"""
return self.GetTextCtrlAlignmentStyle(column) | wx.TE_PROCESS_ENTER
def GetTextCtrlAlignmentStyle(self, column):
"""
Return the alignment style to use for the text control that is used
to edit labels of items. The alignment style is derived from the
column alignment.
:param `column`: an integer specifying the column index.
"""
header_win = self.GetHeaderWindow()
alignment = header_win.GetColumnAlignment(column)
return {wx.ALIGN_LEFT: wx.TE_LEFT,
wx.ALIGN_RIGHT: wx.TE_RIGHT,
wx.ALIGN_CENTER: wx.TE_CENTER}[alignment]
def GetClassDefaultAttributes(self):
"""
Returns the default font and colours which are used by the control. This is
useful if you want to use the same font or colour in your own control as in
a standard control -- which is a much better idea than hard coding specific
colours or fonts which might look completely out of place on the users system,
especially if it uses themes.
This static method is "overridden'' in many derived classes and so calling,
for example, :meth:`Button.GetClassDefaultAttributes` () will typically return the
values appropriate for a button which will be normally different from those
returned by, say, :meth:`ListCtrl.GetClassDefaultAttributes` ().
:note: The :class:`VisualAttributes` structure has at least the fields `font`,
`colFg` and `colBg`. All of them may be invalid if it was not possible to
determine the default control appearance or, especially for the background
colour, if the field doesn't make sense as is the case for `colBg` for the
controls with themed background.
"""
attr = wx.VisualAttributes()
attr.colFg = wx.SystemSettings.GetColour(wx.SYS_COLOUR_WINDOWTEXT)
attr.colBg = wx.SystemSettings.GetColour(wx.SYS_COLOUR_LISTBOX)
attr.font = wx.SystemSettings.GetFont(wx.SYS_DEFAULT_GUI_FONT)
return attr
GetClassDefaultAttributes = classmethod(GetClassDefaultAttributes)
def create_delegator_for(method):
"""
Creates a method that forwards calls to `self._main_win` (an instance of :class:`TreeListMainWindow`).
:param `method`: one method inside the :class:`TreeListMainWindow` local scope.
"""
def delegate(self, *args, **kwargs):
return getattr(self._main_win, method)(*args, **kwargs)
return delegate
# Create methods that delegate to self._main_win. This approach allows for
# overriding these methods in possible subclasses of HyperTreeList
for method in _methods:
setattr(HyperTreeList, method, create_delegator_for(method))
if __name__ == '__main__':
import wx
class MyFrame(wx.Frame):
def __init__(self, parent):
wx.Frame.__init__(self, parent, -1, "HyperTreeList Demo")
tree_list = HyperTreeList(self)
tree_list.AddColumn("First column")
root = tree_list.AddRoot("Root", ct_type=1)
parent = tree_list.AppendItem(root, "First child", ct_type=1)
child = tree_list.AppendItem(parent, "First Grandchild", ct_type=1)
tree_list.AppendItem(root, "Second child", ct_type=1)
# our normal wxApp-derived class, as usual
app = wx.App(0)
locale = wx.Locale(wx.LANGUAGE_DEFAULT)
frame = MyFrame(None)
app.SetTopWindow(frame)
frame.Show()
app.MainLoop()
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