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Add the FloatCanvas demo modules
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/Phoenix/trunk@73860 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn
228
samples/floatcanvas/TextBox2.py
Executable file
228
samples/floatcanvas/TextBox2.py
Executable file
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#!/usr/bin/env python
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"""
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A test and demo of the ScaledTextbox.
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It also shows how one can use the Mouse to interact and change objects on a Canvas.
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this really needs to be re-done with GUI-Modes.
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"""
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import wx
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## import the installed version
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from wx.lib.floatcanvas import NavCanvas, FloatCanvas
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## import a local version
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#import sys
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#sys.path.append("../")
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#from floatcanvas import NavCanvas, FloatCanvas, Resources
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import numpy as N
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LongString = (
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"""This is a long string. It is a bunch of text. I am using it to test how the nifty wrapping text box works when you want to re-size.
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This is another paragraph. I am trying to make it long enough to wrap a reasonable amount. Let's see how it works.
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This is a way to start a paragraph with indenting
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"""
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)
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##LongString = (
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##""" This is a not so long string
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##Another line""")
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class DrawFrame(wx.Frame):
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"""
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A frame used for the FloatCanvas Demo
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"""
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def __init__(self,parent, id,title,position,size):
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wx.Frame.__init__(self,parent, id,title,position, size)
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self.CreateStatusBar()
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# Add the Canvas
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Canvas = NavCanvas.NavCanvas(self,-1,(500,500),
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ProjectionFun = None,
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Debug = 0,
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BackgroundColor = "DARK SLATE BLUE",
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).Canvas
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self.Canvas = Canvas
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FloatCanvas.EVT_MOTION(self.Canvas, self.OnMove )
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FloatCanvas.EVT_LEFT_UP(self.Canvas, self.OnLeftUp )
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FloatCanvas.EVT_LEFT_DOWN(self.Canvas, self.OnLeftDown)
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Point = N.array((0,0), N.float)
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Canvas.AddCircle(Point,
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Diameter=40,
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FillColor="Red",
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LineStyle=None,
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)
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Width = 300
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self.Box = Canvas.AddScaledTextBox(LongString,
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Point,
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10,
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Color = "Black",
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BackgroundColor = 'White',
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LineStyle = "Solid",
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LineWidth = 2,
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Width = Width,
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PadSize = 10.0,
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Family = wx.ROMAN,
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#Family = wx.TELETYPE,
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Style = wx.NORMAL,
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Weight = wx.NORMAL,
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Underlined = False,
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Position = 'tl',
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LineSpacing = 0.8,
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Alignment = "left",
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#Alignment = "center",
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#Alignment = "right",
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InForeground = False)
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self.Handle1 = Canvas.AddBitmap(Resources.getMoveCursorBitmap(), Point, Position='cc')
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self.Handle2a = Canvas.AddBitmap(Resources.getMoveRLCursorBitmap(), Point, Position='cc')
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self.Handle2b = Canvas.AddBitmap(Resources.getMoveRLCursorBitmap(), Point, Position='cc')
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self.SetHandles()
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self.Handle1.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.Handle1Hit)
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self.Handle2a.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.Handle2Hit)
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self.Handle2b.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.Handle2Hit)
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self.Show(True)
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self.Canvas.ZoomToBB()
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self.Resizing = False
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self.ResizeRect = None
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self.Moving = False
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return None
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def Handle1Hit(self, object):
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if not self.Moving:
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self.Moving = True
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self.StartPoint = object.HitCoordsPixel
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def Handle2Hit(self,event=None):
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if not self.Resizing:
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self.Resizing = True
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def OnMove(self, event):
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"""
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Updates the status bar with the world coordinates
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And moves a point if there is one
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"""
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self.SetStatusText("%.4f, %.4f"%tuple(event.Coords))
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if self.Resizing:
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((xy),(wh)) = self.Box.GetBoxRect()
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(xp, yp) = self.Canvas.WorldToPixel(xy)
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(wp, hp) = self.Canvas.ScaleWorldToPixel(wh)
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hp = -hp
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Corner = event.GetPosition()
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if self.Box.Position[1] in 'lc':
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wp = max(20, Corner[0]-xp) # don't allow the box to get narrower than 20 pixels
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elif self.Box.Position[1] in 'r':
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DeltaX = Corner[0]-xp
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xp += DeltaX
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wp -= DeltaX
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# draw the RB box
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dc = wx.ClientDC(self.Canvas)
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dc.SetPen(wx.Pen('WHITE', 2, wx.SHORT_DASH))
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dc.SetBrush(wx.TRANSPARENT_BRUSH)
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dc.SetLogicalFunction(wx.XOR)
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if self.ResizeRect:
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dc.DrawRectangle(*self.ResizeRect)
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self.ResizeRect = (xp,yp,wp,hp)
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dc.DrawRectangle(*self.ResizeRect)
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elif self.Moving:
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dxy = event.GetPosition() - self.StartPoint
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((xy),(wh)) = self.Box.GetBoxRect()
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xp, yp = self.Canvas.WorldToPixel(xy) + dxy
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(wp, hp) = self.Canvas.ScaleWorldToPixel(wh)
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hp = -hp
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# draw the RB box
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dc = wx.ClientDC(self.Canvas)
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dc.SetPen(wx.Pen('WHITE', 2, wx.SHORT_DASH))
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dc.SetBrush(wx.TRANSPARENT_BRUSH)
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dc.SetLogicalFunction(wx.XOR)
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if self.ResizeRect:
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dc.DrawRectangle(*self.ResizeRect)
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self.ResizeRect = (xp,yp,wp,hp)
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dc.DrawRectangle(*self.ResizeRect)
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def OnLeftDown(self, event):
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pass
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def OnLeftUp(self, event):
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if self.Resizing:
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self.Resizing = False
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if self.ResizeRect:
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Point = self.Canvas.PixelToWorld(self.ResizeRect[:2])
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W, H = self.Canvas.ScalePixelToWorld(self.ResizeRect[2:4])
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self.ResizeRect = None
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self.Box.ReWrap(W)
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self.SetHandles()
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elif self.Moving:
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self.Moving = False
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if self.ResizeRect:
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dxy = event.GetPosition() - self.StartPoint
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dxy = self.Canvas.ScalePixelToWorld(dxy)
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self.Box.Move(dxy)
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self.ResizeRect = None
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# self.Box.SetPoint(Point1)
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self.SetHandles()
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self.Canvas.Draw(True)
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def SetHandles(self):
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((x,y),(w,h)) = self.Box.GetBoxRect()
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if self.Box.Position[1] in "lc":
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x += w
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y -= h/3
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self.Handle2a.SetPoint((x,y))
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y -= h/3
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self.Handle2b.SetPoint((x,y))
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self.Handle1.SetPoint(self.Box.XY)
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app = wx.PySimpleApp()
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DrawFrame(None, -1, "FloatCanvas TextBox Test App", wx.DefaultPosition, (700,700) )
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app.MainLoop()
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