#---------------------------------------------------------------------------
# Name:        etg/sizer.py
# Author:      Kevin Ollivier
#              Robin Dunn
#
# Created:     26-Aug-2011
# Copyright:   (c) 2011 by Wide Open Technologies
# License:     wxWindows License
#---------------------------------------------------------------------------

import etgtools
import etgtools.tweaker_tools as tools

PACKAGE   = "wx"
MODULE    = "_core"
NAME      = "sizer"   # Base name of the file to generate to for this script
DOCSTRING = ""

# The classes and/or the basename of the Doxygen XML files to be processed by
# this script. 
ITEMS  = [ 
            'wxSizerItem', 
            'wxSizerFlags',

            'wxSizer',
            'wxBoxSizer',
            'wxStaticBoxSizer',
            'wxGridSizer',
            'wxFlexGridSizer',
            'wxStdDialogButtonSizer',
        ]    
    
#---------------------------------------------------------------------------

def run():
    # Parse the XML file(s) building a collection of Extractor objects
    module = etgtools.ModuleDef(PACKAGE, MODULE, NAME, DOCSTRING)
    etgtools.parseDoxyXML(module, ITEMS)

    #-----------------------------------------------------------------
    # Tweak the parsed meta objects in the module object as needed for
    # customizing the generated code and docstrings.


    c = module.find('wxSizerItem')
    assert isinstance(c, etgtools.ClassDef)
    tools.removeVirtuals(c)
    
    # ctors taking a sizer transfer ownership
    for m in c.find('wxSizerItem').all():
        if m.findItem('sizer'):
            m.find('sizer').transfer = True

    c.find('AssignSizer.sizer').transfer = True
    
    # userData args transfer ownership too, and we'll use wxPyUserData
    # instead of any wxObject
    for m in c.allItems():
        if isinstance(m, etgtools.MethodDef) and m.findItem('userData'):
            m.find('userData').transfer = True
            m.find('userData').type = 'wxPyUserData*'
            
    gud = c.find('GetUserData')
    gud.type = 'wxPyUserData*'
    gud.setCppCode('return dynamic_cast<wxPyUserData*>(self->GetUserData());')

    # these have been deprecated for a while so go ahead and get rid of them
    c.find('SetWindow').ignore()
    c.find('SetSizer').ignore()
    c.find('SetSpacer').ignore()

    c.addPrivateCopyCtor()

    #---------------------------------------------
    c = module.find('wxSizer')
    assert isinstance(c, etgtools.ClassDef)
    tools.fixSizerClass(c)
    c.addPrivateCopyCtor()
    c.addPrivateAssignOp()
    
    for func in c.findAll('Add') + c.findAll('Insert') + c.findAll('Prepend'):
        if func.findItem('sizer'):
            func.find('sizer').transfer = True
        if func.findItem('userData'):
            func.find('userData').transfer = True
            func.find('userData').type = 'wxPyUserData*'
        if func.findItem('item'):
            func.find('item').transfer = True
            
    c.find('GetChildren').overloads = []
    
    # Needs wxWin 2.6 compatibility
    c.find('Remove').findOverload('(wxWindow *window)').ignore()

    c.addPyMethod('AddMany', '(self, items)', 
        doc="""\
        AddMany is a convenience method for adding several items to a sizer
        at one time. Simply pass it a list of tuples, where each tuple
        consists of the parameters that you would normally pass to the `Add`
        method.
        """,        
        body="""\
        for item in items:
            if not isinstance(item, (tuple, list)):
                item = (item, )
            self.Add(*item)
        """)

    c.addPyMethod('Hide', '(self, item, recursive=False)',
        doc="""\
        A convenience method for `Show`(item, False, recursive).
        """,
        body="""\
        return self.Show(item, False, recursive)
        """)
    
    #---------------------------------------------
    c = module.find('wxBoxSizer')
    tools.fixSizerClass(c)
    c.find('wxBoxSizer.orient').default = 'wxHORIZONTAL'


    #---------------------------------------------
    c = module.find('wxStaticBoxSizer')
    tools.fixSizerClass(c)
    c.find('wxStaticBoxSizer.orient').default = 'wxHORIZONTAL'


    #---------------------------------------------
    c = module.find('wxGridSizer')
    tools.fixSizerClass(c)

    c.addPyMethod('CalcRowsCols', '(self)',
        doc="""\
        CalcRowsCols() -> (rows, cols)

        Calculates how many rows and columns will be in the sizer based
        on the current number of items and also the rows, cols specified
        in the constructor.
        """,
        body="""\
        nitems = len(self.GetChildren())
        rows = self.GetRows()
        cols = self.GetCols()
        assert rows != 0 or cols != 0, "Grid sizer must have either rows or columns fixed"
        if cols != 0:
            rows = (nitems + cols - 1) / cols
        elif rows != 0:
            cols = (nitems + rows - 1) / rows
        return (rows, cols)
        """)
    
    #---------------------------------------------
    c = module.find('wxFlexGridSizer')
    tools.fixSizerClass(c)

    
    #---------------------------------------------
    c = module.find('wxStdDialogButtonSizer')
    tools.fixSizerClass(c)


    
    module.addPyCode("PySizer = wx.deprecated(Sizer)")
        
    module.addItem(tools.wxListWrapperTemplate('wxSizerItemList', 'wxSizerItem', module))
    

    #-----------------------------------------------------------------
    tools.doCommonTweaks(module)
    tools.runGenerators(module)
    
    
#---------------------------------------------------------------------------
if __name__ == '__main__':
    run()