multisash.py

Wxpython Implemented on Windows CE, Source code

#----------------------------------------------------------------------
# Name:         multisash
# Purpose:      Multi Sash control
#
# Author:       Gerrit van Dyk
#
# Created:      2002/11/20
# Version:      0.1
# RCS-ID:       $Id: multisash.py,v 1.13 2005/03/24 20:37:48 RD Exp $
# License:      wxWindows license
#----------------------------------------------------------------------
# 12/09/2003 - Jeff Grimmett ([e-mail])
#
# o 2.5 compatability update.
#
# 12/20/2003 - Jeff Grimmett ([e-mail])
#
# o wxMultiSash -> MultiSash
# o wxMultiSplit -> MultiSplit 
# o wxMultiViewLeaf -> MultiViewLeaf
#

import wx

MV_HOR = 0
MV_VER = not MV_HOR

SH_SIZE = 5
CR_SIZE = SH_SIZE * 3

#----------------------------------------------------------------------

class MultiSash(wx.Window):
    def __init__(self, *_args,**_kwargs):
        apply(wx.Window.__init__,(self,) + _args,_kwargs)
        self._defChild = EmptyChild
        self.child = MultiSplit(self,self,(0,0),self.GetSize())
        self.Bind(wx.EVT_SIZE,self.OnMultiSize)

    def SetDefaultChildClass(self,childCls):
        self._defChild = childCls
        self.child.DefaultChildChanged()

    def OnMultiSize(self,evt):
        self.child.SetSize(self.GetSize())

    def UnSelect(self):
        self.child.UnSelect()

    def Clear(self):
        old = self.child
        self.child = MultiSplit(self,self,(0,0),self.GetSize())
        old.Destroy()
        self.child.OnSize(None)

    def GetSaveData(self):
        saveData = {}
        saveData['_defChild_class'] = self._defChild.__name__
        saveData['_defChild_mod']   = self._defChild.__module__
        saveData['child'] = self.child.GetSaveData()
        return saveData

    def SetSaveData(self,data):
        mod = data['_defChild_mod']
        dChild = mod + '.' + data['_defChild_class']
        exec 'import %s' % mod
        self._defChild = eval(dChild)
        old = self.child
        self.child = MultiSplit(self,self,wx.Point(0,0),self.GetSize())
        self.child.SetSaveData(data['child'])
        old.Destroy()
        self.OnMultiSize(None)
        self.child.OnSize(None)


#----------------------------------------------------------------------


class MultiSplit(wx.Window):
    def __init__(self,multiView,parent,pos,size,view1 = None):
        wx.Window.__init__(self,id = -1,parent = parent,pos = pos,size = size,
                          style = wx.CLIP_CHILDREN)
        self.multiView = multiView
        self.view2 = None
        if view1:
            self.view1 = view1
            self.view1.Reparent(self)
            self.view1.MoveXY(0,0)
        else:
            self.view1 = MultiViewLeaf(self.multiView,self,
                                         (0,0),self.GetSize())
        self.direction = None

        self.Bind(wx.EVT_SIZE,self.OnSize)

    def GetSaveData(self):
        saveData = {}
        if self.view1:
            saveData['view1'] = self.view1.GetSaveData()
            if isinstance(self.view1,MultiSplit):
                saveData['view1IsSplit'] = 1
        if self.view2:
            saveData['view2'] = self.view2.GetSaveData()
            if isinstance(self.view2,MultiSplit):
                saveData['view2IsSplit'] = 1
        saveData['direction'] = self.direction
        v1,v2 = self.GetPosition()
        saveData['x'] = v1
        saveData['y'] = v2
        v1,v2 = self.GetSize()
        saveData['w'] = v1
        saveData['h'] = v2
        return saveData

    def SetSaveData(self,data):
        self.direction = data['direction']
        self.SetDimensions(int(data['x']), int(data['y']), int(data['w']), int(data['h']))
        v1Data = data.get('view1',None)
        if v1Data:
            isSplit = data.get('view1IsSplit',None)
            old = self.view1
            if isSplit:
                self.view1 = MultiSplit(self.multiView,self,
                                          (0,0),self.GetSize())
            else:
                self.view1 = MultiViewLeaf(self.multiView,self,
                                             (0,0),self.GetSize())
            self.view1.SetSaveData(v1Data)
            if old:
                old.Destroy()
        v2Data = data.get('view2',None)
        if v2Data:
            isSplit = data.get('view2IsSplit',None)
            old = self.view2
            if isSplit:
                self.view2 = MultiSplit(self.multiView,self,
                                          (0,0),self.GetSize())
            else:
                self.view2 = MultiViewLeaf(self.multiView,self,
                                             (0,0),self.GetSize())
            self.view2.SetSaveData(v2Data)
            if old:
                old.Destroy()
        if self.view1:
            self.view1.OnSize(None)
        if self.view2:
            self.view2.OnSize(None)

    def UnSelect(self):
        if self.view1:
            self.view1.UnSelect()
        if self.view2:
            self.view2.UnSelect()

    def DefaultChildChanged(self):
        if not self.view2:
            self.view1.DefaultChildChanged()

    def AddLeaf(self,direction,caller,pos):
        if self.view2:
            if caller == self.view1:
                self.view1 = MultiSplit(self.multiView,self,
                                          caller.GetPosition(),
                                          caller.GetSize(),
                                          caller)
                self.view1.AddLeaf(direction,caller,pos)
            else:
                self.view2 = MultiSplit(self.multiView,self,
                                          caller.GetPosition(),
                                          caller.GetSize(),
                                          caller)
                self.view2.AddLeaf(direction,caller,pos)
        else:
            self.direction = direction
            w,h = self.GetSize()
            if direction == MV_HOR:
                x,y = (pos,0)
                w1,h1 = (w-pos,h)
                w2,h2 = (pos,h)
            else:
                x,y = (0,pos)
                w1,h1 = (w,h-pos)
                w2,h2 = (w,pos)
            self.view2 = MultiViewLeaf(self.multiView, self, (x,y), (w1,h1))
            self.view1.SetSize((w2,h2))
            self.view2.OnSize(None)

    def DestroyLeaf(self,caller):
        if not self.view2:              # We will only have 2 windows if
            return                      # we need to destroy any
        parent = self.GetParent()       # Another splitview
        if parent == self.multiView:    # We'r at the root
            if caller == self.view1:
                old = self.view1
                self.view1 = self.view2
                self.view2 = None
                old.Destroy()
            else:
                self.view2.Destroy()
                self.view2 = None
            self.view1.SetSize(self.GetSize())
            self.view1.Move(self.GetPosition())
        else:
            w,h = self.GetSize()
            x,y = self.GetPosition()
            if caller == self.view1:
                if self == parent.view1:
                    parent.view1 = self.view2
                else:
                    parent.view2 = self.view2
                self.view2.Reparent(parent)
                self.view2.SetDimensions(x,y,w,h)
            else:
                if self == parent.view1:
                    parent.view1 = self.view1
                else:
                    parent.view2 = self.view1
                self.view1.Reparent(parent)
                self.view1.SetDimensions(x,y,w,h)
            self.view1 = None
            self.view2 = None
            self.Destroy()

    def CanSize(self,side,view):
        if self.SizeTarget(side,view):
            return True
        return False

    def SizeTarget(self,side,view):
        if self.direction == side and self.view2 and view == self.view1:
            return self
        parent = self.GetParent()
        if parent != self.multiView:
            return parent.SizeTarget(side,self)
        return None

    def SizeLeaf(self,leaf,pos,side):
        if self.direction != side:
            return
        if not (self.view1 and self.view2):
            return
        if pos < 10: return
        w,h = self.GetSize()
        if side == MV_HOR:
            if pos > w - 10: return
        else:
            if pos > h - 10: return
        if side == MV_HOR:
            self.view1.SetDimensions(0,0,pos,h)
            self.view2.SetDimensions(pos,0,w-pos,h)
        else:
            self.view1.SetDimensions(0,0,w,pos)
            self.view2.SetDimensions(0,pos,w,h-pos)

    def OnSize(self,evt):
        if not self.view2:
            self.view1.SetSize(self.GetSize())
            self.view1.OnSize(None)
            return
        v1w,v1h = self.view1.GetSize()
        v2w,v2h = self.view2.GetSize()
        v1x,v1y = self.view1.GetPosition()
        v2x,v2y = self.view2.GetPosition()
        w,h = self.GetSize()

        if v1x != v2x:
            ratio = float(w) / float((v1w + v2w))
            v1w *= ratio
            v2w = w - v1w
            v2x = v1w
        else:
            v1w = v2w = w

        if v1y != v2y:
            ratio = float(h) / float((v1h + v2h))
            v1h *= ratio
            v2h = h - v1h
            v2y = v1h
        else:
            v1h = v2h = h

        self.view1.SetDimensions(int(v1x), int(v1y), int(v1w), int(v1h))
        self.view2.SetDimensions(int(v2x), int(v2y), int(v2w), int(v2h))
        self.view1.OnSize(None)
        self.view2.OnSize(None)


#----------------------------------------------------------------------


class MultiViewLeaf(wx.Window):
    def __init__(self,multiView,parent,pos,size):
        wx.Window.__init__(self,id = -1,parent = parent,pos = pos,size = size,
                          style = wx.CLIP_CHILDREN)
        self.multiView = multiView

        self.sizerHor = MultiSizer(self,MV_HOR)
        self.sizerVer = MultiSizer(self,MV_VER)
        self.creatorHor = MultiCreator(self,MV_HOR)
        self.creatorVer = MultiCreator(self,MV_VER)
        self.detail = MultiClient(self,multiView._defChild)
        self.closer = MultiCloser(self)

        self.Bind(wx.EVT_SIZE,self.OnSize)

        self.SetBackgroundColour(wx.SystemSettings.GetColour(wx.SYS_COLOUR_3DFACE))


    def GetSaveData(self):
        saveData = {}
        saveData['detailClass_class'] = self.detail.child.__class__.__name__
        saveData['detailClass_mod'] = self.detail.child.__module__
        if hasattr(self.detail.child,'GetSaveData'):
            attr = getattr(self.detail.child,'GetSaveData')
            if callable(attr):
                dData = attr()
                if dData:
                    saveData['detail'] = dData
        v1,v2 = self.GetPosition()
        saveData['x'] = v1
        saveData['y'] = v2
        v1,v2 = self.GetSize()
        saveData['w'] = v1
        saveData['h'] = v2
        return saveData

    def SetSaveData(self,data):
        mod = data['detailClass_mod']
        dChild = mod + '.' + data['detailClass_class']
        exec 'import %s' % mod
        detClass = eval(dChild)
        self.SetDimensions(data['x'],data['y'],data['w'],data['h'])
        old = self.detail
        self.detail = MultiClient(self,detClass)
        dData = data.get('detail',None)
        if dData:
            if hasattr(self.detail.child,'SetSaveData'):
                attr = getattr(self.detail.child,'SetSaveData')
                if callable(attr):
                    attr(dData)
        old.Destroy()
        self.detail.OnSize(None)

    def UnSelect(self):
        self.detail.UnSelect()

    def DefaultChildChanged(self):
        self.detail.SetNewChildCls(self.multiView._defChild)

    def AddLeaf(self,direction,pos):
        if pos < 10: return
        w,h = self.GetSize()
        if direction == MV_VER:
            if pos > h - 10: return
        else:
            if pos > w - 10: return
        self.GetParent().AddLeaf(direction,self,pos)

    def DestroyLeaf(self):
        self.GetParent().DestroyLeaf(self)

    def SizeTarget(self,side):
        return self.GetParent().SizeTarget(side,self)

    def CanSize(self,side):
        return self.GetParent().CanSize(side,self)

    def OnSize(self,evt):
        def doresize():
            try:
                self.sizerHor.OnSize(evt)
                self.sizerVer.OnSize(evt)
                self.creatorHor.OnSize(evt)
                self.creatorVer.OnSize(evt)