--- /dev/null
+
+from wxPython.wx import *
+
+import cPickle
+
+#----------------------------------------------------------------------
+
+
+class DoodlePad(wxWindow):
+ def __init__(self, parent, log):
+ wxWindow.__init__(self, parent, -1, style=wxSUNKEN_BORDER)
+ self.log = log
+ self.SetBackgroundColour(wxWHITE)
+ self.lines = []
+ self.x = self.y = 0
+ self.SetCursor(wxStockCursor(wxCURSOR_PENCIL))
+
+ EVT_LEFT_DOWN(self, self.OnLeftDown)
+ EVT_LEFT_UP(self, self.OnLeftUp)
+ EVT_RIGHT_UP(self, self.OnRightUp)
+ EVT_MOTION(self, self.OnMotion)
+
+
+ def OnPaint(self, event):
+ dc = wxPaintDC(self)
+ self.DrawSavedLines(dc)
+
+ def DrawSavedLines(self, dc):
+ dc.BeginDrawing()
+ dc.SetPen(wxPen(wxBLUE, 3))
+ for line in self.lines:
+ for coords in line:
+ apply(dc.DrawLine, coords)
+ dc.EndDrawing()
+
+
+ def OnLeftDown(self, event):
+ if event.ControlDown():
+ self.StartDragOpperation()
+ else:
+ self.curLine = []
+ self.x, self.y = event.GetPositionTuple()
+ self.CaptureMouse()
+
+
+ def OnLeftUp(self, event):
+ self.lines.append(self.curLine)
+ self.curLine = []
+ self.ReleaseMouse()
+
+ def OnRightUp(self, event):
+ self.lines = []
+ self.Refresh()
+
+ def OnMotion(self, event):
+ if event.Dragging() and not event.ControlDown():
+ dc = wxClientDC(self)
+ dc.BeginDrawing()
+ dc.SetPen(wxPen(wxBLUE, 3))
+ coords = (self.x, self.y) + event.GetPositionTuple()
+ self.curLine.append(coords)
+ apply(dc.DrawLine, coords)
+ self.x, self.y = event.GetPositionTuple()
+ dc.EndDrawing()
+
+
+ def StartDragOpperation(self):
+ # pickle the lines list
+ linesdata = cPickle.dumps(self.lines, 1)
+
+ # create our own data format and use it in a
+ # custom data object
+ ldata = wxCustomDataObject(wxCustomDataFormat("DoodleLines"))
+ ldata.SetData(linesdata)
+
+ # Also create a Bitmap version of the drawing
+ size = self.GetSize()
+ bmp = wxEmptyBitmap(size.width, size.height)
+ dc = wxMemoryDC()
+ dc.SelectObject(bmp)
+ dc.SetBackground(wxWHITE_BRUSH)
+ dc.Clear()
+ self.DrawSavedLines(dc)
+ dc.SelectObject(wxNullBitmap)
+
+ # Now make a data object for the bitmap and also a composite
+ # data object holding both of the others.
+ bdata = wxBitmapDataObject(bmp)
+ data = wxDataObjectComposite()
+ data.Add(ldata)
+ data.Add(bdata)
+
+ # And finally, create the drop source and begin the drag
+ # and drop opperation
+ dropSource = wxDropSource(self)
+ dropSource.SetData(data)
+ self.log.WriteText("Begining DragDrop\n")
+ result = dropSource.DoDragDrop()
+ self.log.WriteText("DragDrop completed: %d\n" % result)
+
+#----------------------------------------------------------------------
+
+
+class DoodleDropTarget(wxPyDropTarget):
+ def __init__(self, window, log):
+ wxPyDropTarget.__init__(self)
+ self.log = log
+ self.dv = window
+ self.data = wxCustomDataObject(wxCustomDataFormat("DoodleLines"))
+ self.SetDataObject(self.data)
+
+ def OnEnter(self, x, y, d):
+ self.log.WriteText("OnEnter: %d, %d, %d\n" % (x, y, d))
+ return wxDragCopy
+
+ def OnLeave(self):
+ self.log.WriteText("OnLeave\n")
+
+ def OnDrop(self, x, y):
+ self.log.WriteText("OnDrop: %d %d\n" % (x, y))
+ return true
+
+ def OnData(self, x, y, d):
+ self.log.WriteText("OnData: %d, %d, %d\n" % (x, y, d))
+ if self.GetData():
+ linesdata = self.data.GetData()
+ lines = cPickle.loads(linesdata)
+ self.dv.SetLines(lines)
+ return d
+
+ #def OnDragOver(self, x, y, d):
+ # self.log.WriteText("OnDragOver: %d, %d, %d\n" % (x, y, d))
+ # return wxDragCopy
+
+
+
+class DoodleViewer(wxWindow):
+ def __init__(self, parent, log):
+ wxWindow.__init__(self, parent, -1, style=wxSUNKEN_BORDER)
+ self.log = log
+ self.SetBackgroundColour(wxWHITE)
+ self.lines = []
+ self.x = self.y = 0
+ dt = DoodleDropTarget(self, log)
+ self.SetDropTarget(dt)
+
+ def SetLines(self, lines):
+ self.lines = lines
+ self.Refresh()
+
+ def OnPaint(self, event):
+ dc = wxPaintDC(self)
+ self.DrawSavedLines(dc)
+
+ def DrawSavedLines(self, dc):
+ dc.BeginDrawing()
+ dc.SetPen(wxPen(wxRED, 3))
+ for line in self.lines:
+ for coords in line:
+ apply(dc.DrawLine, coords)
+ dc.EndDrawing()
+
+#----------------------------------------------------------------------
+
+class CustomDnDPanel(wxPanel):
+ def __init__(self, parent, log):
+ wxPanel.__init__(self, parent, -1)
+
+ self.SetFont(wxFont(10, wxSWISS, wxNORMAL, wxBOLD, false))
+
+ sizer = wxBoxSizer(wxHORIZONTAL)
+ sizer.Add(wxStaticText(self, -1,
+ "Draw a little picture in this window\n"
+ "then Ctrl-Drag it to the lower \n"
+ "window or to another application\n"
+ "that accepts BMP's as a drop target."),
+ 1, wxEXPAND|wxALL, 10)
+
+ insizer = wxBoxSizer(wxVERTICAL)
+ insizer.Add(DoodlePad(self, log), 1, wxEXPAND|wxALL, 5)
+ insizer.Add(DoodleViewer(self, log), 1, wxEXPAND|wxALL, 5)
+
+ sizer.Add(insizer, 1, wxEXPAND)
+ self.SetAutoLayout(true)
+ self.SetSizer(sizer)
+
+
+
+
+#----------------------------------------------------------------------
+#----------------------------------------------------------------------
+
+class TestPanel(wxPanel):
+ def __init__(self, parent, log):
+ wxPanel.__init__(self, parent, -1)
+
+ self.SetAutoLayout(true)
+ sizer = wxBoxSizer(wxVERTICAL)
+
+ text = wxStaticText(self, -1, "", style=wxALIGN_CENTRE)
+ text.SetFont(wxFont(24, wxSWISS, wxNORMAL, wxBOLD, false))
+ text.SetLabel("Custom Drag-And-Drop")
+ text.SetForegroundColour(wxBLUE)
+ sizer.Add(text, 0, wxEXPAND|wxALL, 5)
+ sizer.Add(wxStaticLine(self, -1), 0, wxEXPAND)
+
+ sizer.Add(CustomDnDPanel(self, log), 1, wxEXPAND)
+
+ self.SetSizer(sizer)
+
+
+#----------------------------------------------------------------------
+
+def runTest(frame, nb, log):
+ win = TestPanel(nb, log)
+ return win
+
+#----------------------------------------------------------------------
+
+
+
+
+
+
+
+
+
+
+
+
+overview = """\
+This demo shows Drand and Drop using a custom data type and a custom data object. A type called "DoodleLines" is created and a Python Pickle of a list is actually transfered in the drag and drop opperation.
+
+A second data object is also created containing a bitmap of the image and is made available to any drop target that accepts bitmaps, such as MS Word.
+
+The two data objects are combined in a wxDataObjectComposite and the rest is handled by the framework.
+"""
projects / wxWidgets.git / blobdiff