4120ef2b38
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4430 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
241 lines
7.0 KiB
Python
241 lines
7.0 KiB
Python
|
|
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)
|
|
|
|
msg = "Custom Drag-And-Drop"
|
|
text = wxStaticText(self, -1, "", style=wxALIGN_CENTRE)
|
|
text.SetFont(wxFont(24, wxSWISS, wxNORMAL, wxBOLD, false))
|
|
text.SetLabel(msg)
|
|
w,h = text.GetTextExtent(msg)
|
|
text.SetSize(wxSize(w,h+1))
|
|
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.
|
|
"""
|