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- #!/usr/bin/env python
- # -*- coding: iso-8859-15 -*-
- # generated by wxGlade 0.6.3 on Wed Oct 06 08:05:30 2010
- import wx
- # begin wxGlade: extracode
- # end wxGlade
- class drawFrame(wx.Frame):
- menuColours = { 100 : 'Black'}
- maxThickness = 16
- def __init__(self, *args, **kwds):
- # begin wxGlade: drawFrame.__init__
- kwds["style"] = wx.DEFAULT_FRAME_STYLE & ~ (wx.RESIZE_BORDER|wx.RESIZE_BOX|wx.MAXIMIZE_BOX)
- wx.Frame.__init__(self, *args, **kwds)
- self.SetSizeHints(300,400,300,400)
- self.listeners = []
- self.thickness = 3
- self.SetColour("Black")
- self.lines = []
- self.pos = wx.Point(0,0)
- self.MakeMenu()
- self.clearButton = wx.Button(self, -1, "Clear")
- self.bitmap_1 = wx.StaticBitmap(self, -1, wx.Bitmap("C:\\pyoctane\\trunk\\pixmaps\\1250693098_back.png", wx.BITMAP_TYPE_ANY))
- self.submitButton = wx.Button(self, -1, "Submit")
- self.__set_properties()
- self.__do_layout()
- # end wxGlade
- def __set_properties(self):
- # begin wxGlade: drawFrame.__set_properties
- self.SetTitle("frame_1")
- self.SetBackgroundColour(wx.Colour(244, 244, 244))
- # end wxGlade
- def __do_layout(self):
- # begin wxGlade: drawFrame.__do_layout
- sizer_1 = wx.BoxSizer(wx.VERTICAL)
- sizer_1.Add(self.clearButton, 0, 0, 0)
- sizer_1.Add(self.bitmap_1, 0, 0, 0)
- sizer_1.Add(self.submitButton, 0, wx.ALIGN_CENTER_HORIZONTAL, 0)
- self.SetSizer(sizer_1)
- sizer_1.Fit(self)
- sizer_1.SetSizeHints(self)
- self.Layout()
- self.Centre()
- # end wxGlade
- def Cleanup(self, evt):
- if hasattr(self, "menu"):
- self.menu.Destroy()
- del self.menu
- def InitBuffer(self):
- """Initialize the bitmap used for buffering the display."""
- size = self.GetClientSize()
- self.buffer = wx.EmptyBitmap(max(1,size.width), max(1,size.height))
- self.dc = wx.BufferedDC(None, self.buffer)
- self.dc.SetBackground(wx.Brush(self.GetBackgroundColour()))
- self.dc.Clear()
- self.DrawLines(self.dc)
- self.reInitBuffer = False
- def SetColour(self, colour):
- """Set a new colour and make a matching pen"""
- self.colour = colour
- self.pen = wx.Pen(self.colour, self.thickness, wx.SOLID)
- self.Notify()
- def SetThickness(self, num):
- """Set a new line thickness and make a matching pen"""
- self.thickness = num
- self.pen = wx.Pen(self.colour, self.thickness, wx.SOLID)
- self.Notify()
- def GetLinesData(self):
- return self.lines[:]
- def SetLinesData(self, lines):
- self.lines = lines[:]
- self.InitBuffer()
- self.Refresh()
- def MakeMenu(self):
- """Make a menu that can be popped up later"""
- menu = wx.Menu()
- keys = self.menuColours.keys()
- keys.sort()
- for k in keys:
- text = self.menuColours[k]
- menu.Append(k, text, kind=wx.ITEM_CHECK)
- self.Bind(wx.EVT_MENU_RANGE, self.OnMenuSetColour, id=100, id2=200)
- self.Bind(wx.EVT_UPDATE_UI_RANGE, self.OnCheckMenuColours, id=100, id2=200)
- menu.Break()
- for x in range(1, self.maxThickness+1):
- menu.Append(x, str(x), kind=wx.ITEM_CHECK)
- self.Bind(wx.EVT_MENU_RANGE, self.OnMenuSetThickness, id=1, id2=self.maxThickness)
- self.Bind(wx.EVT_UPDATE_UI_RANGE, self.OnCheckMenuThickness, id=1, id2=self.maxThickness)
- self.menu = menu
- # These two event handlers are called before the menu is displayed
- # to determine which items should be checked.
- def OnCheckMenuColours(self, event):
- text = self.menuColours[event.GetId()]
- if text == self.colour:
- event.Check(True)
- event.SetText(text.upper())
- else:
- event.Check(False)
- event.SetText(text)
- def OnCheckMenuThickness(self, event):
- if event.GetId() == self.thickness:
- event.Check(True)
- else:
- event.Check(False)
- def OnLeftDown(self, event):
- """called when the left mouse button is pressed"""
- self.curLine = []
- self.pos = event.GetPosition()
- self.CaptureMouse()
- def OnLeftUp(self, event):
- """called when the left mouse button is released"""
- if self.HasCapture():
- self.lines.append( (self.colour, self.thickness, self.curLine) )
- self.curLine = []
- self.ReleaseMouse()
- def OnRightUp(self, event):
- """called when the right mouse button is released, will popup the menu"""
- pt = event.GetPosition()
- self.PopupMenu(self.menu, pt)
- def OnMotion(self, event):
- """
- Called when the mouse is in motion. If the left button is
- dragging then draw a line from the last event position to the
- current one. Save the coordinants for redraws.
- """
- if event.Dragging() and event.LeftIsDown():
- dc = wx.BufferedDC(wx.ClientDC(self), self.buffer)
- dc.BeginDrawing()
- dc.SetPen(self.pen)
- pos = event.GetPosition()
- coords = (self.pos.x, self.pos.y, pos.x, pos.y)
- self.curLine.append(coords)
- dc.DrawLine(*coords)
- self.pos = pos
- dc.EndDrawing()
- def OnSize(self, event):
- """
- Called when the window is resized. We set a flag so the idle
- handler will resize the buffer.
- """
- self.reInitBuffer = True
- def OnIdle(self, event):
- """
- If the size was changed then resize the bitmap used for double
- buffering to match the window size. We do it in Idle time so
- there is only one refresh after resizing is done, not lots while
- it is happening.
- """
- if self.reInitBuffer:
- self.InitBuffer()
- self.Refresh(False)
- def OnPaint(self, event):
- """
- Called when the window is exposed.
- """
- # Create a buffered paint DC. It will create the real
- # wx.PaintDC and then blit the bitmap to it when dc is
- # deleted. Since we don't need to draw anything else
- # here that's all there is to it.
- dc = wx.BufferedPaintDC(self, self.buffer)
- def DrawLines(self, dc):
- """
- Redraws all the lines that have been drawn already.
- """
- self.dc.BeginDrawing()
- for colour, thickness, line in self.lines:
- pen = wx.Pen(colour, thickness, wx.SOLID)
- self.dc.SetPen(pen)
- for coords in line:
- self.dc.DrawLine(*coords)
- self.dc.EndDrawing()
- # Event handlers for the popup menu, uses the event ID to determine
- # the colour or the thickness to set.
- def OnMenuSetColour(self, event):
- self.SetColour(self.menuColours[event.GetId()])
- def OnMenuSetThickness(self, event):
- self.SetThickness(event.GetId())
- # Observer pattern. Listeners are registered and then notified
- # whenever doodle settings change.
- def AddListener(self, listener):
- self.listeners.append(listener)
- def Notify(self):
- for other in self.listeners:
- other.Update(self.colour, self.thickness)
- def clear(self, event):
- print "clear"
- self.dc.Clear()
- # end of class drawFrame
- if __name__ == "__main__":
- app = wx.PySimpleApp(0)
- wx.InitAllImageHandlers()
- drawFrame = drawFrame(None, -1, "")
- app.SetTopWindow(drawFrame)
- drawFrame.Show()
- app.MainLoop()
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