wxPython的网络拓扑工具 - 需要一些帮助 - 请大家看看:)

Question

在此先感谢您的答复....我已经开始建立网络拓扑方案，其中以相同的方式，思科Packet Tracer中或GNS3工作......我已经使用的Python的一些项目，但使用wxPython的图书馆首次被证明是一个巨大的极少数，当它来了解哪些功能使用。

用户有多种不同的按钮，如路由器按钮，开关，主机和服务器按钮等，当他们点击这个按钮，我想在按钮上的图像出现在编辑区域。 （类似于绘画）用户可以使用wxPython拖放功能在该区域内移动它。我不能让我的周围有什么要用于这方面的头....我已经tryed在谷歌搜索“的wxPython如何创建一个画图程序”等，但仍然没有运气。

请可能有人建议他们将如何使这个计划？

卡尔

Answer 1

这里是它展示了如何使用油漆的wxPython（在行动wxPython的罗宾·邓恩）一书的摘录。希望这有助于：

import wx 
    class SketchWindow(wx.Window): 
    def __init__(self, parent, ID): 
    wx.Window.__init__(self, parent, ID) 
    self.SetBackgroundColour("White") 
    self.color = "Black" 
    self.thickness = 1 
    self.pen = wx.Pen(self.color, self.thickness, wx.SOLID) 
    self.lines = [] 
    self.curLine = [] 
    self.pos = (0, 0) 
    self.InitBuffer() 
    self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown) 
    self.Bind(wx.EVT_LEFT_UP, self.OnLeftUp) 

    self.Bind(wx.EVT_MOTION, self.OnMotion) self.Bind(wx.EVT_SIZE, 
    self.OnSize) self.Bind(wx.EVT_IDLE, self.OnIdle) 
    self.Bind(wx.EVT_PAINT, self.OnPaint) 

    def InitBuffer(self): 
    size = self.GetClientSize() 
    self.buffer = wx.EmptyBitmap(size.width, size.height) 
    dc = wx.BufferedDC(None, self.buffer) 
    dc.SetBackground(wx.Brush(self.GetBackgroundColour())) 
    dc.Clear() 
    self.DrawLines(dc) 
    self.reInitBuffer = False 

    def GetLinesData(self): 
    return self.lines[:] 
    def SetLinesData(self, lines): 
    self.lines = lines[:] 
    self.InitBuffer() 
    self.Refresh() 
    def OnLeftDown(self, event): 
    self.curLine = [] 
    self.pos = event.GetPositionTuple() 
    self.CaptureMouse() 
    def OnLeftUp(self, event): 
    if self.HasCapture(): 
    self.lines.append((self.color, 
    self.thickness, 
    self.curLine)) 
    self.curLine = [] 
    self.ReleaseMouse() 
    def OnMotion(self, event): 
    if event.Dragging() and event.LeftIsDown(): 
    dc = wx.BufferedDC(wx.ClientDC(self), self.buffer) 
    self.drawMotion(dc, event) 
    event.Skip() 
    def drawMotion(self, dc, event): 
    dc.SetPen(self.pen) 
    newPos = event.GetPositionTuple() 
    coords = self.pos + newPos 
    self.curLine.append(coords) 
    dc.DrawLine(*coords) 
    self.pos = newPos 

    def OnSize(self, event): 
    self.reInitBuffer = True 
     def OnIdle(self, event): 
     if self.reInitBuffer: 
    self.InitBuffer() 
     self.Refresh(False) 
    def OnPaint(self, event): 
    dc = wx.BufferedPaintDC(self, self.buffer) 
    def DrawLines(self, dc): 
    for colour, thickness, line in self.lines: 
    pen = wx.Pen(colour, thickness, wx.SOLID) 
    dc.SetPen(pen) 
    for coords in line: 
    dc.DrawLine(*coords) 
    def SetColor(self, color): 
    self.color = color 
    self.pen = wx.Pen(self.color, self.thickness, wx.SOLID) 
    def SetThickness(self, num): 
    self.thickness = num 
    self.pen = wx.Pen(self.color, self.thickness, wx.SOLID) 
    class SketchFrame(wx.Frame): 
    def __init__(self, parent): 
    wx.Frame.__init__(self, parent, -1, "Sketch Frame", 
    size=(800,600)) 
    self.sketch = SketchWindow(self, -1) 
     if __name__ == '__main__': 
     app = wx.PySimpleApp() 
    frame = SketchFrame(None) 
     frame.Show(True) 
     app.MainLoop()