在此先感谢您的答复...。我已经开始创建一个网络拓扑程序,该程序的工作方式与cisco数据包跟踪程序或GNS3相同。...我已经在许多项目中使用了Python,但在在了解要使用的功能时,事实证明第一次是非常有用的。
当用户单击此按钮时,他们具有各种不同的按钮,例如路由器按钮,交换机,主机计算机和服务器按钮等,我希望按钮上的图像出现在可编辑区域中。 (类似于画图)用户然后可以使用wxPython拖放功能将其在此区域内移动。我无法理解该区域的用途...。我尝试在Google中搜索“ wxPython如何创建绘画程序”等,但还是没有运气。
请有人建议他们如何制作此程序?
卡尔
最佳答案
这是wxpython的摘录(罗宾·邓恩(Robin Dunn)正在使用wxpython),该书显示了如何使用画图。希望这可以帮助:
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()
关于python - wxPython一个网络拓扑工具-需要帮助-请看一下:),我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/9862708/