什么是点画一个Tkinter的帆布插件的最简单的方法？

我有一个Tkinter的画布组件，我想在其上创建点画模式。我知道我可以使用create_line方法做手工。不过，我认为似乎有更好的办法。任何帮助将非常感激。什么是点画一个Tkinter的帆布插件的最简单的方法？

我目前正在工作什么。（按Alt-F4退出程序）

import Tkinter, re 

class StippleCanvas(Tkinter.Tk): 
    def __init__(self, parent): 
     Tkinter.Tk.__init__(self, parent) 


     self.overrideredirect(1) 
     self.resizable(False,False) 
     self.wm_attributes("-topmost", 1) 
     self.attributes("-alpha", 0.9) 

     w = 90 
     h = 90 

     self.Ca = Tkinter.Canvas(self, width=w, height=h, highlightthickness=0, bd=0, bg='grey25') 
     self.Ca.grid(column=0, row=0) 
     self.bind('<Button-1>', self.relative_mouse_position) 
     self.bind('<ButtonRelease-1>', self.wid_unbind) 

     i0 = 0 
     while i0 < w: 
      i1 = 0 
      while i1 < h: 
       self.Ca.create_line(i1, i0, i1+1, i0, fill='grey20', width=1) 
       i1 = i1 + 2 
      i0 = i0 + 2 

    def geom_grab (self): 
     Cursorgfltr = re.compile(r"(\d+), (\d+)") 
     CursorPos = self.winfo_pointerxy() 
     CursorPosGr = Cursorgfltr.search(str(CursorPos)) 
     self.CursorX = int(CursorPosGr.group(1)) 
     self.CursorY = int(CursorPosGr.group(2)) 

     gfltr = re.compile(r"(\d+)?x?(\d+)?([+-])(\d+)([+-])(\d+)") 

     gf = gfltr.search(self.wm_geometry()) 
     self.X = int(gf.group(4)) 
     self.Y = int(gf.group(6)) 

    def relative_mouse_position (self, event): 
     self.geom_grab() 

     RelX = self.CursorX - self.X 
     RelY = self.CursorY - self.Y 

     self.Ca.bind("<Motion>", lambda event: self.wid_drag(event, RelX, RelY)) 

    def wid_drag (self, event, RelX, RelY): 


     self.geom_grab() 

     X = self.CursorX - RelX 
     Y = self.CursorY - RelY 

     if X < 0: 
      X = 0 

     if Y < 0: 
      Y = 0 

     self.wm_geometry('+' + str(X) + '+' + str(Y)) 


    def wid_unbind (self, event): 
     self.Ca.unbind("<Motion>") 

def run(): 
    StippleCanvas(None).mainloop() 
if __name__ == '__main__': 
    run()

来源

2011-01-29 rectangletangle