Mercurial > repos > rhope
comparison editgraph.py @ 23:0534bb8ee7ad
Added beginnings of graphical editor prototype
| author | Mike Pavone <pavone@retrodev.com> |
|---|---|
| date | Wed, 24 Jun 2009 20:05:21 +0000 |
| parents | |
| children |
comparison
equal
deleted
inserted
replaced
| 22:812673a8b1ea | 23:0534bb8ee7ad |
|---|---|
| 1 import Tkinter | |
| 2 from tkFont import Font | |
| 3 | |
| 4 class Call(object): | |
| 5 def __init__(self, canvas, center, text = None, chars=None, padw = 20, padh = 4, fill="gray", outline="black",selectoutline="red"): | |
| 6 x,y = center | |
| 7 self.x = x | |
| 8 self.y = y | |
| 9 self.text = Tkinter.StringVar() | |
| 10 self.textlen = 0 | |
| 11 if text != None: | |
| 12 self.text.set(text) | |
| 13 self.textlen = len(text) | |
| 14 if chars == None: | |
| 15 chars = len(text)+3 | |
| 16 elif chars == None: | |
| 17 chars = 3 | |
| 18 self.textwidget = Tkinter.Entry(canvas, width=chars, textvariable=self.text, font=Font(family="Courier New", size=10)) | |
| 19 self.textwidget.bind('<Key>', self.textchanged, '+') | |
| 20 self.canvastext = canvas.create_window(x, y, window=self.textwidget) | |
| 21 box = canvas.bbox(self.canvastext) | |
| 22 self.width = box[2]-box[0]+padw | |
| 23 self.height = box[3]-box[1]+padh | |
| 24 hw = self.width / 2 | |
| 25 hh = self.height / 2 | |
| 26 ow = hw+10 | |
| 27 self.poly = canvas.create_polygon(x-hw,y-hh, x+hw,y-hh, x+ow,y, x+hw,y+hh, x-hw,y+hh, x-ow,y, fill=fill, outline=outline) | |
| 28 self.outline = outline | |
| 29 self.selectoutline = selectoutline | |
| 30 self.mousex = self.mousey = 0 | |
| 31 | |
| 32 def hittest(self, x, y): | |
| 33 ow = self.width / 2 + 10 | |
| 34 hh = self.height / 2 | |
| 35 return abs(x-self.x) <= ow and abs(y-self.y) <= hh | |
| 36 | |
| 37 def onclick(self, x, y): | |
| 38 canvas.itemconfig(self.poly, outline=self.selectoutline) | |
| 39 self.mousex = x | |
| 40 self.mousey = y | |
| 41 | |
| 42 def lostfocus(self): | |
| 43 canvas.itemconfig(self.poly, outline=self.outline) | |
| 44 | |
| 45 def ondrag(self, x, y): | |
| 46 self.x += x-self.mousex | |
| 47 self.y += y-self.mousey | |
| 48 self.mousex = x | |
| 49 self.mousey = y | |
| 50 hw = self.width / 2 | |
| 51 hh = self.height / 2 | |
| 52 ow = hw+10 | |
| 53 canvas.coords(self.poly, self.x-hw,self.y-hh, self.x+hw,self.y-hh, self.x+ow,self.y, self.x+hw,self.y+hh, self.x-hw,self.y+hh, self.x-ow,self.y) | |
| 54 canvas.coords(self.canvastext, self.x, self.y) | |
| 55 | |
| 56 def textchanged(self,event): | |
| 57 text = self.text.get() | |
| 58 newlen = len(text) | |
| 59 print text | |
| 60 if newlen != self.textlen: | |
| 61 print 'length changed' | |
| 62 self.textlen = newlen | |
| 63 | |
| 64 grabbed = None | |
| 65 def onclick(event): | |
| 66 global grabbed | |
| 67 if grabbed != None: | |
| 68 grabbed.lostfocus() | |
| 69 grabbed = None | |
| 70 print "Click" | |
| 71 #TODO: Consider using quadtrees for performance | |
| 72 for i in range(len(nodes)-1,-1,-1): | |
| 73 node = nodes[i] | |
| 74 if node.hittest(event.x, event.y): | |
| 75 grabbed = node | |
| 76 print "Found hit!" | |
| 77 node.onclick(event.x, event.y) | |
| 78 break | |
| 79 | |
| 80 def ondrag(event): | |
| 81 global grabbed | |
| 82 if grabbed != None: | |
| 83 grabbed.ondrag(event.x, event.y) | |
| 84 | |
| 85 def ondoubleclick(event): | |
| 86 global nodes | |
| 87 nodes.append(Call(canvas, (event.x, event.y))) | |
| 88 | |
| 89 root = Tkinter.Tk() | |
| 90 canvas = Tkinter.Canvas(root, width=302,height=302) | |
| 91 nodes = [] | |
| 92 nodes.append(Call(canvas, (50,40), "Foo")) | |
| 93 canvas.bind('<Button-1>', onclick) | |
| 94 canvas.bind('<B1-Motion>', ondrag) | |
| 95 canvas.bind('<Double-Button-1>', ondoubleclick) | |
| 96 canvas.pack() | |
| 97 root.mainloop() |