Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / python / cpython2 / 6a00b64429c8e2b70dfd28e7142f55d1bb80ec2d / . / Demo / turtle / turtleDemo.py
blob: a454382787e4d8aa466ad96e0fd54e38450321d1 [file] [log] [blame]
Martin v. Löwis97cf99f2008-06-10 04:44:07 +0000[diff] [blame]1#!/usr/bin/python
2import sys
3import os
4
5from tkinter import *
6from idlelib.Percolator import Percolator
7from idlelib.ColorDelegator import ColorDelegator
8from idlelib.textView import view_file # TextViewer
9from imp import reload
10
11from tkinter import turtle
12import time
13
14STARTUP = 1
15READY = 2
16RUNNING = 3
17DONE = 4
18EVENTDRIVEN = 5
19
20menufont = ("Arial", 12, NORMAL)
21btnfont = ("Arial", 12, 'bold')
22txtfont = ('Lucida Console', 8, 'normal')
23
24def getExampleEntries():
25 cwd = os.getcwd()
26 #print(cwd, os.listdir(cwd))
27 if "turtleDemo.py" not in os.listdir(cwd):
28 print("Directory of turtleDemo must be current working directory!")
29 print("But in your case this is", cwd)
30 sys.exit()
31 entries1 = [entry for entry in os.listdir(cwd) if
32 entry.startswith("tdemo_") and
33 not entry.endswith(".pyc")]
34 entries2 = []
35 for entry in entries1:
36 if entry.endswith(".py"):
37 entries2.append(entry)
38 else:
39 path = os.path.join(cwd,entry)
40 sys.path.append(path)
41 subdir = [entry]
42 scripts = [script for script in os.listdir(path) if
43 script.startswith("tdemo_") and
44 script.endswith(".py")]
45 entries2.append(subdir+scripts)
46 return entries2
47
48def showDemoHelp():
49 view_file(demo.root, "Help on turtleDemo", "demohelp.txt")
50
51def showAboutDemo():
52 view_file(demo.root, "About turtleDemo", "about_turtledemo.txt")
53
54def showAboutTurtle():
55 view_file(demo.root, "About the new turtle module.", "about_turtle.txt")
56
57class DemoWindow(object):
58
59 def __init__(self, filename=None): #, root=None):
60 self.root = root = turtle._root = Tk()
61 root.wm_protocol("WM_DELETE_WINDOW", self._destroy)
62
63 #################
64 self.mBar = Frame(root, relief=RAISED, borderwidth=2)
65 self.mBar.pack(fill=X)
66
67 self.ExamplesBtn = self.makeLoadDemoMenu()
68 self.OptionsBtn = self.makeHelpMenu()
69 self.mBar.tk_menuBar(self.ExamplesBtn, self.OptionsBtn) #, QuitBtn)
70
71 root.title('Python turtle-graphics examples')
72 #################
73 self.left_frame = left_frame = Frame(root)
74 self.text_frame = text_frame = Frame(left_frame)
75 self.vbar = vbar =Scrollbar(text_frame, name='vbar')
76 self.text = text = Text(text_frame,
77 name='text', padx=5, wrap='none',
78 width=45)
79 vbar['command'] = text.yview
80 vbar.pack(side=LEFT, fill=Y)
81 #####################
82 self.hbar = hbar =Scrollbar(text_frame, name='hbar', orient=HORIZONTAL)
83 hbar['command'] = text.xview
84 hbar.pack(side=BOTTOM, fill=X)
85 #####################
86 text['yscrollcommand'] = vbar.set
87 text.config(font=txtfont)
88 text.config(xscrollcommand=hbar.set)
89 text.pack(side=LEFT, fill=Y, expand=1)
90 #####################
91 self.output_lbl = Label(left_frame, height= 1,text=" --- ", bg = "#ddf",
92 font = ("Arial", 16, 'normal'))
93 self.output_lbl.pack(side=BOTTOM, expand=0, fill=X)
94 #####################
95 text_frame.pack(side=LEFT, fill=BOTH, expand=0)
96 left_frame.pack(side=LEFT, fill=BOTH, expand=0)
97 self.graph_frame = g_frame = Frame(root)
98
99 turtle.Screen._root = g_frame
100 turtle.Screen._canvas = turtle.ScrolledCanvas(g_frame, 800, 600, 1000, 800)
101 #xturtle.Screen._canvas.pack(expand=1, fill="both")
102 self.screen = _s_ = turtle.Screen()
103#####
104 turtle.TurtleScreen.__init__(_s_, _s_._canvas)
105#####
106 self.scanvas = _s_._canvas
107 #xturtle.RawTurtle.canvases = [self.scanvas]
108 turtle.RawTurtle.screens = [_s_]
109
110 self.scanvas.pack(side=TOP, fill=BOTH, expand=1)
111
112 self.btn_frame = btn_frame = Frame(g_frame, height=100)
113 self.start_btn = Button(btn_frame, text=" START ", font=btnfont, fg = "white",
114 disabledforeground = "#fed", command=self.startDemo)
115 self.start_btn.pack(side=LEFT, fill=X, expand=1)
116 self.stop_btn = Button(btn_frame, text=" STOP ", font=btnfont, fg = "white",
117 disabledforeground = "#fed", command = self.stopIt)
118 self.stop_btn.pack(side=LEFT, fill=X, expand=1)
119 self.clear_btn = Button(btn_frame, text=" CLEAR ", font=btnfont, fg = "white",
120 disabledforeground = "#fed", command = self.clearCanvas)
121 self.clear_btn.pack(side=LEFT, fill=X, expand=1)
122
123 self.btn_frame.pack(side=TOP, fill=BOTH, expand=0)
124 self.graph_frame.pack(side=TOP, fill=BOTH, expand=1)
125
126 Percolator(text).insertfilter(ColorDelegator())
127 self.dirty = False
128 self.exitflag = False
129 if filename:
130 self.loadfile(filename)
131 self.configGUI(NORMAL, DISABLED, DISABLED, DISABLED,
132 "Choose example from menu", "black")
133 self.state = STARTUP
134
135 def _destroy(self):
136 self.root.destroy()
137 sys.exit()
138
139 def configGUI(self, menu, start, stop, clear, txt="", color="blue"):
140 self.ExamplesBtn.config(state=menu)
141
142 self.start_btn.config(state=start)
143 if start==NORMAL:
144 self.start_btn.config(bg="#d00")
145 else:
146 self.start_btn.config(bg="#fca")
147
148 self.stop_btn.config(state=stop)
149 if stop==NORMAL:
150 self.stop_btn.config(bg="#d00")
151 else:
152 self.stop_btn.config(bg="#fca")
153 self.clear_btn.config(state=clear)
154
155 self.clear_btn.config(state=clear)
156 if clear==NORMAL:
157 self.clear_btn.config(bg="#d00")
158 else:
159 self.clear_btn.config(bg="#fca")
160
161 self.output_lbl.config(text=txt, fg=color)
162
163
164 def makeLoadDemoMenu(self):
165 CmdBtn = Menubutton(self.mBar, text='Examples', underline=0, font=menufont)
166 CmdBtn.pack(side=LEFT, padx="2m")
167 CmdBtn.menu = Menu(CmdBtn)
168
169 for entry in getExampleEntries():
170 def loadexample(x):
171 def emit():
172 self.loadfile(x)
173 return emit
174 if isinstance(entry,str):
175 CmdBtn.menu.add_command(label=entry[6:-3], underline=0, font=menufont,
176 command=loadexample(entry))
177 else:
178 _dir, entries = entry[0], entry[1:]
179 CmdBtn.menu.choices = Menu(CmdBtn.menu)
180 for e in entries:
181 CmdBtn.menu.choices.add_command(label=e[6:-3], underline=0, font=menufont,
182 command = loadexample(os.path.join(_dir,e)))
183
184 CmdBtn.menu.add_cascade(label=_dir[6:],
185 menu = CmdBtn.menu.choices, font=menufont )
186
187 CmdBtn['menu'] = CmdBtn.menu
188 return CmdBtn
189
190
191 def makeHelpMenu(self):
192 CmdBtn = Menubutton(self.mBar, text='Help', underline=0, font = menufont)
193 CmdBtn.pack(side=LEFT, padx='2m')
194 CmdBtn.menu = Menu(CmdBtn)
195
196 CmdBtn.menu.add_command(label='About turtle.py', font=menufont, command=showAboutTurtle)
197 CmdBtn.menu.add_command(label='turtleDemo - Help', font=menufont, command=showDemoHelp)
198 CmdBtn.menu.add_command(label='About turtleDemo', font=menufont, command=showAboutDemo)
199
200 CmdBtn['menu'] = CmdBtn.menu
201 return CmdBtn
202
203 def refreshCanvas(self):
204 if not self.dirty: return
205 self.screen.clear()
206 #self.screen.mode("standard")
207 self.dirty=False
208
209 def loadfile(self,filename):
210 self.refreshCanvas()
211 if os.path.exists(filename) and not os.path.isdir(filename):
212 # load and display file text
213 f = open(filename,'r')
214 chars = f.read()
215 f.close()
216 self.text.delete("1.0", "end")
217 self.text.insert("1.0",chars)
218 direc, fname = os.path.split(filename)
219 self.root.title(fname[6:-3]+" - a Python turtle graphics example")
220 self.module = __import__(fname[:-3])
221 reload(self.module)
222 self.configGUI(NORMAL, NORMAL, DISABLED, DISABLED,
223 "Press start button", "red")
224 self.state = READY
225
226 def startDemo(self):
227 self.refreshCanvas()
228 self.dirty = True
229 turtle.TurtleScreen._RUNNING = True
230 self.configGUI(DISABLED, DISABLED, NORMAL, DISABLED,
231 "demo running...", "black")
232 self.screen.clear()
233 self.screen.mode("standard")
234 self.state = RUNNING
235
236 try:
237 result = self.module.main()
238 if result == "EVENTLOOP":
239 self.state = EVENTDRIVEN
240 else:
241 self.state = DONE
242 except turtle.Terminator:
243 self.state = DONE
244 result = "stopped!"
245 if self.state == DONE:
246 self.configGUI(NORMAL, NORMAL, DISABLED, NORMAL,
247 result)
248 elif self.state == EVENTDRIVEN:
249 self.exitflag = True
250 self.configGUI(DISABLED, DISABLED, NORMAL, DISABLED,
251 "use mouse/keys or STOP", "red")
252
253 def clearCanvas(self):
254 self.refreshCanvas()
255 self.screen._delete("all")
256 self.scanvas.config(cursor="")
257 self.configGUI(NORMAL, NORMAL, DISABLED, DISABLED)
258
259 def stopIt(self):
260 if self.exitflag:
261 self.clearCanvas()
262 self.exitflag = False
263 self.configGUI(NORMAL, NORMAL, DISABLED, DISABLED,
264 "STOPPED!", "red")
265 turtle.TurtleScreen._RUNNING = False
266 #print "stopIT: exitflag = True"
267 else:
268 turtle.TurtleScreen._RUNNING = False
269 #print "stopIt: exitflag = False"
270
271if __name__ == '__main__':
272 demo = DemoWindow()
273 RUN = True
274 while RUN:
275 try:
276 #print("ENTERING mainloop")
277 demo.root.mainloop()
278 except AttributeError:
279 #print("AttributeError!- WAIT A MOMENT!")
280 time.sleep(0.3)
281 print("GOING ON ..")
282 demo.ckearCanvas()
283 except TypeError:
284 demo.screen._delete("all")
285 #print("CRASH!!!- WAIT A MOMENT!")
286 time.sleep(0.3)
287 #print("GOING ON ..")
288 demo.clearCanvas()
289 except:
290 print("BYE!")
291 RUN = False