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#! /usr/bin/env python import sys import os from Tkinter import * from idlelib.Percolator import Percolator from idlelib.ColorDelegator import ColorDelegator from idlelib.textView import TextViewer import turtle import time STARTUP = 1 READY = 2 RUNNING = 3 DONE = 4 EVENTDRIVEN = 5 menufont = ("Arial", 12, NORMAL) btnfont = ("Arial", 12, 'bold') txtfont = ('Lucida Console', 8, 'normal') def getExampleEntries(): cwd = os.getcwd() if "turtleDemo.py" not in os.listdir(cwd): print "Directory of turtleDemo must be current working directory!" print "But in your case this is", cwd sys.exit() entries1 = [entry for entry in os.listdir(cwd) if entry.startswith("tdemo_") and not entry.endswith(".pyc")] entries2 = [] for entry in entries1: if entry.endswith(".py"): entries2.append(entry) else: path = os.path.join(cwd,entry) sys.path.append(path) subdir = [entry] scripts = [script for script in os.listdir(path) if script.startswith("tdemo_") and script.endswith(".py")] entries2.append(subdir+scripts) return entries2 def showDemoHelp(): TextViewer(demo.root, "Help on turtleDemo", "demohelp.txt") def showAboutDemo(): TextViewer(demo.root, "About turtleDemo", "about_turtledemo.txt") def showAboutTurtle(): TextViewer(demo.root, "About the new turtle module", "about_turtle.txt") class DemoWindow(object): def __init__(self, filename=None): #, root=None): self.root = root = turtle._root = Tk() root.wm_protocol("WM_DELETE_WINDOW", self._destroy) ################# self.mBar = Frame(root, relief=RAISED, borderwidth=2) self.mBar.pack(fill=X) self.ExamplesBtn = self.makeLoadDemoMenu() self.OptionsBtn = self.makeHelpMenu() self.mBar.tk_menuBar(self.ExamplesBtn, self.OptionsBtn) #, QuitBtn) root.title('Python turtle-graphics examples') ################# self.left_frame = left_frame = Frame(root) self.text_frame = text_frame = Frame(left_frame) self.vbar = vbar =Scrollbar(text_frame, name='vbar') self.text = text = Text(text_frame, name='text', padx=5, wrap='none', width=45) vbar['command'] = text.yview vbar.pack(side=LEFT, fill=Y) ##################### self.hbar = hbar =Scrollbar(text_frame, name='hbar', orient=HORIZONTAL) hbar['command'] = text.xview hbar.pack(side=BOTTOM, fill=X) ##################### text['yscrollcommand'] = vbar.set text.config(font=txtfont) text.config(xscrollcommand=hbar.set) text.pack(side=LEFT, fill=Y, expand=1) ##################### self.output_lbl = Label(left_frame, height= 1,text=" --- ", bg = "#ddf", font = ("Arial", 16, 'normal')) self.output_lbl.pack(side=BOTTOM, expand=0, fill=X) ##################### text_frame.pack(side=LEFT, fill=BOTH, expand=0) left_frame.pack(side=LEFT, fill=BOTH, expand=0) self.graph_frame = g_frame = Frame(root) turtle._Screen._root = g_frame turtle._Screen._canvas = turtle.ScrolledCanvas(g_frame, 800, 600, 1000, 800) #xturtle.Screen._canvas.pack(expand=1, fill="both") self.screen = _s_ = turtle.Screen() turtle.TurtleScreen.__init__(_s_, _s_._canvas) self.scanvas = _s_._canvas #xturtle.RawTurtle.canvases = [self.scanvas] turtle.RawTurtle.screens = [_s_] self.scanvas.pack(side=TOP, fill=BOTH, expand=1) self.btn_frame = btn_frame = Frame(g_frame, height=100) self.start_btn = Button(btn_frame, text=" START ", font=btnfont, fg = "white", disabledforeground = "#fed", command=self.startDemo) self.start_btn.pack(side=LEFT, fill=X, expand=1) self.stop_btn = Button(btn_frame, text=" STOP ", font=btnfont, fg = "white", disabledforeground = "#fed", command = self.stopIt) self.stop_btn.pack(side=LEFT, fill=X, expand=1) self.clear_btn = Button(btn_frame, text=" CLEAR ", font=btnfont, fg = "white", disabledforeground = "#fed", command = self.clearCanvas) self.clear_btn.pack(side=LEFT, fill=X, expand=1) self.btn_frame.pack(side=TOP, fill=BOTH, expand=0) self.graph_frame.pack(side=TOP, fill=BOTH, expand=1) Percolator(text).insertfilter(ColorDelegator()) self.dirty = False self.exitflag = False if filename: self.loadfile(filename) self.configGUI(NORMAL, DISABLED, DISABLED, DISABLED, "Choose example from menu", "black") self.state = STARTUP def _destroy(self): self.root.destroy() sys.exit() def configGUI(self, menu, start, stop, clear, txt="", color="blue"): self.ExamplesBtn.config(state=menu) self.start_btn.config(state=start) if start==NORMAL: self.start_btn.config(bg="#d00") else: self.start_btn.config(bg="#fca") self.stop_btn.config(state=stop) if stop==NORMAL: self.stop_btn.config(bg="#d00") else: self.stop_btn.config(bg="#fca") self.clear_btn.config(state=clear) self.clear_btn.config(state=clear) if clear==NORMAL: self.clear_btn.config(bg="#d00") else: self.clear_btn.config(bg="#fca") self.output_lbl.config(text=txt, fg=color) def makeLoadDemoMenu(self): CmdBtn = Menubutton(self.mBar, text='Examples', underline=0, font=menufont) CmdBtn.pack(side=LEFT, padx="2m") CmdBtn.menu = Menu(CmdBtn) for entry in getExampleEntries(): def loadexample(x): def emit(): self.loadfile(x) return emit if isinstance(entry,str): CmdBtn.menu.add_command(label=entry[6:-3], underline=0, font=menufont, command=loadexample(entry)) else: _dir, entries = entry[0], entry[1:] CmdBtn.menu.choices = Menu(CmdBtn.menu) for e in entries: CmdBtn.menu.choices.add_command(label=e[6:-3], underline=0, font=menufont, command = loadexample(os.path.join(_dir,e))) CmdBtn.menu.add_cascade(label=_dir[6:], menu = CmdBtn.menu.choices, font=menufont ) CmdBtn['menu'] = CmdBtn.menu return CmdBtn def makeHelpMenu(self): CmdBtn = Menubutton(self.mBar, text='Help', underline=0, font = menufont) CmdBtn.pack(side=LEFT, padx='2m') CmdBtn.menu = Menu(CmdBtn) CmdBtn.menu.add_command(label='About turtle.py', font=menufont, command=showAboutTurtle) CmdBtn.menu.add_command(label='turtleDemo - Help', font=menufont, command=showDemoHelp) CmdBtn.menu.add_command(label='About turtleDemo', font=menufont, command=showAboutDemo) CmdBtn['menu'] = CmdBtn.menu return CmdBtn def refreshCanvas(self): if not self.dirty: return self.screen.clear() #self.screen.mode("standard") self.dirty=False def loadfile(self,filename): self.refreshCanvas() if os.path.exists(filename) and not os.path.isdir(filename): # load and display file text f = open(filename,'r') chars = f.read() f.close() self.text.delete("1.0", "end") self.text.insert("1.0",chars) direc, fname = os.path.split(filename) self.root.title(fname[6:-3]+" - a Python turtle graphics example") self.module = __import__(fname[:-3]) reload(self.module) self.configGUI(NORMAL, NORMAL, DISABLED, DISABLED, "Press start button", "red") self.state = READY def startDemo(self): self.refreshCanvas() self.dirty = True turtle.TurtleScreen._RUNNING = True self.configGUI(DISABLED, DISABLED, NORMAL, DISABLED, "demo running...", "black") self.screen.clear() self.screen.mode("standard") self.state = RUNNING try: result = self.module.main() if result == "EVENTLOOP": self.state = EVENTDRIVEN else: self.state = DONE except turtle.Terminator: self.state = DONE result = "stopped!" if self.state == DONE: self.configGUI(NORMAL, NORMAL, DISABLED, NORMAL, result) elif self.state == EVENTDRIVEN: self.exitflag = True self.configGUI(DISABLED, DISABLED, NORMAL, DISABLED, "use mouse/keys or STOP", "red") def clearCanvas(self): self.refreshCanvas() self.scanvas.config(cursor="") self.configGUI(NORMAL, NORMAL, DISABLED, DISABLED) def stopIt(self): if self.exitflag: self.clearCanvas() self.exitflag = False self.configGUI(NORMAL, NORMAL, DISABLED, DISABLED, "STOPPED!", "red") turtle.TurtleScreen._RUNNING = False #print "stopIT: exitflag = True" else: turtle.TurtleScreen._RUNNING = False #print "stopIt: exitflag = False" if __name__ == '__main__': demo = DemoWindow() RUN = True while RUN: try: print "ENTERING mainloop" demo.root.mainloop() except AttributeError: print "CRASH!!!- WAIT A MOMENT!" time.sleep(0.3) print "GOING ON .." demo.refreshCanvas() ## time.sleep(1) except: RUN = FALSE