Patch #3064: Port new turtle module and demos to 3.0.
diff --git a/Demo/turtle/turtleDemo.py b/Demo/turtle/turtleDemo.py
new file mode 100644
index 0000000..a454382
--- /dev/null
+++ b/Demo/turtle/turtleDemo.py
@@ -0,0 +1,291 @@
+#!/usr/bin/python
+import sys
+import os
+
+from tkinter import *
+from idlelib.Percolator import Percolator
+from idlelib.ColorDelegator import ColorDelegator
+from idlelib.textView import view_file # TextViewer
+from imp import reload
+
+from tkinter 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()
+ #print(cwd, os.listdir(cwd))
+ 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():
+ view_file(demo.root, "Help on turtleDemo", "demohelp.txt")
+
+def showAboutDemo():
+ view_file(demo.root, "About turtleDemo", "about_turtledemo.txt")
+
+def showAboutTurtle():
+ view_file(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.screen._delete("all")
+ 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("AttributeError!- WAIT A MOMENT!")
+ time.sleep(0.3)
+ print("GOING ON ..")
+ demo.ckearCanvas()
+ except TypeError:
+ demo.screen._delete("all")
+ #print("CRASH!!!- WAIT A MOMENT!")
+ time.sleep(0.3)
+ #print("GOING ON ..")
+ demo.clearCanvas()
+ except:
+ print("BYE!")
+ RUN = False