python - Resizing causes errors? -
i'm learning, slowly! part of code below question on here resizing objects in tkinter canvas. anyway aim make starting grid lights, learn more add ability of starting , stopping buttons or keys, want working visually. want fit perfect screen run on without changing code etc, when re size window starts adding circles in different places , getting me confused.
import tkinter import time class redraw(): def __init__(self): self._tk = tkinter.tk() self._myframe = tkinter.frame(master = self._tk) self._myframe.grid(row = 0, column = 0, sticky = tkinter.nsew) self._mycanvas = tkinter.canvas(master = self._tk, width = 850, height = 400, bg = 'grey', highlightthickness = 0) self._mycanvas.grid(row = 0, column = 0, sticky = tkinter.nsew) self._mycanvas.bind("<configure>", self._on_resize) self._tk.rowconfigure(0, weight = 1) self._tk.columnconfigure(0, weight = 1) self.fracx = 1 self.fracy = 1 self._oval1 = self._mycanvas.create_oval(50*self.fracx,50*self.fracy,160*self.fracx,160*self.fracy, fill="black", tags = 'oval1') self._oval2 = self._mycanvas.create_oval(210*self.fracx,50*self.fracy,320*self.fracx,160*self.fracy, fill="black", tags = 'oval2') self._oval3 = self._mycanvas.create_oval(370*self.fracx,50*self.fracy,480*self.fracx,160*self.fracy, fill="black", tags = 'oval3') self._oval4 = self._mycanvas.create_oval(530*self.fracx,50*self.fracy,640*self.fracx,160*self.fracy, fill="black", tags = 'oval4') self._oval5 = self._mycanvas.create_oval(690*self.fracx,50*self.fracy,800*self.fracx,160*self.fracy, fill="black", tags = 'oval5') def _on_resize(self, event): self._mycanvas.delete(tkinter.all) self.fracx = event.width/850 self.fracy = event.height/400 self._oval1 = self._mycanvas.create_oval(50*self.fracx,50*self.fracy,160*self.fracx,160*self.fracy, fill="black", tags = 'oval1') self._oval2 = self._mycanvas.create_oval(210*self.fracx,50*self.fracy,320*self.fracx,160*self.fracy, fill="black", tags = 'oval2') self._oval3 = self._mycanvas.create_oval(370*self.fracx,50*self.fracy,480*self.fracx,160*self.fracy, fill="black", tags = 'oval3') self._oval4 = self._mycanvas.create_oval(530*self.fracx,50*self.fracy,640*self.fracx,160*self.fracy, fill="black", tags = 'oval4') self._oval5 = self._mycanvas.create_oval(690*self.fracx,50*self.fracy,800*self.fracx,160*self.fracy, fill="black", tags = 'oval5') def main(): canvas = redraw() # widgets canvas def red0(a): in range(a): canvas._mycanvas.delete('oval1') canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval1') canvas._tk.update() time.sleep(0.05) def red1(a): in range(a): canvas._mycanvas.delete('oval1') canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval1') canvas._mycanvas.delete('oval2') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval2') canvas._tk.update() time.sleep(0.05) def red2(a): in range(a): canvas._mycanvas.delete('oval1') canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval1') canvas._mycanvas.delete('oval2') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval2') canvas._mycanvas.delete('oval3') canvas._oval3 = canvas._mycanvas.create_oval(370*canvas.fracx,50*canvas.fracy,480*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval3') canvas._tk.update() time.sleep(0.05) def red3(a): in range(a): canvas._mycanvas.delete('oval1') canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval1') canvas._mycanvas.delete('oval2') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval2') canvas._mycanvas.delete('oval3') canvas._oval3 = canvas._mycanvas.create_oval(370*canvas.fracx,50*canvas.fracy,480*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval3') canvas._mycanvas.delete('oval4') canvas._oval4 = canvas._mycanvas.create_oval(530*canvas.fracx,50*canvas.fracy,640*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval4') canvas._tk.update() time.sleep(0.05) def red4(a): in range(a): canvas._mycanvas.delete('oval5') canvas._oval5 = canvas._mycanvas.create_oval(690*canvas.fracx,50*canvas.fracy,800*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval5') canvas._tk.update() time.sleep(0.05) def green(a): in range(a): canvas._mycanvas.delete(tkinter.all) canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="green", tags = 'oval1') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="green", tags = 'oval2') canvas._oval3 = canvas._mycanvas.create_oval(370*canvas.fracx,50*canvas.fracy,480*canvas.fracx,160*canvas.fracy, fill="green", tags = 'oval3') canvas._oval4 = canvas._mycanvas.create_oval(530*canvas.fracx,50*canvas.fracy,640*canvas.fracx,160*canvas.fracy, fill="green", tags = 'oval4') canvas._oval5 = canvas._mycanvas.create_oval(690*canvas.fracx,50*canvas.fracy,800*canvas.fracx,160*canvas.fracy, fill="green", tags = 'oval5') canvas._tk.update() time.sleep(0.05) def amber(a): in range(a): canvas._mycanvas.delete(tkinter.all) canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="yellow", tags = 'oval1') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="yellow", tags = 'oval2') canvas._oval3 = canvas._mycanvas.create_oval(370*canvas.fracx,50*canvas.fracy,480*canvas.fracx,160*canvas.fracy, fill="yellow", tags = 'oval3') canvas._oval4 = canvas._mycanvas.create_oval(530*canvas.fracx,50*canvas.fracy,640*canvas.fracx,160*canvas.fracy, fill="yellow", tags = 'oval4') canvas._oval5 = canvas._mycanvas.create_oval(690*canvas.fracx,50*canvas.fracy,800*canvas.fracx,160*canvas.fracy, fill="yellow", tags = 'oval5') canvas._tk.update() time.sleep(0.05) def lights1(a): in range(a): canvas._mycanvas.delete(tkinter.all) canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval1') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval2') canvas._oval3 = canvas._mycanvas.create_oval(370*canvas.fracx,50*canvas.fracy,480*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval3') canvas._oval4 = canvas._mycanvas.create_oval(530*canvas.fracx,50*canvas.fracy,640*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval4') canvas._oval5 = canvas._mycanvas.create_oval(690*canvas.fracx,50*canvas.fracy,800*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval5') canvas._tk.update() time.sleep(0.05) def lights(): canvas._mycanvas.delete(tkinter.all) canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval1') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval2') canvas._oval3 = canvas._mycanvas.create_oval(370*canvas.fracx,50*canvas.fracy,480*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval3') canvas._oval4 = canvas._mycanvas.create_oval(530*canvas.fracx,50*canvas.fracy,640*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval4') canvas._oval5 = canvas._mycanvas.create_oval(690*canvas.fracx,50*canvas.fracy,800*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval5') canvas._tk.update() # tag of drawn widgets def flashing(): global flag flag=1 while flag: if flag == 1: lights1(9) amber(10) lights() def stop(): global flag flag = 2 while flag: if flag == 2: lights() def start(): global flag flag = 3 while flag: if flag == 3: lights() red0(30) red1(30) red2(30) red3(30) red4(30) green(30) lights() break canvas._but1 = tkinter.button(text="start", command=start) canvas._but1.grid(row = 2, column = 0, sticky="w") canvas._but2 = tkinter.button(text="amber", command=flashing) canvas._but2.grid(row = 2, sticky="w", padx=(80)) canvas._but1 = tkinter.button(text="stop", command=stop) canvas._but1.grid(row = 2, column = 0, sticky="w", padx=(40)) if __name__ == "__main__": main() re re edited sorted of problems still think it's rather messy still getting loads of errors
import tkinter import time class redraw(): def __init__(self): self._tk = tkinter.tk() self._myframe = tkinter.frame(master = self._tk) self._myframe.grid(row = 0, column = 0, sticky = tkinter.nsew) self._mycanvas = tkinter.canvas(master = self._tk, width = 850, height = 400, bg = 'grey', highlightthickness = 0) self._mycanvas.grid(row = 0, column = 0, sticky = tkinter.nsew) self._mycanvas.bind("<configure>", self._on_resize) self._tk.rowconfigure(0, weight = 1) self._tk.columnconfigure(0, weight = 1) self.fracx = 1 self.fracy = 1 self._oval1 = self._mycanvas.create_oval(50*self.fracx,50*self.fracy,160*self.fracx,160*self.fracy, fill="black", tags = 'oval1') self._oval2 = self._mycanvas.create_oval(210*self.fracx,50*self.fracy,320*self.fracx,160*self.fracy, fill="black", tags = 'oval2') self._oval3 = self._mycanvas.create_oval(370*self.fracx,50*self.fracy,480*self.fracx,160*self.fracy, fill="black", tags = 'oval3') self._oval4 = self._mycanvas.create_oval(530*self.fracx,50*self.fracy,640*self.fracx,160*self.fracy, fill="black", tags = 'oval4') self._oval5 = self._mycanvas.create_oval(690*self.fracx,50*self.fracy,800*self.fracx,160*self.fracy, fill="black", tags = 'oval5') def _on_resize(self, event): self._mycanvas.delete(tkinter.all) self.fracx = event.width/850 self.fracy = event.height/400 self._oval1 = self._mycanvas.create_oval(50*self.fracx,50*self.fracy,160*self.fracx,160*self.fracy, fill="black", tags = 'oval1') self._oval2 = self._mycanvas.create_oval(210*self.fracx,50*self.fracy,320*self.fracx,160*self.fracy, fill="black", tags = 'oval2') self._oval3 = self._mycanvas.create_oval(370*self.fracx,50*self.fracy,480*self.fracx,160*self.fracy, fill="black", tags = 'oval3') self._oval4 = self._mycanvas.create_oval(530*self.fracx,50*self.fracy,640*self.fracx,160*self.fracy, fill="black", tags = 'oval4') self._oval5 = self._mycanvas.create_oval(690*self.fracx,50*self.fracy,800*self.fracx,160*self.fracy, fill="black", tags = 'oval5') def main(): canvas = redraw() # widgets canvas def red0(a): in range(a): canvas._mycanvas.delete('oval1') canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval1') canvas._tk.update() time.sleep(0.05) def red1(a): in range(a): canvas._mycanvas.delete('oval1') canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval1') canvas._mycanvas.delete('oval2') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval2') canvas._tk.update() time.sleep(0.05) def red2(a): in range(a): canvas._mycanvas.delete('oval1') canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval1') canvas._mycanvas.delete('oval2') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval2') canvas._mycanvas.delete('oval3') canvas._oval3 = canvas._mycanvas.create_oval(370*canvas.fracx,50*canvas.fracy,480*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval3') canvas._tk.update() time.sleep(0.05) def red3(a): in range(a): canvas._mycanvas.delete('oval1') canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval1') canvas._mycanvas.delete('oval2') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval2') canvas._mycanvas.delete('oval3') canvas._oval3 = canvas._mycanvas.create_oval(370*canvas.fracx,50*canvas.fracy,480*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval3') canvas._mycanvas.delete('oval4') canvas._oval4 = canvas._mycanvas.create_oval(530*canvas.fracx,50*canvas.fracy,640*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval4') canvas._tk.update() time.sleep(0.05) def red4(a): in range(a): canvas._mycanvas.delete('oval5') canvas._oval5 = canvas._mycanvas.create_oval(690*canvas.fracx,50*canvas.fracy,800*canvas.fracx,160*canvas.fracy, fill="red", tags = 'oval5') canvas._tk.update() time.sleep(0.05) def green(a): in range(a): canvas._mycanvas.delete(tkinter.all) canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="green", tags = 'oval1') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="green", tags = 'oval2') canvas._oval3 = canvas._mycanvas.create_oval(370*canvas.fracx,50*canvas.fracy,480*canvas.fracx,160*canvas.fracy, fill="green", tags = 'oval3') canvas._oval4 = canvas._mycanvas.create_oval(530*canvas.fracx,50*canvas.fracy,640*canvas.fracx,160*canvas.fracy, fill="green", tags = 'oval4') canvas._oval5 = canvas._mycanvas.create_oval(690*canvas.fracx,50*canvas.fracy,800*canvas.fracx,160*canvas.fracy, fill="green", tags = 'oval5') canvas._tk.update() time.sleep(0.05) def lights(): canvas._mycanvas.delete(tkinter.all) canvas._oval1 = canvas._mycanvas.create_oval(50*canvas.fracx,50*canvas.fracy,160*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval1') canvas._oval2 = canvas._mycanvas.create_oval(210*canvas.fracx,50*canvas.fracy,320*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval2') canvas._oval3 = canvas._mycanvas.create_oval(370*canvas.fracx,50*canvas.fracy,480*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval3') canvas._oval4 = canvas._mycanvas.create_oval(530*canvas.fracx,50*canvas.fracy,640*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval4') canvas._oval5 = canvas._mycanvas.create_oval(690*canvas.fracx,50*canvas.fracy,800*canvas.fracx,160*canvas.fracy, fill="black", tags = 'oval5') canvas._tk.update() # tag of drawn widgets in range(20): lights() red0(30) red1(30) red2(30) red3(30) red4(30) green(30) lights() if __name__ == "__main__": main() so fix code , works now, check out! problem code though resized canvas in class resizingcanvas (which worked fine), in main() function, still keep creating new ovals inside resized canvas @ specific places.
moreover, think better if create whole tkinter application object since can control object more , making methods or attributes data. therefore, in fixed code, put whole tkinter.tk() object redraw() class. then, create ovals inside class , put tags each of them, can delete ovals want later on in main() function. code , ask me if don't understand it!
p/s: i'd prefer using .grid() instead of .pack() since better tool resizing windows , easier arrange interface!
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