added template for tk applications and first sketch of canvas test
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tk_canvas/my_canvas.py
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68
tk_canvas/my_canvas.py
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import tkinter as tk
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import tkinter.ttk as ttk
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class Controller(object):
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def __init__(self, app):
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self.app = app
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self.selected = None
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self.selected_start = None
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self.selected_end = None
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def run_process(self):
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print("Run")
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self.app.main_canvas.bind('<1>', self.make_circle)
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self.app.main_canvas.bind('<3>', self.select_item)
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self.app.main_canvas.bind('<SHIFT-1>', self.select_for_line)
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return 0
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def make_circle(self, event):
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x = event.x
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y = event.y
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r = 20
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self.app.main_canvas.create_oval(x-r, y-r, x+r, y+r, fill="white", outline="black", tag="circle")
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def select_item(self, event):
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self.app.main_canvas.bind('<Motion>', self.move_item)
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self.app.main_canvas.bind('<1>', self.deselect_item)
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self.app.main_canvas.addtag_withtag('selected', tk.CURRENT)
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def deselect_item(self, event):
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self.app.main_canvas.dtag('selected')
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self.app.main_canvas.unbind('<Motion>')
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self.app.main_canvas.bind('<1>', self.make_circle)
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def move_item(self, event):
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x = event.x
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y = event.y
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r = 20
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self.app.main_canvas.coords("selected",x-r, y-r, x+r, y+r)
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def select_for_line(self, event):
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pass
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class Application(tk.Tk):
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def __init__(self):
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super().__init__()
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self.con = Controller(self)
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self.create_control_variables()
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self.create_widgets()
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def create_control_variables(self):
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pass
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def create_widgets(self):
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self.main_canvas = tk.Canvas(master=self, width=500, height=400, background='gray75')
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self.main_canvas.grid(row=0, column=0)
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self.b = ttk.Button(master=self, text="Start", command=self.con.run_process)
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self.b.grid(row=1, column=0)
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# --------------------------
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# Execution
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# --------------------------
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if __name__ == "__main__":
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app = Application()
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app.mainloop()
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32
tk_template.py
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32
tk_template.py
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import tkinter as tk
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import tkinter.ttk as ttk
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class Controller(object):
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def __init__(self, app):
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self.app = app
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def run_process(self):
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print("Run")
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return 0
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class Application(tk.Tk):
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def __init__(self):
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super().__init__()
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self.con = Controller(self)
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self.create_control_variables()
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self.create_widgets()
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def create_control_variables(self):
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pass
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def create_widgets(self):
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self.b = ttk.Button(master=self, text="Start", command=self.con.run_process)
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self.b.grid(row=1, column=0)
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# --------------------------
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# Execution
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# --------------------------
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if __name__ == "__main__":
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app = Application()
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app.mainloop()
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