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custom border.py
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custom border.py
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import tkinter as tk
class GradientFrame(tk.Canvas):
'''A gradient frame which uses a canvas to draw the background'''
def __init__(self, parent, borderwidth=1, relief="sunken"):
tk.Canvas.__init__(self, parent, borderwidth=borderwidth, relief=relief)
self._color1 = "red"
self._color2 = "black"
self.bind("<Configure>", self._draw_gradient)
def _draw_gradient(self, event=None):
'''Draw the gradient'''
self.delete("gradient")
width = self.winfo_width()
height = self.winfo_height()
limit = width
(r1,g1,b1) = self.winfo_rgb(self._color1)
(r2,g2,b2) = self.winfo_rgb(self._color2)
r_ratio = float(r2-r1) / limit
g_ratio = float(g2-g1) / limit
b_ratio = float(b2-b1) / limit
for i in range(limit):
nr = int(r1 + (r_ratio * i))
ng = int(g1 + (g_ratio * i))
nb = int(b1 + (b_ratio * i))
color = "#%4.4x%4.4x%4.4x" % (nr,ng,nb)
self.create_line(i,0,i,height, tags=("gradient",), fill=color)
self.lower("gradient")
class SampleApp(tk.Tk):
def __init__(self):
tk.Tk.__init__(self)
self.wm_overrideredirect(True)
gradient_frame = GradientFrame(self)
gradient_frame.pack(side="top", fill="both", expand=True)
inner_frame = tk.Frame(gradient_frame)
inner_frame.pack(side="top", fill="both", expand=True, padx=8, pady=(16,8))
b1 = tk.Button(inner_frame, text="Close",command=self.destroy)
t1 = tk.Text(inner_frame, width=40, height=10)
b1.pack(side="top")
t1.pack(side="top", fill="both", expand=True)
lastClickX = 0
lastClickY = 0
def SaveLastClickPos(event):
global lastClickX, lastClickY
lastClickX = event.x
lastClickY = event.y
def Dragging(event):
x, y = event.x - lastClickX + app.winfo_x(), event.y - lastClickY + \
app.winfo_y()
app.geometry("+%s+%s" % (x, y))
if __name__ == "__main__":
app = SampleApp()
app.bind('<Button-1>', SaveLastClickPos)
app.bind('<B1-Motion>', Dragging)
app.mainloop()