# Version: 0.6
# Author: Miguel Martinez Lopez
# Uncomment the next line to see my email
# print ("Author's email: %s"% "61706c69636163696f6e616d656469646140676d61696c2e636f6d".decode("hex"))
import Tkinter as tk
import ttk
import platform
class ScrollingArea(object):
OS = platform.system()
def __init__(self, root, factor = 2):
self.activeArea = None
if type(factor) == int:
self.factor = factor
else:
raise Exception("Factor must be an integer.")
if self.OS == "Linux" :
root.bind_all('<4>', self.onMouseWheel, add='+')
root.bind_all('<5>', self.onMouseWheel, add='+')
else:
# Windows and MacOS
root.bind_all("<MouseWheel>", self.onMouseWheel, add='+')
def onMouseWheel(self,event):
if self.activeArea:
self.activeArea.onMouseWheel(event)
def mouseWheel_bind(self, widget):
self.activeArea = widget
def mouseWheel_unbind(self):
self.activeArea = None
def build_function_onMouseWheel(self, widget, orient, factor = 1):
view_command = getattr(widget, orient+'view')
if self.OS == 'Linux':
def onMouseWheel(event):
if event.num == 4:
view_command("scroll",(-1)*factor,"units" )
elif event.num == 5:
view_command("scroll",factor,"units" )
elif self.OS == 'Windows':
def onMouseWheel(event):
view_command("scroll",(-1)*int((event.delta/120)*factor),"units" )
elif self.OS == 'Darwin':
def onMouseWheel(event):
view_command("scroll",event.delta,"units" )
return onMouseWheel
def add_scrolling(self, scrollingArea, xscrollbar=None, yscrollbar=None):
if yscrollbar:
scrollingArea.configure(xscrollcommand=xscrollbar.set)
yscrollbar['command']=scrollingArea.yview
if xscrollbar:
scrollingArea.configure(yscrollcommand=yscrollbar.set)
xscrollbar['command']=scrollingArea.xview
scrollingArea.bind('<Enter>',lambda event: self.mouseWheel_bind(scrollingArea))
scrollingArea.bind('<Leave>', lambda event: self.mouseWheel_unbind())
if xscrollbar and not hasattr(xscrollbar, 'onMouseWheel'):
xscrollbar.onMouseWheel = self.build_function_onMouseWheel(scrollingArea,'x', self.factor)
if yscrollbar and not hasattr(yscrollbar, 'onMouseWheel'):
yscrollbar.onMouseWheel = self.build_function_onMouseWheel(scrollingArea,'y', self.factor)
main_scrollbar = yscrollbar or xscrollbar
if main_scrollbar:
scrollingArea.onMouseWheel = main_scrollbar.onMouseWheel
for scrollbar in (xscrollbar, yscrollbar):
if scrollbar:
scrollbar.bind('<Enter>', lambda event, scrollbar=scrollbar: self.mouseWheel_bind(scrollbar) )
scrollbar.bind('<Leave>', lambda event: self.mouseWheel_unbind())
if __name__== '__main__':
root = tk.Tk()
xScrollbar = ttk.Scrollbar(root, orient=tk.HORIZONTAL)
xScrollbar.grid(row=1, column=0, sticky= "ew")
yScrollbar = ttk.Scrollbar(root, orient=tk.VERTICAL)
yScrollbar.grid(row=0, column=1,sticky="ns")
canvas1 = tk.Canvas(root, width=300, height=100, highlightthickness=0)
canvas1.grid(row=0, column=0)
frameWindows= tk.Frame(canvas1)
frameWindows.pack()
for i in range(20):
rowFrame = tk.Frame(frameWindows)
rowFrame.pack()
for j in range(8):
tk.Label(rowFrame, text="Label %s, %s" % (str(i), str(j))).pack(side=tk.LEFT)
canvas1.create_window(0, 0, window=frameWindows, anchor='nw')
canvas1.update_idletasks()
canvas1['scrollregion'] = (0,0,frameWindows.winfo_reqwidth(), frameWindows.winfo_reqheight())
ScrollingArea(root).add_scrolling(canvas1, xscrollbar=xScrollbar, yscrollbar=yScrollbar)
root.mainloop()
Diff to Previous Revision
--- revision 10 2017-01-28 21:46:19
+++ revision 11 2017-03-16 12:31:41
@@ -1,4 +1,4 @@
-# Version: 0.5
+# Version: 0.6
# Author: Miguel Martinez Lopez
# Uncomment the next line to see my email
# print ("Author's email: %s"% "61706c69636163696f6e616d656469646140676d61696c2e636f6d".decode("hex"))
@@ -62,11 +62,11 @@
def add_scrolling(self, scrollingArea, xscrollbar=None, yscrollbar=None):
if yscrollbar:
- scrollingArea.configure(xscrollcommand=xScrollbar.set)
+ scrollingArea.configure(xscrollcommand=xscrollbar.set)
yscrollbar['command']=scrollingArea.yview
if xscrollbar:
- scrollingArea.configure(yscrollcommand=yScrollbar.set)
+ scrollingArea.configure(yscrollcommand=yscrollbar.set)
xscrollbar['command']=scrollingArea.xview
scrollingArea.bind('<Enter>',lambda event: self.mouseWheel_bind(scrollingArea))