# Author: Miguel Martinez Lopez
try:
from Tkinter import Label
from ttk import Style
from tkFont import Font, nametofont
except ImportError:
from tkinter import Label
from tkinter.ttk import Style
from tkinter.font import Font, nametofont
def get_background_of_widget(widget):
try:
# We assume first tk widget
background = widget.cget("background")
except:
# Otherwise this is a ttk widget
style = widget.cget("style")
if style == "":
# if there is not style configuration option, default style is the same than widget class
style = widget.winfo_class()
background = Style().lookup(style, 'background')
return background
class Link_Button(Label, object):
def __init__(self, master, text, background=None, font=None, familiy=None, size=None, underline=True, visited_fg = "#551A8B", normal_fg = "#0000EE", visited=False, action=None):
self._visited_fg = visited_fg
self._normal_fg = normal_fg
if visited:
fg = self._visited_fg
else:
fg = self._normal_fg
if font is None:
default_font = nametofont("TkDefaultFont")
family = default_font.cget("family")
if size is None:
size = default_font.cget("size")
font = Font(family=family, size=size, underline=underline)
Label.__init__(self, master, text=text, fg=fg, cursor="hand2", font=font)
if background is None:
background = get_background_of_widget(master)
self.configure(background=background)
self._visited = visited
self._action = action
self.bind("<Button-1>", self._on_click)
@property
def visited(self):
return self._visited
@visited.setter
def visited(self, is_visited):
if is_visited:
self.configure(fg=self._visited_fg)
self._visited = True
else:
self.configure(fg=self._normal_fg)
self._visited = False
def _on_click(self, event):
if not self._visited:
self.configure(fg=self._visited_fg)
self._visited = True
if self._action:
self._action()
if __name__ == "__main__":
import webbrowser
try:
from Tkinter import Tk, Frame
except ImportError:
from tkinter import Tk, Frame
def callback():
webbrowser.open_new(r"http://www.google.com")
root = Tk()
frame = Frame(root, bg="white")
frame.pack(expand=True, fill="both")
link = Link_Button(frame, text="Google Hyperlink", action=callback)
link.pack(padx=10, pady=10)
root.mainloop()
Diff to Previous Revision
--- revision 5 2017-04-04 12:30:59
+++ revision 6 2017-04-07 11:51:26
@@ -8,6 +8,22 @@
from tkinter import Label
from tkinter.ttk import Style
from tkinter.font import Font, nametofont
+
+def get_background_of_widget(widget):
+ try:
+ # We assume first tk widget
+ background = widget.cget("background")
+ except:
+ # Otherwise this is a ttk widget
+ style = widget.cget("style")
+
+ if style == "":
+ # if there is not style configuration option, default style is the same than widget class
+ style = widget.winfo_class()
+
+ background = Style().lookup(style, 'background')
+
+ return background
class Link_Button(Label, object):
def __init__(self, master, text, background=None, font=None, familiy=None, size=None, underline=True, visited_fg = "#551A8B", normal_fg = "#0000EE", visited=False, action=None):
@@ -31,22 +47,7 @@
Label.__init__(self, master, text=text, fg=fg, cursor="hand2", font=font)
if background is None:
- # If background is None, we get background of parent window
- parent_name = self.winfo_parent()
- widget = self.nametowidget(parent_name)
-
- try:
- # We assume first that container is a tk frame
- background = widget.cget("background")
- except:
- # Otherwise this is a ttk frame
- style = widget.cget("style")
-
- if style == "":
- # if there is not style configuration option, default style is the same than widget class
- style = widget.winfo_class()
-
- background = Style().lookup(style, 'background')
+ background = get_background_of_widget(master)
self.configure(background=background)
