On Fri, 14 Nov 2003 17:05:47 +0100
Felix K�hling <[EMAIL PROTECTED]> wrote:
> Hi pygtk experts,
>
> I want to modify the style of a widget temporarily and reset its
> default style later. I use modify_text to changed the text color of an
> entry. How can I reset it later? According to the gtk reference
> gtk_widget_modify_text(entry, state, NULL) will reset the color to the
> theme's default. However entry.modify_text(state, None) doesn't work.
> It complains that None is not a color. Using set_style(None) as
> suggested in the PythonGtk Tutorial doesn't work either. Styles set
> with modify_* aren't affected by this. Am I missing something or is
> the only way to do this in PyGTK to remember the default color
> somewhere before I modify it?
it looks that way. and, even if the task seems simple, I too didn't find
a handy function or set of functions in the docs.
most surprisingly: executing gtk.Widget.set_style() malfunctions
gtk.Widget.modify_text().
now with some digging and fiddling I found an accaptably elegant
solution - a working example is attached.
walter
#!/usr/bin/env python
try:
import pygtk; pygtk.require("2.0")
except:
pass
import gtk
class StyleExample:
def changeTextColor(self, entry, color):
entry.modify_text(gtk.STATE_NORMAL, color)
def __init__(self):
window = gtk.Window(gtk.WINDOW_TOPLEVEL)
window.connect("delete_event", gtk.mainquit)
vbox = gtk.VBox()
window.add(vbox)
entry = gtk.Entry(50)
entry.set_text("string")
vbox.add(entry)
# an gtk.Entry has a gtk.Style --> get it with (style =) entry.get_style()
# a gtk.Style has a "text"-attribute (read only) --> get it with (text =)
style.text
# that "text" is an array of gtk.gdk.Colors (with a __getitem__ method)
# --> get your color with text[0]
default_color = entry.get_style().text[0]
changed_color = gtk.gdk.Color(red=50000, green=0, blue=0, pixel=0)
button = gtk.Button("change style")
button.connect_object("clicked", self.changeTextColor, entry, changed_color)
vbox.add(button)
button = gtk.Button("reset style")
button.connect_object("clicked", self.changeTextColor, entry, default_color)
vbox.add(button)
window.show_all()
def main():
gtk.main()
return 0
if __name__ == "__main__":
StyleExample()
main()
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