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  • Committer: markino
  • Date: 2008-02-18 21:32:08 UTC
  • Revision ID: markino@casseruola-20080218213208-u59318mvs4tz6ycv
Modularized and Integrated with main trunk (rev27)

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status_label.py
 
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#!/usr/bin/env python
 
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#Includes the class for status label.
 
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import gobject
 
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import gtk
 
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class FadeLabel(gtk.Label):
 
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    """ GTK Label with timed fade out effect """
 
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    active_duration = 3000  # Fade start after this time
 
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    fade_duration = 1500.0  # Fade duration
 
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    def __init__(self, message='', active_color=None, inactive_color=None):
 
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        gtk.Label.__init__(self, message)
 
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        if not active_color:
 
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            active_color = '#ffffff'
 
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        self.active_color = active_color
 
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        if not inactive_color:
 
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            inactive_color = '#000000'
 
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        self.inactive_color = inactive_color
 
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        self.idle = 0
 
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    def set_text(self, message, duration=None):
 
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        if not duration:
 
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            duration = self.active_duration
 
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        self.modify_fg(gtk.STATE_NORMAL,
 
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                       gtk.gdk.color_parse(self.active_color))
 
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        gtk.Label.set_text(self, message)
 
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        if self.idle:
 
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            gobject.source_remove(self.idle)
 
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        self.idle = gobject.timeout_add(duration, self.fade_start)
 
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    def fade_start(self):
 
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        self.fade_level = 1.0
 
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        if self.idle:
 
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            gobject.source_remove(self.idle)
 
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        self.idle = gobject.timeout_add(25, self.fade_out)
 
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    def fade_out(self):
 
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        color = gtk.gdk.color_parse(self.inactive_color)
 
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        (red1, green1, blue1) = (color.red, color.green, color.blue)
 
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        color = gtk.gdk.color_parse(self.active_color)
 
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        (red2, green2, blue2) = (color.red, color.green, color.blue)
 
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        red = red1 + int(self.fade_level * abs(red1 - red2))
 
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        green = green1 + int(self.fade_level * abs(green1 - green2))
 
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        blue = blue1 + int(self.fade_level * abs(blue1 - blue2))
 
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        self.modify_fg(gtk.STATE_NORMAL, gtk.gdk.Color(red, green, blue))
 
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        self.fade_level -= 1.0 / (self.fade_duration / 25)
 
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        if self.fade_level > 0:
 
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            return True
 
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        self.idle = 0
 
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        return False
 
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# EOF