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PyGtk widget that displays color swatches according you your Gtk theme
#!/usr/bin/env python
# gtk-theme-swatch: A PyGtk widget that displays the color swatches of all
# gtk.Styles, in all states. Useful for designing themes
# author: John Stowers <john.stowers@gmail.com>
import gtk
class ThemeSwatch(gtk.DrawingArea):
SWATCH_SIZE = 50 #swatch size
SWATCH_GAP = 5 #gap
SWATCH_LABEL_SIZE = 10 #text size
STYLES = (
"fg",
"bg",
"light",
"dark",
"mid",
"text",
"base",
"text_aa"
)
STYLE_STATES = {
gtk.STATE_NORMAL:"normal",
gtk.STATE_ACTIVE:"active",
gtk.STATE_PRELIGHT:"prelight",
gtk.STATE_SELECTED:"selected",
gtk.STATE_INSENSITIVE:"insensitive"
}
def __init__(self):
gtk.DrawingArea.__init__(self)
self.connect("expose_event", self.expose)
@classmethod
def get_min_size(cls):
w = (1+len(cls.STYLE_STATES))*(cls.SWATCH_SIZE + cls.SWATCH_GAP)
h = (1+len(cls.STYLES))*(cls.SWATCH_SIZE + cls.SWATCH_GAP)
return w,h
def color_to_cairo_rgba(self, c, a=1):
return c.red/65535.0, c.green/65535.0, c.blue/65535.0, a
def draw_rect(self, x, y, w, h, color):
cr = self.context
cr.rectangle(x, y, w, h)
cr.set_source_rgba(
*self.color_to_cairo_rgba(color)
)
cr.fill()
def draw_round_rect(self, x, y, w, h, color, r=15):
cr = self.context
cr.set_source_rgba(
*self.color_to_cairo_rgba(color)
)
cr.move_to(x+r,y)
cr.line_to(x+w-r,y); cr.curve_to(x+w,y,x+w,y,x+w,y+r)
cr.line_to(x+w,y+h-r); cr.curve_to(x+w,y+h,x+w,y+h,x+w-r,y+h)
cr.line_to(x+r,y+h); cr.curve_to(x,y+h,x,y+h,x,y+h-r)
cr.line_to(x,y+r); cr.curve_to(x,y,x,y,x+r,y)
cr.close_path()
cr.fill()
def expose(self, widget, event):
self.context = widget.window.cairo_create()
# set a clip region for the expose event
self.context.rectangle(event.area.x, event.area.y,
event.area.width, event.area.height)
self.context.clip()
self.draw()
return False
def draw(self):
cr = self.context
rect = self.get_allocation()
s = self.SWATCH_SIZE #swatch size
g = self.SWATCH_GAP #gap
t = self.SWATCH_LABEL_SIZE #text size
x = rect.x+g
y = rect.y
#draw style state labels, x axis
#cr.rotate(-30)
cr.set_font_size(t)
for state,name in self.STYLE_STATES.items():
cr.set_source_rgb(0, 0, 0)
cr.move_to(x+0.5, y+s/2+t/2)
cr.show_text(name)
x += g+s
#cr.rotate(30)
y += s
x = rect.x+g
for name in self.STYLES:
colors = getattr(self.style, name, None)
if colors:
for state in self.STYLE_STATES:
color = colors[state]
#self.draw_rect(x, y, s, s, color)
self.draw_round_rect(x, y, s, s, color)
print "[%7s,%11s]" % (name, self.STYLE_STATES[state]) ,
x += g+s
#draw style labels, y axis
cr.set_source_rgb(0, 0, 0)
cr.move_to(x+g, y+s/2+t/2)
cr.show_text(name)
x = rect.x+g
y += g+s
print ""
def main():
window = gtk.Window()
theme = ThemeSwatch()
window.set_size_request(
*theme.get_min_size()
)
window.add(theme)
window.connect("destroy", gtk.main_quit)
window.show_all()
gtk.main()
if __name__ == "__main__":
main()
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