12 class CairoView(gtk.Window):
13 def __init__(self, family="", slant=0, weight=0, size=18, text="The Quick Brown Fox Jumps Over The Lazy Dog!"):
14 gtk.Widget.__init__ (self)
18 self.slant = cairo.FONT_SLANT_ITALIC
19 elif slant == "oblique":
20 self.slant = cairo.FONT_SLANT_OBLIQUE
22 self.slant = cairo.FONT_SLANT_NORMAL
24 self.weight = cairo.FONT_WEIGHT_BOLD
26 self.weight = cairo.FONT_WEIGHT_NORMAL
27 self.size = float (size)
31 self.set_flags(self.flags() | gtk.REALIZED)
33 self.window = gtk.gdk.Window(
34 self.get_parent_window(),
35 width=self.allocation.width,
36 height=self.allocation.height,
37 window_type=gtk.gdk.WINDOW_CHILD,
38 wclass=gtk.gdk.INPUT_OUTPUT,
39 event_mask=self.get_events() | gtk.gdk.EXPOSURE_MASK)
41 self.window.set_user_data(self)
43 self.style.attach(self.window)
45 self.style.set_background(self.window, gtk.STATE_NORMAL)
47 self.width, self.height = self.draw ()
48 self.window.move_resize(0, 0, self.width, self.height)
50 def do_unrealize(self):
53 def do_expose_event(self, event):
58 def draw(self, event = None):
60 cr = self.window.cairo_create()
62 cr.rectangle(event.area.x, event.area.y,
63 event.area.width, event.area.height)
66 cr.set_source_rgb (1, 1, 1)
69 cr.select_font_face (self.family, self.slant, self.weight)
70 cr.set_font_size (self.size)
74 extents = cr.text_extents (self.text)
75 cr.translate (PAD-extents[0], PAD-extents[1])
77 font_extents = cr.font_extents ()
78 cr.rectangle (0, -font_extents[0], extents[4], font_extents[2])
80 cr.line_to (extents[2]+PAD, 0)
81 cr.set_source_rgba (1, 0, 0, .7)
84 cr.rectangle (*extents[:4])
85 cr.set_source_rgba (0, 1, 0, .7)
89 cr.set_source_rgb (0, 0, 0)
90 cr.show_text (self.text)
92 return int (extents[2]) + 2 * PAD, int (extents[3]) + 2 * PAD
96 self.props.allow_shrink = True
97 self.connect("destroy", gtk.main_quit)
102 gobject.type_register(CairoView)
107 print "usage: cairo-view family [slant [weight [size [text]]]]"
109 cv= CairoView (*args[1:])
112 if __name__ == "__main__":