2 * empathy-rounded-rectangle.c - Source for EmpathyRoundedRectangle
3 * Copyright (C) 2011 Collabora Ltd.
4 * @author Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #include <clutter/clutter.h>
27 #include "empathy-rounded-rectangle.h"
29 G_DEFINE_TYPE (EmpathyRoundedRectangle,
30 empathy_rounded_rectangle,
31 CLUTTER_TYPE_CAIRO_TEXTURE)
33 struct _EmpathyRoundedRectanglePriv
36 ClutterColor border_color;
42 draw_cb (ClutterCairoTexture *canvas,
45 EmpathyRoundedRectangle *self = EMPATHY_ROUNDED_RECTANGLE (canvas);
51 width = self->priv->width;
52 height = self->priv->height;
53 radius = self->priv->height / self->priv->round_factor;
54 border_width = self->priv->border_width;
56 /* compute the composited opacity of the actor taking into
57 * account the opacity of the color set by the user */
58 tmp_alpha = (clutter_actor_get_paint_opacity (CLUTTER_ACTOR (self))
59 * self->priv->border_color.alpha) / 255.;
61 cairo_set_source_rgba (cr,
62 self->priv->border_color.red / 255.,
63 self->priv->border_color.green / 255.,
64 self->priv->border_color.blue / 255.,
67 cairo_set_line_width (cr, border_width);
69 cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
71 cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
73 /* make room for the portion of the border drawn on the outside */
74 cairo_translate (cr, border_width/2.0, border_width/2.0);
76 cairo_new_sub_path (cr);
77 cairo_arc (cr, width - radius, radius, radius,
79 cairo_arc (cr, width - radius, height - radius, radius,
81 cairo_arc (cr, radius, height - radius, radius,
83 cairo_arc (cr, radius, radius, radius,
85 cairo_close_path (cr);
93 empathy_rounded_rectangle_init (EmpathyRoundedRectangle *self)
95 self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
96 EMPATHY_TYPE_ROUNDED_RECTANGLE, EmpathyRoundedRectanglePriv);
98 self->priv->border_width = 1;
99 self->priv->round_factor = 2;
103 empathy_rounded_rectangle_finalize (GObject *object)
105 G_OBJECT_CLASS (empathy_rounded_rectangle_parent_class)->finalize (object);
109 empathy_rounded_rectangle_class_init (EmpathyRoundedRectangleClass *klass)
111 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
113 gobject_class->finalize = empathy_rounded_rectangle_finalize;
115 g_type_class_add_private (klass, sizeof (EmpathyRoundedRectanglePriv));
119 empathy_rounded_rectangle_update_surface_size (EmpathyRoundedRectangle *self)
121 clutter_cairo_texture_set_surface_size (CLUTTER_CAIRO_TEXTURE (self),
122 self->priv->width + self->priv->border_width,
123 self->priv->height + self->priv->border_width);
126 EmpathyRoundedRectangle *
127 empathy_rounded_rectangle_new (guint width,
131 EmpathyRoundedRectangle *self;
133 self = EMPATHY_ROUNDED_RECTANGLE (g_object_new (EMPATHY_TYPE_ROUNDED_RECTANGLE, NULL));
135 self->priv->width = width;
136 self->priv->height = height;
137 self->priv->round_factor = round_factor;
139 g_signal_connect (self, "draw", G_CALLBACK (draw_cb), NULL);
141 empathy_rounded_rectangle_update_surface_size (self);
142 clutter_cairo_texture_invalidate (CLUTTER_CAIRO_TEXTURE (self));
148 empathy_rounded_rectangle_set_border_width (EmpathyRoundedRectangle *self,
151 self->priv->border_width = border_width;
153 empathy_rounded_rectangle_update_surface_size (self);
154 clutter_cairo_texture_invalidate (CLUTTER_CAIRO_TEXTURE (self));
158 empathy_rounded_rectangle_set_border_color (EmpathyRoundedRectangle *self,
159 const ClutterColor *color)
161 self->priv->border_color = *color;
163 clutter_cairo_texture_invalidate (CLUTTER_CAIRO_TEXTURE (self));