1 | |
2 | /* |
3 | * Copyright © 2015 Endless Mobile, Inc. |
4 | * |
5 | * This library is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU Lesser General Public |
7 | * License as published by the Free Software Foundation; either |
8 | * version 2.1 of the License, or (at your option) any later version. |
9 | * |
10 | * This library is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * Lesser General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU Lesser General Public |
16 | * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
17 | * |
18 | * Authors: Cosimo Cecchi <cosimoc@gnome.org> |
19 | */ |
20 | |
21 | #include "config.h" |
22 | |
23 | #include "gtkcssnodeprivate.h" |
24 | #include "gtkcssnumbervalueprivate.h" |
25 | #include "gtkbuiltiniconprivate.h" |
26 | #include "gtkwidgetprivate.h" |
27 | #include "gtkrendericonprivate.h" |
28 | #include "gtksnapshot.h" |
29 | |
30 | /* GtkBuiltinIcon was a minimal widget wrapped around a GtkBuiltinIcon gadget, |
31 | * It should be used whenever builtin-icon functionality is desired |
32 | * but a widget is needed for other reasons. |
33 | */ |
34 | |
35 | struct _GtkBuiltinIcon |
36 | { |
37 | GtkWidget parent; |
38 | }; |
39 | |
40 | G_DEFINE_TYPE (GtkBuiltinIcon, gtk_builtin_icon, GTK_TYPE_WIDGET) |
41 | |
42 | static void |
43 | gtk_builtin_icon_snapshot (GtkWidget *widget, |
44 | GtkSnapshot *snapshot) |
45 | { |
46 | GtkCssStyle *style = gtk_css_node_get_style (cssnode: gtk_widget_get_css_node (widget)); |
47 | int width, height; |
48 | |
49 | width = gtk_widget_get_width (widget); |
50 | height = gtk_widget_get_height (widget); |
51 | |
52 | if (width > 0 && height > 0) |
53 | gtk_css_style_snapshot_icon (style, snapshot, width, height); |
54 | } |
55 | |
56 | static void |
57 | gtk_builtin_icon_css_changed (GtkWidget *widget, |
58 | GtkCssStyleChange *change) |
59 | { |
60 | GTK_WIDGET_CLASS (gtk_builtin_icon_parent_class)->css_changed (widget, change); |
61 | |
62 | if (change == NULL || |
63 | gtk_css_style_change_affects (change, affects: GTK_CSS_AFFECTS_ICON_SIZE)) |
64 | { |
65 | gtk_widget_queue_resize (widget); |
66 | } |
67 | else if (gtk_css_style_change_affects (change, affects: GTK_CSS_AFFECTS_ICON_TEXTURE | |
68 | GTK_CSS_AFFECTS_ICON_REDRAW)) |
69 | { |
70 | gtk_widget_queue_draw (widget); |
71 | } |
72 | } |
73 | |
74 | static void |
75 | gtk_builtin_icon_measure (GtkWidget *widget, |
76 | GtkOrientation orientation, |
77 | int for_size, |
78 | int *minimum, |
79 | int *natural, |
80 | int *minimum_baseline, |
81 | int *natural_baseline) |
82 | { |
83 | GtkCssStyle *style; |
84 | |
85 | style = gtk_css_node_get_style (cssnode: gtk_widget_get_css_node (widget)); |
86 | |
87 | *minimum = *natural = _gtk_css_number_value_get (number: style->icon->icon_size, one_hundred_percent: 100); |
88 | } |
89 | |
90 | static void |
91 | gtk_builtin_icon_class_init (GtkBuiltinIconClass *klass) |
92 | { |
93 | GtkWidgetClass *wclass = GTK_WIDGET_CLASS (klass); |
94 | |
95 | wclass->snapshot = gtk_builtin_icon_snapshot; |
96 | wclass->measure = gtk_builtin_icon_measure; |
97 | wclass->css_changed = gtk_builtin_icon_css_changed; |
98 | } |
99 | |
100 | static void |
101 | gtk_builtin_icon_init (GtkBuiltinIcon *self) |
102 | { |
103 | } |
104 | |
105 | GtkWidget * |
106 | gtk_builtin_icon_new (const char *css_name) |
107 | { |
108 | return g_object_new (GTK_TYPE_BUILTIN_ICON, |
109 | first_property_name: "css-name" , css_name, |
110 | NULL); |
111 | } |
112 | |
113 | void |
114 | gtk_builtin_icon_set_css_name (GtkBuiltinIcon *self, |
115 | const char *css_name) |
116 | { |
117 | gtk_css_node_set_name (cssnode: gtk_widget_get_css_node (GTK_WIDGET (self)), |
118 | name: g_quark_from_string (string: css_name)); |
119 | } |
120 | |