1 | /* |
2 | * Copyright © 2018 Red Hat Inc. |
3 | * |
4 | * This library is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU Lesser General Public |
6 | * License as published by the Free Software Foundation; either |
7 | * version 2.1 of the License, or (at your option) any later version. |
8 | * |
9 | * This library is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
16 | * |
17 | * Authors: Benjamin Otte <otte@gnome.org> |
18 | */ |
19 | |
20 | #include "config.h" |
21 | |
22 | #include "gtkcssdynamicprivate.h" |
23 | #include "gtkprogresstrackerprivate.h" |
24 | |
25 | struct _GtkCssDynamic |
26 | { |
27 | GtkStyleAnimation parent; |
28 | gint64 timestamp; |
29 | }; |
30 | |
31 | static GtkStyleAnimation * |
32 | gtk_css_dynamic_advance (GtkStyleAnimation *style_animation, |
33 | gint64 timestamp) |
34 | { |
35 | return gtk_css_dynamic_new (timestamp); |
36 | } |
37 | |
38 | static void |
39 | gtk_css_dynamic_apply_values (GtkStyleAnimation *style_animation, |
40 | GtkCssAnimatedStyle *style) |
41 | { |
42 | GtkCssDynamic *dynamic = (GtkCssDynamic *)style_animation; |
43 | guint i; |
44 | |
45 | for (i = 0; i < GTK_CSS_PROPERTY_N_PROPERTIES; i++) |
46 | { |
47 | GtkCssValue *value, *dynamic_value; |
48 | |
49 | value = gtk_css_style_get_value (GTK_CSS_STYLE (style), id: i); |
50 | dynamic_value = gtk_css_value_get_dynamic_value (value, monotonic_time: dynamic->timestamp); |
51 | if (value != dynamic_value) |
52 | gtk_css_animated_style_set_animated_value (style, id: i, value: dynamic_value); |
53 | else |
54 | gtk_css_value_unref (value: dynamic_value); |
55 | } |
56 | } |
57 | |
58 | static gboolean |
59 | gtk_css_dynamic_is_finished (GtkStyleAnimation *style_animation) |
60 | { |
61 | return FALSE; |
62 | } |
63 | |
64 | static gboolean |
65 | gtk_css_dynamic_is_static (GtkStyleAnimation *style_animation) |
66 | { |
67 | return FALSE; |
68 | } |
69 | |
70 | static void |
71 | gtk_css_dynamic_free (GtkStyleAnimation *animation) |
72 | { |
73 | g_slice_free (GtkCssDynamic, (GtkCssDynamic *)animation); |
74 | } |
75 | |
76 | static const GtkStyleAnimationClass GTK_CSS_DYNAMIC_CLASS = { |
77 | "GtkCssDynamic" , |
78 | gtk_css_dynamic_free, |
79 | gtk_css_dynamic_is_finished, |
80 | gtk_css_dynamic_is_static, |
81 | gtk_css_dynamic_apply_values, |
82 | gtk_css_dynamic_advance, |
83 | }; |
84 | |
85 | GtkStyleAnimation * |
86 | gtk_css_dynamic_new (gint64 timestamp) |
87 | { |
88 | GtkCssDynamic *dynamic = g_slice_alloc (block_size: sizeof (GtkCssDynamic)); |
89 | |
90 | dynamic->parent.class = >K_CSS_DYNAMIC_CLASS; |
91 | dynamic->parent.ref_count = 1; |
92 | dynamic->timestamp = timestamp; |
93 | |
94 | return (GtkStyleAnimation *)dynamic; |
95 | } |
96 | |
97 | |