1 | /* |
2 | * Copyright © 2018 Benjamin Otte |
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 "highlightoverlay.h" |
23 | |
24 | #include "gtkintl.h" |
25 | #include "gtkwidget.h" |
26 | |
27 | struct _GtkHighlightOverlay |
28 | { |
29 | GtkInspectorOverlay parent_instance; |
30 | |
31 | GtkWidget *widget; |
32 | GdkRGBA color; |
33 | }; |
34 | |
35 | struct _GtkHighlightOverlayClass |
36 | { |
37 | GtkInspectorOverlayClass parent_class; |
38 | }; |
39 | |
40 | G_DEFINE_TYPE (GtkHighlightOverlay, gtk_highlight_overlay, GTK_TYPE_INSPECTOR_OVERLAY) |
41 | |
42 | static void |
43 | gtk_highlight_overlay_snapshot (GtkInspectorOverlay *overlay, |
44 | GtkSnapshot *snapshot, |
45 | GskRenderNode *node, |
46 | GtkWidget *widget) |
47 | { |
48 | GtkHighlightOverlay *self = GTK_HIGHLIGHT_OVERLAY (ptr: overlay); |
49 | graphene_rect_t bounds; |
50 | |
51 | if (!gtk_widget_compute_bounds (widget: self->widget, target: widget, out_bounds: &bounds)) |
52 | return; |
53 | |
54 | gtk_snapshot_append_color (snapshot, |
55 | color: &self->color, |
56 | bounds: &bounds); |
57 | } |
58 | |
59 | static void |
60 | gtk_highlight_overlay_queue_draw (GtkInspectorOverlay *overlay) |
61 | { |
62 | GtkHighlightOverlay *self = GTK_HIGHLIGHT_OVERLAY (ptr: overlay); |
63 | |
64 | gtk_widget_queue_draw (widget: self->widget); |
65 | } |
66 | |
67 | static void |
68 | gtk_highlight_overlay_dispose (GObject *object) |
69 | { |
70 | GtkHighlightOverlay *self = GTK_HIGHLIGHT_OVERLAY (ptr: object); |
71 | |
72 | g_clear_object (&self->widget); |
73 | |
74 | G_OBJECT_CLASS (gtk_highlight_overlay_parent_class)->dispose (object); |
75 | } |
76 | |
77 | static void |
78 | gtk_highlight_overlay_class_init (GtkHighlightOverlayClass *klass) |
79 | { |
80 | GObjectClass *gobject_class = G_OBJECT_CLASS (klass); |
81 | GtkInspectorOverlayClass *overlay_class = GTK_INSPECTOR_OVERLAY_CLASS (ptr: klass); |
82 | |
83 | overlay_class->snapshot = gtk_highlight_overlay_snapshot; |
84 | overlay_class->queue_draw = gtk_highlight_overlay_queue_draw; |
85 | |
86 | gobject_class->dispose = gtk_highlight_overlay_dispose; |
87 | } |
88 | |
89 | static void |
90 | gtk_highlight_overlay_init (GtkHighlightOverlay *self) |
91 | { |
92 | self->color = (GdkRGBA) { 0.0, 0.0, 1.0, 0.2 }; |
93 | } |
94 | |
95 | GtkInspectorOverlay * |
96 | gtk_highlight_overlay_new (GtkWidget *widget) |
97 | { |
98 | GtkHighlightOverlay *self; |
99 | |
100 | self = g_object_new (GTK_TYPE_HIGHLIGHT_OVERLAY, NULL); |
101 | |
102 | self->widget = g_object_ref (widget); |
103 | |
104 | return GTK_INSPECTOR_OVERLAY (ptr: self); |
105 | } |
106 | |
107 | GtkWidget * |
108 | gtk_highlight_overlay_get_widget (GtkHighlightOverlay *self) |
109 | { |
110 | return self->widget; |
111 | } |
112 | |
113 | void |
114 | gtk_highlight_overlay_set_color (GtkHighlightOverlay *self, |
115 | const GdkRGBA *color) |
116 | { |
117 | if (gdk_rgba_equal (p1: &self->color, p2: color)) |
118 | return; |
119 | |
120 | self->color = *color; |
121 | gtk_inspector_overlay_queue_draw (self: GTK_INSPECTOR_OVERLAY (ptr: self)); |
122 | } |
123 | |