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 "focusoverlay.h" |
23 | |
24 | #include "gtkintl.h" |
25 | #include "gtkwidget.h" |
26 | #include "gtkroot.h" |
27 | #include "gtknative.h" |
28 | |
29 | struct _GtkFocusOverlay |
30 | { |
31 | GtkInspectorOverlay parent_instance; |
32 | |
33 | GdkRGBA color; |
34 | }; |
35 | |
36 | struct _GtkFocusOverlayClass |
37 | { |
38 | GtkInspectorOverlayClass parent_class; |
39 | }; |
40 | |
41 | G_DEFINE_TYPE (GtkFocusOverlay, gtk_focus_overlay, GTK_TYPE_INSPECTOR_OVERLAY) |
42 | |
43 | static void |
44 | gtk_focus_overlay_snapshot (GtkInspectorOverlay *overlay, |
45 | GtkSnapshot *snapshot, |
46 | GskRenderNode *node, |
47 | GtkWidget *widget) |
48 | { |
49 | GtkFocusOverlay *self = GTK_FOCUS_OVERLAY (ptr: overlay); |
50 | GtkWidget *focus; |
51 | graphene_rect_t bounds; |
52 | |
53 | if (!GTK_IS_NATIVE (ptr: widget)) |
54 | return; |
55 | |
56 | focus = gtk_root_get_focus (self: GTK_ROOT (ptr: gtk_widget_get_root (widget))); |
57 | if (!focus) |
58 | return; |
59 | |
60 | if (!gtk_widget_is_ancestor (widget: focus, ancestor: widget)) |
61 | return; |
62 | |
63 | if (GTK_WIDGET (gtk_widget_get_native (focus)) != widget) |
64 | return; |
65 | |
66 | if (!gtk_widget_compute_bounds (widget: focus, target: widget, out_bounds: &bounds)) |
67 | return; |
68 | |
69 | gtk_snapshot_append_color (snapshot, color: &self->color, bounds: &bounds); |
70 | } |
71 | |
72 | static void |
73 | gtk_focus_overlay_queue_draw (GtkInspectorOverlay *overlay) |
74 | { |
75 | } |
76 | |
77 | static void |
78 | gtk_focus_overlay_class_init (GtkFocusOverlayClass *klass) |
79 | { |
80 | GtkInspectorOverlayClass *overlay_class = GTK_INSPECTOR_OVERLAY_CLASS (ptr: klass); |
81 | |
82 | overlay_class->snapshot = gtk_focus_overlay_snapshot; |
83 | overlay_class->queue_draw = gtk_focus_overlay_queue_draw; |
84 | } |
85 | |
86 | static void |
87 | gtk_focus_overlay_init (GtkFocusOverlay *self) |
88 | { |
89 | self->color = (GdkRGBA) { 0.5, 0.0, 1.0, 0.2 }; |
90 | } |
91 | |
92 | GtkInspectorOverlay * |
93 | gtk_focus_overlay_new (void) |
94 | { |
95 | GtkFocusOverlay *self; |
96 | |
97 | self = g_object_new (GTK_TYPE_FOCUS_OVERLAY, NULL); |
98 | |
99 | return GTK_INSPECTOR_OVERLAY (ptr: self); |
100 | } |
101 | |
102 | void |
103 | gtk_focus_overlay_set_color (GtkFocusOverlay *self, |
104 | const GdkRGBA *color) |
105 | { |
106 | if (gdk_rgba_equal (p1: &self->color, p2: color)) |
107 | return; |
108 | |
109 | self->color = *color; |
110 | gtk_inspector_overlay_queue_draw (self: GTK_INSPECTOR_OVERLAY (ptr: self)); |
111 | } |
112 | |