1 /* GIMP - The GNU Image Manipulation Program
2 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
3 *
4 * gimpcellrendererbutton.c
5 * Copyright (C) 2016 Michael Natterer <mitch@gimp.org>
6 *
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
19 */
20
21 #include <config.h>
22
23 #include <gtk/gtk.h>
24
25 #include "widgets-types.h"
26
27 #include "core/gimpmarshal.h"
28
29 #include "gimpcellrendererbutton.h"
30
31
32 enum
33 {
34 CLICKED,
35 LAST_SIGNAL
36 };
37
38
39 static gboolean gimp_cell_renderer_button_activate (GtkCellRenderer *cell,
40 GdkEvent *event,
41 GtkWidget *widget,
42 const gchar *path,
43 GdkRectangle *background_area,
44 GdkRectangle *cell_area,
45 GtkCellRendererState flags);
46
47
48 G_DEFINE_TYPE (GimpCellRendererButton, gimp_cell_renderer_button,
49 GTK_TYPE_CELL_RENDERER_PIXBUF)
50
51 #define parent_class gimp_cell_renderer_button_parent_class
52
53 static guint button_cell_signals[LAST_SIGNAL] = { 0 };
54
55
56 static void
gimp_cell_renderer_button_class_init(GimpCellRendererButtonClass * klass)57 gimp_cell_renderer_button_class_init (GimpCellRendererButtonClass *klass)
58 {
59 GObjectClass *object_class = G_OBJECT_CLASS (klass);
60 GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (klass);
61
62 /**
63 * GimpCellRendererButton::clicked:
64 * @cell:
65 * @path:
66 * @state:
67 *
68 * Called on a button cell when it is clicked.
69 **/
70 button_cell_signals[CLICKED] =
71 g_signal_new ("clicked",
72 G_OBJECT_CLASS_TYPE (object_class),
73 G_SIGNAL_RUN_LAST,
74 G_STRUCT_OFFSET (GimpCellRendererButtonClass, clicked),
75 NULL, NULL,
76 gimp_marshal_VOID__STRING_FLAGS,
77 G_TYPE_NONE, 2,
78 G_TYPE_STRING,
79 GDK_TYPE_MODIFIER_TYPE);
80
81 cell_class->activate = gimp_cell_renderer_button_activate;
82
83 klass->clicked = NULL;
84 }
85
86 static void
gimp_cell_renderer_button_init(GimpCellRendererButton * cell_button)87 gimp_cell_renderer_button_init (GimpCellRendererButton *cell_button)
88 {
89 g_object_set (cell_button,
90 "mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE,
91 "xpad", 2,
92 "ypad", 2,
93 "stock-size", GTK_ICON_SIZE_BUTTON,
94 NULL);
95 }
96
97 static gboolean
gimp_cell_renderer_button_activate(GtkCellRenderer * cell,GdkEvent * event,GtkWidget * widget,const gchar * path,GdkRectangle * background_area,GdkRectangle * cell_area,GtkCellRendererState flags)98 gimp_cell_renderer_button_activate (GtkCellRenderer *cell,
99 GdkEvent *event,
100 GtkWidget *widget,
101 const gchar *path,
102 GdkRectangle *background_area,
103 GdkRectangle *cell_area,
104 GtkCellRendererState flags)
105 {
106 GimpCellRendererButton *cell_button = GIMP_CELL_RENDERER_BUTTON (cell);
107 GdkModifierType state = 0;
108
109 if (event && ((GdkEventAny *) event)->type == GDK_BUTTON_PRESS)
110 state = ((GdkEventButton *) event)->state;
111
112 if (! event ||
113 (((GdkEventAny *) event)->type == GDK_BUTTON_PRESS &&
114 ((GdkEventButton *) event)->button == 1))
115 {
116 gimp_cell_renderer_button_clicked (cell_button, path, state);
117
118 return TRUE;
119 }
120
121 return FALSE;
122 }
123
124
125 /* public functions */
126
127 GtkCellRenderer *
gimp_cell_renderer_button_new(void)128 gimp_cell_renderer_button_new (void)
129 {
130 return g_object_new (GIMP_TYPE_CELL_RENDERER_BUTTON, NULL);
131 }
132
133 void
gimp_cell_renderer_button_clicked(GimpCellRendererButton * cell,const gchar * path,GdkModifierType state)134 gimp_cell_renderer_button_clicked (GimpCellRendererButton *cell,
135 const gchar *path,
136 GdkModifierType state)
137 {
138 g_return_if_fail (GIMP_IS_CELL_RENDERER_BUTTON (cell));
139 g_return_if_fail (path != NULL);
140
141 g_signal_emit (cell, button_cell_signals[CLICKED], 0, path, state);
142 }
143