1 /* GIMP - The GNU Image Manipulation Program
2 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program 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
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <https://www.gnu.org/licenses/>.
16 */
17
18 #include "config.h"
19
20 #include <gegl.h>
21 #include <gtk/gtk.h>
22
23 #include "libgimpwidgets/gimpwidgets.h"
24
25 #include "dialogs-types.h"
26
27 #include "core/gimp.h"
28 #include "core/gimpchannel.h"
29 #include "core/gimpcontainer.h"
30 #include "core/gimpcontext.h"
31 #include "core/gimpimage.h"
32 #include "core/gimplayer.h"
33
34 #include "widgets/gimpcontainercombobox.h"
35 #include "widgets/gimpcontainerview.h"
36 #include "widgets/gimphelp-ids.h"
37 #include "widgets/gimpviewabledialog.h"
38 #include "widgets/gimpwidgets-utils.h"
39
40 #include "layer-add-mask-dialog.h"
41
42 #include "gimp-intl.h"
43
44
45 typedef struct _LayerAddMaskDialog LayerAddMaskDialog;
46
47 struct _LayerAddMaskDialog
48 {
49 GimpLayer *layer;
50 GimpAddMaskType add_mask_type;
51 GimpChannel *channel;
52 gboolean invert;
53 GimpAddMaskCallback callback;
54 gpointer user_data;
55 };
56
57
58 /* local function prototypes */
59
60 static void layer_add_mask_dialog_free (LayerAddMaskDialog *private);
61 static void layer_add_mask_dialog_response (GtkWidget *dialog,
62 gint response_id,
63 LayerAddMaskDialog *private);
64 static gboolean layer_add_mask_dialog_channel_selected (GimpContainerView *view,
65 GimpViewable *viewable,
66 gpointer insert_data,
67 LayerAddMaskDialog *dialog);
68
69
70 /* public functions */
71
72 GtkWidget *
layer_add_mask_dialog_new(GimpLayer * layer,GimpContext * context,GtkWidget * parent,GimpAddMaskType add_mask_type,gboolean invert,GimpAddMaskCallback callback,gpointer user_data)73 layer_add_mask_dialog_new (GimpLayer *layer,
74 GimpContext *context,
75 GtkWidget *parent,
76 GimpAddMaskType add_mask_type,
77 gboolean invert,
78 GimpAddMaskCallback callback,
79 gpointer user_data)
80 {
81 LayerAddMaskDialog *private;
82 GtkWidget *dialog;
83 GtkWidget *vbox;
84 GtkWidget *frame;
85 GtkWidget *combo;
86 GtkWidget *button;
87 GimpImage *image;
88 GimpChannel *channel;
89
90 g_return_val_if_fail (GIMP_IS_LAYER (layer), NULL);
91 g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
92 g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
93
94 private = g_slice_new0 (LayerAddMaskDialog);
95
96 private->layer = layer;
97 private->add_mask_type = add_mask_type;
98 private->invert = invert;
99 private->callback = callback;
100 private->user_data = user_data;
101
102 dialog = gimp_viewable_dialog_new (GIMP_VIEWABLE (layer), context,
103 _("Add Layer Mask"), "gimp-layer-add-mask",
104 GIMP_ICON_LAYER_MASK,
105 _("Add a Mask to the Layer"),
106 parent,
107 gimp_standard_help_func,
108 GIMP_HELP_LAYER_MASK_ADD,
109
110 _("_Cancel"), GTK_RESPONSE_CANCEL,
111 _("_Add"), GTK_RESPONSE_OK,
112
113 NULL);
114
115 gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
116 GTK_RESPONSE_OK,
117 GTK_RESPONSE_CANCEL,
118 -1);
119
120 gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
121
122 g_object_weak_ref (G_OBJECT (dialog),
123 (GWeakNotify) layer_add_mask_dialog_free, private);
124
125 g_signal_connect (dialog, "response",
126 G_CALLBACK (layer_add_mask_dialog_response),
127 private);
128
129 vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
130 gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
131 gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
132 vbox, TRUE, TRUE, 0);
133 gtk_widget_show (vbox);
134
135 frame =
136 gimp_enum_radio_frame_new (GIMP_TYPE_ADD_MASK_TYPE,
137 gtk_label_new (_("Initialize Layer Mask to:")),
138 G_CALLBACK (gimp_radio_button_update),
139 &private->add_mask_type,
140 &button);
141 gimp_int_radio_group_set_active (GTK_RADIO_BUTTON (button),
142 private->add_mask_type);
143
144 gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
145 gtk_widget_show (frame);
146
147 image = gimp_item_get_image (GIMP_ITEM (layer));
148
149 combo = gimp_container_combo_box_new (gimp_image_get_channels (image),
150 context,
151 GIMP_VIEW_SIZE_SMALL, 1);
152 gimp_enum_radio_frame_add (GTK_FRAME (frame), combo,
153 GIMP_ADD_MASK_CHANNEL, TRUE);
154 gtk_widget_show (combo);
155
156 g_signal_connect (combo, "select-item",
157 G_CALLBACK (layer_add_mask_dialog_channel_selected),
158 private);
159
160 channel = gimp_image_get_active_channel (image);
161
162 if (! channel)
163 channel = GIMP_CHANNEL (gimp_container_get_first_child (gimp_image_get_channels (image)));
164
165 gimp_container_view_select_item (GIMP_CONTAINER_VIEW (combo),
166 GIMP_VIEWABLE (channel));
167
168 button = gtk_check_button_new_with_mnemonic (_("In_vert mask"));
169 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), private->invert);
170 gtk_box_pack_end (GTK_BOX (vbox), button, FALSE, FALSE, 0);
171 gtk_widget_show (button);
172
173 g_signal_connect (button, "toggled",
174 G_CALLBACK (gimp_toggle_button_update),
175 &private->invert);
176
177 return dialog;
178 }
179
180
181 /* private functions */
182
183 static void
layer_add_mask_dialog_free(LayerAddMaskDialog * private)184 layer_add_mask_dialog_free (LayerAddMaskDialog *private)
185 {
186 g_slice_free (LayerAddMaskDialog, private);
187 }
188
189 static void
layer_add_mask_dialog_response(GtkWidget * dialog,gint response_id,LayerAddMaskDialog * private)190 layer_add_mask_dialog_response (GtkWidget *dialog,
191 gint response_id,
192 LayerAddMaskDialog *private)
193 {
194 if (response_id == GTK_RESPONSE_OK)
195 {
196 GimpImage *image = gimp_item_get_image (GIMP_ITEM (private->layer));
197
198 if (private->add_mask_type == GIMP_ADD_MASK_CHANNEL &&
199 ! private->channel)
200 {
201 gimp_message_literal (image->gimp,
202 G_OBJECT (dialog), GIMP_MESSAGE_WARNING,
203 _("Please select a channel first"));
204 return;
205 }
206
207 private->callback (dialog,
208 private->layer,
209 private->add_mask_type,
210 private->channel,
211 private->invert,
212 private->user_data);
213 }
214 else
215 {
216 gtk_widget_destroy (dialog);
217 }
218 }
219
220 static gboolean
layer_add_mask_dialog_channel_selected(GimpContainerView * view,GimpViewable * viewable,gpointer insert_data,LayerAddMaskDialog * private)221 layer_add_mask_dialog_channel_selected (GimpContainerView *view,
222 GimpViewable *viewable,
223 gpointer insert_data,
224 LayerAddMaskDialog *private)
225 {
226 private->channel = GIMP_CHANNEL (viewable);
227
228 return TRUE;
229 }
230