gimp/app/dialogs/layer-add-mask-dialog.c

249 lines
8.5 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "dialogs-types.h"
#include "core/gimp.h"
#include "core/gimpchannel.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimplayer.h"
#include "widgets/gimpcontainercombobox.h"
#include "widgets/gimpcontainerview.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "widgets/gimpwidgets-utils.h"
#include "layer-add-mask-dialog.h"
#include "gimp-intl.h"
typedef struct _LayerAddMaskDialog LayerAddMaskDialog;
struct _LayerAddMaskDialog
{
GList *layers;
GimpAddMaskType add_mask_type;
GimpChannel *channel;
gboolean invert;
GimpAddMaskCallback callback;
gpointer user_data;
};
/* local function prototypes */
static void layer_add_mask_dialog_free (LayerAddMaskDialog *private);
static void layer_add_mask_dialog_response (GtkWidget *dialog,
gint response_id,
LayerAddMaskDialog *private);
static gboolean layer_add_mask_dialog_channel_selected (GimpContainerView *view,
GList *viewables,
GList *paths,
LayerAddMaskDialog *private);
/* public functions */
GtkWidget *
layer_add_mask_dialog_new (GList *layers,
GimpContext *context,
GtkWidget *parent,
GimpAddMaskType add_mask_type,
gboolean invert,
GimpAddMaskCallback callback,
gpointer user_data)
{
LayerAddMaskDialog *private;
GtkWidget *dialog;
GtkWidget *vbox;
GtkWidget *frame;
GtkWidget *combo;
GtkWidget *button;
GimpImage *image;
GimpChannel *channel;
GList *channels;
gchar *title;
gchar *desc;
gint n_layers = g_list_length (layers);
g_return_val_if_fail (layers, NULL);
g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
private = g_slice_new0 (LayerAddMaskDialog);
private->layers = layers;
private->add_mask_type = add_mask_type;
private->invert = invert;
private->callback = callback;
private->user_data = user_data;
title = ngettext ("Add Layer Mask", "Add Layer Masks", n_layers);
title = g_strdup_printf (title, n_layers);
desc = ngettext ("Add a Mask to the Layer", "Add Masks to %d Layers", n_layers);
desc = g_strdup_printf (desc, n_layers);
dialog = gimp_viewable_dialog_new (layers, context,
title,
"gimp-layer-add-mask",
GIMP_ICON_LAYER_MASK,
desc,
parent,
gimp_standard_help_func,
GIMP_HELP_LAYER_MASK_ADD,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_Add"), GTK_RESPONSE_OK,
NULL);
g_free (title);
g_free (desc);
gimp_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
g_object_weak_ref (G_OBJECT (dialog),
(GWeakNotify) layer_add_mask_dialog_free, private);
g_signal_connect (dialog, "response",
G_CALLBACK (layer_add_mask_dialog_response),
private);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
vbox, TRUE, TRUE, 0);
gtk_widget_show (vbox);
frame =
gimp_enum_radio_frame_new (GIMP_TYPE_ADD_MASK_TYPE,
gtk_label_new (_("Initialize Layer Mask to:")),
G_CALLBACK (gimp_radio_button_update),
&private->add_mask_type, NULL,
&button);
gimp_int_radio_group_set_active (GTK_RADIO_BUTTON (button),
private->add_mask_type);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
image = gimp_item_get_image (GIMP_ITEM (layers->data));
combo = gimp_container_combo_box_new (gimp_image_get_channels (image),
context,
GIMP_VIEW_SIZE_SMALL, 1);
gimp_enum_radio_frame_add (GTK_FRAME (frame), combo,
GIMP_ADD_MASK_CHANNEL, TRUE);
gtk_widget_show (combo);
g_signal_connect (combo, "select-items",
G_CALLBACK (layer_add_mask_dialog_channel_selected),
private);
channels = gimp_image_get_selected_channels (image);
if (channels)
/* Mask dialog only requires one channel. Just take any of the
* selected ones randomly.
*/
channel = channels->data;
else
channel = GIMP_CHANNEL (gimp_container_get_first_child (gimp_image_get_channels (image)));
gimp_container_view_select_item (GIMP_CONTAINER_VIEW (combo),
GIMP_VIEWABLE (channel));
button = gtk_check_button_new_with_mnemonic (_("In_vert mask"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), private->invert);
gtk_box_pack_end (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&private->invert);
return dialog;
}
/* private functions */
static void
layer_add_mask_dialog_free (LayerAddMaskDialog *private)
{
g_slice_free (LayerAddMaskDialog, private);
}
static void
layer_add_mask_dialog_response (GtkWidget *dialog,
gint response_id,
LayerAddMaskDialog *private)
{
if (response_id == GTK_RESPONSE_OK)
{
GimpImage *image = gimp_item_get_image (GIMP_ITEM (private->layers->data));
if (private->add_mask_type == GIMP_ADD_MASK_CHANNEL &&
! private->channel)
{
gimp_message_literal (image->gimp,
G_OBJECT (dialog), GIMP_MESSAGE_WARNING,
_("Please select a channel first"));
return;
}
private->callback (dialog,
private->layers,
private->add_mask_type,
private->channel,
private->invert,
private->user_data);
}
else
{
gtk_widget_destroy (dialog);
}
}
static gboolean
layer_add_mask_dialog_channel_selected (GimpContainerView *view,
GList *viewables,
GList *paths,
LayerAddMaskDialog *private)
{
g_return_val_if_fail (g_list_length (viewables) < 2, FALSE);
private->channel = viewables? GIMP_CHANNEL (viewables->data) : NULL;
return TRUE;
}