PIKApp/app/widgets/pikatoolbox-image-area.c

152 lines
4.9 KiB
C

/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* 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 <stdlib.h>
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libpikawidgets/pikawidgets.h"
#include "widgets-types.h"
#include "core/pika.h"
#include "core/pikacontext.h"
#include "core/pikaimage.h"
#include "pikadnd.h"
#include "pikahelp-ids.h"
#include "pikatoolbox.h"
#include "pikatoolbox-image-area.h"
#include "pikaview.h"
#include "pikawindowstrategy.h"
#include "pikawidgets-utils.h"
#include "pika-intl.h"
static void
image_preview_clicked (GtkWidget *widget,
GdkModifierType state,
PikaToolbox *toolbox)
{
PikaContext *context = pika_toolbox_get_context (toolbox);
pika_window_strategy_show_dockable_dialog (PIKA_WINDOW_STRATEGY (pika_get_window_strategy (context->pika)),
context->pika,
pika_dock_get_dialog_factory (PIKA_DOCK (toolbox)),
pika_widget_get_monitor (widget),
"pika-image-list|pika-image-grid");
}
static void
image_preview_drop_image (GtkWidget *widget,
gint x,
gint y,
PikaViewable *viewable,
gpointer data)
{
PikaContext *context = PIKA_CONTEXT (data);
pika_context_set_image (context, PIKA_IMAGE (viewable));
}
static void
image_preview_set_viewable (PikaView *view,
PikaViewable *old_viewable,
PikaViewable *new_viewable)
{
if (! old_viewable && new_viewable)
{
pika_dnd_xds_source_add (GTK_WIDGET (view),
(PikaDndDragViewableFunc) pika_view_get_viewable,
NULL);
}
else if (old_viewable && ! new_viewable)
{
pika_dnd_xds_source_remove (GTK_WIDGET (view));
}
}
/* public functions */
GtkWidget *
pika_toolbox_image_area_create (PikaToolbox *toolbox,
gint width,
gint height)
{
PikaContext *context;
GtkWidget *image_view;
gchar *tooltip;
g_return_val_if_fail (PIKA_IS_TOOLBOX (toolbox), NULL);
context = pika_toolbox_get_context (toolbox);
image_view = pika_view_new_full_by_types (context,
PIKA_TYPE_VIEW, PIKA_TYPE_IMAGE,
width, height, 0,
FALSE, TRUE, TRUE);
g_signal_connect (image_view, "set-viewable",
G_CALLBACK (image_preview_set_viewable),
NULL);
pika_view_set_viewable (PIKA_VIEW (image_view),
PIKA_VIEWABLE (pika_context_get_image (context)));
gtk_widget_show (image_view);
#ifdef GDK_WINDOWING_X11
tooltip = g_strdup_printf ("%s\n%s",
_("The active image.\n"
"Click to open the Image Dialog."),
_("Drag to an XDS enabled file-manager to "
"save the image."));
#else
tooltip = g_strdup (_("The active image.\n"
"Click to open the Image Dialog."));
#endif
pika_help_set_help_data (image_view, tooltip,
PIKA_HELP_TOOLBOX_IMAGE_AREA);
g_free (tooltip);
g_signal_connect_object (context, "image-changed",
G_CALLBACK (pika_view_set_viewable),
image_view, G_CONNECT_SWAPPED);
g_signal_connect (image_view, "clicked",
G_CALLBACK (image_preview_clicked),
toolbox);
pika_dnd_viewable_dest_add (image_view,
PIKA_TYPE_IMAGE,
image_preview_drop_image,
context);
return image_view;
}