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-rw-r--r--app/widgets/gimptoolbox-dnd.c277
1 files changed, 277 insertions, 0 deletions
diff --git a/app/widgets/gimptoolbox-dnd.c b/app/widgets/gimptoolbox-dnd.c
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+++ b/app/widgets/gimptoolbox-dnd.c
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+/* 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 <string.h>
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "widgets-types.h"
+
+#include "core/gimp.h"
+#include "core/gimpbuffer.h"
+#include "core/gimpcontext.h"
+#include "core/gimpimage.h"
+#include "core/gimpimage-new.h"
+#include "core/gimpimage-undo.h"
+#include "core/gimplayer.h"
+#include "core/gimplayermask.h"
+#include "core/gimptoolinfo.h"
+
+#include "file/file-open.h"
+
+#include "gimpdnd.h"
+#include "gimptoolbox.h"
+#include "gimptoolbox-dnd.h"
+#include "gimpwidgets-utils.h"
+
+#include "gimp-intl.h"
+
+
+/* local function prototypes */
+
+static void gimp_toolbox_drop_uri_list (GtkWidget *widget,
+ gint x,
+ gint y,
+ GList *uri_list,
+ gpointer data);
+static void gimp_toolbox_drop_drawable (GtkWidget *widget,
+ gint x,
+ gint y,
+ GimpViewable *viewable,
+ gpointer data);
+static void gimp_toolbox_drop_tool (GtkWidget *widget,
+ gint x,
+ gint y,
+ GimpViewable *viewable,
+ gpointer data);
+static void gimp_toolbox_drop_buffer (GtkWidget *widget,
+ gint x,
+ gint y,
+ GimpViewable *viewable,
+ gpointer data);
+static void gimp_toolbox_drop_component (GtkWidget *widget,
+ gint x,
+ gint y,
+ GimpImage *image,
+ GimpChannelType component,
+ gpointer data);
+static void gimp_toolbox_drop_pixbuf (GtkWidget *widget,
+ gint x,
+ gint y,
+ GdkPixbuf *pixbuf,
+ gpointer data);
+
+
+/* public functions */
+
+void
+gimp_toolbox_dnd_init (GimpToolbox *toolbox,
+ GtkWidget *vbox)
+{
+ GimpContext *context = NULL;
+
+ g_return_if_fail (GIMP_IS_TOOLBOX (toolbox));
+ g_return_if_fail (GTK_IS_BOX (vbox));
+
+ context = gimp_toolbox_get_context (toolbox);
+
+ /* Before caling any dnd helper functions, setup the drag
+ * destination manually since we want to handle all drag events
+ * manually, otherwise we would not be able to give the drag handler
+ * a chance to handle drag events
+ */
+ gtk_drag_dest_set (vbox,
+ 0, NULL, 0,
+ GDK_ACTION_COPY | GDK_ACTION_MOVE);
+
+ gimp_dnd_viewable_dest_add (vbox,
+ GIMP_TYPE_LAYER,
+ gimp_toolbox_drop_drawable,
+ context);
+ gimp_dnd_viewable_dest_add (vbox,
+ GIMP_TYPE_LAYER_MASK,
+ gimp_toolbox_drop_drawable,
+ context);
+ gimp_dnd_viewable_dest_add (vbox,
+ GIMP_TYPE_CHANNEL,
+ gimp_toolbox_drop_drawable,
+ context);
+ gimp_dnd_viewable_dest_add (vbox,
+ GIMP_TYPE_TOOL_INFO,
+ gimp_toolbox_drop_tool,
+ context);
+ gimp_dnd_viewable_dest_add (vbox,
+ GIMP_TYPE_BUFFER,
+ gimp_toolbox_drop_buffer,
+ context);
+ gimp_dnd_component_dest_add (vbox,
+ gimp_toolbox_drop_component,
+ context);
+ gimp_dnd_uri_list_dest_add (vbox,
+ gimp_toolbox_drop_uri_list,
+ context);
+ gimp_dnd_pixbuf_dest_add (vbox,
+ gimp_toolbox_drop_pixbuf,
+ context);
+}
+
+
+/* private functions */
+
+static void
+gimp_toolbox_drop_uri_list (GtkWidget *widget,
+ gint x,
+ gint y,
+ GList *uri_list,
+ gpointer data)
+{
+ GimpContext *context = GIMP_CONTEXT (data);
+ GList *list;
+
+ if (context->gimp->busy)
+ return;
+
+ for (list = uri_list; list; list = g_list_next (list))
+ {
+ GFile *file = g_file_new_for_uri (list->data);
+ GimpImage *image;
+ GimpPDBStatusType status;
+ GError *error = NULL;
+
+ image = file_open_with_display (context->gimp, context, NULL,
+ file, FALSE,
+ G_OBJECT (gtk_widget_get_screen (widget)),
+ gimp_widget_get_monitor (widget),
+ &status, &error);
+
+ if (! image && status != GIMP_PDB_CANCEL)
+ {
+ gimp_message (context->gimp, G_OBJECT (widget), GIMP_MESSAGE_ERROR,
+ _("Opening '%s' failed:\n\n%s"),
+ gimp_file_get_utf8_name (file), error->message);
+ g_clear_error (&error);
+ }
+
+ g_object_unref (file);
+ }
+}
+
+static void
+gimp_toolbox_drop_drawable (GtkWidget *widget,
+ gint x,
+ gint y,
+ GimpViewable *viewable,
+ gpointer data)
+{
+ GimpContext *context = GIMP_CONTEXT (data);
+ GimpImage *new_image;
+
+ if (context->gimp->busy)
+ return;
+
+ new_image = gimp_image_new_from_drawable (context->gimp,
+ GIMP_DRAWABLE (viewable));
+ gimp_create_display (context->gimp, new_image, GIMP_UNIT_PIXEL, 1.0,
+ G_OBJECT (gtk_widget_get_screen (widget)),
+ gimp_widget_get_monitor (widget));
+ g_object_unref (new_image);
+}
+
+static void
+gimp_toolbox_drop_tool (GtkWidget *widget,
+ gint x,
+ gint y,
+ GimpViewable *viewable,
+ gpointer data)
+{
+ GimpContext *context = GIMP_CONTEXT (data);
+
+ if (context->gimp->busy)
+ return;
+
+ gimp_context_set_tool (context, GIMP_TOOL_INFO (viewable));
+}
+
+static void
+gimp_toolbox_drop_buffer (GtkWidget *widget,
+ gint x,
+ gint y,
+ GimpViewable *viewable,
+ gpointer data)
+{
+ GimpContext *context = GIMP_CONTEXT (data);
+ GimpImage *image;
+
+ if (context->gimp->busy)
+ return;
+
+ image = gimp_image_new_from_buffer (context->gimp,
+ GIMP_BUFFER (viewable));
+ gimp_create_display (image->gimp, image, GIMP_UNIT_PIXEL, 1.0,
+ G_OBJECT (gtk_widget_get_screen (widget)),
+ gimp_widget_get_monitor (widget));
+ g_object_unref (image);
+}
+
+static void
+gimp_toolbox_drop_component (GtkWidget *widget,
+ gint x,
+ gint y,
+ GimpImage *image,
+ GimpChannelType component,
+ gpointer data)
+{
+ GimpContext *context = GIMP_CONTEXT (data);
+ GimpImage *new_image;
+
+ if (context->gimp->busy)
+ return;
+
+ new_image = gimp_image_new_from_component (context->gimp,
+ image, component);
+ gimp_create_display (new_image->gimp, new_image, GIMP_UNIT_PIXEL, 1.0,
+ G_OBJECT (gtk_widget_get_screen (widget)),
+ gimp_widget_get_monitor (widget));
+ g_object_unref (new_image);
+}
+
+static void
+gimp_toolbox_drop_pixbuf (GtkWidget *widget,
+ gint x,
+ gint y,
+ GdkPixbuf *pixbuf,
+ gpointer data)
+{
+ GimpContext *context = GIMP_CONTEXT (data);
+ GimpImage *new_image;
+
+ if (context->gimp->busy)
+ return;
+
+ new_image = gimp_image_new_from_pixbuf (context->gimp, pixbuf,
+ _("Dropped Buffer"));
+ gimp_create_display (new_image->gimp, new_image, GIMP_UNIT_PIXEL, 1.0,
+ G_OBJECT (gtk_widget_get_screen (widget)),
+ gimp_widget_get_monitor (widget));
+ g_object_unref (new_image);
+}
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