mirror of https://github.com/GNOME/gimp.git
962 lines
27 KiB
C
962 lines
27 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimpexport.c
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* Copyright (C) 1999-2004 Sven Neumann <sven@gimp.org>
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <string.h>
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#include <gtk/gtk.h>
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#include "gimp.h"
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#include "gimpui.h"
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#include "libgimp-intl.h"
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/**
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* SECTION: gimpexport
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* @title: gimpexport
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* @short_description: Export an image before it is saved.
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*
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* This function should be called by all save_plugins unless they are
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* able to save all image formats GIMP knows about. It takes care of
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* asking the user if she wishes to export the image to a format the
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* save_plugin can handle. It then performs the necessary conversions
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* (e.g. Flatten) on a copy of the image so that the image can be
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* saved without changing the original image.
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*
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* The capabilities of the save_plugin are specified by combining
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* #GimpExportCapabilities using a bitwise OR.
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*
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* Make sure you have initialized GTK+ before you call this function
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* as it will most probably have to open a dialog.
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**/
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typedef void (* ExportFunc) (GimpImage *image,
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GList **drawables);
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/* the export action structure */
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typedef struct
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{
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ExportFunc default_action;
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ExportFunc alt_action;
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const gchar *reason;
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const gchar *possibilities[2];
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gint choice;
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} ExportAction;
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/* the functions that do the actual export */
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static void
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export_merge (GimpImage *image,
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GList **drawables)
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{
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GList *layers;
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GList *iter;
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gint32 nvisible = 0;
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layers = gimp_image_list_layers (image);
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for (iter = layers; iter; iter = g_list_next (iter))
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{
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if (gimp_item_get_visible (GIMP_ITEM (iter->data)))
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nvisible++;
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}
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if (nvisible <= 1)
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{
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GimpLayer *transp;
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GimpImageType layer_type;
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/* if there is only one (or zero) visible layer, add a new
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* transparent layer that has the same size as the canvas. The
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* merge that follows will ensure that the offset, opacity and
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* size are correct
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*/
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switch (gimp_image_get_base_type (image))
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{
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case GIMP_RGB:
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layer_type = GIMP_RGBA_IMAGE;
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break;
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case GIMP_GRAY:
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layer_type = GIMP_GRAYA_IMAGE;
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break;
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case GIMP_INDEXED:
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layer_type = GIMP_INDEXEDA_IMAGE;
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break;
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default:
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/* In case we add a new type in future. */
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g_return_if_reached ();
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}
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transp = gimp_layer_new (image, "-",
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gimp_image_get_width (image),
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gimp_image_get_height (image),
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layer_type,
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100.0, GIMP_LAYER_MODE_NORMAL);
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gimp_image_insert_layer (image, transp, NULL, 1);
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gimp_selection_none (image);
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gimp_drawable_edit_clear (GIMP_DRAWABLE (transp));
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nvisible++;
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}
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if (nvisible > 1)
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{
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GimpLayer *merged;
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merged = gimp_image_merge_visible_layers (image, GIMP_CLIP_TO_IMAGE);
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g_return_if_fail (merged != NULL);
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*drawables = g_list_prepend (NULL, merged);
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g_list_free (layers);
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layers = gimp_image_list_layers (image);
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/* make sure that the merged drawable matches the image size */
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if (gimp_drawable_get_width (GIMP_DRAWABLE (merged)) !=
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gimp_image_get_width (image) ||
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gimp_drawable_get_height (GIMP_DRAWABLE (merged)) !=
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gimp_image_get_height (image))
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{
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gint off_x, off_y;
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gimp_drawable_get_offsets (GIMP_DRAWABLE (merged), &off_x, &off_y);
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gimp_layer_resize (merged,
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gimp_image_get_width (image),
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gimp_image_get_height (image),
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off_x, off_y);
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}
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}
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/* remove any remaining (invisible) layers */
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for (iter = layers; iter; iter = iter->next)
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{
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if (! g_list_find (*drawables, iter->data))
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gimp_image_remove_layer (image, iter->data);
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}
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g_list_free (layers);
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}
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static void
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export_flatten (GimpImage *image,
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GList **drawables)
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{
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GimpLayer *flattened;
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flattened = gimp_image_flatten (image);
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if (flattened != NULL)
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*drawables = g_list_prepend (NULL, flattened);
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}
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static void
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export_merge_layer_effects_rec (GList *layers)
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{
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GList *iter;
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for (iter = layers; iter; iter = g_list_next (iter))
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if (gimp_item_is_group (iter->data))
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{
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GList *children = gimp_item_list_children (iter->data);
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export_merge_layer_effects_rec (children);
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g_list_free (children);
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}
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else
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{
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gimp_drawable_merge_filters (GIMP_DRAWABLE (iter->data));
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}
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}
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static void
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export_merge_layer_effects (GimpImage *image,
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GList **drawables)
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{
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GList *layers;
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layers = gimp_image_list_layers (image);
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export_merge_layer_effects_rec (layers);
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g_list_free (layers);
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}
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static void
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export_remove_alpha (GimpImage *image,
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GList **drawables)
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{
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GList *layers;
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GList *iter;
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layers = gimp_image_list_layers (image);
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for (iter = layers; iter; iter = iter->next)
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{
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if (gimp_drawable_has_alpha (GIMP_DRAWABLE (iter->data)))
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gimp_layer_flatten (iter->data);
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}
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g_list_free (layers);
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}
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static void
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export_apply_masks (GimpImage *image,
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GList **drawables)
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{
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GList *layers;
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GList *iter;
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layers = gimp_image_list_layers (image);
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for (iter = layers; iter; iter = iter->next)
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{
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GimpLayerMask *mask;
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mask = gimp_layer_get_mask (iter->data);
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if (mask)
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{
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/* we can't apply the mask directly to a layer group, so merge it
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* first
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*/
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if (gimp_item_is_group (iter->data))
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iter->data = gimp_group_layer_merge (iter->data);
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gimp_layer_remove_mask (iter->data, GIMP_MASK_APPLY);
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}
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}
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g_list_free (layers);
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}
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static void
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export_convert_rgb (GimpImage *image,
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GList **drawables)
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{
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gimp_image_convert_rgb (image);
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}
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static void
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export_convert_grayscale (GimpImage *image,
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GList **drawables)
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{
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gimp_image_convert_grayscale (image);
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}
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static void
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export_convert_indexed (GimpImage *image,
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GList **drawables)
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{
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GList *layers;
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GList *iter;
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gboolean has_alpha = FALSE;
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/* check alpha */
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layers = gimp_image_list_layers (image);
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for (iter = *drawables; iter; iter = iter->next)
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{
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if (gimp_drawable_has_alpha (iter->data))
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{
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has_alpha = TRUE;
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break;
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}
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}
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if (layers || has_alpha)
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gimp_image_convert_indexed (image,
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GIMP_CONVERT_DITHER_NONE,
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GIMP_CONVERT_PALETTE_GENERATE,
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255, FALSE, FALSE, "");
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else
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gimp_image_convert_indexed (image,
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GIMP_CONVERT_DITHER_NONE,
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GIMP_CONVERT_PALETTE_GENERATE,
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256, FALSE, FALSE, "");
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g_list_free (layers);
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}
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static void
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export_convert_bitmap (GimpImage *image,
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GList **drawables)
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{
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if (gimp_image_get_base_type (image) == GIMP_INDEXED)
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gimp_image_convert_rgb (image);
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gimp_image_convert_indexed (image,
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GIMP_CONVERT_DITHER_FS,
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GIMP_CONVERT_PALETTE_GENERATE,
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2, FALSE, FALSE, "");
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}
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static void
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export_add_alpha (GimpImage *image,
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GList **drawables)
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{
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GList *layers;
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GList *iter;
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layers = gimp_image_list_layers (image);
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for (iter = layers; iter; iter = iter->next)
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{
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if (! gimp_drawable_has_alpha (GIMP_DRAWABLE (iter->data)))
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gimp_layer_add_alpha (GIMP_LAYER (iter->data));
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}
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g_list_free (layers);
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}
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static void
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export_crop_image (GimpImage *image,
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GList **drawables)
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{
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gimp_image_crop (image,
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gimp_image_get_width (image),
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gimp_image_get_height (image),
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0, 0);
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}
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static void
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export_resize_image (GimpImage *image,
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GList **drawables)
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{
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gimp_image_resize_to_layers (image);
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}
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static void
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export_void (GimpImage *image,
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GList **drawables)
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{
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/* do nothing */
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}
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/* a set of predefined actions */
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static ExportAction export_action_merge =
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{
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export_merge,
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NULL,
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N_("%s plug-in can't handle layers"),
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{ N_("Merge Visible Layers"), NULL },
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0
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};
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static ExportAction export_action_merge_single =
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{
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export_merge,
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NULL,
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N_("%s plug-in can't handle layer offsets, size or opacity"),
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{ N_("Merge Visible Layers"), NULL },
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0
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};
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static ExportAction export_action_animate_or_merge =
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{
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NULL,
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export_merge,
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N_("%s plug-in can only handle layers as animation frames"),
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{ N_("Save as Animation"), N_("Merge Visible Layers") },
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0
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};
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static ExportAction export_action_animate_or_flatten =
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{
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NULL,
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export_flatten,
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N_("%s plug-in can only handle layers as animation frames"),
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{ N_("Save as Animation"), N_("Flatten Image") },
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0
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};
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static ExportAction export_action_merge_or_flatten =
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{
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export_flatten,
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export_merge,
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N_("%s plug-in can't handle layers"),
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{ N_("Flatten Image"), N_("Merge Visible Layers") },
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1
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};
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static ExportAction export_action_flatten =
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{
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export_flatten,
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NULL,
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N_("%s plug-in can't handle transparency"),
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{ N_("Flatten Image"), NULL },
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0
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};
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static ExportAction export_action_merge_layer_effects =
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{
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export_merge_layer_effects,
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NULL,
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N_("%s plug-in can't handle layer effects"),
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{ N_("Merge Layer Effects"), NULL },
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0
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};
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static ExportAction export_action_remove_alpha =
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{
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export_remove_alpha,
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NULL,
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N_("%s plug-in can't handle transparent layers"),
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{ N_("Flatten Image"), NULL },
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0
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};
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static ExportAction export_action_apply_masks =
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{
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export_apply_masks,
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NULL,
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N_("%s plug-in can't handle layer masks"),
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{ N_("Apply Layer Masks"), NULL },
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0
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};
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static ExportAction export_action_convert_rgb =
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{
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export_convert_rgb,
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NULL,
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N_("%s plug-in can only handle RGB images"),
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{ N_("Convert to RGB"), NULL },
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0
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};
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static ExportAction export_action_convert_grayscale =
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{
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export_convert_grayscale,
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NULL,
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N_("%s plug-in can only handle grayscale images"),
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{ N_("Convert to Grayscale"), NULL },
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0
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};
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static ExportAction export_action_convert_indexed =
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{
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export_convert_indexed,
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NULL,
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N_("%s plug-in can only handle indexed images"),
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{ N_("Convert to Indexed using default settings\n"
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"(Do it manually to tune the result)"), NULL },
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0
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};
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static ExportAction export_action_convert_bitmap =
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{
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export_convert_bitmap,
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NULL,
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N_("%s plug-in can only handle bitmap (two color) indexed images"),
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{ N_("Convert to Indexed using bitmap default settings\n"
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"(Do it manually to tune the result)"), NULL },
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0
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};
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static ExportAction export_action_convert_rgb_or_grayscale =
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{
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export_convert_rgb,
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export_convert_grayscale,
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N_("%s plug-in can only handle RGB or grayscale images"),
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{ N_("Convert to RGB"), N_("Convert to Grayscale")},
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0
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};
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static ExportAction export_action_convert_rgb_or_indexed =
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{
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export_convert_rgb,
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export_convert_indexed,
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N_("%s plug-in can only handle RGB or indexed images"),
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{ N_("Convert to RGB"), N_("Convert to Indexed using default settings\n"
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"(Do it manually to tune the result)")},
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0
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};
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static ExportAction export_action_convert_indexed_or_grayscale =
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{
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export_convert_indexed,
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export_convert_grayscale,
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N_("%s plug-in can only handle grayscale or indexed images"),
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{ N_("Convert to Indexed using default settings\n"
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"(Do it manually to tune the result)"),
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N_("Convert to Grayscale") },
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0
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};
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static ExportAction export_action_add_alpha =
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{
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export_add_alpha,
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NULL,
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N_("%s plug-in needs an alpha channel"),
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{ N_("Add Alpha Channel"), NULL},
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0
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};
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static ExportAction export_action_crop_or_resize =
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{
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export_crop_image,
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export_resize_image,
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N_("%s plug-in needs to crop the layers to the image bounds"),
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{ N_("Crop Layers"), N_("Resize Image to Layers")},
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0
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};
|
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|
|
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static ExportFunc
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export_action_get_func (const ExportAction *action)
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{
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if (action->choice == 0 && action->default_action)
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{
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return action->default_action;
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}
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if (action->choice == 1 && action->alt_action)
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{
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return action->alt_action;
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}
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return export_void;
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}
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static void
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export_action_perform (const ExportAction *action,
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GimpImage *image,
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GList **drawables)
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{
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export_action_get_func (action) (image, drawables);
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}
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|
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/* dialog functions */
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/**
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* gimp_export_image:
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* @image: Pointer to the image.
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* @capabilities: What can the image_format do?
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*
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* Takes an image to be saved together with a description
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* of the capabilities of the image_format. If the type of
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* image doesn't match the capabilities of the format
|
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* a dialog is opened that informs the user that the image has
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* to be exported and offers to do the necessary conversions.
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*
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* If the user chooses to export the image, a copy is created.
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* This copy is then converted, @image is changed to point to the
|
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* new image and the procedure returns GIMP_EXPORT_EXPORT.
|
|
* The save_plugin has to take care of deleting the created image using
|
|
* gimp_image_delete() once the image has been saved.
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*
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* If the user chooses to Ignore the export problem, @image is not
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|
* altered, GIMP_EXPORT_IGNORE is returned and the save_plugin
|
|
* should try to save the original image.
|
|
*
|
|
* Returns: An enum of #GimpExportReturn describing the user_action.
|
|
**/
|
|
GimpExportReturn
|
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gimp_export_image (GimpImage **image,
|
|
GimpExportCapabilities capabilities)
|
|
{
|
|
GSList *actions = NULL;
|
|
GimpImageBaseType type;
|
|
GList *layers;
|
|
gint n_layers;
|
|
GList *iter;
|
|
gboolean added_flatten = FALSE;
|
|
gboolean has_layer_masks = FALSE;
|
|
gboolean background_has_alpha = TRUE;
|
|
GimpExportReturn retval = GIMP_EXPORT_IGNORE;
|
|
|
|
g_return_val_if_fail (gimp_image_is_valid (*image), FALSE);
|
|
|
|
/* do some sanity checks */
|
|
if (capabilities & GIMP_EXPORT_NEEDS_ALPHA)
|
|
capabilities |= GIMP_EXPORT_CAN_HANDLE_ALPHA;
|
|
|
|
if (capabilities & GIMP_EXPORT_CAN_HANDLE_LAYERS_AS_ANIMATION)
|
|
capabilities |= GIMP_EXPORT_CAN_HANDLE_LAYERS;
|
|
|
|
if (capabilities & GIMP_EXPORT_CAN_HANDLE_LAYER_MASKS)
|
|
capabilities |= GIMP_EXPORT_CAN_HANDLE_LAYERS;
|
|
|
|
/* Merge down layer effects for non-project file formats */
|
|
if (! (capabilities & GIMP_EXPORT_CAN_HANDLE_LAYER_EFFECTS))
|
|
actions = g_slist_prepend (actions, &export_action_merge_layer_effects);
|
|
|
|
/* check alpha and layer masks */
|
|
layers = gimp_image_list_layers (*image);
|
|
n_layers = g_list_length (layers);
|
|
|
|
if (n_layers < 1)
|
|
{
|
|
g_list_free (layers);
|
|
return FALSE;
|
|
}
|
|
|
|
for (iter = layers; iter; iter = iter->next)
|
|
{
|
|
GimpLayer *layer = GIMP_LAYER (iter->data);
|
|
|
|
if (gimp_drawable_has_alpha (GIMP_DRAWABLE (layer)))
|
|
{
|
|
if (! (capabilities & GIMP_EXPORT_CAN_HANDLE_ALPHA))
|
|
{
|
|
if (! (capabilities & GIMP_EXPORT_CAN_HANDLE_LAYERS))
|
|
{
|
|
actions = g_slist_prepend (actions, &export_action_flatten);
|
|
added_flatten = TRUE;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
actions = g_slist_prepend (actions, &export_action_remove_alpha);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* If this is the last layer, it's visible and has no alpha
|
|
* channel, then the image has a "flat" background
|
|
*/
|
|
if (iter->next == NULL && gimp_item_get_visible (GIMP_ITEM (layer)))
|
|
background_has_alpha = FALSE;
|
|
|
|
if (capabilities & GIMP_EXPORT_NEEDS_ALPHA)
|
|
{
|
|
actions = g_slist_prepend (actions, &export_action_add_alpha);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (! added_flatten)
|
|
{
|
|
for (iter = layers; iter; iter = iter->next)
|
|
{
|
|
if (gimp_layer_get_mask (iter->data))
|
|
has_layer_masks = TRUE;
|
|
}
|
|
}
|
|
|
|
if (! added_flatten)
|
|
{
|
|
GimpLayer *layer = GIMP_LAYER (layers->data);
|
|
GList *children;
|
|
|
|
children = gimp_item_list_children (GIMP_ITEM (layer));
|
|
|
|
if ((capabilities & GIMP_EXPORT_CAN_HANDLE_LAYERS) &&
|
|
(capabilities & GIMP_EXPORT_NEEDS_CROP))
|
|
{
|
|
GeglRectangle image_bounds;
|
|
gboolean needs_crop = FALSE;
|
|
|
|
image_bounds.x = 0;
|
|
image_bounds.y = 0;
|
|
image_bounds.width = gimp_image_get_width (*image);
|
|
image_bounds.height = gimp_image_get_height (*image);
|
|
|
|
for (iter = layers; iter; iter = iter->next)
|
|
{
|
|
GimpDrawable *drawable = iter->data;
|
|
GeglRectangle layer_bounds;
|
|
|
|
gimp_drawable_get_offsets (drawable,
|
|
&layer_bounds.x, &layer_bounds.y);
|
|
|
|
layer_bounds.width = gimp_drawable_get_width (drawable);
|
|
layer_bounds.height = gimp_drawable_get_height (drawable);
|
|
|
|
if (! gegl_rectangle_contains (&image_bounds, &layer_bounds))
|
|
{
|
|
needs_crop = TRUE;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (needs_crop)
|
|
{
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_crop_or_resize);
|
|
}
|
|
}
|
|
|
|
/* check if layer size != canvas size, opacity != 100%, or offsets != 0 */
|
|
if (g_list_length (layers) == 1 &&
|
|
! children &&
|
|
! (capabilities & GIMP_EXPORT_CAN_HANDLE_LAYERS))
|
|
{
|
|
GimpDrawable *drawable = layers->data;
|
|
gint offset_x;
|
|
gint offset_y;
|
|
|
|
gimp_drawable_get_offsets (drawable, &offset_x, &offset_y);
|
|
|
|
if ((gimp_layer_get_opacity (GIMP_LAYER (drawable)) < 100.0) ||
|
|
(gimp_image_get_width (*image) !=
|
|
gimp_drawable_get_width (drawable)) ||
|
|
(gimp_image_get_height (*image) !=
|
|
gimp_drawable_get_height (drawable)) ||
|
|
offset_x || offset_y)
|
|
{
|
|
if (capabilities & GIMP_EXPORT_CAN_HANDLE_ALPHA)
|
|
{
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_merge_single);
|
|
}
|
|
else
|
|
{
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_flatten);
|
|
}
|
|
}
|
|
}
|
|
/* check multiple layers */
|
|
else if (layers && layers->next != NULL)
|
|
{
|
|
if (capabilities & GIMP_EXPORT_CAN_HANDLE_LAYERS_AS_ANIMATION)
|
|
{
|
|
if (background_has_alpha ||
|
|
capabilities & GIMP_EXPORT_NEEDS_ALPHA)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_animate_or_merge);
|
|
else
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_animate_or_flatten);
|
|
}
|
|
else if (! (capabilities & GIMP_EXPORT_CAN_HANDLE_LAYERS))
|
|
{
|
|
if (capabilities & GIMP_EXPORT_NEEDS_ALPHA)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_merge);
|
|
else
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_merge_or_flatten);
|
|
}
|
|
}
|
|
/* check for a single toplevel layer group */
|
|
else if (children)
|
|
{
|
|
if (! (capabilities & GIMP_EXPORT_CAN_HANDLE_LAYERS))
|
|
{
|
|
if (capabilities & GIMP_EXPORT_NEEDS_ALPHA)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_merge);
|
|
else
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_merge_or_flatten);
|
|
}
|
|
}
|
|
|
|
g_list_free (children);
|
|
|
|
/* check layer masks */
|
|
if (has_layer_masks &&
|
|
! (capabilities & GIMP_EXPORT_CAN_HANDLE_LAYER_MASKS))
|
|
actions = g_slist_prepend (actions, &export_action_apply_masks);
|
|
}
|
|
|
|
g_list_free (layers);
|
|
|
|
/* check the image type */
|
|
type = gimp_image_get_base_type (*image);
|
|
switch (type)
|
|
{
|
|
case GIMP_RGB:
|
|
if (! (capabilities & GIMP_EXPORT_CAN_HANDLE_RGB))
|
|
{
|
|
if ((capabilities & GIMP_EXPORT_CAN_HANDLE_INDEXED) &&
|
|
(capabilities & GIMP_EXPORT_CAN_HANDLE_GRAY))
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_indexed_or_grayscale);
|
|
else if (capabilities & GIMP_EXPORT_CAN_HANDLE_INDEXED)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_indexed);
|
|
else if (capabilities & GIMP_EXPORT_CAN_HANDLE_GRAY)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_grayscale);
|
|
else if (capabilities & GIMP_EXPORT_CAN_HANDLE_BITMAP)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_bitmap);
|
|
}
|
|
break;
|
|
|
|
case GIMP_GRAY:
|
|
if (! (capabilities & GIMP_EXPORT_CAN_HANDLE_GRAY))
|
|
{
|
|
if ((capabilities & GIMP_EXPORT_CAN_HANDLE_RGB) &&
|
|
(capabilities & GIMP_EXPORT_CAN_HANDLE_INDEXED))
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_rgb_or_indexed);
|
|
else if (capabilities & GIMP_EXPORT_CAN_HANDLE_RGB)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_rgb);
|
|
else if (capabilities & GIMP_EXPORT_CAN_HANDLE_INDEXED)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_indexed);
|
|
else if (capabilities & GIMP_EXPORT_CAN_HANDLE_BITMAP)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_bitmap);
|
|
}
|
|
break;
|
|
|
|
case GIMP_INDEXED:
|
|
if (! (capabilities & GIMP_EXPORT_CAN_HANDLE_INDEXED))
|
|
{
|
|
if ((capabilities & GIMP_EXPORT_CAN_HANDLE_RGB) &&
|
|
(capabilities & GIMP_EXPORT_CAN_HANDLE_GRAY))
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_rgb_or_grayscale);
|
|
else if (capabilities & GIMP_EXPORT_CAN_HANDLE_RGB)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_rgb);
|
|
else if (capabilities & GIMP_EXPORT_CAN_HANDLE_GRAY)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_grayscale);
|
|
else if (capabilities & GIMP_EXPORT_CAN_HANDLE_BITMAP)
|
|
{
|
|
gint n_colors;
|
|
|
|
g_free (gimp_image_get_colormap (*image, NULL, &n_colors));
|
|
|
|
if (n_colors > 2)
|
|
actions = g_slist_prepend (actions,
|
|
&export_action_convert_bitmap);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (actions)
|
|
{
|
|
actions = g_slist_reverse (actions);
|
|
|
|
retval = GIMP_EXPORT_EXPORT;
|
|
}
|
|
else
|
|
{
|
|
retval = GIMP_EXPORT_IGNORE;
|
|
}
|
|
|
|
if (retval == GIMP_EXPORT_EXPORT)
|
|
{
|
|
GSList *list;
|
|
GList *drawables_in;
|
|
GList *drawables_out;
|
|
|
|
*image = gimp_image_duplicate (*image);
|
|
drawables_in = gimp_image_list_selected_layers (*image);
|
|
drawables_out = drawables_in;
|
|
|
|
gimp_image_undo_disable (*image);
|
|
|
|
for (list = actions; list; list = list->next)
|
|
{
|
|
export_action_perform (list->data, *image, &drawables_out);
|
|
|
|
if (drawables_in != drawables_out)
|
|
{
|
|
g_list_free (drawables_in);
|
|
drawables_in = drawables_out;
|
|
}
|
|
}
|
|
|
|
g_list_free (drawables_out);
|
|
}
|
|
|
|
g_slist_free (actions);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* gimp_export_dialog_new:
|
|
* @format_name: The short name of the image_format (e.g. JPEG or PNG).
|
|
* @role: The dialog's @role which will be set with
|
|
* gtk_window_set_role().
|
|
* @help_id: The GIMP help id.
|
|
*
|
|
* Creates a new export dialog. All file plug-ins should use this
|
|
* dialog to get a consistent look on the export dialogs. Use
|
|
* gimp_export_dialog_get_content_area() to get a vertical #GtkBox to be
|
|
* filled with export options. The export dialog is a wrapped
|
|
* #GimpDialog.
|
|
*
|
|
* The dialog response when the user clicks on the Export button is
|
|
* %GTK_RESPONSE_OK, and when the Cancel button is clicked it is
|
|
* %GTK_RESPONSE_CANCEL.
|
|
*
|
|
* Returns: (transfer full): The new export dialog.
|
|
*
|
|
* Since: 2.8
|
|
**/
|
|
GtkWidget *
|
|
gimp_export_dialog_new (const gchar *format_name,
|
|
const gchar *role,
|
|
const gchar *help_id)
|
|
{
|
|
GtkWidget *dialog;
|
|
/* TRANSLATORS: the %s parameter is an image format name (ex: PNG). */
|
|
gchar *title = g_strdup_printf (_("Export Image as %s"), format_name);
|
|
|
|
dialog = gimp_dialog_new (title, role,
|
|
NULL, 0,
|
|
gimp_standard_help_func, help_id,
|
|
|
|
_("_Cancel"), GTK_RESPONSE_CANCEL,
|
|
_("_Export"), GTK_RESPONSE_OK,
|
|
|
|
NULL);
|
|
|
|
gimp_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
|
|
GTK_RESPONSE_OK,
|
|
GTK_RESPONSE_CANCEL,
|
|
-1);
|
|
|
|
gimp_window_set_transient (GTK_WINDOW (dialog));
|
|
|
|
g_free (title);
|
|
|
|
return dialog;
|
|
}
|
|
|
|
/**
|
|
* gimp_export_dialog_get_content_area:
|
|
* @dialog: A dialog created with gimp_export_dialog_new()
|
|
*
|
|
* Returns the vertical #GtkBox of the passed export dialog to be filled with
|
|
* export options.
|
|
*
|
|
* Returns: (transfer none): The #GtkBox to fill with export options.
|
|
*
|
|
* Since: 2.8
|
|
**/
|
|
GtkWidget *
|
|
gimp_export_dialog_get_content_area (GtkWidget *dialog)
|
|
{
|
|
return gtk_dialog_get_content_area (GTK_DIALOG (dialog));
|
|
}
|