28e1a379e6
They are unreliable because every type checking cast discards them, they are useless anyway, visual clutter, added inconsistently, and generally suck. Wanted to do this a long time ago, it was a bad idea in the first place.
328 lines
8.8 KiB
C
328 lines
8.8 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "libgimpbase/gimpbase.h"
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#include "core-types.h"
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#include "gimpcontext.h"
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#include "gimpimage.h"
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#include "gimpimage-item-list.h"
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#include "gimpimage-undo.h"
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#include "gimpitem.h"
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#include "gimpprogress.h"
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#include "gimp-intl.h"
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/* public functions */
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gboolean
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gimp_image_item_list_bounds (GimpImage *image,
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GList *list,
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gint *x,
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gint *y,
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gint *width,
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gint *height)
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{
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GList *l;
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gboolean bounds = FALSE;
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g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
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g_return_val_if_fail (x != 0, FALSE);
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g_return_val_if_fail (y != 0, FALSE);
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g_return_val_if_fail (width != 0, FALSE);
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g_return_val_if_fail (height != 0, FALSE);
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for (l = list; l; l = g_list_next (l))
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{
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GimpItem *item = l->data;
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gint tmp_x, tmp_y;
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gint tmp_w, tmp_h;
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if (gimp_item_bounds (item, &tmp_x, &tmp_y, &tmp_w, &tmp_h))
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{
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gint off_x, off_y;
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gimp_item_get_offset (item, &off_x, &off_y);
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if (bounds)
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{
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gimp_rectangle_union (*x, *y, *width, *height,
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tmp_x + off_x, tmp_y + off_y,
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tmp_w, tmp_h,
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x, y, width, height);
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}
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else
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{
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*x = tmp_x + off_x;
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*y = tmp_y + off_y;
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*width = tmp_w;
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*height = tmp_h;
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bounds = TRUE;
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}
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}
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}
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if (! bounds)
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{
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*x = 0;
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*y = 0;
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*width = gimp_image_get_width (image);
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*height = gimp_image_get_height (image);
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}
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return bounds;
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}
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void
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gimp_image_item_list_translate (GimpImage *image,
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GList *list,
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gint offset_x,
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gint offset_y,
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gboolean push_undo)
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{
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g_return_if_fail (GIMP_IS_IMAGE (image));
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if (list)
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{
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GList *l;
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if (push_undo && list->next)
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gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_ITEM_DISPLACE,
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C_("undo-type", "Translate Items"));
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for (l = list; l; l = g_list_next (l))
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gimp_item_translate (GIMP_ITEM (l->data),
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offset_x, offset_y, push_undo);
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if (push_undo && list->next)
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gimp_image_undo_group_end (image);
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}
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}
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void
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gimp_image_item_list_flip (GimpImage *image,
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GList *list,
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GimpContext *context,
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GimpOrientationType flip_type,
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gdouble axis,
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gboolean clip_result)
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{
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g_return_if_fail (GIMP_IS_IMAGE (image));
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g_return_if_fail (GIMP_IS_CONTEXT (context));
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if (list)
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{
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GList *l;
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if (list->next)
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gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TRANSFORM,
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C_("undo-type", "Flip Items"));
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for (l = list; l; l = g_list_next (l))
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gimp_item_flip (GIMP_ITEM (l->data), context,
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flip_type, axis, clip_result);
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if (list->next)
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gimp_image_undo_group_end (image);
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}
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}
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void
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gimp_image_item_list_rotate (GimpImage *image,
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GList *list,
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GimpContext *context,
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GimpRotationType rotate_type,
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gdouble center_x,
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gdouble center_y,
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gboolean clip_result)
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{
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g_return_if_fail (GIMP_IS_IMAGE (image));
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g_return_if_fail (GIMP_IS_CONTEXT (context));
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if (list)
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{
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GList *l;
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if (list->next)
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gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TRANSFORM,
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C_("undo-type", "Rotate Items"));
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for (l = list; l; l = g_list_next (l))
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gimp_item_rotate (GIMP_ITEM (l->data), context,
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rotate_type, center_x, center_y, clip_result);
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if (list->next)
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gimp_image_undo_group_end (image);
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}
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}
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void
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gimp_image_item_list_transform (GimpImage *image,
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GList *list,
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GimpContext *context,
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const GimpMatrix3 *matrix,
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GimpTransformDirection direction,
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GimpInterpolationType interpolation_type,
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GimpTransformResize clip_result,
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GimpProgress *progress)
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{
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g_return_if_fail (GIMP_IS_IMAGE (image));
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g_return_if_fail (GIMP_IS_CONTEXT (context));
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g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
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if (list)
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{
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GList *l;
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if (list->next)
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gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TRANSFORM,
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C_("undo-type", "Transform Items"));
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for (l = list; l; l = g_list_next (l))
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gimp_item_transform (GIMP_ITEM (l->data), context,
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matrix, direction,
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interpolation_type,
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clip_result, progress);
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if (list->next)
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gimp_image_undo_group_end (image);
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}
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}
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/**
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* gimp_image_item_list_get_list:
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* @image: An @image.
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* @type: Which type of items to return.
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* @set: Set the returned items are part of.
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*
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* This function returns a #GList of #GimpItem<!-- -->s for which the
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* @type and @set criterions match.
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*
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* Return value: The list of items.
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**/
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GList *
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gimp_image_item_list_get_list (GimpImage *image,
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GimpItemTypeMask type,
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GimpItemSet set)
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{
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GList *all_items;
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GList *list;
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GList *return_list = NULL;
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g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
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if (type & GIMP_ITEM_TYPE_LAYERS)
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{
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all_items = gimp_image_get_layer_list (image);
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for (list = all_items; list; list = g_list_next (list))
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{
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GimpItem *item = list->data;
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if (gimp_item_is_in_set (item, set))
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return_list = g_list_prepend (return_list, item);
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}
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g_list_free (all_items);
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}
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if (type & GIMP_ITEM_TYPE_CHANNELS)
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{
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all_items = gimp_image_get_channel_list (image);
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for (list = all_items; list; list = g_list_next (list))
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{
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GimpItem *item = list->data;
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if (gimp_item_is_in_set (item, set))
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return_list = g_list_prepend (return_list, item);
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}
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g_list_free (all_items);
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}
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if (type & GIMP_ITEM_TYPE_VECTORS)
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{
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all_items = gimp_image_get_vectors_list (image);
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for (list = all_items; list; list = g_list_next (list))
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{
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GimpItem *item = list->data;
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if (gimp_item_is_in_set (item, set))
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return_list = g_list_prepend (return_list, item);
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}
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g_list_free (all_items);
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}
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return g_list_reverse (return_list);
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}
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static GList *
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gimp_image_item_list_remove_children (GList *list,
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const GimpItem *parent)
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{
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GList *l = list;
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while (l)
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{
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GimpItem *item = l->data;
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l = g_list_next (l);
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if (gimp_viewable_is_ancestor (GIMP_VIEWABLE (parent),
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GIMP_VIEWABLE (item)))
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{
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list = g_list_remove (list, item);
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}
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}
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return list;
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}
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GList *
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gimp_image_item_list_filter (GList *list)
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{
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GList *l;
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if (! list)
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return NULL;
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for (l = list; l; l = g_list_next (l))
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{
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GimpItem *item = l->data;
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GList *next;
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next = gimp_image_item_list_remove_children (g_list_next (l), item);
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l->next = next;
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if (next)
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next->prev = l;
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}
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return list;
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}
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