mirror of https://github.com/GNOME/gimp.git
110 lines
2.9 KiB
C
110 lines
2.9 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 <gegl.h>
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#include "core-types.h"
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#include "gimpgrouplayer.h"
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#include "gimpimage.h"
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#include "gimpimage-pick-layer.h"
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#include "gimppickable.h"
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#include "text/gimptextlayer.h"
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GimpLayer *
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gimp_image_pick_layer (const GimpImage *image,
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gint x,
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gint y)
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{
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GList *all_layers;
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GList *list;
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g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
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all_layers = gimp_image_get_layer_list (image);
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for (list = all_layers; list; list = g_list_next (list))
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{
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GimpLayer *layer = list->data;
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gint off_x, off_y;
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gimp_item_get_offset (GIMP_ITEM (layer), &off_x, &off_y);
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if (gimp_pickable_get_opacity_at (GIMP_PICKABLE (layer),
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x - off_x, y - off_y) > 63)
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{
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g_list_free (all_layers);
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return layer;
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}
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}
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g_list_free (all_layers);
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return NULL;
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}
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GimpTextLayer *
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gimp_image_pick_text_layer (const GimpImage *image,
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gint x,
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gint y)
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{
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GList *all_layers;
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GList *list;
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g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
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all_layers = gimp_image_get_layer_list (image);
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for (list = all_layers; list; list = g_list_next (list))
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{
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GimpLayer *layer = list->data;
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gint off_x, off_y;
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gimp_item_get_offset (GIMP_ITEM (layer), &off_x, &off_y);
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if (GIMP_IS_TEXT_LAYER (layer) &&
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x >= off_x &&
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y >= off_y &&
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x < off_x + gimp_item_get_width (GIMP_ITEM (layer)) &&
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y < off_y + gimp_item_get_height (GIMP_ITEM (layer)))
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{
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g_list_free (all_layers);
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return GIMP_TEXT_LAYER (layer);
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}
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else if (! GIMP_IS_GROUP_LAYER (layer) &&
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gimp_pickable_get_opacity_at (GIMP_PICKABLE (layer),
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x - off_x, y - off_y) > 63)
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{
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/* a normal layer covers any possible text layers below,
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* bail out
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*/
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break;
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}
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}
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g_list_free (all_layers);
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return NULL;
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}
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