138 lines
4.3 KiB
C
138 lines
4.3 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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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 <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 <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "libpikamath/pikamath.h"
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#include "core-types.h"
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#include "config/pikacoreconfig.h"
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#include "pika.h"
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#include "pikaimage.h"
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#include "pikaitem.h"
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#include "pikaitem-preview.h"
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/* public functions */
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void
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pika_item_get_preview_size (PikaViewable *viewable,
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gint size,
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gboolean is_popup,
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gboolean dot_for_dot,
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gint *width,
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gint *height)
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{
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PikaItem *item = PIKA_ITEM (viewable);
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PikaImage *image = pika_item_get_image (item);
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if (image && ! image->pika->config->layer_previews && ! is_popup)
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{
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*width = size;
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*height = size;
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return;
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}
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if (image && ! is_popup)
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{
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gdouble xres;
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gdouble yres;
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pika_image_get_resolution (image, &xres, &yres);
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pika_viewable_calc_preview_size (pika_image_get_width (image),
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pika_image_get_height (image),
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size,
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size,
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dot_for_dot,
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xres,
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yres,
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width,
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height,
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NULL);
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}
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else
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{
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pika_viewable_calc_preview_size (pika_item_get_width (item),
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pika_item_get_height (item),
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size,
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size,
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dot_for_dot, 1.0, 1.0,
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width,
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height,
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NULL);
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}
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}
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gboolean
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pika_item_get_popup_size (PikaViewable *viewable,
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gint width,
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gint height,
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gboolean dot_for_dot,
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gint *popup_width,
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gint *popup_height)
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{
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PikaItem *item = PIKA_ITEM (viewable);
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PikaImage *image = pika_item_get_image (item);
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if (image && ! image->pika->config->layer_previews)
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return FALSE;
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if (pika_item_get_width (item) > width ||
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pika_item_get_height (item) > height)
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{
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gboolean scaling_up;
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gdouble xres = 1.0;
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gdouble yres = 1.0;
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if (image)
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pika_image_get_resolution (image, &xres, &yres);
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pika_viewable_calc_preview_size (pika_item_get_width (item),
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pika_item_get_height (item),
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width * 2,
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height * 2,
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dot_for_dot,
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xres,
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yres,
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popup_width,
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popup_height,
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&scaling_up);
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if (scaling_up)
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{
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*popup_width = pika_item_get_width (item);
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*popup_height = pika_item_get_height (item);
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}
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return TRUE;
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}
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return FALSE;
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}
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