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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:30:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:30:19 +0000 |
commit | 5c1676dfe6d2f3c837a5e074117b45613fd29a72 (patch) | |
tree | cbffb45144febf451e54061db2b21395faf94bfe /app/core/gimpdrawable-shadow.c | |
parent | Initial commit. (diff) | |
download | gimp-upstream.tar.xz gimp-upstream.zip |
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'app/core/gimpdrawable-shadow.c')
-rw-r--r-- | app/core/gimpdrawable-shadow.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/app/core/gimpdrawable-shadow.c b/app/core/gimpdrawable-shadow.c new file mode 100644 index 0000000..4c42655 --- /dev/null +++ b/app/core/gimpdrawable-shadow.c @@ -0,0 +1,110 @@ +/* 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 <gdk-pixbuf/gdk-pixbuf.h> +#include <gegl.h> +#include <cairo.h> + +#include "core-types.h" + +#include "gegl/gimp-gegl-utils.h" + +#include "gimpdrawable.h" +#include "gimpdrawable-private.h" +#include "gimpdrawable-shadow.h" + + +GeglBuffer * +gimp_drawable_get_shadow_buffer (GimpDrawable *drawable) +{ + GimpItem *item; + gint width; + gint height; + const Babl *format; + + g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL); + + item = GIMP_ITEM (drawable); + + width = gimp_item_get_width (item); + height = gimp_item_get_height (item); + format = gimp_drawable_get_format (drawable); + + if (drawable->private->shadow) + { + if ((width != gegl_buffer_get_width (drawable->private->shadow)) || + (height != gegl_buffer_get_height (drawable->private->shadow)) || + (format != gegl_buffer_get_format (drawable->private->shadow))) + { + gimp_drawable_free_shadow_buffer (drawable); + } + else + { + return drawable->private->shadow; + } + } + + drawable->private->shadow = gegl_buffer_new (GEGL_RECTANGLE (0, 0, + width, height), + format); + + return drawable->private->shadow; +} + +void +gimp_drawable_free_shadow_buffer (GimpDrawable *drawable) +{ + g_return_if_fail (GIMP_IS_DRAWABLE (drawable)); + + g_clear_object (&drawable->private->shadow); +} + +void +gimp_drawable_merge_shadow_buffer (GimpDrawable *drawable, + gboolean push_undo, + const gchar *undo_desc) +{ + gint x, y; + gint width, height; + + g_return_if_fail (GIMP_IS_DRAWABLE (drawable)); + g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable))); + g_return_if_fail (GEGL_IS_BUFFER (drawable->private->shadow)); + + /* A useful optimization here is to limit the update to the + * extents of the selection mask, as it cannot extend beyond + * them. + */ + if (gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height)) + { + GeglBuffer *buffer = g_object_ref (drawable->private->shadow); + + gimp_drawable_apply_buffer (drawable, buffer, + GEGL_RECTANGLE (x, y, width, height), + push_undo, undo_desc, + GIMP_OPACITY_OPAQUE, + GIMP_LAYER_MODE_REPLACE, + GIMP_LAYER_COLOR_SPACE_AUTO, + GIMP_LAYER_COLOR_SPACE_AUTO, + GIMP_LAYER_COMPOSITE_AUTO, + NULL, x, y); + + g_object_unref (buffer); + } +} |