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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/vectors/gimpvectors-preview.c | |
parent | Initial commit. (diff) | |
download | gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.tar.xz gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.zip |
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | app/vectors/gimpvectors-preview.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/app/vectors/gimpvectors-preview.c b/app/vectors/gimpvectors-preview.c new file mode 100644 index 0000000..988148a --- /dev/null +++ b/app/vectors/gimpvectors-preview.c @@ -0,0 +1,93 @@ +/* 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 <string.h> + +#include <gdk-pixbuf/gdk-pixbuf.h> +#include <gegl.h> + +#include "vectors-types.h" + +#include "libgimpmath/gimpmath.h" + +#include "core/gimpimage.h" +#include "core/gimptempbuf.h" + +#include "gimpstroke.h" +#include "gimpvectors.h" +#include "gimpvectors-preview.h" + + +/* public functions */ + +GimpTempBuf * +gimp_vectors_get_new_preview (GimpViewable *viewable, + GimpContext *context, + gint width, + gint height) +{ + GimpVectors *vectors; + GimpItem *item; + GimpStroke *cur_stroke; + gdouble xscale, yscale; + guchar *data; + GimpTempBuf *temp_buf; + + vectors = GIMP_VECTORS (viewable); + item = GIMP_ITEM (viewable); + + xscale = ((gdouble) width) / gimp_image_get_width (gimp_item_get_image (item)); + yscale = ((gdouble) height) / gimp_image_get_height (gimp_item_get_image (item)); + + temp_buf = gimp_temp_buf_new (width, height, babl_format ("Y' u8")); + data = gimp_temp_buf_get_data (temp_buf); + memset (data, 255, width * height); + + for (cur_stroke = gimp_vectors_stroke_get_next (vectors, NULL); + cur_stroke; + cur_stroke = gimp_vectors_stroke_get_next (vectors, cur_stroke)) + { + GArray *coords; + gboolean closed; + gint i; + + coords = gimp_stroke_interpolate (cur_stroke, 0.5, &closed); + + if (coords) + { + for (i = 0; i < coords->len; i++) + { + GimpCoords point; + gint x, y; + + point = g_array_index (coords, GimpCoords, i); + + x = ROUND (point.x * xscale); + y = ROUND (point.y * yscale); + + if (x >= 0 && y >= 0 && x < width && y < height) + data[y * width + x] = 0; + } + + g_array_free (coords, TRUE); + } + } + + return temp_buf; +} |