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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/gimpimage-flip.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/core/gimpimage-flip.c | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/app/core/gimpimage-flip.c b/app/core/gimpimage-flip.c new file mode 100644 index 0000000..5db05fe --- /dev/null +++ b/app/core/gimpimage-flip.c @@ -0,0 +1,276 @@ +/* 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 "libgimpmath/gimpmath.h" + +#include "core-types.h" + +#include "gimp.h" +#include "gimpchannel.h" +#include "gimpcontainer.h" +#include "gimpcontext.h" +#include "gimpguide.h" +#include "gimpimage.h" +#include "gimpimage-flip.h" +#include "gimpimage-guides.h" +#include "gimpimage-sample-points.h" +#include "gimpimage-undo.h" +#include "gimpimage-undo-push.h" +#include "gimpitem.h" +#include "gimpobjectqueue.h" +#include "gimpprogress.h" +#include "gimpsamplepoint.h" + + +/* local function prototypes */ + +static void gimp_image_flip_guides (GimpImage *image, + GimpOrientationType flip_type, + gdouble axis); +static void gimp_image_flip_sample_points (GimpImage *image, + GimpOrientationType flip_type, + gdouble axis); + + +/* private functions */ + +static void +gimp_image_flip_guides (GimpImage *image, + GimpOrientationType flip_type, + gdouble axis) +{ + gint width = gimp_image_get_width (image); + gint height = gimp_image_get_height (image); + GList *iter; + + for (iter = gimp_image_get_guides (image); iter;) + { + GimpGuide *guide = iter->data; + gint position = gimp_guide_get_position (guide); + + iter = g_list_next (iter); + + position = SIGNED_ROUND (2.0 * axis - position); + + switch (gimp_guide_get_orientation (guide)) + { + case GIMP_ORIENTATION_HORIZONTAL: + if (flip_type == GIMP_ORIENTATION_VERTICAL) + { + if (position >= 0 && position <= height) + gimp_image_move_guide (image, guide, position, TRUE); + else + gimp_image_remove_guide (image, guide, TRUE); + } + break; + + case GIMP_ORIENTATION_VERTICAL: + if (flip_type == GIMP_ORIENTATION_HORIZONTAL) + { + if (position >= 0 && position <= width) + gimp_image_move_guide (image, guide, position, TRUE); + else + gimp_image_remove_guide (image, guide, TRUE); + } + break; + + case GIMP_ORIENTATION_UNKNOWN: + g_return_if_reached (); + } + } +} + +static void +gimp_image_flip_sample_points (GimpImage *image, + GimpOrientationType flip_type, + gdouble axis) +{ + gint width = gimp_image_get_width (image); + gint height = gimp_image_get_height (image); + GList *iter; + + for (iter = gimp_image_get_sample_points (image); iter;) + { + GimpSamplePoint *sample_point = iter->data; + gint x; + gint y; + + iter = g_list_next (iter); + + gimp_sample_point_get_position (sample_point, &x, &y); + + switch (flip_type) + { + case GIMP_ORIENTATION_HORIZONTAL: + x = SIGNED_ROUND (2.0 * axis - x); + break; + + case GIMP_ORIENTATION_VERTICAL: + y = SIGNED_ROUND (2.0 * axis - y); + break; + + case GIMP_ORIENTATION_UNKNOWN: + g_return_if_reached (); + } + + if (x >= 0 && x < width && + y >= 0 && y < height) + { + gimp_image_move_sample_point (image, sample_point, x, y, TRUE); + } + else + { + gimp_image_remove_sample_point (image, sample_point, TRUE); + } + } +} + + +/* public functions */ + +void +gimp_image_flip (GimpImage *image, + GimpContext *context, + GimpOrientationType flip_type, + GimpProgress *progress) +{ + gdouble axis = 0.0; + + g_return_if_fail (GIMP_IS_IMAGE (image)); + g_return_if_fail (GIMP_IS_CONTEXT (context)); + g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress)); + + switch (flip_type) + { + case GIMP_ORIENTATION_HORIZONTAL: + axis = gimp_image_get_width (image) / 2.0; + break; + + case GIMP_ORIENTATION_VERTICAL: + axis = gimp_image_get_height (image) / 2.0; + break; + + case GIMP_ORIENTATION_UNKNOWN: + g_return_if_reached (); + } + + gimp_image_flip_full (image, context, flip_type, axis, + GIMP_TRANSFORM_RESIZE_CLIP, progress); +} + +void +gimp_image_flip_full (GimpImage *image, + GimpContext *context, + GimpOrientationType flip_type, + gdouble axis, + gboolean clip_result, + GimpProgress *progress) +{ + GimpObjectQueue *queue; + GimpItem *item; + gint width; + gint height; + gint offset_x = 0; + gint offset_y = 0; + + g_return_if_fail (GIMP_IS_IMAGE (image)); + g_return_if_fail (GIMP_IS_CONTEXT (context)); + g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress)); + + width = gimp_image_get_width (image); + height = gimp_image_get_height (image); + + if (! clip_result) + { + switch (flip_type) + { + case GIMP_ORIENTATION_HORIZONTAL: + offset_x = SIGNED_ROUND (2.0 * axis - width); + axis = width / 2.0; + break; + + case GIMP_ORIENTATION_VERTICAL: + offset_y = SIGNED_ROUND (2.0 * axis - height); + axis = height / 2.0; + break; + + case GIMP_ORIENTATION_UNKNOWN: + g_return_if_reached (); + } + } + + gimp_set_busy (image->gimp); + + queue = gimp_object_queue_new (progress); + progress = GIMP_PROGRESS (queue); + + gimp_object_queue_push_container (queue, gimp_image_get_layers (image)); + gimp_object_queue_push (queue, gimp_image_get_mask (image)); + gimp_object_queue_push_container (queue, gimp_image_get_channels (image)); + gimp_object_queue_push_container (queue, gimp_image_get_vectors (image)); + + gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_FLIP, NULL); + + /* Flip all layers, channels (including selection mask), and vectors */ + while ((item = gimp_object_queue_pop (queue))) + { + gboolean clip = FALSE; + + if (GIMP_IS_CHANNEL (item)) + clip = clip_result; + + gimp_item_flip (item, context, flip_type, axis, clip); + + gimp_progress_set_value (progress, 1.0); + } + + /* Flip all Guides */ + gimp_image_flip_guides (image, flip_type, axis); + + /* Flip all sample points */ + gimp_image_flip_sample_points (image, flip_type, axis); + + if (offset_x || offset_y) + { + gimp_image_undo_push_image_size (image, + NULL, + offset_x, + offset_y, + width, + height); + } + + gimp_image_undo_group_end (image); + + g_object_unref (queue); + + if (offset_x || offset_y) + { + gimp_image_size_changed_detailed (image, + -offset_x, + -offset_y, + width, + height); + } + + gimp_unset_busy (image->gimp); +} |