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Diffstat (limited to 'app/core/gimpimage-sample-points.c')
| -rw-r--r-- | app/core/gimpimage-sample-points.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/app/core/gimpimage-sample-points.c b/app/core/gimpimage-sample-points.c new file mode 100644 index 0000000..24fc66f --- /dev/null +++ b/app/core/gimpimage-sample-points.c @@ -0,0 +1,213 @@ +/* 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 "core-types.h" + +#include "gimp.h" +#include "gimpimage.h" +#include "gimpimage-private.h" +#include "gimpimage-sample-points.h" +#include "gimpimage-undo-push.h" +#include "gimpsamplepoint.h" + +#include "gimp-intl.h" + + +/* public functions */ + +GimpSamplePoint * +gimp_image_add_sample_point_at_pos (GimpImage *image, + gint x, + gint y, + gboolean push_undo) +{ + GimpSamplePoint *sample_point; + + g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL); + g_return_val_if_fail (x >= 0 && x < gimp_image_get_width (image), NULL); + g_return_val_if_fail (y >= 0 && y < gimp_image_get_height (image), NULL); + + sample_point = gimp_sample_point_new (image->gimp->next_sample_point_ID++); + + if (push_undo) + gimp_image_undo_push_sample_point (image, C_("undo-type", "Add Sample Point"), + sample_point); + + gimp_image_add_sample_point (image, sample_point, x, y); + g_object_unref (sample_point); + + return sample_point; +} + +void +gimp_image_add_sample_point (GimpImage *image, + GimpSamplePoint *sample_point, + gint x, + gint y) +{ + GimpImagePrivate *private; + + g_return_if_fail (GIMP_IS_IMAGE (image)); + g_return_if_fail (GIMP_IS_SAMPLE_POINT (sample_point)); + + private = GIMP_IMAGE_GET_PRIVATE (image); + + private->sample_points = g_list_append (private->sample_points, sample_point); + + gimp_sample_point_set_position (sample_point, x, y); + g_object_ref (sample_point); + + gimp_image_sample_point_added (image, sample_point); +} + +void +gimp_image_remove_sample_point (GimpImage *image, + GimpSamplePoint *sample_point, + gboolean push_undo) +{ + GimpImagePrivate *private; + + g_return_if_fail (GIMP_IS_IMAGE (image)); + g_return_if_fail (GIMP_IS_SAMPLE_POINT (sample_point)); + + private = GIMP_IMAGE_GET_PRIVATE (image); + + if (push_undo) + gimp_image_undo_push_sample_point (image, + C_("undo-type", "Remove Sample Point"), + sample_point); + + private->sample_points = g_list_remove (private->sample_points, sample_point); + gimp_aux_item_removed (GIMP_AUX_ITEM (sample_point)); + + gimp_image_sample_point_removed (image, sample_point); + + gimp_sample_point_set_position (sample_point, + GIMP_SAMPLE_POINT_POSITION_UNDEFINED, + GIMP_SAMPLE_POINT_POSITION_UNDEFINED); + g_object_unref (sample_point); +} + +void +gimp_image_move_sample_point (GimpImage *image, + GimpSamplePoint *sample_point, + gint x, + gint y, + gboolean push_undo) +{ + g_return_if_fail (GIMP_IS_IMAGE (image)); + g_return_if_fail (GIMP_IS_SAMPLE_POINT (sample_point)); + g_return_if_fail (x >= 0); + g_return_if_fail (y >= 0); + g_return_if_fail (x < gimp_image_get_width (image)); + g_return_if_fail (y < gimp_image_get_height (image)); + + if (push_undo) + gimp_image_undo_push_sample_point (image, + C_("undo-type", "Move Sample Point"), + sample_point); + + gimp_sample_point_set_position (sample_point, x, y); + + gimp_image_sample_point_moved (image, sample_point); +} + +void +gimp_image_set_sample_point_pick_mode (GimpImage *image, + GimpSamplePoint *sample_point, + GimpColorPickMode pick_mode, + gboolean push_undo) +{ + g_return_if_fail (GIMP_IS_IMAGE (image)); + g_return_if_fail (GIMP_IS_SAMPLE_POINT (sample_point)); + + if (push_undo) + gimp_image_undo_push_sample_point (image, + C_("undo-type", + "Set Sample Point Pick Mode"), + sample_point); + + gimp_sample_point_set_pick_mode (sample_point, pick_mode); + + /* well... */ + gimp_image_sample_point_moved (image, sample_point); +} + +GList * +gimp_image_get_sample_points (GimpImage *image) +{ + g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL); + + return GIMP_IMAGE_GET_PRIVATE (image)->sample_points; +} + +GimpSamplePoint * +gimp_image_get_sample_point (GimpImage *image, + guint32 id) +{ + GList *sample_points; + + g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL); + + for (sample_points = GIMP_IMAGE_GET_PRIVATE (image)->sample_points; + sample_points; + sample_points = g_list_next (sample_points)) + { + GimpSamplePoint *sample_point = sample_points->data; + + if (gimp_aux_item_get_ID (GIMP_AUX_ITEM (sample_point)) == id) + return sample_point; + } + + return NULL; +} + +GimpSamplePoint * +gimp_image_get_next_sample_point (GimpImage *image, + guint32 id, + gboolean *sample_point_found) +{ + GList *sample_points; + + g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL); + g_return_val_if_fail (sample_point_found != NULL, NULL); + + if (id == 0) + *sample_point_found = TRUE; + else + *sample_point_found = FALSE; + + for (sample_points = GIMP_IMAGE_GET_PRIVATE (image)->sample_points; + sample_points; + sample_points = g_list_next (sample_points)) + { + GimpSamplePoint *sample_point = sample_points->data; + + if (*sample_point_found) /* this is the first guide after the found one */ + return sample_point; + + if (gimp_aux_item_get_ID (GIMP_AUX_ITEM (sample_point)) == id) /* found it, next one will be returned */ + *sample_point_found = TRUE; + } + + return NULL; +} |