void
gimp_image_item_list_transform (GimpImage *image,
GList *list,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
GimpTransformResize clip_result,
GimpProgress *progress)
{
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));
if (list)
{
GList *l;
if (list->next)
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TRANSFORM,
C_("undo-type", "Transform Items"));
for (l = list; l; l = g_list_next (l))
gimp_item_transform (GIMP_ITEM (l->data), context,
matrix, direction,
interpolation_type,
clip_result, progress);
if (list->next)
gimp_image_undo_group_end (image);
}
}
void
gimp_image_item_list_transform (GimpImage *image,
GList *list,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
GimpTransformResize clip_result,
GimpProgress *progress)
{
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));
if (list)
{
GimpObjectQueue *queue = NULL;
GList *l;
if (progress)
{
queue = gimp_object_queue_new (progress);
progress = GIMP_PROGRESS (queue);
gimp_object_queue_push_list (queue, list);
}
if (list->next)
{
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TRANSFORM,
C_("undo-type", "Transform Items"));
for (l = list; l; l = g_list_next (l))
gimp_item_start_transform (GIMP_ITEM (l->data), TRUE);
}
for (l = list; l; l = g_list_next (l))
{
if (queue)
gimp_object_queue_pop (queue);
gimp_item_transform (GIMP_ITEM (l->data), context,
matrix, direction,
interpolation_type,
clip_result, progress);
}
if (list->next)
{
for (l = list; l; l = g_list_next (l))
gimp_item_end_transform (GIMP_ITEM (l->data), TRUE);
gimp_image_undo_group_end (image);
}
g_clear_object (&queue);
}
}
GimpDrawable *
gimp_drawable_transform_affine (GimpDrawable *drawable,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
gint recursion_level,
GimpTransformResize clip_result,
GimpProgress *progress)
{
GimpImage *image;
GeglBuffer *orig_buffer;
gint orig_offset_x;
gint orig_offset_y;
gboolean new_layer;
GimpDrawable *result = NULL;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (matrix != NULL, NULL);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
/* Start a transform undo group */
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_TRANSFORM,
C_("undo-type", "Transform"));
/* Cut/Copy from the specified drawable */
orig_buffer = gimp_drawable_transform_cut (drawable, context,
&orig_offset_x, &orig_offset_y,
&new_layer);
if (orig_buffer)
{
GeglBuffer *new_buffer;
gint new_offset_x;
gint new_offset_y;
/* always clip unfloated buffers so they keep their size */
if (GIMP_IS_CHANNEL (drawable) &&
! babl_format_has_alpha (gegl_buffer_get_format (orig_buffer)))
clip_result = GIMP_TRANSFORM_RESIZE_CLIP;
/* also transform the mask if we are transforming an entire layer */
if (GIMP_IS_LAYER (drawable) &&
gimp_layer_get_mask (GIMP_LAYER (drawable)) &&
gimp_channel_is_empty (gimp_image_get_mask (image)))
{
GimpLayerMask *mask = gimp_layer_get_mask (GIMP_LAYER (drawable));
gimp_item_transform (GIMP_ITEM (mask), context,
matrix,
direction,
interpolation_type,
recursion_level,
clip_result,
progress);
}
/* transform the buffer */
new_buffer = gimp_drawable_transform_buffer_affine (drawable, context,
orig_buffer,
orig_offset_x,
orig_offset_y,
matrix,
direction,
interpolation_type,
recursion_level,
clip_result,
&new_offset_x,
&new_offset_y,
progress);
/* Free the cut/copied buffer */
g_object_unref (orig_buffer);
if (new_buffer)
{
result = gimp_drawable_transform_paste (drawable, new_buffer,
new_offset_x, new_offset_y,
new_layer);
g_object_unref (new_buffer);
}
}
/* push the undo group end */
gimp_image_undo_group_end (image);
return result;
}
static GimpValueArray *
transform_2d_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GimpValueArray *args,
GError **error)
{
gboolean success = TRUE;
GimpValueArray *return_vals;
GimpDrawable *drawable;
gboolean interpolation;
gdouble source_x;
gdouble source_y;
gdouble scale_x;
gdouble scale_y;
gdouble angle;
gdouble dest_x;
gdouble dest_y;
drawable = gimp_value_get_drawable (gimp_value_array_index (args, 0), gimp);
interpolation = g_value_get_boolean (gimp_value_array_index (args, 1));
source_x = g_value_get_double (gimp_value_array_index (args, 2));
source_y = g_value_get_double (gimp_value_array_index (args, 3));
scale_x = g_value_get_double (gimp_value_array_index (args, 4));
scale_y = g_value_get_double (gimp_value_array_index (args, 5));
angle = g_value_get_double (gimp_value_array_index (args, 6));
dest_x = g_value_get_double (gimp_value_array_index (args, 7));
dest_y = g_value_get_double (gimp_value_array_index (args, 8));
if (success)
{
gint x, y, width, height;
success = gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error);
if (success &&
gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
{
GimpMatrix3 matrix;
GimpInterpolationType interpolation_type = GIMP_INTERPOLATION_NONE;
/* Assemble the transformation matrix */
gimp_matrix3_identity (&matrix);
gimp_matrix3_translate (&matrix, -source_x, -source_y);
gimp_matrix3_scale (&matrix, scale_x, scale_y);
gimp_matrix3_rotate (&matrix, angle);
gimp_matrix3_translate (&matrix, dest_x, dest_y);
if (interpolation)
interpolation_type = gimp->config->interpolation_type;
if (progress)
gimp_progress_start (progress, _("2D Transform"), FALSE);
if (! gimp_viewable_get_children (GIMP_VIEWABLE (drawable)) &&
! gimp_channel_is_empty (gimp_image_get_mask (gimp_item_get_image (GIMP_ITEM (drawable)))))
{
if (! gimp_drawable_transform_affine (drawable, context,
&matrix, GIMP_TRANSFORM_FORWARD,
interpolation_type, 3,
FALSE, progress))
{
success = FALSE;
}
}
else
{
gimp_item_transform (GIMP_ITEM (drawable), context, &matrix,
GIMP_TRANSFORM_FORWARD,
interpolation, 3,
FALSE, progress);
}
if (progress)
gimp_progress_end (progress);
}
}
return_vals = gimp_procedure_get_return_values (procedure, success,
error ? *error : NULL);
if (success)
gimp_value_set_drawable (gimp_value_array_index (return_vals, 1), drawable);
return return_vals;
}
static GimpValueArray *
shear_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GimpValueArray *args,
GError **error)
{
gboolean success = TRUE;
GimpValueArray *return_vals;
GimpDrawable *drawable;
gboolean interpolation;
gint32 shear_type;
gdouble magnitude;
drawable = gimp_value_get_drawable (gimp_value_array_index (args, 0), gimp);
interpolation = g_value_get_boolean (gimp_value_array_index (args, 1));
shear_type = g_value_get_enum (gimp_value_array_index (args, 2));
magnitude = g_value_get_double (gimp_value_array_index (args, 3));
if (success)
{
gint x, y, width, height;
success = gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error);
if (success &&
gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
{
GimpMatrix3 matrix;
GimpInterpolationType interpolation_type = GIMP_INTERPOLATION_NONE;
gint off_x, off_y;
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
x += off_x;
y += off_y;
/* Assemble the transformation matrix */
gimp_matrix3_identity (&matrix);
gimp_transform_matrix_shear (&matrix,
x, y, width, height,
shear_type, magnitude);
if (interpolation)
interpolation_type = gimp->config->interpolation_type;
if (progress)
gimp_progress_start (progress, _("Shearing"), FALSE);
if (! gimp_viewable_get_children (GIMP_VIEWABLE (drawable)) &&
! gimp_channel_is_empty (gimp_image_get_mask (gimp_item_get_image (GIMP_ITEM (drawable)))))
{
if (! gimp_drawable_transform_affine (drawable, context,
&matrix,
GIMP_TRANSFORM_FORWARD,
interpolation_type, 3,
FALSE, progress))
{
success = FALSE;
}
}
else
{
gimp_item_transform (GIMP_ITEM (drawable), context, &matrix,
GIMP_TRANSFORM_FORWARD,
interpolation, 3,
FALSE, progress);
}
if (progress)
gimp_progress_end (progress);
}
}
return_vals = gimp_procedure_get_return_values (procedure, success,
error ? *error : NULL);
if (success)
gimp_value_set_drawable (gimp_value_array_index (return_vals, 1), drawable);
return return_vals;
}
