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app: in gimp:replace, implement GeglOperation::get_bounding_box() 

... similarly to gimp:layer-mode, however, assume the destnation
(backdrop) is not included when the layer's opacity is 1, and
there's no mask.
This commit is contained in:
Ell 2019-08-01 23:39:51 +03:00
parent 89c97bcf26
commit 998f89e3cb
1 changed files with 55 additions and 0 deletions
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55
app/operations/layer-modes/gimpoperationreplace.c
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@ -30,6 +30,7 @@
#include "gimpoperationreplace.h"
static GeglRectangle gimp_operation_replace_get_bounding_box (GeglOperation *op);
static gboolean gimp_operation_replace_parent_process (GeglOperation *op,
GeglOperationContext *context,
const gchar *output_prop,
@ -64,6 +65,7 @@ gimp_operation_replace_class_init (GimpOperationReplaceClass *klass)
"description", "GIMP replace mode operation",
NULL);
operation_class->get_bounding_box = gimp_operation_replace_get_bounding_box;
operation_class->process = gimp_operation_replace_parent_process;
layer_mode_class->process = gimp_operation_replace_process;
@ -75,6 +77,59 @@ gimp_operation_replace_init (GimpOperationReplace *self)
{
}
static GeglRectangle
gimp_operation_replace_get_bounding_box (GeglOperation *op)
{
GimpOperationLayerMode *self = (gpointer) op;
GeglRectangle *in_rect;
GeglRectangle *aux_rect;
GeglRectangle *aux2_rect;
GeglRectangle src_rect = {};
GeglRectangle dst_rect = {};
GeglRectangle result;
GimpLayerCompositeRegion included_region;
in_rect = gegl_operation_source_get_bounding_box (op, "input");
aux_rect = gegl_operation_source_get_bounding_box (op, "aux");
aux2_rect = gegl_operation_source_get_bounding_box (op, "aux2");
if (in_rect)
dst_rect = *in_rect;
if (aux_rect)
{
src_rect = *aux_rect;
if (aux2_rect)
gegl_rectangle_intersect (&src_rect, &src_rect, aux2_rect);
}
if (self->is_last_node)
{
included_region = GIMP_LAYER_COMPOSITE_REGION_SOURCE;
}
else
{
included_region = gimp_layer_mode_get_included_region (self->layer_mode,
self->composite_mode);
}
if (self->opacity == 0.0)
included_region &= ~GIMP_LAYER_COMPOSITE_REGION_SOURCE;
else if (self->opacity == 1.0 && ! aux2_rect)
included_region &= ~GIMP_LAYER_COMPOSITE_REGION_DESTINATION;
gegl_rectangle_intersect (&result, &src_rect, &dst_rect);
if (included_region & GIMP_LAYER_COMPOSITE_REGION_SOURCE)
gegl_rectangle_bounding_box (&result, &result, &src_rect);
if (included_region & GIMP_LAYER_COMPOSITE_REGION_DESTINATION)
gegl_rectangle_bounding_box (&result, &result, &dst_rect);
return result;
}
static gboolean
gimp_operation_replace_parent_process (GeglOperation *op,
GeglOperationContext *context,