/* --------------------------
* p_create_corpus_layer
* --------------------------
* create the corpus layer that builds the reference pattern
* for the resynthesizer call. The reference pattern is built
* as duplicate of the original image reduced to the area around the current selection.
* (grown by corpus_border_radius)
* Note that the duplicate image has a selection, that includes the gorwn area
* around the orignal selection, but EXCLUDES the original selection
* (that is the area holding the object that has to be replaced
* by pattern of the surrounding area)
* returns the layer_id of the reference pattern.
*/
static gint32
p_create_corpus_layer(gint32 image_id, gint32 drawable_id, TransValues *val_ptr)
{
gint32 dup_image_id;
gint32 channel_id;
gint32 channel_2_id;
GimpRGB bck_color;
GimpRGB white_opaque_color;
/* gboolean has_selection; */
gboolean non_empty;
gint x1, y1, x2, y2;
gint32 active_layer_stackposition;
gint32 active_dup_layer_id;
active_layer_stackposition = gap_layer_get_stackposition(image_id, drawable_id);
dup_image_id = gimp_image_duplicate(image_id);
channel_id = gimp_selection_save(dup_image_id);
gimp_selection_grow(dup_image_id, val_ptr->corpus_border_radius);
gimp_selection_invert(dup_image_id);
gimp_context_get_background(&bck_color);
channel_2_id = gimp_selection_save(dup_image_id);
gimp_image_select_item(dup_image_id, GIMP_CHANNEL_OP_REPLACE, channel_id);
gimp_rgba_set_uchar (&white_opaque_color, 255, 255, 255, 255);
gimp_context_set_background(&white_opaque_color);
gimp_edit_clear(channel_2_id);
gimp_context_set_background(&bck_color); /* restore original background color */
gimp_selection_load(channel_2_id);
gimp_selection_invert(dup_image_id);
/* has_selection = */ gimp_selection_bounds(dup_image_id, &non_empty, &x1, &y1, &x2, &y2);
gimp_image_crop(dup_image_id, (x2 - x1), (y2 - y1), x1, y1);
gimp_selection_invert(dup_image_id);
active_dup_layer_id = gap_layer_get_id_by_stackposition(dup_image_id, active_layer_stackposition);
if (1==0)
{
/* debug code shows the duplicate image by adding a display */
gimp_display_new(dup_image_id);
}
return (active_dup_layer_id);
} /* end p_create_corpus_layer */
void
gimp_image_set_quick_mask_state (GimpImage *image,
gboolean active)
{
GimpChannel *selection;
GimpChannel *mask;
gboolean channel_was_active;
g_return_if_fail (GIMP_IS_IMAGE (image));
if (active == gimp_image_get_quick_mask_state (image))
return;
/* Keep track of the state so that we can make the right drawable
* active again when deactiviting quick mask (see bug #134371).
*/
if (image->quick_mask_state)
channel_was_active = (image->quick_mask_state & CHANNEL_WAS_ACTIVE) != 0;
else
channel_was_active = gimp_image_get_active_channel (image) != NULL;
/* Set image->quick_mask_state early so we can return early when
* being called recursively.
*/
image->quick_mask_state = (active
? TRUE | (channel_was_active ?
CHANNEL_WAS_ACTIVE : 0)
: FALSE);
selection = gimp_image_get_mask (image);
mask = gimp_image_get_quick_mask (image);
if (active)
{
if (! mask)
{
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_QUICK_MASK,
_("Enable Quick Mask"));
if (gimp_channel_is_empty (selection))
{
/* if no selection */
GimpLayer *floating_sel = gimp_image_floating_sel (image);
if (floating_sel)
floating_sel_to_layer (floating_sel);
mask = gimp_channel_new (image,
image->width,
image->height,
GIMP_IMAGE_QUICK_MASK_NAME,
&image->quick_mask_color);
/* Clear the mask */
gimp_channel_clear (mask, NULL, FALSE);
}
else
{
/* if selection */
mask = GIMP_CHANNEL (gimp_item_duplicate (GIMP_ITEM (selection),
GIMP_TYPE_CHANNEL,
FALSE));
/* Clear the selection */
gimp_channel_clear (selection, NULL, TRUE);
gimp_channel_set_color (mask, &image->quick_mask_color, FALSE);
gimp_item_rename (GIMP_ITEM (mask), GIMP_IMAGE_QUICK_MASK_NAME);
}
if (image->quick_mask_inverted)
gimp_channel_invert (mask, FALSE);
gimp_image_add_channel (image, mask, 0);
gimp_image_undo_group_end (image);
}
}
else
{
if (mask)
{
GimpLayer *floating_sel = gimp_image_floating_sel (image);
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_QUICK_MASK,
_("Disable Quick Mask"));
if (image->quick_mask_inverted)
gimp_channel_invert (mask, TRUE);
if (floating_sel && floating_sel->fs.drawable == GIMP_DRAWABLE (mask))
floating_sel_anchor (floating_sel);
gimp_selection_load (gimp_image_get_mask (image), mask);
gimp_image_remove_channel (image, mask);
if (! channel_was_active)
gimp_image_unset_active_channel (image);
gimp_image_undo_group_end (image);
}
}
gimp_image_quick_mask_changed (image);
}
/* --------------------------------------------
* gap_fg_from_selection_exec_apply_run
* --------------------------------------------
* generate a tri map from the current selection by filling the shrinked
* shape with white, the expanded shape with black and the borderline
* between shrinked and expanded selection with medium gray.
* the trimap is attached as layermask to the input drawable,
* and used as input for the foreground selection via alpha matting algorithm,
* that creates a resulting layer with trimmed selection.
*
*/
gint
gap_fg_from_selection_exec_apply_run (gint32 image_id, gint32 drawable_id
, gboolean doProgress, gboolean doFlush
, GapFgSelectValues *fsValPtr)
{
GimpRGB color;
gint32 activeSelection;
gint32 shrinkedSelection;
gint32 trimap;
gboolean hadSelection;
gint rc;
rc = 0;
trimap = -1;
activeSelection = -1;
shrinkedSelection = -1;
hadSelection = FALSE;
gimp_context_push();
gimp_image_undo_group_start(image_id);
if (gimp_selection_is_empty(image_id) == TRUE)
{
if (gimp_drawable_has_alpha(drawable_id) == FALSE)
{
/* if the layer has no alpha select all */
gimp_selection_all(image_id);
}
else
{
gimp_selection_layer_alpha(drawable_id);
}
activeSelection = gimp_selection_save(image_id);
}
else
{
activeSelection = gimp_selection_save(image_id);
hadSelection = TRUE;
}
trimap = gimp_layer_get_mask(drawable_id);
if (trimap < 0)
{
/* create trimap as new layermask */
trimap = gimp_layer_create_mask(drawable_id, GIMP_ADD_BLACK_MASK);
gimp_layer_add_mask(drawable_id, trimap);
}
else
{
/* use BLACK color to fill the already existing layermask
* (note that gimp_drawable_fill is used to fill the entire mask
* regardless to the current selection)
*/
color.r = 0.0;
color.g = 0.0;
color.b = 0.0;
color.a = 1.0;
gimp_context_set_background (&color);
gimp_drawable_fill(trimap, GIMP_BACKGROUND_FILL);
}
gimp_selection_sharpen(image_id);
if (fsValPtr->innerRadius > 0)
{
gimp_selection_shrink(image_id, fsValPtr->innerRadius);
}
shrinkedSelection = gimp_selection_save(image_id);
/* use WHITE color to mark foreground regions
*/
color.r = 1.0;
color.g = 1.0;
color.b = 1.0;
color.a = 1.0;
gimp_context_set_background (&color);
gimp_edit_fill(trimap, GIMP_BACKGROUND_FILL);
gimp_selection_load(activeSelection);
gimp_selection_sharpen(image_id);
if (fsValPtr->outerRadius > 0)
{
gimp_selection_grow(image_id, fsValPtr->outerRadius);
}
gimp_selection_combine(shrinkedSelection, GIMP_CHANNEL_OP_SUBTRACT);
/* use medium GRAY to mark undefined regions
*/
color.r = 0.5;
color.g = 0.5;
color.b = 0.5;
color.a = 1.0;
gimp_context_set_background (&color);
gimp_edit_fill(trimap, GIMP_BACKGROUND_FILL);
gimp_selection_none(image_id);
/* perform the foreground selection (that creates the resulting layer) */
{
GapFgExtractValues fgExtractValues;
GapFgExtractValues *fgValPtr;
fgValPtr = &fgExtractValues;
fgValPtr->input_drawable_id = drawable_id;
fgValPtr->tri_map_drawable_id = trimap;
fgValPtr->create_result = TRUE;
fgValPtr->create_layermask = fsValPtr->create_layermask;
fgValPtr->lock_color = fsValPtr->lock_color;
fgValPtr->colordiff_threshold = fsValPtr->colordiff_threshold;
rc = gap_fg_matting_exec_apply_run (image_id, drawable_id
, doProgress, doFlush
, fgValPtr
);
}
/* restore original selection */
if (hadSelection == TRUE)
{
gimp_selection_load(activeSelection);
}
gimp_image_undo_group_end(image_id);
gimp_context_pop();
return (rc);
} /* end gap_fg_from_selection_exec_apply_run */