GimpLayerMask *
gimp_layer_mask_new (GimpImage *image,
gint width,
gint height,
const gchar *name,
const GimpRGB *color)
{
GimpLayerMask *layer_mask;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
g_return_val_if_fail (color != NULL, NULL);
layer_mask =
GIMP_LAYER_MASK (gimp_drawable_new (GIMP_TYPE_LAYER_MASK,
image, name,
0, 0, width, height,
gimp_image_get_mask_format (image)));
/* set the layer_mask color and opacity */
gimp_channel_set_color (GIMP_CHANNEL (layer_mask), color, FALSE);
gimp_channel_set_show_masked (GIMP_CHANNEL (layer_mask), TRUE);
/* selection mask variables */
GIMP_CHANNEL (layer_mask)->x2 = width;
GIMP_CHANNEL (layer_mask)->y2 = height;
return layer_mask;
}
static GValueArray *
channel_set_color_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GValueArray *args,
GError **error)
{
gboolean success = TRUE;
GimpChannel *channel;
GimpRGB color;
channel = gimp_value_get_channel (&args->values[0], gimp);
gimp_value_get_rgb (&args->values[1], &color);
if (success)
{
GimpRGB rgb_color = color;
rgb_color.a = channel->color.a;
gimp_channel_set_color (channel, &rgb_color, TRUE);
}
return gimp_procedure_get_return_values (procedure, success,
error ? *error : NULL);
}
void
gimp_image_set_quick_mask_color (GimpImage *image,
const GimpRGB *color)
{
GimpChannel *quick_mask;
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (color != NULL);
image->quick_mask_color = *color;
quick_mask = gimp_image_get_quick_mask (image);
if (quick_mask)
gimp_channel_set_color (quick_mask, color, TRUE);
}
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);
}
