GimpUndo *
gimp_image_undo_push_layer_remove (GimpImage *image,
const gchar *undo_desc,
GimpLayer *layer,
GimpLayer *prev_parent,
gint prev_position,
GimpLayer *prev_layer)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_LAYER (layer), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (layer)), NULL);
g_return_val_if_fail (prev_parent == NULL || GIMP_IS_LAYER (prev_parent),
NULL);
g_return_val_if_fail (prev_layer == NULL || GIMP_IS_LAYER (prev_layer),
NULL);
return gimp_image_undo_push (image, GIMP_TYPE_LAYER_UNDO,
GIMP_UNDO_LAYER_REMOVE, undo_desc,
GIMP_DIRTY_IMAGE_STRUCTURE,
"item", layer,
"prev-parent", prev_parent,
"prev-position", prev_position,
"prev-layer", prev_layer,
NULL);
}
static void
gimp_layer_mask_prop_undo_constructed (GObject *object)
{
GimpLayerMaskPropUndo *layer_mask_prop_undo;
GimpLayer *layer;
layer_mask_prop_undo = GIMP_LAYER_MASK_PROP_UNDO (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
g_assert (GIMP_IS_LAYER (GIMP_ITEM_UNDO (object)->item));
layer = GIMP_LAYER (GIMP_ITEM_UNDO (object)->item);
switch (GIMP_UNDO (object)->undo_type)
{
case GIMP_UNDO_LAYER_MASK_APPLY:
layer_mask_prop_undo->apply = gimp_layer_get_apply_mask (layer);
break;
case GIMP_UNDO_LAYER_MASK_SHOW:
layer_mask_prop_undo->show = gimp_layer_get_show_mask (layer);
break;
default:
g_assert_not_reached ();
}
}
static void
gimp_layer_prop_undo_constructed (GObject *object)
{
GimpLayerPropUndo *layer_prop_undo = GIMP_LAYER_PROP_UNDO (object);
GimpLayer *layer;
G_OBJECT_CLASS (parent_class)->constructed (object);
g_assert (GIMP_IS_LAYER (GIMP_ITEM_UNDO (object)->item));
layer = GIMP_LAYER (GIMP_ITEM_UNDO (object)->item);
switch (GIMP_UNDO (object)->undo_type)
{
case GIMP_UNDO_LAYER_MODE:
layer_prop_undo->mode = gimp_layer_get_mode (layer);
break;
case GIMP_UNDO_LAYER_OPACITY:
layer_prop_undo->opacity = gimp_layer_get_opacity (layer);
break;
case GIMP_UNDO_LAYER_LOCK_ALPHA:
layer_prop_undo->lock_alpha = gimp_layer_get_lock_alpha (layer);
break;
default:
g_assert_not_reached ();
}
}
void
floating_sel_remove (GimpLayer *layer)
{
GimpImage *image;
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
image = gimp_item_get_image (GIMP_ITEM (layer->fs.drawable));
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_FS_REMOVE,
_("Remove Floating Selection"));
/* store the affected area from the drawable in the backing store */
floating_sel_relax (layer, TRUE);
/* Invalidate the preview of the obscured drawable. We do this here
* because it will not be done until the floating selection is removed,
* at which point the obscured drawable's preview will not be declared
* invalid.
*/
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (layer));
/* remove the layer from the image */
gimp_image_remove_layer (image, layer);
gimp_image_undo_group_end (image);
}
void
floating_sel_activate_drawable (GimpLayer *layer)
{
GimpImage *image;
GimpDrawable *drawable;
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
image = gimp_item_get_image (GIMP_ITEM (layer));
drawable = gimp_layer_get_floating_sel_drawable (layer);
/* set the underlying drawable to active */
if (GIMP_IS_LAYER_MASK (drawable))
{
GimpLayerMask *mask = GIMP_LAYER_MASK (drawable);
gimp_image_set_active_layer (image, gimp_layer_mask_get_layer (mask));
}
else if (GIMP_IS_CHANNEL (drawable))
{
gimp_image_set_active_channel (image, GIMP_CHANNEL (drawable));
}
else
{
gimp_image_set_active_layer (image, GIMP_LAYER (drawable));
}
}
void
floating_sel_anchor (GimpLayer *layer)
{
GimpImage *image;
GimpDrawable *drawable;
GimpFilter *filter = NULL;
gint off_x, off_y;
gint dr_off_x, dr_off_y;
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
/* Don't let gimp_image_remove_layer free the layer while we still need it */
g_object_ref (layer);
image = gimp_item_get_image (GIMP_ITEM (layer));
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_FS_ANCHOR,
C_("undo-type", "Anchor Floating Selection"));
drawable = gimp_layer_get_floating_sel_drawable (layer);
gimp_item_get_offset (GIMP_ITEM (layer), &off_x, &off_y);
gimp_item_get_offset (GIMP_ITEM (drawable), &dr_off_x, &dr_off_y);
if (gimp_item_get_visible (GIMP_ITEM (layer)) &&
gimp_rectangle_intersect (off_x, off_y,
gimp_item_get_width (GIMP_ITEM (layer)),
gimp_item_get_height (GIMP_ITEM (layer)),
dr_off_x, dr_off_y,
gimp_item_get_width (GIMP_ITEM (drawable)),
gimp_item_get_height (GIMP_ITEM (drawable)),
NULL, NULL, NULL, NULL))
{
filter = gimp_drawable_get_floating_sel_filter (drawable);
g_object_ref (filter);
}
/* first remove the filter, then merge it, or we will get warnings
* about already connected nodes
*/
gimp_image_remove_layer (image, layer, TRUE, NULL);
if (filter)
{
gimp_drawable_merge_filter (drawable, filter, NULL, NULL);
g_object_unref (filter);
}
gimp_image_undo_group_end (image);
/* invalidate the boundaries */
gimp_drawable_invalidate_boundary (GIMP_DRAWABLE (gimp_image_get_mask (image)));
g_object_unref (layer);
}
static void
gimp_display_shell_drop_drawable (GtkWidget *widget,
gint x,
gint y,
GimpViewable *viewable,
gpointer data)
{
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data);
GimpImage *image = gimp_display_get_image (shell->display);
GType new_type;
GimpItem *new_item;
GIMP_LOG (DND, NULL);
if (shell->display->gimp->busy)
return;
if (! image)
{
image = gimp_image_new_from_drawable (shell->display->gimp,
GIMP_DRAWABLE (viewable));
gimp_create_display (shell->display->gimp, image, GIMP_UNIT_PIXEL, 1.0,
G_OBJECT (gtk_widget_get_screen (widget)),
gimp_widget_get_monitor (widget));
g_object_unref (image);
return;
}
if (GIMP_IS_LAYER (viewable))
new_type = G_TYPE_FROM_INSTANCE (viewable);
else
new_type = GIMP_TYPE_LAYER;
new_item = gimp_item_convert (GIMP_ITEM (viewable), image, new_type);
if (new_item)
{
GimpLayer *new_layer = GIMP_LAYER (new_item);
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE,
_("Drop New Layer"));
gimp_display_shell_dnd_position_item (shell, image, new_item);
gimp_item_set_visible (new_item, TRUE, FALSE);
gimp_item_set_linked (new_item, FALSE, FALSE);
gimp_image_add_layer (image, new_layer,
GIMP_IMAGE_ACTIVE_PARENT, -1, TRUE);
gimp_image_undo_group_end (image);
gimp_display_shell_dnd_flush (shell, image);
}
}
void
floating_sel_to_layer (GimpLayer *layer)
{
GimpItem *item;
GimpImage *image;
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
item = GIMP_ITEM (layer);
if (! (image = gimp_item_get_image (item)))
return;
/* Check if the floating layer belongs to a channel... */
if (GIMP_IS_CHANNEL (layer->fs.drawable))
{
gimp_message (image->gimp, NULL, GIMP_MESSAGE_WARNING,
_("Cannot create a new layer from the floating selection "
"because it belongs to a layer mask or channel."));
return;
}
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_FS_TO_LAYER,
_("Floating Selection to Layer"));
/* restore the contents of the drawable */
floating_sel_restore (layer,
item->offset_x,
item->offset_y,
item->width,
item->height);
gimp_image_undo_push_fs_to_layer (image, NULL, layer);
/* clear the selection */
gimp_drawable_invalidate_boundary (GIMP_DRAWABLE (layer));
/* Set pointers */
layer->fs.drawable = NULL;
image->floating_sel = NULL;
gimp_item_set_visible (GIMP_ITEM (layer), TRUE, TRUE);
gimp_layer_set_lock_alpha (layer, FALSE, TRUE);
gimp_image_undo_group_end (image);
gimp_object_name_changed (GIMP_OBJECT (layer));
gimp_drawable_update (GIMP_DRAWABLE (layer),
0, 0,
GIMP_ITEM (layer)->width,
GIMP_ITEM (layer)->height);
gimp_image_floating_selection_changed (image);
}
GimpDrawable *
gimp_drawable_transform_paste (GimpDrawable *drawable,
GeglBuffer *buffer,
GimpColorProfile *buffer_profile,
gint offset_x,
gint offset_y,
gboolean new_layer)
{
GimpImage *image;
GimpLayer *layer = NULL;
const gchar *undo_desc = 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 (GEGL_IS_BUFFER (buffer), NULL);
g_return_val_if_fail (GIMP_IS_COLOR_PROFILE (buffer_profile), NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
if (GIMP_IS_LAYER (drawable))
undo_desc = C_("undo-type", "Transform Layer");
else if (GIMP_IS_CHANNEL (drawable))
undo_desc = C_("undo-type", "Transform Channel");
else
return NULL;
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE, undo_desc);
if (new_layer)
{
layer =
gimp_layer_new_from_gegl_buffer (buffer, image,
gimp_drawable_get_format_with_alpha (drawable),
_("Transformation"),
GIMP_OPACITY_OPAQUE,
gimp_image_get_default_new_layer_mode (image),
buffer_profile);
gimp_item_set_offset (GIMP_ITEM (layer), offset_x, offset_y);
floating_sel_attach (layer, drawable);
drawable = GIMP_DRAWABLE (layer);
}
else
{
gimp_drawable_set_buffer_full (drawable, TRUE, NULL,
buffer,
offset_x, offset_y,
TRUE);
}
gimp_image_undo_group_end (image);
return drawable;
}
static void
gimp_layer_mask_undo_constructed (GObject *object)
{
GimpLayerMaskUndo *layer_mask_undo = GIMP_LAYER_MASK_UNDO (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
g_assert (GIMP_IS_LAYER (GIMP_ITEM_UNDO (object)->item));
g_assert (GIMP_IS_LAYER_MASK (layer_mask_undo->layer_mask));
}
GimpUndo *
gimp_image_undo_push_layer_add (GimpImage *image,
const gchar *undo_desc,
GimpLayer *layer,
GimpLayer *prev_layer)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_LAYER (layer), NULL);
g_return_val_if_fail (! gimp_item_is_attached (GIMP_ITEM (layer)), NULL);
g_return_val_if_fail (prev_layer == NULL || GIMP_IS_LAYER (prev_layer),
NULL);
return gimp_image_undo_push (image, GIMP_TYPE_LAYER_UNDO,
GIMP_UNDO_LAYER_ADD, undo_desc,
GIMP_DIRTY_IMAGE_STRUCTURE,
"item", layer,
"prev-layer", prev_layer,
NULL);
}
static gboolean
gimp_layer_mask_is_attached (const GimpItem *item)
{
GimpLayerMask *mask = GIMP_LAYER_MASK (item);
GimpLayer *layer = gimp_layer_mask_get_layer (mask);
return (GIMP_IS_IMAGE (gimp_item_get_image (item)) &&
GIMP_IS_LAYER (layer) &&
gimp_layer_get_mask (layer) == mask &&
gimp_item_is_attached (GIMP_ITEM (layer)));
}
void
floating_sel_invalidate (GimpLayer *layer)
{
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
/* Invalidate the attached-to drawable's preview */
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (gimp_layer_get_floating_sel_drawable (layer)));
/* Invalidate the boundary */
layer->fs.boundary_known = FALSE;
}
gboolean
gimp_text_layer_xcf_load_hack (GimpLayer **layer)
{
const gchar *name;
GimpText *text = NULL;
const GimpParasite *parasite;
g_return_val_if_fail (layer != NULL, FALSE);
g_return_val_if_fail (GIMP_IS_LAYER (*layer), FALSE);
name = gimp_text_parasite_name ();
parasite = gimp_item_parasite_find (GIMP_ITEM (*layer), name);
if (parasite)
{
GError *error = NULL;
text = gimp_text_from_parasite (parasite, &error);
if (error)
{
gimp_message (gimp_item_get_image (GIMP_ITEM (*layer))->gimp, NULL,
GIMP_MESSAGE_ERROR,
_("Problems parsing the text parasite for layer '%s':\n"
"%s\n\n"
"Some text properties may be wrong. "
"Unless you want to edit the text layer, "
"you don't need to worry about this."),
gimp_object_get_name (*layer),
error->message);
g_clear_error (&error);
}
}
else
{
name = gimp_text_gdyntext_parasite_name ();
parasite = gimp_item_parasite_find (GIMP_ITEM (*layer), name);
if (parasite)
text = gimp_text_from_gdyntext_parasite (parasite);
}
if (text)
{
*layer = gimp_text_layer_from_layer (*layer, text);
/* let the text layer knows what parasite was used to create it */
GIMP_TEXT_LAYER (*layer)->text_parasite = name;
}
return (text != NULL);
}
gboolean
floating_sel_to_layer (GimpLayer *layer,
GError **error)
{
GimpItem *item;
GimpImage *image;
g_return_val_if_fail (GIMP_IS_LAYER (layer), FALSE);
g_return_val_if_fail (gimp_layer_is_floating_sel (layer), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
item = GIMP_ITEM (layer);
image = gimp_item_get_image (item);
/* Check if the floating layer belongs to a channel */
if (GIMP_IS_CHANNEL (gimp_layer_get_floating_sel_drawable (layer)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("Cannot create a new layer from the floating "
"selection because it belongs to a layer mask "
"or channel."));
return FALSE;
}
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_FS_TO_LAYER,
C_("undo-type", "Floating Selection to Layer"));
gimp_image_undo_push_fs_to_layer (image, NULL, layer);
gimp_drawable_detach_floating_sel (gimp_layer_get_floating_sel_drawable (layer));
gimp_layer_set_floating_sel_drawable (layer, NULL);
gimp_item_set_visible (item, TRUE, TRUE);
gimp_layer_set_lock_alpha (layer, FALSE, TRUE);
gimp_image_undo_group_end (image);
/* When the floating selection is converted to/from a normal layer
* it does something resembling a name change, so emit the
* "name-changed" signal
*/
gimp_object_name_changed (GIMP_OBJECT (layer));
gimp_drawable_update (GIMP_DRAWABLE (layer),
0, 0,
gimp_item_get_width (item),
gimp_item_get_height (item));
return TRUE;
}
GimpObject *
gimp_edit_cut (GimpImage *image,
GimpDrawable *drawable,
GimpContext *context,
GError **error)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), 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 (error == NULL || *error == NULL, NULL);
if (GIMP_IS_LAYER (drawable) &&
gimp_channel_is_empty (gimp_image_get_mask (image)))
{
GimpImage *clip_image;
clip_image = gimp_image_new_from_drawable (image->gimp, drawable);
gimp_container_remove (image->gimp->images, GIMP_OBJECT (clip_image));
gimp_set_clipboard_image (image->gimp, clip_image);
g_object_unref (clip_image);
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_CUT,
C_("undo-type", "Cut Layer"));
gimp_image_remove_layer (image, GIMP_LAYER (drawable),
TRUE, NULL);
gimp_image_undo_group_end (image);
return GIMP_OBJECT (gimp_get_clipboard_image (image->gimp));
}
else
{
GimpBuffer *buffer;
buffer = gimp_edit_extract (image, GIMP_PICKABLE (drawable),
context, TRUE, error);
if (buffer)
{
gimp_set_clipboard_buffer (image->gimp, buffer);
g_object_unref (buffer);
return GIMP_OBJECT (gimp_get_clipboard_buffer (image->gimp));
}
}
return NULL;
}
void
floating_sel_anchor (GimpLayer *layer)
{
GimpImage *image;
GimpDrawable *drawable;
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
image = gimp_item_get_image (GIMP_ITEM (layer));
if (! gimp_layer_is_floating_sel (layer))
{
gimp_message (image->gimp, NULL, GIMP_MESSAGE_WARNING,
_("Cannot anchor this layer because "
"it is not a floating selection."));
return;
}
/* Start a floating selection anchoring undo */
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_FS_ANCHOR,
_("Anchor Floating Selection"));
/* Invalidate the previews of the layer that will be composited
* with the floating section.
*/
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (layer->fs.drawable));
/* Relax the floating selection */
floating_sel_relax (layer, TRUE);
/* Composite the floating selection contents */
floating_sel_composite (layer,
GIMP_ITEM (layer)->offset_x,
GIMP_ITEM (layer)->offset_y,
GIMP_ITEM (layer)->width,
GIMP_ITEM (layer)->height, TRUE);
drawable = layer->fs.drawable;
/* remove the floating selection */
gimp_image_remove_layer (image, layer);
/* end the group undo */
gimp_image_undo_group_end (image);
/* invalidate the boundaries */
gimp_drawable_invalidate_boundary (GIMP_DRAWABLE (gimp_image_get_mask (image)));
}
GimpUndo *
gimp_image_undo_push_layer_mask_show (GimpImage *image,
const gchar *undo_desc,
GimpLayer *layer)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_LAYER (layer), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (layer)), NULL);
return gimp_image_undo_push (image, GIMP_TYPE_LAYER_MASK_PROP_UNDO,
GIMP_UNDO_LAYER_MASK_SHOW, undo_desc,
GIMP_DIRTY_ITEM_META,
"item", layer,
NULL);
}
void
floating_sel_restore (GimpLayer *layer,
gint x,
gint y,
gint w,
gint h)
{
PixelRegion srcPR, destPR;
gint offx, offy;
gint x1, y1, x2, y2;
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
/* What this function does is "uncover" the specified area in the
* drawable that this floating selection obscures. We do this so
* that either the floating selection can be removed or it can be
* translated
*/
/* Find the minimum area we need to uncover -- in image space */
gimp_item_offsets (GIMP_ITEM (layer->fs.drawable), &offx, &offy);
x1 = MAX (GIMP_ITEM (layer)->offset_x, offx);
y1 = MAX (GIMP_ITEM (layer)->offset_y, offy);
x2 = MIN (GIMP_ITEM (layer)->offset_x + GIMP_ITEM (layer)->width,
offx + gimp_item_width (GIMP_ITEM (layer->fs.drawable)));
y2 = MIN (GIMP_ITEM(layer)->offset_y + GIMP_ITEM (layer)->height,
offy + gimp_item_height (GIMP_ITEM (layer->fs.drawable)));
x1 = CLAMP (x, x1, x2);
y1 = CLAMP (y, y1, y2);
x2 = CLAMP (x + w, x1, x2);
y2 = CLAMP (y + h, y1, y2);
if ((x2 - x1) > 0 && (y2 - y1) > 0)
{
/* Copy the area from the backing store to the drawable */
pixel_region_init (&srcPR, layer->fs.backing_store,
(x1 - GIMP_ITEM (layer)->offset_x),
(y1 - GIMP_ITEM (layer)->offset_y),
(x2 - x1), (y2 - y1), FALSE);
pixel_region_init (&destPR, gimp_drawable_get_tiles (layer->fs.drawable),
(x1 - offx), (y1 - offy), (x2 - x1), (y2 - y1), TRUE);
copy_region (&srcPR, &destPR);
}
}
GimpUndo *
gimp_image_undo_push_fs_to_layer (GimpImage *image,
const gchar *undo_desc,
GimpLayer *floating_layer)
{
GimpUndo *undo;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_LAYER (floating_layer), NULL);
undo = gimp_image_undo_push (image, GIMP_TYPE_FLOATING_SEL_UNDO,
GIMP_UNDO_FS_TO_LAYER, undo_desc,
GIMP_DIRTY_IMAGE_STRUCTURE,
"item", floating_layer,
NULL);
return undo;
}
GimpUndo *
gimp_image_undo_push_layer_mask_add (GimpImage *image,
const gchar *undo_desc,
GimpLayer *layer,
GimpLayerMask *mask)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_LAYER (layer), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (layer)), NULL);
g_return_val_if_fail (GIMP_IS_LAYER_MASK (mask), NULL);
g_return_val_if_fail (! gimp_item_is_attached (GIMP_ITEM (mask)), NULL);
return gimp_image_undo_push (image, GIMP_TYPE_LAYER_MASK_UNDO,
GIMP_UNDO_LAYER_MASK_ADD, undo_desc,
GIMP_DIRTY_IMAGE_STRUCTURE,
"item", layer,
"layer-mask", mask,
NULL);
}
void
floating_sel_attach (GimpLayer *layer,
GimpDrawable *drawable)
{
GimpImage *image;
GimpLayer *floating_sel;
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
g_return_if_fail (drawable != GIMP_DRAWABLE (layer));
g_return_if_fail (gimp_item_get_image (GIMP_ITEM (layer)) ==
gimp_item_get_image (GIMP_ITEM (drawable)));
image = gimp_item_get_image (GIMP_ITEM (drawable));
floating_sel = gimp_image_floating_sel (image);
/* If there is already a floating selection, anchor it */
if (floating_sel)
{
floating_sel_anchor (floating_sel);
/* if we were pasting to the old floating selection, paste now
* to the drawable
*/
if (drawable == (GimpDrawable *) floating_sel)
drawable = gimp_image_get_active_drawable (image);
}
/* set the drawable and allocate a backing store */
gimp_layer_set_lock_alpha (layer, TRUE, FALSE);
layer->fs.drawable = drawable;
layer->fs.backing_store = tile_manager_new (GIMP_ITEM (layer)->width,
GIMP_ITEM (layer)->height,
gimp_drawable_bytes (drawable));
/* add the layer to the image */
gimp_image_add_layer (image, layer, 0);
/* store the affected area from the drawable in the backing store */
floating_sel_rigor (layer, TRUE);
}
static GObject *
gimp_layer_prop_undo_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpLayerPropUndo *layer_prop_undo;
GimpImage *image;
GimpLayer *layer;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
layer_prop_undo = GIMP_LAYER_PROP_UNDO (object);
g_assert (GIMP_IS_LAYER (GIMP_ITEM_UNDO (object)->item));
image = GIMP_UNDO (object)->image;
layer = GIMP_LAYER (GIMP_ITEM_UNDO (object)->item);
switch (GIMP_UNDO (object)->undo_type)
{
case GIMP_UNDO_LAYER_REPOSITION:
layer_prop_undo->position = gimp_image_get_layer_index (image, layer);
break;
case GIMP_UNDO_LAYER_MODE:
layer_prop_undo->mode = gimp_layer_get_mode (layer);
break;
case GIMP_UNDO_LAYER_OPACITY:
layer_prop_undo->opacity = gimp_layer_get_opacity (layer);
break;
case GIMP_UNDO_LAYER_LOCK_ALPHA:
layer_prop_undo->lock_alpha = gimp_layer_get_lock_alpha (layer);
break;
default:
g_assert_not_reached ();
}
return object;
}
void
floating_sel_rigor (GimpLayer *layer,
gboolean push_undo)
{
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
/* store the affected area from the drawable in the backing store */
floating_sel_store (layer,
GIMP_ITEM (layer)->offset_x,
GIMP_ITEM (layer)->offset_y,
GIMP_ITEM (layer)->width,
GIMP_ITEM (layer)->height);
layer->fs.initial = TRUE;
if (push_undo)
gimp_image_undo_push_fs_rigor (gimp_item_get_image (GIMP_ITEM (layer)),
NULL,
layer);
}
void
floating_sel_relax (GimpLayer *layer,
gboolean push_undo)
{
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
/* restore the contents of drawable the floating layer is attached to */
if (layer->fs.initial == FALSE)
floating_sel_restore (layer,
GIMP_ITEM (layer)->offset_x,
GIMP_ITEM (layer)->offset_y,
GIMP_ITEM (layer)->width,
GIMP_ITEM (layer)->height);
layer->fs.initial = TRUE;
if (push_undo)
gimp_image_undo_push_fs_relax (gimp_item_get_image (GIMP_ITEM (layer)),
NULL,
layer);
}
gboolean
gimp_pdb_layer_is_text_layer (GimpLayer *layer,
GimpPDBItemModify modify,
GError **error)
{
g_return_val_if_fail (GIMP_IS_LAYER (layer), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
if (! gimp_item_is_text_layer (GIMP_ITEM (layer)))
{
g_set_error (error, GIMP_PDB_ERROR, GIMP_PDB_ERROR_INVALID_ARGUMENT,
_("Layer '%s' (%d) cannot be used because it is not "
"a text layer"),
gimp_object_get_name (layer),
gimp_item_get_ID (GIMP_ITEM (layer)));
return FALSE;
}
return gimp_pdb_item_is_attached (GIMP_ITEM (layer), NULL, modify, error);
}
/**
* gimp_text_layer_from_layer:
* @layer: a #GimpLayer object
* @text: a #GimpText object
*
* Converts a standard #GimpLayer and a #GimpText object into a
* #GimpTextLayer. The new text layer takes ownership of the @text and
* @layer objects. The @layer object is rendered unusable by this
* function. Don't even try to use if afterwards!
*
* This is a gross hack that is needed in order to load text layers
* from XCF files in a backwards-compatible way. Please don't use it
* for anything else!
*
* Return value: a newly allocated #GimpTextLayer object
**/
static GimpLayer *
gimp_text_layer_from_layer (GimpLayer *layer,
GimpText *text)
{
GimpTextLayer *text_layer;
GimpDrawable *drawable;
g_return_val_if_fail (GIMP_IS_LAYER (layer), NULL);
g_return_val_if_fail (GIMP_IS_TEXT (text), NULL);
text_layer = g_object_new (GIMP_TYPE_TEXT_LAYER,
"image", gimp_item_get_image (GIMP_ITEM (layer)),
NULL);
gimp_item_replace_item (GIMP_ITEM (text_layer), GIMP_ITEM (layer));
drawable = GIMP_DRAWABLE (text_layer);
gimp_drawable_steal_buffer (drawable, GIMP_DRAWABLE (layer));
gimp_layer_set_opacity (GIMP_LAYER (text_layer),
gimp_layer_get_opacity (layer), FALSE);
gimp_layer_set_mode (GIMP_LAYER (text_layer),
gimp_layer_get_mode (layer), FALSE);
gimp_layer_set_blend_space (GIMP_LAYER (text_layer),
gimp_layer_get_blend_space (layer), FALSE);
gimp_layer_set_composite_space (GIMP_LAYER (text_layer),
gimp_layer_get_composite_space (layer), FALSE);
gimp_layer_set_composite_mode (GIMP_LAYER (text_layer),
gimp_layer_get_composite_mode (layer), FALSE);
gimp_layer_set_lock_alpha (GIMP_LAYER (text_layer),
gimp_layer_get_lock_alpha (layer), FALSE);
gimp_text_layer_set_text (text_layer, text);
g_object_unref (text);
g_object_unref (layer);
return GIMP_LAYER (text_layer);
}
static void
gimp_floating_sel_undo_constructed (GObject *object)
{
GimpFloatingSelUndo *floating_sel_undo = GIMP_FLOATING_SEL_UNDO (object);
GimpLayer *layer;
G_OBJECT_CLASS (parent_class)->constructed (object);
g_assert (GIMP_IS_LAYER (GIMP_ITEM_UNDO (object)->item));
layer = GIMP_LAYER (GIMP_ITEM_UNDO (object)->item);
switch (GIMP_UNDO (object)->undo_type)
{
case GIMP_UNDO_FS_TO_LAYER:
floating_sel_undo->drawable = gimp_layer_get_floating_sel_drawable (layer);
break;
default:
g_assert_not_reached ();
}
}
void
gimp_layer_mask_set_layer (GimpLayerMask *layer_mask,
GimpLayer *layer)
{
g_return_if_fail (GIMP_IS_LAYER_MASK (layer_mask));
g_return_if_fail (layer == NULL || GIMP_IS_LAYER (layer));
layer_mask->layer = layer;
if (layer)
{
gchar *mask_name;
GIMP_ITEM (layer_mask)->offset_x = GIMP_ITEM (layer)->offset_x;
GIMP_ITEM (layer_mask)->offset_y = GIMP_ITEM (layer)->offset_y;
mask_name = g_strdup_printf (_("%s mask"),
gimp_object_get_name (GIMP_OBJECT (layer)));
gimp_object_take_name (GIMP_OBJECT (layer_mask), mask_name);
}
}
void
gimp_display_shell_set_layer_style (GimpDisplayShell *shell,
cairo_t *cr,
GimpLayer *layer)
{
cairo_pattern_t *pattern;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_return_if_fail (cr != NULL);
g_return_if_fail (GIMP_IS_LAYER (layer));
cairo_set_line_width (cr, 1.0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
if (gimp_layer_get_mask (layer) &&
gimp_layer_mask_get_edit (gimp_layer_get_mask (layer)))
{
pattern = gimp_cairo_stipple_pattern_create (&layer_mask_fg,
&layer_mask_bg,
0);
}
else if (gimp_viewable_get_children (GIMP_VIEWABLE (layer)))
{
pattern = gimp_cairo_stipple_pattern_create (&layer_group_fg,
&layer_group_bg,
0);
}
else
{
pattern = gimp_cairo_stipple_pattern_create (&layer_fg,
&layer_bg,
0);
}
cairo_set_source (cr, pattern);
cairo_pattern_destroy (pattern);
}
