105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
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/* LIBPIKA - The PIKA Library
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* Copyright (C) 1995-2000 Peter Mattis and Spencer Kimball
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*
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* pikaselection.c
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "pika.h"
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struct _PikaSelection
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{
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PikaChannel parent_instance;
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};
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G_DEFINE_TYPE (PikaSelection, pika_selection, PIKA_TYPE_CHANNEL)
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#define parent_class pika_selection_parent_class
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static void
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pika_selection_class_init (PikaSelectionClass *klass)
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{
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}
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static void
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pika_selection_init (PikaSelection *selection)
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{
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}
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/**
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* pika_selection_get_by_id:
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* @selection_id: The selection id.
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*
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* Returns a #PikaSelection representing @selection_id. This function
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* calls pika_item_get_by_id() and returns the item if it is selection
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* or %NULL otherwise.
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*
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* Returns: (nullable) (transfer none): a #PikaSelection for
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* @selection_id or %NULL if @selection_id does not represent
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* a valid selection. The object belongs to libpika and you
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* must not modify or unref it.
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*
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* Since: 3.0
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**/
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PikaSelection *
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pika_selection_get_by_id (gint32 selection_id)
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{
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PikaItem *item = pika_item_get_by_id (selection_id);
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if (PIKA_IS_SELECTION (item))
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return (PikaSelection *) item;
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return NULL;
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}
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/**
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* pika_selection_float:
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* @image: ignored
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* @n_drawables: Size of @drawables.
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* @drawables: (array length=n_drawables): The drawables from which to
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* float selection.
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* @offx: x offset for translation.
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* @offy: y offset for translation.
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*
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* Float the selection from the specified drawable with initial offsets
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* as specified.
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*
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* This procedure determines the region of the specified drawable that
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* lies beneath the current selection. The region is then cut from the
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* drawable and the resulting data is made into a new layer which is
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* instantiated as a floating selection. The offsets allow initial
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* positioning of the new floating selection.
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*
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* Returns: (transfer none): The floated layer.
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*/
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PikaLayer *
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pika_selection_float (PikaImage *image,
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gint n_drawables,
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PikaDrawable **drawables,
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gint offx,
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gint offy)
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{
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return _pika_selection_float (n_drawables,
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(const PikaItem **) drawables,
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offx,
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offy);
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}
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