633 lines
18 KiB
C
633 lines
18 KiB
C
/* LIBPIKA - The PIKA Library
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* Copyright (C) 1995-2003 Peter Mattis and Spencer Kimball
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*
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* pikaselection_pdb.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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/* NOTE: This file is auto-generated by pdbgen.pl */
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#include "config.h"
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#include "stamp-pdbgen.h"
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#include "pika.h"
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/**
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* SECTION: pikaselection
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* @title: pikaselection
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* @short_description: Functions for manipulating selections.
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*
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* Functions for manipulating selections.
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**/
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/**
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* pika_selection_bounds:
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* @image: The image.
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* @non_empty: (out): TRUE if there is a selection.
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* @x1: (out): x coordinate of upper left corner of selection bounds.
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* @y1: (out): y coordinate of upper left corner of selection bounds.
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* @x2: (out): x coordinate of lower right corner of selection bounds.
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* @y2: (out): y coordinate of lower right corner of selection bounds.
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*
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* Find the bounding box of the current selection.
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*
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* This procedure returns whether there is a selection for the
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* specified image. If there is one, the upper left and lower right
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* corners of the bounding box are returned. These coordinates are
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* relative to the image. Please note that the pixel specified by the
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* lower right coordinate of the bounding box is not part of the
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* selection. The selection ends at the upper left corner of this
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* pixel. This means the width of the selection can be calculated as
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* (x2 - x1), its height as (y2 - y1).
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_selection_bounds (PikaImage *image,
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gboolean *non_empty,
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gint *x1,
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gint *y1,
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gint *x2,
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gint *y2)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-bounds",
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args);
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pika_value_array_unref (args);
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*non_empty = FALSE;
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*x1 = 0;
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*y1 = 0;
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*x2 = 0;
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*y2 = 0;
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success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
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if (success)
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{
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*non_empty = PIKA_VALUES_GET_BOOLEAN (return_vals, 1);
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*x1 = PIKA_VALUES_GET_INT (return_vals, 2);
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*y1 = PIKA_VALUES_GET_INT (return_vals, 3);
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*x2 = PIKA_VALUES_GET_INT (return_vals, 4);
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*y2 = PIKA_VALUES_GET_INT (return_vals, 5);
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}
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pika_value_array_unref (return_vals);
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return success;
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}
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/**
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* pika_selection_value:
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* @image: The image.
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* @x: x coordinate of value.
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* @y: y coordinate of value.
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*
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* Find the value of the selection at the specified coordinates.
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*
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* This procedure returns the value of the selection at the specified
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* coordinates. If the coordinates lie out of bounds, 0 is returned.
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*
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* Returns: Value of the selection.
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**/
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gint
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pika_selection_value (PikaImage *image,
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gint x,
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gint y)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gint value = 0;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_INT, x,
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G_TYPE_INT, y,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-value",
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args);
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pika_value_array_unref (args);
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if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
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value = PIKA_VALUES_GET_INT (return_vals, 1);
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pika_value_array_unref (return_vals);
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return value;
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}
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/**
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* pika_selection_is_empty:
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* @image: The image.
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*
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* Determine whether the selection is empty.
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*
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* This procedure returns TRUE if the selection for the specified image
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* is empty.
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*
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* Returns: Is the selection empty?
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**/
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gboolean
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pika_selection_is_empty (PikaImage *image)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean is_empty = FALSE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-is-empty",
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args);
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pika_value_array_unref (args);
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if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
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is_empty = PIKA_VALUES_GET_BOOLEAN (return_vals, 1);
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pika_value_array_unref (return_vals);
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return is_empty;
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}
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/**
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* pika_selection_translate:
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* @image: The image.
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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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* Translate the selection by the specified offsets.
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*
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* This procedure actually translates the selection for the specified
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* image by the specified offsets. Regions that are translated from
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* beyond the bounds of the image are set to empty. Valid regions of
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* the selection which are translated beyond the bounds of the image
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* because of this call are lost.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_selection_translate (PikaImage *image,
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gint offx,
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gint offy)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_INT, offx,
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G_TYPE_INT, offy,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-translate",
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args);
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pika_value_array_unref (args);
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success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
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pika_value_array_unref (return_vals);
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return success;
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}
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/**
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* _pika_selection_float:
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* @num_drawables: The number of drawables.
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* @drawables: (array length=num_drawables) (element-type PikaItem): The drawables from which to 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 (gint num_drawables,
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const PikaItem **drawables,
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gint offx,
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gint offy)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaLayer *layer = NULL;
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args = pika_value_array_new_from_types (NULL,
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G_TYPE_INT, num_drawables,
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PIKA_TYPE_OBJECT_ARRAY, NULL,
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G_TYPE_INT, offx,
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G_TYPE_INT, offy,
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G_TYPE_NONE);
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pika_value_set_object_array (pika_value_array_index (args, 1), PIKA_TYPE_ITEM, (GObject **) drawables, num_drawables);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-float",
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args);
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pika_value_array_unref (args);
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if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
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layer = PIKA_VALUES_GET_LAYER (return_vals, 1);
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pika_value_array_unref (return_vals);
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return layer;
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}
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/**
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* pika_selection_invert:
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* @image: The image.
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*
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* Invert the selection mask.
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*
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* This procedure inverts the selection mask. For every pixel in the
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* selection channel, its new value is calculated as (255 - old-value).
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_selection_invert (PikaImage *image)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-invert",
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args);
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pika_value_array_unref (args);
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success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
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pika_value_array_unref (return_vals);
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return success;
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}
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/**
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* pika_selection_sharpen:
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* @image: The image.
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*
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* Sharpen the selection mask.
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*
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* This procedure sharpens the selection mask. For every pixel in the
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* selection channel, if the value is > 127, the new pixel is
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* assigned a value of 255. This removes any \"anti-aliasing\" that
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* might exist in the selection mask's boundary.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_selection_sharpen (PikaImage *image)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-sharpen",
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args);
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pika_value_array_unref (args);
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success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
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pika_value_array_unref (return_vals);
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return success;
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}
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/**
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* pika_selection_all:
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* @image: The image.
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*
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* Select all of the image.
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*
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* This procedure sets the selection mask to completely encompass the
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* image. Every pixel in the selection channel is set to 255.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_selection_all (PikaImage *image)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-all",
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args);
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pika_value_array_unref (args);
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success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
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pika_value_array_unref (return_vals);
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return success;
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}
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/**
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* pika_selection_none:
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* @image: The image.
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*
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* Deselect the entire image.
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*
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* This procedure deselects the entire image. Every pixel in the
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* selection channel is set to 0.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_selection_none (PikaImage *image)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-none",
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args);
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pika_value_array_unref (args);
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success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
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pika_value_array_unref (return_vals);
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return success;
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}
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/**
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* pika_selection_feather:
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* @image: The image.
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* @radius: Radius of feather (in pixels).
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*
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* Feather the image's selection
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*
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* This procedure feathers the selection. Feathering is implemented
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* using a gaussian blur.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_selection_feather (PikaImage *image,
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gdouble radius)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_DOUBLE, radius,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-feather",
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args);
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pika_value_array_unref (args);
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success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
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pika_value_array_unref (return_vals);
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return success;
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}
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/**
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* pika_selection_border:
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* @image: The image.
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* @radius: Radius of border (in pixels).
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*
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* Border the image's selection
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*
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* This procedure borders the selection. Bordering creates a new
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* selection which is defined along the boundary of the previous
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* selection at every point within the specified radius.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_selection_border (PikaImage *image,
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gint radius)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_INT, radius,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-border",
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args);
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pika_value_array_unref (args);
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success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
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pika_value_array_unref (return_vals);
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return success;
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}
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/**
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* pika_selection_grow:
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* @image: The image.
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* @steps: Steps of grow (in pixels).
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*
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* Grow the image's selection
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*
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* This procedure grows the selection. Growing involves expanding the
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* boundary in all directions by the specified pixel amount.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_selection_grow (PikaImage *image,
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gint steps)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_INT, steps,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-selection-grow",
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args);
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pika_value_array_unref (args);
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success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
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pika_value_array_unref (return_vals);
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return success;
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}
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/**
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* pika_selection_shrink:
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* @image: The image.
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* @steps: Steps of shrink (in pixels).
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*
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* Shrink the image's selection
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*
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* This procedure shrinks the selection. Shrinking involves trimming
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* the existing selection boundary on all sides by the specified number
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* of pixels.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_selection_shrink (PikaImage *image,
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gint steps)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_INT, steps,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-selection-shrink",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return success;
|
|
}
|
|
|
|
/**
|
|
* pika_selection_flood:
|
|
* @image: The image.
|
|
*
|
|
* Remove holes from the image's selection
|
|
*
|
|
* This procedure removes holes from the selection, that can come from
|
|
* selecting a patchy area with the Fuzzy Select Tool. In technical
|
|
* terms this procedure floods the selection. See the Algorithms page
|
|
* in the developer wiki for details.
|
|
*
|
|
* Returns: TRUE on success.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
gboolean
|
|
pika_selection_flood (PikaImage *image)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gboolean success = TRUE;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_IMAGE, image,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-selection-flood",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return success;
|
|
}
|
|
|
|
/**
|
|
* pika_selection_save:
|
|
* @image: The image.
|
|
*
|
|
* Copy the selection mask to a new channel.
|
|
*
|
|
* This procedure copies the selection mask and stores the content in a
|
|
* new channel. The new channel is automatically inserted into the
|
|
* image's list of channels.
|
|
*
|
|
* Returns: (transfer none): The new channel.
|
|
**/
|
|
PikaChannel *
|
|
pika_selection_save (PikaImage *image)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
PikaChannel *channel = NULL;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_IMAGE, image,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-selection-save",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
|
|
channel = PIKA_VALUES_GET_CHANNEL (return_vals, 1);
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return channel;
|
|
}
|
