708 lines
26 KiB
C
708 lines
26 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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* pikaitemtransform_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: pikaitemtransform
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* @title: pikaitemtransform
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* @short_description: Functions to perform transformations on items.
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*
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* Functions to perform transformations on items.
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**/
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/**
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* pika_item_transform_translate:
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* @item: The item.
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* @off_x: Offset in x direction.
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* @off_y: Offset in y direction.
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*
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* Translate the item by the specified offsets.
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*
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* This procedure translates the item by the amounts specified in the
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* off_x and off_y arguments. These can be negative, and are considered
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* offsets from the current position. The offsets will be rounded to
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* the nearest pixel unless the item is a path.
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*
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* Returns: (transfer none): The translated item.
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*
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* Since: 2.10
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**/
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PikaItem *
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pika_item_transform_translate (PikaItem *item,
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gdouble off_x,
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gdouble off_y)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaItem *ret_item = NULL;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_ITEM, item,
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G_TYPE_DOUBLE, off_x,
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G_TYPE_DOUBLE, off_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-item-transform-translate",
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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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ret_item = PIKA_VALUES_GET_ITEM (return_vals, 1);
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pika_value_array_unref (return_vals);
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return ret_item;
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}
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/**
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* pika_item_transform_flip_simple:
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* @item: The affected item.
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* @flip_type: Type of flip.
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* @auto_center: Whether to automatically position the axis in the selection center.
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* @axis: coord. of flip axis.
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*
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* Flip the specified item either vertically or horizontally.
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*
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* This procedure flips the specified item.
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*
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* If a selection exists and the item is a drawable, the portion of the
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* drawable which lies under the selection is cut from the drawable and
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* made into a floating selection which is then flipped. If auto_center
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* is set to TRUE, the flip is around the selection's center.
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* Otherwise, the coordinate of the axis needs to be specified. The
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* return value is the ID of the flipped floating selection.
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*
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* If there is no selection or the item is not a drawable, the entire
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* item will be flipped around its center if auto_center is set to
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* TRUE, otherwise the coordinate of the axis needs to be specified.
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* The return value will be equal to the item ID supplied as input.
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*
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* This procedure is affected by the following context setters:
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* pika_context_set_transform_resize().
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*
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* Returns: (transfer none): The flipped item.
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*
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* Since: 2.2
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**/
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PikaItem *
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pika_item_transform_flip_simple (PikaItem *item,
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PikaOrientationType flip_type,
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gboolean auto_center,
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gdouble axis)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaItem *ret_item = NULL;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_ITEM, item,
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PIKA_TYPE_ORIENTATION_TYPE, flip_type,
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G_TYPE_BOOLEAN, auto_center,
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G_TYPE_DOUBLE, axis,
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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-item-transform-flip-simple",
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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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ret_item = PIKA_VALUES_GET_ITEM (return_vals, 1);
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pika_value_array_unref (return_vals);
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return ret_item;
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}
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/**
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* pika_item_transform_flip:
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* @item: The affected item.
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* @x0: horz. coord. of one end of axis.
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* @y0: vert. coord. of one end of axis.
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* @x1: horz. coord. of other end of axis.
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* @y1: vert. coord. of other end of axis.
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*
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* Flip the specified item around a given line.
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*
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* This procedure flips the specified item.
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*
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* If a selection exists and the item is a drawable, the portion of the
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* drawable which lies under the selection is cut from the drawable and
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* made into a floating selection which is then flipped. The axis to
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* flip around is specified by specifying two points from that line.
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* The return value is the ID of the flipped floating selection.
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*
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* If there is no selection or the item is not a drawable, the entire
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* item will be flipped around the specified axis. The return value
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* will be equal to the item ID supplied as input.
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*
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* This procedure is affected by the following context setters:
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* pika_context_set_interpolation(),
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* pika_context_set_transform_direction(),
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* pika_context_set_transform_resize().
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*
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* Returns: (transfer none): The flipped item.
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*
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* Since: 2.8
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**/
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PikaItem *
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pika_item_transform_flip (PikaItem *item,
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gdouble x0,
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gdouble y0,
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gdouble x1,
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gdouble y1)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaItem *ret_item = NULL;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_ITEM, item,
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G_TYPE_DOUBLE, x0,
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G_TYPE_DOUBLE, y0,
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G_TYPE_DOUBLE, x1,
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G_TYPE_DOUBLE, y1,
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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-item-transform-flip",
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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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ret_item = PIKA_VALUES_GET_ITEM (return_vals, 1);
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pika_value_array_unref (return_vals);
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return ret_item;
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}
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/**
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* pika_item_transform_perspective:
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* @item: The affected item.
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* @x0: The new x coordinate of upper-left corner of original bounding box.
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* @y0: The new y coordinate of upper-left corner of original bounding box.
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* @x1: The new x coordinate of upper-right corner of original bounding box.
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* @y1: The new y coordinate of upper-right corner of original bounding box.
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* @x2: The new x coordinate of lower-left corner of original bounding box.
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* @y2: The new y coordinate of lower-left corner of original bounding box.
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* @x3: The new x coordinate of lower-right corner of original bounding box.
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* @y3: The new y coordinate of lower-right corner of original bounding box.
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*
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* Perform a possibly non-affine transformation on the specified item.
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*
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* This procedure performs a possibly non-affine transformation on the
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* specified item by allowing the corners of the original bounding box
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* to be arbitrarily remapped to any values.
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*
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* The 4 coordinates specify the new locations of each corner of the
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* original bounding box. By specifying these values, any affine
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* transformation (rotation, scaling, translation) can be affected.
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* Additionally, these values can be specified such that the resulting
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* transformed item will appear to have been projected via a
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* perspective transform.
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*
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* If a selection exists and the item is a drawable, the portion of the
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* drawable which lies under the selection is cut from the drawable and
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* made into a floating selection which is then transformed as
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* specified. The return value is the ID of the transformed floating
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* selection.
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*
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* If there is no selection or the item is not a drawable, the entire
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* item will be transformed according to the specified mapping.
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* The return value will be equal to the item ID supplied as input.
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*
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* This procedure is affected by the following context setters:
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* pika_context_set_interpolation(),
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* pika_context_set_transform_direction(),
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* pika_context_set_transform_resize().
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*
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* Returns: (transfer none): The transformed item.
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*
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* Since: 2.8
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**/
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PikaItem *
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pika_item_transform_perspective (PikaItem *item,
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gdouble x0,
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gdouble y0,
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gdouble x1,
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gdouble y1,
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gdouble x2,
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gdouble y2,
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gdouble x3,
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gdouble y3)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaItem *ret_item = NULL;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_ITEM, item,
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G_TYPE_DOUBLE, x0,
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G_TYPE_DOUBLE, y0,
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G_TYPE_DOUBLE, x1,
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G_TYPE_DOUBLE, y1,
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G_TYPE_DOUBLE, x2,
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G_TYPE_DOUBLE, y2,
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G_TYPE_DOUBLE, x3,
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G_TYPE_DOUBLE, y3,
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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-item-transform-perspective",
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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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ret_item = PIKA_VALUES_GET_ITEM (return_vals, 1);
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pika_value_array_unref (return_vals);
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return ret_item;
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}
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/**
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* pika_item_transform_rotate_simple:
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* @item: The affected item.
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* @rotate_type: Type of rotation.
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* @auto_center: Whether to automatically rotate around the selection center.
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* @center_x: The hor. coordinate of the center of rotation.
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* @center_y: The vert. coordinate of the center of rotation.
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*
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* Rotate the specified item about given coordinates through the
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* specified angle.
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*
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* This function rotates the specified item.
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*
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* If a selection exists and the item is a drawable, the portion of the
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* drawable which lies under the selection is cut from the drawable and
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* made into a floating selection which is then rotated by the
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* specified amount. If auto_center is set to TRUE, the rotation is
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* around the selection's center. Otherwise, the coordinate of the
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* center point needs to be specified. The return value is the ID of
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* the rotated floating selection.
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*
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* If there is no selection or the item is not a drawable, the entire
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* item will be rotated around its center if auto_center is set to
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* TRUE, otherwise the coordinate of the center point needs to be
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* specified.
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* The return value will be equal to the item ID supplied as input.
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*
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* This procedure is affected by the following context setters:
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* pika_context_set_transform_resize().
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*
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* Returns: (transfer none): The rotated item.
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*
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* Since: 2.8
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**/
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PikaItem *
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pika_item_transform_rotate_simple (PikaItem *item,
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PikaRotationType rotate_type,
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gboolean auto_center,
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gdouble center_x,
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gdouble center_y)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaItem *ret_item = NULL;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_ITEM, item,
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PIKA_TYPE_ROTATION_TYPE, rotate_type,
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G_TYPE_BOOLEAN, auto_center,
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G_TYPE_DOUBLE, center_x,
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G_TYPE_DOUBLE, center_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-item-transform-rotate-simple",
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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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ret_item = PIKA_VALUES_GET_ITEM (return_vals, 1);
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pika_value_array_unref (return_vals);
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return ret_item;
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}
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/**
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* pika_item_transform_rotate:
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* @item: The affected item.
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* @angle: The angle of rotation (radians).
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* @auto_center: Whether to automatically rotate around the selection center.
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* @center_x: The hor. coordinate of the center of rotation.
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* @center_y: The vert. coordinate of the center of rotation.
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*
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* Rotate the specified item about given coordinates through the
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* specified angle.
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*
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* This function rotates the specified item.
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*
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* If a selection exists and the item is a drawable, the portion of the
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* drawable which lies under the selection is cut from the drawable and
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* made into a floating selection which is then rotated by the
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* specified amount. If auto_center is set to TRUE, the rotation is
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* around the selection's center. Otherwise, the coordinate of the
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* center point needs to be specified. The return value is the ID of
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* the rotated floating selection.
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*
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* If there is no selection or the item is not a drawable, the entire
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* item will be rotated around its center if auto_center is set to
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* TRUE, otherwise the coordinate of the center point needs to be
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* specified.
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* The return value will be equal to the item ID supplied as input.
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*
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* This procedure is affected by the following context setters:
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* pika_context_set_interpolation(),
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* pika_context_set_transform_direction(),
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* pika_context_set_transform_resize().
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*
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* Returns: (transfer none): The rotated item.
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*
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* Since: 2.8
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**/
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PikaItem *
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pika_item_transform_rotate (PikaItem *item,
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gdouble angle,
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gboolean auto_center,
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gdouble center_x,
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gdouble center_y)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaItem *ret_item = NULL;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_ITEM, item,
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G_TYPE_DOUBLE, angle,
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G_TYPE_BOOLEAN, auto_center,
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G_TYPE_DOUBLE, center_x,
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G_TYPE_DOUBLE, center_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-item-transform-rotate",
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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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ret_item = PIKA_VALUES_GET_ITEM (return_vals, 1);
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pika_value_array_unref (return_vals);
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return ret_item;
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}
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/**
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* pika_item_transform_scale:
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* @item: The affected item.
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* @x0: The new x coordinate of the upper-left corner of the scaled region.
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* @y0: The new y coordinate of the upper-left corner of the scaled region.
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* @x1: The new x coordinate of the lower-right corner of the scaled region.
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* @y1: The new y coordinate of the lower-right corner of the scaled region.
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*
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* Scale the specified item.
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*
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* This procedure scales the specified item.
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*
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* The 2 coordinates specify the new locations of the top-left and
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* bottom-roght corners of the original bounding box.
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*
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* If a selection exists and the item is a drawable, the portion of the
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* drawable which lies under the selection is cut from the drawable and
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* made into a floating selection which is then scaled as specified.
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* The return value is the ID of the scaled floating selection.
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*
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* If there is no selection or the item is not a drawable, the entire
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* item will be scaled according to the specified coordinates.
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* The return value will be equal to the item ID supplied as input.
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*
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* This procedure is affected by the following context setters:
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* pika_context_set_interpolation(),
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* pika_context_set_transform_direction(),
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* pika_context_set_transform_resize().
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*
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* Returns: (transfer none): The scaled item.
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*
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* Since: 2.8
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**/
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PikaItem *
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pika_item_transform_scale (PikaItem *item,
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gdouble x0,
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gdouble y0,
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gdouble x1,
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gdouble y1)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaItem *ret_item = NULL;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_ITEM, item,
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G_TYPE_DOUBLE, x0,
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G_TYPE_DOUBLE, y0,
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G_TYPE_DOUBLE, x1,
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G_TYPE_DOUBLE, y1,
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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-item-transform-scale",
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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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ret_item = PIKA_VALUES_GET_ITEM (return_vals, 1);
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pika_value_array_unref (return_vals);
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return ret_item;
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}
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/**
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* pika_item_transform_shear:
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* @item: The affected item.
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* @shear_type: Type of shear.
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* @magnitude: The magnitude of the shear.
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*
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* Shear the specified item about its center by the specified
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* magnitude.
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*
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* This procedure shears the specified item.
|
|
*
|
|
* The shear type parameter indicates whether the shear will be applied
|
|
* horizontally or vertically. The magnitude can be either positive or
|
|
* negative and indicates the extent (in pixels) to shear by.
|
|
*
|
|
* If a selection exists and the item is a drawable, the portion of the
|
|
* drawable which lies under the selection is cut from the drawable and
|
|
* made into a floating selection which is then sheared as specified.
|
|
* The return value is the ID of the sheared floating selection.
|
|
*
|
|
* If there is no selection or the item is not a drawable, the entire
|
|
* item will be sheared according to the specified parameters.
|
|
* The return value will be equal to the item ID supplied as input.
|
|
*
|
|
* This procedure is affected by the following context setters:
|
|
* pika_context_set_interpolation(),
|
|
* pika_context_set_transform_direction(),
|
|
* pika_context_set_transform_resize().
|
|
*
|
|
* Returns: (transfer none): The sheared item.
|
|
*
|
|
* Since: 2.8
|
|
**/
|
|
PikaItem *
|
|
pika_item_transform_shear (PikaItem *item,
|
|
PikaOrientationType shear_type,
|
|
gdouble magnitude)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
PikaItem *ret_item = NULL;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_ITEM, item,
|
|
PIKA_TYPE_ORIENTATION_TYPE, shear_type,
|
|
G_TYPE_DOUBLE, magnitude,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-item-transform-shear",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
|
|
ret_item = PIKA_VALUES_GET_ITEM (return_vals, 1);
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return ret_item;
|
|
}
|
|
|
|
/**
|
|
* pika_item_transform_2d:
|
|
* @item: The affected item.
|
|
* @source_x: X coordinate of the transformation center.
|
|
* @source_y: Y coordinate of the transformation center.
|
|
* @scale_x: Amount to scale in x direction.
|
|
* @scale_y: Amount to scale in y direction.
|
|
* @angle: The angle of rotation (radians).
|
|
* @dest_x: X coordinate of where the center goes.
|
|
* @dest_y: Y coordinate of where the center goes.
|
|
*
|
|
* Transform the specified item in 2d.
|
|
*
|
|
* This procedure transforms the specified item.
|
|
*
|
|
* The transformation is done by scaling by the x and y scale factors
|
|
* about the point (source_x, source_y), then rotating around the same
|
|
* point, then translating that point to the new position (dest_x,
|
|
* dest_y).
|
|
*
|
|
* If a selection exists and the item is a drawable, the portion of the
|
|
* drawable which lies under the selection is cut from the drawable and
|
|
* made into a floating selection which is then transformed as
|
|
* specified. The return value is the ID of the transformed floating
|
|
* selection.
|
|
*
|
|
* If there is no selection or the item is not a drawable, the entire
|
|
* item will be transformed according to the specified parameters.
|
|
* The return value will be equal to the item ID supplied as input.
|
|
*
|
|
* This procedure is affected by the following context setters:
|
|
* pika_context_set_interpolation(),
|
|
* pika_context_set_transform_direction(),
|
|
* pika_context_set_transform_resize().
|
|
*
|
|
* Returns: (transfer none): The transformed item.
|
|
*
|
|
* Since: 2.8
|
|
**/
|
|
PikaItem *
|
|
pika_item_transform_2d (PikaItem *item,
|
|
gdouble source_x,
|
|
gdouble source_y,
|
|
gdouble scale_x,
|
|
gdouble scale_y,
|
|
gdouble angle,
|
|
gdouble dest_x,
|
|
gdouble dest_y)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
PikaItem *ret_item = NULL;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_ITEM, item,
|
|
G_TYPE_DOUBLE, source_x,
|
|
G_TYPE_DOUBLE, source_y,
|
|
G_TYPE_DOUBLE, scale_x,
|
|
G_TYPE_DOUBLE, scale_y,
|
|
G_TYPE_DOUBLE, angle,
|
|
G_TYPE_DOUBLE, dest_x,
|
|
G_TYPE_DOUBLE, dest_y,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-item-transform-2d",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
|
|
ret_item = PIKA_VALUES_GET_ITEM (return_vals, 1);
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return ret_item;
|
|
}
|
|
|
|
/**
|
|
* pika_item_transform_matrix:
|
|
* @item: The affected item.
|
|
* @coeff_0_0: coefficient (0,0) of the transformation matrix.
|
|
* @coeff_0_1: coefficient (0,1) of the transformation matrix.
|
|
* @coeff_0_2: coefficient (0,2) of the transformation matrix.
|
|
* @coeff_1_0: coefficient (1,0) of the transformation matrix.
|
|
* @coeff_1_1: coefficient (1,1) of the transformation matrix.
|
|
* @coeff_1_2: coefficient (1,2) of the transformation matrix.
|
|
* @coeff_2_0: coefficient (2,0) of the transformation matrix.
|
|
* @coeff_2_1: coefficient (2,1) of the transformation matrix.
|
|
* @coeff_2_2: coefficient (2,2) of the transformation matrix.
|
|
*
|
|
* Transform the specified item in 2d.
|
|
*
|
|
* This procedure transforms the specified item.
|
|
*
|
|
* The transformation is done by assembling a 3x3 matrix from the
|
|
* coefficients passed.
|
|
*
|
|
* If a selection exists and the item is a drawable, the portion of the
|
|
* drawable which lies under the selection is cut from the drawable and
|
|
* made into a floating selection which is then transformed as
|
|
* specified. The return value is the ID of the transformed floating
|
|
* selection.
|
|
*
|
|
* If there is no selection or the item is not a drawable, the entire
|
|
* item will be transformed according to the specified matrix.
|
|
* The return value will be equal to the item ID supplied as input.
|
|
*
|
|
* This procedure is affected by the following context setters:
|
|
* pika_context_set_interpolation(),
|
|
* pika_context_set_transform_direction(),
|
|
* pika_context_set_transform_resize().
|
|
*
|
|
* Returns: (transfer none): The transformed item.
|
|
*
|
|
* Since: 2.8
|
|
**/
|
|
PikaItem *
|
|
pika_item_transform_matrix (PikaItem *item,
|
|
gdouble coeff_0_0,
|
|
gdouble coeff_0_1,
|
|
gdouble coeff_0_2,
|
|
gdouble coeff_1_0,
|
|
gdouble coeff_1_1,
|
|
gdouble coeff_1_2,
|
|
gdouble coeff_2_0,
|
|
gdouble coeff_2_1,
|
|
gdouble coeff_2_2)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
PikaItem *ret_item = NULL;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_ITEM, item,
|
|
G_TYPE_DOUBLE, coeff_0_0,
|
|
G_TYPE_DOUBLE, coeff_0_1,
|
|
G_TYPE_DOUBLE, coeff_0_2,
|
|
G_TYPE_DOUBLE, coeff_1_0,
|
|
G_TYPE_DOUBLE, coeff_1_1,
|
|
G_TYPE_DOUBLE, coeff_1_2,
|
|
G_TYPE_DOUBLE, coeff_2_0,
|
|
G_TYPE_DOUBLE, coeff_2_1,
|
|
G_TYPE_DOUBLE, coeff_2_2,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-item-transform-matrix",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
|
|
ret_item = PIKA_VALUES_GET_ITEM (return_vals, 1);
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return ret_item;
|
|
}
|
