/* LIBPIKA - The PIKA Library * Copyright (C) 1995-2003 Peter Mattis and Spencer Kimball * * pikaitemtransform_pdb.c * * This library is free software: you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 3 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see * . */ /* NOTE: This file is auto-generated by pdbgen.pl */ #include "config.h" #include "stamp-pdbgen.h" #include "pika.h" /** * SECTION: pikaitemtransform * @title: pikaitemtransform * @short_description: Functions to perform transformations on items. * * Functions to perform transformations on items. **/ /** * pika_item_transform_translate: * @item: The item. * @off_x: Offset in x direction. * @off_y: Offset in y direction. * * Translate the item by the specified offsets. * * This procedure translates the item by the amounts specified in the * off_x and off_y arguments. These can be negative, and are considered * offsets from the current position. The offsets will be rounded to * the nearest pixel unless the item is a path. * * Returns: (transfer none): The translated item. * * Since: 2.10 **/ PikaItem * pika_item_transform_translate (PikaItem *item, gdouble off_x, gdouble off_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, off_x, G_TYPE_DOUBLE, off_y, G_TYPE_NONE); return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (), "pika-item-transform-translate", 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_flip_simple: * @item: The affected item. * @flip_type: Type of flip. * @auto_center: Whether to automatically position the axis in the selection center. * @axis: coord. of flip axis. * * Flip the specified item either vertically or horizontally. * * This procedure flips the specified item. * * 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 flipped. If auto_center * is set to TRUE, the flip is around the selection's center. * Otherwise, the coordinate of the axis needs to be specified. The * return value is the ID of the flipped floating selection. * * If there is no selection or the item is not a drawable, the entire * item will be flipped around its center if auto_center is set to * TRUE, otherwise the coordinate of the axis needs to be specified. * 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_transform_resize(). * * Returns: (transfer none): The flipped item. * * Since: 2.2 **/ PikaItem * pika_item_transform_flip_simple (PikaItem *item, PikaOrientationType flip_type, gboolean auto_center, gdouble axis) { 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, flip_type, G_TYPE_BOOLEAN, auto_center, G_TYPE_DOUBLE, axis, G_TYPE_NONE); return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (), "pika-item-transform-flip-simple", 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_flip: * @item: The affected item. * @x0: horz. coord. of one end of axis. * @y0: vert. coord. of one end of axis. * @x1: horz. coord. of other end of axis. * @y1: vert. coord. of other end of axis. * * Flip the specified item around a given line. * * This procedure flips the specified item. * * 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 flipped. The axis to * flip around is specified by specifying two points from that line. * The return value is the ID of the flipped floating selection. * * If there is no selection or the item is not a drawable, the entire * item will be flipped around the specified axis. 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 flipped item. * * Since: 2.8 **/ PikaItem * pika_item_transform_flip (PikaItem *item, gdouble x0, gdouble y0, gdouble x1, gdouble y1) { PikaValueArray *args; PikaValueArray *return_vals; PikaItem *ret_item = NULL; args = pika_value_array_new_from_types (NULL, PIKA_TYPE_ITEM, item, G_TYPE_DOUBLE, x0, G_TYPE_DOUBLE, y0, G_TYPE_DOUBLE, x1, G_TYPE_DOUBLE, y1, G_TYPE_NONE); return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (), "pika-item-transform-flip", 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_perspective: * @item: The affected item. * @x0: The new x coordinate of upper-left corner of original bounding box. * @y0: The new y coordinate of upper-left corner of original bounding box. * @x1: The new x coordinate of upper-right corner of original bounding box. * @y1: The new y coordinate of upper-right corner of original bounding box. * @x2: The new x coordinate of lower-left corner of original bounding box. * @y2: The new y coordinate of lower-left corner of original bounding box. * @x3: The new x coordinate of lower-right corner of original bounding box. * @y3: The new y coordinate of lower-right corner of original bounding box. * * Perform a possibly non-affine transformation on the specified item. * * This procedure performs a possibly non-affine transformation on the * specified item by allowing the corners of the original bounding box * to be arbitrarily remapped to any values. * * The 4 coordinates specify the new locations of each corner of the * original bounding box. By specifying these values, any affine * transformation (rotation, scaling, translation) can be affected. * Additionally, these values can be specified such that the resulting * transformed item will appear to have been projected via a * perspective transform. * * 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 mapping. * 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_perspective (PikaItem *item, gdouble x0, gdouble y0, gdouble x1, gdouble y1, gdouble x2, gdouble y2, gdouble x3, gdouble y3) { PikaValueArray *args; PikaValueArray *return_vals; PikaItem *ret_item = NULL; args = pika_value_array_new_from_types (NULL, PIKA_TYPE_ITEM, item, G_TYPE_DOUBLE, x0, G_TYPE_DOUBLE, y0, G_TYPE_DOUBLE, x1, G_TYPE_DOUBLE, y1, G_TYPE_DOUBLE, x2, G_TYPE_DOUBLE, y2, G_TYPE_DOUBLE, x3, G_TYPE_DOUBLE, y3, G_TYPE_NONE); return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (), "pika-item-transform-perspective", 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_rotate_simple: * @item: The affected item. * @rotate_type: Type of rotation. * @auto_center: Whether to automatically rotate around the selection center. * @center_x: The hor. coordinate of the center of rotation. * @center_y: The vert. coordinate of the center of rotation. * * Rotate the specified item about given coordinates through the * specified angle. * * This function rotates the specified item. * * 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 rotated by the * specified amount. If auto_center is set to TRUE, the rotation is * around the selection's center. Otherwise, the coordinate of the * center point needs to be specified. The return value is the ID of * the rotated floating selection. * * If there is no selection or the item is not a drawable, the entire * item will be rotated around its center if auto_center is set to * TRUE, otherwise the coordinate of the center point needs to be * specified. * 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_transform_resize(). * * Returns: (transfer none): The rotated item. * * Since: 2.8 **/ PikaItem * pika_item_transform_rotate_simple (PikaItem *item, PikaRotationType rotate_type, gboolean auto_center, gdouble center_x, gdouble center_y) { PikaValueArray *args; PikaValueArray *return_vals; PikaItem *ret_item = NULL; args = pika_value_array_new_from_types (NULL, PIKA_TYPE_ITEM, item, PIKA_TYPE_ROTATION_TYPE, rotate_type, G_TYPE_BOOLEAN, auto_center, G_TYPE_DOUBLE, center_x, G_TYPE_DOUBLE, center_y, G_TYPE_NONE); return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (), "pika-item-transform-rotate-simple", 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_rotate: * @item: The affected item. * @angle: The angle of rotation (radians). * @auto_center: Whether to automatically rotate around the selection center. * @center_x: The hor. coordinate of the center of rotation. * @center_y: The vert. coordinate of the center of rotation. * * Rotate the specified item about given coordinates through the * specified angle. * * This function rotates the specified item. * * 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 rotated by the * specified amount. If auto_center is set to TRUE, the rotation is * around the selection's center. Otherwise, the coordinate of the * center point needs to be specified. The return value is the ID of * the rotated floating selection. * * If there is no selection or the item is not a drawable, the entire * item will be rotated around its center if auto_center is set to * TRUE, otherwise the coordinate of the center point needs to be * specified. * 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 rotated item. * * Since: 2.8 **/ PikaItem * pika_item_transform_rotate (PikaItem *item, gdouble angle, gboolean auto_center, gdouble center_x, gdouble center_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, angle, G_TYPE_BOOLEAN, auto_center, G_TYPE_DOUBLE, center_x, G_TYPE_DOUBLE, center_y, G_TYPE_NONE); return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (), "pika-item-transform-rotate", 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_scale: * @item: The affected item. * @x0: The new x coordinate of the upper-left corner of the scaled region. * @y0: The new y coordinate of the upper-left corner of the scaled region. * @x1: The new x coordinate of the lower-right corner of the scaled region. * @y1: The new y coordinate of the lower-right corner of the scaled region. * * Scale the specified item. * * This procedure scales the specified item. * * The 2 coordinates specify the new locations of the top-left and * bottom-roght corners of the original bounding box. * * 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 scaled as specified. * The return value is the ID of the scaled floating selection. * * If there is no selection or the item is not a drawable, the entire * item will be scaled according to the specified coordinates. * 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 scaled item. * * Since: 2.8 **/ PikaItem * pika_item_transform_scale (PikaItem *item, gdouble x0, gdouble y0, gdouble x1, gdouble y1) { PikaValueArray *args; PikaValueArray *return_vals; PikaItem *ret_item = NULL; args = pika_value_array_new_from_types (NULL, PIKA_TYPE_ITEM, item, G_TYPE_DOUBLE, x0, G_TYPE_DOUBLE, y0, G_TYPE_DOUBLE, x1, G_TYPE_DOUBLE, y1, G_TYPE_NONE); return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (), "pika-item-transform-scale", 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_shear: * @item: The affected item. * @shear_type: Type of shear. * @magnitude: The magnitude of the shear. * * Shear the specified item about its center by the specified * magnitude. * * 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; }