1277 lines
42 KiB
C
1277 lines
42 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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* pikavectors_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: pikavectors
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* @title: pikavectors
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* @short_description: Functions for querying and manipulating vectors.
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*
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* Functions for querying and manipulating vectors.
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**/
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/**
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* pika_vectors_new:
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* @image: The image.
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* @name: the name of the new vector object.
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*
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* Creates a new empty vectors object.
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*
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* Creates a new empty vectors object. The vectors object needs to be
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* added to the image using pika_image_insert_vectors().
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*
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* Returns: (transfer none):
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* the current vector object, 0 if no vector exists in the image.
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*
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* Since: 2.4
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**/
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PikaVectors *
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pika_vectors_new (PikaImage *image,
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const gchar *name)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaVectors *vectors = NULL;
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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_STRING, name,
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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-vectors-new",
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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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vectors = PIKA_VALUES_GET_VECTORS (return_vals, 1);
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pika_value_array_unref (return_vals);
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return vectors;
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}
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/**
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* pika_vectors_new_from_text_layer:
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* @image: The image.
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* @layer: The text layer.
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*
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* Creates a new vectors object from a text layer.
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*
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* Creates a new vectors object from a text layer. The vectors object
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* needs to be added to the image using pika_image_insert_vectors().
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*
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* Returns: (transfer none): The vectors of the text layer.
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*
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* Since: 2.6
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**/
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PikaVectors *
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pika_vectors_new_from_text_layer (PikaImage *image,
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PikaLayer *layer)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaVectors *vectors = NULL;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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PIKA_TYPE_LAYER, layer,
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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-vectors-new-from-text-layer",
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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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vectors = PIKA_VALUES_GET_VECTORS (return_vals, 1);
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pika_value_array_unref (return_vals);
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return vectors;
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}
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/**
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* pika_vectors_copy:
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* @vectors: The vectors object to copy.
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*
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* Copy a vectors object.
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*
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* This procedure copies the specified vectors object and returns the
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* copy.
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*
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* Returns: (transfer none): The newly copied vectors object.
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*
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* Since: 2.6
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**/
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PikaVectors *
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pika_vectors_copy (PikaVectors *vectors)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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PikaVectors *vectors_copy = NULL;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_VECTORS, vectors,
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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-vectors-copy",
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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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vectors_copy = PIKA_VALUES_GET_VECTORS (return_vals, 1);
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pika_value_array_unref (return_vals);
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return vectors_copy;
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}
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/**
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* pika_vectors_get_strokes:
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* @vectors: The vectors object.
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* @num_strokes: (out): The number of strokes returned.
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*
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* List the strokes associated with the passed path.
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*
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* Returns an Array with the stroke-IDs associated with the passed
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* path.
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*
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* Returns: (array length=num_strokes) (element-type gint32) (transfer full):
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* List of the strokes belonging to the path.
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* The returned value must be freed with g_free().
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*
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* Since: 2.4
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**/
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gint *
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pika_vectors_get_strokes (PikaVectors *vectors,
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gint *num_strokes)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gint *stroke_ids = NULL;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_VECTORS, vectors,
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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-vectors-get-strokes",
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args);
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pika_value_array_unref (args);
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*num_strokes = 0;
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if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
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{
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*num_strokes = PIKA_VALUES_GET_INT (return_vals, 1);
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stroke_ids = PIKA_VALUES_DUP_INT32_ARRAY (return_vals, 2);
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}
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pika_value_array_unref (return_vals);
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return stroke_ids;
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}
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/**
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* pika_vectors_stroke_get_length:
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* @vectors: The vectors object.
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* @stroke_id: The stroke ID.
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* @precision: The precision used for approximating straight portions of the stroke.
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*
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* Measure the length of the given stroke.
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*
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* Measure the length of the given stroke.
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*
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* Returns: The length (in pixels) of the given stroke.
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*
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* Since: 2.4
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**/
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gdouble
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pika_vectors_stroke_get_length (PikaVectors *vectors,
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gint stroke_id,
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gdouble precision)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gdouble length = 0.0;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_VECTORS, vectors,
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G_TYPE_INT, stroke_id,
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G_TYPE_DOUBLE, precision,
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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-vectors-stroke-get-length",
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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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length = PIKA_VALUES_GET_DOUBLE (return_vals, 1);
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pika_value_array_unref (return_vals);
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return length;
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}
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/**
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* pika_vectors_stroke_get_point_at_dist:
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* @vectors: The vectors object.
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* @stroke_id: The stroke ID.
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* @dist: The given distance.
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* @precision: The precision used for the approximation.
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* @x_point: (out): The x position of the point.
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* @y_point: (out): The y position of the point.
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* @slope: (out): The slope (dy / dx) at the specified point.
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* @valid: (out): Indicator for the validity of the returned data.
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*
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* Get point at a specified distance along the stroke.
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*
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* This will return the x,y position of a point at a given distance
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* along the stroke. The distance will be obtained by first digitizing
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* the curve internally and then walking along the curve. For a closed
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* stroke the start of the path is the first point on the path that was
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* created. This might not be obvious. If the stroke is not long
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* enough, a \"valid\" flag will be FALSE.
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*
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* Returns: TRUE on success.
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*
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* Since: 2.4
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**/
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gboolean
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pika_vectors_stroke_get_point_at_dist (PikaVectors *vectors,
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gint stroke_id,
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gdouble dist,
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gdouble precision,
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gdouble *x_point,
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gdouble *y_point,
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gdouble *slope,
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gboolean *valid)
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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_VECTORS, vectors,
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G_TYPE_INT, stroke_id,
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G_TYPE_DOUBLE, dist,
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G_TYPE_DOUBLE, precision,
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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-vectors-stroke-get-point-at-dist",
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args);
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pika_value_array_unref (args);
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*x_point = 0.0;
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*y_point = 0.0;
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*slope = 0.0;
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*valid = FALSE;
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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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*x_point = PIKA_VALUES_GET_DOUBLE (return_vals, 1);
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*y_point = PIKA_VALUES_GET_DOUBLE (return_vals, 2);
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*slope = PIKA_VALUES_GET_DOUBLE (return_vals, 3);
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*valid = PIKA_VALUES_GET_BOOLEAN (return_vals, 4);
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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_vectors_remove_stroke:
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* @vectors: The vectors object.
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* @stroke_id: The stroke ID.
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*
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* remove the stroke from a vectors object.
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*
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* Remove the stroke from a vectors object.
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*
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* Returns: TRUE on success.
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*
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* Since: 2.4
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**/
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gboolean
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pika_vectors_remove_stroke (PikaVectors *vectors,
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gint stroke_id)
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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_VECTORS, vectors,
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G_TYPE_INT, stroke_id,
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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-vectors-remove-stroke",
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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_vectors_stroke_close:
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* @vectors: The vectors object.
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* @stroke_id: The stroke ID.
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*
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* closes the specified stroke.
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*
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* Closes the specified stroke.
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*
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* Returns: TRUE on success.
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*
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* Since: 2.4
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**/
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gboolean
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pika_vectors_stroke_close (PikaVectors *vectors,
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gint stroke_id)
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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_VECTORS, vectors,
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G_TYPE_INT, stroke_id,
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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-vectors-stroke-close",
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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_vectors_stroke_reverse:
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* @vectors: The vectors object.
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* @stroke_id: The stroke ID.
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*
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* reverses the specified stroke.
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*
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* Reverses the specified stroke.
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*
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* Returns: TRUE on success.
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*
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* Since: 3.0
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**/
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gboolean
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pika_vectors_stroke_reverse (PikaVectors *vectors,
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gint stroke_id)
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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_VECTORS, vectors,
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G_TYPE_INT, stroke_id,
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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-vectors-stroke-reverse",
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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_vectors_stroke_translate:
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* @vectors: The vectors object.
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* @stroke_id: The stroke ID.
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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 given stroke.
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*
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* Translate the given stroke.
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*
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* Returns: TRUE on success.
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*
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* Since: 2.4
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**/
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gboolean
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pika_vectors_stroke_translate (PikaVectors *vectors,
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gint stroke_id,
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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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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_VECTORS, vectors,
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G_TYPE_INT, stroke_id,
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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-vectors-stroke-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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/**
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* pika_vectors_stroke_scale:
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* @vectors: The vectors object.
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* @stroke_id: The stroke ID.
|
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* @scale_x: Scale factor in x direction.
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* @scale_y: Scale factor in y direction.
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*
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* scales the given stroke.
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*
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* Scale the given stroke.
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*
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* Returns: TRUE on success.
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*
|
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* Since: 2.4
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**/
|
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gboolean
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pika_vectors_stroke_scale (PikaVectors *vectors,
|
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gint stroke_id,
|
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gdouble scale_x,
|
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gdouble scale_y)
|
|
{
|
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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_VECTORS, vectors,
|
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G_TYPE_INT, stroke_id,
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G_TYPE_DOUBLE, scale_x,
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G_TYPE_DOUBLE, scale_y,
|
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G_TYPE_NONE);
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|
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return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-vectors-stroke-scale",
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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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}
|
|
|
|
/**
|
|
* pika_vectors_stroke_rotate:
|
|
* @vectors: The vectors object.
|
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* @stroke_id: The stroke ID.
|
|
* @center_x: X coordinate of the rotation center.
|
|
* @center_y: Y coordinate of the rotation center.
|
|
* @angle: angle to rotate about.
|
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*
|
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* rotates the given stroke.
|
|
*
|
|
* Rotates the given stroke around given center by angle (in degrees).
|
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*
|
|
* Returns: TRUE on success.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gboolean
|
|
pika_vectors_stroke_rotate (PikaVectors *vectors,
|
|
gint stroke_id,
|
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gdouble center_x,
|
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gdouble center_y,
|
|
gdouble angle)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gboolean success = TRUE;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_INT, stroke_id,
|
|
G_TYPE_DOUBLE, center_x,
|
|
G_TYPE_DOUBLE, center_y,
|
|
G_TYPE_DOUBLE, angle,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-stroke-rotate",
|
|
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_vectors_stroke_flip:
|
|
* @vectors: The vectors object.
|
|
* @stroke_id: The stroke ID.
|
|
* @flip_type: Flip orientation, either vertical or horizontal.
|
|
* @axis: axis coordinate about which to flip, in pixels.
|
|
*
|
|
* flips the given stroke.
|
|
*
|
|
* Rotates the given stroke around given center by angle (in degrees).
|
|
*
|
|
* Returns: TRUE on success.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gboolean
|
|
pika_vectors_stroke_flip (PikaVectors *vectors,
|
|
gint stroke_id,
|
|
PikaOrientationType flip_type,
|
|
gdouble axis)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gboolean success = TRUE;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_INT, stroke_id,
|
|
PIKA_TYPE_ORIENTATION_TYPE, flip_type,
|
|
G_TYPE_DOUBLE, axis,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-stroke-flip",
|
|
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_vectors_stroke_flip_free:
|
|
* @vectors: The vectors object.
|
|
* @stroke_id: The stroke ID.
|
|
* @x1: X coordinate of the first point of the flipping axis.
|
|
* @y1: Y coordinate of the first point of the flipping axis.
|
|
* @x2: X coordinate of the second point of the flipping axis.
|
|
* @y2: Y coordinate of the second point of the flipping axis.
|
|
*
|
|
* flips the given stroke about an arbitrary axis.
|
|
*
|
|
* Flips the given stroke about an arbitrary axis. Axis is defined by
|
|
* two coordinates in the image (in pixels), through which the flipping
|
|
* axis passes.
|
|
*
|
|
* Returns: TRUE on success.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gboolean
|
|
pika_vectors_stroke_flip_free (PikaVectors *vectors,
|
|
gint stroke_id,
|
|
gdouble x1,
|
|
gdouble y1,
|
|
gdouble x2,
|
|
gdouble y2)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gboolean success = TRUE;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_INT, stroke_id,
|
|
G_TYPE_DOUBLE, x1,
|
|
G_TYPE_DOUBLE, y1,
|
|
G_TYPE_DOUBLE, x2,
|
|
G_TYPE_DOUBLE, y2,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-stroke-flip-free",
|
|
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_vectors_stroke_get_points:
|
|
* @vectors: The vectors object.
|
|
* @stroke_id: The stroke ID.
|
|
* @num_points: (out): The number of floats returned.
|
|
* @controlpoints: (out) (array length=num_points) (element-type gdouble) (transfer full): List of the control points for the stroke (x0, y0, x1, y1, ...).
|
|
* @closed: (out): Whether the stroke is closed or not.
|
|
*
|
|
* returns the control points of a stroke.
|
|
*
|
|
* returns the control points of a stroke. The interpretation of the
|
|
* coordinates returned depends on the type of the stroke. For Pika 2.4
|
|
* this is always a bezier stroke, where the coordinates are the
|
|
* control points.
|
|
*
|
|
* Returns: type of the stroke (always PIKA_VECTORS_STROKE_TYPE_BEZIER for now).
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
PikaVectorsStrokeType
|
|
pika_vectors_stroke_get_points (PikaVectors *vectors,
|
|
gint stroke_id,
|
|
gint *num_points,
|
|
gdouble **controlpoints,
|
|
gboolean *closed)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
PikaVectorsStrokeType type = 0;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_INT, stroke_id,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-stroke-get-points",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
*num_points = 0;
|
|
|
|
if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
|
|
{
|
|
type = PIKA_VALUES_GET_ENUM (return_vals, 1);
|
|
*num_points = PIKA_VALUES_GET_INT (return_vals, 2);
|
|
*controlpoints = PIKA_VALUES_DUP_FLOAT_ARRAY (return_vals, 3);
|
|
*closed = PIKA_VALUES_GET_BOOLEAN (return_vals, 4);
|
|
}
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return type;
|
|
}
|
|
|
|
/**
|
|
* pika_vectors_stroke_new_from_points:
|
|
* @vectors: The vectors object.
|
|
* @type: type of the stroke (always PIKA_VECTORS_STROKE_TYPE_BEZIER for now).
|
|
* @num_points: The number of elements in the array, i.e. the number of controlpoints in the stroke * 2 (x- and y-coordinate).
|
|
* @controlpoints: (array length=num_points) (element-type gdouble): List of the x- and y-coordinates of the control points.
|
|
* @closed: Whether the stroke is to be closed or not.
|
|
*
|
|
* Adds a stroke of a given type to the vectors object.
|
|
*
|
|
* Adds a stroke of a given type to the vectors object. The coordinates
|
|
* of the control points can be specified. For now only strokes of the
|
|
* type PIKA_VECTORS_STROKE_TYPE_BEZIER are supported. The control
|
|
* points are specified as a pair of float values for the x- and
|
|
* y-coordinate. The Bezier stroke type needs a multiple of three
|
|
* control points. Each Bezier segment endpoint (anchor, A) has two
|
|
* additional control points (C) associated. They are specified in the
|
|
* order CACCACCAC...
|
|
*
|
|
* Returns: The stroke ID of the newly created stroke.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gint
|
|
pika_vectors_stroke_new_from_points (PikaVectors *vectors,
|
|
PikaVectorsStrokeType type,
|
|
gint num_points,
|
|
const gdouble *controlpoints,
|
|
gboolean closed)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gint stroke_id = 0;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
PIKA_TYPE_VECTORS_STROKE_TYPE, type,
|
|
G_TYPE_INT, num_points,
|
|
PIKA_TYPE_FLOAT_ARRAY, NULL,
|
|
G_TYPE_BOOLEAN, closed,
|
|
G_TYPE_NONE);
|
|
pika_value_set_float_array (pika_value_array_index (args, 3), controlpoints, num_points);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-stroke-new-from-points",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
|
|
stroke_id = PIKA_VALUES_GET_INT (return_vals, 1);
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return stroke_id;
|
|
}
|
|
|
|
/**
|
|
* pika_vectors_stroke_interpolate:
|
|
* @vectors: The vectors object.
|
|
* @stroke_id: The stroke ID.
|
|
* @precision: The precision used for the approximation.
|
|
* @num_coords: (out): The number of floats returned.
|
|
* @closed: (out): Whether the stroke is closed or not.
|
|
*
|
|
* returns polygonal approximation of the stroke.
|
|
*
|
|
* returns polygonal approximation of the stroke.
|
|
*
|
|
* Returns: (array length=num_coords) (element-type gdouble) (transfer full):
|
|
* List of the coords along the path (x0, y0, x1, y1, ...).
|
|
* The returned value must be freed with g_free().
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gdouble *
|
|
pika_vectors_stroke_interpolate (PikaVectors *vectors,
|
|
gint stroke_id,
|
|
gdouble precision,
|
|
gint *num_coords,
|
|
gboolean *closed)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gdouble *coords = NULL;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_INT, stroke_id,
|
|
G_TYPE_DOUBLE, precision,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-stroke-interpolate",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
*num_coords = 0;
|
|
|
|
if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
|
|
{
|
|
*num_coords = PIKA_VALUES_GET_INT (return_vals, 1);
|
|
coords = PIKA_VALUES_DUP_FLOAT_ARRAY (return_vals, 2);
|
|
*closed = PIKA_VALUES_GET_BOOLEAN (return_vals, 3);
|
|
}
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return coords;
|
|
}
|
|
|
|
/**
|
|
* pika_vectors_bezier_stroke_new_moveto:
|
|
* @vectors: The vectors object.
|
|
* @x0: The x-coordinate of the moveto.
|
|
* @y0: The y-coordinate of the moveto.
|
|
*
|
|
* Adds a bezier stroke with a single moveto to the vectors object.
|
|
*
|
|
* Adds a bezier stroke with a single moveto to the vectors object.
|
|
*
|
|
* Returns: The resulting stroke.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gint
|
|
pika_vectors_bezier_stroke_new_moveto (PikaVectors *vectors,
|
|
gdouble x0,
|
|
gdouble y0)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gint stroke_id = 0;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_DOUBLE, x0,
|
|
G_TYPE_DOUBLE, y0,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-bezier-stroke-new-moveto",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
|
|
stroke_id = PIKA_VALUES_GET_INT (return_vals, 1);
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return stroke_id;
|
|
}
|
|
|
|
/**
|
|
* pika_vectors_bezier_stroke_lineto:
|
|
* @vectors: The vectors object.
|
|
* @stroke_id: The stroke ID.
|
|
* @x0: The x-coordinate of the lineto.
|
|
* @y0: The y-coordinate of the lineto.
|
|
*
|
|
* Extends a bezier stroke with a lineto.
|
|
*
|
|
* Extends a bezier stroke with a lineto.
|
|
*
|
|
* Returns: TRUE on success.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gboolean
|
|
pika_vectors_bezier_stroke_lineto (PikaVectors *vectors,
|
|
gint stroke_id,
|
|
gdouble x0,
|
|
gdouble y0)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gboolean success = TRUE;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_INT, stroke_id,
|
|
G_TYPE_DOUBLE, x0,
|
|
G_TYPE_DOUBLE, y0,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-bezier-stroke-lineto",
|
|
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_vectors_bezier_stroke_conicto:
|
|
* @vectors: The vectors object.
|
|
* @stroke_id: The stroke ID.
|
|
* @x0: The x-coordinate of the control point.
|
|
* @y0: The y-coordinate of the control point.
|
|
* @x1: The x-coordinate of the end point.
|
|
* @y1: The y-coordinate of the end point.
|
|
*
|
|
* Extends a bezier stroke with a conic bezier spline.
|
|
*
|
|
* Extends a bezier stroke with a conic bezier spline. Actually a cubic
|
|
* bezier spline gets added that realizes the shape of a conic bezier
|
|
* spline.
|
|
*
|
|
* Returns: TRUE on success.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gboolean
|
|
pika_vectors_bezier_stroke_conicto (PikaVectors *vectors,
|
|
gint stroke_id,
|
|
gdouble x0,
|
|
gdouble y0,
|
|
gdouble x1,
|
|
gdouble y1)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gboolean success = TRUE;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_INT, stroke_id,
|
|
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-vectors-bezier-stroke-conicto",
|
|
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_vectors_bezier_stroke_cubicto:
|
|
* @vectors: The vectors object.
|
|
* @stroke_id: The stroke ID.
|
|
* @x0: The x-coordinate of the first control point.
|
|
* @y0: The y-coordinate of the first control point.
|
|
* @x1: The x-coordinate of the second control point.
|
|
* @y1: The y-coordinate of the second control point.
|
|
* @x2: The x-coordinate of the end point.
|
|
* @y2: The y-coordinate of the end point.
|
|
*
|
|
* Extends a bezier stroke with a cubic bezier spline.
|
|
*
|
|
* Extends a bezier stroke with a cubic bezier spline.
|
|
*
|
|
* Returns: TRUE on success.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gboolean
|
|
pika_vectors_bezier_stroke_cubicto (PikaVectors *vectors,
|
|
gint stroke_id,
|
|
gdouble x0,
|
|
gdouble y0,
|
|
gdouble x1,
|
|
gdouble y1,
|
|
gdouble x2,
|
|
gdouble y2)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gboolean success = TRUE;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_INT, stroke_id,
|
|
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_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-bezier-stroke-cubicto",
|
|
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_vectors_bezier_stroke_new_ellipse:
|
|
* @vectors: The vectors object.
|
|
* @x0: The x-coordinate of the center.
|
|
* @y0: The y-coordinate of the center.
|
|
* @radius_x: The radius in x direction.
|
|
* @radius_y: The radius in y direction.
|
|
* @angle: The angle the x-axis of the ellipse (radians, counterclockwise).
|
|
*
|
|
* Adds a bezier stroke describing an ellipse the vectors object.
|
|
*
|
|
* Adds a bezier stroke describing an ellipse the vectors object.
|
|
*
|
|
* Returns: The resulting stroke.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gint
|
|
pika_vectors_bezier_stroke_new_ellipse (PikaVectors *vectors,
|
|
gdouble x0,
|
|
gdouble y0,
|
|
gdouble radius_x,
|
|
gdouble radius_y,
|
|
gdouble angle)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gint stroke_id = 0;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_DOUBLE, x0,
|
|
G_TYPE_DOUBLE, y0,
|
|
G_TYPE_DOUBLE, radius_x,
|
|
G_TYPE_DOUBLE, radius_y,
|
|
G_TYPE_DOUBLE, angle,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-bezier-stroke-new-ellipse",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
|
|
stroke_id = PIKA_VALUES_GET_INT (return_vals, 1);
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return stroke_id;
|
|
}
|
|
|
|
/**
|
|
* pika_vectors_import_from_file:
|
|
* @image: The image.
|
|
* @file: The SVG file to import.
|
|
* @merge: Merge paths into a single vectors object.
|
|
* @scale: Scale the SVG to image dimensions.
|
|
* @num_vectors: (out): The number of newly created vectors.
|
|
* @vectors: (out) (array length=num_vectors) (element-type PikaVectors) (transfer container): The list of newly created vectors.
|
|
*
|
|
* Import paths from an SVG file.
|
|
*
|
|
* This procedure imports paths from an SVG file. SVG elements other
|
|
* than paths and basic shapes are ignored.
|
|
*
|
|
* Returns: TRUE on success.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gboolean
|
|
pika_vectors_import_from_file (PikaImage *image,
|
|
GFile *file,
|
|
gboolean merge,
|
|
gboolean scale,
|
|
gint *num_vectors,
|
|
PikaVectors ***vectors)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gboolean success = TRUE;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_IMAGE, image,
|
|
G_TYPE_FILE, file,
|
|
G_TYPE_BOOLEAN, merge,
|
|
G_TYPE_BOOLEAN, scale,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-import-from-file",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
*num_vectors = 0;
|
|
*vectors = NULL;
|
|
|
|
success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
|
|
|
|
if (success)
|
|
{
|
|
*num_vectors = PIKA_VALUES_GET_INT (return_vals, 1);
|
|
{ PikaObjectArray *a = g_value_get_boxed (pika_value_array_index (return_vals, 2)); if (a) *vectors = g_memdup2 (a->data, a->length * sizeof (gpointer)); };
|
|
}
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return success;
|
|
}
|
|
|
|
/**
|
|
* pika_vectors_import_from_string:
|
|
* @image: The image.
|
|
* @string: A string that must be a complete and valid SVG document.
|
|
* @length: Number of bytes in string or -1 if the string is NULL terminated.
|
|
* @merge: Merge paths into a single vectors object.
|
|
* @scale: Scale the SVG to image dimensions.
|
|
* @num_vectors: (out): The number of newly created vectors.
|
|
* @vectors: (out) (array length=num_vectors) (element-type PikaVectors) (transfer container): The list of newly created vectors.
|
|
*
|
|
* Import paths from an SVG string.
|
|
*
|
|
* This procedure works like pika_vectors_import_from_file() but takes
|
|
* a string rather than reading the SVG from a file. This allows you to
|
|
* write scripts that generate SVG and feed it to PIKA.
|
|
*
|
|
* Returns: TRUE on success.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gboolean
|
|
pika_vectors_import_from_string (PikaImage *image,
|
|
const gchar *string,
|
|
gint length,
|
|
gboolean merge,
|
|
gboolean scale,
|
|
gint *num_vectors,
|
|
PikaVectors ***vectors)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gboolean success = TRUE;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_IMAGE, image,
|
|
G_TYPE_STRING, string,
|
|
G_TYPE_INT, length,
|
|
G_TYPE_BOOLEAN, merge,
|
|
G_TYPE_BOOLEAN, scale,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-import-from-string",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
*num_vectors = 0;
|
|
*vectors = NULL;
|
|
|
|
success = PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS;
|
|
|
|
if (success)
|
|
{
|
|
*num_vectors = PIKA_VALUES_GET_INT (return_vals, 1);
|
|
{ PikaObjectArray *a = g_value_get_boxed (pika_value_array_index (return_vals, 2)); if (a) *vectors = g_memdup2 (a->data, a->length * sizeof (gpointer)); };
|
|
}
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return success;
|
|
}
|
|
|
|
/**
|
|
* pika_vectors_export_to_file:
|
|
* @image: The image.
|
|
* @file: The SVG file to create.
|
|
* @vectors: The vectors object to export, or %NULL for all in the image.
|
|
*
|
|
* save a path as an SVG file.
|
|
*
|
|
* This procedure creates an SVG file to save a Vectors object, that
|
|
* is, a path. The resulting file can be edited using a vector graphics
|
|
* application, or later reloaded into PIKA. Pass %NULL as the
|
|
* 'vectors' argument to export all paths in the image.
|
|
*
|
|
* Returns: TRUE on success.
|
|
*
|
|
* Since: 2.6
|
|
**/
|
|
gboolean
|
|
pika_vectors_export_to_file (PikaImage *image,
|
|
GFile *file,
|
|
PikaVectors *vectors)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gboolean success = TRUE;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_IMAGE, image,
|
|
G_TYPE_FILE, file,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-export-to-file",
|
|
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_vectors_export_to_string:
|
|
* @image: The image.
|
|
* @vectors: The vectors object to export, or %NULL for all in the image.
|
|
*
|
|
* Save a path as an SVG string.
|
|
*
|
|
* This procedure works like pika_vectors_export_to_file() but creates
|
|
* a string rather than a file. The string is NULL-terminated and holds
|
|
* a complete XML document. Pass %NULL as the 'vectors' argument to
|
|
* export all paths in the image.
|
|
*
|
|
* Returns: (transfer full):
|
|
* A string whose contents are a complete SVG document.
|
|
* The returned value must be freed with g_free().
|
|
*
|
|
* Since: 2.6
|
|
**/
|
|
gchar *
|
|
pika_vectors_export_to_string (PikaImage *image,
|
|
PikaVectors *vectors)
|
|
{
|
|
PikaValueArray *args;
|
|
PikaValueArray *return_vals;
|
|
gchar *string = NULL;
|
|
|
|
args = pika_value_array_new_from_types (NULL,
|
|
PIKA_TYPE_IMAGE, image,
|
|
PIKA_TYPE_VECTORS, vectors,
|
|
G_TYPE_NONE);
|
|
|
|
return_vals = _pika_pdb_run_procedure_array (pika_get_pdb (),
|
|
"pika-vectors-export-to-string",
|
|
args);
|
|
pika_value_array_unref (args);
|
|
|
|
if (PIKA_VALUES_GET_ENUM (return_vals, 0) == PIKA_PDB_SUCCESS)
|
|
string = PIKA_VALUES_DUP_STRING (return_vals, 1);
|
|
|
|
pika_value_array_unref (return_vals);
|
|
|
|
return string;
|
|
}
|
