292 lines
9.0 KiB
C
292 lines
9.0 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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* pikaimagetransform_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: pikaimagetransform
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* @title: pikaimagetransform
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* @short_description: Transformations on images.
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*
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* Operations to scale, resize, crop, flip and rotate images.
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**/
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/**
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* pika_image_resize:
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* @image: The image.
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* @new_width: New image width.
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* @new_height: New image height.
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* @offx: x offset between upper left corner of old and new images: (new - old).
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* @offy: y offset between upper left corner of old and new images: (new - old).
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*
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* Resize the image to the specified extents.
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*
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* This procedure resizes the image so that it's new width and height
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* are equal to the supplied parameters. Offsets are also provided
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* which describe the position of the previous image's content. All
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* channels within the image are resized according to the specified
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* parameters; this includes the image selection mask. All layers
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* within the image are repositioned according to the specified
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* offsets.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_image_resize (PikaImage *image,
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gint new_width,
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gint new_height,
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gint offx,
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gint offy)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_INT, new_width,
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G_TYPE_INT, new_height,
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G_TYPE_INT, offx,
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G_TYPE_INT, offy,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-image-resize",
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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_image_resize_to_layers:
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* @image: The image.
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*
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* Resize the image to fit all layers.
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*
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* This procedure resizes the image to the bounding box of all layers
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* of the image. All channels within the image are resized to the new
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* size; this includes the image selection mask. All layers within the
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* image are repositioned to the new image area.
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*
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* Returns: TRUE on success.
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*
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* Since: 2.2
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**/
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gboolean
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pika_image_resize_to_layers (PikaImage *image)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-image-resize-to-layers",
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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_image_scale:
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* @image: The image.
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* @new_width: New image width.
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* @new_height: New image height.
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*
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* Scale the image using the default interpolation method.
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*
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* This procedure scales the image so that its new width and height are
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* equal to the supplied parameters. All layers and channels within the
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* image are scaled according to the specified parameters; this
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* includes the image selection mask. The interpolation method used can
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* be set with pika_context_set_interpolation().
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_image_scale (PikaImage *image,
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gint new_width,
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gint new_height)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_INT, new_width,
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G_TYPE_INT, new_height,
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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-image-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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}
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/**
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* pika_image_crop:
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* @image: The image.
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* @new_width: New image width: (0 < new_width <= width).
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* @new_height: New image height: (0 < new_height <= height).
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* @offx: X offset: (0 <= offx <= (width - new_width)).
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* @offy: Y offset: (0 <= offy <= (height - new_height)).
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*
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* Crop the image to the specified extents.
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*
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* This procedure crops the image so that it's new width and height are
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* equal to the supplied parameters. Offsets are also provided which
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* describe the position of the previous image's content. All channels
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* and layers within the image are cropped to the new image extents;
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* this includes the image selection mask. If any parameters are out of
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* range, an error is returned.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_image_crop (PikaImage *image,
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gint new_width,
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gint new_height,
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gint offx,
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gint offy)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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G_TYPE_INT, new_width,
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G_TYPE_INT, new_height,
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G_TYPE_INT, offx,
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G_TYPE_INT, offy,
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G_TYPE_NONE);
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return_vals = pika_pdb_run_procedure_array (pika_get_pdb (),
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"pika-image-crop",
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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_image_flip:
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* @image: The image.
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* @flip_type: Type of flip.
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*
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* Flips the image horizontally or vertically.
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*
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* This procedure flips (mirrors) the image.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_image_flip (PikaImage *image,
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PikaOrientationType flip_type)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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PIKA_TYPE_ORIENTATION_TYPE, flip_type,
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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-image-flip",
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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_image_rotate:
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* @image: The image.
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* @rotate_type: Angle of rotation.
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*
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* Rotates the image by the specified degrees.
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*
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* This procedure rotates the image.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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pika_image_rotate (PikaImage *image,
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PikaRotationType rotate_type)
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{
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PikaValueArray *args;
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PikaValueArray *return_vals;
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gboolean success = TRUE;
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args = pika_value_array_new_from_types (NULL,
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PIKA_TYPE_IMAGE, image,
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PIKA_TYPE_ROTATION_TYPE, rotate_type,
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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-image-rotate",
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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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