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/* cairo - a vector graphics library with display and print output
*
* Copyright © 2002 University of Southern California
* Copyright © 2005 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* The Original Code is the cairo graphics library.
*
* The Initial Developer of the Original Code is University of Southern
* California.
*
* Contributor(s):
* Carl D. Worth <cworth@cworth.org>
*/
#ifndef CAIRO_TYPES_PRIVATE_H
#define CAIRO_TYPES_PRIVATE_H
/* This is the only header file not including cairoint.h. It only contains
* typedefs.*/
#include "cairo.h"
typedef struct _cairo_array cairo_array_t;
typedef struct _cairo_hash_table cairo_hash_table_t;
typedef struct _cairo_cache cairo_cache_t;
typedef struct _cairo_hash_entry cairo_hash_entry_t;
typedef struct _cairo_surface_backend cairo_surface_backend_t;
typedef struct _cairo_clip cairo_clip_t;
typedef struct _cairo_output_stream cairo_output_stream_t;
typedef struct _cairo_scaled_font_subsets cairo_scaled_font_subsets_t;
typedef struct _cairo_paginated_surface_backend cairo_paginated_surface_backend_t;
typedef struct _cairo_scaled_font_backend cairo_scaled_font_backend_t;
typedef struct _cairo_font_face_backend cairo_font_face_backend_t;
typedef struct _cairo_xlib_screen_info cairo_xlib_screen_info_t;
typedef enum _cairo_paginated_mode cairo_paginated_mode_t;
typedef cairo_array_t cairo_user_data_array_t;
/**
* cairo_hash_entry_t:
*
* A #cairo_hash_entry_t contains both a key and a value for
* cairo_hash_table_t. User-derived types for cairo_hash_entry_t must
* be type-compatible with this structure (eg. they must have an
* unsigned long as the first parameter. The easiest way to get this
* is to use:
*
* typedef _my_entry {
* cairo_hash_entry_t base;
* ... Remainder of key and value fields here ..
* } my_entry_t;
*
* which then allows a pointer to my_entry_t to be passed to any of
* the cairo_hash_table functions as follows without requiring a cast:
*
* _cairo_hash_table_insert (hash_table, &my_entry->base);
*
* IMPORTANT: The caller is reponsible for initializing
* my_entry->base.hash with a hash code derived from the key. The
* essential property of the hash code is that keys_equal must never
* return TRUE for two keys that have different hashes. The best hash
* code will reduce the frequency of two keys with the same code for
* which keys_equal returns FALSE.
*
* Which parts of the entry make up the "key" and which part make up
* the value are entirely up to the caller, (as determined by the
* computation going into base.hash as well as the keys_equal
* function). A few of the cairo_hash_table functions accept an entry
* which will be used exclusively as a "key", (indicated by a
* parameter name of key). In these cases, the value-related fields of
* the entry need not be initialized if so desired.
**/
struct _cairo_hash_entry {
unsigned long hash;
};
struct _cairo_array {
unsigned int size;
unsigned int num_elements;
unsigned int element_size;
char **elements;
cairo_bool_t is_snapshot;
};
struct _cairo_font_options {
cairo_antialias_t antialias;
cairo_subpixel_order_t subpixel_order;
cairo_hint_style_t hint_style;
cairo_hint_metrics_t hint_metrics;
};
struct _cairo_cache {
cairo_hash_table_t *hash_table;
cairo_destroy_func_t entry_destroy;
unsigned long max_size;
unsigned long size;
int freeze_count;
};
enum _cairo_paginated_mode {
CAIRO_PAGINATED_MODE_ANALYZE, /* analyze page regions */
CAIRO_PAGINATED_MODE_RENDER /* render page contents */
};
/* Sure wish C had a real enum type so that this would be distinct
from cairo_status_t. Oh well, without that, I'll use this bogus 1000
offset */
typedef enum _cairo_int_status {
CAIRO_INT_STATUS_DEGENERATE = 1000,
CAIRO_INT_STATUS_UNSUPPORTED,
CAIRO_INT_STATUS_NOTHING_TO_DO,
CAIRO_INT_STATUS_CACHE_EMPTY,
CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY,
CAIRO_INT_STATUS_IMAGE_FALLBACK,
CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN,
} cairo_int_status_t;
typedef enum _cairo_internal_surface_type {
CAIRO_INTERNAL_SURFACE_TYPE_META = 0x1000,
CAIRO_INTERNAL_SURFACE_TYPE_PAGINATED,
CAIRO_INTERNAL_SURFACE_TYPE_ANALYSIS,
CAIRO_INTERNAL_SURFACE_TYPE_TEST_META,
CAIRO_INTERNAL_SURFACE_TYPE_TEST_FALLBACK,
CAIRO_INTERNAL_SURFACE_TYPE_TEST_PAGINATED
} cairo_internal_surface_type_t;
#endif /* CAIRO_TYPES_PRIVATE_H */
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