conky/lua/cairo.pkg

$#include <cairo-features.h>
$#include <cairo-deprecated.h>
$#include <cairo.h>
$#include <cairo-xlib.h>
$#include <X11/Xlib.h>
$#include <libcairo-helper.h>
/*
 * This code was mostly copied from cairo.h and cairo-xlib.h with comments
 * removed.  The licence noticed below is present for the sake of clarity.
 */

/* 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>
 */

typedef enum _cairo_antialias {
	CAIRO_ANTIALIAS_DEFAULT,
	CAIRO_ANTIALIAS_NONE,
	CAIRO_ANTIALIAS_GRAY,
	CAIRO_ANTIALIAS_SUBPIXEL
} cairo_antialias_t;

typedef struct _cairo_matrix {
	double xx;
	double yx;
	double xy;
	double yy;
	double x0;
	double y0;
	static tolua_outside cairo_matrix_t* create_cairo_matrix_t @ create();
	static tolua_outside void destroy_cairo_matrix_t @ destroy(cairo_matrix_t *pointer);
} cairo_matrix_t;
typedef int cairo_bool_t;

typedef struct _cairo cairo_t;

typedef struct _cairo_surface cairo_surface_t;

typedef struct _cairo_pattern cairo_pattern_t;


typedef struct _cairo_user_data_key {
	int unused;
} cairo_user_data_key_t;

typedef enum _cairo_status {
	CAIRO_STATUS_SUCCESS = 0,
	CAIRO_STATUS_NO_MEMORY,
	CAIRO_STATUS_INVALID_RESTORE,
	CAIRO_STATUS_INVALID_POP_GROUP,
	CAIRO_STATUS_NO_CURRENT_POINT,
	CAIRO_STATUS_INVALID_MATRIX,
	CAIRO_STATUS_INVALID_STATUS,
	CAIRO_STATUS_NULL_POINTER,
	CAIRO_STATUS_INVALID_STRING,
	CAIRO_STATUS_INVALID_PATH_DATA,
	CAIRO_STATUS_READ_ERROR,
	CAIRO_STATUS_WRITE_ERROR,
	CAIRO_STATUS_SURFACE_FINISHED,
	CAIRO_STATUS_SURFACE_TYPE_MISMATCH,
	CAIRO_STATUS_PATTERN_TYPE_MISMATCH,
	CAIRO_STATUS_INVALID_CONTENT,
	CAIRO_STATUS_INVALID_FORMAT,
	CAIRO_STATUS_INVALID_VISUAL,
	CAIRO_STATUS_FILE_NOT_FOUND,
	CAIRO_STATUS_INVALID_DASH,
	CAIRO_STATUS_INVALID_DSC_COMMENT,
	CAIRO_STATUS_INVALID_INDEX,
	CAIRO_STATUS_CLIP_NOT_REPRESENTABLE,
	CAIRO_STATUS_TEMP_FILE_ERROR,
	CAIRO_STATUS_INVALID_STRIDE,
	CAIRO_STATUS_FONT_TYPE_MISMATCH,
	CAIRO_STATUS_USER_FONT_IMMUTABLE,
	CAIRO_STATUS_USER_FONT_ERROR,
	CAIRO_STATUS_NEGATIVE_COUNT,
	CAIRO_STATUS_INVALID_CLUSTERS,
	CAIRO_STATUS_INVALID_SLANT,
	CAIRO_STATUS_INVALID_WEIGHT
} cairo_status_t;

typedef enum _cairo_content {
	CAIRO_CONTENT_COLOR = 0x1000,
	CAIRO_CONTENT_ALPHA = 0x2000,
	CAIRO_CONTENT_COLOR_ALPHA = 0x3000
} cairo_content_t;

typedef enum _cairo_operator {
	CAIRO_OPERATOR_CLEAR,

	CAIRO_OPERATOR_SOURCE,
	CAIRO_OPERATOR_OVER,
	CAIRO_OPERATOR_IN,
	CAIRO_OPERATOR_OUT,
	CAIRO_OPERATOR_ATOP,

	CAIRO_OPERATOR_DEST,
	CAIRO_OPERATOR_DEST_OVER,
	CAIRO_OPERATOR_DEST_IN,
	CAIRO_OPERATOR_DEST_OUT,
	CAIRO_OPERATOR_DEST_ATOP,

	CAIRO_OPERATOR_XOR,
	CAIRO_OPERATOR_ADD,
	CAIRO_OPERATOR_SATURATE,

	/* blending modes */
	/* source and destination layers are multiplied. This causes the result to be at least as dark as the darker inputs. (Since 1.10) */
	CAIRO_OPERATOR_MULTIPLY,
	/* source and destination are complemented and multiplied. This causes the result to be at least as light as the lighter inputs. (Since 1.10) */
	CAIRO_OPERATOR_SCREEN,
	/* multiplies or screens, depending on the lightness of the destination color. (Since 1.10) */
	CAIRO_OPERATOR_OVERLAY,
	/* replaces the destination with the source if it is darker, otherwise keeps the source. (Since 1.10) */
	CAIRO_OPERATOR_DARKEN,
	/* replaces the destination with the source if it is lighter, otherwise keeps the source. (Since 1.10) */
	CAIRO_OPERATOR_LIGHTEN,
	/* brightens the destination color to reflect the source color. (Since 1.10) */
	CAIRO_OPERATOR_COLOR_DODGE,
	/* darkens the destination color to reflect the source color. (Since 1.10) */
	CAIRO_OPERATOR_COLOR_BURN,
	/* Multiplies or screens, dependent on source color. (Since 1.10) */
	CAIRO_OPERATOR_HARD_LIGHT,
	/* Darkens or lightens, dependent on source color. (Since 1.10) */
	CAIRO_OPERATOR_SOFT_LIGHT,
	/* Takes the difference of the source and destination color. (Since 1.10) */
	CAIRO_OPERATOR_DIFFERENCE,
	/* Produces an effect similar to difference, but with lower contrast. (Since 1.10) */
	CAIRO_OPERATOR_EXCLUSION,
	/* Creates a color with the hue of the source and the saturation and luminosity of the target. (Since 1.10) */
	CAIRO_OPERATOR_HSL_HUE,
	/* Creates a color with the saturation of the source and the hue and luminosity of the target. Painting with this mode onto a gray area produces no change. (Since 1.10) */
	CAIRO_OPERATOR_HSL_SATURATION,
	/* Creates a color with the hue and saturation of the source and the luminosity of the target. This preserves the gray levels of the target and is useful for coloring monochrome images or tinting color images. (Since 1.10) */
	CAIRO_OPERATOR_HSL_COLOR,
	/* Creates a color with the luminosity of the source and the hue and saturation of the target. This produces an inverse effect to CAIRO_OPERATOR_HSL_COLOR. (Since 1.10) */
	CAIRO_OPERATOR_HSL_LUMINOSITY
} cairo_operator_t;

typedef enum _cairo_filter {
	CAIRO_FILTER_FAST,
	CAIRO_FILTER_GOOD,
	CAIRO_FILTER_BEST,
	CAIRO_FILTER_NEAREST,
	CAIRO_FILTER_BILINEAR,
	CAIRO_FILTER_GAUSSIAN
} cairo_filter_t;

cairo_surface_t *cairo_xlib_surface_create(Display * dpy,
		Drawable drawable,
		Visual * visual, int width, int height);

cairo_surface_t *cairo_xlib_surface_create_for_bitmap(Display * dpy,
		Pixmap bitmap,
		Screen * screen, int width, int height);

void cairo_xlib_surface_set_size(cairo_surface_t * surface, int width, int height);

void cairo_xlib_surface_set_drawable(cairo_surface_t * surface, Drawable
		drawable, int width, int height);

Display *cairo_xlib_surface_get_display(cairo_surface_t * surface);

Drawable cairo_xlib_surface_get_drawable(cairo_surface_t * surface);

Screen *cairo_xlib_surface_get_screen(cairo_surface_t * surface);

Visual *cairo_xlib_surface_get_visual(cairo_surface_t * surface);

int cairo_xlib_surface_get_depth(cairo_surface_t * surface);

int cairo_xlib_surface_get_width(cairo_surface_t * surface);

int cairo_xlib_surface_get_height(cairo_surface_t * surface);

int cairo_version(void);

const char *cairo_version_string(void);

cairo_t *cairo_create(cairo_surface_t * target);

cairo_t *cairo_reference(cairo_t * cr);

void cairo_destroy(cairo_t * cr);

unsigned int cairo_get_reference_count(cairo_t * cr);

void *cairo_get_user_data(cairo_t * cr, const cairo_user_data_key_t * key);

cairo_status_t cairo_set_user_data(cairo_t * cr, const cairo_user_data_key_t *
		key, void *user_data, cairo_destroy_func_t destroy);

void cairo_save(cairo_t * cr);

void cairo_restore(cairo_t * cr);

void cairo_push_group(cairo_t * cr);

void cairo_push_group_with_content(cairo_t * cr, cairo_content_t content);

cairo_pattern_t *cairo_pop_group(cairo_t * cr);

void cairo_pop_group_to_source(cairo_t * cr);

void cairo_set_operator(cairo_t * cr, cairo_operator_t op);

void cairo_set_source(cairo_t * cr, cairo_pattern_t * source);

void cairo_set_source_rgb(cairo_t * cr, double red, double green, double blue);

void cairo_set_source_rgba(cairo_t * cr, double red, double green, double blue, double alpha);

void cairo_set_source_surface(cairo_t * cr, cairo_surface_t * surface, double x, double y);

void cairo_set_tolerance(cairo_t * cr, double tolerance);

void cairo_set_antialias(cairo_t * cr, cairo_antialias_t antialias);

typedef enum _cairo_fill_rule {
	CAIRO_FILL_RULE_WINDING,
	CAIRO_FILL_RULE_EVEN_ODD
} cairo_fill_rule_t;

void cairo_set_fill_rule(cairo_t * cr, cairo_fill_rule_t fill_rule);

void cairo_set_line_width(cairo_t * cr, double width);

typedef enum _cairo_line_cap {
	CAIRO_LINE_CAP_BUTT,
	CAIRO_LINE_CAP_ROUND,
	CAIRO_LINE_CAP_SQUARE
} cairo_line_cap_t;

void cairo_set_line_cap(cairo_t * cr, cairo_line_cap_t line_cap);

typedef enum _cairo_line_join {
	CAIRO_LINE_JOIN_MITER,
	CAIRO_LINE_JOIN_ROUND,
	CAIRO_LINE_JOIN_BEVEL
} cairo_line_join_t;

void cairo_set_line_join(cairo_t * cr, cairo_line_join_t line_join);

void cairo_set_dash(cairo_t * cr, const double dashes[num_dashes], int num_dashes, double offset);

void cairo_set_miter_limit(cairo_t * cr, double limit);

void cairo_translate(cairo_t * cr, double tx, double ty);

void cairo_scale(cairo_t * cr, double sx, double sy);

void cairo_rotate(cairo_t * cr, double angle);

void cairo_transform(cairo_t * cr, cairo_matrix_t * matrix);

void cairo_set_matrix(cairo_t * cr, cairo_matrix_t * matrix);

void cairo_identity_matrix(cairo_t * cr);

void cairo_user_to_device(cairo_t * cr, double *x, double *y);

void cairo_user_to_device_distance(cairo_t * cr, double *dx, double *dy);

void cairo_device_to_user(cairo_t * cr, double *x, double *y);

void cairo_device_to_user_distance(cairo_t * cr, double *dx, double *dy);

void cairo_new_path(cairo_t * cr);

void cairo_move_to(cairo_t * cr, double x, double y);

void cairo_new_sub_path(cairo_t * cr);

void cairo_line_to(cairo_t * cr, double x, double y);

void cairo_curve_to(cairo_t * cr, double x1, double y1, double x2, double y2, double x3, double y3);

void cairo_arc(cairo_t * cr, double xc, double yc, double radius, double angle1, double angle2);

void cairo_arc_negative(cairo_t * cr, double xc, double yc, double radius,
		double angle1, double angle2);

void cairo_rel_move_to(cairo_t * cr, double dx, double dy);

void cairo_rel_line_to(cairo_t * cr, double dx, double dy);

void cairo_rel_curve_to(cairo_t * cr, double dx1, double dy1, double dx2,
		double dy2, double dx3, double dy3);

void cairo_rectangle(cairo_t * cr, double x, double y, double width, double height);

void cairo_close_path(cairo_t * cr);

void cairo_path_extents(cairo_t * cr, double *x1, double *y1, double *x2, double *y2);

void cairo_paint(cairo_t * cr);

void cairo_paint_with_alpha(cairo_t * cr, double alpha);

void cairo_mask(cairo_t * cr, cairo_pattern_t * pattern);

void cairo_mask_surface(cairo_t * cr, cairo_surface_t * surface, double
		surface_x, double surface_y);

void cairo_stroke(cairo_t * cr);

void cairo_stroke_preserve(cairo_t * cr);

void cairo_fill(cairo_t * cr);

void cairo_fill_preserve(cairo_t * cr);

void cairo_copy_page(cairo_t * cr);

void cairo_show_page(cairo_t * cr);

cairo_bool_t cairo_in_stroke(cairo_t * cr, double x, double y);

cairo_bool_t cairo_in_fill(cairo_t * cr, double x, double y);

void cairo_stroke_extents(cairo_t * cr, double *x1, double *y1, double *x2, double *y2);

void cairo_fill_extents(cairo_t * cr, double *x1, double *y1, double *x2, double *y2);

void cairo_reset_clip(cairo_t * cr);

void cairo_clip(cairo_t * cr);

void cairo_clip_preserve(cairo_t * cr);

void cairo_clip_extents(cairo_t * cr, double *x1, double *y1, double *x2, double *y2);

typedef struct _cairo_rectangle {
	double x, y, width, height;
} cairo_rectangle_t;

typedef struct _cairo_rectangle_list {
	cairo_status_t status;
	cairo_rectangle_t *rectangles;
	int num_rectangles;
} cairo_rectangle_list_t;

cairo_rectangle_list_t *cairo_copy_clip_rectangle_list(cairo_t * cr);

void cairo_rectangle_list_destroy(cairo_rectangle_list_t * rectangle_list);

typedef struct _cairo_scaled_font cairo_scaled_font_t;

typedef struct _cairo_font_face cairo_font_face_t;

typedef struct {
	unsigned long index;
	double x;
	double y;
} cairo_glyph_t;

cairo_glyph_t *cairo_glyph_allocate(int num_glyphs);

void cairo_glyph_free(cairo_glyph_t * glyphs);

typedef struct {
	int num_bytes;
	int num_glyphs;
} cairo_text_cluster_t;

cairo_text_cluster_t *cairo_text_cluster_allocate(int num_clusters);

void cairo_text_cluster_free(cairo_text_cluster_t * clusters);

typedef enum _cairo_text_cluster_flags {
	CAIRO_TEXT_CLUSTER_FLAG_BACKWARD = 0x00000001
} cairo_text_cluster_flags_t;

typedef struct {
	double x_bearing;
	double y_bearing;
	double width;
	double height;
	double x_advance;
	double y_advance;
	static tolua_outside cairo_text_extents_t* create_cairo_text_extents_t @ create();
	static tolua_outside void destroy_cairo_text_extents_t @ destroy(cairo_text_extents_t *pointer);
} cairo_text_extents_t;

typedef struct {
	double ascent;
	double descent;
	double height;
	double max_x_advance;
	double max_y_advance;
	static tolua_outside cairo_font_extents_t* create_cairo_font_extents_t @ create();
	static tolua_outside void destroy_cairo_font_extents_t @ destroy(cairo_font_extents_t *pointer);
} cairo_font_extents_t;

typedef enum _cairo_font_slant {
	CAIRO_FONT_SLANT_NORMAL,
	CAIRO_FONT_SLANT_ITALIC,
	CAIRO_FONT_SLANT_OBLIQUE
} cairo_font_slant_t;

typedef enum _cairo_font_weight {
	CAIRO_FONT_WEIGHT_NORMAL,
	CAIRO_FONT_WEIGHT_BOLD
} cairo_font_weight_t;

typedef enum _cairo_subpixel_order {
	CAIRO_SUBPIXEL_ORDER_DEFAULT,
	CAIRO_SUBPIXEL_ORDER_RGB,
	CAIRO_SUBPIXEL_ORDER_BGR,
	CAIRO_SUBPIXEL_ORDER_VRGB,
	CAIRO_SUBPIXEL_ORDER_VBGR
} cairo_subpixel_order_t;

typedef enum _cairo_hint_style {
	CAIRO_HINT_STYLE_DEFAULT,
	CAIRO_HINT_STYLE_NONE,
	CAIRO_HINT_STYLE_SLIGHT,
	CAIRO_HINT_STYLE_MEDIUM,
	CAIRO_HINT_STYLE_FULL
} cairo_hint_style_t;

typedef enum _cairo_hint_metrics {
	CAIRO_HINT_METRICS_DEFAULT,
	CAIRO_HINT_METRICS_OFF,
	CAIRO_HINT_METRICS_ON
} cairo_hint_metrics_t;

typedef struct _cairo_font_options cairo_font_options_t;

cairo_font_options_t *cairo_font_options_create(void);

cairo_font_options_t *cairo_font_options_copy(cairo_font_options_t * original);

void cairo_font_options_destroy(cairo_font_options_t * options);

cairo_status_t cairo_font_options_status(cairo_font_options_t * options);

void cairo_font_options_merge(cairo_font_options_t * options, cairo_font_options_t * other);

cairo_bool_t cairo_font_options_equal(cairo_font_options_t * options,
		cairo_font_options_t * other);

unsigned long cairo_font_options_hash(cairo_font_options_t * options);

void cairo_font_options_set_antialias(cairo_font_options_t * options, cairo_antialias_t antialias);
cairo_antialias_t cairo_font_options_get_antialias(cairo_font_options_t * options);

void cairo_font_options_set_subpixel_order(cairo_font_options_t * options,
		cairo_subpixel_order_t subpixel_order);
cairo_subpixel_order_t cairo_font_options_get_subpixel_order(cairo_font_options_t * options);

void cairo_font_options_set_hint_style(cairo_font_options_t * options, cairo_hint_style_t hint_style);
cairo_hint_style_t cairo_font_options_get_hint_style(cairo_font_options_t * options);

void cairo_font_options_set_hint_metrics(cairo_font_options_t * options,
		cairo_hint_metrics_t hint_metrics);
cairo_hint_metrics_t cairo_font_options_get_hint_metrics(cairo_font_options_t * options);

void cairo_select_font_face(cairo_t * cr,
		const char *family, cairo_font_slant_t slant, cairo_font_weight_t weight);

void cairo_set_font_size(cairo_t * cr, double size);

void cairo_set_font_matrix(cairo_t * cr, cairo_matrix_t * matrix);

void cairo_get_font_matrix(cairo_t * cr, cairo_matrix_t * matrix);

void cairo_set_font_options(cairo_t * cr, cairo_font_options_t * options);

void cairo_get_font_options(cairo_t * cr, cairo_font_options_t * options);

void cairo_set_font_face(cairo_t * cr, cairo_font_face_t * font_face);

cairo_font_face_t *cairo_get_font_face(cairo_t * cr);

void cairo_set_scaled_font(cairo_t * cr, cairo_scaled_font_t * scaled_font);

cairo_scaled_font_t *cairo_get_scaled_font(cairo_t * cr);

void cairo_show_text(cairo_t * cr, const char *utf8);

void cairo_show_glyphs(cairo_t * cr, const cairo_glyph_t * glyphs, int num_glyphs);

void cairo_show_text_glyphs(cairo_t * cr,
		const char *utf8,
		int utf8_len,
		const cairo_glyph_t * glyphs,
		int num_glyphs,
		const cairo_text_cluster_t * clusters,
		int num_clusters, cairo_text_cluster_flags_t cluster_flags);

void cairo_text_path(cairo_t * cr, const char *utf8);

void cairo_glyph_path(cairo_t * cr, const cairo_glyph_t * glyphs, int num_glyphs);

void cairo_text_extents(cairo_t * cr, const char *utf8, cairo_text_extents_t * extents);

void cairo_glyph_extents(cairo_t * cr,
		const cairo_glyph_t * glyphs, int num_glyphs, cairo_text_extents_t * extents);

void cairo_font_extents(cairo_t * cr, cairo_font_extents_t * extents);

cairo_font_face_t *cairo_font_face_reference(cairo_font_face_t * font_face);

void cairo_font_face_destroy(cairo_font_face_t * font_face);

unsigned int cairo_font_face_get_reference_count(cairo_font_face_t * font_face);

cairo_status_t cairo_font_face_status(cairo_font_face_t * font_face);

typedef enum _cairo_font_type {
	CAIRO_FONT_TYPE_TOY,
	CAIRO_FONT_TYPE_FT,
	CAIRO_FONT_TYPE_WIN32,
	CAIRO_FONT_TYPE_QUARTZ,
	CAIRO_FONT_TYPE_USER
} cairo_font_type_t;

cairo_font_type_t cairo_font_face_get_type(cairo_font_face_t * font_face);

void *cairo_font_face_get_user_data(cairo_font_face_t * font_face,
		const cairo_user_data_key_t * key);

cairo_status_t cairo_font_face_set_user_data(cairo_font_face_t * font_face,
		const cairo_user_data_key_t * key,
		void *user_data, cairo_destroy_func_t destroy);

cairo_scaled_font_t *cairo_scaled_font_create(cairo_font_face_t * font_face,
		cairo_matrix_t * font_matrix,
		cairo_matrix_t * ctm,
		cairo_font_options_t * options);

cairo_scaled_font_t *cairo_scaled_font_reference(cairo_scaled_font_t * scaled_font);

void cairo_scaled_font_destroy(cairo_scaled_font_t * scaled_font);

unsigned int cairo_scaled_font_get_reference_count(cairo_scaled_font_t * scaled_font);

cairo_status_t cairo_scaled_font_status(cairo_scaled_font_t * scaled_font);

cairo_font_type_t cairo_scaled_font_get_type(cairo_scaled_font_t * scaled_font);

void *cairo_scaled_font_get_user_data(cairo_scaled_font_t * scaled_font,
		const cairo_user_data_key_t * key);

cairo_status_t cairo_scaled_font_set_user_data(cairo_scaled_font_t * scaled_font,
		const cairo_user_data_key_t * key,
		void *user_data, cairo_destroy_func_t destroy);

void cairo_scaled_font_extents(cairo_scaled_font_t * scaled_font, cairo_font_extents_t * extents);

void cairo_scaled_font_text_extents(cairo_scaled_font_t * scaled_font,
		const char *utf8, cairo_text_extents_t * extents);

void cairo_scaled_font_glyph_extents(cairo_scaled_font_t * scaled_font,
		const cairo_glyph_t * glyphs,
		int num_glyphs, cairo_text_extents_t * extents);

cairo_status_t cairo_scaled_font_text_to_glyphs(cairo_scaled_font_t * scaled_font,
		double x,
		double y,
		const char *utf8,
		int utf8_len,
		cairo_glyph_t ** glyphs,
		int *num_glyphs,
		cairo_text_cluster_t ** clusters,
		int *num_clusters, cairo_text_cluster_flags_t * cluster_flags);

cairo_font_face_t *cairo_scaled_font_get_font_face(cairo_scaled_font_t * scaled_font);

void cairo_scaled_font_get_font_matrix(cairo_scaled_font_t * scaled_font, cairo_matrix_t * font_matrix);

void cairo_scaled_font_get_ctm(cairo_scaled_font_t * scaled_font, cairo_matrix_t * ctm);

void cairo_scaled_font_get_scale_matrix(cairo_scaled_font_t * scaled_font,
		cairo_matrix_t * scale_matrix);

void cairo_scaled_font_get_font_options(cairo_scaled_font_t * scaled_font,
		cairo_font_options_t * options);

cairo_font_face_t *cairo_toy_font_face_create(const char *family,
		cairo_font_slant_t slant, cairo_font_weight_t weight);

const char *cairo_toy_font_face_get_family(cairo_font_face_t * font_face);

cairo_font_slant_t cairo_toy_font_face_get_slant(cairo_font_face_t * font_face);

cairo_font_weight_t cairo_toy_font_face_get_weight(cairo_font_face_t * font_face);

cairo_font_face_t *cairo_user_font_face_create(void);

void cairo_user_font_face_set_init_func(cairo_font_face_t * font_face,
		cairo_user_scaled_font_init_func_t init_func);

void cairo_user_font_face_set_render_glyph_func(cairo_font_face_t * font_face,
		cairo_user_scaled_font_render_glyph_func_t
		render_glyph_func);

void cairo_user_font_face_set_text_to_glyphs_func(cairo_font_face_t * font_face,
		cairo_user_scaled_font_text_to_glyphs_func_t
		text_to_glyphs_func);

void cairo_user_font_face_set_unicode_to_glyph_func(cairo_font_face_t * font_face,
		cairo_user_scaled_font_unicode_to_glyph_func_t
		unicode_to_glyph_func);

cairo_user_scaled_font_init_func_t cairo_user_font_face_get_init_func(cairo_font_face_t * font_face);

cairo_user_scaled_font_render_glyph_func_t cairo_user_font_face_get_render_glyph_func(cairo_font_face_t * font_face);

cairo_user_scaled_font_text_to_glyphs_func_t cairo_user_font_face_get_text_to_glyphs_func(cairo_font_face_t * font_face);

cairo_user_scaled_font_unicode_to_glyph_func_t cairo_user_font_face_get_unicode_to_glyph_func(cairo_font_face_t * font_face);

cairo_operator_t cairo_get_operator(cairo_t * cr);

cairo_pattern_t *cairo_get_source(cairo_t * cr);

double cairo_get_tolerance(cairo_t * cr);

cairo_antialias_t cairo_get_antialias(cairo_t * cr);

cairo_bool_t cairo_has_current_point(cairo_t * cr);

void cairo_get_current_point(cairo_t * cr, double *x, double *y);

cairo_fill_rule_t cairo_get_fill_rule(cairo_t * cr);

double cairo_get_line_width(cairo_t * cr);

cairo_line_cap_t cairo_get_line_cap(cairo_t * cr);

cairo_line_join_t cairo_get_line_join(cairo_t * cr);

double cairo_get_miter_limit(cairo_t * cr);

int cairo_get_dash_count(cairo_t * cr);

void cairo_get_dash(cairo_t * cr, double *dashes, double *offset);

void cairo_get_matrix(cairo_t * cr, cairo_matrix_t * matrix);

cairo_surface_t *cairo_get_target(cairo_t * cr);

cairo_surface_t *cairo_get_group_target(cairo_t * cr);

typedef enum _cairo_path_data_type {
	CAIRO_PATH_MOVE_TO,
	CAIRO_PATH_LINE_TO,
	CAIRO_PATH_CURVE_TO,
	CAIRO_PATH_CLOSE_PATH
} cairo_path_data_type_t;

typedef union _cairo_path_data_t cairo_path_data_t;

typedef struct cairo_path {
	cairo_status_t status;
	cairo_path_data_t *data;
	int num_data;
} cairo_path_t;

cairo_path_t *cairo_copy_path(cairo_t * cr);

cairo_path_t *cairo_copy_path_flat(cairo_t * cr);

void cairo_append_path(cairo_t * cr, const cairo_path_t * path);

void cairo_path_destroy(cairo_path_t * path);

cairo_status_t cairo_status(cairo_t * cr);

const char *cairo_status_to_string(cairo_status_t status);

cairo_surface_t *cairo_surface_create_similar(cairo_surface_t * other,
		cairo_content_t content, int width, int height);

cairo_surface_t *cairo_surface_create_for_rectangle (cairo_surface_t	*target,
		double x,
		double y,
		double width,
		double height);

cairo_surface_t *cairo_surface_reference(cairo_surface_t * surface);

void cairo_surface_finish(cairo_surface_t * surface);

void cairo_surface_destroy(cairo_surface_t * surface);

unsigned int cairo_surface_get_reference_count(cairo_surface_t * surface);

cairo_status_t cairo_surface_status(cairo_surface_t * surface);

typedef enum _cairo_surface_type {
	CAIRO_SURFACE_TYPE_IMAGE,
	CAIRO_SURFACE_TYPE_PDF,
	CAIRO_SURFACE_TYPE_PS,
	CAIRO_SURFACE_TYPE_XLIB,
	CAIRO_SURFACE_TYPE_XCB,
	CAIRO_SURFACE_TYPE_GLITZ,
	CAIRO_SURFACE_TYPE_QUARTZ,
	CAIRO_SURFACE_TYPE_WIN32,
	CAIRO_SURFACE_TYPE_BEOS,
	CAIRO_SURFACE_TYPE_DIRECTFB,
	CAIRO_SURFACE_TYPE_SVG,
	CAIRO_SURFACE_TYPE_OS2,
	CAIRO_SURFACE_TYPE_WIN32_PRINTING,
	CAIRO_SURFACE_TYPE_QUARTZ_IMAGE
} cairo_surface_type_t;

cairo_surface_type_t cairo_surface_get_type(cairo_surface_t * surface);

cairo_content_t cairo_surface_get_content(cairo_surface_t * surface);


cairo_status_t cairo_surface_write_to_png(cairo_surface_t * surface, const char *filename);

cairo_status_t cairo_surface_write_to_png_stream(cairo_surface_t * surface,
		cairo_write_func_t write_func, void *closure);

void *cairo_surface_get_user_data(cairo_surface_t * surface, const cairo_user_data_key_t * key);

cairo_status_t cairo_surface_set_user_data(cairo_surface_t * surface,
		const cairo_user_data_key_t * key,
		void *user_data, cairo_destroy_func_t destroy);

void cairo_surface_get_font_options(cairo_surface_t * surface, cairo_font_options_t * options);

void cairo_surface_flush(cairo_surface_t * surface);

void cairo_surface_mark_dirty(cairo_surface_t * surface);

void cairo_surface_mark_dirty_rectangle(cairo_surface_t * surface, int x, int y, int width, int height);

void cairo_surface_set_device_offset(cairo_surface_t * surface, double x_offset, double y_offset);

void cairo_surface_get_device_offset(cairo_surface_t * surface, double *x_offset, double *y_offset);

void cairo_surface_set_fallback_resolution(cairo_surface_t * surface,
		double x_pixels_per_inch, double y_pixels_per_inch);

void cairo_surface_get_fallback_resolution(cairo_surface_t * surface,
		double *x_pixels_per_inch, double *y_pixels_per_inch);

void cairo_surface_copy_page(cairo_surface_t * surface);

void cairo_surface_show_page(cairo_surface_t * surface);

cairo_bool_t cairo_surface_has_show_text_glyphs(cairo_surface_t * surface);

typedef enum _cairo_format {
	CAIRO_FORMAT_ARGB32,
	CAIRO_FORMAT_RGB24,
	CAIRO_FORMAT_A8,
	CAIRO_FORMAT_A1
} cairo_format_t;

cairo_surface_t *cairo_image_surface_create(cairo_format_t format, int width, int height);

int cairo_format_stride_for_width(cairo_format_t format, int width);

cairo_surface_t *cairo_image_surface_create_for_data(unsigned char *data,
		cairo_format_t format,
		int width, int height, int stride);

unsigned char *cairo_image_surface_get_data(cairo_surface_t * surface);

cairo_format_t cairo_image_surface_get_format(cairo_surface_t * surface);

int cairo_image_surface_get_width(cairo_surface_t * surface);

int cairo_image_surface_get_height(cairo_surface_t * surface);

int cairo_image_surface_get_stride(cairo_surface_t * surface);


cairo_surface_t *cairo_image_surface_create_from_png(const char *filename);

cairo_surface_t *cairo_image_surface_create_from_png_stream(cairo_read_func_t read_func,
		void *closure);

cairo_pattern_t *cairo_pattern_create_rgb(double red, double green, double blue);

cairo_pattern_t *cairo_pattern_create_rgba(double red, double green, double blue, double alpha);

cairo_pattern_t *cairo_pattern_create_for_surface(cairo_surface_t * surface);

cairo_pattern_t *cairo_pattern_create_linear(double x0, double y0, double x1, double y1);

cairo_pattern_t *cairo_pattern_create_radial(double cx0, double cy0, double radius0,
		double cx1, double cy1, double radius1);

cairo_pattern_t *cairo_pattern_reference(cairo_pattern_t * pattern);

void cairo_pattern_destroy(cairo_pattern_t * pattern);

unsigned int cairo_pattern_get_reference_count(cairo_pattern_t * pattern);

cairo_status_t cairo_pattern_status(cairo_pattern_t * pattern);

void *cairo_pattern_get_user_data(cairo_pattern_t * pattern, const cairo_user_data_key_t * key);

cairo_status_t cairo_pattern_set_user_data(cairo_pattern_t * pattern,
		const cairo_user_data_key_t * key,
		void *user_data, cairo_destroy_func_t destroy);

typedef enum _cairo_pattern_type {
	CAIRO_PATTERN_TYPE_SOLID,
	CAIRO_PATTERN_TYPE_SURFACE,
	CAIRO_PATTERN_TYPE_LINEAR,
	CAIRO_PATTERN_TYPE_RADIAL
} cairo_pattern_type_t;

cairo_pattern_type_t cairo_pattern_get_type(cairo_pattern_t * pattern);

void cairo_pattern_add_color_stop_rgb(cairo_pattern_t * pattern, double offset,
		double red, double green, double blue);

void cairo_pattern_add_color_stop_rgba(cairo_pattern_t * pattern, double
		offset, double red, double green, double blue, double alpha);

void cairo_pattern_set_matrix(cairo_pattern_t * pattern, cairo_matrix_t * matrix);

void cairo_pattern_get_matrix(cairo_pattern_t * pattern, cairo_matrix_t * matrix);

typedef enum _cairo_extend {
	CAIRO_EXTEND_NONE,
	CAIRO_EXTEND_REPEAT,
	CAIRO_EXTEND_REFLECT,
	CAIRO_EXTEND_PAD
} cairo_extend_t;

void cairo_pattern_set_extend(cairo_pattern_t * pattern, cairo_extend_t extend);

cairo_extend_t cairo_pattern_get_extend(cairo_pattern_t * pattern);

void cairo_pattern_set_filter(cairo_pattern_t * pattern, cairo_filter_t filter);

cairo_filter_t cairo_pattern_get_filter(cairo_pattern_t * pattern);

cairo_status_t cairo_pattern_get_rgba(cairo_pattern_t * pattern,
		double *red, double *green, double *blue, double *alpha);

cairo_status_t cairo_pattern_get_surface(cairo_pattern_t * pattern, cairo_surface_t ** surface);

cairo_status_t cairo_pattern_get_color_stop_rgba(cairo_pattern_t * pattern,
		int index, double *offset,
		double *red, double *green, double *blue, double *alpha);

cairo_status_t cairo_pattern_get_color_stop_count(cairo_pattern_t * pattern, int *count);

cairo_status_t cairo_pattern_get_linear_points(cairo_pattern_t * pattern,
		double *x0, double *y0, double *x1, double *y1);

cairo_status_t cairo_pattern_get_radial_circles(cairo_pattern_t * pattern,
		double *x0, double *y0, double *r0,
		double *x1, double *y1, double *r1);

void cairo_matrix_init(cairo_matrix_t * matrix, double xx, double yx, double
		xy, double yy, double x0, double y0);

void cairo_matrix_init_identity(cairo_matrix_t * matrix);

void cairo_matrix_init_translate(cairo_matrix_t * matrix, double tx, double ty);

void cairo_matrix_init_scale(cairo_matrix_t * matrix, double sx, double sy);

void cairo_matrix_init_rotate(cairo_matrix_t * matrix, double radians);

void cairo_matrix_translate(cairo_matrix_t * matrix, double tx, double ty);

void cairo_matrix_scale(cairo_matrix_t * matrix, double sx, double sy);

void cairo_matrix_rotate(cairo_matrix_t * matrix, double radians);

cairo_status_t cairo_matrix_invert(cairo_matrix_t * matrix);

void cairo_matrix_multiply(cairo_matrix_t * result, cairo_matrix_t * a,
		cairo_matrix_t * b);

void cairo_matrix_transform_distance(cairo_matrix_t * matrix, double *dx, double *dy);

void cairo_matrix_transform_point(cairo_matrix_t * matrix, double *x, double *y);

void cairo_debug_reset_static_data(void);

void cairo_surface_set_device_scale (cairo_surface_t *surface,
                                double x_scale,
                                double y_scale);
void cairo_surface_get_device_scale (cairo_surface_t *surface,
                                double *x_scale,
                                double *y_scale);