--result of `cpp cairo.h` from cairo 1.12.3 (native extensions in separate files) require'ffi'.cdef[[ int cairo_version (void); const char* cairo_version_string (void); typedef int cairo_bool_t; typedef struct _cairo cairo_t; typedef struct _cairo_surface cairo_surface_t; typedef struct _cairo_device cairo_device_t; typedef struct _cairo_matrix { double xx; double yx; double xy; double yy; double x0; double y0; } cairo_matrix_t; typedef struct _cairo_pattern cairo_pattern_t; typedef void (*cairo_destroy_func_t) (void *data); 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_INVALID_SIZE, CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED, CAIRO_STATUS_DEVICE_TYPE_MISMATCH, CAIRO_STATUS_DEVICE_ERROR, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION, CAIRO_STATUS_DEVICE_FINISHED, CAIRO_STATUS_LAST_STATUS } 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_format { CAIRO_FORMAT_INVALID = -1, CAIRO_FORMAT_ARGB32 = 0, CAIRO_FORMAT_RGB24 = 1, CAIRO_FORMAT_A8 = 2, CAIRO_FORMAT_A1 = 3, CAIRO_FORMAT_RGB16_565 = 4, CAIRO_FORMAT_RGB30 = 5 } cairo_format_t; typedef cairo_status_t (*cairo_write_func_t) (void *closure, const void *data, unsigned int length); typedef cairo_status_t (*cairo_read_func_t) (void *closure, void *data, unsigned int length); typedef struct _cairo_rectangle_int { int x, y; int width, height; } cairo_rectangle_int_t; 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); 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, CAIRO_OPERATOR_MULTIPLY, CAIRO_OPERATOR_SCREEN, CAIRO_OPERATOR_OVERLAY, CAIRO_OPERATOR_DARKEN, CAIRO_OPERATOR_LIGHTEN, CAIRO_OPERATOR_COLOR_DODGE, CAIRO_OPERATOR_COLOR_BURN, CAIRO_OPERATOR_HARD_LIGHT, CAIRO_OPERATOR_SOFT_LIGHT, CAIRO_OPERATOR_DIFFERENCE, CAIRO_OPERATOR_EXCLUSION, CAIRO_OPERATOR_HSL_HUE, CAIRO_OPERATOR_HSL_SATURATION, CAIRO_OPERATOR_HSL_COLOR, CAIRO_OPERATOR_HSL_LUMINOSITY } cairo_operator_t; 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); typedef enum _cairo_antialias { CAIRO_ANTIALIAS_DEFAULT, CAIRO_ANTIALIAS_NONE, CAIRO_ANTIALIAS_GRAY, CAIRO_ANTIALIAS_SUBPIXEL, CAIRO_ANTIALIAS_FAST, CAIRO_ANTIALIAS_GOOD, CAIRO_ANTIALIAS_BEST } cairo_antialias_t; 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, 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, const cairo_matrix_t *matrix); void cairo_set_matrix (cairo_t *cr, const 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); cairo_bool_t cairo_in_clip (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; } cairo_text_extents_t; typedef struct { double ascent; double descent; double height; double max_x_advance; double max_y_advance; } 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 (const 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, const cairo_font_options_t *other); cairo_bool_t cairo_font_options_equal (const cairo_font_options_t *options, const cairo_font_options_t *other); unsigned long cairo_font_options_hash (const 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 (const 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 (const 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 (const 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 (const 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, const cairo_matrix_t *matrix); void cairo_get_font_matrix (cairo_t *cr, cairo_matrix_t *matrix); void cairo_set_font_options (cairo_t *cr, const 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, const 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, const cairo_matrix_t *font_matrix, const cairo_matrix_t *ctm, const 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); typedef cairo_status_t (*cairo_user_scaled_font_init_func_t) (cairo_scaled_font_t *scaled_font, cairo_t *cr, cairo_font_extents_t *extents); typedef cairo_status_t (*cairo_user_scaled_font_render_glyph_func_t) (cairo_scaled_font_t *scaled_font, unsigned long glyph, cairo_t *cr, cairo_text_extents_t *extents); typedef cairo_status_t (*cairo_user_scaled_font_text_to_glyphs_func_t) (cairo_scaled_font_t *scaled_font, 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); typedef cairo_status_t (*cairo_user_scaled_font_unicode_to_glyph_func_t) (cairo_scaled_font_t *scaled_font, unsigned long unicode, unsigned long *glyph_index); 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; union _cairo_path_data_t { struct { cairo_path_data_type_t type; int length; } header; struct { double x, y; } point; }; 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_device_t * cairo_device_reference (cairo_device_t *device); typedef enum _cairo_device_type { CAIRO_DEVICE_TYPE_DRM, CAIRO_DEVICE_TYPE_GL, CAIRO_DEVICE_TYPE_SCRIPT, CAIRO_DEVICE_TYPE_XCB, CAIRO_DEVICE_TYPE_XLIB, CAIRO_DEVICE_TYPE_XML, CAIRO_DEVICE_TYPE_COGL, CAIRO_DEVICE_TYPE_WIN32, CAIRO_DEVICE_TYPE_INVALID = -1 } cairo_device_type_t; cairo_device_type_t cairo_device_get_type (cairo_device_t *device); cairo_status_t cairo_device_status (cairo_device_t *device); cairo_status_t cairo_device_acquire (cairo_device_t *device); void cairo_device_release (cairo_device_t *device); void cairo_device_flush (cairo_device_t *device); void cairo_device_finish (cairo_device_t *device); void cairo_device_destroy (cairo_device_t *device); unsigned int cairo_device_get_reference_count (cairo_device_t *device); void * cairo_device_get_user_data (cairo_device_t *device, const cairo_user_data_key_t *key); cairo_status_t cairo_device_set_user_data (cairo_device_t *device, const cairo_user_data_key_t *key, void *user_data, cairo_destroy_func_t destroy); 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_similar_image (cairo_surface_t *other, cairo_format_t format, int width, int height); cairo_surface_t * cairo_surface_map_to_image (cairo_surface_t *surface, const cairo_rectangle_int_t *extents); void cairo_surface_unmap_image (cairo_surface_t *surface, cairo_surface_t *image); cairo_surface_t * cairo_surface_create_for_rectangle (cairo_surface_t *target, double x, double y, double width, double height); typedef enum _cairo_surface_observer { CAIRO_SURFACE_OBSERVER_NORMAL = 0, CAIRO_SURFACE_OBSERVER_RECORD_OPERATIONS = 0x1 } cairo_surface_observer_mode_t; cairo_surface_t * cairo_surface_create_observer (cairo_surface_t *target, cairo_surface_observer_mode_t mode); typedef void (*cairo_surface_observer_callback_t) (cairo_surface_t *observer, cairo_surface_t *target, void *data); cairo_status_t cairo_surface_observer_add_paint_callback (cairo_surface_t *abstract_surface, cairo_surface_observer_callback_t func, void *data); cairo_status_t cairo_surface_observer_add_mask_callback (cairo_surface_t *abstract_surface, cairo_surface_observer_callback_t func, void *data); cairo_status_t cairo_surface_observer_add_fill_callback (cairo_surface_t *abstract_surface, cairo_surface_observer_callback_t func, void *data); cairo_status_t cairo_surface_observer_add_stroke_callback (cairo_surface_t *abstract_surface, cairo_surface_observer_callback_t func, void *data); cairo_status_t cairo_surface_observer_add_glyphs_callback (cairo_surface_t *abstract_surface, cairo_surface_observer_callback_t func, void *data); cairo_status_t cairo_surface_observer_add_flush_callback (cairo_surface_t *abstract_surface, cairo_surface_observer_callback_t func, void *data); cairo_status_t cairo_surface_observer_add_finish_callback (cairo_surface_t *abstract_surface, cairo_surface_observer_callback_t func, void *data); cairo_status_t cairo_surface_observer_print (cairo_surface_t *surface, cairo_write_func_t write_func, void *closure); double cairo_surface_observer_elapsed (cairo_surface_t *surface); cairo_status_t cairo_device_observer_print (cairo_device_t *device, cairo_write_func_t write_func, void *closure); double cairo_device_observer_elapsed (cairo_device_t *device); double cairo_device_observer_paint_elapsed (cairo_device_t *device); double cairo_device_observer_mask_elapsed (cairo_device_t *device); double cairo_device_observer_fill_elapsed (cairo_device_t *device); double cairo_device_observer_stroke_elapsed (cairo_device_t *device); double cairo_device_observer_glyphs_elapsed (cairo_device_t *device); 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); cairo_device_t * cairo_surface_get_device (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_SCRIPT, CAIRO_SURFACE_TYPE_QT, CAIRO_SURFACE_TYPE_RECORDING, CAIRO_SURFACE_TYPE_VG, CAIRO_SURFACE_TYPE_GL, CAIRO_SURFACE_TYPE_DRM, CAIRO_SURFACE_TYPE_TEE, CAIRO_SURFACE_TYPE_XML, CAIRO_SURFACE_TYPE_SKIA, CAIRO_SURFACE_TYPE_SUBSURFACE, CAIRO_SURFACE_TYPE_COGL } 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_mime_data (cairo_surface_t *surface, const char *mime_type, const void **data, unsigned long *length); cairo_status_t cairo_surface_set_mime_data (cairo_surface_t *surface, const char *mime_type, const void *data, unsigned long length, cairo_destroy_func_t destroy, void *closure); cairo_bool_t cairo_surface_supports_mime_type (cairo_surface_t *surface, const char *mime_type); 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); 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 (void *data, cairo_format_t format, int width, int height, int stride); void * 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_surface_t * cairo_recording_surface_create (cairo_content_t content, const cairo_rectangle_t *extents); void cairo_recording_surface_ink_extents (cairo_surface_t *surface, double *x0, double *y0, double *width, double *height); cairo_bool_t cairo_recording_surface_get_extents (cairo_surface_t *surface, cairo_rectangle_t *extents); typedef cairo_surface_t * (*cairo_raster_source_acquire_func_t) (cairo_pattern_t *pattern, void *callback_data, cairo_surface_t *target, const cairo_rectangle_int_t *extents); typedef void (*cairo_raster_source_release_func_t) (cairo_pattern_t *pattern, void *callback_data, cairo_surface_t *surface); typedef cairo_status_t (*cairo_raster_source_snapshot_func_t) (cairo_pattern_t *pattern, void *callback_data); typedef cairo_status_t (*cairo_raster_source_copy_func_t) (cairo_pattern_t *pattern, void *callback_data, const cairo_pattern_t *other); typedef void (*cairo_raster_source_finish_func_t) (cairo_pattern_t *pattern, void *callback_data); cairo_pattern_t * cairo_pattern_create_raster_source (void *user_data, cairo_content_t content, int width, int height); void cairo_raster_source_pattern_set_callback_data (cairo_pattern_t *pattern, void *data); void * cairo_raster_source_pattern_get_callback_data (cairo_pattern_t *pattern); void cairo_raster_source_pattern_set_acquire (cairo_pattern_t *pattern, cairo_raster_source_acquire_func_t acquire, cairo_raster_source_release_func_t release); void cairo_raster_source_pattern_get_acquire (cairo_pattern_t *pattern, cairo_raster_source_acquire_func_t *acquire, cairo_raster_source_release_func_t *release); void cairo_raster_source_pattern_set_snapshot (cairo_pattern_t *pattern, cairo_raster_source_snapshot_func_t snapshot); cairo_raster_source_snapshot_func_t cairo_raster_source_pattern_get_snapshot (cairo_pattern_t *pattern); void cairo_raster_source_pattern_set_copy (cairo_pattern_t *pattern, cairo_raster_source_copy_func_t copy); cairo_raster_source_copy_func_t cairo_raster_source_pattern_get_copy (cairo_pattern_t *pattern); void cairo_raster_source_pattern_set_finish (cairo_pattern_t *pattern, cairo_raster_source_finish_func_t finish); cairo_raster_source_finish_func_t cairo_raster_source_pattern_get_finish (cairo_pattern_t *pattern); 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_create_mesh (void); 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_MESH, CAIRO_PATTERN_TYPE_RASTER_SOURCE } 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_mesh_pattern_begin_patch (cairo_pattern_t *pattern); void cairo_mesh_pattern_end_patch (cairo_pattern_t *pattern); void cairo_mesh_pattern_curve_to (cairo_pattern_t *pattern, double x1, double y1, double x2, double y2, double x3, double y3); void cairo_mesh_pattern_line_to (cairo_pattern_t *pattern, double x, double y); void cairo_mesh_pattern_move_to (cairo_pattern_t *pattern, double x, double y); void cairo_mesh_pattern_set_control_point (cairo_pattern_t *pattern, unsigned int point_num, double x, double y); void cairo_mesh_pattern_set_corner_color_rgb (cairo_pattern_t *pattern, unsigned int corner_num, double red, double green, double blue); void cairo_mesh_pattern_set_corner_color_rgba (cairo_pattern_t *pattern, unsigned int corner_num, double red, double green, double blue, double alpha); void cairo_pattern_set_matrix (cairo_pattern_t *pattern, const 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); 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; 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); cairo_status_t cairo_mesh_pattern_get_patch_count (cairo_pattern_t *pattern, unsigned int *count); cairo_path_t * cairo_mesh_pattern_get_path (cairo_pattern_t *pattern, unsigned int patch_num); cairo_status_t cairo_mesh_pattern_get_corner_color_rgba (cairo_pattern_t *pattern, unsigned int patch_num, unsigned int corner_num, double *red, double *green, double *blue, double *alpha); cairo_status_t cairo_mesh_pattern_get_control_point (cairo_pattern_t *pattern, unsigned int patch_num, unsigned int point_num, double *x, double *y); 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, const cairo_matrix_t *a, const cairo_matrix_t *b); void cairo_matrix_transform_distance (const cairo_matrix_t *matrix, double *dx, double *dy); void cairo_matrix_transform_point (const cairo_matrix_t *matrix, double *x, double *y); typedef struct _cairo_region cairo_region_t; typedef enum _cairo_region_overlap { CAIRO_REGION_OVERLAP_IN, CAIRO_REGION_OVERLAP_OUT, CAIRO_REGION_OVERLAP_PART } cairo_region_overlap_t; cairo_region_t * cairo_region_create (void); cairo_region_t * cairo_region_create_rectangle (const cairo_rectangle_int_t *rectangle); cairo_region_t * cairo_region_create_rectangles (const cairo_rectangle_int_t *rects, int count); cairo_region_t * cairo_region_copy (const cairo_region_t *original); cairo_region_t * cairo_region_reference (cairo_region_t *region); void cairo_region_destroy (cairo_region_t *region); cairo_bool_t cairo_region_equal (const cairo_region_t *a, const cairo_region_t *b); cairo_status_t cairo_region_status (const cairo_region_t *region); void cairo_region_get_extents (const cairo_region_t *region, cairo_rectangle_int_t *extents); int cairo_region_num_rectangles (const cairo_region_t *region); void cairo_region_get_rectangle (const cairo_region_t *region, int nth, cairo_rectangle_int_t *rectangle); cairo_bool_t cairo_region_is_empty (const cairo_region_t *region); cairo_region_overlap_t cairo_region_contains_rectangle (const cairo_region_t *region, const cairo_rectangle_int_t *rectangle); cairo_bool_t cairo_region_contains_point (const cairo_region_t *region, int x, int y); void cairo_region_translate (cairo_region_t *region, int dx, int dy); cairo_status_t cairo_region_subtract (cairo_region_t *dst, const cairo_region_t *other); cairo_status_t cairo_region_subtract_rectangle (cairo_region_t *dst, const cairo_rectangle_int_t *rectangle); cairo_status_t cairo_region_intersect (cairo_region_t *dst, const cairo_region_t *other); cairo_status_t cairo_region_intersect_rectangle (cairo_region_t *dst, const cairo_rectangle_int_t *rectangle); cairo_status_t cairo_region_union (cairo_region_t *dst, const cairo_region_t *other); cairo_status_t cairo_region_union_rectangle (cairo_region_t *dst, const cairo_rectangle_int_t *rectangle); cairo_status_t cairo_region_xor (cairo_region_t *dst, const cairo_region_t *other); cairo_status_t cairo_region_xor_rectangle (cairo_region_t *dst, const cairo_rectangle_int_t *rectangle); void cairo_debug_reset_static_data (void); // private APIs typedef enum _cairo_lcd_filter { CAIRO_LCD_FILTER_DEFAULT, CAIRO_LCD_FILTER_NONE, CAIRO_LCD_FILTER_INTRA_PIXEL, CAIRO_LCD_FILTER_FIR3, CAIRO_LCD_FILTER_FIR5 } cairo_lcd_filter_t; typedef enum _cairo_round_glyph_pos { CAIRO_ROUND_GLYPH_POS_DEFAULT, CAIRO_ROUND_GLYPH_POS_ON, CAIRO_ROUND_GLYPH_POS_OFF } cairo_round_glyph_positions_t; void _cairo_font_options_set_lcd_filter (cairo_font_options_t *options, cairo_lcd_filter_t lcd_filter); cairo_lcd_filter_t _cairo_font_options_get_lcd_filter (const cairo_font_options_t *options); void _cairo_font_options_set_round_glyph_positions (cairo_font_options_t *options, cairo_round_glyph_positions_t round); cairo_round_glyph_positions_t _cairo_font_options_get_round_glyph_positions (const cairo_font_options_t *options); // cairo-ft.h typedef struct FT_FaceRec_* FT_Face; cairo_font_face_t * cairo_ft_font_face_create_for_ft_face (FT_Face face, int load_flags); typedef enum { CAIRO_FT_SYNTHESIZE_BOLD = 1 << 0, CAIRO_FT_SYNTHESIZE_OBLIQUE = 1 << 1 } cairo_ft_synthesize_t; void cairo_ft_font_face_set_synthesize (cairo_font_face_t *font_face, unsigned int synth_flags); void cairo_ft_font_face_unset_synthesize (cairo_font_face_t *font_face, unsigned int synth_flags); unsigned int cairo_ft_font_face_get_synthesize (cairo_font_face_t *font_face); FT_Face cairo_ft_scaled_font_lock_face (cairo_scaled_font_t *scaled_font); void cairo_ft_scaled_font_unlock_face (cairo_scaled_font_t *scaled_font); // cairo-pdf.h typedef enum _cairo_pdf_version { CAIRO_PDF_VERSION_1_4, CAIRO_PDF_VERSION_1_5 } cairo_pdf_version_t; cairo_surface_t * cairo_pdf_surface_create (const char *filename, double width_in_points, double height_in_points); cairo_surface_t * cairo_pdf_surface_create_for_stream (cairo_write_func_t write_func, void *closure, double width_in_points, double height_in_points); void cairo_pdf_surface_restrict_to_version (cairo_surface_t *surface, cairo_pdf_version_t version); void cairo_pdf_get_versions (cairo_pdf_version_t const **versions, int *num_versions); const char * cairo_pdf_version_to_string (cairo_pdf_version_t version); void cairo_pdf_surface_set_size (cairo_surface_t *surface, double width_in_points, double height_in_points); // cairo-ps.h typedef enum _cairo_ps_level { CAIRO_PS_LEVEL_2, CAIRO_PS_LEVEL_3 } cairo_ps_level_t; cairo_surface_t * cairo_ps_surface_create (const char *filename, double width_in_points, double height_in_points); cairo_surface_t * cairo_ps_surface_create_for_stream (cairo_write_func_t write_func, void *closure, double width_in_points, double height_in_points); void cairo_ps_surface_restrict_to_level (cairo_surface_t *surface, cairo_ps_level_t level); void cairo_ps_get_levels (cairo_ps_level_t const **levels, int *num_levels); const char * cairo_ps_level_to_string (cairo_ps_level_t level); void cairo_ps_surface_set_eps (cairo_surface_t *surface, cairo_bool_t eps); cairo_bool_t cairo_ps_surface_get_eps (cairo_surface_t *surface); void cairo_ps_surface_set_size (cairo_surface_t *surface, double width_in_points, double height_in_points); void cairo_ps_surface_dsc_comment (cairo_surface_t *surface, const char *comment); void cairo_ps_surface_dsc_begin_setup (cairo_surface_t *surface); void cairo_ps_surface_dsc_begin_page_setup (cairo_surface_t *surface); // cairo-svg.h typedef enum _cairo_svg_version { CAIRO_SVG_VERSION_1_1, CAIRO_SVG_VERSION_1_2 } cairo_svg_version_t; cairo_surface_t * cairo_svg_surface_create (const char *filename, double width_in_points, double height_in_points); cairo_surface_t * cairo_svg_surface_create_for_stream (cairo_write_func_t write_func, void *closure, double width_in_points, double height_in_points); void cairo_svg_surface_restrict_to_version (cairo_surface_t *surface, cairo_svg_version_t version); void cairo_svg_get_versions (cairo_svg_version_t const **versions, int *num_versions); const char * cairo_svg_version_to_string (cairo_svg_version_t version); ]]