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/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set sw=4 sts=4 expandtab: */
/*
rsvg.h: SAX-based renderer for SVG files into a GdkPixbuf.
Copyright (C) 2000 Eazel, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Author: Raph Levien <raph@artofcode.com>
*/
#ifndef RSVG_H
#define RSVG_H
#define __RSVG_RSVG_H_INSIDE__
#include <glib-object.h>
#include <gio/gio.h>
#include <cairo.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
G_BEGIN_DECLS
#ifndef __GTK_DOC_IGNORE__
/* Override to export public/semi-public APIs */
#ifndef RSVG_API
# define RSVG_API
#endif
#if defined(RSVG_DISABLE_DEPRECATION_WARNINGS) || !GLIB_CHECK_VERSION (2, 31, 0)
#define RSVG_DEPRECATED RSVG_API
#define RSVG_DEPRECATED_FOR(f) RSVG_API
#else
#define RSVG_DEPRECATED G_DEPRECATED RSVG_API
#define RSVG_DEPRECATED_FOR(f) G_DEPRECATED_FOR(f) RSVG_API
#endif
#endif /* __GTK_DOC_IGNORE__ */
#define RSVG_TYPE_HANDLE (rsvg_handle_get_type ())
#define RSVG_HANDLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), RSVG_TYPE_HANDLE, RsvgHandle))
#define RSVG_HANDLE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), RSVG_TYPE_HANDLE, RsvgHandleClass))
#define RSVG_IS_HANDLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), RSVG_TYPE_HANDLE))
#define RSVG_IS_HANDLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), RSVG_TYPE_HANDLE))
#define RSVG_HANDLE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), RSVG_TYPE_HANDLE, RsvgHandleClass))
RSVG_API
GType rsvg_handle_get_type (void);
/**
* RsvgError:
* @RSVG_ERROR_FAILED: the request failed
*
* An enumeration representing possible errors
*/
typedef enum {
RSVG_ERROR_FAILED
} RsvgError;
#define RSVG_ERROR (rsvg_error_quark ())
RSVG_API
GQuark rsvg_error_quark (void) G_GNUC_CONST;
RSVG_API
GType rsvg_error_get_type (void);
#define RSVG_TYPE_ERROR (rsvg_error_get_type())
typedef struct _RsvgHandle RsvgHandle;
typedef struct _RsvgHandleClass RsvgHandleClass;
typedef struct _RsvgDimensionData RsvgDimensionData;
typedef struct _RsvgPositionData RsvgPositionData;
typedef struct _RsvgRectangle RsvgRectangle;
/**
* RsvgHandleClass:
* @parent: parent class
*
* Class structure for #RsvgHandle.
*/
struct _RsvgHandleClass {
GObjectClass parent;
/*< private >*/
gpointer _abi_padding[15];
};
/**
* RsvgHandle:
*
* Lets you load SVG data and render it.
*/
struct _RsvgHandle {
GObject parent;
/*< private >*/
gpointer _abi_padding[16];
};
/**
* RsvgDimensionData:
* @width: SVG's width, in pixels
* @height: SVG's height, in pixels
* @em: SVG's original width, unmodified by #RsvgSizeFunc
* @ex: SVG's original height, unmodified by #RsvgSizeFunc
*
* Dimensions of an SVG image from rsvg_handle_get_dimensions(), or an
* individual element from rsvg_handle_get_dimensions_sub(). Please see
* the deprecation documentation for those functions.
*
* Deprecated: 2.46. FIXME: point to deprecation documentation.
*/
struct _RsvgDimensionData {
int width;
int height;
gdouble em;
gdouble ex;
};
/**
* RsvgPositionData:
* @x: position on the x axis
* @y: position on the y axis
*
* Position of an SVG fragment from rsvg_handle_get_position_sub(). Please
* the deprecation documentation for that function.
*
* Deprecated: 2.46. FIXME: point to deprecation documentation.
*/
struct _RsvgPositionData {
int x;
int y;
};
/**
* RsvgRectangle:
* @x: X coordinate of the left side of the rectangle
* @y: Y coordinate of the the top side of the rectangle
* @width: width of the rectangle
* @height: height of the rectangle
*
* A data structure for holding a rectangle.
*
* Since: 2.46
*/
struct _RsvgRectangle {
double x;
double y;
double width;
double height;
};
RSVG_DEPRECATED
void rsvg_cleanup (void);
RSVG_DEPRECATED
void rsvg_set_default_dpi (double dpi);
RSVG_DEPRECATED
void rsvg_set_default_dpi_x_y (double dpi_x, double dpi_y);
RSVG_API
void rsvg_handle_set_dpi (RsvgHandle *handle, double dpi);
RSVG_API
void rsvg_handle_set_dpi_x_y (RsvgHandle *handle, double dpi_x, double dpi_y);
RSVG_API
RsvgHandle *rsvg_handle_new (void);
RSVG_DEPRECATED_FOR(rsvg_handle_read_stream_sync)
gboolean rsvg_handle_write (RsvgHandle *handle,
const guchar *buf,
gsize count,
GError **error);
RSVG_DEPRECATED_FOR(rsvg_handle_read_stream_sync)
gboolean rsvg_handle_close (RsvgHandle *handle, GError **error);
RSVG_API
GdkPixbuf *rsvg_handle_get_pixbuf (RsvgHandle *handle);
RSVG_API
GdkPixbuf *rsvg_handle_get_pixbuf_sub (RsvgHandle *handle, const char *id);
RSVG_API
const char *rsvg_handle_get_base_uri (RsvgHandle *handle);
RSVG_API
void rsvg_handle_set_base_uri (RsvgHandle *handle, const char *base_uri);
RSVG_API
void rsvg_handle_get_dimensions (RsvgHandle *handle, RsvgDimensionData *dimension_data);
RSVG_DEPRECATED_FOR(rsvg_handle_get_geometry_for_layer)
gboolean rsvg_handle_get_dimensions_sub (RsvgHandle *handle,
RsvgDimensionData *dimension_data,
const char *id);
RSVG_DEPRECATED_FOR(rsvg_handle_get_geometry_for_layer)
gboolean rsvg_handle_get_position_sub (RsvgHandle *handle,
RsvgPositionData *position_data,
const char *id);
RSVG_API
gboolean rsvg_handle_has_sub (RsvgHandle *handle, const char *id);
/**
* RsvgUnit:
* @RSVG_UNIT_PERCENT: percentage values; where <literal>1.0</literal> means 100%.
* @RSVG_UNIT_PX: pixels
* @RSVG_UNIT_EM: em, or the current font size
* @RSVG_UNIT_EX: x-height of the current font
* @RSVG_UNIT_IN: inches
* @RSVG_UNIT_CM: centimeters
* @RSVG_UNIT_MM: millimeters
* @RSVG_UNIT_PT: points, or 1/72 inch
* @RSVG_UNIT_PC: picas, or 1/6 inch (12 points)
*
* Units for the #RsvgLength struct. These have the same meaning as <ulink
* url="https://www.w3.org/TR/CSS21/syndata.html#length-units">CSS length
* units</ulink>.
*/
typedef enum {
RSVG_UNIT_PERCENT,
RSVG_UNIT_PX,
RSVG_UNIT_EM,
RSVG_UNIT_EX,
RSVG_UNIT_IN,
RSVG_UNIT_CM,
RSVG_UNIT_MM,
RSVG_UNIT_PT,
RSVG_UNIT_PC
} RsvgUnit;
/**
* RsvgLength:
* @length: numeric part of the length
* @unit: unit part of the length
*
* #RsvgLength values are used in rsvg_handle_get_intrinsic_dimensions(), for
* example, to return the CSS length values of the <literal>width</literal> and
* <literal>height</literal> attributes of an <literal><svg></literal>
* element.
*
* This is equivalent to <ulink
* url="https://www.w3.org/TR/CSS21/syndata.html#length-units">CSS lengths</ulink>.
*
* It is up to the calling application to convert lengths in non-pixel units
* (i.e. those where the @unit field is not #RSVG_UNIT_PX) into something
* meaningful to the application. For example, if your application knows the
* dots-per-inch (DPI) it is using, it can convert lengths with @unit in
* #RSVG_UNIT_IN or other physical units.
*/
typedef struct {
double length;
RsvgUnit unit;
} RsvgLength;
RSVG_API
void rsvg_handle_get_intrinsic_dimensions (RsvgHandle *handle,
gboolean *out_has_width,
RsvgLength *out_width,
gboolean *out_has_height,
RsvgLength *out_height,
gboolean *out_has_viewbox,
RsvgRectangle *out_viewbox);
/* GIO APIs */
/**
* RsvgHandleFlags:
* @RSVG_HANDLE_FLAGS_NONE: No flags are set.
* @RSVG_HANDLE_FLAG_UNLIMITED: Disable safety limits in the XML parser.
* Libxml2 has <ulink
* url="https://gitlab.gnome.org/GNOME/libxml2/blob/master/include/libxml/parserInternals.h">several
* limits</ulink> designed to keep malicious XML content from consuming too
* much memory while parsing. For security reasons, this should only be used
* for trusted input!
* Since: 2.40.3
* @RSVG_HANDLE_FLAG_KEEP_IMAGE_DATA: Use this if the Cairo surface to which you
* are rendering is a PDF, PostScript, SVG, or Win32 Printing surface. This
* will make librsvg and Cairo use the original, compressed data for images in
* the final output, instead of passing uncompressed images. This will make a
* Keeps the image data when loading images, for use by cairo when painting to
* e.g. a PDF surface. For example, this will make the a resulting PDF file
* smaller and faster. Please see <ulink
* url="https://www.cairographics.org/manual/cairo-cairo-surface-t.html#cairo-surface-set-mime-data">the
* Cairo documentation</ulink> for details.
* Since: 2.40.3
*/
typedef enum /*< flags >*/
{
RSVG_HANDLE_FLAGS_NONE = 0,
RSVG_HANDLE_FLAG_UNLIMITED = 1 << 0,
RSVG_HANDLE_FLAG_KEEP_IMAGE_DATA = 1 << 1
} RsvgHandleFlags;
RSVG_API
GType rsvg_handle_flags_get_type (void);
#define RSVG_TYPE_HANDLE_FLAGS (rsvg_handle_flags_get_type())
RSVG_API
RsvgHandle *rsvg_handle_new_with_flags (RsvgHandleFlags flags);
RSVG_API
void rsvg_handle_set_base_gfile (RsvgHandle *handle,
GFile *base_file);
RSVG_API
gboolean rsvg_handle_read_stream_sync (RsvgHandle *handle,
GInputStream *stream,
GCancellable *cancellable,
GError **error);
RSVG_API
RsvgHandle *rsvg_handle_new_from_gfile_sync (GFile *file,
RsvgHandleFlags flags,
GCancellable *cancellable,
GError **error);
RSVG_API
RsvgHandle *rsvg_handle_new_from_stream_sync (GInputStream *input_stream,
GFile *base_file,
RsvgHandleFlags flags,
GCancellable *cancellable,
GError **error);
RSVG_API
RsvgHandle *rsvg_handle_new_from_data (const guint8 *data, gsize data_len, GError **error);
RSVG_API
RsvgHandle *rsvg_handle_new_from_file (const gchar *filename, GError **error);
RSVG_API
gboolean rsvg_handle_set_stylesheet (RsvgHandle *handle,
const guint8 *css,
gsize css_len,
GError **error);
#ifndef __GTK_DOC_IGNORE__
RSVG_API
void rsvg_handle_internal_set_testing (RsvgHandle *handle, gboolean testing);
#endif /* __GTK_DOC_IGNORE__ */
/* BEGIN deprecated APIs. Do not use! */
#ifndef __GI_SCANNER__
RSVG_DEPRECATED_FOR(g_type_init)
void rsvg_init (void);
RSVG_DEPRECATED
void rsvg_term (void);
RSVG_DEPRECATED_FOR(g_object_unref)
void rsvg_handle_free (RsvgHandle *handle);
/**
* RsvgSizeFunc:
* @width: (out): the width of the SVG
* @height: (out): the height of the SVG
* @user_data: user data
*
* Function to let a user of the library specify the SVG's dimensions
*
* Deprecated: 2.14. Set up a cairo matrix and use rsvg_handle_render_cairo() instead.
* See the documentation for rsvg_handle_set_size_callback() for an example, and
* for the reasons for deprecation.
*/
typedef void (*RsvgSizeFunc) (gint * width, gint * height, gpointer user_data);
RSVG_DEPRECATED
void rsvg_handle_set_size_callback (RsvgHandle *handle,
RsvgSizeFunc size_func,
gpointer user_data,
GDestroyNotify user_data_destroy);
/* GdkPixbuf convenience API */
RSVG_DEPRECATED
GdkPixbuf *rsvg_pixbuf_from_file (const gchar *filename,
GError **error);
RSVG_DEPRECATED
GdkPixbuf *rsvg_pixbuf_from_file_at_zoom (const gchar *filename,
double x_zoom,
double y_zoom,
GError **error);
RSVG_DEPRECATED
GdkPixbuf *rsvg_pixbuf_from_file_at_size (const gchar *filename,
gint width,
gint height,
GError **error);
RSVG_DEPRECATED
GdkPixbuf *rsvg_pixbuf_from_file_at_max_size (const gchar *filename,
gint max_width,
gint max_height,
GError **error);
RSVG_DEPRECATED
GdkPixbuf *rsvg_pixbuf_from_file_at_zoom_with_max (const gchar *filename,
double x_zoom,
double y_zoom,
gint max_width,
gint max_height,
GError **error);
RSVG_DEPRECATED
const char *rsvg_handle_get_title (RsvgHandle *handle);
RSVG_DEPRECATED
const char *rsvg_handle_get_desc (RsvgHandle *handle);
RSVG_DEPRECATED
const char *rsvg_handle_get_metadata (RsvgHandle *handle);
#endif /* !__GI_SCANNER__ */
/* END deprecated APIs. */
G_END_DECLS
#include "librsvg-features.h"
#include "rsvg-cairo.h"
#undef __RSVG_RSVG_H_INSIDE__
#endif /* RSVG_H */