svg.c File Reference

implementation of content for image/svg using libsvgtiny. More...

#include <assert.h>
#include <limits.h>
#include <string.h>
#include <stdlib.h>
#include <svgtiny.h>
#include "utils/messages.h"
#include "utils/utils.h"
#include "utils/nsurl.h"
#include "netsurf/plotters.h"
#include "netsurf/content.h"
#include "content/content_protected.h"
#include "content/content_factory.h"
#include "image/svg.h"

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Data Structures
struct	svg_content

Macros
#define	BGR(c)

Typedefs
typedef struct svg_content	svg_content

Functions
static nserror	svg_create_svg_data (svg_content *c)
static nserror	svg_create (const content_handler *handler, lwc_string *imime_type, const struct http_parameter *params, struct llcache_handle *llcache, const char *fallback_charset, bool quirks, struct content **c)
	Create a CONTENT_SVG. More...
static bool	svg_convert (struct content *c)
	Convert a CONTENT_SVG for display. More...
static void	svg_reformat (struct content *c, int width, int height)
	Reformat a CONTENT_SVG. More...
static bool	svg_redraw_internal (svg_content *svg, int x, int y, int width, int height, const struct rect *clip, const struct redraw_context *ctx, float scale, colour background_colour)
	Redraw a CONTENT_SVG. More...
static bool	svg_redraw_tiled_internal (svg_content *svg, struct content_redraw_data *data, const struct rect *clip, const struct redraw_context *ctx)
static bool	svg_redraw (struct content *c, struct content_redraw_data *data, const struct rect *clip, const struct redraw_context *ctx)
	Redraw a CONTENT_SVG. More...
static void	svg_destroy (struct content *c)
	Destroy a CONTENT_SVG and free all resources it owns. More...
static nserror	svg_clone (const struct content *old, struct content **newc)
static content_type	svg_content_type (void)
	CONTENT_FACTORY_REGISTER_TYPES (svg, svg_types, svg_content_handler)

Variables
static const content_handler	svg_content_handler
static const char *	svg_types []

Detailed Description

implementation of content for image/svg using libsvgtiny.

Definition in file svg.c.

Macro Definition Documentation

BGR

#define BGR

(

c

)

Value:

                 (((svgtiny_RED((c))) |                                 \
                 (svgtiny_GREEN((c)) << 8) |                            \
                 (svgtiny_BLUE((c)) << 16)))

Typedef Documentation

svg_content

typedef struct svg_content svg_content

Function Documentation

CONTENT_FACTORY_REGISTER_TYPES()

CONTENT_FACTORY_REGISTER_TYPES	(	svg	,
		svg_types	,
		svg_content_handler
	)

svg_clone()

static nserror svg_clone ( const struct content *  old, struct content **  newc  )

static

Definition at line 338 of file svg.c.

References svg_content::base, content__clone(), content_destroy(), CONTENT_STATUS_DONE, CONTENT_STATUS_READY, NSERROR_CLONE_FAILED, NSERROR_NOMEM, NSERROR_OK, content::status, svg_convert(), and svg_create_svg_data().

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svg_content_type()

static content_type svg_content_type ( void  )

static

Definition at line 373 of file svg.c.

References CONTENT_IMAGE.

svg_convert()

static bool svg_convert ( struct content *  c )

static

Convert a CONTENT_SVG for display.

Definition at line 109 of file svg.c.

References content_set_done(), content_set_ready(), and content_set_status().

Referenced by svg_clone().

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svg_create()

static nserror svg_create ( const content_handler *  handler, lwc_string *  imime_type, const struct http_parameter *  params, struct llcache_handle *  llcache, const char *  fallback_charset, bool  quirks, struct content **  c  )

static

Create a CONTENT_SVG.

Definition at line 73 of file svg.c.

References svg_content::base, content__init(), llcache, NSERROR_NOMEM, NSERROR_OK, and svg_create_svg_data().

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svg_create_svg_data()

static nserror svg_create_svg_data ( svg_content *  c )

static

Definition at line 52 of file svg.c.

References svg_content::base, content_broadcast_error(), svg_content::current_height, svg_content::current_width, svg_content::diagram, NSERROR_NOMEM, and NSERROR_OK.

Referenced by svg_clone(), and svg_create().

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svg_destroy()

static void svg_destroy ( struct content *  c )

static

Destroy a CONTENT_SVG and free all resources it owns.

Definition at line 329 of file svg.c.

References svg_content::diagram.

svg_redraw()

static bool svg_redraw ( struct content *  c, struct content_redraw_data *  data, const struct rect *  clip, const struct redraw_context *  ctx  )

static

Redraw a CONTENT_SVG.

Definition at line 300 of file svg.c.

References content_redraw_data::background_colour, clip(), content_redraw_data::height, content_redraw_data::repeat_x, content_redraw_data::repeat_y, content_redraw_data::scale, svg_redraw_internal(), svg_redraw_tiled_internal(), content_redraw_data::width, content_redraw_data::x, and content_redraw_data::y.

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svg_redraw_internal()

static bool svg_redraw_internal ( svg_content *  svg, int  x, int  y, int  width, int  height, const struct rect *  clip, const struct redraw_context *  ctx, float  scale, colour  background_colour  )

static

Redraw a CONTENT_SVG.

Definition at line 161 of file svg.c.

References plot_font_style::background, svg_content::base, BGR, svg_content::diagram, plot_style_s::fill_colour, plot_style_s::fill_type, plot_font_style::foreground, content::height, height, NS_TRANSPARENT, NSERROR_OK, plotter_table::path, redraw_context::plot, PLOT_OP_TYPE_NONE, PLOT_OP_TYPE_SOLID, plot_style_font, plot_style_int_to_fixed, PLOT_STYLE_SCALE, plot_font_style::size, plot_style_s::stroke_colour, plot_style_s::stroke_type, plot_style_s::stroke_width, plotter_table::text, content::width, and width.

Referenced by svg_redraw(), and svg_redraw_tiled_internal().

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svg_redraw_tiled_internal()

static bool svg_redraw_tiled_internal ( svg_content *  svg, struct content_redraw_data *  data, const struct rect *  clip, const struct redraw_context *  ctx  )

static

Definition at line 254 of file svg.c.

References content_redraw_data::background_colour, clip(), content_redraw_data::height, content_redraw_data::repeat_x, content_redraw_data::repeat_y, content_redraw_data::scale, svg_redraw_internal(), content_redraw_data::width, content_redraw_data::x, and content_redraw_data::y.

Referenced by svg_redraw().

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svg_reformat()

static void svg_reformat ( struct content *  c, int  width, int  height  )

static

Reformat a CONTENT_SVG.

Definition at line 128 of file svg.c.

References content__get_source_data(), content_get_url(), svg_content::current_height, svg_content::current_width, svg_content::diagram, content::height, height, nsurl_access(), content::width, and width.

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Variable Documentation

svg_content_handler

const content_handler svg_content_handler

static

Initial value:

= {
        .create = svg_create,
        .data_complete = svg_convert,
        .reformat = svg_reformat,
        .destroy = svg_destroy,
        .redraw = svg_redraw,
        .clone = svg_clone,
        .type = svg_content_type,
        .no_share = true
}

Definition at line 378 of file svg.c.

svg_types

const char* svg_types[]

static

Initial value:

= {
        "image/svg",
        "image/svg+xml"
}

Definition at line 389 of file svg.c.