cairo.c File Reference

#include <stdio.h>
#include <string.h>
#include <math.h>
#include <cairo.h>
#include <pango/pangocairo.h>
#include "plDevs.h"
#include "plplotP.h"
#include "drivers.h"

Go to the source code of this file.

Classes
struct	PLCairo

Macros
#define	DPI   72
#define	PLCAIRO_DEFAULT_X   720
#define	PLCAIRO_DEFAULT_Y   540
#define	MAX_STRING_LEN   500
#define	MAX_MARKUP_LEN   MAX_STRING_LEN * 10
#define	NPANGOLOOKUP   5
#define	FAMILY_LOOKUP_LEN   1024
#define	TAG_LEN   200
#define	RISE_FACTOR   0.8

Functions
PLCairo *	stream_and_font_setup (PLStream *, int)
cairo_status_t	write_to_stream (void *, unsigned char *, unsigned int)
void	set_clip (PLStream *pls)
int	cairo_family_check (PLStream *pls)
static void	proc_str (PLStream *, EscText *)
static void	text_begin_cairo (PLStream *pls, EscText *args)
static void	text_char_cairo (PLStream *pls, EscText *args)
static void	text_esc_cairo (PLStream *pls, EscText *args)
static void	text_end_cairo (PLStream *pls, EscText *args)
static char *	ucs4_to_pango_markup_format (PLUNICODE *, int, float)
static void	open_span_tag (char *, PLUNICODE, float, int)
static void	close_span_tag (char *, int)
static char *	rise_span_tag (int, float, float, float)
static void	set_current_context (PLStream *)
static void	poly_line (PLStream *, short *, short *, PLINT)
static void	filled_polygon (PLStream *pls, short *xa, short *ya, PLINT npts)
static void	gradient (PLStream *pls, short *xa, short *ya, PLINT npts)
static void	arc (PLStream *, arc_struct *)
static void	rotate_cairo_surface (PLStream *, float, float, float, float, float, float, PLBOOL)
static void	blit_to_x (PLStream *pls, double x, double y, double w, double h)
static void	start_raster (PLStream *)
static void	end_raster (PLStream *)
static void	set_mode (PLStream *, PLINT *)
static void	get_mode (PLStream *, PLINT *)
void	get_line_properties (PLCairo *aStream, cairo_line_join_t *join, cairo_line_cap_t *cap)
void	set_line_properties (PLCairo *aStream, cairo_line_join_t join, cairo_line_cap_t cap)
void	plD_bop_cairo (PLStream *)
void	plD_eop_cairo (PLStream *)
void	plD_state_cairo (PLStream *, PLINT)
void	plD_esc_cairo (PLStream *, PLINT, void *)
void	plD_tidy_cairo (PLStream *)
void	plD_line_cairo (PLStream *, short, short, short, short)
void	plD_polyline_cairo (PLStream *, short *, short *, PLINT)
void	plD_state_cairo (PLStream *PL_UNUSED(pls), PLINT PL_UNUSED(op))

Variables
static int	text_clipping
static int	text_anti_aliasing
static int	graphics_anti_aliasing
static int	external_drawable
static int	rasterize_image
static int	set_background
static int	image_buffering
static int	already_warned = 0
static DrvOpt	cairo_options []
PLDLLIMPEXP_DRIVER const char *	plD_DEVICE_INFO_cairo =
const char *	defaultFamilyLookup [NPANGOLOOKUP]
const char *	envFamilyLookup [NPANGOLOOKUP]
char	familyLookup [NPANGOLOOKUP][FAMILY_LOOKUP_LEN]
const char *	weightLookup [2]
const char *	styleLookup [3]

Macro Definition Documentation

#define DPI   72

Definition at line 71 of file cairo.c.

#define FAMILY_LOOKUP_LEN   1024

Definition at line 214 of file cairo.c.

#define MAX_MARKUP_LEN   MAX_STRING_LEN * 10

Definition at line 76 of file cairo.c.

#define MAX_STRING_LEN   500

Definition at line 75 of file cairo.c.

#define NPANGOLOOKUP   5

Definition at line 196 of file cairo.c.

#define PLCAIRO_DEFAULT_X   720

Definition at line 72 of file cairo.c.

#define PLCAIRO_DEFAULT_Y   540

Definition at line 73 of file cairo.c.

#define RISE_FACTOR   0.8

Definition at line 1226 of file cairo.c.

#define TAG_LEN   200

Definition at line 217 of file cairo.c.

Function Documentation

void arc ( PLStream *  pls, arc_struct *  arc_info  )

static

Definition at line 1608 of file cairo.c.

static void blit_to_x ( PLStream *  pls, double  x, double  y, double  w, double  h  )

static

int cairo_family_check

(

PLStream *

pls

)

Definition at line 1585 of file cairo.c.

void close_span_tag ( char *  pangoMarkupString, int  upDown  )

static

Definition at line 1199 of file cairo.c.

void end_raster ( PLStream *  pls )

static

Definition at line 342 of file cairo.c.

void filled_polygon ( PLStream *  pls, short *  xa, short *  ya, PLINT  npts  )

static

Definition at line 1452 of file cairo.c.

void get_line_properties	(	PLCairo *	aStream,
		cairo_line_join_t *	join,
		cairo_line_cap_t *	cap
	)

Definition at line 422 of file cairo.c.

void get_mode ( PLStream *  pls, PLINT *  mode  )

static

Definition at line 614 of file cairo.c.

void gradient ( PLStream *  pls, short *  xa, short *  ya, PLINT  npts  )

static

Definition at line 1499 of file cairo.c.

void open_span_tag ( char *  pangoMarkupString, PLUNICODE  fci, float  fontSize, int  upDown  )

static

Definition at line 1137 of file cairo.c.

void plD_bop_cairo

(

PLStream *

pls

)

Definition at line 385 of file cairo.c.

void plD_eop_cairo

(

PLStream *

pls

)

Definition at line 483 of file cairo.c.

void plD_esc_cairo	(	PLStream *	pls,
		PLINT	op,
		void *	ptr
	)

Definition at line 530 of file cairo.c.

void plD_line_cairo	(	PLStream *	pls,
		short	x1a,
		short	y1a,
		short	x2a,
		short	y2a
	)

Definition at line 434 of file cairo.c.

void plD_polyline_cairo	(	PLStream *	pls,
		short *	xa,
		short *	ya,
		PLINT	npts
	)

Definition at line 460 of file cairo.c.

void plD_state_cairo	(	PLStream *	,
		PLINT
	)

void plD_state_cairo	(	PLStream *	PL_UNUSEDpls,
		PLINT	PL_UNUSEDop
	)

Definition at line 520 of file cairo.c.

void plD_tidy_cairo

(

PLStream *

pls

)

Definition at line 498 of file cairo.c.

void poly_line ( PLStream *  pls, short *  xa, short *  ya, PLINT  npts  )

static

Definition at line 1430 of file cairo.c.

void proc_str ( PLStream *  pls, EscText *  args  )

static

Definition at line 873 of file cairo.c.

char * rise_span_tag ( int  ifsuperscript, float  fontSize, float  multiplier, float  rise  )

static

Definition at line 1239 of file cairo.c.

void rotate_cairo_surface ( PLStream *  pls, float  x11, float  x12, float  x21, float  x22, float  x0, float  y0, PLBOOL  is_xcairo  )

static

Definition at line 1666 of file cairo.c.

void set_clip

(

PLStream *

pls

)

Definition at line 1543 of file cairo.c.

void set_current_context ( PLStream *  pls )

static

Definition at line 1401 of file cairo.c.

void set_line_properties	(	PLCairo *	aStream,
		cairo_line_join_t	join,
		cairo_line_cap_t	cap
	)

Definition at line 428 of file cairo.c.

void set_mode ( PLStream *  pls, PLINT *  mode  )

static

Definition at line 586 of file cairo.c.

void start_raster ( PLStream *  pls )

static

Definition at line 298 of file cairo.c.

PLCairo * stream_and_font_setup	(	PLStream *	pls,
		int	interactive
	)

Definition at line 1301 of file cairo.c.

void text_begin_cairo ( PLStream *  pls, EscText *  args  )

static

Definition at line 646 of file cairo.c.

void text_char_cairo ( PLStream *  pls, EscText *  args  )

static

Definition at line 670 of file cairo.c.

void text_end_cairo ( PLStream *  pls, EscText *  args  )

static

Definition at line 773 of file cairo.c.

void text_esc_cairo ( PLStream *  pls, EscText *  args  )

static

Definition at line 704 of file cairo.c.

char * ucs4_to_pango_markup_format ( PLUNICODE *  ucs4, int  ucs4Len, float  fontSize  )

static

Definition at line 992 of file cairo.c.

cairo_status_t write_to_stream	(	void *	filePointer,
		unsigned char *	data,
		unsigned int	length
	)

Definition at line 1277 of file cairo.c.

Variable Documentation

int already_warned = 0

static

Definition at line 85 of file cairo.c.

DrvOpt cairo_options[]

static

Initial value:

= { { "text_clipping",          DRV_INT, &text_clipping,          "Use text clipping (text_clipping=0|1)"                                                                                                                                                                                          },
                                  { "text_anti_aliasing",     DRV_INT, &text_anti_aliasing,     "Set desired text anti-aliasing (text_anti_aliasing=0|1|2|3). The numbers are in the same order as the cairo_antialias_t enumeration documented at http://cairographics.org/manual/cairo-cairo-t.html#cairo-antialias-t)"        },
                                  { "graphics_anti_aliasing", DRV_INT, &graphics_anti_aliasing, "Set desired graphics anti-aliasing (graphics_anti_aliasing=0|1|2|3). The numbers are in the same order as the cairo_antialias_t enumeration documented at http://cairographics.org/manual/cairo-cairo-t.html#cairo-antialias-t" },
                                  { "external_drawable",      DRV_INT, &external_drawable,      "Plot to external X drawable"                                                                                                                                                                                                    },
                                  { "rasterize_image",        DRV_INT, &rasterize_image,        "Raster or vector image rendering (rasterize_image=0|1)"                                                                                                                                                                         },
                                  { "set_background",         DRV_INT, &set_background,         "Set the background for the extcairo device (set_background=0|1). If 1 then the plot background will set by PLplot"                                                                                                              },
                                  { "image_buffering",        DRV_INT, &image_buffering,        "Buffered offscreen rendering for the xcairo device (image_buffering=0|1)."                                                                                                                                                      },
                                  { NULL,                     DRV_INT, NULL,                    NULL                                                                                                                                                                                                                             } }

Definition at line 87 of file cairo.c.

const char* defaultFamilyLookup[NPANGOLOOKUP]

Initial value:

= {
    "sans",
    "serif",
    "monospace",
    "sans,serif",
    "sans,serif"
}

Definition at line 198 of file cairo.c.

const char* envFamilyLookup[NPANGOLOOKUP]

Initial value:

= {
    "PLPLOT_FREETYPE_SANS_FAMILY",
    "PLPLOT_FREETYPE_SERIF_FAMILY",
    "PLPLOT_FREETYPE_MONO_FAMILY",
    "PLPLOT_FREETYPE_SCRIPT_FAMILY",
    "PLPLOT_FREETYPE_SYMBOL_FAMILY"
}

Definition at line 206 of file cairo.c.

int external_drawable

static

Definition at line 81 of file cairo.c.

char familyLookup[NPANGOLOOKUP][FAMILY_LOOKUP_LEN]

Definition at line 215 of file cairo.c.

int graphics_anti_aliasing

static

Definition at line 80 of file cairo.c.

int image_buffering

static

Definition at line 84 of file cairo.c.

PLDLLIMPEXP_DRIVER const char* plD_DEVICE_INFO_cairo =

Definition at line 149 of file cairo.c.

int rasterize_image

static

Definition at line 82 of file cairo.c.

int set_background

static

Definition at line 83 of file cairo.c.

const char* styleLookup[3]

Initial value:

= {
    "normal",
    "italic",
    "oblique"
}

Definition at line 224 of file cairo.c.

int text_anti_aliasing

static

Definition at line 79 of file cairo.c.

int text_clipping

static

Definition at line 78 of file cairo.c.

const char* weightLookup[2]

Initial value:

= {
    "normal",
    "bold"
}

Definition at line 219 of file cairo.c.