gvrender_core_pic.c File Reference

#include "config.h"
#include <math.h>
#include <stdatomic.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <gvc/gvplugin_render.h>
#include <gvc/gvplugin_device.h>
#include <gvc/gvio.h>
#include <common/utils.h>
#include <common/color.h>
#include <common/colorprocs.h>
#include <common/const.h>
#include <util/agxbuf.h>
#include <util/gv_math.h>
#include <util/strview.h>

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Data Structures
struct	fontinfo
struct	font_t
	font characteristics More...

Macros
#define	BEZIERSUBDIVISION   6

Enumerations
enum	{ FORMAT_PIC }

Functions
static double	get_fontscale (const GVJ_t *job, double *height, double *width)
static void	unsupported (char *s)
static const void *	memrchr (const void *s, int c, size_t n)
static const char *	picfontname (strview_t psname)
static void	picptarray (GVJ_t *job, pointf *A, size_t n, int close)
static void	pic_comment (GVJ_t *job, char *str)
static void	pic_begin_graph (GVJ_t *job)
static void	pic_end_graph (GVJ_t *job)
static void	pic_begin_page (GVJ_t *job)
static void	pic_end_page (GVJ_t *job)
static bool	font_name_eq (const font_t *font, const char *name)
	does a font have the given name?
static bool	font_size_eq (const font_t *font, double size)
	does a font have the given size?
static void	pic_textspan (GVJ_t *job, pointf p, textspan_t *span)
static void	pic_ellipse (GVJ_t *job, pointf *A, int filled)
static void	pic_bezier (GVJ_t *job, pointf *A, size_t n, int filled)
static void	pic_polygon (GVJ_t *job, pointf *A, size_t n, int filled)
static void	pic_polyline (GVJ_t *job, pointf *A, size_t n)

Variables
static const char	pic_comments [] = "# "
static const char	troff_comments [] = ".\\\" "
static const char	picgen_msghdr [] = "dot pic plugin: "
static const fontinfo	fonttab []
static const size_t	fonttab_size = sizeof(fonttab) / sizeof(fonttab[0])
static gvrender_engine_t	pic_engine
static gvrender_features_t	render_features_pic
static gvdevice_features_t	device_features_pic
gvplugin_installed_t	gvrender_pic_types []
gvplugin_installed_t	gvdevice_pic_types []

Macro Definition Documentation

BEZIERSUBDIVISION

#define BEZIERSUBDIVISION   6

Definition at line 33 of file gvrender_core_pic.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
FORMAT_PIC

Definition at line 35 of file gvrender_core_pic.c.

Function Documentation

font_name_eq()

static bool font_name_eq ( const font_t *  font, const char *  name  )

static

Definition at line 321 of file gvrender_core_pic.c.

References font, and NULL.

Referenced by pic_textspan().

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font_size_eq()

static bool font_size_eq ( const font_t *  font, double  size  )

static

Definition at line 333 of file gvrender_core_pic.c.

References font, and NULL.

Referenced by pic_textspan().

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get_fontscale()

static double get_fontscale ( const GVJ_t *  job, double *  height, double *  width  )

static

derive the scale factor to apply to fonts

Parameters

job	Job being processed
height	[out] Bounding box height
width	[out] Bounding box width

Returns

Font scale to apply

Definition at line 43 of file gvrender_core_pic.c.

References box::LL, NULL, GVJ_s::pageBoundingBox, PS2INCH, GVJ_s::rotation, SWAP, box::UR, point::x, and point::y.

Referenced by pic_begin_page(), and pic_textspan().

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memrchr()

static const void * memrchr ( const void *  s, int  c, size_t  n  )

static

Definition at line 140 of file gvrender_core_pic.c.

References NULL, SIZE_MAX, and str.

Referenced by picfontname().

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pic_begin_graph()

static void pic_begin_graph ( GVJ_t *  job )

static

Definition at line 186 of file gvrender_core_pic.c.

References agnameof(), GVJ_s::common, obj_state_s::g, gvprintf(), GVCOMMON_s::info, GVJ_s::obj, troff_comments, and obj_state_s::u.

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pic_begin_page()

static void pic_begin_page ( GVJ_t *  job )

static

Definition at line 219 of file gvrender_core_pic.c.

References get_fontscale(), gvprintf(), pic_comments, GVJ_s::rotation, and unsupported().

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pic_bezier()

static void pic_bezier ( GVJ_t *  job, pointf *  A, size_t  n, int  filled  )

static

Definition at line 404 of file gvrender_core_pic.c.

References A, Bezier(), BEZIERSUBDIVISION, gvprintf(), gvputs(), NULL, V, and pointf_s::x.

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pic_comment()

static void pic_comment ( GVJ_t *  job, char *  str  )

static

Definition at line 181 of file gvrender_core_pic.c.

References gvprintf(), pic_comments, and str.

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pic_ellipse()

static void pic_ellipse ( GVJ_t *  job, pointf *  A, int  filled  )

static

Definition at line 391 of file gvrender_core_pic.c.

References A, gvprintf(), and PS2INCH.

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pic_end_graph()

static void pic_end_graph ( GVJ_t *  job )

static

Definition at line 204 of file gvrender_core_pic.c.

References free(), gvprintf(), font_t::name, NULL, troff_comments, and GVJ_s::window.

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pic_end_page()

static void pic_end_page ( GVJ_t *  job )

static

Definition at line 314 of file gvrender_core_pic.c.

References gvprintf().

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pic_polygon()

static void pic_polygon ( GVJ_t *  job, pointf *  A, size_t  n, int  filled  )

static

Definition at line 429 of file gvrender_core_pic.c.

References A, and picptarray().

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pic_polyline()

static void pic_polyline ( GVJ_t *  job, pointf *  A, size_t  n  )

static

Definition at line 434 of file gvrender_core_pic.c.

References A, and picptarray().

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pic_textspan()

static void pic_textspan ( GVJ_t *  job, pointf  p, textspan_t *  span  )

static

Definition at line 340 of file gvrender_core_pic.c.

References textspan_t::font, font_name_eq(), font_size_eq(), free(), get_fontscale(), gvprintf(), gvputc(), gvputs_nonascii(), textspan_t::just, textfont_t::name, font_t::name, NULL, picfontname(), POINTS_PER_INCH, textfont_t::size, textspan_t::size, font_t::size, textspan_t::str, strview(), GVJ_s::window, pointf_s::x, and pointf_s::y.

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picfontname()

static const char * picfontname ( strview_t  psname )

static

Definition at line 151 of file gvrender_core_pic.c.

References agerrorf(), strview_t::data, fonttab, fonttab_size, memrchr(), NULL, picfontname(), picgen_msghdr, prefix, strview_t::size, strview_str_eq(), and fontinfo::trname.

Referenced by pic_textspan(), and picfontname().

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picptarray()

static void picptarray ( GVJ_t *  job, pointf *  A, size_t  n, int  close  )

static

Definition at line 167 of file gvrender_core_pic.c.

References A, gvprintf(), and gvputs().

Referenced by pic_polygon(), and pic_polyline().

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unsupported()

static void unsupported ( char *  s )

static

Definition at line 90 of file gvrender_core_pic.c.

References agwarningf(), and picgen_msghdr.

Referenced by pic_begin_page().

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Variable Documentation

device_features_pic

gvdevice_features_t device_features_pic

static

Initial value:

= {
    0,                          
    {0.,0.},                    
    {0.,0.},                    
    {72.,72.},                  
}

Definition at line 480 of file gvrender_core_pic.c.

fonttab

const fontinfo fonttab[]

static

Definition at line 100 of file gvrender_core_pic.c.

Referenced by picfontname().

fonttab_size

const size_t fonttab_size = sizeof(fonttab) / sizeof(fonttab[0])

static

Definition at line 135 of file gvrender_core_pic.c.

Referenced by picfontname().

gvdevice_pic_types

gvplugin_installed_t gvdevice_pic_types[]

Initial value:

= {
    {FORMAT_PIC, "pic:pic", -1, NULL, &device_features_pic},
    {0, NULL, 0, NULL, NULL}
}

Definition at line 492 of file gvrender_core_pic.c.

gvrender_pic_types

gvplugin_installed_t gvrender_pic_types[]

Initial value:

= {
    {FORMAT_PIC, "pic", -1, &pic_engine, &render_features_pic},
    {0, NULL, 0, NULL, NULL}
}

Definition at line 487 of file gvrender_core_pic.c.

pic_comments

const char pic_comments[] = "# "

static

Definition at line 86 of file gvrender_core_pic.c.

Referenced by pic_begin_page(), and pic_comment().

pic_engine

gvrender_engine_t pic_engine

static

Definition at line 438 of file gvrender_core_pic.c.

picgen_msghdr

const char picgen_msghdr[] = "dot pic plugin: "

static

Definition at line 88 of file gvrender_core_pic.c.

Referenced by picfontname(), and unsupported().

render_features_pic

gvrender_features_t render_features_pic

static

Initial value:

= {
    0,                          
    4.,                         
    NULL,                       
    0,                          
    HSVA_DOUBLE,                
}

Definition at line 472 of file gvrender_core_pic.c.

troff_comments

const char troff_comments[] = ".\\\" "

static

Definition at line 87 of file gvrender_core_pic.c.

Referenced by pic_begin_graph(), and pic_end_graph().