gvrender_core_dot.c File Reference

#include "config.h"
#include <assert.h>
#include <math.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <common/macros.h>
#include <common/const.h>
#include <gvc/gvplugin_render.h>
#include <gvc/gvplugin_device.h>
#include <common/utils.h>
#include <gvc/gvc.h>
#include <gvc/gvio.h>
#include <util/agxbuf.h>
#include <util/alloc.h>
#include <util/gv_ctype.h>
#include <util/prisize_t.h>
#include <util/streq.h>
#include <util/unreachable.h>
#include "core_loadimage_xdot.h"

Include dependency graph for gvrender_core_dot.c:

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Data Structures
struct	xdot_state_t

Macros
#define	XDOTVERSION   "1.7"
#define	NUMXBUFS   (EMIT_HLABEL+1)

Typedefs
typedef int(*	putstrfn) (void *chan, const char *str)
typedef int(*	flushfn) (void *chan)

Enumerations
enum	format_type {   FORMAT_DOT , FORMAT_CANON , FORMAT_PLAIN , FORMAT_PLAIN_EXT ,   FORMAT_XDOT , FORMAT_XDOT12 , FORMAT_XDOT14 }

Functions
static void	xdot_str_xbuf (agxbuf *xb, char *pfx, const char *s)
static void	xdot_str (GVJ_t *job, char *pfx, const char *s)
static void	xdot_str_color_xbuf (agxbuf *xb, const char *prefix, const unsigned char rgba[4])
static void	xdot_str_color (GVJ_t *job, const char *prefix, const unsigned char rgba[4])
static void	xdot_fmt_num (agxbuf *buf, double v)
static void	xdot_point (agxbuf *xb, pointf p)
static void	xdot_num (agxbuf *xb, double v)
static void	xdot_points (GVJ_t *job, char c, pointf *A, size_t n)
static void	xdot_pencolor (GVJ_t *job)
static void	xdot_fillcolor (GVJ_t *job)
static void	xdot_style (GVJ_t *job)
static void	put_escaping_backslashes (Agobj_t *n, Agsym_t *sym, const char *value)
static void	xdot_end_node (GVJ_t *job)
static void	xdot_end_edge (GVJ_t *job)
static void	xdot_end_cluster (GVJ_t *job)
static unsigned short	versionStr2Version (const char *str)
static void	xdot_begin_graph (graph_t *g, bool s_arrows, bool e_arrows, format_type id, double yOff)
static void	dot_begin_graph (GVJ_t *job)
static void	xdot_end_graph (graph_t *g)
static void	dot_end_graph (GVJ_t *job)
static void	xdot_textspan (GVJ_t *job, pointf p, textspan_t *span)
static void	xdot_color_stop (agxbuf *xb, double v, gvcolor_t *clr)
static void	xdot_gradient_fillcolor (GVJ_t *job, int filled, pointf *A, size_t n)
static void	xdot_ellipse (GVJ_t *job, pointf *A, int filled)
static void	xdot_bezier (GVJ_t *job, pointf *A, size_t n, int filled)
static void	xdot_polygon (GVJ_t *job, pointf *A, size_t n, int filled)
static void	xdot_polyline (GVJ_t *job, pointf *A, size_t n)
void	core_loadimage_xdot (GVJ_t *job, usershape_t *us, boxf b, bool filled)

Variables
static agxbuf	xbuf [NUMXBUFS]
static agxbuf *	xbufs []
static double	penwidth []
static unsigned int	textflags [EMIT_ELABEL+1]
static xdot_state_t *	xd
static const unsigned int	flag_masks [] = {0x1F, 0x3F, 0x7F}
gvrender_engine_t	dot_engine
gvrender_engine_t	xdot_engine
gvrender_features_t	render_features_dot
gvrender_features_t	render_features_xdot
gvdevice_features_t	device_features_canon
gvdevice_features_t	device_features_dot
gvplugin_installed_t	gvrender_dot_types []
gvplugin_installed_t	gvdevice_dot_types []

Macro Definition Documentation

NUMXBUFS

#define NUMXBUFS   (EMIT_HLABEL+1)

Definition at line 48 of file gvrender_core_dot.c.

XDOTVERSION

#define XDOTVERSION   "1.7"

Definition at line 46 of file gvrender_core_dot.c.

Typedef Documentation

flushfn

typedef int(* flushfn) (void *chan)

Definition at line 450 of file gvrender_core_dot.c.

putstrfn

typedef int(* putstrfn) (void *chan, const char *str)

Definition at line 449 of file gvrender_core_dot.c.

Enumeration Type Documentation

format_type

enum format_type

Enumerator
FORMAT_DOT
FORMAT_CANON
FORMAT_PLAIN
FORMAT_PLAIN_EXT
FORMAT_XDOT
FORMAT_XDOT12
FORMAT_XDOT14

Definition at line 36 of file gvrender_core_dot.c.

Function Documentation

core_loadimage_xdot()

void core_loadimage_xdot	(	GVJ_t *	job,
		usershape_t *	us,
		boxf	b,
		bool	filled
	)

Definition at line 659 of file gvrender_core_dot.c.

References agxbput(), obj_state_s::emit_state, boxf::LL, usershape_s::name, GVJ_s::obj, boxf::UR, pointf_s::x, xbufs, xdot_fmt_num(), xdot_str(), and pointf_s::y.

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dot_begin_graph()

static void dot_begin_graph ( GVJ_t *  job )

static

Definition at line 398 of file gvrender_core_dot.c.

References attach_attrs(), attach_attrs_and_arrows(), FORMAT_CANON, FORMAT_DOT, FORMAT_PLAIN, FORMAT_PLAIN_EXT, FORMAT_XDOT, FORMAT_XDOT12, FORMAT_XDOT14, obj_state_s::g, HAS_CLUST_EDGE, gvplugin_active_render_s::id, GVJ_s::obj, GVJ_s::render, obj_state_s::u, undoClusterEdges(), UNREACHABLE, and xdot_begin_graph().

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dot_end_graph()

static void dot_end_graph ( GVJ_t *  job )

static

Definition at line 451 of file gvrender_core_dot.c.

References Agiodisc_s::afread, AgIoDisc, agwrite(), Agraph_s::clos, Agclos_s::disc, Agiodisc_s::flush, FORMAT_CANON, FORMAT_DOT, FORMAT_PLAIN, FORMAT_PLAIN_EXT, FORMAT_XDOT, FORMAT_XDOT12, FORMAT_XDOT14, obj_state_s::g, gvflush(), gvputs(), gvplugin_active_render_s::id, Agdisc_s::io, NULL, GVJ_s::obj, OUTPUT_NOT_REQUIRED, Agiodisc_s::putstr, GVJ_s::render, obj_state_s::u, UNREACHABLE, write_plain(), and xdot_end_graph().

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put_escaping_backslashes()

static void put_escaping_backslashes ( Agobj_t *  n, Agsym_t *  sym, const char *  value  )

static

set the value of a symbol within a node, escaping backslashes

The back ends that output certain text-based formats, e.g. xdot, assume that all characters that have special meaning within a string have already been escaped, with the exception of double quote ("). Hence, any string being constructed from user-provided input needs to be escaped for other problematic characters (namely ) beforehand. This is a little utility function to do such.

Parameters

n	Node to operate on
sym	Symbol to set
value	Unescaped string

Definition at line 218 of file gvrender_core_dot.c.

References agxbfree(), agxbputc(), agxbuse(), and agxset().

Referenced by xdot_end_edge(), xdot_end_graph(), and xdot_end_node().

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versionStr2Version()

static unsigned short versionStr2Version ( const char *  str )

static

Definition at line 293 of file gvrender_core_dot.c.

References agwarningf(), gv_isdigit(), and str.

Referenced by xdot_begin_graph().

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xdot_begin_graph()

static void xdot_begin_graph ( graph_t *  g, bool  s_arrows, bool  e_arrows, format_type  id, double  yOff  )

static

Definition at line 333 of file gvrender_core_dot.c.

References AGEDGE, agget(), AGNODE, AGRAPH, xdot_state_t::e_draw, xdot_state_t::e_l_draw, EDGE_LABEL, EDGE_XLABEL, FORMAT_XDOT12, FORMAT_XDOT14, xdot_state_t::g_draw, xdot_state_t::g_l_draw, GD_has_labels, GD_n_cluster, GRAPH_LABEL, gv_alloc(), xdot_state_t::h_draw, HEAD_LABEL, xdot_state_t::hl_draw, xdot_state_t::n_draw, xdot_state_t::n_l_draw, NULL, NUMXBUFS, safe_dcl(), xdot_state_t::t_draw, TAIL_LABEL, xdot_state_t::tl_draw, xdot_state_t::version, xdot_state_t::version_s, versionStr2Version(), xbuf, xd, XDOTVERSION, and xdot_state_t::yOff.

Referenced by dot_begin_graph().

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xdot_bezier()

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

static

Definition at line 623 of file gvrender_core_dot.c.

References A, GRADIENT, RGRADIENT, xdot_fillcolor(), xdot_gradient_fillcolor(), xdot_pencolor(), xdot_points(), and xdot_style().

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xdot_color_stop()

static void xdot_color_stop ( agxbuf *  xb, double  v, gvcolor_t *  clr  )

static

Definition at line 537 of file gvrender_core_dot.c.

References agxbprint(), agxbputc(), agxbuf_trim_zeros(), color_s::rgba, color_s::u, and xdot_str_color_xbuf().

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xdot_ellipse()

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

static

Definition at line 602 of file gvrender_core_dot.c.

References A, agxbput(), obj_state_s::emit_state, GRADIENT, GVJ_s::obj, RGRADIENT, xbufs, xdot_fillcolor(), xdot_fmt_num(), xdot_gradient_fillcolor(), xdot_pencolor(), and xdot_style().

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xdot_end_cluster()

static void xdot_end_cluster ( GVJ_t *  job )

static

Definition at line 280 of file gvrender_core_dot.c.

References agxbuse(), agxset(), EMIT_CDRAW, EMIT_CLABEL, xdot_state_t::g_draw, xdot_state_t::g_l_draw, GD_label, GVJ_s::obj, penwidth, obj_state_s::sg, textflags, obj_state_s::u, xbufs, and xd.

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xdot_end_edge()

static void xdot_end_edge ( GVJ_t *  job )

static

Definition at line 250 of file gvrender_core_dot.c.

References agxblen(), agxbuse(), agxset(), Agedge_s::base, obj_state_s::e, xdot_state_t::e_draw, xdot_state_t::e_l_draw, EMIT_EDRAW, EMIT_ELABEL, EMIT_HDRAW, EMIT_HLABEL, EMIT_TDRAW, EMIT_TLABEL, xdot_state_t::h_draw, xdot_state_t::hl_draw, GVJ_s::obj, penwidth, put_escaping_backslashes(), xdot_state_t::t_draw, textflags, xdot_state_t::tl_draw, obj_state_s::u, xbufs, and xd.

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xdot_end_graph()

static void xdot_end_graph ( graph_t *  g )

static

Definition at line 427 of file gvrender_core_dot.c.

References AGRAPH, agsafeset(), agxbfree(), agxblen(), agxbuse(), agxset(), Agraph_s::base, EMIT_GDRAW, EMIT_GLABEL, free(), xdot_state_t::g_draw, xdot_state_t::g_l_draw, GD_label, NUMXBUFS, penwidth, put_escaping_backslashes(), safe_dcl(), textflags, xdot_state_t::version_s, xbuf, xbufs, and xd.

Referenced by dot_end_graph().

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xdot_end_node()

static void xdot_end_node ( GVJ_t *  job )

static

Definition at line 237 of file gvrender_core_dot.c.

References agxblen(), agxbuse(), agxset(), Agnode_s::base, EMIT_NDRAW, EMIT_NLABEL, obj_state_s::n, xdot_state_t::n_draw, xdot_state_t::n_l_draw, GVJ_s::obj, penwidth, put_escaping_backslashes(), textflags, obj_state_s::u, xbufs, and xd.

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xdot_fillcolor()

static void xdot_fillcolor ( GVJ_t *  job )

static

Definition at line 156 of file gvrender_core_dot.c.

References obj_state_s::fillcolor, GVJ_s::obj, color_s::rgba, color_s::u, and xdot_str_color().

Referenced by xdot_bezier(), xdot_ellipse(), xdot_gradient_fillcolor(), and xdot_polygon().

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xdot_fmt_num()

static void xdot_fmt_num ( agxbuf *  buf, double  v  )

static

Definition at line 126 of file gvrender_core_dot.c.

References agxbprint(), agxbputc(), and agxbuf_trim_zeros().

Referenced by core_loadimage_xdot(), xdot_ellipse(), xdot_num(), xdot_point(), and xdot_textspan().

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xdot_gradient_fillcolor()

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

static

Definition at line 544 of file gvrender_core_dot.c.

References A, agxbfree(), agxbpop(), agxbput(), agxbputc(), agxbuse(), obj_state_s::fillcolor, G, get_gradient_points(), GRADIENT, obj_state_s::gradient_angle, obj_state_s::gradient_frac, M_PI, GVJ_s::obj, obj_state_s::stopcolor, xdot_state_t::version, pointf_s::x, xd, xdot_fillcolor(), xdot_num(), xdot_str(), and pointf_s::y.

Referenced by xdot_bezier(), xdot_ellipse(), and xdot_polygon().

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xdot_num()

static void xdot_num ( agxbuf *  xb, double  v  )

static

Definition at line 139 of file gvrender_core_dot.c.

References xdot_fmt_num().

Referenced by xdot_gradient_fillcolor().

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xdot_pencolor()

static void xdot_pencolor ( GVJ_t *  job )

static

Definition at line 151 of file gvrender_core_dot.c.

References GVJ_s::obj, obj_state_s::pencolor, color_s::rgba, color_s::u, and xdot_str_color().

Referenced by xdot_bezier(), xdot_ellipse(), xdot_polygon(), xdot_polyline(), and xdot_textspan().

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xdot_point()

static void xdot_point ( agxbuf *  xb, pointf  p  )

static

Definition at line 132 of file gvrender_core_dot.c.

References NULL, pointf_s::x, xd, xdot_fmt_num(), pointf_s::y, yDir(), and xdot_state_t::yOff.

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xdot_points()

static void xdot_points ( GVJ_t *  job, char  c, pointf *  A, size_t  n  )

static

Definition at line 144 of file gvrender_core_dot.c.

References A, agxbprint(), obj_state_s::emit_state, GVJ_s::obj, PRISIZE_T, and xbufs.

Referenced by xdot_bezier(), xdot_polygon(), and xdot_polyline().

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xdot_polygon()

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

static

Definition at line 638 of file gvrender_core_dot.c.

References A, GRADIENT, RGRADIENT, xdot_fillcolor(), xdot_gradient_fillcolor(), xdot_pencolor(), xdot_points(), and xdot_style().

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xdot_polyline()

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

static

Definition at line 653 of file gvrender_core_dot.c.

References A, xdot_pencolor(), xdot_points(), and xdot_style().

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xdot_str()

static void xdot_str ( GVJ_t *  job, char *  pfx, const char *  s  )

static

Definition at line 88 of file gvrender_core_dot.c.

References obj_state_s::emit_state, GVJ_s::obj, xbufs, and xdot_str_xbuf().

Referenced by core_loadimage_xdot(), xdot_gradient_fillcolor(), xdot_style(), and xdot_textspan().

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xdot_str_color()

static void xdot_str_color ( GVJ_t *  job, const char *  prefix, const unsigned char  rgba[4]  )

static

output a color

Parameters

job	Job indicating which state buffer to write to
prefix	String prefix to prepend
rgba	Color in RGBA format

Definition at line 115 of file gvrender_core_dot.c.

References obj_state_s::emit_state, GVJ_s::obj, prefix, xbufs, and xdot_str_color_xbuf().

Referenced by xdot_fillcolor(), and xdot_pencolor().

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xdot_str_color_xbuf()

static void xdot_str_color_xbuf ( agxbuf *  xb, const char *  prefix, const unsigned char  rgba[4]  )

static

output a color

Parameters

xb	Buffer to write to
String	prefix to prepend
rgba	Color in RGBA format

Definition at line 99 of file gvrender_core_dot.c.

References agxbprint(), prefix, and PRISIZE_T.

Referenced by xdot_color_stop(), and xdot_str_color().

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xdot_str_xbuf()

static void xdot_str_xbuf ( agxbuf *  xb, char *  pfx, const char *  s  )

static

Definition at line 83 of file gvrender_core_dot.c.

References agxbprint(), and PRISIZE_T.

Referenced by xdot_str().

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xdot_style()

static void xdot_style ( GVJ_t *  job )

static

Definition at line 161 of file gvrender_core_dot.c.

References agxbfree(), agxbprint(), agxbput(), agxbputc(), agxbuf_trim_zeros(), agxbuse(), obj_state_s::emit_state, GVJ_s::obj, obj_state_s::penwidth, penwidth, obj_state_s::rawstyle, streq(), and xdot_str().

Referenced by xdot_bezier(), xdot_ellipse(), xdot_polygon(), and xdot_polyline().

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xdot_textspan()

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

static

Definition at line 492 of file gvrender_core_dot.c.

References agxbprint(), agxbput(), obj_state_s::emit_state, flag_masks, flags, textfont_t::flags, textspan_t::font, textspan_t::just, textfont_t::name, GVJ_s::obj, textfont_t::size, textspan_t::size, textspan_t::str, textflags, xdot_state_t::version, pointf_s::x, xbufs, xd, xdot_fmt_num(), xdot_pencolor(), xdot_str(), pointf_s::y, and textspan_t::yoffset_centerline.

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Variable Documentation

device_features_canon

gvdevice_features_t device_features_canon

Initial value:

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

Definition at line 757 of file gvrender_core_dot.c.

device_features_dot

gvdevice_features_t device_features_dot

Initial value:

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

Definition at line 764 of file gvrender_core_dot.c.

dot_engine

gvrender_engine_t dot_engine

Definition at line 672 of file gvrender_core_dot.c.

flag_masks

const unsigned int flag_masks[] = {0x1F, 0x3F, 0x7F}

static

Definition at line 490 of file gvrender_core_dot.c.

Referenced by xdot_textspan().

gvdevice_dot_types

gvplugin_installed_t gvdevice_dot_types[]

Initial value:

= {
    {FORMAT_DOT, "dot:dot", 1, NULL, &device_features_dot},
    {FORMAT_DOT, "gv:dot", 1, NULL, &device_features_dot},
    {FORMAT_CANON, "canon:dot", 1, NULL, &device_features_canon},
    {FORMAT_PLAIN, "plain:dot", 1, NULL, &device_features_dot},
    {FORMAT_PLAIN_EXT, "plain-ext:dot", 1, NULL, &device_features_dot},
    {FORMAT_XDOT, "xdot:xdot", 1, NULL, &device_features_dot},
    {FORMAT_XDOT12, "xdot1.2:xdot", 1, NULL, &device_features_dot},
    {FORMAT_XDOT14, "xdot1.4:xdot", 1, NULL, &device_features_dot},
    {0, NULL, 0, NULL, NULL}
}

Definition at line 777 of file gvrender_core_dot.c.

gvrender_dot_types

gvplugin_installed_t gvrender_dot_types[]

Initial value:

= {
    {FORMAT_DOT, "dot", 1, &dot_engine, &render_features_dot},
    {FORMAT_XDOT, "xdot", 1, &xdot_engine, &render_features_xdot},
    {0, NULL, 0, NULL, NULL}
}

Definition at line 771 of file gvrender_core_dot.c.

penwidth

double penwidth[]

static

Initial value:

= {
    1, 1, 1, 1,
    1, 1, 1, 1,
    1, 1, 1, 1,
}

Definition at line 59 of file gvrender_core_dot.c.

Referenced by arrow_gen(), arrow_gen_type(), arrow_length(), arrow_length_box(), arrow_length_crow(), arrow_length_curve(), arrow_length_diamond(), arrow_length_dot(), arrow_length_generic(), arrow_length_normal(), arrow_length_tee(), arrow_type_box(), arrow_type_crow(), arrow_type_crow0(), arrow_type_curve(), arrow_type_diamond(), arrow_type_diamond0(), arrow_type_dot(), arrow_type_gap(), arrow_type_normal(), arrow_type_normal0(), arrow_type_tee(), emit_begin_edge(), emit_clusters(), emit_edge_graphics(), gvrender_set_penwidth(), makeObstacle(), miter_shape(), multicolor(), point_init(), point_inside(), poly_init(), poly_inside(), ps_set_pen_style(), ps_set_pen_style(), record_inside(), setClustNodes(), star_inside(), stylenode(), xdot_end_cluster(), xdot_end_edge(), xdot_end_graph(), xdot_end_node(), and xdot_style().

render_features_dot

gvrender_features_t render_features_dot

Initial value:

= {
    GVRENDER_DOES_TRANSFORM,      
    0.,                         
    NULL,                       
    0,                          
    COLOR_STRING,               
}

Definition at line 738 of file gvrender_core_dot.c.

render_features_xdot

gvrender_features_t render_features_xdot

Initial value:

= {
    GVRENDER_DOES_TRANSFORM       
        | GVRENDER_DOES_MAPS
        | GVRENDER_DOES_TARGETS
        | GVRENDER_DOES_TOOLTIPS, 
    0.,                         
    NULL,                       
    0,                          
    RGBA_BYTE,          
}

Definition at line 746 of file gvrender_core_dot.c.

textflags

unsigned int textflags[EMIT_ELABEL+1]

static

Definition at line 64 of file gvrender_core_dot.c.

Referenced by xdot_end_cluster(), xdot_end_edge(), xdot_end_graph(), xdot_end_node(), and xdot_textspan().

xbuf

agxbuf xbuf[NUMXBUFS]

static

Definition at line 53 of file gvrender_core_dot.c.

Referenced by on_gvprbuttonload_clicked(), xdot_begin_graph(), and xdot_end_graph().

xbufs

agxbuf* xbufs[]

static

Initial value:

= {
    xbuf+EMIT_GDRAW, xbuf+EMIT_CDRAW, xbuf+EMIT_TDRAW, xbuf+EMIT_HDRAW, 
    xbuf+EMIT_GLABEL, xbuf+EMIT_CLABEL, xbuf+EMIT_TLABEL, xbuf+EMIT_HLABEL, 
    xbuf+EMIT_CDRAW, xbuf+EMIT_CDRAW, xbuf+EMIT_CLABEL, xbuf+EMIT_CLABEL, 
}

Definition at line 54 of file gvrender_core_dot.c.

Referenced by core_loadimage_xdot(), xdot_ellipse(), xdot_end_cluster(), xdot_end_edge(), xdot_end_graph(), xdot_end_node(), xdot_points(), xdot_str(), xdot_str_color(), and xdot_textspan().

xd

xdot_state_t* xd

static

Definition at line 81 of file gvrender_core_dot.c.

Referenced by emit_background(), emit_xdot(), init_xdot(), makeXDotSpline(), xdot_begin_graph(), xdot_end_cluster(), xdot_end_edge(), xdot_end_graph(), xdot_end_node(), xdot_gradient_fillcolor(), xdot_point(), xdot_textspan(), and xdotBB().

xdot_engine

gvrender_engine_t xdot_engine

Definition at line 705 of file gvrender_core_dot.c.