Graphviz: Graphviz context library (GVC) API

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Collaboration diagram for Graphviz context library (GVC) API:

Files
file	gvc.h
	Graphviz context library.

file	gvcext.h

file	gvcjob.h

file	gvcommon.h

file	gvconfig.h

Macros
#define	LAYOUT_DONE(g) (agbindrec(g, "Agraphinfo_t", 0, true) && GD_drawing(g))

Functions
void	gvToggle (int)

GVC_t *	gvNEWcontext (const lt_symlist_t *builtins, int demand_loading)

GVC_t *	gvContext (void)

GVC_t *	gvContextPlugins (const lt_symlist_t *builtins, int demand_loading)

char **	gvcInfo (GVC_t *)

char *	gvcVersion (GVC_t *)

char *	gvcBuildDate (GVC_t *)

int	gvParseArgs (GVC_t gvc, int argc, char *argv)

graph_t *	gvNextInputGraph (GVC_t *gvc)

graph_t *	gvPluginsGraph (GVC_t *gvc)

int	gvLayout (GVC_t gvc, graph_t g, const char *engine)

int	gvLayoutJobs (GVC_t gvc, graph_t g)

bool	gvLayoutDone (graph_t *g)

void	attach_attrs (graph_t *g)

int	gvRender (GVC_t gvc, graph_t g, const char format, FILE out)

int	gvRenderFilename (GVC_t gvc, graph_t g, const char format, const char filename)

int	gvRenderContext (GVC_t gvc, graph_t g, const char format, void context)

int	gvRenderData (GVC_t gvc, graph_t g, const char format, char result, unsigned int length)

void	gvFreeRenderData (char *data)

int	gvRenderJobs (GVC_t gvc, graph_t g)

int	gvFreeLayout (GVC_t gvc, graph_t g)

void	gvFinalize (GVC_t *gvc)

int	gvFreeContext (GVC_t *gvc)

char **	gvPluginList (GVC_t gvc, const char kind, int *sz)

void	gvAddLibrary (GVC_t gvc, gvplugin_library_t lib)

int	gvToolTred (graph_t *g)

Detailed Description

Macro Definition Documentation

◆ LAYOUT_DONE

#define LAYOUT_DONE ( g ) (agbindrec(g, "Agraphinfo_t", 0, true) && GD_drawing(g))

Definition at line 51 of file gvc.h.

Function Documentation

◆ attach_attrs()

void attach_attrs ( graph_t * g )

Definition at line 383 of file output.c.

References attach_attrs_and_arrows().

Referenced by dot_begin_graph(), json_begin_graph(), main(), and render().

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◆ gvAddLibrary()

void gvAddLibrary	(	GVC_t *	gvc,
		gvplugin_library_t *	lib
	)

Add a library from your user application

Parameters

gvc	Graphviz context to add library to
lib	library to add

Definition at line 228 of file gvc.c.

References gvc, gvconfig_plugin_install_from_library(), and NULL.

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◆ gvcBuildDate()

char * gvcBuildDate ( GVC_t * gvc )

Definition at line 235 of file gvc.c.

References GVC_s::common, gvc, and GVCOMMON_s::info.

◆ gvcInfo()

char ** gvcInfo ( GVC_t * gvc )

Definition at line 233 of file gvc.c.

References GVC_s::common, gvc, and GVCOMMON_s::info.

◆ gvContext()

GVC_t * gvContext ( void )

Definition at line 24 of file gvc.c.

References agattr(), AGNODE, gvc, gvconfig(), gvNEWcontext(), NODENAME_ESC, and NULL.

Referenced by CFrmSettings::CFrmSettings(), main(), main(), and main().

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◆ gvContextPlugins()

GVC_t * gvContextPlugins	(	const lt_symlist_t *	builtins,
		int	demand_loading
	)

Definition at line 35 of file gvc.c.

References agattr(), AGNODE, gvc, gvconfig(), gvNEWcontext(), NODENAME_ESC, and NULL.

Referenced by gv_init(), main(), main(), and Tcldot_Init().

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◆ gvcVersion()

char * gvcVersion ( GVC_t * gvc )

Definition at line 234 of file gvc.c.

References GVC_s::common, gvc, and GVCOMMON_s::info.

◆ gvFinalize()

void gvFinalize ( GVC_t * gvc )

Definition at line 57 of file gvcontext.c.

References GVC_s::active_jobs, gvc, and gvrender_end_job().

Referenced by main().

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◆ gvFreeContext()

int gvFreeContext ( GVC_t * gvc )

Definition at line 64 of file gvcontext.c.

References agerrors(), GVC_s::apis, GVC_s::config_path, emit_once_reset(), free(), graphviz_errors, gvc, GVC_s::gvgs, gvjobs_delete(), GVC_s::input_filenames, gvplugin_package_s::name, gvplugin_package_s::next, gvplugin_available_s::next, GVG_s::next, NULL, GVC_s::packages, gvplugin_package_s::path, textfont_dict_close(), and gvplugin_available_s::typestr.

Referenced by main(), and main().

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◆ gvFreeLayout()

int gvFreeLayout	(	GVC_t *	gvc,
		graph_t *	g
	)

Definition at line 105 of file gvlayout.c.

References agbindrec(), GD_cleanup, graph_cleanup(), gvc, and NULL.

Referenced by layout(), main(), main(), main(), and tcldot_layout().

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◆ gvFreeRenderData()

void gvFreeRenderData ( char * data )

Definition at line 223 of file gvc.c.

References free().

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◆ gvLayout()

int gvLayout	(	GVC_t *	gvc,
		graph_t *	g,
		const char *	engine
	)

Definition at line 52 of file gvc.c.

◆ gvLayoutDone()

bool gvLayoutDone ( graph_t * g )

Definition at line 94 of file gvlayout.c.

References LAYOUT_DONE.

◆ gvLayoutJobs()

int gvLayoutJobs	(	GVC_t *	gvc,
		graph_t *	g
	)

Definition at line 53 of file gvlayout.c.

References agbindrec(), agerrorf(), agget(), agroot(), gvlayout_engine_s::cleanup, gvplugin_active_layout_s::engine, gvplugin_active_layout_s::features, gvlayout_features_t::flags, GD_cleanup, GD_drawing, GD_gvc, graph_init(), gv_fixLocale(), gvc, gvlayout_select(), gvplugin_list(), GVC_s::layout, gvlayout_engine_s::layout, LAYOUT_USES_RANKDIR, NO_SUPPORT, and NULL.

Referenced by gvLayout(), and main().

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◆ gvNEWcontext()

GVC_t * gvNEWcontext	(	const lt_symlist_t *	builtins,
		int	demand_loading
	)

Definition at line 45 of file gvcontext.c.

References agerrorf(), GVCOMMON_s::builtins, GVC_s::common, GVCOMMON_s::demand_loading, GVCOMMON_s::errorfn, gv_alloc(), gvc, GVCOMMON_s::info, and LibInfo.

Referenced by gvContext(), and gvContextPlugins().

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◆ gvNextInputGraph()

graph_t * gvNextInputGraph ( GVC_t * gvc )

Definition at line 505 of file input.c.

References agerrorf(), agread(), agsetfile(), GVCOMMON_s::cmdname, GVC_s::common, GVC_s::fidx, graphviz_errors, gvc, gvg_init(), GVC_s::input_filenames, and NULL.

Referenced by main().

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◆ gvParseArgs()

int gvParseArgs	(	GVC_t *	gvc,
		int	argc,
		char **	argv
	)

Definition at line 220 of file args.c.

References config_extra_args(), dotneato_args_initialize(), fdp_extra_args(), gvc, gvplugin_write_status(), neato_extra_args(), and Verbose.

Referenced by main().

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◆ gvPluginList()

char ** gvPluginList	(	GVC_t *	gvc,
		const char *	kind,
		int *	sz
	)

Definition at line 417 of file gvplugin.c.

References agerrorf(), api_names, GVC_s::apis, ARRAY_SIZE, strview_t::data, gvc, kind, gvplugin_available_s::next, NULL, strview(), strview_case_eq(), strview_str(), and gvplugin_available_s::typestr.

Referenced by LoadPlugins().

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◆ gvPluginsGraph()

graph_t * gvPluginsGraph ( GVC_t * gvc )

Definition at line 206 of file input.c.

References gvc, gvg_init(), and P_graph.

Referenced by main().

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◆ gvRender()

int gvRender	(	GVC_t *	gvc,
		graph_t *	g,
		const char *	format,
		FILE *	out
	)

Definition at line 84 of file gvc.c.

References agerrorf(), GVJ_s::flags, format, gvc, gvjobs_delete(), gvjobs_output_langname(), gvplugin_list(), gvrender_end_job(), gvrender_select(), gvRenderJobs(), GVC_s::job, LAYOUT_DONE, LAYOUT_NOT_REQUIRED, NULL, out(), GVJ_s::output_file, GVJ_s::output_lang, GVJ_s::output_langname, and OUTPUT_NOT_REQUIRED.

Referenced by graphcmd(), json_begin_graph(), main(), main(), main(), render(), render(), renderchannel(), renderresult(), and renderresult().

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◆ gvRenderContext()

int gvRenderContext	(	GVC_t *	gvc,
		graph_t *	g,
		const char *	format,
		void *	context
	)

Definition at line 143 of file gvc.c.

References agerrorf(), GVJ_s::context, GVJ_s::external_context, GVJ_s::flags, format, gvc, gvdevice_finalize(), gvjobs_delete(), gvjobs_output_langname(), gvplugin_list(), gvrender_end_job(), gvrender_select(), gvRenderJobs(), GVC_s::job, LAYOUT_DONE, LAYOUT_NOT_REQUIRED, GVJ_s::output_lang, and GVJ_s::output_langname.

Referenced by graphcmd().

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◆ gvRenderData()

int gvRenderData	(	GVC_t *	gvc,
		graph_t *	g,
		const char *	format,
		char **	result,
		unsigned int *	length
	)

Definition at line 175 of file gvc.c.

References agerrorf(), GVJ_s::flags, format, gvc, gvjobs_delete(), gvjobs_output_langname(), gvplugin_list(), gvrender_end_job(), gvrender_select(), gvRenderJobs(), GVC_s::job, LAYOUT_DONE, LAYOUT_NOT_REQUIRED, malloc(), GVJ_s::output_data, GVJ_s::output_data_allocated, OUTPUT_DATA_INITIAL_ALLOCATION, GVJ_s::output_data_position, GVJ_s::output_lang, and GVJ_s::output_langname.

Referenced by renderdata().

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◆ gvRenderFilename()

int gvRenderFilename	(	GVC_t *	gvc,
		graph_t *	g,
		const char *	format,
		const char *	filename
	)

Definition at line 114 of file gvc.c.

◆ gvRenderJobs()

int gvRenderJobs	(	GVC_t *	gvc,
		graph_t *	g
	)

Definition at line 3912 of file emit.c.

References GVC_s::active_jobs, agerrorf(), GVJ_s::callbacks, chkOrder(), GVC_s::common, GVJ_s::common, emit_graph(), EMIT_SORTED, FINISH, GVJ_s::flags, GD_drawing, GVG_s::graph_index, GVJ_s::graph_index, gv_fixLocale(), gvc, gvdevice_callbacks, GVDEVICE_DOES_PAGES, GVDEVICE_EVENTS, gvevent_key_binding, gvevent_key_binding_size, GVC_s::gvg, gvjobs_first(), gvjobs_next(), gvrender_begin_job(), gvrender_end_job(), gvrender_select(), init_bb(), init_gvc(), init_job_dpi(), init_job_margin(), init_job_pad(), init_job_pagination(), init_job_viewport(), init_layering(), GVG_s::input_filename, GVJ_s::input_filename, GVJ_s::keybindings, GVC_s::layout, LAYOUT_DONE, GVJ_s::layout_type, GVJ_s::next_active, NO_SUPPORT, NULL, GVJ_s::numkeys, GVJ_s::output_file, GVJ_s::output_lang, GVJ_s::output_langname, Show_boxes, GVCOMMON_s::show_boxes, start_timer(), gvplugin_active_layout_s::type, Verbose, GVCOMMON_s::viewNum, and VTX.

Referenced by gvRender(), gvRenderContext(), gvRenderData(), gvRenderFilename(), and main().

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◆ gvToggle()

void gvToggle ( int s )

Definition at line 402 of file utils.c.

References gvToggle(), and Tflag.

Referenced by gvToggle(), and main().

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◆ gvToolTred()

int gvToolTred ( graph_t * g )

Perform a Transitive Reduction on a graph

Parameters

g	graph to be transformed.

Definition at line 70 of file gvtool_tred.c.

References agclean(), agfstnode(), aginit(), agisdirected(), agnameof(), AGNODE, agnxtnode(), dfs(), and NULL.

Referenced by tred().

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Files

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ LAYOUT_DONE

Function Documentation

◆ attach_attrs()

◆ gvAddLibrary()

◆ gvcBuildDate()

◆ gvcInfo()

◆ gvContext()

◆ gvContextPlugins()

◆ gvcVersion()

◆ gvFinalize()

◆ gvFreeContext()

◆ gvFreeLayout()

◆ gvFreeRenderData()

◆ gvLayout()

◆ gvLayoutDone()

◆ gvLayoutJobs()

◆ gvNEWcontext()

◆ gvNextInputGraph()

◆ gvParseArgs()

◆ gvPluginList()

◆ gvPluginsGraph()

◆ gvRender()

◆ gvRenderContext()

◆ gvRenderData()

◆ gvRenderFilename()

◆ gvRenderJobs()

◆ gvToggle()

◆ gvToolTred()