#define ARRAY_SIZE(A) (sizeof(A)/sizeof(A[0]))
- typedef enum { PEN_NONE, PEN_DASHED, PEN_DOTTED, PEN_SOLID } pen_type;
- typedef enum { FILL_NONE, FILL_SOLID } fill_type;
- typedef enum { FONT_REGULAR, FONT_BOLD, FONT_ITALIC } font_type;
-#define PENWIDTH_NORMAL 1.
-#define PENWIDTH_BOLD 2.
-
- typedef struct {
- char *fontfam, fontopt;
- color_t pencolor, fillcolor;
- pen_type pen;
- fill_type fill;
- double penwidth;
- double fontsz;
- } gvstyle_t;
-
-#define EMIT_SORTED (1<<0)
-#define EMIT_COLORS (1<<1)
-#define EMIT_CLUSTERS_LAST (1<<2)
-#define EMIT_PREORDER (1<<3)
-#define EMIT_EDGE_SORTED (1<<4)
-#define GVRENDER_DOES_ARROWS (1<<5)
-#define GVRENDER_DOES_LAYERS (1<<6)
-#define GVRENDER_DOES_MULTIGRAPH_OUTPUT_FILES (1<<7)
-#define GVRENDER_DOES_TRUECOLOR (1<<8)
-#define GVRENDER_Y_GOES_DOWN (1<<9)
-#define GVRENDER_X11_EVENTS (1<<10)
-#define GVRENDER_DOES_TRANSFORM (1<<11)
-
- typedef struct {
- int flags;
- double default_margin; /* graph units */
- int default_dpi;
- char **knowncolors;
- int sz_knowncolors;
- color_type_t color_type;
- char *device;
- } gvrender_features_t;
-
- typedef struct {
- int flags;
- } gvdevice_features_t;
-
-#define LAYOUT_USES_RANKDIR (1<<0)
-
typedef struct {
int flags;
} gvlayout_features_t;
/* active plugin headers */
- typedef struct gvplugin_active_device_s {
- gvdevice_engine_t *engine;
- int id;
- gvdevice_features_t *features;
- } gvplugin_active_device_t;
-
typedef struct gvplugin_active_layout_s {
gvlayout_engine_t *engine;
int id;
char *type;
} gvplugin_active_layout_t;
- typedef struct gvplugin_active_render_s {
- gvrender_engine_t *engine;
- int id;
- gvrender_features_t *features;
- char *type;
- } gvplugin_active_render_t;
-
typedef struct gvplugin_active_textlayout_s {
gvtextlayout_engine_t *engine;
int id;
char *type;
} gvplugin_active_usershape_t;
- /*
- * gv_matrix_t: (compat with cairo_matrix_t)
- *
- * A #gv_matrix_t holds an affine transformation, such as a scale,
- * rotation, or shear, or a combination of those.
- */
- typedef struct gv_matrix_s {
- double xx; double yx;
- double xy; double yy;
- double x0; double y0;
- } gv_matrix_t;
-
- typedef struct gv_argvlist_s {
- char **argv;
- int argc;
- int alloc;
- } gv_argvlist_t;
-
- typedef struct gvdevice_callbacks_s {
- void (*refresh) (GVJ_t * job);
- void (*button_press) (GVJ_t * job, int button, pointf pointer);
- void (*button_release) (GVJ_t * job, int button, pointf pointer);
- void (*motion) (GVJ_t * job, pointf pointer);
- void (*modify) (GVJ_t * job, char *name, char *value);
- } gvdevice_callbacks_t;
-
- struct GVJ_s {
- GVJ_t *next; /* linked list of jobs */
- GVJ_t *next_active; /* linked list of active jobs (e.g. multiple windows) */
- char *output_filename;
- char *output_langname;
- FILE *output_file;
- int output_lang;
-
- gvplugin_active_render_t render;
- gvplugin_active_device_t device;
- gvdevice_callbacks_t *callbacks;
-
-#ifndef DISABLE_CODEGENS
- codegen_t *codegen; /* current codegen */
-#endif
-
- void *surface; /* gd or cairo surface */
- bool external_surface; /* surface belongs to caller */
-
- gvstyle_t *style; /* active style from gvc->styles[] */
-
- GVC_t *gvc; /* parent gvc */
- graph_t *g; /* parent graph */
-
- /* current graph object during rendering
- - only valid between gvrender_begin_xxx() and gvrender_end_xxx() */
- graph_t *sg; /* current graph or subgraph/cluster */
- node_t *n; /* current node */
- edge_t *e; /* current edge */
-
- int flags; /* emit_graph flags */
-
- pointf margin; /* job-specific margin - graph units */
-
- int numLayers; /* number of layers */
- int layerNum; /* current layer - 1 based*/
-
- boxf pageBox; /* current page in graph coords */
- pointf pageOffset; /* offset for current page in graph coords */
- pointf pageSize; /* page size in graph units */
- point pagesArraySize; /* 2D size of page array */
- point pagesArrayFirst; /* 2D starting corner in */
- point pagesArrayMajor; /* 2D major increment */
- point pagesArrayMinor; /* 2D minor increment */
- point pagesArrayElem; /* 2D coord of current page - 0,0 based */
- int numPages; /* number of pages */
-
- unsigned int width; /* device width in device units */
- unsigned int height; /* device height in device units */
- int dpi; /* device resolution device-units-per-inch */
- double zoom; /* viewport zoom factor */
- int rotation; /* viewport rotation 0=portrait, 1=landscape */
- pointf focus; /* viewport focus in graph units */
- box boundingBox; /* drawable region in device units */
-
- boxf clip; /* clip region in graph units */
- boxf pageBoxClip; /* intersection of clip and pageBox */
-
- gv_matrix_t transform; /* transformation matrix for renderers that can use it */
- pointf compscale; /* composite device scale incl: scale, zoom, dpi, y_goes_down */
- pointf offset; /* composite translation */
-
- bool fit_mode,
- needs_refresh,
- click,
- active,
- has_grown;
-
- pointf pointer; /* pointer position in device units */
- pointf oldpointer; /* old pointer position in device units */
-
- void *current_obj; /* graph object that pointer is in currently */
-
- void *selected_obj; /* graph object that has been selected */
- /* (e.g. button 1 clicked on current obj) */
- char *active_tooltip; /* tooltip of active object - or NULL */
- char *selected_href; /* href of selected object - or NULL */
- gv_argvlist_t selected_obj_type_name; /* (e.g. "edge" "node3" "e" "->" "node5" "") */
- gv_argvlist_t selected_obj_attributes; /* even args are names, odd are values */
- /* e.g. "color" "red" "style" "filled" */
-
- void *window; /* display-specific data for gvrender plugin */
- };
-
typedef struct gvplugin_available_s gvplugin_available_t;
struct gvplugin_available_s {
or NULL if not yet loaded */
};
- typedef int (*gvevent_key_callback_t) (GVJ_t * job);
-
- typedef struct gvevent_key_binding_s {
- char *keystring;
- gvevent_key_callback_t callback;
- } gvevent_key_binding_t;
-
#define MAXNEST 4
struct GVC_s {
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