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GOMarker

GOMarker

Synopsis

                    GOMarker;
#define             GO_TYPE_MARKER
#define             GO_MARKER                           (o)
#define             GO_IS_MARKER                        (o)
enum                GOMarkerShape;
GOMarker *          go_marker_new                       (void);
GOMarker *          go_marker_dup                       (GOMarker const *src);
void                go_marker_assign                    (GOMarker *dst,
                                                         GOMarker const *src);
GType               go_marker_get_type                  (void);
GOMarkerShape       go_marker_shape_from_str            (char const *name);
char const      *   go_marker_shape_as_str              (GOMarkerShape shape);
GOMarkerShape       go_marker_get_shape                 (GOMarker const *m);
void                go_marker_set_shape                 (GOMarker *m,
                                                         GOMarkerShape shape);
GOColor             go_marker_get_outline_color         (GOMarker const *m);
void                go_marker_set_outline_color         (GOMarker *m,
                                                         GOColor color);
GOColor             go_marker_get_fill_color            (GOMarker const *m);
void                go_marker_set_fill_color            (GOMarker *m,
                                                         GOColor color);
int                 go_marker_get_size                  (GOMarker const *m);
void                go_marker_set_size                  (GOMarker *m,
                                                         int size);
double              go_marker_get_outline_width         (GOMarker const *m);
cairo_surface_t *   go_marker_create_cairo_surface      (GOMarker const *marker,
                                                         cairo_t *cr,
                                                         double scale,
                                                         double *width,
                                                         double *height);
void                go_marker_render                    (GOMarker const *marker,
                                                         cairo_t *cr,
                                                         double x,
                                                         double y,
                                                         double scale);
GtkWidget *         go_marker_selector_new              (GOMarkerShape initial_shape,
                                                         GOMarkerShape default_shape);
void                go_marker_selector_set_colors       (GOSelector *selector,
                                                         GOColor outline,
                                                         GOColor fill);
void                go_marker_selector_set_shape        (GOSelector *selector,
                                                         GOMarkerShape shape);

Object Hierarchy

  GObject
   +----GOMarker

Description

Details

GOMarker

typedef struct _GOMarker GOMarker;


GO_TYPE_MARKER

#define GO_TYPE_MARKER	  	(go_marker_get_type ())


GO_MARKER()

#define GO_MARKER(o)		(G_TYPE_CHECK_INSTANCE_CAST((o), GO_TYPE_MARKER, GOMarker))

o :


GO_IS_MARKER()

#define GO_IS_MARKER(o)		(G_TYPE_CHECK_INSTANCE_TYPE((o), GO_TYPE_MARKER))

o :


enum GOMarkerShape

typedef enum {
	GO_MARKER_NONE,
	GO_MARKER_SQUARE,
	GO_MARKER_DIAMOND,
	GO_MARKER_TRIANGLE_DOWN,
	GO_MARKER_TRIANGLE_UP,
	GO_MARKER_TRIANGLE_RIGHT,
	GO_MARKER_TRIANGLE_LEFT,
	GO_MARKER_CIRCLE,
	GO_MARKER_X,
	GO_MARKER_CROSS,
	GO_MARKER_ASTERISK,
	GO_MARKER_BAR,
	GO_MARKER_HALF_BAR,
	GO_MARKER_BUTTERFLY,
	GO_MARKER_HOURGLASS,
	GO_MARKER_LEFT_HALF_BAR,
	GO_MARKER_MAX
} GOMarkerShape;


go_marker_new ()

GOMarker *          go_marker_new                       (void);

Returns :


go_marker_dup ()

GOMarker *          go_marker_dup                       (GOMarker const *src);

src :

Returns :


go_marker_assign ()

void                go_marker_assign                    (GOMarker *dst,
                                                         GOMarker const *src);

dst :

src :


go_marker_get_type ()

GType               go_marker_get_type                  (void);

Returns :


go_marker_shape_from_str ()

GOMarkerShape       go_marker_shape_from_str            (char const *name);

name :

Returns :


go_marker_shape_as_str ()

char const      *   go_marker_shape_as_str              (GOMarkerShape shape);

shape :

Returns :


go_marker_get_shape ()

GOMarkerShape       go_marker_get_shape                 (GOMarker const *m);

m :

Returns :


go_marker_set_shape ()

void                go_marker_set_shape                 (GOMarker *m,
                                                         GOMarkerShape shape);

m :

shape :


go_marker_get_outline_color ()

GOColor             go_marker_get_outline_color         (GOMarker const *m);

m :

Returns :


go_marker_set_outline_color ()

void                go_marker_set_outline_color         (GOMarker *m,
                                                         GOColor color);

m :

color :


go_marker_get_fill_color ()

GOColor             go_marker_get_fill_color            (GOMarker const *m);

m :

Returns :


go_marker_set_fill_color ()

void                go_marker_set_fill_color            (GOMarker *m,
                                                         GOColor color);

m :

color :


go_marker_get_size ()

int                 go_marker_get_size                  (GOMarker const *m);

m :

Returns :


go_marker_set_size ()

void                go_marker_set_size                  (GOMarker *m,
                                                         int size);

m :

size :


go_marker_get_outline_width ()

double              go_marker_get_outline_width         (GOMarker const *m);

m :

Returns :


go_marker_create_cairo_surface ()

cairo_surface_t *   go_marker_create_cairo_surface      (GOMarker const *marker,
                                                         cairo_t *cr,
                                                         double scale,
                                                         double *width,
                                                         double *height);

Creates a new cairo surface similar to the current target of cr, and render marker on it. center will contain the coordinate of the center of the surface.

marker :

a GOMarker

cr :

a cairo context

scale :

current context scale

width :

a placeholder for the surface width

height :

a placeholder for the surface height

Returns :

a newly created cairo_surface_t. This surface should be destroyed using cairo_surface_destroy after use.

go_marker_render ()

void                go_marker_render                    (GOMarker const *marker,
                                                         cairo_t *cr,
                                                         double x,
                                                         double y,
                                                         double scale);

Renders marker onto the cairo target, using x and y for the position.

marker :

a GOMarker

cr :

a cairo context

x :

x position

y :

y position

scale :

current scale

go_marker_selector_new ()

GtkWidget *         go_marker_selector_new              (GOMarkerShape initial_shape,
                                                         GOMarkerShape default_shape);

Creates a new marker selector.

initial_shape :

marker shape intially selected

default_shape :

automatic marker shape

Returns :

a new GtkWidget.

go_marker_selector_set_colors ()

void                go_marker_selector_set_colors       (GOSelector *selector,
                                                         GOColor outline,
                                                         GOColor fill);

Updates swatch colors of selector.

selector :

a GOSelector

outline :

outline color

fill :

fill color

go_marker_selector_set_shape ()

void                go_marker_selector_set_shape        (GOSelector *selector,
                                                         GOMarkerShape shape);

Updates marker shape of selector.

selector :

a GOSelector

shape :

new marker shape
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