goc_canvas_c2w ()

void
goc_canvas_c2w (GocCanvas *canvas,
                double x,
                double y,
                int *x_,
                int *y_);

Retrieves the position in the widget given the canvas coordinates.

goc_canvas_get_bounds ()

void
goc_canvas_get_bounds (GocCanvas *canvas,
                       double *x0,
                       double *y0,
                       double *x1,
                       double *y1);

goc_canvas_get_cur_event ()

GdkEvent *
goc_canvas_get_cur_event (GocCanvas *canvas);

goc_canvas_get_direction ()

GocDirection
goc_canvas_get_direction (GocCanvas *canvas);

goc_canvas_get_document ()

GODoc *
goc_canvas_get_document (GocCanvas *canvas);

goc_canvas_get_grabbed_item ()

GocItem *
goc_canvas_get_grabbed_item (GocCanvas *canvas);

goc_canvas_get_height ()

int
goc_canvas_get_height (GocCanvas *canvas);

goc_canvas_get_item_at ()

GocItem *
goc_canvas_get_item_at (GocCanvas *canvas,
                        double x,
                        double y);

goc_canvas_get_pixels_per_unit ()

double
goc_canvas_get_pixels_per_unit (GocCanvas *canvas);

goc_canvas_get_realized ()

gboolean
goc_canvas_get_realized (GocCanvas *canvas);

goc_canvas_get_root ()

GocGroup *
goc_canvas_get_root (GocCanvas *canvas);

goc_canvas_get_scroll_position ()

void
goc_canvas_get_scroll_position (GocCanvas *canvas,
                                double *x,
                                double *y);

Retrieves the origin of the visible region of the canvas.

goc_canvas_get_width ()

int
goc_canvas_get_width (GocCanvas *canvas);

goc_canvas_grab_item ()

void
goc_canvas_grab_item (GocCanvas *canvas,
                      GocItem *item);

Grabs GocItem. All subsequent events will be passed to GocItem. This function fails if an item is already grabbed.

goc_canvas_invalidate ()

void
goc_canvas_invalidate (GocCanvas *canvas,
                       double x0,
                       double y0,
                       double x1,
                       double y1);

Invalidates a region of the canvas. The canvas will be redrawn only if the invalidated region intersects the visible area.

goc_canvas_invalidate_region ()

void
goc_canvas_invalidate_region (GocCanvas *canvas,
                              GocItem *item,
                              cairo_region_t *region);

Invalidates a region of the canvas. Only item will be redrawn if the next draw event is called with a cairo contest clipped to region . Used in gnumeric for the walking ants cursor.

goc_canvas_render ()

void
goc_canvas_render (GocCanvas *canvas,
                   cairo_t *cr,
                   double x0,
                   double y0,
                   double x1,
                   double y1);

goc_canvas_scroll_to ()

void
goc_canvas_scroll_to (GocCanvas *canvas,
                      double x,
                      double y);

Scrolls the canvas so that the origin of the visible region is at (x ,y ). The origin position depends on the canvas direction (see GocDirection).

goc_canvas_set_direction ()

void
goc_canvas_set_direction (GocCanvas *canvas,
                          GocDirection direction);

Sets the direction used by the canvas.

goc_canvas_set_document ()

void
goc_canvas_set_document (GocCanvas *canvas,
                         GODoc *document);

Associates the GODoc with the GocCanvas. This is needed to use images when filling styled items (see GocStyledItem).

goc_canvas_set_pixels_per_unit ()

void
goc_canvas_set_pixels_per_unit (GocCanvas *canvas,
                                double pixels_per_unit);

Sets the scale as the number of pixels used for each unit when displaying the canvas.

goc_canvas_ungrab_item ()

void
goc_canvas_ungrab_item (GocCanvas *canvas);

Ungrabs the currently grabbed GocItem. This function fails if no item is grabbed.

goc_canvas_w2c ()

void
goc_canvas_w2c (GocCanvas *canvas,
                int x,
                int y,
                double *x_,
                double *y_);

Retrieves the canvas coordinates given the position in the widget.

GocCanvas

typedef struct _GocCanvas GocCanvas;

GocCanvasClass

typedef GtkLayoutClass GocCanvasClass;

enum GocDirection