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#ifndef SP_CANVAS_AXONOMGRID_H
#define SP_CANVAS_AXONOMGRID_H
/*
* SPCAxonomGrid
*
* Generic (and quite unintelligent) modified copy of the grid item for gnome canvas
*
* Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
* Copyright (C) 2000 Lauris Kaplinski 2000
*
*/
#include <display/sp-canvas.h>
#include <libnr/nr-coord.h>
#define SP_TYPE_CAXONOMGRID (sp_caxonomgrid_get_type ())
#define SP_CAXONOMGRID(obj) (GTK_CHECK_CAST ((obj), SP_TYPE_CAXONOMGRID, SPCAxonomGrid))
#define SP_CAXONOMGRID_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), SP_TYPE_CAXONOMGRID, SPCAxonomGridClass))
#define SP_IS_CAXONOMGRID(obj) (GTK_CHECK_TYPE ((obj), SP_TYPE_CAXONOMGRID))
#define SP_IS_CAXONOMGRID_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), SP_TYPE_CAXONOMGRID))
/** \brief All the variables that are tracked for a axonometric grid specific
canvas item. */
struct SPCAxonomGrid : public SPCanvasItem{
NR::Point origin; /**< Origin of the grid */
double lengthy; /**< The lengths of the primary y-axis */
double angle_deg[3]; /**< Angle of each axis (note that angle[2] == 0) */
double angle_rad[3]; /**< Angle of each axis (note that angle[2] == 0) */
double tan_angle[3]; /**< tan(angle[.]) */
guint32 color; /**< Color for normal lines */
guint32 empcolor; /**< Color for emphasis lines */
gint empspacing; /**< Spacing between emphasis lines */
bool scaled; /**< Whether the grid is in scaled mode */
NR::Point ow; /**< Transformed origin by the affine for the zoom */
double lyw; /**< Transformed length y by the affine for the zoom */
double lxw_x;
double lxw_z;
double spacing_ylines;
NR::Point sw; /**< the scaling factors of the affine transform */
};
struct SPCAxonomGridClass {
SPCanvasItemClass parent_class;
};
/* Standard Gtk function */
GtkType sp_caxonomgrid_get_type (void);
#endif
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