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#ifndef __NR_ARENA_SHAPE_H__
#define __NR_ARENA_SHAPE_H__
/*
* RGBA display list system for inkscape
*
* Author:
* Lauris Kaplinski <lauris@kaplinski.com>
*
* Copyright (C) 2001-2002 Lauris Kaplinski
* Copyright (C) 2001 Ximian, Inc.
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#define NR_TYPE_ARENA_SHAPE (nr_arena_shape_get_type ())
#define NR_ARENA_SHAPE(obj) (NR_CHECK_INSTANCE_CAST ((obj), NR_TYPE_ARENA_SHAPE, NRArenaShape))
#define NR_IS_ARENA_SHAPE(obj) (NR_CHECK_INSTANCE_TYPE ((obj), NR_TYPE_ARENA_SHAPE))
#include "display/curve.h"
#include "display/canvas-bpath.h"
#include "forward.h"
#include "sp-paint-server.h"
#include "nr-arena-item.h"
#include "../color.h"
#include "../livarot/Shape.h"
NRType nr_arena_shape_get_type (void);
struct NRArenaShape : public NRArenaItem {
class Paint {
public:
enum Type {
NONE,
COLOR,
SERVER
};
Paint() : _type(NONE), _server(NULL) {
sp_color_set_rgb_rgba32(&_color, 0);
}
Paint(Paint const &p) { _assign(p); }
~Paint() { clear(); }
Type type() const { return _type; }
SPPaintServer *server() const { return _server; }
SPColor const &color() const { return _color; }
Paint &operator=(Paint const &p) {
set(p);
return *this;
}
void set(Paint const &p) {
clear();
_assign(p);
}
void set(SPColor const &color) {
clear();
_type = COLOR;
sp_color_copy(&_color, &color);
}
void set(SPPaintServer *server) {
clear();
if (server) {
_type = SERVER;
_server = server;
sp_object_ref(_server, NULL);
}
}
void clear() {
if ( _type == SERVER ) {
sp_object_unref(_server, NULL);
_server = NULL;
}
_type = NONE;
}
private:
Type _type;
SPColor _color;
SPPaintServer *_server;
void _assign(Paint const &p) {
_type = p._type;
_server = p._server;
sp_color_copy(&_color, &p._color);
if (_server) {
sp_object_ref(_server, NULL);
}
}
};
enum FillRule {
EVEN_ODD,
NONZERO
};
enum CapType {
ROUND_CAP,
SQUARE_CAP,
BUTT_CAP
};
enum JoinType {
ROUND_JOIN,
BEVEL_JOIN,
MITRE_JOIN
};
/* Shape data */
SPCurve *curve;
SPStyle *style;
NRRect paintbox;
/* State data */
NR::Matrix ctm;
SPPainter *fill_painter;
SPPainter *stroke_painter;
// the 2 cached polygons, for rasterizations uses
Shape *fill_shp;
Shape *stroke_shp;
// the stroke width of stroke_shp, to detect when it changes (on normal/outline switching) and rebuild
float cached_width;
// delayed_shp=true means the *_shp polygons are not computed yet
// they'll be computed on demand in *_render(), *_pick() or *_clip()
// the goal is to not uncross polygons that are outside the viewing region
bool delayed_shp;
// approximate bounding box, for the case when the polygons have been delayed
NRRectL approx_bbox;
// cache for transformations: cached_fill and cached_stroke are
// polygons computed for the cached_fctm and cache_sctm respectively
// when the transformation changes interactively (tracked by the
// SP_OBJECT_USER_MODIFIED_FLAG_B), we check if it's an isometry wrt
// the cached ctm. if it's an isometry, just apply it to the cached
// polygon to get the *_shp polygon. Otherwise, recompute so this
// works fine for translation and rotation, but not scaling and
// skewing
NR::Matrix cached_fctm;
NR::Matrix cached_sctm;
NRRectL cached_farea;
NRRectL cached_sarea;
bool cached_fpartialy;
bool cached_spartialy;
Shape *cached_fill;
Shape *cached_stroke;
/* Markers */
NRArenaItem *markers;
static NRArenaShape *create(NRArena *arena) {
NRArenaShape *obj=reinterpret_cast<NRArenaShape *>(nr_object_new(NR_TYPE_ARENA_SHAPE));
obj->init(arena);
return obj;
}
void setFill(SPPaintServer *server);
void setFill(SPColor const &color);
void setFillOpacity(double opacity);
void setFillRule(FillRule rule);
void setStroke(SPPaintServer *server);
void setStroke(SPColor const &color);
void setStrokeOpacity(double opacity);
void setStrokeWidth(double width);
void setLineCap(CapType cap);
void setLineJoin(JoinType join);
void setMitreLimit(double limit);
void setPaintBox(NR::Rect const &pbox);
void _invalidateCachedFill() {
if (cached_fill) {
delete cached_fill;
cached_fill = NULL;
}
}
void _invalidateCachedStroke() {
if (cached_stroke) {
delete cached_stroke;
cached_stroke = NULL;
}
}
struct Style {
Style() : opacity(0.0) {}
Paint paint;
double opacity;
};
struct FillStyle : public Style {
FillStyle() : rule(EVEN_ODD) {}
FillRule rule;
} _fill;
struct StrokeStyle : public Style {
StrokeStyle()
: cap(ROUND_CAP), join(ROUND_JOIN),
width(0.0), mitre_limit(0.0)
{}
CapType cap;
JoinType join;
double width;
double mitre_limit;
} _stroke;
};
struct NRArenaShapeClass {
NRArenaItemClass parent_class;
};
void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve, bool justTrans);
void nr_arena_shape_set_style (NRArenaShape *shape, SPStyle *style);
void nr_arena_shape_set_paintbox (NRArenaShape *shape, const NRRect *pbox);
#endif
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