#ifndef SEEN_INKSCAPE_DISPLAY_DRAWING_H

#define SEEN_INKSCAPE_DISPLAY_DRAWING_H

#include <2geom/rect.h>

#include <boost/operators.hpp>

#include <boost/utility.hpp>

#include <set>

#include <sigc++/sigc++.h>

#include "display/drawing-item.h"

#include "display/rendermode.h"

#include "nr-filter-colormatrix.h"

typedef struct _SPCanvasArena SPCanvasArena;

typedef unsigned int guint32;

namespace Inkscape {

class DrawingItem;

class Drawing

: boost::noncopyable

{

public:

struct OutlineColors {

guint32 paths;

guint32 clippaths;

guint32 masks;

guint32 images;

};

Drawing(SPCanvasArena *arena = NULL);

~Drawing();

DrawingItem *root() { return _root; }

SPCanvasArena *arena() { return _canvasarena; }

void setRoot(DrawingItem *item);

RenderMode renderMode() const;

ColorMode colorMode() const;

bool outline() const;

bool renderFilters() const;

int blurQuality() const;

int filterQuality() const;

void setRenderMode(RenderMode mode);

void setColorMode(ColorMode mode);

void setBlurQuality(int q);

void setFilterQuality(int q);

void setExact(bool e);

Geom::OptIntRect const &cacheLimit() const;

void setCacheLimit(Geom::OptIntRect const &r);

void setCacheBudget(size_t bytes);

OutlineColors const &colors() const { return _colors; }

void setGrayscaleMatrix(double value_matrix[20]);

void update(Geom::IntRect const &area = Geom::IntRect::infinite(), UpdateContext const &ctx = UpdateContext(), unsigned flags = DrawingItem::STATE_ALL, unsigned reset = 0);

void render(DrawingContext &dc, Geom::IntRect const &area, unsigned flags = 0);

DrawingItem *pick(Geom::Point const &p, double delta, unsigned flags);

sigc::signal<void, DrawingItem *> signal_request_update;

sigc::signal<void, Geom::IntRect const &> signal_request_render;

sigc::signal<void, DrawingItem *> signal_item_deleted;

private:

void _pickItemsForCaching();

typedef std::list<CacheRecord> CandidateList;

DrawingItem *_root;

std::set<DrawingItem *> _cached_items; // modified by DrawingItem::setCached()

CacheList _candidate_items;

public:

// TODO: remove these temporarily public members

guint32 outlinecolor;

double delta;

private:

bool _exact; // if true then rendering must be exact

RenderMode _rendermode;

ColorMode _colormode;

int _blur_quality;

int _filter_quality;

Geom::OptIntRect _cache_limit;

double _cache_score_threshold; ///< do not consider objects for caching below this score

size_t _cache_budget; ///< maximum allowed size of cache

OutlineColors _colors;

Filters::FilterColorMatrix::ColorMatrixMatrix _grayscale_colormatrix;

SPCanvasArena *_canvasarena; // may be NULL if this arena is not the screen

// but used for export etc.

friend class DrawingItem;

};

} // end namespace Inkscape

#endif // !SEEN_INKSCAPE_DRAWING_H