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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef SEEN_SP_MASK_H
#define SEEN_SP_MASK_H
/*
* SVG <mask> implementation
*
* Authors:
* Lauris Kaplinski <lauris@kaplinski.com>
* Abhishek Sharma
*
* Copyright (C) 2003 authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <memory>
#include <vector>
#include <2geom/rect.h>
#include "sp-object-group.h"
#include "uri-references.h"
#include "display/drawing-item-ptr.h"
#include "xml/node.h"
namespace Inkscape {
class Drawing;
class DrawingItem;
class DrawingGroup;
} // namespace Inkscape
class SPMask final
: public SPObjectGroup
{
public:
SPMask();
~SPMask() override;
int tag() const override { return tag_of<decltype(*this)>; }
bool mask_content_units() const { return maskContentUnits; }
// Fixme: Hack used by cairo-renderer.
Geom::OptRect get_last_bbox() const { return views.back().bbox; }
static char const *create(std::vector<Inkscape::XML::Node*> &reprs, SPDocument *document);
Inkscape::DrawingItem *show(Inkscape::Drawing &drawing, unsigned key, Geom::OptRect const &bbox);
void hide(unsigned key);
void setBBox(unsigned key, Geom::OptRect const &bbox);
Geom::OptRect geometricBounds(Geom::Affine const &transform) const;
Geom::OptRect visualBounds(Geom::Affine const &transform) const;
protected:
void build(SPDocument *doc, Inkscape::XML::Node *repr) override;
void release() override;
void set(SPAttr key, char const *value) override;
void update(SPCtx *ctx, unsigned flags) override;
void modified(unsigned flags) override;
Inkscape::XML::Node *write(Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, unsigned flags) override;
void child_added(Inkscape::XML::Node *child, Inkscape::XML::Node *ref) override;
private:
bool maskUnits_set : 1;
bool maskUnits : 1;
bool maskContentUnits_set : 1;
bool maskContentUnits : 1;
struct View
{
DrawingItemPtr<Inkscape::DrawingGroup> drawingitem;
Geom::OptRect bbox;
unsigned key;
View(DrawingItemPtr<Inkscape::DrawingGroup> drawingitem, Geom::OptRect const &bbox, unsigned key);
};
std::vector<View> views;
void update_view(View &v);
};
class SPMaskReference
: public Inkscape::URIReference
{
public:
SPMaskReference(SPObject *obj)
: URIReference(obj) {}
SPMask *getObject() const
{
return static_cast<SPMask*>(URIReference::getObject());
}
sigc::connection modified_connection;
protected:
/**
* If the owner element of this reference (the element with <... mask="...">)
* is a child of the mask it refers to, return false.
* \return false if obj is not a mask or if obj is a parent of this
* reference's owner element. True otherwise.
*/
bool _acceptObject(SPObject *obj) const override;
};
#endif // SEEN_SP_MASK_H
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