sp-mask.h

Go to the documentation of this file.

// 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 "object-view.h"
#include "sp-object-group.h"
#include "uri-references.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;
 
    using View = ObjectView<Inkscape::DrawingGroup>;
    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:
    bool _acceptObject(SPObject *obj) const override;
};
 
#endif // SEEN_SP_MASK_H