qt-everywhere-src-5.14.1/qt3d/src/quick3d/quick3dextras/items/quick3dspritesheet.cpp

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#include "quick3dspritesheet_p.h"
#include <Qt3DExtras/qspritesheetitem.h>

QT_BEGIN_NAMESPACE

namespace Qt3DExtras {
namespace Extras {
namespace Quick {

Quick3DSpriteSheet::Quick3DSpriteSheet(QObject *parent)
    : QObject(parent)
{
}

Quick3DSpriteSheet::~Quick3DSpriteSheet()
{
}

QQmlListProperty<Qt3DExtras::QSpriteSheetItem> Quick3DSpriteSheet::sprites()
{
    return QQmlListProperty<Qt3DExtras::QSpriteSheetItem>(this, 0,
                                                          &Quick3DSpriteSheet::appendSprite,
                                                          &Quick3DSpriteSheet::spriteCount,
                                                          &Quick3DSpriteSheet::spriteAt,
                                                          &Quick3DSpriteSheet::clearSprites);

}

void Quick3DSpriteSheet::appendSprite(QQmlListProperty<Qt3DExtras::QSpriteSheetItem> *list,
                                      Qt3DExtras::QSpriteSheetItem *sprite)
{
    Quick3DSpriteSheet *spritesheet = qobject_cast<Quick3DSpriteSheet *>(list->object);
    spritesheet->parentSpriteSheet()->addSprite(sprite);
}

Qt3DExtras::QSpriteSheetItem *Quick3DSpriteSheet::spriteAt(QQmlListProperty<Qt3DExtras::QSpriteSheetItem> *list, int index)
{
    Quick3DSpriteSheet *spritesheet = qobject_cast<Quick3DSpriteSheet *>(list->object);
    return spritesheet->parentSpriteSheet()->sprites().at(index);
}

int Quick3DSpriteSheet::spriteCount(QQmlListProperty<Qt3DExtras::QSpriteSheetItem> *list)
{
    Quick3DSpriteSheet *spritesheet = qobject_cast<Quick3DSpriteSheet *>(list->object);
    return spritesheet->parentSpriteSheet()->sprites().count();
}

void Quick3DSpriteSheet::clearSprites(QQmlListProperty<Qt3DExtras::QSpriteSheetItem> *list)
{
    Quick3DSpriteSheet *spritesheet = qobject_cast<Quick3DSpriteSheet *>(list->object);
    const auto sprites = spritesheet->parentSpriteSheet()->sprites();
    for (QSpriteSheetItem *sprite : sprites)
        spritesheet->parentSpriteSheet()->removeSprite(sprite);
}

} // namespace Quick
} // namespace Extras
} // namespace Qt3DExtras

QT_END_NAMESPACE