RandomMaps.h

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/*
 * Crossfire -- cooperative multi-player graphical RPG and adventure game
 *
 * Copyright (c) 2022 the Crossfire Development Team
 *
 * Crossfire is free software and comes with ABSOLUTELY NO WARRANTY. You are
 * welcome to redistribute it under certain conditions. For details, please
 * see COPYING and LICENSE.
 *
 * The authors can be reached via e-mail at <crossfire@metalforge.org>.
 */
 
#ifndef RANDOM_MAPS_H
#define RANDOM_MAPS_H
 
#include "assets/AssetWrapper.h"
#include "CREMapInformationManager.h"
#include "RandomMap.h"
 
class RandomMaps : public AssetWrapper {
    Q_OBJECT
public:
    RandomMaps(AssetWrapper *parent, CREMapInformationManager *maps) : AssetWrapper(parent), myMaps(maps), myNeedRefresh(false) {
        connect(maps, SIGNAL(mapAdded(CREMapInformation *)), this, SLOT(mapAdded(CREMapInformation *)));
        setProperty(tipProperty, tr("Display all random maps."));
    }
 
    virtual QString displayName() const override { return tr("Random maps"); }
 
    virtual int childrenCount() const override { refresh(); return myCache.size(); }
    virtual AssetWrapper *child(int child) override { refresh(); return myCache[child]; }
    virtual int childIndex(AssetWrapper *child) override { refresh(); return myCache.indexOf(static_cast<RandomMap *>(child)); }
 
protected slots:
    void mapAdded(CREMapInformation *map) {
        if (!map->randomMaps().empty()) {
            myNeedRefresh = true;
        }
    }
 
private:
    CREMapInformationManager *myMaps;
    mutable bool myNeedRefresh;
    mutable QList<RandomMap *> myCache;
 
    void refresh() const {
        if (myNeedRefresh) {
            myNeedRefresh = false;
            myCache = myMaps->randomMaps();
        }
    }
};
 
#endif /* RANDOM_MAPS_H */