AssetModel.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 ASSET_MODEL_H
#define ASSET_MODEL_H
 
#include <QAbstractItemModel>
#include <QVector>
#include <QSortFilterProxyModel>
 
#include <map>
#include <tuple>
#include <utility>
 
#include "assets/AssetWrapper.h"
 
class AssetModel : public QAbstractItemModel {
    Q_OBJECT
public:
    AssetModel(AssetWrapper *assets, QObject *parent);
    virtual ~AssetModel();
 
    virtual int columnCount(const QModelIndex& parent) const override;
    virtual QModelIndex index(int row, int column, const QModelIndex& parent) const override;
    virtual QModelIndex parent(const QModelIndex& index) const override;
    virtual int rowCount(const QModelIndex & parent) const override;
    virtual QVariant data(const QModelIndex& index, int role) const override;
    virtual QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
    virtual Qt::ItemFlags flags(const QModelIndex& index) const override;
    //  virtual bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole) override;
    //  virtual bool removeRows(int row, int count, const QModelIndex& parent = QModelIndex()) override;
    virtual QMimeData *mimeData(const QModelIndexList &indexes) const override;
    virtual bool canDropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const override;
    virtual bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
 
protected slots:
    void assetModified(AssetWrapper *asset, AssetWrapper::ChangeType type, int extra);
 
private:
    AssetWrapper * myAssets;
};
 
class UseFilterAssetModel : public QSortFilterProxyModel {
public:
    UseFilterAssetModel(QObject *parent);
 
    void setFilter(AssetWrapper *asset);
    virtual QVariant data(const QModelIndex& index, int role) const override;
 
protected:
    virtual bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;
 
    AssetWrapper *myAsset;
    mutable std::map<AssetWrapper *, bool> myCachedFilter;
    mutable std::map<AssetWrapper *, std::string> myCachedHints;
};
 
class QScriptEngine;
 
class ScriptFilterAssetModel : public QSortFilterProxyModel {
public:
    ScriptFilterAssetModel(AssetModel *model, QScriptEngine *engine, QObject *parent);
 
    void setFilter(const QString &filter);
    const QString& filter() const { return myFilter; }
 
protected:
    virtual bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;
    bool acceptItem(AssetWrapper *item) const;
 
    QScriptEngine *myEngine;
    QString myFilter;
    mutable std::map<AssetWrapper *, bool> myCachedFilter;
};
 
#endif /* ASSET_MODEL_H */