fileslistmodel.h

#ifndef FILESLISTMODEL_H
#define FILESLISTMODEL_H

#include <QtCore/QAbstractItemModel>
#include <QtCore/QStringList>
#include "core/config.h"

/**
 * Represents a single line from «Files» config section
 * for storing in a flat list (not a map), see FLNodeGroup.
 *
 * When initializing model, it converts ConfigArchsSet to list of groups of nodes,
 * and then configArchsSet() can convert it back.
 */
struct FLNode {
    QString target;
    bool symlinking;
    QString source;
    FLNode(QString target, bool symlinking, QString source):
        target(target), symlinking(symlinking), source(source) {}
};

/**
 * A group of nodes for a single architecture.
 *
 * Groups are the top level of the tree. Each group contains flat list of nodes.
 */
struct FLNodeGroup {
    QString arch;
    QList<FLNode> nodes;
    FLNodeGroup(QString arch, QList<FLNode> nodes):
        arch(arch), nodes(nodes) {}
};

/**
 * Internal pointer for assigning to QModelIndex.
 *
 * Stores index of architecture node group and index of node in it.
 * To store pointer to the whole group, set \c fileIndex to \c -1.
 */
struct FLNodePointer {
    int archIndex;
    int fileIndex;
    FLNodePointer(int archIndex, int fileIndex=-1):
        archIndex(archIndex), fileIndex(fileIndex) {}
};


class FilesListModel : public QAbstractItemModel
{
public:
    static const int COLUMN_TARGET = 0;
    static const int COLUMN_SOURCE = 1;
    static const int COLUMNS_COUNT = 2;

private:
    QList<FLNodeGroup> _data;

public:
    FilesListModel(ConfigArchsSet set);
    ConfigArchsSet configArchsSet();

    virtual QModelIndex   index(int row, int column, const QModelIndex& parent=QModelIndex()) const;
    virtual QModelIndex   parent(const QModelIndex &child) const;
    virtual int           rowCount(const QModelIndex &parent = QModelIndex()) const;
    virtual int           columnCount(const QModelIndex &parent = QModelIndex()) const;
    virtual QVariant      data(const QModelIndex &index, int role = Qt::DisplayRole) const;
//  virtual bool          setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole);
//  virtual Qt::ItemFlags flags(const QModelIndex& index) const;
//  virtual bool          removeRows(int row, int count, const QModelIndex& parent = QModelIndex());
};

#endif // FILESLISTMODEL_H