qTox/smileypack.h

/*
    Copyright (C) 2014 by Project Tox <https://tox.im>

    This file is part of qTox, a Qt-based graphical interface for Tox.

    This program is libre software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

    See the COPYING file for more details.
*/

#ifndef SMILEYPACK_H
#define SMILEYPACK_H

#include <QHash>
#include <QObject>
#include <QString>
#include <QStringList>

#define SMILEYPACK_DEFAULT_PATH "./smileys"

//maps emoticons to smileys
class SmileyPack : public QObject
{
    Q_OBJECT
public:
    static SmileyPack& getInstance();
    static QList<QPair<QString, QString>> listSmileyPacks(const QString& path = SMILEYPACK_DEFAULT_PATH);
    static bool isValid(const QString& filename);

    bool load(const QString &filename);
    QString smileyfied(QString msg);
    QList<QStringList> getEmoticons() const;
    QString getAsRichText(const QString& key);
    QIcon getAsIcon(const QString& key);

private slots:
    void onSmileyPackChanged();

private:
    SmileyPack();
    SmileyPack(SmileyPack&) = delete;
    SmileyPack& operator=(const SmileyPack&) = delete;

    void cacheSmiley(const QString& name);
    QByteArray getCachedSmiley(const QString& key);

    QHash<QString, QString> filenameTable; // matches an emoticon to its corresponding smiley ie. ":)" -> "happy.png"
    QHash<QString, QByteArray> imgCache; // (scaled) representation of a smiley ie. "happy.png" -> data
    QList<QStringList> emoticons; // {{ ":)", ":-)" }, {":(", ...}, ... }
    QString path; // directory containing the cfg and image files
};

#endif // SMILEYPACK_H