nheko/include/ImageItem.h

/*
 * nheko Copyright (C) 2017  Konstantinos Sideris <siderisk@auth.gr>
 *
 * This program is free 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
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include <QEvent>
#include <QMouseEvent>
#include <QSharedPointer>
#include <QWidget>

#include "Image.h"
#include "MatrixClient.h"

namespace events = matrix::events;
namespace msgs   = matrix::events::messages;

class ImageItem : public QWidget
{
        Q_OBJECT
public:
        ImageItem(QSharedPointer<MatrixClient> client,
                  const events::MessageEvent<msgs::Image> &event,
                  QWidget *parent = nullptr);

        ImageItem(QSharedPointer<MatrixClient> client,
                  const QString &url,
                  const QString &filename,
                  QWidget *parent = nullptr);

        void setImage(const QPixmap &image);

        QSize sizeHint() const override;

protected:
        void paintEvent(QPaintEvent *event) override;
        void mousePressEvent(QMouseEvent *event) override;
        void resizeEvent(QResizeEvent *event) override;

private slots:
        void imageDownloaded(const QString &event_id, const QPixmap &img);

private:
        void scaleImage();
        void openUrl();

        int max_width_  = 500;
        int max_height_ = 300;

        int width_;
        int height_;

        QPixmap scaled_image_;
        QPixmap image_;

        QUrl url_;
        QString text_;

        int bottom_height_ = 30;

        events::MessageEvent<msgs::Image> event_;

        QSharedPointer<MatrixClient> client_;
};