vlc/modules/gui/qt/widgets/native/roundimage.hpp

105 lines
2.9 KiB
C++

/*****************************************************************************
* roundimage.hpp: Custom widgets
****************************************************************************
* Copyright (C) 2021 the VideoLAN team
*
* Authors: Prince Gupta <guptaprince8832@gmail.com>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef VLC_QT_ROUNDIMAGE_HPP
#define VLC_QT_ROUNDIMAGE_HPP
#include <QImage>
#include <QQuickItem>
#include <QUrl>
#include <memory>
class QQuickImageResponse;
class RoundImageRequest;
class RoundImage : public QQuickItem
{
Q_OBJECT
// url of the image
Q_PROPERTY(QUrl source READ source WRITE setSource NOTIFY sourceChanged FINAL)
Q_PROPERTY(qreal radius READ radius WRITE setRadius NOTIFY radiusChanged FINAL)
Q_PROPERTY(Status status READ status NOTIFY statusChanged FINAL)
public:
enum Status
{
Null,
Ready,
Loading,
Error
};
Q_ENUM(Status)
RoundImage(QQuickItem *parent = nullptr);
~RoundImage();
void componentComplete() override;
QUrl source() const;
qreal radius() const;
Status status() const;
public slots:
void setSource(const QUrl& source);
void setRadius(qreal radius);
signals:
void sourceChanged(const QUrl&);
void radiusChanged(qreal);
void statusChanged();
protected:
void itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value) override;
QSGNode* updatePaintNode(QSGNode *oldNode, QQuickItem::UpdatePaintNodeData *) override;
private:
void setDPR(qreal value);
void handleImageResponseFinished();
void load();
void setRoundImage(QImage image);
void setStatus(const Status status);
void regenerateRoundImage();
private slots:
void adjustQSGCustomGeometry(const QQuickWindow* const window);
void onRequestCompleted(Status status, const QImage& image);
private:
Status m_status = Status::Null;
bool m_QSGCustomGeometry = false;
bool m_dirty = false;
bool m_enqueuedGeneration = false;
QUrl m_source;
qreal m_radius = 0.0;
qreal m_dpr = 1.0; // device pixel ratio
QImage m_roundImage;
std::shared_ptr<RoundImageRequest> m_activeImageResponse;
};
#endif