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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt for Device Creation.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef ENGINE_H
#define ENGINE_H
#include <QQuickItem>
#include <QUrl>
#include <QSize>
#include <QColor>
class QQmlEngine;
class FpsCounter;
class QQuickWindow;
class Engine : public QQuickItem
{
Q_OBJECT
Q_PROPERTY(QString state READ state WRITE setState NOTIFY stateChanged)
Q_PROPERTY(QUrl applicationMain READ applicationMain NOTIFY applicationMainChanged)
Q_PROPERTY(QString applicationName READ applicationName NOTIFY applicationNameChanged)
Q_PROPERTY(QString applicationDescription READ applicationDescription NOTIFY applicationDescriptionChanged)
Q_PROPERTY(bool fpsEnabled READ isFpsEnabled WRITE setFpsEnabled NOTIFY fpsEnabledChanged)
Q_PROPERTY(qreal fps READ fps NOTIFY fpsChanged)
Q_PROPERTY(const QString qtVersion READ qtVersion CONSTANT)
public:
explicit Engine(QQuickItem *parent = nullptr);
QString state() const { return m_state; }
void setState(const QString &state);
bool isFpsEnabled() const { return m_fps_enabled; }
void setFpsEnabled(bool enabled);
qreal fps() const { return m_fps; }
QString qtVersion() const { return QT_VERSION_STR; }
QUrl applicationMain() const { return m_applicationMain; }
QString applicationName() const { return m_applicationName; }
QString applicationDescription() const { return m_applicationDescription; }
static bool checkForGlAvailability();
Q_INVOKABLE int titleFontSize() const { return qMax<int>(m_dpcm * 0.9, 20); }
Q_INVOKABLE int centimeter(int val = 1) const { return (m_dpcm * val); }
Q_INVOKABLE int mm(int val) const { return (int)(m_dpcm * val * 0.1); }
protected:
signals:
void stateChanged(const QString &state);
void activeIconChanged(QQuickItem *item);
void applicationMainChanged(const QUrl &applicationMain);
void applicationNameChanged(const QString &applicationName);
void applicationDescriptionChanged(const QString &applicationName);
void fpsChanged(qreal fps);
void fpsEnabledChanged(bool enabled);
public slots:
void markApplicationsModelReady() { m_apps_ready = true; updateReadyness(); }
void markIntroAnimationDone() { m_intro_done = true; updateReadyness(); }
void launchApplication(const QUrl &location, const QString &mainFile, const QString &name, const QString &desc);
void closeApplication();
void setFps(qreal fps);
bool fileExists(const QUrl &fileName);
private slots:
void windowChanged(QQuickWindow *window);
private:
void updateReadyness();
void updateFPSCounter();
QString m_state;
QUrl m_applicationMain;
QString m_applicationName;
QString m_applicationDescription;
QSize m_screenSize;
qreal m_dpcm;
FpsCounter *m_fpsCounter;
qreal m_fps;
uint m_intro_done : 1;
uint m_apps_ready : 1;
uint m_fps_enabled : 1;
};
#endif // ENGINE_H
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