KisAndroidScaling.h

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/*
 * SPDX-License-Identifier: GPL-3.0-or-later
 */
#ifndef __KISANDROIDSCALING_H_
#define __KISANDROIDSCALING_H_
 
#include <QObject>
#include <QPointer>
#include <QScreen>
 
#include "kritaui_export.h"
 
class KisApplication;
class KisConfig;
 
class KRITAUI_EXPORT KisAndroidScaling : public QObject
{
    Q_OBJECT
 
public:
    explicit KisAndroidScaling(KisConfig &cfg, KisApplication *app);
 
    static KisAndroidScaling *instance();
 
    bool isSupported() const
    {
        return !m_initialPrimaryScreen.isNull();
    }
 
    void showDialog()
    {
        maybeShowDialog(false);
    }
 
Q_SIGNALS:
    void sigInterfaceScaleChanged();
    void sigJniSetPrimaryScreenScale(qreal scale);
    void sigJniSaveInterfaceScale(bool askOnStartup);
    void sigJniScalingDialogActive(bool active);
 
private Q_SLOTS:
    void slotSplashDialogDismissed();
    void slotJniSetPrimaryScreenScale(qreal scale);
    void slotJniSaveInterfaceScale(bool askOnStartup);
    void slotJniScalingDialogActive(bool active);
 
private:
    static bool isHighDpiScalingEnabled();
 
    qreal getValidInitialScale(KisConfig &cfg) const;
 
    void setPrimaryScreenScale(qreal scale);
 
    void maybeShowDialog(bool startup);
 
    QPointer<QScreen> m_initialPrimaryScreen;
    qreal m_initialPrimaryScreenDevicePixelRatio = 0.0;
    bool m_scalingDialogActive = false;
};
 
namespace KisAndroidScalingDialog
{
 
KRITAUI_EXPORT void init();
 
KRITAUI_EXPORT void setInitialScale(KisConfig &cfg);
 
KRITAUI_EXPORT void show();
 
KRITAUI_EXPORT void maybeShowOnStartup();
 
KRITAUI_EXPORT bool isSupported();
 
} // namespace KisAndroidScalingDialog
 
#endif