123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162 | // Copyright (C) 2016 The Qt Company Ltd.// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only#ifndef QPLATFORMSCREEN_H#define QPLATFORMSCREEN_H//// W A R N I N G// -------------//// This file is part of the QPA API and is not meant to be used// in applications. Usage of this API may make your code// source and binary incompatible with future versions of Qt.//#include <QtGui/qtguiglobal.h>#include <QtCore/qmetatype.h>#include <QtCore/qnamespace.h>#include <QtCore/qcoreevent.h>#include <QtCore/qvariant.h>#include <QtCore/qrect.h>#include <QtCore/qobject.h>#include <QtGui/qcolorspace.h>#include <QtGui/qcursor.h>#include <QtGui/qimage.h>#include <QtGui/qwindowdefs.h>#include <qpa/qplatformpixmap.h> QT_BEGIN_NAMESPACE class QPlatformBackingStore;class QPlatformScreenPrivate;class QPlatformWindow;class QPlatformCursor;class QScreen;class QSurfaceFormat;typedef std::pair<qreal, qreal> QDpi;class Q_GUI_EXPORT QPlatformScreen { Q_GADGET Q_DECLARE_PRIVATE(QPlatformScreen)public:Q_DISABLE_COPY_MOVE(QPlatformScreen)enum SubpixelAntialiasingType {// copied from qfontengine_p.h since we can't include private headers Subpixel_None, Subpixel_RGB, Subpixel_BGR, Subpixel_VRGB, Subpixel_VBGR };enum PowerState { PowerStateOn, PowerStateStandby, PowerStateSuspend, PowerStateOff };struct Mode { QSize size; qreal refreshRate;};QPlatformScreen();virtual~QPlatformScreen();virtualboolisPlaceholder()const{return false; }virtual QPixmap grabWindow(WId window,int x,int y,int width,int height)const;virtual QRect geometry()const=0;virtual QRect availableGeometry()const{returngeometry();}virtualintdepth()const=0;virtual QImage::Format format()const=0;virtual QColorSpace colorSpace()const{returnQColorSpace::SRgb; }virtual QSizeF physicalSize()const;virtual QDpi logicalDpi()const;virtual QDpi logicalBaseDpi()const;virtual qreal devicePixelRatio()const;virtual qreal refreshRate()const;virtual Qt::ScreenOrientation nativeOrientation()const;virtual Qt::ScreenOrientation orientation()const;virtual QWindow *topLevelAt(const QPoint &point)const; QWindowList windows()const;virtual QList<QPlatformScreen *>virtualSiblings()const;const QPlatformScreen *screenForPosition(const QPoint &point)const; QScreen *screen()const;//jl: should this function be in QPlatformIntegration//jl: maybe screenForWindow is a better name?static QPlatformScreen *platformScreenForWindow(const QWindow *window);virtual QString name()const{returnQString(); }virtual QString manufacturer()const;virtual QString model()const;virtual QString serialNumber()const;virtual QPlatformCursor *cursor()const;virtual SubpixelAntialiasingType subpixelAntialiasingTypeHint()const;virtual PowerState powerState()const;virtualvoidsetPowerState(PowerState state);virtual QList<Mode>modes()const;virtualintcurrentMode()const;virtualintpreferredMode()const;static intangleBetween(Qt::ScreenOrientation a,Qt::ScreenOrientation b);static QTransform transformBetween(Qt::ScreenOrientation a,Qt::ScreenOrientation b,const QRect &target);static QRect mapBetween(Qt::ScreenOrientation a,Qt::ScreenOrientation b,const QRect &rect);static QDpi overrideDpi(const QDpi &in);protected:voidresizeMaximizedWindows(); QScopedPointer<QPlatformScreenPrivate> d_ptr;private:friend class QScreen;};// Qt doesn't currently support running with no platform screen// QPA plugins can use this class to create a fake screenclass Q_GUI_EXPORT QPlatformPlaceholderScreen :public QPlatformScreen {public:// virtualSibling can be passed in to make the placeholder a sibling with other screens during// the transitioning phase when the real screen is about to be removed, or the first real screen// is about to be added. This is useful because Qt will currently recreate (but now show!)// windows when they are moved from one virtual desktop to another, so if the last monitor is// unplugged, then plugged in again, windows will be hidden unless the placeholder belongs to// the same virtual desktop as the other screens.QPlatformPlaceholderScreen(bool virtualSibling =true) :m_virtualSibling(virtualSibling) {}boolisPlaceholder()const override {return true; } QRect geometry()const override {returnQRect(); } QRect availableGeometry()const override {returnQRect(); }intdepth()const override {return32; }QImage::Format format()const override {returnQImage::Format::Format_RGB32; } QList<QPlatformScreen *>virtualSiblings()const override;private:bool m_virtualSibling =true;}; QT_END_NAMESPACE #endif// QPLATFORMSCREEN_H
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