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// 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 QPLATFORMINTEGRATION_H
#define QPLATFORMINTEGRATION_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 <QtGui/qwindowdefs.h>
#include <qpa/qplatformscreen.h>
#include <QtGui/qsurfaceformat.h>
#include <QtGui/qopenglcontext.h>
QT_BEGIN_NAMESPACE
class QPlatformWindow;
class QWindow;
class QPlatformBackingStore;
class QPlatformFontDatabase;
class QPlatformClipboard;
class QPlatformNativeInterface;
class QPlatformDrag;
class QPlatformOpenGLContext;
class QGuiGLFormat;
class QAbstractEventDispatcher;
class QPlatformInputContext;
class QPlatformAccessibility;
class QPlatformTheme;
class QPlatformDialogHelper;
class QPlatformSharedGraphicsCache;
class QPlatformServices;
class QPlatformSessionManager;
class QKeyEvent;
class QPlatformOffscreenSurface;
class QOffscreenSurface;
class QPlatformVulkanInstance;
class QVulkanInstance;
namespace QNativeInterface::Private {
template <typename R, typename I, auto func, typename... Args>
struct QInterfaceProxyImp
{
template <typename T>
static R apply(T *obj, Args... args)
{
if (auto *iface = dynamic_cast<I*>(obj))
return (iface->*func)(args...);
else
return R();
}
};
template <auto func>
struct QInterfaceProxy;
template <typename R, typename I, typename... Args, R(I::*func)(Args...)>
struct QInterfaceProxy<func> : public QInterfaceProxyImp<R, I, func, Args...> {};
template <typename R, typename I, typename... Args, R(I::*func)(Args...) const>
struct QInterfaceProxy<func> : public QInterfaceProxyImp<R, I, func, Args...> {};
} // QNativeInterface::Private
class Q_GUI_EXPORT QPlatformIntegration
{
public:
Q_DISABLE_COPY_MOVE(QPlatformIntegration)
enum Capability {
ThreadedPixmaps = 1,
OpenGL,
ThreadedOpenGL,
SharedGraphicsCache,
BufferQueueingOpenGL,
WindowMasks,
MultipleWindows,
ApplicationState,
ForeignWindows,
NonFullScreenWindows,
NativeWidgets,
WindowManagement,
WindowActivation, // whether requestActivate is supported
SyncState,
RasterGLSurface,
AllGLFunctionsQueryable,
ApplicationIcon,
SwitchableWidgetComposition,
TopStackedNativeChildWindows,
OpenGLOnRasterSurface,
MaximizeUsingFullscreenGeometry,
PaintEvents,
RhiBasedRendering,
ScreenWindowGrabbing // whether QScreen::grabWindow() is supported
};
virtual ~QPlatformIntegration() { }
virtual bool hasCapability(Capability cap) const;
virtual QPlatformPixmap *createPlatformPixmap(QPlatformPixmap::PixelType type) const;
virtual QPlatformWindow *createPlatformWindow(QWindow *window) const = 0;
virtual QPlatformWindow *createForeignWindow(QWindow *, WId) const { return nullptr; }
virtual QPlatformBackingStore *createPlatformBackingStore(QWindow *window) const = 0;
#ifndef QT_NO_OPENGL
virtual QPlatformOpenGLContext *createPlatformOpenGLContext(QOpenGLContext *context) const;
#endif
virtual QPlatformSharedGraphicsCache *createPlatformSharedGraphicsCache(const char *cacheId) const;
virtual QPaintEngine *createImagePaintEngine(QPaintDevice *paintDevice) const;
// Event dispatcher:
virtual QAbstractEventDispatcher *createEventDispatcher() const = 0;
virtual void initialize();
virtual void destroy();
//Deeper window system integrations
virtual QPlatformFontDatabase *fontDatabase() const;
#ifndef QT_NO_CLIPBOARD
virtual QPlatformClipboard *clipboard() const;
#endif
#if QT_CONFIG(draganddrop)
virtual QPlatformDrag *drag() const;
#endif
virtual QPlatformInputContext *inputContext() const;
#if QT_CONFIG(accessibility)
virtual QPlatformAccessibility *accessibility() const;
#endif
// Access native handles. The window handle is already available from Wid;
virtual QPlatformNativeInterface *nativeInterface() const;
virtual QPlatformServices *services() const;
enum StyleHint {
CursorFlashTime,
KeyboardInputInterval,
MouseDoubleClickInterval,
StartDragDistance,
StartDragTime,
KeyboardAutoRepeatRate,
ShowIsFullScreen,
PasswordMaskDelay,
FontSmoothingGamma,
StartDragVelocity,
UseRtlExtensions,
PasswordMaskCharacter,
SetFocusOnTouchRelease,
ShowIsMaximized,
MousePressAndHoldInterval,
TabFocusBehavior,
ReplayMousePressOutsidePopup,
ItemViewActivateItemOnSingleClick,
UiEffects,
WheelScrollLines,
ShowShortcutsInContextMenus,
MouseQuickSelectionThreshold,
MouseDoubleClickDistance
};
virtual QVariant styleHint(StyleHint hint) const;
virtual Qt::WindowState defaultWindowState(Qt::WindowFlags) const;
virtual Qt::KeyboardModifiers queryKeyboardModifiers() const;
virtual QList<int> possibleKeys(const QKeyEvent *) const;
virtual QStringList themeNames() const;
virtual QPlatformTheme *createPlatformTheme(const QString &name) const;
virtual QPlatformOffscreenSurface *createPlatformOffscreenSurface(QOffscreenSurface *surface) const;
#ifndef QT_NO_SESSIONMANAGER
virtual QPlatformSessionManager *createPlatformSessionManager(const QString &id, const QString &key) const;
#endif
virtual void sync();
#ifndef QT_NO_OPENGL
virtual QOpenGLContext::OpenGLModuleType openGLModuleType();
#endif
virtual void setApplicationIcon(const QIcon &icon) const;
virtual void beep() const;
virtual void quit() const;
#if QT_CONFIG(vulkan) || defined(Q_CLANG_QDOC)
virtual QPlatformVulkanInstance *createPlatformVulkanInstance(QVulkanInstance *instance) const;
#endif
template <auto func, typename... Args>
auto call(Args... args)
{
using namespace QNativeInterface::Private;
return QInterfaceProxy<func>::apply(this, args...);
}
protected:
QPlatformIntegration() = default;
};
QT_END_NAMESPACE
#endif // QPLATFORMINTEGRATION_H
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