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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or 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.GPL2 and 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-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKWINDOW_H
#define QQUICKWINDOW_H
#include <QtQuick/qtquickglobal.h>
#include <QtQuick/qsgrendererinterface.h>
#include <QtCore/qmetatype.h>
#include <QtGui/qopengl.h>
#include <QtGui/qwindow.h>
#include <QtGui/qevent.h>
#include <QtQml/qqml.h>
QT_BEGIN_NAMESPACE
class QRunnable;
class QQuickItem;
class QSGTexture;
class QInputMethodEvent;
class QQuickWindowPrivate;
class QQuickWindowAttached;
class QOpenGLContext;
class QOpenGLFramebufferObject;
class QQmlIncubationController;
class QInputMethodEvent;
class QQuickCloseEvent;
class QQuickRenderControl;
class QSGRectangleNode;
class QSGImageNode;
class QSGNinePatchNode;
class Q_QUICK_EXPORT QQuickWindow : public QWindow
{
Q_OBJECT
Q_PRIVATE_PROPERTY(QQuickWindow::d_func(), QQmlListProperty<QObject> data READ data DESIGNABLE false)
Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
Q_PROPERTY(QQuickItem* contentItem READ contentItem CONSTANT)
Q_PROPERTY(QQuickItem* activeFocusItem READ activeFocusItem NOTIFY activeFocusItemChanged REVISION 1)
Q_CLASSINFO("DefaultProperty", "data")
Q_DECLARE_PRIVATE(QQuickWindow)
public:
enum CreateTextureOption {
TextureHasAlphaChannel = 0x0001,
TextureHasMipmaps = 0x0002,
TextureOwnsGLTexture = 0x0004,
TextureCanUseAtlas = 0x0008,
TextureIsOpaque = 0x0010
};
enum RenderStage {
BeforeSynchronizingStage,
AfterSynchronizingStage,
BeforeRenderingStage,
AfterRenderingStage,
AfterSwapStage,
NoStage
};
Q_DECLARE_FLAGS(CreateTextureOptions, CreateTextureOption)
enum SceneGraphError {
ContextNotAvailable = 1
};
Q_ENUM(SceneGraphError)
explicit QQuickWindow(QWindow *parent = Q_NULLPTR);
explicit QQuickWindow(QQuickRenderControl *renderControl);
virtual ~QQuickWindow();
QQuickItem *contentItem() const;
QQuickItem *activeFocusItem() const;
QObject *focusObject() const Q_DECL_OVERRIDE;
QQuickItem *mouseGrabberItem() const;
bool sendEvent(QQuickItem *, QEvent *);
QImage grabWindow();
#if QT_CONFIG(opengl)
void setRenderTarget(QOpenGLFramebufferObject *fbo);
QOpenGLFramebufferObject *renderTarget() const;
#endif
void setRenderTarget(uint fboId, const QSize &size);
uint renderTargetId() const;
QSize renderTargetSize() const;
#if QT_CONFIG(opengl)
void resetOpenGLState();
#endif
QQmlIncubationController *incubationController() const;
#if QT_CONFIG(accessibility)
QAccessibleInterface *accessibleRoot() const Q_DECL_OVERRIDE;
#endif
// Scene graph specific functions
QSGTexture *createTextureFromImage(const QImage &image) const;
QSGTexture *createTextureFromImage(const QImage &image, CreateTextureOptions options) const;
QSGTexture *createTextureFromId(uint id, const QSize &size, CreateTextureOptions options = CreateTextureOption()) const;
void setClearBeforeRendering(bool enabled);
bool clearBeforeRendering() const;
void setColor(const QColor &color);
QColor color() const;
static bool hasDefaultAlphaBuffer();
static void setDefaultAlphaBuffer(bool useAlpha);
void setPersistentOpenGLContext(bool persistent);
bool isPersistentOpenGLContext() const;
void setPersistentSceneGraph(bool persistent);
bool isPersistentSceneGraph() const;
QOpenGLContext *openglContext() const;
bool isSceneGraphInitialized() const;
void scheduleRenderJob(QRunnable *job, RenderStage schedule);
qreal effectiveDevicePixelRatio() const;
QSGRendererInterface *rendererInterface() const;
static void setSceneGraphBackend(QSGRendererInterface::GraphicsApi api);
static void setSceneGraphBackend(const QString &backend);
static QString sceneGraphBackend();
QSGRectangleNode *createRectangleNode() const;
QSGImageNode *createImageNode() const;
QSGNinePatchNode *createNinePatchNode() const;
Q_SIGNALS:
void frameSwapped();
Q_REVISION(2) void openglContextCreated(QOpenGLContext *context);
void sceneGraphInitialized();
void sceneGraphInvalidated();
void beforeSynchronizing();
Q_REVISION(2) void afterSynchronizing();
void beforeRendering();
void afterRendering();
Q_REVISION(2) void afterAnimating();
Q_REVISION(2) void sceneGraphAboutToStop();
Q_REVISION(1) void closing(QQuickCloseEvent *close);
void colorChanged(const QColor &);
Q_REVISION(1) void activeFocusItemChanged();
Q_REVISION(2) void sceneGraphError(QQuickWindow::SceneGraphError error, const QString &message);
public Q_SLOTS:
void update();
void releaseResources();
protected:
QQuickWindow(QQuickWindowPrivate &dd, QWindow *parent = Q_NULLPTR);
void exposeEvent(QExposeEvent *) Q_DECL_OVERRIDE;
void resizeEvent(QResizeEvent *) Q_DECL_OVERRIDE;
void showEvent(QShowEvent *) Q_DECL_OVERRIDE;
void hideEvent(QHideEvent *) Q_DECL_OVERRIDE;
// TODO Qt 6: reimplement QWindow::closeEvent to emit closing
void focusInEvent(QFocusEvent *) Q_DECL_OVERRIDE;
void focusOutEvent(QFocusEvent *) Q_DECL_OVERRIDE;
bool event(QEvent *) Q_DECL_OVERRIDE;
void keyPressEvent(QKeyEvent *) Q_DECL_OVERRIDE;
void keyReleaseEvent(QKeyEvent *) Q_DECL_OVERRIDE;
void mousePressEvent(QMouseEvent *) Q_DECL_OVERRIDE;
void mouseReleaseEvent(QMouseEvent *) Q_DECL_OVERRIDE;
void mouseDoubleClickEvent(QMouseEvent *) Q_DECL_OVERRIDE;
void mouseMoveEvent(QMouseEvent *) Q_DECL_OVERRIDE;
#if QT_CONFIG(wheelevent)
void wheelEvent(QWheelEvent *) Q_DECL_OVERRIDE;
#endif
private Q_SLOTS:
void maybeUpdate();
void cleanupSceneGraph();
void physicalDpiChanged();
void handleScreenChanged(QScreen *screen);
void setTransientParent_helper(QQuickWindow *window);
void runJobsAfterSwap();
void handleApplicationStateChanged(Qt::ApplicationState state);
private:
friend class QQuickItem;
friend class QQuickWidget;
friend class QQuickRenderControl;
friend class QQuickAnimatorController;
Q_DISABLE_COPY(QQuickWindow)
};
#ifndef QT_NO_DEBUG_STREAM
QDebug Q_QUICK_EXPORT operator<<(QDebug debug, const QQuickWindow *item);
#endif
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QQuickWindow *)
#endif // QQUICKWINDOW_H
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