| /**************************************************************************** |
| ** |
| ** 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 |
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| ** GNU Lesser General Public License Usage |
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| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
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| ** |
| ** 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 |
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| ** $QT_END_LICENSE$ |
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| ****************************************************************************/ |
| |
| #ifndef QQUICKWINDOW_P_H |
| #define QQUICKWINDOW_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include "qquickitem.h" |
| #include "qquickwindow.h" |
| #include "qquickevents_p_p.h" |
| |
| #include <QtQuick/private/qsgcontext_p.h> |
| |
| #include <QtCore/qthread.h> |
| #include <QtCore/qmutex.h> |
| #include <QtCore/qwaitcondition.h> |
| #include <QtCore/qrunnable.h> |
| #include <private/qwindow_p.h> |
| #include <private/qopengl_p.h> |
| #include <qopenglcontext.h> |
| #include <QtGui/qopenglframebufferobject.h> |
| #include <QtGui/qevent.h> |
| #include <QtGui/qstylehints.h> |
| #include <QtGui/qguiapplication.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QOpenGLVertexArrayObjectHelper; |
| class QQuickAnimatorController; |
| class QQuickDragGrabber; |
| class QQuickItemPrivate; |
| class QQuickPointerDevice; |
| class QQuickRenderControl; |
| class QQuickWindowIncubationController; |
| class QQuickWindowPrivate; |
| class QQuickWindowRenderLoop; |
| class QSGRenderLoop; |
| class QTouchEvent; |
| class QRhi; |
| class QRhiSwapChain; |
| class QRhiRenderBuffer; |
| class QRhiRenderPassDescriptor; |
| |
| //Make it easy to identify and customize the root item if needed |
| class QQuickRootItem : public QQuickItem |
| { |
| Q_OBJECT |
| public: |
| QQuickRootItem(); |
| public Q_SLOTS: |
| void setWidth(int w) {QQuickItem::setWidth(qreal(w));} |
| void setHeight(int h) {QQuickItem::setHeight(qreal(h));} |
| }; |
| |
| class Q_QUICK_PRIVATE_EXPORT QQuickCustomRenderStage |
| { |
| public: |
| virtual ~QQuickCustomRenderStage() {} |
| virtual bool render() = 0; |
| virtual bool swap() = 0; |
| }; |
| |
| class Q_QUICK_PRIVATE_EXPORT QQuickWindowPrivate : public QWindowPrivate |
| { |
| public: |
| Q_DECLARE_PUBLIC(QQuickWindow) |
| |
| enum CustomEvents { |
| FullUpdateRequest = QEvent::User + 1 |
| }; |
| |
| static inline QQuickWindowPrivate *get(QQuickWindow *c) { return c->d_func(); } |
| |
| QQuickWindowPrivate(); |
| ~QQuickWindowPrivate() override; |
| |
| void init(QQuickWindow *, QQuickRenderControl *control = nullptr); |
| |
| QQuickRootItem *contentItem; |
| QSet<QQuickItem *> parentlessItems; |
| QQmlListProperty<QObject> data(); |
| |
| QQuickItem *activeFocusItem; |
| |
| void deliverKeyEvent(QKeyEvent *e); |
| |
| // Keeps track of the item currently receiving mouse events |
| #if QT_CONFIG(cursor) |
| QQuickItem *cursorItem; |
| #endif |
| #if QT_CONFIG(quick_draganddrop) |
| QQuickDragGrabber *dragGrabber; |
| #endif |
| int touchMouseId; |
| QQuickPointerDevice *touchMouseDevice; |
| bool checkIfDoubleTapped(ulong newPressEventTimestamp, QPoint newPressPos); |
| ulong touchMousePressTimestamp; |
| QPoint touchMousePressPos; // in screen coordiantes |
| void cancelTouchMouseSynthesis(); |
| |
| // Mouse positions are saved in widget coordinates |
| QPointF lastMousePosition; |
| bool deliverTouchAsMouse(QQuickItem *item, QQuickPointerEvent *pointerEvent); |
| bool isDeliveringTouchAsMouse() const { return touchMouseId != -1 && touchMouseDevice; } |
| void translateTouchEvent(QTouchEvent *touchEvent); |
| void grabTouchPoints(QObject *grabber, const QVector<int> &ids); |
| void removeGrabber(QQuickItem *grabber, bool mouse = true, bool touch = true); |
| void sendUngrabEvent(QQuickItem *grabber, bool touch); |
| static QMouseEvent *cloneMouseEvent(QMouseEvent *event, QPointF *transformedLocalPos = nullptr); |
| void deliverToPassiveGrabbers(const QVector<QPointer <QQuickPointerHandler> > &passiveGrabbers, QQuickPointerEvent *pointerEvent); |
| void deliverMouseEvent(QQuickPointerMouseEvent *pointerEvent); |
| bool sendFilteredMouseEvent(QEvent *event, QQuickItem *receiver, QQuickItem *filteringParent); |
| bool sendFilteredPointerEvent(QQuickPointerEvent *event, QQuickItem *receiver, QQuickItem *filteringParent = nullptr); |
| bool sendFilteredPointerEventImpl(QQuickPointerEvent *event, QQuickItem *receiver, QQuickItem *filteringParent); |
| bool deliverSinglePointEventUntilAccepted(QQuickPointerEvent *); |
| |
| // entry point of events to the window |
| void handleTouchEvent(QTouchEvent *); |
| void handleMouseEvent(QMouseEvent *); |
| bool compressTouchEvent(QTouchEvent *); |
| void flushFrameSynchronousEvents(); |
| void deliverDelayedTouchEvent(); |
| |
| // the device-specific event instances which are reused during event delivery |
| mutable QVector<QQuickPointerEvent *> pointerEventInstances; |
| QQuickPointerEvent *queryPointerEventInstance(QQuickPointerDevice *device, QEvent::Type eventType = QEvent::None) const; |
| QQuickPointerEvent *pointerEventInstance(QQuickPointerDevice *device, QEvent::Type eventType = QEvent::None) const; |
| |
| // delivery of pointer events: |
| QQuickPointerEvent *pointerEventInstance(QEvent *ev) const; |
| void deliverPointerEvent(QQuickPointerEvent *); |
| void deliverTouchEvent(QQuickPointerTouchEvent *); |
| bool deliverTouchCancelEvent(QTouchEvent *); |
| bool deliverPressOrReleaseEvent(QQuickPointerEvent *, bool handlersOnly = false); |
| void deliverUpdatedTouchPoints(QQuickPointerTouchEvent *event); |
| void deliverMatchingPointsToItem(QQuickItem *item, QQuickPointerEvent *pointerEvent, bool handlersOnly = false); |
| |
| QVector<QQuickItem *> pointerTargets(QQuickItem *, QQuickEventPoint *point, bool checkMouseButtons, bool checkAcceptsTouch) const; |
| QVector<QQuickItem *> mergePointerTargets(const QVector<QQuickItem *> &list1, const QVector<QQuickItem *> &list2) const; |
| |
| // hover delivery |
| bool deliverHoverEvent(QQuickItem *, const QPointF &scenePos, const QPointF &lastScenePos, Qt::KeyboardModifiers modifiers, ulong timestamp, bool &accepted); |
| bool sendHoverEvent(QEvent::Type, QQuickItem *, const QPointF &scenePos, const QPointF &lastScenePos, |
| Qt::KeyboardModifiers modifiers, ulong timestamp, bool accepted); |
| bool clearHover(ulong timestamp = 0); |
| |
| #if QT_CONFIG(quick_draganddrop) |
| void deliverDragEvent(QQuickDragGrabber *, QEvent *); |
| bool deliverDragEvent(QQuickDragGrabber *, QQuickItem *, QDragMoveEvent *, QVarLengthArray<QQuickItem*, 64> *currentGrabItems = nullptr); |
| #endif |
| #if QT_CONFIG(cursor) |
| void updateCursor(const QPointF &scenePos); |
| QQuickItem *findCursorItem(QQuickItem *item, const QPointF &scenePos); |
| #endif |
| |
| QList<QQuickItem*> hoverItems; |
| enum FocusOption { |
| DontChangeFocusProperty = 0x01, |
| DontChangeSubFocusItem = 0x02 |
| }; |
| Q_DECLARE_FLAGS(FocusOptions, FocusOption) |
| |
| void setFocusInScope(QQuickItem *scope, QQuickItem *item, Qt::FocusReason reason, FocusOptions = nullptr); |
| void clearFocusInScope(QQuickItem *scope, QQuickItem *item, Qt::FocusReason reason, FocusOptions = nullptr); |
| static void notifyFocusChangesRecur(QQuickItem **item, int remaining); |
| void clearFocusObject() override; |
| |
| void updateFocusItemTransform(); |
| |
| void dirtyItem(QQuickItem *); |
| void cleanup(QSGNode *); |
| |
| void polishItems(); |
| void forcePolish(); |
| void syncSceneGraph(); |
| void renderSceneGraph(const QSize &size, const QSize &surfaceSize = QSize()); |
| |
| bool isRenderable() const; |
| |
| bool emitError(QQuickWindow::SceneGraphError error, const QString &msg); |
| |
| QQuickItem::UpdatePaintNodeData updatePaintNodeData; |
| |
| QQuickItem *dirtyItemList; |
| QList<QSGNode *> cleanupNodeList; |
| |
| QVector<QQuickItem *> itemsToPolish; |
| QVector<QQuickItem *> hasFiltered; // during event delivery to a single receiver, the filtering parents for which childMouseEventFilter was already called |
| QVector<QQuickItem *> skipDelivery; // during delivery of one event to all receivers, Items to which we know delivery is no longer necessary |
| |
| qreal devicePixelRatio; |
| QMetaObject::Connection physicalDpiChangedConnection; |
| |
| void updateDirtyNodes(); |
| void cleanupNodes(); |
| void cleanupNodesOnShutdown(); |
| bool updateEffectiveOpacity(QQuickItem *); |
| void updateEffectiveOpacityRoot(QQuickItem *, qreal); |
| void updateDirtyNode(QQuickItem *); |
| |
| void fireFrameSwapped() { Q_EMIT q_func()->frameSwapped(); } |
| void fireOpenGLContextCreated(QOpenGLContext *context) { Q_EMIT q_func()->openglContextCreated(context); } |
| void fireAboutToStop() { Q_EMIT q_func()->sceneGraphAboutToStop(); } |
| |
| QSGRenderContext *context; |
| QSGRenderer *renderer; |
| QByteArray customRenderMode; // Default renderer supports "clip", "overdraw", "changes", "batches" and blank. |
| |
| QSGRenderLoop *windowManager; |
| QQuickRenderControl *renderControl; |
| QScopedPointer<QQuickAnimatorController> animationController; |
| QScopedPointer<QTouchEvent> delayedTouch; |
| |
| int pointerEventRecursionGuard; |
| QQuickCustomRenderStage *customRenderStage; |
| |
| QColor clearColor; |
| |
| uint clearBeforeRendering : 1; |
| |
| uint persistentGLContext : 1; |
| uint persistentSceneGraph : 1; |
| |
| uint lastWheelEventAccepted : 1; |
| bool componentCompleted : 1; |
| |
| bool allowChildEventFiltering : 1; |
| bool allowDoubleClick : 1; |
| |
| Qt::FocusReason lastFocusReason; |
| |
| QOpenGLFramebufferObject *renderTarget; |
| uint renderTargetId; |
| QSize renderTargetSize; |
| |
| QOpenGLVertexArrayObjectHelper *vaoHelper; |
| |
| mutable QQuickWindowIncubationController *incubationController; |
| |
| static bool defaultAlphaBuffer; |
| static QQuickWindow::TextRenderType textRenderType; |
| |
| static bool dragOverThreshold(qreal d, Qt::Axis axis, QMouseEvent *event, int startDragThreshold = -1); |
| |
| template <typename TEventPoint> |
| static bool dragOverThreshold(qreal d, Qt::Axis axis, const TEventPoint *p, int startDragThreshold = -1) |
| { |
| QStyleHints *styleHints = qApp->styleHints(); |
| bool overThreshold = qAbs(d) > (startDragThreshold >= 0 ? startDragThreshold : styleHints->startDragDistance()); |
| const bool dragVelocityLimitAvailable = (styleHints->startDragVelocity() > 0); |
| if (!overThreshold && dragVelocityLimitAvailable) { |
| qreal velocity = axis == Qt::XAxis ? p->velocity().x() : p->velocity().y(); |
| overThreshold |= qAbs(velocity) > styleHints->startDragVelocity(); |
| } |
| return overThreshold; |
| } |
| |
| static bool dragOverThreshold(const QQuickEventPoint *point) |
| { |
| QPointF delta = point->scenePosition() - point->scenePressPosition(); |
| return (QQuickWindowPrivate::dragOverThreshold(delta.x(), Qt::XAxis, point) || |
| QQuickWindowPrivate::dragOverThreshold(delta.y(), Qt::YAxis, point)); |
| } |
| |
| static bool dragOverThreshold(QVector2D delta); |
| |
| // data property |
| static void data_append(QQmlListProperty<QObject> *, QObject *); |
| static int data_count(QQmlListProperty<QObject> *); |
| static QObject *data_at(QQmlListProperty<QObject> *, int); |
| static void data_clear(QQmlListProperty<QObject> *); |
| |
| static void contextCreationFailureMessage(const QSurfaceFormat &format, |
| QString *translatedMessage, |
| QString *untranslatedMessage, |
| bool isEs); |
| |
| static void emitBeforeRenderPassRecording(void *ud); |
| static void emitAfterRenderPassRecording(void *ud); |
| |
| QMutex renderJobMutex; |
| QList<QRunnable *> beforeSynchronizingJobs; |
| QList<QRunnable *> afterSynchronizingJobs; |
| QList<QRunnable *> beforeRenderingJobs; |
| QList<QRunnable *> afterRenderingJobs; |
| QList<QRunnable *> afterSwapJobs; |
| |
| void runAndClearJobs(QList<QRunnable *> *jobs); |
| |
| QQuickWindow::GraphicsStateInfo rhiStateInfo; |
| QRhi *rhi = nullptr; |
| QRhiSwapChain *swapchain = nullptr; |
| QRhiRenderBuffer *depthStencilForSwapchain = nullptr; |
| QRhiRenderPassDescriptor *rpDescForSwapchain = nullptr; |
| uint hasActiveSwapchain : 1; |
| uint hasRenderableSwapchain : 1; |
| uint swapchainJustBecameRenderable : 1; |
| |
| private: |
| static void cleanupNodesOnShutdown(QQuickItem *); |
| }; |
| |
| class QQuickWindowQObjectCleanupJob : public QRunnable |
| { |
| public: |
| QQuickWindowQObjectCleanupJob(QObject *o) : object(o) { } |
| void run() override { delete object; } |
| QObject *object; |
| static void schedule(QQuickWindow *window, QObject *object) { |
| Q_ASSERT(window); |
| Q_ASSERT(object); |
| window->scheduleRenderJob(new QQuickWindowQObjectCleanupJob(object), QQuickWindow::AfterSynchronizingStage); |
| } |
| }; |
| |
| Q_DECLARE_OPERATORS_FOR_FLAGS(QQuickWindowPrivate::FocusOptions) |
| |
| QT_END_NAMESPACE |
| |
| #endif // QQUICKWINDOW_P_H |