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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 QWIDGETREPAINTMANAGER_P_H
#define QWIDGETREPAINTMANAGER_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 <QtWidgets/private/qtwidgetsglobal_p.h>
#include <QDebug>
#include <QtWidgets/qwidget.h>
#include <private/qwidget_p.h>
#include <QtGui/qbackingstore.h>
QT_BEGIN_NAMESPACE
class QPlatformTextureList;
class QPlatformTextureListWatcher;
class QWidgetRepaintManager;
class QRhi;
class QRhiSwapChain;
class Q_WIDGETS_EXPORT QWidgetRepaintManager
{
Q_GADGET
public:
enum UpdateTime {
UpdateNow,
UpdateLater
};
Q_ENUM(UpdateTime)
enum BufferState{
BufferValid,
BufferInvalid
};
Q_ENUM(BufferState)
QWidgetRepaintManager(QWidget *t);
~QWidgetRepaintManager();
QBackingStore *backingStore() const { return store; }
void setBackingStore(QBackingStore *backingStore) { store = backingStore; }
template <class T>
void markDirty(const T &r, QWidget *widget, UpdateTime updateTime = UpdateLater,
BufferState bufferState = BufferValid);
void removeDirtyWidget(QWidget *w);
void sync(QWidget *exposedWidget, const QRegion &exposedRegion);
void sync();
void markNeedsFlush(QWidget *widget, const QRegion ®ion, const QPoint &topLevelOffset);
void addStaticWidget(QWidget *widget);
void moveStaticWidgets(QWidget *reparented);
void removeStaticWidget(QWidget *widget);
QRegion staticContents(QWidget *widget = nullptr, const QRect &withinClipRect = QRect()) const;
QRegion dirtyRegion() const { return dirty; }
QList<QWidget *> dirtyWidgetList() const { return dirtyWidgets; }
bool isDirty() const;
bool bltRect(const QRect &rect, int dx, int dy, QWidget *widget);
QRhi *rhi() const;
private:
void updateLists(QWidget *widget);
void addDirtyWidget(QWidget *widget, const QRegion &rgn);
void resetWidget(QWidget *widget);
void addDirtyRenderToTextureWidget(QWidget *widget);
void sendUpdateRequest(QWidget *widget, UpdateTime updateTime);
bool syncAllowed();
void paintAndFlush();
void markNeedsFlush(QWidget *widget, const QRegion ®ion = QRegion());
void flush();
void flush(QWidget *widget, const QRegion ®ion, QPlatformTextureList *widgetTextures);
bool hasStaticContents() const;
void updateStaticContentsSize();
QWidget *tlw = nullptr;
QBackingStore *store = nullptr;
QRegion dirty; // needsRepaint
QList<QWidget *> dirtyWidgets;
QList<QWidget *> dirtyRenderToTextureWidgets;
QRegion topLevelNeedsFlush;
QList<QWidget *> needsFlushWidgets;
QList<QWidget *> staticWidgets;
QPlatformTextureListWatcher *textureListWatcher = nullptr;
bool updateRequestSent = false;
QElapsedTimer perfTime;
int perfFrames = 0;
Q_DISABLE_COPY_MOVE(QWidgetRepaintManager)
};
QT_END_NAMESPACE
#endif // QWIDGETREPAINTMANAGER_P_H
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