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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWidgets 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 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 Q_AUTOTEST_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);
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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