151 lines
4.7 KiB
C++
151 lines
4.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtWidgets module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QWIDGETREPAINTMANAGER_P_H
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#define QWIDGETREPAINTMANAGER_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <QtWidgets/private/qtwidgetsglobal_p.h>
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#include <QDebug>
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#include <QtWidgets/qwidget.h>
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#include <private/qwidget_p.h>
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#include <QtGui/qbackingstore.h>
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QT_BEGIN_NAMESPACE
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class QPlatformTextureList;
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class QPlatformTextureListWatcher;
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class QWidgetRepaintManager;
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class Q_AUTOTEST_EXPORT QWidgetRepaintManager
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{
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public:
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enum UpdateTime {
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UpdateNow,
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UpdateLater
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};
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enum BufferState{
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BufferValid,
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BufferInvalid
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};
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QWidgetRepaintManager(QWidget *t);
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~QWidgetRepaintManager();
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QBackingStore *backingStore() const { return store; }
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void setBackingStore(QBackingStore *backingStore) { store = backingStore; }
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template <class T>
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void markDirty(const T &r, QWidget *widget, UpdateTime updateTime = UpdateLater,
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BufferState bufferState = BufferValid);
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void removeDirtyWidget(QWidget *w);
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void sync(QWidget *exposedWidget, const QRegion &exposedRegion);
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void sync();
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void markNeedsFlush(QWidget *widget, const QRegion ®ion, const QPoint &topLevelOffset);
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void addStaticWidget(QWidget *widget);
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void moveStaticWidgets(QWidget *reparented);
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void removeStaticWidget(QWidget *widget);
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QRegion staticContents(QWidget *widget = nullptr, const QRect &withinClipRect = QRect()) const;
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bool bltRect(const QRect &rect, int dx, int dy, QWidget *widget);
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private:
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void updateLists(QWidget *widget);
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void addDirtyWidget(QWidget *widget, const QRegion &rgn);
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void resetWidget(QWidget *widget);
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void addDirtyRenderToTextureWidget(QWidget *widget);
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void sendUpdateRequest(QWidget *widget, UpdateTime updateTime);
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bool syncAllowed();
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void paintAndFlush();
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void markNeedsFlush(QWidget *widget, const QRegion ®ion = QRegion());
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void flush();
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void flush(QWidget *widget, const QRegion ®ion, QPlatformTextureList *widgetTextures);
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bool isDirty() const;
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bool hasStaticContents() const;
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void updateStaticContentsSize();
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QWidget *tlw = nullptr;
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QBackingStore *store = nullptr;
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QRegion dirty; // needsRepaint
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QVector<QWidget *> dirtyWidgets;
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QVector<QWidget *> dirtyRenderToTextureWidgets;
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QRegion topLevelNeedsFlush;
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QVector<QWidget *> needsFlushWidgets;
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QList<QWidget *> staticWidgets;
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QPlatformTextureListWatcher *textureListWatcher = nullptr;
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bool updateRequestSent = false;
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QElapsedTimer perfTime;
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int perfFrames = 0;
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Q_DISABLE_COPY_MOVE(QWidgetRepaintManager)
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};
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QT_END_NAMESPACE
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#endif // QWIDGETREPAINTMANAGER_P_H
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