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Diffstat (limited to 'src/widgets/kernel/qwidgetrepaintmanager_p.h')
-rw-r--r-- | src/widgets/kernel/qwidgetrepaintmanager_p.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/src/widgets/kernel/qwidgetrepaintmanager_p.h b/src/widgets/kernel/qwidgetrepaintmanager_p.h new file mode 100644 index 0000000000..58687383f4 --- /dev/null +++ b/src/widgets/kernel/qwidgetrepaintmanager_p.h @@ -0,0 +1,153 @@ +/**************************************************************************** +** +** 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; + + 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 isDirty() const; + + bool hasStaticContents() const; + void updateStaticContentsSize(); + + QWidget *tlw = nullptr; + QBackingStore *store = nullptr; + + QRegion dirty; // needsRepaint + QVector<QWidget *> dirtyWidgets; + QVector<QWidget *> dirtyRenderToTextureWidgets; + + QRegion topLevelNeedsFlush; + QVector<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 |