126 lines
4.3 KiB
C++
126 lines
4.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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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 Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL 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 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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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 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QSTYLE_P_H
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#define QSTYLE_P_H
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#include "private/qobject_p.h"
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#include <QtGui/qguiapplication.h>
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#include <QtWidgets/qstyle.h>
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QT_BEGIN_NAMESPACE
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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 for the convenience
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// of qstyle_*.cpp. This header file may change from version to version
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// 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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// Private class
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class QStyle;
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class QStylePrivate: public QObjectPrivate
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{
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Q_DECLARE_PUBLIC(QStyle)
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public:
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inline QStylePrivate()
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: layoutSpacingIndex(-1), proxyStyle(0) {}
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mutable int layoutSpacingIndex;
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QStyle *proxyStyle;
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};
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inline QImage styleCacheImage(const QSize &size)
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{
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const qreal pixelRatio = qApp->devicePixelRatio();
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QImage cacheImage = QImage(size * pixelRatio, QImage::Format_ARGB32_Premultiplied);
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cacheImage.setDevicePixelRatio(pixelRatio);
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return cacheImage;
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}
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inline QPixmap styleCachePixmap(const QSize &size)
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{
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const qreal pixelRatio = qApp->devicePixelRatio();
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QPixmap cachePixmap = QPixmap(size * pixelRatio);
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cachePixmap.setDevicePixelRatio(pixelRatio);
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return cachePixmap;
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}
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#define BEGIN_STYLE_PIXMAPCACHE(a) \
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QRect rect = option->rect; \
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QPixmap internalPixmapCache; \
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QImage imageCache; \
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QPainter *p = painter; \
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QString unique = QStyleHelper::uniqueName((a), option, option->rect.size()); \
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int txType = painter->deviceTransform().type() | painter->worldTransform().type(); \
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bool doPixmapCache = (txType <= QTransform::TxTranslate) \
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|| (painter->deviceTransform().type() == QTransform::TxScale); \
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if (doPixmapCache && QPixmapCache::find(unique, internalPixmapCache)) { \
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painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); \
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} else { \
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if (doPixmapCache) { \
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rect.setRect(0, 0, option->rect.width(), option->rect.height()); \
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imageCache = styleCacheImage(option->rect.size()); \
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imageCache.fill(0); \
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p = new QPainter(&imageCache); \
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}
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#define END_STYLE_PIXMAPCACHE \
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if (doPixmapCache) { \
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p->end(); \
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delete p; \
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internalPixmapCache = QPixmap::fromImage(imageCache); \
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painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); \
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QPixmapCache::insert(unique, internalPixmapCache); \
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} \
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}
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QT_END_NAMESPACE
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#endif //QSTYLE_P_H
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