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| |
| #ifndef QSTYLE_P_H |
| #define QSTYLE_P_H |
| |
| #include "private/qobject_p.h" |
| #include <QtGui/qguiapplication.h> |
| #include <QtWidgets/qstyle.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of qstyle_*.cpp. This header file may change from version to version |
| // without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| // Private class |
| |
| class QStyle; |
| |
| class QStylePrivate: public QObjectPrivate |
| { |
| Q_DECLARE_PUBLIC(QStyle) |
| public: |
| inline QStylePrivate() |
| : layoutSpacingIndex(-1), proxyStyle(nullptr) {} |
| |
| static bool useFullScreenForPopup(); |
| |
| mutable int layoutSpacingIndex; |
| QStyle *proxyStyle; |
| }; |
| |
| inline QImage styleCacheImage(const QSize &size) |
| { |
| const qreal pixelRatio = qApp->devicePixelRatio(); |
| QImage cacheImage = QImage(size * pixelRatio, QImage::Format_ARGB32_Premultiplied); |
| cacheImage.setDevicePixelRatio(pixelRatio); |
| return cacheImage; |
| } |
| |
| inline QPixmap styleCachePixmap(const QSize &size) |
| { |
| const qreal pixelRatio = qApp->devicePixelRatio(); |
| QPixmap cachePixmap = QPixmap(size * pixelRatio); |
| cachePixmap.setDevicePixelRatio(pixelRatio); |
| return cachePixmap; |
| } |
| |
| #define BEGIN_STYLE_PIXMAPCACHE(a) \ |
| QRect rect = option->rect; \ |
| QPixmap internalPixmapCache; \ |
| QImage imageCache; \ |
| QPainter *p = painter; \ |
| QString unique = QStyleHelper::uniqueName((a), option, option->rect.size()); \ |
| int txType = painter->deviceTransform().type() | painter->worldTransform().type(); \ |
| bool doPixmapCache = (!option->rect.isEmpty()) \ |
| && ((txType <= QTransform::TxTranslate) || (painter->deviceTransform().type() == QTransform::TxScale)); \ |
| if (doPixmapCache && QPixmapCache::find(unique, &internalPixmapCache)) { \ |
| painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); \ |
| } else { \ |
| if (doPixmapCache) { \ |
| rect.setRect(0, 0, option->rect.width(), option->rect.height()); \ |
| imageCache = styleCacheImage(option->rect.size()); \ |
| imageCache.fill(0); \ |
| p = new QPainter(&imageCache); \ |
| } |
| |
| |
| |
| #define END_STYLE_PIXMAPCACHE \ |
| if (doPixmapCache) { \ |
| p->end(); \ |
| delete p; \ |
| internalPixmapCache = QPixmap::fromImage(imageCache); \ |
| painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); \ |
| QPixmapCache::insert(unique, internalPixmapCache); \ |
| } \ |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif //QSTYLE_P_H |