qstyle_p.h File Reference

#include "private/qobject_p.h"
#include <QtGui/qguiapplication.h>
#include <QtWidgets/qstyle.h>

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Classes
class	QStylePrivate

Macros
#define	BEGIN_STYLE_PIXMAPCACHE(a)
#define	END_STYLE_PIXMAPCACHE

Functions
QImage	styleCacheImage (const QSize &size)
QPixmap	styleCachePixmap (const QSize &size)

Macro Definition Documentation

BEGIN_STYLE_PIXMAPCACHE

#define BEGIN_STYLE_PIXMAPCACHE

(

a

)

Value:

    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); \
        }

Definition at line 58 of file qstyle_p.h.

END_STYLE_PIXMAPCACHE

#define END_STYLE_PIXMAPCACHE

Value:

        if (doPixmapCache) { \
            p->end(); \
            delete p; \
            internalPixmapCache = QPixmap::fromImage(imageCache); \
            painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); \
            QPixmapCache::insert(unique, internalPixmapCache); \
        } \
    }

Definition at line 79 of file qstyle_p.h.

Function Documentation

styleCacheImage()

QImage styleCacheImage ( const QSize &  size )

inline

Definition at line 42 of file qstyle_p.h.

References QImage::Format_ARGB32_Premultiplied, qApp, and QImage::setDevicePixelRatio().

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styleCachePixmap()

QPixmap styleCachePixmap ( const QSize &  size )

inline

Definition at line 50 of file qstyle_p.h.

References qApp, and QPixmap::setDevicePixelRatio().

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