QPixmap &QPixmap::operator=( const QPixmap &pixmap )
{
if ( paintingActive() ) {
#if defined(QT_CHECK_STATE)
qWarning("QPixmap::operator=: Cannot assign to pixmap during painting");
#endif
return *this;
}
pixmap.data->ref(); // avoid 'x = x'
deref();
if ( pixmap.paintingActive() ) { // make a deep copy
init( pixmap.width(), pixmap.height(), pixmap.depth(),
pixmap.data->bitmap, pixmap.data->optim );
data->uninit = FALSE;
if ( !isNull() )
copyBlt( this, 0, 0, &pixmap, 0, 0, pixmap.width(), pixmap.height() );
pixmap.data->deref();
} else {
data = pixmap.data;
devFlags = pixmap.devFlags; // copy QPaintDevice flags
#if defined(Q_WS_WIN)
hdc = pixmap.hdc;
#elif defined(Q_WS_PM)
hps = pixmap.hps;
#elif defined(Q_WS_X11)
hd = pixmap.hd; // copy QPaintDevice drawable
rendhd = pixmap.rendhd;
copyX11Data( &pixmap ); // copy x11Data
#elif defined(Q_WS_MACX) || defined(Q_OS_MAC9)
hd = pixmap.hd;
#endif
}
return *this;
}
QPixmap::QPixmap( const QPixmap &pixmap )
: QPaintDevice( QInternal::Pixmap )
{
if ( pixmap.paintingActive() ) { // make a deep copy
data = 0;
operator=( pixmap.copy() );
} else {
data = pixmap.data;
data->ref();
devFlags = pixmap.devFlags; // copy QPaintDevice flags
#if defined(Q_WS_WIN)
hdc = pixmap.hdc; // copy Windows device context
#elif defined(Q_WS_X11)
hd = pixmap.hd; // copy X11 drawable
rendhd = pixmap.rendhd;
copyX11Data( &pixmap ); // copy x11Data
#elif defined(Q_WS_MAC)
hd = pixmap.hd;
#endif
}
}