本文整理汇总了C++中QDataStream::setFloatingPointPrecision方法的典型用法代码示例。如果您正苦于以下问题：C++ QDataStream::setFloatingPointPrecision方法的具体用法？C++ QDataStream::setFloatingPointPrecision怎么用？C++ QDataStream::setFloatingPointPrecision使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QDataStream的用法示例。
在下文中一共展示了QDataStream::setFloatingPointPrecision方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: readRecord
//.........这里部分代码省略.........
quint32 x, y;
stream >> x >> y;
mOutput->moveToEx( x, y );
//kDebug(33100) << "xx EMR_MOVETOEX" << x << y;
}
break;
case EMR_SETMETARGN:
{
// Takes no arguments
mOutput->setMetaRgn();
}
break;
case EMR_INTERSECTCLIPRECT:
{
QRect clip;
stream >> clip;
//kDebug(33100) << "EMR_INTERSECTCLIPRECT" << clip;
}
break;
case EMR_SAVEDC:
{
mOutput->saveDC();
}
break;
case EMR_RESTOREDC:
{
qint32 savedDC;
stream >> savedDC;
mOutput->restoreDC( savedDC );
}
break;
case EMR_SETWORLDTRANSFORM:
{
stream.setFloatingPointPrecision(QDataStream::SinglePrecision);
float M11, M12, M21, M22, Dx, Dy;
stream >> M11;
stream >> M12;
stream >> M21;
stream >> M22;
stream >> Dx;
stream >> Dy;
//kDebug(31000) << "Set world transform" << M11 << M12 << M21 << M22 << Dx << Dy;
mOutput->setWorldTransform( M11, M12, M21, M22, Dx, Dy );
}
break;
case EMR_MODIFYWORLDTRANSFORM:
{
stream.setFloatingPointPrecision(QDataStream::SinglePrecision);
float M11, M12, M21, M22, Dx, Dy;
stream >> M11;
stream >> M12;
stream >> M21;
stream >> M22;
stream >> Dx;
stream >> Dy;
//kDebug(31000) << "stream position after the matrix: " << stream.device()->pos();
quint32 ModifyWorldTransformMode;
stream >> ModifyWorldTransformMode;
mOutput->modifyWorldTransform( ModifyWorldTransformMode, M11, M12,
M21, M22, Dx, Dy );
}
break;
case EMR_SELECTOBJECT:
quint32 ihObject;
stream >> ihObject;
mOutput->selectObject( ihObject );示例2: QTransform
BitBltRecord::BitBltRecord( QDataStream &stream, quint32 recordSize )
: m_bitmap(0)
{
//kDebug(31000) << "stream position at the start: " << stream.device()->pos();
//kDebug(31000) << "record size: " << recordSize;
stream >> m_bounds;
stream >> m_xDest; // x, y of upper left corner of the destination.
stream >> m_yDest;
stream >> m_cxDest; // width, height of the rectangle in logical coords.
stream >> m_cyDest;
//kDebug(31000) << "Destination" << m_xDest << m_yDest << m_cxDest << m_cyDest;
stream >> m_BitBltRasterOperation;
//kDebug(31000) << "bitblt raster operation:" << hex << m_BitBltRasterOperation << dec;
stream >> m_xSrc; // x, y of the source
stream >> m_ySrc;
//kDebug(31000) << "Source" << m_xSrc << m_ySrc;
//kDebug(31000) << "position before the matrix: " << stream.device()->pos();
stream.setFloatingPointPrecision(QDataStream::SinglePrecision);
float M11, M12, M21, M22, Dx, Dy;
stream >> M11; // Transformation matrix
stream >> M12;
stream >> M21;
stream >> M22;
stream >> Dx;
stream >> Dy;
m_XFormSrc = QTransform( M11, M12, M21, M22, Dx, Dy );
//kDebug(31000) << "Matrix" << m_XFormSrc;
//kDebug(31000) << "position after the matrix: " << stream.device()->pos();
stream >> m_red >> m_green >> m_blue >> m_reserved;
//kDebug(31000) << "Background color" << m_red << m_green << m_blue << m_reserved;
//kDebug(31000) << "position after background color: " << stream.device()->pos();
stream >> m_UsageSrc;
//kDebug(31000) << "Color table interpretation" << m_UsageSrc;
stream >> m_offBmiSrc; // Offset to start of bitmap header from start of record
stream >> m_cbBmiSrc; // Size of source bitmap header
stream >> m_offBitsSrc; // Offset to source bitmap from start of record
stream >> m_cbBitsSrc; // Size of source bitmap
#if 0
kDebug(31000) << "header offset:" << m_offBmiSrc;
kDebug(31000) << "header size: " << m_cbBmiSrc;
kDebug(31000) << "bitmap offset:" << m_offBitsSrc;
kDebug(31000) << "bitmap size: " << m_cbBitsSrc;
#endif
//kDebug(31000) << "stream position before the image: " << stream.device()->pos();
if (m_cbBmiSrc > 0) {
m_bitmap = new Bitmap( stream, recordSize, 8 + 23 * 4, // header + 23 ints
m_offBmiSrc, m_cbBmiSrc,
m_offBitsSrc, m_cbBitsSrc );
}
//kDebug(31000) << "stream position at the end: " << stream.device()->pos();
}