KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder > Class Template Reference

#include <kis_asl_writer_utils.h>

Public Member Functions
	OffsetStreamPusher (QIODevice &device, qint64 alignOnExit=0, qint64 externalSizeTagOffset=-1)
	~OffsetStreamPusher ()

Private Attributes
qint64	m_alignOnExit
qint64	m_chunkStartPos
QIODevice &	m_device
qint64	m_externalSizeTagOffset

Detailed Description

template<class OffsetType, psd_byte_order byteOrder>
class KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >

Definition at line 160 of file kis_asl_writer_utils.h.

Constructor & Destructor Documentation

OffsetStreamPusher()

template<class OffsetType , psd_byte_order byteOrder>

KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::OffsetStreamPusher ( QIODevice & device, qint64 alignOnExit = 0, qint64 externalSizeTagOffset = -1 )

inline

Definition at line 163 of file kis_asl_writer_utils.h.

        : m_device(device)
        , m_alignOnExit(alignOnExit)
        , m_externalSizeTagOffset(externalSizeTagOffset)
    {
        m_chunkStartPos = m_device.pos();
 
        if (externalSizeTagOffset < 0) {
            const OffsetType fakeObjectSize = OffsetType(0xdeadbeef);
            SAFE_WRITE_EX(byteOrder, m_device, fakeObjectSize);
        }
    }

References KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::m_chunkStartPos, KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::m_device, and SAFE_WRITE_EX.

~OffsetStreamPusher()

template<class OffsetType , psd_byte_order byteOrder>

KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::~OffsetStreamPusher ( )

inline

Definition at line 176 of file kis_asl_writer_utils.h.

    {
        try {
            if (m_alignOnExit) {
                qint64 currentPos = m_device.pos();
                const qint64 alignedPos = alignOffsetCeil(currentPos, m_alignOnExit);
 
                for (; currentPos < alignedPos; currentPos++) {
                    quint8 padding = 0;
                    SAFE_WRITE_EX(byteOrder, m_device, padding);
                }
            }
 
            const qint64 currentPos = m_device.pos();
 
            qint64 writtenDataSize = 0;
            qint64 sizeFiledOffset = 0;
 
            if (m_externalSizeTagOffset >= 0) {
                writtenDataSize = currentPos - m_chunkStartPos;
                sizeFiledOffset = m_externalSizeTagOffset;
            } else {
                writtenDataSize = currentPos - m_chunkStartPos - sizeof(OffsetType);
                sizeFiledOffset = m_chunkStartPos;
            }
 
            m_device.seek(sizeFiledOffset);
            const OffsetType realObjectSize = writtenDataSize;
            SAFE_WRITE_EX(byteOrder, m_device, realObjectSize);
            m_device.seek(currentPos);
        } catch (ASLWriteException &e) {
            warnKrita << PREPEND_METHOD(e.what());
        }
    }

References KisAslWriterUtils::alignOffsetCeil(), KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::m_alignOnExit, KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::m_chunkStartPos, KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::m_device, KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::m_externalSizeTagOffset, PREPEND_METHOD, SAFE_WRITE_EX, and warnKrita.

Member Data Documentation

m_alignOnExit

template<class OffsetType , psd_byte_order byteOrder>

qint64 KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::m_alignOnExit

private

Definition at line 214 of file kis_asl_writer_utils.h.

m_chunkStartPos

template<class OffsetType , psd_byte_order byteOrder>

qint64 KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::m_chunkStartPos

private

Definition at line 212 of file kis_asl_writer_utils.h.

m_device

template<class OffsetType , psd_byte_order byteOrder>

QIODevice& KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::m_device

private

Definition at line 213 of file kis_asl_writer_utils.h.

m_externalSizeTagOffset

template<class OffsetType , psd_byte_order byteOrder>

qint64 KisAslWriterUtils::OffsetStreamPusher< OffsetType, byteOrder >::m_externalSizeTagOffset

private

Definition at line 215 of file kis_asl_writer_utils.h.

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The documentation for this class was generated from the following file:

• libs/psdutils/asl/kis_asl_writer_utils.h