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djvu get glyphs separately from paint

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Kulikova Svetlana
2021-07-30 18:27:49 +03:00
parent ef7281f362
commit 18a4775984
11 changed files with 323 additions and 218 deletions
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129
DjVuFile/DjVuFileImplementation.h
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@ -75,136 +75,13 @@ public:
void SetTempDirectory(const std::wstring& wsDirectory);
int GetPagesCount() const;
void GetPageInfo(int nPageIndex, double* pdWidth, double* pdHeight, double* pdDpiX, double* pdDpiY) const;
void DrawPageOnRenderer(IRenderer* pRenderer, int nPageIndex, bool* pBreak, double dKoefX = 0, double dKoefY = 0);
void DrawPageOnRenderer(IRenderer* pRenderer, int nPageIndex, bool* pBreak);
BYTE* ConvertToPixels(int nPageIndex, const int& nRasterW = -1, const int& nRasterH = -1);
void ConvertToRaster(int nPageIndex, const std::wstring& wsDstPath, int nImageType, const int& nRasterW = -1, const int& nRasterH = -1);
void ConvertToPdf(const std::wstring& wsDstPath);
#ifdef WASM_MODE
class CData
{
protected:
unsigned char* m_pData;
size_t m_lSize;
unsigned char* m_pDataCur;
size_t m_lSizeCur;
public:
CData()
{
m_pData = NULL;
m_lSize = 0;
m_pDataCur = m_pData;
m_lSizeCur = m_lSize;
}
virtual ~CData()
{
Clear();
}
inline void AddSize(size_t nSize)
{
if (NULL == m_pData)
{
m_lSize = 1000;
if (nSize > m_lSize)
m_lSize = nSize;
m_pData = (unsigned char*)malloc(m_lSize * sizeof(unsigned char));
m_lSizeCur = 0;
m_pDataCur = m_pData;
return;
}
if ((m_lSizeCur + nSize) > m_lSize)
{
while ((m_lSizeCur + nSize) > m_lSize)
m_lSize *= 2;
unsigned char* pRealloc = (unsigned char*)realloc(m_pData, m_lSize * sizeof(unsigned char));
if (NULL != pRealloc)
{
m_pData = pRealloc;
m_pDataCur = m_pData + m_lSizeCur;
}
else
{
unsigned char* pMalloc = (unsigned char*)malloc(m_lSize * sizeof(unsigned char));
memcpy(pMalloc, m_pData, m_lSizeCur * sizeof(unsigned char));
free(m_pData);
m_pData = pMalloc;
m_pDataCur = m_pData + m_lSizeCur;
}
}
}
public:
void AddInt(unsigned int value)
{
AddSize(4);
memcpy(m_pDataCur, &value, sizeof(unsigned int));
m_pDataCur += 4;
m_lSizeCur += 4;
}
void WriteString(unsigned char* value, unsigned int len)
{
AddSize(len + 4);
memcpy(m_pDataCur, &len, sizeof(unsigned int));
m_pDataCur += 4;
m_lSizeCur += 4;
memcpy(m_pDataCur, value, len);
m_pDataCur += len;
m_lSizeCur += len;
}
unsigned char* GetBuffer()
{
return m_pData;
}
void Clear()
{
if (m_pData) free(m_pData);
m_pData = NULL;
m_lSize = 0;
m_pDataCur = m_pData;
m_lSizeCur = 0;
}
void ClearWithoutAttack()
{
m_pData = NULL;
m_lSize = 0;
m_pDataCur = m_pData;
m_lSizeCur = 0;
}
void ClearNoAttack()
{
m_pDataCur = m_pData;
m_lSizeCur = 0;
}
unsigned int GetSize()
{
return (unsigned int)m_lSizeCur;
}
void SkipLen()
{
AddInt(0);
}
void WriteLen()
{
unsigned int len = (unsigned int)m_lSizeCur;
memcpy(m_pData, &len, sizeof(unsigned int));
}
};
BYTE* GetStructure();
BYTE* GetPageGlyphs();
CData* m_pGlyphs;
BYTE* GetPageGlyphs(int nPageIndex, const int& nRasterW, const int& nRasterH);
#endif
private:
@ -212,7 +89,7 @@ private:
void CreateFrame(IRenderer* pRenderer, GP<DjVuImage>& pImage, int nPage, XmlUtils::CXmlNode& oText);
void CreatePdfFrame(IRenderer* pRenderer, GP<DjVuImage>& pImage, int nPage, XmlUtils::CXmlNode& oText);
void CreateGrFrame(IRenderer* pRenderer, GP<DjVuImage>& pImage, bool* pBreak);
XmlUtils::CXmlNode ParseText(GP<DjVuImage> pPage, double dKoefX, double dKoefY);
XmlUtils::CXmlNode ParseText(GP<DjVuImage> pPage);
void TextToRenderer(IRenderer* pRenderer, XmlUtils::CXmlNode text, double koef, bool isView = true);
void DrawPageText(IRenderer* pRenderer, double* pdCoords, const std::wstring& wsText);
void ParseCoords(const std::wstring& wsCoordsStr, double* pdCoords, double dKoef);