CFX_ByteString CPDF_InterForm::GetNativeFont(void* pLogFont) {
#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
return GetNativeFont(GetNativeCharSet(), pLogFont);
#else
return CFX_ByteString();
#endif
}
CFX_ByteString CPWL_FontMap::GetNativeFontName(int32_t nCharset)
{
//searching native font is slow, so we must save time
for (int32_t i=0,sz=m_aNativeFont.GetSize(); i<sz; i++)
{
if (CPWL_FontMap_Native* pData = m_aNativeFont.GetAt(i))
{
if (pData->nCharset == nCharset)
return pData->sFontName;
}
}
CFX_ByteString sNew = GetNativeFont(nCharset);
if (!sNew.IsEmpty())
{
CPWL_FontMap_Native* pNewData = new CPWL_FontMap_Native;
pNewData->nCharset = nCharset;
pNewData->sFontName = sNew;
m_aNativeFont.Add(pNewData);
}
return sNew;
}
CPDF_Font* CPWL_FontMap::AddSystemFont(CPDF_Document* pDoc, CFX_ByteString& sFontName, uint8_t nCharset)
{
if (!pDoc) return NULL;
if (sFontName.IsEmpty()) sFontName = GetNativeFont(nCharset);
if (nCharset == DEFAULT_CHARSET) nCharset = GetNativeCharset();
if (m_pSystemHandler)
return m_pSystemHandler->AddNativeTrueTypeFontToPDF(pDoc, sFontName, nCharset);
return NULL;
}
CPDF_Font* CPDF_InterForm::AddNativeFont(uint8_t charSet,
CPDF_Document* pDocument) {
if (!pDocument)
return nullptr;
#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
LOGFONTA lf;
CFX_ByteString csFontName = GetNativeFont(charSet, &lf);
if (!csFontName.IsEmpty()) {
if (csFontName == "Helvetica")
return AddStandardFont(pDocument, csFontName);
return pDocument->AddWindowsFont(&lf, false, true);
}
#endif
return nullptr;
}
// --------------------------------------------------------------
void
GFontWin32GDIPlus::GetExtent( const char * str, int inCharCount, float * outWidth,
float * outHeight, VGDevice * context ) const
{
if (!inCharCount) {
*outWidth = *outHeight = 0;
return;
}
// convert input string
DWORD count = (DWORD)mbstowcs(NULL, str, inCharCount);
WCHAR * wstr = (WCHAR*) malloc ((count + 1) * sizeof(WCHAR));
mbstowcs(wstr, str, inCharCount);
//std::string s(str);
//std::wstring wstr(s.length(),L' ');
//std::copy(s.begin(), s.end(), wstr.begin());
Graphics* gdiContext = (Graphics*) GetContext( context );
/* -- known Gdi+ issue:
We must use the following way to determine correct font extent
because typical Graphics::MeasureString() method doesn't work
properly (return values are incorrect due to antialiasing)
*/
Font* dgiFont = GetNativeFont();
// Layout rectangles used for drawing strings
RectF layoutRect_A(0.0f, 0.0f, 1300.0f, 1300.0f);
// 1 range of character positions within the string
CharacterRange charRange(0, inCharCount);
// String format used to apply to string when drawing
StringFormat strFormat;
// Set three ranges of character positions.
strFormat.SetMeasurableCharacterRanges(1, &charRange);
Region *pCharRangeRegions = new Region();
// Get the regions that correspond to the ranges within the string when
// layout rectangle A is used.
gdiContext->MeasureCharacterRanges( wstr, inCharCount, dgiFont, layoutRect_A, &strFormat, 1, pCharRangeRegions);
RectF boundRect;
pCharRangeRegions->GetBounds( &boundRect, gdiContext);
*outWidth = boundRect.Width;
*outHeight = boundRect.Height;
free (wstr);
}
CPDF_Font* CPDF_InterForm::AddNativeFont(uint8_t charSet,
const CPDF_Document* pDocument) {
if (pDocument == NULL) {
return NULL;
}
CPDF_Font* pFont = NULL;
#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
LOGFONTA lf;
CFX_ByteString csFontName = GetNativeFont(charSet, &lf);
if (!csFontName.IsEmpty()) {
if (csFontName == "Helvetica") {
pFont = AddStandardFont(pDocument, csFontName);
} else {
pFont = ((CPDF_Document*)pDocument)->AddWindowsFont(&lf, FALSE, TRUE);
}
}
#endif
return pFont;
}
// --------------------------------------------------------------
void
GFontWin32GDIPlus::GetExtent( unsigned char c, float * outWidth,
float * outHeight, VGDevice * context ) const
{
WCHAR wstr [] = L"0";
mbstowcs(wstr, (const char*)&c, 1);
Graphics* gdiContext = (Graphics*) GetContext( context );
/* -- known Gdi+ issue:
We must use the following way to determine correct font extent
because typical Graphics::MeasureString() method doesn't work
properly (return values are incorrect due to antialiasing)
*/
Font* dgiFont = GetNativeFont();
// Layout rectangles used for drawing strings
RectF layoutRect_A(0.0f, 0.0f, 1300.0f, 1300.0f);
// 1 range of character positions within the string
CharacterRange charRange(0, 1);
// String format used to apply to string when drawing
StringFormat strFormat;
// Set three ranges of character positions.
strFormat.SetMeasurableCharacterRanges(1, &charRange);
Region *pCharRangeRegions = new Region();
// Get the regions that correspond to the ranges within the string when
// layout rectangle A is used.
gdiContext->MeasureCharacterRanges( wstr, 1, dgiFont, layoutRect_A, &strFormat, 1, pCharRangeRegions);
RectF boundRect;
pCharRangeRegions->GetBounds( &boundRect, gdiContext);
*outHeight = boundRect.Height;
*outWidth = boundRect.Width;
// in some cases (when some symbols must be forced into char map), extent needs to be fixed
if (c == 139) *outWidth = 6.0;
}
// --------------------------------------------------------------
GFontWin32GDIPlus::~GFontWin32GDIPlus()
{
Font* winFont = GetNativeFont();
if( winFont )
delete ( winFont );
}
