bool C4FontLoader::InitFont(CStdFont &rFont, const char *szFontName, FontType eType, int32_t iSize, C4GroupSet *pGfxGroups, bool fDoShadow)
{
// safety
if (!szFontName || !*szFontName)
{
LogFatal(LoadResStr("IDS_ERR_INITFONTS"));
return false;
}
// get font to load
// pFontDefs may be NULL if no fonts are loaded; but then iFontDefCount is zero as well
// the function must not be aborted, because a standard windows font may be loaded
std::vector<C4FontDef>::iterator pFontDefC = FontDefs.begin(), pFontDef = FontDefs.end();
while (pFontDefC != FontDefs.end())
{
// check font
if (pFontDefC->Name == szFontName)
{
int32_t iSizeDiff = Abs(pFontDefC->iSize - iSize);
// better match than last font?
if (pFontDef == FontDefs.end() || Abs(pFontDef->iSize - iSize) >= iSizeDiff)
pFontDef = pFontDefC;
}
// check next one
++pFontDefC;
}
// if def has not been found, use the def as font name
// determine font def string
const char *szFontString = szFontName;
// special: Fonts without shadow are always newly rendered
if (!fDoShadow) { pFontDef=FontDefs.end(); }
if (pFontDef!=FontDefs.end()) switch (eType)
{
case C4FT_Log: szFontString = pFontDef->LogFont.getData(); break;
case C4FT_MainSmall:szFontString = pFontDef->SmallFont.getData(); break;
case C4FT_Main: szFontString = pFontDef->Font.getData(); break;
case C4FT_Caption: szFontString = pFontDef->CaptionFont.getData(); break;
case C4FT_Title: szFontString = pFontDef->TitleFont.getData(); break;
default: LogFatal(LoadResStr("IDS_ERR_INITFONTS")); return false; // invalid call
}
// font not assigned?
if (!*szFontString)
{
// invalid call or spec
LogFatal(LoadResStr("IDS_ERR_INITFONTS")); return false;
}
// get font name
char FontFaceName[C4MaxName+1], FontParam[C4MaxName+1];
SCopyUntil(szFontString, FontFaceName, ',', C4MaxName);
// is it an image file?
const char *szExt = GetExtension(FontFaceName);
if (SEqualNoCase(szExt, "png") || SEqualNoCase(szExt, "bmp"))
{
// image file name: load bitmap font from image file
// if no graphics group is given, do not load yet
if (!pGfxGroups)
{
LogFatal(LoadResStr("IDS_ERR_INITFONTS"));
return false;
}
// indent given?
int32_t iIndent = 0;
if (SCopySegment(szFontString, 1, FontParam, ',', C4MaxName))
sscanf(FontParam, "%i", &iIndent);
// load font face from gfx group
int32_t iGrpId;
C4Group *pGrp = pGfxGroups->FindEntry(FontFaceName, NULL, &iGrpId);
if (!pGrp)
{
LogFatal(LoadResStr("IDS_ERR_INITFONTS"));
return false;
}
// check if it's already loaded from that group with that parameters
if (!rFont.IsSameAsID(FontFaceName, iGrpId, iIndent))
{
// it's not; so (re-)load it now!
if (rFont.IsInitialized())
{
// reloading
rFont.Clear();
LogF(LoadResStr("IDS_PRC_UPDATEFONT"), FontFaceName, iIndent, 0);
}
C4Surface sfc;
if (!sfc.Load(*pGrp, FontFaceName))
{
LogFatal(LoadResStr("IDS_ERR_INITFONTS"));
return false;
}
// init font from face
try
{
rFont.Init(GetFilenameOnly(FontFaceName), &sfc, iIndent);
}
catch (std::runtime_error & e)
{
LogFatal(e.what());
LogFatal(LoadResStr("IDS_ERR_INITFONTS"));
return false;
}
rFont.id = iGrpId;
}
}
else
{
int32_t iDefFontSize; DWORD dwDefWeight=FW_NORMAL;
#if defined(_WIN32) && !defined(HAVE_FREETYPE)
switch (eType)
{
case C4FT_Log: iDefFontSize = 8; break;
case C4FT_MainSmall:iDefFontSize = iSize+1; break;
case C4FT_Main: iDefFontSize = iSize+4; break;
case C4FT_Caption: iDefFontSize = iSize+6; dwDefWeight = FW_BOLD; break;
case C4FT_Title: iDefFontSize = iSize*3; break;
default: LogFatal(LoadResStr("IDS_ERR_INITFONTS")); return false; // invalid call
}
#else
switch (eType)
{
case C4FT_Log: iDefFontSize = iSize*12/14; break;
case C4FT_MainSmall:iDefFontSize = iSize*13/14; break;
case C4FT_Main: iDefFontSize = iSize; break;
case C4FT_Caption: iDefFontSize = iSize*16/14; /*dwDefWeight = FW_MEDIUM;*/ break;
case C4FT_Title: iDefFontSize = iSize*22/14; /*dwDefWeight = FW_MEDIUM;*/ break;
default: LogFatal(LoadResStr("IDS_ERR_INITFONTS")); return false; // invalid call
}
#endif
// regular font name: let WinGDI or Freetype draw a font with the given parameters
// font size given?
if (SCopySegment(szFontString, 1, FontParam, ',', C4MaxName))
sscanf(FontParam, "%i", &iDefFontSize);
// font weight given?
if (SCopySegment(szFontString, 2, FontParam, ',', C4MaxName))
sscanf(FontParam, "%i", &dwDefWeight);
// check if it's already loaded from that group with that parameters
if (!rFont.IsSameAs(FontFaceName, iDefFontSize, dwDefWeight))
{
// it's not; so (re-)load it now!
if (rFont.IsInitialized())
{
// reloading
rFont.Clear();
LogF(LoadResStr("IDS_PRC_UPDATEFONT"), FontFaceName, iDefFontSize, dwDefWeight);
}
// init with given font name
try
{
// check if one of the internally listed fonts should be used
C4VectorFont * pFont = pVectorFonts;
while (pFont)
{
if (SEqual(pFont->Name.getData(), FontFaceName))
{
if (InitFont(rFont, pFont, iDefFontSize, dwDefWeight, fDoShadow)) break;
}
pFont = pFont->pNext;
}
// no internal font matching? Then create one using the given face/filename (using a system font)
if (!pFont)
{
pFont = new C4VectorFont();
if (pFont->Init(FontFaceName, iDefFontSize, dwDefWeight, Config.General.LanguageCharset))
{
AddVectorFont(pFont);
if (!InitFont(rFont, pFont, iDefFontSize, dwDefWeight, fDoShadow))
throw std::runtime_error(FormatString("Error initializing font %s", FontFaceName).getData());
}
else
{
delete pFont;
// no match for font face found
throw std::runtime_error(FormatString("Font face %s undefined", FontFaceName).getData());
}
}
}
catch (std::runtime_error & e)
{
LogFatal(e.what());
LogFatal(LoadResStr("IDS_ERR_INITFONTS"));
return false;
}
rFont.id = 0;
}
}
// done, success
return true;
}
