// this is a mimic of Navigator code in CNetscapeFont::Initialize()
// return -1 if failed.
int CyaFont::CalculateMeanWidth( HDC hDC, BOOL isUnicode )
{
// calculate the mean width
m_iMeanWidth = 0;
if( isUnicode ) {
m_iMeanWidth = CASTINT(MeasureTextWidth( hDC, "\x0W\x0w", 4, NULL, 0 ));
} else {
m_iMeanWidth = CASTINT(MeasureTextWidth( hDC, "Ww", 2, NULL, 0 ));
}
m_iMeanWidth = m_iMeanWidth / 2 ;
return( m_iMeanWidth );
}
void FormatText::MeasureText(FTTextureFont* font, const char* text, float maxwidth, Vector* sizeOut)
{
if(maxwidth < 1)
{
float width = MeasureTextWidth(font, text);
float height = FormatText::GetFaceMaxHeight(font);// * 0.75; // Do I really want this scaled?
sizeOut->SetXyzw(width, height, 0, 0);
return;
}
else
{
float outLongestLine = -1;
float lines = (float) CountLines(font, text, maxwidth, &outLongestLine);
float width = outLongestLine;
if(lines == 1)
{
width = MeasureTextWidth(font, text);
}
float height = lines * FormatText::GetFaceMaxHeight(font);
sizeOut->SetXyzw(width, height, 0, 0);
return;
}
}
void FormatText::PushText(FTTextureFont* font,
float x,
float y,
const char* text,
const Vector& colour,
AlignX::Enum alignX,
AlignY::Enum alignY)
{
// Apply X alignment local x = self:ApplyAlignX(x, text)
{
if(alignX == AlignX::Right) // if self.mAlignX == "right" then
{
x -= MeasureTextWidth(font, text);//local width = self:MeasureText(text)
}
else if(alignX == AlignX::Center) // elseif self.mAlignX == "center" then
{
x -= MeasureTextWidth(font, text) / 2;
}
}
// local y = self:ApplyAlignY(y)
// The numbers are "ratio-ed" down because the height is from the bottom
// of the glyph to the top, regardless of where the baseline. So this is
// simple heurisitc that guesses the height of the face above the base line
// only.
{
if(alignY == AlignY::Top)
{
float maxHeight = FormatText::GetFaceMaxHeight(font) * 0.75;
y -= maxHeight;
}
else if(alignY == AlignY::Center)
{
float halfMaxHeight = FormatText::GetFaceMaxHeight(font) * 0.25;
y -= halfMaxHeight;
}
}
FTTextureFontImpl* impl = (FTTextureFontImpl*) font->GetImpl();
FTGlyphContainer* glyphList = impl->GetGlyphList();
FTCharmap* charMap = glyphList->GetCharmap();
FTVector<FTGlyph*>* glyphVector = glyphList->GetGlyphVector();
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_TEXTURE_2D);
#ifndef ANDROID
glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT);
FTTextureGlyphImpl::ResetActiveTexture();
#endif
#ifdef ANDROID
impl->PreRender();
#endif
int prevC = -1; // local prevC = nil
for (int i = 0; text[i] != '\0'; i++)
{
int c = text[i];
if(prevC != -1)
{
x += FormatText::GetKern(font, prevC, c);
}
{ // Actually do the render
unsigned int charCode = (unsigned int) c;
// This isn't just a check! It's lazy loader
if(!impl->CheckGlyph(charCode))
{
return;
}
unsigned int index = charMap->GlyphListIndex(charCode);
(*glyphVector)[index]->Render(FTPoint(x, y), FTGL::RENDER_ALL);
}
prevC = c;
}
#ifndef ANDROID
glPopAttrib();
#endif
#ifdef ANDROID
impl->PostRender();
#endif
}
BOOL CyaFont::MeasureTextSize( HDC hDC, jbyte *str, jsize strLen, jint *charLocs, jsize charLoc_len, LPSIZE lpSize)
{
lpSize->cx = CASTINT(MeasureTextWidth( hDC, str, strLen, charLocs, charLoc_len ));
lpSize->cy = GetHeight();
return( lpSize->cx >= 0? TRUE : FALSE );
}
