bluecore/ftgl/FTOutlineGlyph.cpp

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2008-01-16 12:45:17 +01:00
#include "FTOutlineGlyph.h"
#include "FTVectoriser.h"
FTOutlineGlyph::FTOutlineGlyph( FT_GlyphSlot glyph, bool useDisplayList)
: FTGlyph( glyph),
glList(0)
{
if( ft_glyph_format_outline != glyph->format)
{
err = 0x14; // Invalid_Outline
return;
}
FTVectoriser vectoriser( glyph);
size_t numContours = vectoriser.ContourCount();
if ( ( numContours < 1) || ( vectoriser.PointCount() < 3))
{
return;
}
if(useDisplayList)
{
glList = glGenLists(1);
glNewList( glList, GL_COMPILE);
}
for( unsigned int c = 0; c < numContours; ++c)
{
const FTContour* contour = vectoriser.Contour(c);
glBegin( GL_LINE_LOOP);
for( unsigned int pointIndex = 0; pointIndex < contour->PointCount(); ++pointIndex)
{
FTPoint point = contour->Point(pointIndex);
glVertex2f( point.X() / 64.0f, point.Y() / 64.0f);
}
glEnd();
}
if(useDisplayList)
{
glEndList();
}
}
FTOutlineGlyph::~FTOutlineGlyph()
{
glDeleteLists( glList, 1);
}
const FTPoint& FTOutlineGlyph::Render( const FTPoint& pen)
{
glTranslatef( pen.X(), pen.Y(), 0.0f);
if( glList)
{
glCallList( glList);
}
return advance;
}