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#ifndef __FTBBox__
#define __FTBBox__
#include <ft2build.h>
#include FT_FREETYPE_H
//#include FT_GLYPH_H
#include FT_OUTLINE_H
#include "FTGL.h"
#include "FTPoint.h"
/**
* FTBBox is a convenience class for handling bounding boxes.
*/
class FTGL_EXPORT FTBBox
{
public:
/**
* Default constructor. Bounding box is set to zero.
*/
FTBBox()
: lowerX(0.0f),
lowerY(0.0f),
lowerZ(0.0f),
upperX(0.0f),
upperY(0.0f),
upperZ(0.0f)
{}
/**
* Constructor.
*/
FTBBox( float lx, float ly, float lz, float ux, float uy, float uz)
: lowerX(lx),
lowerY(ly),
lowerZ(lz),
upperX(ux),
upperY(uy),
upperZ(uz)
{}
/**
* Constructor. Extracts a bounding box from a freetype glyph. Uses
* the control box for the glyph. <code>FT_Glyph_Get_CBox()</code>
*
* @param glyph A freetype glyph
*/
FTBBox( FT_GlyphSlot glyph)
: lowerX(0.0f),
lowerY(0.0f),
lowerZ(0.0f),
upperX(0.0f),
upperY(0.0f),
upperZ(0.0f)
{
FT_BBox bbox;
FT_Outline_Get_CBox( &(glyph->outline), &bbox);
lowerX = static_cast<float>( bbox.xMin) / 64.0f;
lowerY = static_cast<float>( bbox.yMin) / 64.0f;
lowerZ = 0.0f;
upperX = static_cast<float>( bbox.xMax) / 64.0f;
upperY = static_cast<float>( bbox.yMax) / 64.0f;
upperZ = 0.0f;
}
/**
* Destructor
*/
~FTBBox()
{}
/**
* Move the Bounding Box by a vector.
*
* @param distance The distance to move the bbox in 3D space.
*/
FTBBox& Move( FTPoint distance)
{
lowerX += distance.x;
lowerY += distance.y;
lowerZ += distance.z;
upperX += distance.x;
upperY += distance.y;
upperZ += distance.z;
return *this;
}
FTBBox& operator += ( const FTBBox& bbox)
{
lowerX = bbox.lowerX < lowerX? bbox.lowerX: lowerX;
lowerY = bbox.lowerY < lowerY? bbox.lowerY: lowerY;
lowerZ = bbox.lowerZ < lowerZ? bbox.lowerZ: lowerZ;
upperX = bbox.upperX > upperX? bbox.upperX: upperX;
upperY = bbox.upperY > upperY? bbox.upperY: upperY;
upperZ = bbox.upperZ > upperZ? bbox.upperZ: upperZ;
return *this;
}
void SetDepth( float depth)
{
upperZ = lowerZ + depth;
}
/**
* The bounds of the box
*/
// Make these ftPoints & private
float lowerX, lowerY, lowerZ, upperX, upperY, upperZ;
protected:
private:
};
#endif // __FTBBox__
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