mirror of
https://github.com/AquariaOSE/Aquaria.git
synced 2024-11-25 09:44:02 +00:00
138 lines
3.5 KiB
C++
138 lines
3.5 KiB
C++
#ifndef __FTSize__
|
|
#define __FTSize__
|
|
|
|
|
|
#include <ft2build.h>
|
|
#include FT_FREETYPE_H
|
|
|
|
#include "FTGL.h"
|
|
|
|
|
|
|
|
/**
|
|
* FTSize class provides an abstraction layer for the Freetype Size.
|
|
*
|
|
* @see "Freetype 2 Documentation"
|
|
*
|
|
*/
|
|
class FTGL_EXPORT FTSize
|
|
{
|
|
public:
|
|
/**
|
|
* Default Constructor
|
|
*/
|
|
FTSize();
|
|
|
|
/**
|
|
* Destructor
|
|
*/
|
|
virtual ~FTSize();
|
|
|
|
/**
|
|
* Sets the char size for the current face.
|
|
*
|
|
* This doesn't guarantee that the size was set correctly. Clients
|
|
* should check errors.
|
|
*
|
|
* @param face Parent face for this size object
|
|
* @param point_size the face size in points (1/72 inch)
|
|
* @param x_resolution the horizontal resolution of the target device.
|
|
* @param y_resolution the vertical resolution of the target device.
|
|
* @return <code>true</code> if the size has been set. Clients should check Error() for more information if this function returns false()
|
|
*/
|
|
bool CharSize( FT_Face* face, unsigned int point_size, unsigned int x_resolution, unsigned int y_resolution);
|
|
|
|
/**
|
|
* get the char size for the current face.
|
|
*
|
|
* @return The char size in points
|
|
*/
|
|
unsigned int CharSize() const;
|
|
|
|
/**
|
|
* Gets the global ascender height for the face in pixels.
|
|
*
|
|
* @return Ascender height
|
|
*/
|
|
float Ascender() const;
|
|
|
|
/**
|
|
* Gets the global descender height for the face in pixels.
|
|
*
|
|
* @return Ascender height
|
|
*/
|
|
float Descender() const;
|
|
|
|
/**
|
|
* Gets the global face height for the face.
|
|
*
|
|
* If the face is scalable this returns the height of the global
|
|
* bounding box which ensures that any glyph will be less than or
|
|
* equal to this height. If the font isn't scalable there is no
|
|
* guarantee that glyphs will not be taller than this value.
|
|
*
|
|
* @return height in pixels.
|
|
*/
|
|
float Height() const;
|
|
|
|
/**
|
|
* Gets the global face width for the face.
|
|
*
|
|
* If the face is scalable this returns the width of the global
|
|
* bounding box which ensures that any glyph will be less than or
|
|
* equal to this width. If the font isn't scalable this value is
|
|
* the max_advance for the face.
|
|
*
|
|
* @return width in pixels.
|
|
*/
|
|
float Width() const;
|
|
|
|
/**
|
|
* Gets the underline position for the face.
|
|
*
|
|
* @return underline position in pixels
|
|
*/
|
|
float Underline() const;
|
|
|
|
/**
|
|
* Queries for errors.
|
|
*
|
|
* @return The current error code.
|
|
*/
|
|
FT_Error Error() const { return err; }
|
|
|
|
private:
|
|
/**
|
|
* The current Freetype face that this FTSize object relates to.
|
|
*/
|
|
FT_Face* ftFace;
|
|
|
|
/**
|
|
* The Freetype size.
|
|
*/
|
|
FT_Size ftSize;
|
|
|
|
/**
|
|
* The size in points.
|
|
*/
|
|
unsigned int size;
|
|
|
|
/**
|
|
* The horizontal resolution.
|
|
*/
|
|
unsigned int xResolution;
|
|
|
|
/**
|
|
* The vertical resolution.
|
|
*/
|
|
unsigned int yResolution;
|
|
|
|
/**
|
|
* Current error code. Zero means no error.
|
|
*/
|
|
FT_Error err;
|
|
|
|
};
|
|
|
|
#endif // __FTSize__
|
|
|