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/*!
\file GUIFont.h
\brief
*/
#ifndef CGUILIB_GUIFONTTTF_H
#define CGUILIB_GUIFONTTTF_H
#pragma once
/*
* Copyright (C) 2005-2008 Team XBMC
* http://www.xbmc.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
// forward definition
class CBaseTexture;
struct FT_FaceRec_;
struct FT_LibraryRec_;
struct FT_GlyphSlotRec_;
struct FT_BitmapGlyphRec_;
typedef struct FT_FaceRec_ *FT_Face;
typedef struct FT_LibraryRec_ *FT_Library;
typedef struct FT_GlyphSlotRec_ *FT_GlyphSlot;
typedef struct FT_BitmapGlyphRec_ *FT_BitmapGlyph;
typedef uint32_t character_t;
typedef uint32_t color_t;
typedef std::vector<character_t> vecText;
typedef std::vector<color_t> vecColors;
/*!
\ingroup textures
\brief
*/
typedef struct _SVertex
{
float u, v;
unsigned char r, g, b, a;
float x, y, z;
} SVertex;
class CGUIFontTTFBase
{
friend class CGUIFont;
public:
CGUIFontTTFBase(const CStdString& strFileName);
virtual ~CGUIFontTTFBase(void);
void Clear();
bool Load(const CStdString& strFilename, float height = 20.0f, float aspect = 1.0f, float lineSpacing = 1.0f);
virtual void Begin() = 0;
virtual void End() = 0;
const CStdString& GetFileName() const { return m_strFileName; };
protected:
struct Character
{
short offsetX, offsetY;
float left, top, right, bottom;
float advance;
character_t letterAndStyle;
};
void AddReference();
void RemoveReference();
float GetTextWidthInternal(vecText::const_iterator start, vecText::const_iterator end);
float GetCharWidthInternal(character_t ch);
float GetTextHeight(float lineSpacing, int numLines) const;
float GetLineHeight(float lineSpacing) const;
float GetFontHeight() const { return m_height; }
void DrawTextInternal(float x, float y, const vecColors &colors, const vecText &text,
uint32_t alignment, float maxPixelWidth, bool scrolling);
float m_height;
CStdString m_strFilename;
// Stuff for pre-rendering for speed
inline Character *GetCharacter(character_t letter);
bool CacheCharacter(wchar_t letter, uint32_t style, Character *ch);
void RenderCharacter(float posX, float posY, const Character *ch, color_t color, bool roundX);
void ClearCharacterCache();
virtual CBaseTexture* ReallocTexture(unsigned int& newHeight) = 0;
virtual bool CopyCharToTexture(FT_BitmapGlyph bitGlyph, Character *ch) = 0;
virtual void DeleteHardwareTexture() = 0;
virtual void RenderInternal(SVertex* v) = 0;
// modifying glyphs
void EmboldenGlyph(FT_GlyphSlot slot);
void ObliqueGlyph(FT_GlyphSlot slot);
CBaseTexture* m_texture; // texture that holds our rendered characters (8bit alpha only)
unsigned int m_textureWidth; // width of our texture
unsigned int m_textureHeight; // heigth of our texture
int m_posX; // current position in the texture
int m_posY;
color_t m_color;
Character *m_char; // our characters
Character *m_charquick[256*4]; // ascii chars (4 styles) here
int m_maxChars; // size of character array (can be incremented)
int m_numChars; // the current number of cached characters
float m_ellipsesWidth; // this is used every character (width of '.')
unsigned int m_cellBaseLine;
unsigned int m_cellHeight;
unsigned int m_nestedBeginCount; // speedups
// freetype stuff
FT_Face m_face;
float m_originX;
float m_originY;
bool m_bTextureLoaded;
unsigned int m_nTexture;
SVertex* m_vertex;
int m_vertex_count;
int m_vertex_size;
float m_textureScaleX;
float m_textureScaleY;
static int justification_word_weight;
CStdString m_strFileName;
private:
int m_referenceCount;
};
#if defined(HAS_GL) || defined(HAS_GLES)
#include "GUIFontTTFGL.h"
#define CGUIFontTTF CGUIFontTTFGL
#elif defined(HAS_DX)
#include "GUIFontTTFDX.h"
#define CGUIFontTTF CGUIFontTTFDX
#endif
#endif
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