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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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
* of the License, 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* This file is based on WME Lite.
* http://dead-code.org/redir.php?target=wmelite
* Copyright (c) 2011 Jan Nedoma
*/
#ifndef WINTERMUTE_BFONTTT_H
#define WINTERMUTE_BFONTTT_H
#include "BFontStorage.h"
#include "BFont.h"
#include "BSurface.h"
#define NUM_CACHED_TEXTS 30
class SDL_Surface;
namespace WinterMute {
class FontGlyphCache;
class CBFontTT : public CBFont {
private:
//////////////////////////////////////////////////////////////////////////
class CBCachedTTFontText {
public:
WideString m_Text;
int m_Width;
TTextAlign m_Align;
int m_MaxHeight;
int m_MaxLength;
CBSurface *m_Surface;
int m_Priority;
int m_TextOffset;
bool m_Marked;
CBCachedTTFontText() {
m_Text = L"";
m_Width = m_MaxHeight = m_MaxLength = -1;
m_Align = TAL_LEFT;
m_Surface = NULL;
m_Priority = -1;
m_TextOffset = 0;
m_Marked = false;
}
virtual ~CBCachedTTFontText() {
if (m_Surface) delete m_Surface;
}
};
public:
//////////////////////////////////////////////////////////////////////////
class CBTTFontLayer {
public:
CBTTFontLayer() {
m_OffsetX = m_OffsetY = 0;
m_Color = 0x00000000;
}
HRESULT Persist(CBPersistMgr *PersistMgr) {
PersistMgr->Transfer(TMEMBER(m_OffsetX));
PersistMgr->Transfer(TMEMBER(m_OffsetY));
PersistMgr->Transfer(TMEMBER(m_Color));
return S_OK;
}
int m_OffsetX;
int m_OffsetY;
uint32 m_Color;
};
//////////////////////////////////////////////////////////////////////////
class TextLine {
public:
TextLine(const WideString &text, int width) {
m_Text = text;
m_Width = width;
}
const WideString &GetText() const {
return m_Text;
}
int GetWidth() const {
return m_Width;
}
private:
WideString m_Text;
int m_Width;
};
typedef std::list<TextLine *> TextLineList;
public:
DECLARE_PERSISTENT(CBFontTT, CBFont)
CBFontTT(CBGame *inGame);
virtual ~CBFontTT(void);
virtual int GetTextWidth(byte *text, int MaxLenght = -1);
virtual int GetTextHeight(byte *text, int width);
virtual void DrawText(byte *text, int x, int y, int width, TTextAlign align = TAL_LEFT, int max_height = -1, int MaxLenght = -1);
virtual int GetLetterHeight();
HRESULT LoadBuffer(byte *Buffer);
HRESULT LoadFile(char *Filename);
static unsigned long FTReadSeekProc(FT_Stream stream, unsigned long offset, unsigned char *buffer, unsigned long count);
static void FTCloseProc(FT_Stream stream);
FontGlyphCache *GetGlyphCache() {
return m_GlyphCache;
}
float GetLineHeight() const {
return m_LineHeight;
}
void AfterLoad();
void InitLoop();
private:
HRESULT ParseLayer(CBTTFontLayer *Layer, byte *Buffer);
void WrapText(const WideString &text, int maxWidth, int maxHeight, TextLineList &lines);
void MeasureText(const WideString &text, int maxWidth, int maxHeight, int &textWidth, int &textHeight);
float GetKerning(wchar_t leftChar, wchar_t rightChar);
void PrepareGlyphs(const WideString &text);
void CacheGlyph(wchar_t ch);
CBSurface *RenderTextToTexture(const WideString &text, int width, TTextAlign align, int maxHeight, int &textOffset);
void BlitSurface(SDL_Surface *src, SDL_Surface *target, SDL_Rect *targetRect);
CBCachedTTFontText *m_CachedTexts[NUM_CACHED_TEXTS];
HRESULT InitFont();
FT_Stream m_FTStream;
FT_Face m_FTFace;
FontGlyphCache *m_GlyphCache;
float m_Ascender;
float m_Descender;
float m_LineHeight;
float m_UnderlinePos;
float m_PointSize;
float m_VertDpi;
float m_HorDpi;
size_t m_MaxCharWidth;
size_t m_MaxCharHeight;
public:
bool m_IsBold;
bool m_IsItalic;
bool m_IsUnderline;
bool m_IsStriked;
int m_FontHeight;
char *m_FontFile;
CBArray<CBTTFontLayer *, CBTTFontLayer *> m_Layers;
void ClearCache();
};
} // end of namespace WinterMute
#endif
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