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/*
* targavfd plugin for VDR (C++)
*
* (C) 2010 Andreas Brachold <vdr07 AT deltab de>
* Glyph handling based on <vdr/font.c>
*
* This targavfd plugin 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, version 3 of the License.
*
* See the files README and COPYING for details.
*
*/
#ifndef __VFD_FONT_H___
#define __VFD_FONT_H___
#include <vdr/config.h>
#include <vdr/font.h>
#include <fontconfig/fontconfig.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#include "bitmap.h"
struct cVFDKerning {
uint prevSym;
int kerning;
cVFDKerning(uint PrevSym, int Kerning = 0) { prevSym = PrevSym; kerning = Kerning; }
};
class cVFDGlyph : public cListObject {
private:
uint charCode;
uchar *bitmap;
int advanceX;
int advanceY;
int left; ///< The bitmap's left bearing expressed in integer pixels.
int top; ///< The bitmap's top bearing expressed in integer pixels.
int width; ///< The number of pixels per bitmap row.
int rows; ///< The number of bitmap rows.
int pitch; ///< The pitch's absolute value is the number of bytes taken by one bitmap row, including padding.
cVector<cVFDKerning> kerningCache;
public:
cVFDGlyph(uint CharCode, FT_GlyphSlotRec_ *GlyphData);
virtual ~cVFDGlyph();
uint CharCode(void) const { return charCode; }
uchar *Bitmap(void) const { return bitmap; }
int AdvanceX(void) const { return advanceX; }
int AdvanceY(void) const { return advanceY; }
int Left(void) const { return left; }
int Top(void) const { return top; }
int Width(void) const { return width; }
int Rows(void) const { return rows; }
int Pitch(void) const { return pitch; }
int GecVFDKerningCache(uint PrevSym) const;
void SecVFDKerningCache(uint PrevSym, int Kerning);
};
class cVFDFont : public cFont {
private:
int height;
int bottom;
FT_Library library; ///< Handle to library
FT_Face face; ///< Handle to face object
mutable cList<cVFDGlyph> glyphCacheMonochrome;
int Bottom(void) const { return bottom; }
int Kerning(cVFDGlyph *Glyph, uint PrevSym) const;
cVFDGlyph* Glyph(uint CharCode) const;
virtual void DrawText(cBitmap*, int, int, const char*, tColor, tColor, int) const {};
#if APIVERSNUM >= 10717
virtual void DrawText(cPixmap*, int, int, const char*, tColor, tColor, int) const {};
#endif
public:
cVFDFont(const char *Name, int CharHeight, int CharWidth = 0);
virtual ~cVFDFont();
virtual int Width(uint c) const;
virtual int Width(const char *s) const;
virtual int Height(void) const { return height; }
int DrawText(cVFDBitmap *Bitmap, int x, int y, const char *s, int Width) const;
};
#endif
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