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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2005 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*/
#ifndef FONT_H
#define FONT_H
#include "common/str.h"
#include "graphics/surface.h"
namespace Graphics {
// Text alignment modes for drawString()
enum TextAlignment {
kTextAlignLeft,
kTextAlignCenter,
kTextAlignRight
};
/**
* Instances of this class represent a distinct font, with a built-in renderer.
* @todo Maybe move the high-level methods (drawString etc.) to a separate
* FontRenderer class? That way, we could have different variants... ?
* @todo Add more parameters to drawString, or additional similar methods,
* featuring abilities like
* - rendering with wrap-around instead of inserting an ellipsis or
* cutting them; needs a 'height' parameter
* - rendering multi-line strings (essentially, invoke the regular
* drawString for each line, and advance one line)
* - combinations of the two above: honor line feeds, and also wrap
* overlong lines
*/
class Font {
public:
virtual int getFontHeight() const = 0;
virtual int getMaxCharWidth() const = 0;
virtual int getCharWidth(byte chr) const = 0;
virtual void drawChar(const Surface *dst, byte chr, int x, int y, uint32 color, int scaleFactor = 1) const = 0;
void drawString(const Surface *dst, const Common::String &str, int x, int y, int w, uint32 color, TextAlignment align = kTextAlignLeft, int deltax = 0, bool useEllipsis = true, int scaleFactor = 1) const;
int getStringWidth(const Common::String &str) const;
};
class ScummFont : public Font {
public:
virtual int getFontHeight() const { return 8; }
virtual int getMaxCharWidth() const { return 8; };
virtual int getCharWidth(byte chr) const;
virtual void drawChar(const Surface *dst, byte chr, int x, int y, uint32 color, int scaleFactor) const;
};
typedef unsigned short bitmap_t; /* bitmap image unit size*/
/* builtin C-based proportional/fixed font structure */
/* based on The Microwindows Project http://microwindows.org */
struct FontDesc {
const char * name; /* font name*/
int maxwidth; /* max width in pixels*/
int height; /* height in pixels*/
int ascent; /* ascent (baseline) height*/
int firstchar; /* first character in bitmap*/
int size; /* font size in glyphs*/
const bitmap_t* bits; /* 16-bit right-padded bitmap data*/
const unsigned long* offset; /* offsets into bitmap data*/
const unsigned char* width; /* character widths or NULL if fixed*/
int defaultchar; /* default char (not glyph index)*/
long bits_size; /* # words of bitmap_t bits*/
};
class NewFont : public Font {
protected:
FontDesc desc;
public:
NewFont(const FontDesc &d) : desc(d) {}
virtual int getFontHeight() const { return desc.height; }
virtual int getMaxCharWidth() const { return desc.maxwidth; };
virtual int getCharWidth(byte chr) const;
virtual void drawChar(const Surface *dst, byte chr, int x, int y, uint32 color, int scaleFactor) const;
};
} // End of namespace Graphics
#endif
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