mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-29 05:03:29 +00:00
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
/* 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(Surface *dst, byte chr, int x, int y, uint32 color) const = 0;
|
|
|
|
void drawString(Surface *dst, const Common::String &str, int x, int y, int w, uint32 color, TextAlignment align = kTextAlignLeft, int deltax = 0, bool useEllipsis = true) 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(Surface *dst, byte chr, int x, int y, uint32 color) 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(Surface *dst, byte chr, int x, int y, uint32 color) const;
|
|
};
|
|
|
|
} // End of namespace Graphics
|
|
|
|
#endif
|