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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef QDENGINE_SYSTEM_GRAPHICS_UI_TEXT_PARSER_H
#define QDENGINE_SYSTEM_GRAPHICS_UI_TEXT_PARSER_H
#include "qdengine/system/graphics/gr_font.h"
namespace QDEngine {
struct OutNode {
enum {
NEW_LINE,
TEXT,
COLOR
} type;
int width;
union {
struct {
const char *begin;
const char *end;
} nl;
struct {
int style;
} t;
int color;
};
OutNode() : type(NEW_LINE), width(0) { nl.begin = 0; nl.end = 0; }
OutNode(const char *b, const char *e, int wd) : type(TEXT), width(wd) { nl.begin = b; nl.end = e; }
OutNode(int clr) : type(COLOR), width(0), color(clr) {}
};
typedef Std::vector<OutNode> OutNodes;
class UI_TextParser {
public:
UI_TextParser(const grFont *font = 0);
UI_TextParser(const UI_TextParser &src);
void operator= (const UI_TextParser &src);
void setFont(const grFont *font);
void parseString(const char *text, int color = 0, int fitIn = -1);
const OutNodes &outNodes() const {
return _outNodes;
}
int fontHeight() const {
return _font ? _font->size_y() : 1;
}
const Vect2i &size() const {
return _size;
}
int lineCount() const {
return _lineCount;
}
OutNodes::const_iterator getLineBegin(int lineNum) const;
private:
void init();
inline int fromHex(char a) {
if (a >= '0' && a <= '9')
return a - '0';
if (a >= 'A' && a <= 'F')
return a - 'A' + 10;
if (a >= 'a' && a <= 'f')
return a - 'a' + 10;
return -1;
}
inline void addChar(byte cc) {
int width = _font->char_width(cc);
if (testWidth(width) || cc != ' ')
_tagWidth += width;
++_pstr;
}
inline void skipNode() {
_lineBegin = _pstr;
_lastSpace = _lineBegin;
_lastTagWidth = 0;
_tagWidth = 0;
}
inline void putNode(OutNode &node) {
_outNodes.push_back(node);
skipNode();
}
void putText() {
if (_pstr == _lineBegin)
return;
_lineWidth += _tagWidth;
OutNode node(_lineBegin, _pstr, _tagWidth);
putNode(node);
}
void endLine() {
_size.x = MAX(_size.x, _lineWidth);
_outNodes[_prevLineIndex].width = _lineWidth;
_lineWidth = 0;
_outNodes.push_back(OutNode());
_prevLineIndex = _outNodes.size() - 1;
++_lineCount;
}
void getColor(int defColor);
int getStyle(const char *styleptr, const char *end);
int getToken();
bool testWidth(int width);
OutNodes _outNodes;
int _prevLineIndex;
const char *_lastSpace;
int _lastTagWidth;
const char *_lineBegin;
const char *_pstr;
int _tagWidth;
int _lineWidth;
int _fitIn;
Vect2i _size;
int _lineCount;
const grFont *_font;
};
} // namespace QDEngine
#endif // QDENGINE_SYSTEM_GRAPHICS_UI_TEXT_PARSER_H
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