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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef _TEXTWRAP_H
#define _TEXTWRAP_H
#include <string>
#include <list>
#include "CFontTexture.h"
#include "ustring.h"
#include "System/Color.h"
class CTextWrap : public CFontTexture
{
public:
CTextWrap(const std::string& fontfile, int size, int outlinesize, float outlineweight);
virtual ~CTextWrap() {}
//! Adds \n's (and '...' if it would be too high) until the text fits into maxWidth/maxHeight
inline int WrapInPlace(std::string& text, float fontSize, float maxWidth, float maxHeight = 1e9);
inline std::string Wrap(const std::string& text, float fontSize, float maxWidth, float maxHeight = 1e9);
static const char8_t ColorCodeIndicator = 0xFF;
static const char8_t ColorResetIndicator = 0x08; //! =: '\\b'
public:
virtual float GetTextWidth(const std::string& text) = 0;
private:
struct colorcode {
colorcode() : resetColor(false),color(1.f,1.f,1.f,1.f),pos(0) {};
bool resetColor;
SColor color;
unsigned int pos;
std::string tostring() const {
std::string out;
out.reserve(4);
if (resetColor) {
out = ColorResetIndicator;
} else {
out = ColorCodeIndicator;
out += color.r;
out += color.g;
out += color.b;
}
return out;
}
};
struct word {
word() : width(0.0f), text(""), isSpace(false), isLineBreak(false), isColorCode(false), numSpaces(0), pos(0) {};
float width;
std::u8string text;
bool isSpace;
bool isLineBreak;
bool isColorCode;
unsigned int numSpaces;
unsigned int pos; //! position in the original text (needed for remerging colorcodes after wrapping; in printable chars (linebreaks and space don't count))
};
struct line {
line() : width(0.0f), cost(0.0f), forceLineBreak(false) {};
std::list<word>::iterator start, end;
float width;
float cost;
bool forceLineBreak;
};
word SplitWord(word& w, float wantedWidth, bool smart = true);
void SplitTextInWords(const std::u8string& text, std::list<word>* words, std::list<colorcode>* colorcodes);
void RemergeColorCodes(std::list<word>* words, std::list<colorcode>& colorcodes) const;
void AddEllipsis(std::list<line>& lines, std::list<word>& words, float maxWidth);
void WrapTextConsole(std::list<word>& words, float maxWidth, float maxHeight);
int WrapInPlace(std::u8string& text, float fontSize, float maxWidth, float maxHeight = 1e9);
std::u8string Wrap(const std::u8string& text, float fontSize, float maxWidth, float maxHeight = 1e9);
};
// wrappers
int CTextWrap::WrapInPlace(std::string& text, float fontSize, float maxWidth, float maxHeight)
{
return WrapInPlace(toustring(text), fontSize, maxWidth, maxHeight);
}
std::string CTextWrap::Wrap(const std::string& text, float fontSize, float maxWidth, float maxHeight)
{
return Wrap(toustring(text), fontSize, maxWidth, maxHeight);
}
#endif /* _TEXTWRAP_H */
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