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glt/font.cpp

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#include "font.h"

#include <math/real.h>

#include <cstdio>
#include <cassert>
using namespace std;

GltFont::GltFont()
: _hStep(0), _vStep(0), _init(false)
{
}

GltFont::GltFont(const GltFont &)
{
    // Can't copy fonts
    assert(0);
}

GltFont &
GltFont::operator=(const GltFont &)
{
    // Can't copy fonts
    assert(0);
    return *this;
}

GltFont::~GltFont()
{
    _init = false;
}

void 
GltFont::size(int &w,int &h,const std::wstring &str) const
{
    h = 0;
    w = 0;

    // Get the first line of text

    string::size_type i = 0;
    string::size_type j = str.find('\n',i);

    // Process each line of text

    while (i<str.size())
    {
        h++;

        int lWidth = 0;
        for (string::size_type k=i; k<j && k<str.size(); k++)
            lWidth += width(str[k]);

        //

        w = MAX(w,lWidth);

        //

        if (j==wstring::npos)
            break;
        
        i = j+1;
        j = str.find('\n',i);
    }

    //

    h *= _vStep;
}

int 
GltFont::width(const wchar_t ch) const
{
    return _hStep;
}

const int GltFont::hStep()  const { return _hStep; }
const int GltFont::vStep()  const { return _vStep; }

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