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#ifndef __FONTCONTROL_H
#define __FONTCONTROL_H
#include <qfontdatabase.h>
#include <qfontmetrics.h>
#include "StyleConsts.h"
class FontControl
{
int * m_fontsizes;
int m_size;
QString m_fontname;
int m_maxsize;
public:
FontControl(QString n = "helvetica", int size = 10)
:
m_fontsizes(NULL)
{
ChangeFont(n, size);
}
~FontControl()
{
if (m_fontsizes != NULL) delete [] m_fontsizes;
}
QString name() { return m_fontname; }
int currentsize() { return m_fontsizes[m_size]; }
int getsize(CStyle size)
{
return m_fontsizes[m_size+size.getFontSize()];
}
int ascent()
{
QFont f(name(), currentsize());
QFontMetrics fm(f);
return fm.ascent();
}
int ascent(CStyle ch)
{
QFont f(name(), getsize(ch));
QFontMetrics fm(f);
return fm.ascent();
}
int descent()
{
QFont f(name(), currentsize());
QFontMetrics fm(f);
return fm.descent();
}
int descent(CStyle ch)
{
QFont f(name(), getsize(ch));
QFontMetrics fm(f);
return fm.descent();
}
int lineSpacing()
{
QFont f(name(), currentsize());
QFontMetrics fm(f);
return fm.lineSpacing();
}
int lineSpacing(CStyle ch)
{
QFont f(name(), getsize(ch));
QFontMetrics fm(f);
return fm.lineSpacing();
}
bool decreasesize()
{
if (--m_size < 0)
{
m_size = 0;
return false;
}
else return true;
}
bool increasesize()
{
if (++m_size >= m_maxsize)
{
m_size = m_maxsize - 1;
return false;
}
else return true;
}
bool ChangeFont(QString& n)
{
return ChangeFont(n, currentsize());
}
bool ChangeFont(QString& n, int tgt)
{
QValueList<int>::Iterator it;
QFontDatabase fdb;
QValueList<int> sizes = fdb.pointSizes(n);
if (sizes.count() == 0)
{
return false;
}
else
{
m_fontname = n;
m_maxsize = sizes.count();
if (m_fontsizes != NULL) delete [] m_fontsizes;
m_fontsizes = new int[m_maxsize];
uint i = 0;
uint best = 0;
for (it = sizes.begin(); it != sizes.end(); it++)
{
m_fontsizes[i] = (*it);
if (abs(tgt-m_fontsizes[i]) < abs(tgt-m_fontsizes[best]))
{
best = i;
}
i++;
}
m_size = best;
}
return true;
}
};
#endif
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