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FontMetrics Class Reference
#include <Pt/Gfx/FontMetrics.h>
Metrics that describe a font face at a given size. More...
Public Member Functions | |
| FontMetrics () | |
| Constructs empty font metrics. | |
| Float | ascent () const |
| Returns the ascent above the baseline. | |
| void | setAscent (Float n) |
| Sets the ascent. | |
| Float | descent () const |
| Returns the descent below the baseline. | |
| void | setDescent (Float n) |
| Sets the descent. | |
| Float | height () const |
| Returns the font height (ascent + descent). | |
| Float | capHeight () const |
| Returns the height of capital letters. | |
| void | setCapHeight (Float n) |
| Sets the cap height. | |
| Float | xHeight () const |
| Returns the height of lowercase x. | |
| void | setXHeight (Float n) |
| Sets the x-height. | |
| Float | leading () const |
| Returns the external leading between lines. | |
| void | setLeading (Float n) |
| Sets the leading. | |
| Float | lineHeight () const |
| Returns the line height (ascent + descent + leading). | |
| Float | underlinePos () const |
| Returns the underline position below the baseline. | |
| void | setUnderlinePos (Float n) |
| Sets the underline position. | |
| Float | underlineThickness () const |
| Returns the underline thickness. | |
| void | setUnderlineThickness (Float n) |
| Sets the underline thickness. | |
| Float | strikeoutPos () const |
| Returns the strikeout position above the baseline. | |
| void | setStrikeoutPos (Float n) |
| Sets the strikeout position. | |
| Float | strikeoutThickness () const |
| Returns the strikeout line thickness. | |
| void | setStrikeoutThickness (Float n) |
| Sets the strikeout thickness. | |
Detailed Description
FontMetrics contains values such as ascent, descent and underline geometry for the font selected by a painter. These metrics can be used to align text, compute line spacing and position decorative lines.