bmptk::graphics::font Class Reference

the photo's (bitmaps) of characters More...

#include <graphics.h>

Inheritance diagram for bmptk::graphics::font:

Public Member Functions
	font (bool fixed, const vector char_size)
	create a font, specify its fixedness and character size
virtual bool	has (char c) const =0
	reports whether the font has the char
virtual bool	read (char c, const vector p) const =0
	read pixel p of characters c
virtual vector	char_size (char c) const =0
	reports te size of character c

Public Attributes
bool const	fixed
	true iff the font is fixed-width (all characters are the same width)
bool const	proportional
	true iif the font is proportional (width of the characters varies)
const vector	font_char_size
	the size of one character, x is valid for fixed fonts only

Detailed Description

the photo's (bitmaps) of characters

A font is an abstract class that holds the pixel-level black and white representation of a set of characters, according to some font rules. You can read the pixels for a specific character.

The common way to use a font is to use it to construct a text object, which can subsequently be drawn.

A concrete font class must provide the has() and read() functions.

Definition at line 1657 of file graphics.h.

Member Function Documentation

virtual vector bmptk::graphics::font::char_size ( char  c ) const

pure virtual

reports te size of character c

This function must report (0,0) for a character that is not in the set (for which has is false).

Implemented in bmptk::graphics::inline_font.

virtual bool bmptk::graphics::font::has ( char  c ) const

pure virtual

reports whether the font has the char

To reduce ROM size, a font can contain a subset of the ASCII characters.

Implemented in bmptk::graphics::inline_font.

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The documentation for this class was generated from the following file:

• graphics/graphics.h