tcDspFont

Introduction

The tcDspFont class allows various fixed and proportional fonts to be defined for use (with tcDspDisplay, for example). All fonts are 1 bits per pixel.

See also:

MityDSP::tcDspFont Class Reference

Example

This is a simple example of tcDspFont creation and usage:

 #define START_CHAR     32
 #define CHARS_PER_FONT 96 // start at 32...

 // small font is 7x7 array with single decender
 #define SMALLFONT_HEIGHT      8
 #define SMALLFONT_MAXWIDTH    7
 #define BYTES_PER_SMALLFONT  \
     (SMALLFONT_HEIGHT * ((SMALLFONT_MAXWIDTH + 7) / 8))

 // narrow font is 7x4 array with single decender
 #define NARROWFONT_HEIGHT     8
 #define NARROWFONT_MAXWIDTH   4
 #define BYTES_PER_NARROWFONT  \
     (NARROWFONT_HEIGHT * ((NARROWFONT_MAXWIDTH + 7) / 8))

 // med font is 11x18 with 3 pixel decenders
 #define MEDFONT_HEIGHT       14
 #define MEDFONT_MAXWIDTH     18
 #define BYTES_PER_MEDFONT  \
     (MEDFONT_HEIGHT * ((MEDFONT_MAXWIDTH + 7) / 8))

 {
     unsigned char   SmallFontBitmaps[CHARS_PER_FONT][BYTES_PER_SMALLFONT] =
                     {
                         #include "smallfnt.bit"
                     };
     int             SmallFontWidth[CHARS_PER_FONT] =
                     {
                         #include "smallfnt.wid"
                     };
     unsigned char   NarrowFontBitmaps[CHARS_PER_FONT][BYTES_PER_NARROWFONT] =
                     {
                         #include "nrrwfnt.bit"
                     };
     int             NarrowFontWidth[CHARS_PER_FONT] =
                     {
                         #include "nrrwfnt.wid"
                     };
     unsigned char   MedFontBitmaps[CHARS_PER_FONT][BYTES_PER_MEDFONT] =
                     {
                         #include "medfnt.bit"
                     };
     int             MedFontWidth[CHARS_PER_FONT] =
                     {
                         #include "medfnt.wid"
                     };
     tcDspFont       *small, *medium, *narrow;

     // create fonts to use on display
     small = new tcDspFont ("small", START_CHAR, CHARS_PER_FONT, 
                            BYTES_PER_SMALLFONT, SMALLFONT_HEIGHT, 
                            SmallFontWidth, &SmallFontBitmaps[0][0]);

     medium = new tcDspFont ("medium", START_CHAR, CHARS_PER_FONT, 
                             BYTES_PER_MEDFONT, MEDFONT_HEIGHT, 
                             MedFontWidth, &MedFontBitmaps[0][0]);

     narrow = new tcDspFont ("narrow", START_CHAR, CHARS_PER_FONT, 
                             BYTES_PER_NARROWFONT, NARROWFONT_HEIGHT, 
                             NarrowFontWidth, &NarrowFontBitmaps[0][0]);

     ...
 }