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ben-wpan/tools/atrf-rssi/letter.c
Werner Almesberger 5392401c0a tools/atrf-rssi/: added menu for regulation area selection
- gui.c (area_off, gui): don't show a regulation area by default
- letter.h, letter.c: drawing of limited character set
- Makefile (OBJS_host, OBJS_ben_jlime): added letter.o
- gui.c (print, area_selector, gui): show regulation area selector
2011-06-24 22:29:17 -03:00

64 lines
1.4 KiB
C

/*
* atrf-rssi/letter.c - Draw 7 segment style letters
*
* Written 2011 by Werner Almesberger
* Copyright 2011 Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <stdint.h>
#include "SDL.h"
#include "SDL_gfxPrimitives.h"
#include "letter.h"
static void hlines_3(SDL_Surface *s, int x0, int x1, int y0, int ym, int y1,
uint32_t fg)
{
hlineColor(s, x0, x1, y0, fg);
hlineColor(s, x0, x1, ym, fg);
hlineColor(s, x0, x1, y1, fg);
}
void letter(SDL_Surface *s, char c, int x0, int x1, int y0, int ym, int y1,
uint32_t fg)
{
switch (c) {
case 'E':
hlines_3(s, x0, x1, y0, ym, y1, fg);
vlineColor(s, x0, y0, y1, fg);
break;
case 'U':
vlineColor(s, x0, ym, y1, fg);
/* fall through */
case 'J':
hlineColor(s, x0, x1, y0, fg);
vlineColor(s, x1, y0, y1, fg);
vlineColor(s, x0, y0, ym, fg);
break;
case 'P':
hlineColor(s, x0, x1, y1, fg);
hlineColor(s, x0, x1, ym, fg);
vlineColor(s, x1, ym, y1, fg);
vlineColor(s, x0, y0, y1, fg);
break;
case 'S':
hlines_3(s, x0, x1, y0, ym, y1, fg);
vlineColor(s, x0, ym, y1, fg);
vlineColor(s, x1, y0, ym, fg);
break;
hlineColor(s, x0, x1, y0, fg);
vlineColor(s, x0, y0, y1, fg);
default:
abort();
}
}