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| /**
* @file graphic_test.c
* @author Late Lee
* @date Oct 2011
*
* @brief A test of LCD, including a clock, some text
*
* @log
* 2011-10-? begin of this project
* 2011-10-14 finish the clock, add some text on the screen
* 2011-10-22 将图片资源嵌入到程序文件中并显示
*/
#include <unistd.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
#include <string.h>
#include "fb_utils.h"
#include "fb_graphic.h"
#include "jpeg.h"
/**
* black: 0x000000
* white: 0xffffff
* red: 0xff0000
* green: 0x00ff00 (0x008000)
* blue: 0x0000ff
* yellow: 0xffff00
* gold: 0xffd700
*
*/
/* 0.black 1.xx 2.white 3.xx 4.xx 5.xx 6.purple 7.red 8.green 9.blue 10. yellow 11. gold */
static int palette [] =
{
0x000000, 0xffe080, 0xffffff, 0xe0c0a0, 0x304050, 0x80b8c0,
0x6600cc, 0xff0000, 0x008000, 0x0000ff, 0xffff00, 0xffd700,
0xcbcbcb,
};
#define NR_COLORS (sizeof (palette) / sizeof (palette [0]))
#define WHITE 2
#define GOLD 11
#define PI 3.1415926536
#if 0
#define X 120
#define Y 110
#define R 100
#endif
// 分别： x/Y坐标、大圆/中圆半径，秒/分/时针长度
#define X 100
#define Y 100
#define R 75
#define MID_R 25
#define SEC_LEN (R - 20)
#define MIN_LEN (SEC_LEN - 10)
#define HOUR_LEN (MIN_LEN - 10)
void draw_clock(int x, int y, int r, int mid_r, int colidx)
{
int xc, yc;
int i;
circle(x, y, r, colidx); // 画大圆
circle(x, y, mid_r, colidx); // 画中圆
circle(x, y, 2, colidx); // 画小圆
for (i = 0; i < 60; i++)
{
xc = x + (int)((r-10) * sin(PI * 2 * i/60));
yc = y + (int)((r-10) * cos(PI * 2 * i/60));
if (i % 15 == 0)
fillrect(xc-2, yc-2, xc+2, yc+2, colidx);
else if (i % 5 == 0)
circle(xc, yc, 2, colidx);
else
pixel(xc, yc, colidx);
}
}
void action(int x, int y, int hour, int minute, int second, int fresh)
{
float a_hour, a_min, a_sec;
int x_hour, y_hour;
int x_min, y_min;
int x_sec, y_sec;
a_sec = second * 2 * PI / 60;
a_min = minute * 2 * PI / 60 + a_sec / 60;
a_hour = hour * 2 * PI / 12 + a_min / 12;
x_sec = (int)(SEC_LEN * sin(a_sec));
y_sec = (int)(SEC_LEN * cos(a_sec));
x_min = (int)(MIN_LEN * sin(a_min));
y_min = (int)(MIN_LEN * cos(a_min));
x_hour = (int)(HOUR_LEN * sin(a_hour));
y_hour = (int)(HOUR_LEN * cos(a_hour));
if (fresh)
{
line(x + x_hour, y - y_hour, x - x_hour / 8, y + y_hour / 8, 9);
line(x + x_min, y - y_min, x - x_min / 4, y + y_min / 4, 8);
line(x + x_sec, y - y_sec, x - x_sec / 4 , y + y_sec / 4, 7);
}
else
{
line(x + x_hour, y - y_hour, x - x_hour / 8, y + y_hour / 8, 0);
line(x + x_min, y - y_min, x - x_min / 4, y + y_min / 4, 0);
line(x + x_sec, y - y_sec, x - x_sec / 4 , y + y_sec / 4, 0);
}
}
int main(void)
{
int i;
int hour, min, sec;
time_t t;
struct tm *mytime;
char *buf;
fb_init(); // 初始化屏幕
graphic_init(); //初始化画图界面
jpeg_init(); // 初始化jpeg
color_init(palette, NR_COLORS);
#define TIME_Y 160 // y of string time
draw_jpeg(); // draw the picture
while (1)
{
draw_clock(xres/2, yres/4, R, MID_R, 12);
t = time(NULL);
mytime = localtime(&t);
hour = mytime->tm_hour;
min = mytime->tm_min;
sec = mytime->tm_sec;
action(xres/2, yres/4, hour, min, sec, 1);
buf = ctime(&t);
buf = strchr(buf, ':') - 2; /* Fri Jun 17 11:16:21 UTC 2011 -> 11:16:21*/
buf[8] = '\0';
put_string_ascii(70, TIME_Y, buf, 6); // display time
//usleep(1000000);
sleep(1);
//fb_refresh();
action(xres/2, yres/4, hour, min, sec, 0);
fb_refresh_region(TIME_Y, 25);
}
fb_release();
return 0;
}
|
