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clock.c
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clock.c
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#include <u.h>
#include <libc.h>
#include <draw.h>
#include <event.h>
enum {
Dwidth = 3,
Dheight = 5
};
char Dfont[10][Dwidth*Dheight] = {
{ 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1 }, /* 0 */
{ 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1 }, /* 1 */
{ 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 }, /* 2 */
{ 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1 }, /* 3 */
{ 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1 }, /* 4 */
{ 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1 }, /* 5 */
{ 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1 }, /* 6 */
{ 1, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1 }, /* 7 */
{ 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1 }, /* 8 */
{ 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1 } /* 9 */
};
char* menustr[] = {
"exit",
0
};
Menu menu = {
menustr
};
int pixelsize = 10;
int spacing = 10;
Image *bg;
Image *fg;
void
drawpixel(int x0, int y0, int x, int y)
{
Point p[4], o;
o = addpt(Pt(x0, y0), screen->r.min);
p[0] = addpt(o, mulpt(Pt(x, y), pixelsize));
p[1] = addpt(o, mulpt(Pt(x+1, y), pixelsize));
p[2] = addpt(o, mulpt(Pt(x+1, y+1), pixelsize));
p[3] = addpt(o, mulpt(Pt(x , y+1), pixelsize));
fillpoly(screen, p, 4, 1, fg, ZP);
}
void
drawdigit(int digit, int x0, int y0)
{
int i;
for(i = 0; i < Dwidth*Dheight; i++){
if(Dfont[digit][i])
drawpixel(x0, y0, i%Dwidth, i/Dwidth);
}
}
void
drawcolon(int x0)
{
drawpixel(x0, spacing, 0, 1);
drawpixel(x0, spacing, 0, 3);
}
int
nextcharpos(int x0, int width)
{
return x0 + width*pixelsize + spacing;
}
void
showtime()
{
Tm* tm;
int x;
tm = localtime(time(0));
draw(screen, screen->r, bg, nil, ZP);
x = nextcharpos(0, 0);
drawdigit(tm->hour/10, x, spacing);
x = nextcharpos(x, Dwidth);
drawdigit(tm->hour%10, x, spacing);
x = nextcharpos(x, Dwidth);
drawcolon(x);
x = nextcharpos(x, 1);
drawdigit(tm->min/10, x, spacing);
x = nextcharpos(x, Dwidth);
drawdigit(tm->min%10, x, spacing);
}
void
eresized(int new)
{
if(new && getwindow(display, Refnone) < 0)
sysfatal("cannot reattach to window: %r");
showtime();
}
void
usage(void)
{
fprint(2, "Usage: %s [-sspacing] [-ppixelsize]\n", argv0);
exits("usage");
}
void
main(int argc, char** argv)
{
Event ev;
int e, timer;
int width, height;
ARGBEGIN {
case 's':
spacing = atoi(EARGF(usage()));
break;
case 'p':
pixelsize = atoi(EARGF(usage()));
break;
default:
usage();
} ARGEND
width = (4*Dwidth+1)*pixelsize+6*spacing;
height = Dheight*pixelsize+2*spacing;
winsize = smprint("%dx%d", width, height);
if(initdraw(nil, nil, "clock") < 0)
sysfatal("initdraw: %r");
bg = allocimage(display, Rect(0, 0, 1, 1), screen->chan, 1, DWhite);
fg = allocimage(display, Rect(0, 0, 1, 1), screen->chan, 1, 0x55AAAAFF);
einit(Emouse);
timer = etimer(0, 15*1000);
eresized(0);
for(;;){
e = event(&ev);
if(e == Emouse){
if((ev.mouse.buttons == 4)
&& (emenuhit(3, &ev.mouse, &menu) == 0))
exits(nil);
}else if(e == timer){
showtime();
}
}
exits(nil);
}