int ggiKbhit(ggi_visual_t vis)
{
struct timeval t={0,0};
return (giiEventPoll(vis->input, emKeyPress | emKeyRepeat, &t)
!= emZero);
}
int main(int argc, const char *argv[])
{
ggi_visual_t vis;
ggi_mode mode;
int i, j, cx, cy, c;
char buf[80];
/* Set up the random number generator */
srandom((unsigned)time(NULL));
/* Initialize LibGGI */
if (giiInit() < 0) {
fprintf(stderr, "Cannot initialize LibGII!\n");
return 1;
}
if (ggiInit() < 0) {
fprintf(stderr, "Cannot initialize LibGGI!\n");
giiExit();
return 1;
}
vis = ggNewStem(NULL);
if (!vis) {
fprintf(stderr, "Cannot open create stem!\n");
ggiExit();
giiExit();
return 1;
}
if (giiAttach(vis) < 0) {
fprintf(stderr, "Cannot attach LibGII!\n");
ggDelStem(vis);
ggiExit();
giiExit();
return 1;
}
if (ggiAttach(vis) < 0) {
fprintf(stderr, "Cannot attach LibGGI!\n");
ggDelStem(vis);
ggiExit();
giiExit();
return 1;
}
/* Open default visual */
if (ggiOpen(vis, NULL) < 0) {
fprintf(stderr, "Cannot open default visual!\n");
ggDelStem(vis);
ggiExit();
giiExit();
return 1;
}
/* Set visual to async mode (drawing not immediate) */
ggiSetFlags(vis, GGIFLAG_ASYNC);
/* Set default mode, but with multiple buffering */
if (argc > 1) {
ggiParseMode(argv[1], &mode);
} else {
ggiParseMode("", &mode);
if (mode.frames < 2) mode.frames = 2;
}
if (ggiSetMode(vis, &mode)) {
fprintf(stderr, "Cannot set mode!\n");
ggDelStem(vis);
ggiExit();
giiExit();
return 1;
}
ggiGetCharSize(vis, &cx, &cy);
/* Setup palette */
if (GT_SCHEME(mode.graphtype) == GT_PALETTE) {
ggiSetColorfulPalette(vis);
}
/* Write something into each frame */
for (i = 0; i < mode.frames; i++) {
if (ggiSetWriteFrame(vis, i)) {
fprintf(stderr, "Cannot set write frame!\n");
ggDelStem(vis);
ggiExit();
giiExit();
return 1;
}
ggiSetGCBackground(vis, ggiMapColor(vis, &white));
ggiSetGCForeground(vis, ggiMapColor(vis, &white));
ggiFillscreen(vis);
}
/* Clip a small border so that clipping can be verified. */
ggiSetGCClipping(vis, 5, 5, mode.virt.x - 5, mode.virt.y - 5);
/* Write something into each frame */
for (i = 0; i < mode.frames; i++) {
ggiSetWriteFrame(vis, i);
ggiSetGCBackground(vis, ggiMapColor(vis, &black));
ggiSetGCForeground(vis, ggiMapColor(vis, &black));
ggiFillscreen(vis);
snprintf(buf, sizeof(buf), "Hello World #%d!", i);
for (j = 0; j < mode.virt.y; j += cy) {
ggi_color col;
int x = random() % mode.virt.x;
int h = (random() & 0x7fff) + 0x8000;
int l = (random() & 0x7fff);
/* Use different colors for different frames */
col.r = ((i + 1) & 1) ? h : l;
col.g = ((i + 1) & 2) ? h : l;
col.b = ((i + 1) & 4) ? h : l;
ggiSetGCForeground(vis, ggiMapColor(vis, &col));
ggiPuts(vis, x, j, buf);
}
/* Flush commands before proceeding to the next frame */
ggiFlush(vis);
}
/* Cycle through frames */
i = 0;
j = 0;
do {
if (ggiSetDisplayFrame(vis, i)) {
ggPanic("Cannot set display frame!\n");
}
/* Wait */
c = GIIK_VOID;
do {
struct timeval tv = { 0, 0 };
int key;
/* Flush command before waiting for input */
ggiFlush(vis);
key = giiEventPoll(vis, emKeyPress, &tv);
if (key & emKeyPress)
c = giiGetc(vis);
ggUSleep(50000);
animate(vis, &mode, j);
j++;
} while (c == GIIK_VOID || GII_KTYP(c) == GII_KT_MOD);
i = (i + 1) % mode.frames;
} while (c != 'q' && c != 'Q' && c != 'x' && c != 'X' &&
c != GIIUC_Escape);
ggiClose(vis);
ggDelStem(vis);
ggiExit();
giiExit();
return 0;
}
gii_event_mask ggiEventPoll(ggi_visual *vis, gii_event_mask mask,
struct timeval *t)
{
return giiEventPoll(vis->input, mask, t);
}
int do_menu(struct menu * m , int selected)
{
/* select a menu item by either a number or with arrow keys */
int i;
int evmask;
gii_event ev;
struct timeval t= {0,0};
int oldselection = selected;
draw_window(&m->w);
if (m->toptext != NULL) {
ggiSetGCForeground(m->w.vis,
ggiMapColor(m->w.vis,&m->toptextcolor));
/* FIXME*/
ggiPuts(m->w.vis, m->w.xorigin+m->toptextx,
m->w.yorigin+m->toptexty, m->toptext);
}
if (m->bottomtext != NULL) {
ggiSetGCForeground(m->w.vis,
ggiMapColor(m->w.vis,&m->bottomtextcolor));
/* FIXME*/
ggiPuts(m->w.vis, m->w.xorigin+m->bottomtextx,
m->w.yorigin+m->bottomtexty, m->bottomtext);
}
for (i = 0; i<=m->lastentry; i++) {
if (i!=selected) {
ggiSetGCForeground(m->w.vis,
ggiMapColor(m->w.vis,&m->entrycolor));
ggiSetGCBackground(m->w.vis,
ggiMapColor(m->w.vis,&m->w.backgroundcolor));
} else {
ggiSetGCForeground(m->w.vis,
ggiMapColor(m->w.vis,&m->selectedcolor));
ggiSetGCBackground(m->w.vis,
ggiMapColor(m->w.vis,
&m->selectedbackgroundcolor));
}
ggiPuts( m->w.vis,
m->w.xorigin + m->entry[i].x,
m->w.yorigin + m->entry[i].y,
m->entry[i].text);
}
for (;;) {
/* if we are in asynchronous mode, we must guarantee */
/* the user sees he's next. */
ggiFlush(m->w.vis);
/* get a keypress */
evmask = emKey;
giiEventPoll(m->w.vis, evmask, NULL);
while (giiEventPoll(m->w.vis, evmask,&t)) {
do {
giiEventRead(m->w.vis,&ev, evmask);
} while (!((1<<ev.any.type)&evmask));
switch(ev.any.type) {
case evKeyPress:
case evKeyRepeat:
switch(ev.key.sym) {
case '1':
selected = 0;
break;
case '2':
selected = 1;
break;
case '3':
selected = 2;
break;
case '4':
selected = 3;
break;
case '5':
selected = 4;
break;
case '6':
selected = 5;
break;
case '7':
selected = 6;
break;
case '8':
selected = 7;
break;
case '9':
selected = 8;
break;
case GIIK_Up:
selected--;
break;
case GIIK_Down:
selected++;
break;
case GIIK_Enter:
ggiFlush(m->w.vis);
/* just to make sure */
return (selected);
break; /* never get here */
case GIIUC_Escape:
ggiFlush(m->w.vis);
/* just to make sure */
return (-1);
default:
/*printf("unknown sym=%4x code=%4x\n", ev.key.sym, ev.key.code);*/
break;
}
default: /*printf("can't handle this event yet.\n");*/
break;
}
}
ggiSetGCForeground(m->w.vis,
ggiMapColor(m->w.vis,&m->entrycolor));
ggiSetGCBackground(m->w.vis,
ggiMapColor(m->w.vis,&m->w.backgroundcolor));
ggiPuts( m->w.vis,
m->w.xorigin+m->entry[oldselection].x,
m->w.yorigin+m->entry[oldselection].y,
m->entry[oldselection].text);
if (selected<0) selected = 0;
if (selected > m->lastentry) selected = m->lastentry;
ggiSetGCForeground(m->w.vis,
ggiMapColor(m->w.vis,&m->selectedcolor));
ggiSetGCBackground(m->w.vis,
ggiMapColor(m->w.vis,
&m->selectedbackgroundcolor));
ggiPuts( m->w.vis,
m->w.xorigin + m->entry[selected].x,
m->w.yorigin + m->entry[selected].y,
m->entry[selected].text);
oldselection = selected;
}
}
