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#ifdef _plan9_
#include <u.h>
#include <libc.h>
#else
#include <stdlib.h>
#include <string.h>
#endif
#include <filter.h>
#include <fractal.h>
#include <timers.h>
#include <ui_helper.h>
#include <xerror.h>
#include <misc-f.h>
#include "grlib.h"
#define EXPIRETIME 4000000
static void
getpos(uih_context * c, int *x, int *y, int *w, int *h, void *data)
{
int n = (int) data;
if (c->messg.message[n] != NULL) {
int he = xtextheight(c->font);
*y = c->messg.messagestart + he * n;
*h = he;
*w = xtextwidth(c->font, c->messg.message[n]);
*x = (c->image->width - *w) / 2;
} else {
*w = *h = *x = *y = 0;
}
}
static void draw(uih_context * c, void *data)
{
int x, y, w;
int n = (int) data;
if (c->messg.message[n] != NULL) {
int h = xtextheight(c->font);
y = c->messg.messagestart + h * n;
w = xtextwidth(c->font, c->messg.message[n]);
x = (c->image->width - w) / 2;
if (c->messg.messagetype[n])
xprint(c->image, c->font, x, y, c->messg.message[n],
(c->image->flags & AAIMAGE) ? BGCOLOR(c) : SELCOLOR(c),
BGCOLOR(c), 0);
else
xprint(c->image, c->font, x, y, c->messg.message[n],
(c->image->flags & AAIMAGE) ? BGCOLOR(c) : FGCOLOR(c),
BGCOLOR(c), 0);
}
}
void uih_rmmessage(uih_context * c, int pid)
{
int i;
for (i = 0; i < NMESSAGES && c->messg.pid[i] != pid; i++);
if (i == NMESSAGES)
return;
if (c->messg.message[i] == NULL)
return;
free(c->messg.message[i]);
tl_remove_timer(c->messg.messagetimer[i]);
tl_free_timer(c->messg.messagetimer[i]);
c->messg.message[i] = NULL;
for (; i < NMESSAGES - 1; i++) {
c->messg.message[i] = c->messg.message[i + 1];
c->messg.messagetimer[i] = c->messg.messagetimer[i + 1];
c->messg.messagetype[i] = c->messg.messagetype[i + 1];
c->messg.pid[i] = c->messg.pid[i + 1];
}
c->messg.message[NMESSAGES - 1] = NULL;
c->display = 1;
}
void uih_scrollup(uih_context * c)
{
uih_rmmessage(c, c->messg.pid[0]);
}
void uih_clearmessages(uih_context * c)
{
while (c->messg.message[0] != NULL)
uih_scrollup(c);
}
void uih_initmessages(uih_context * c)
{
int i;
for (i = 0; i < NMESSAGES; i++) {
c->messg.message[i] = NULL;
c->messg.w[i] = uih_registerw(c, getpos, draw, (void *) i, 0);
}
c->messg.messagestart = 0;
}
void uih_destroymessages(uih_context * c)
{
int i;
uih_clearmessages(c);
for (i = 0; i < NMESSAGES; i++)
uih_removew(c, c->messg.w[i]);
}
static int uih_message1(uih_context * c, CONST char *message, int type)
{
static int pid;
int i;
for (i = 0; i < NMESSAGES && c->messg.message[i] != NULL; i++);
if (i == NMESSAGES)
uih_scrollup(c), i--;
c->messg.message[i] = mystrdup(message);
c->messg.messagetype[i] = type;
c->messg.messagetimer[i] = tl_create_timer();
tl_reset_timer(c->messg.messagetimer[i]);
tl_set_interval(c->messg.messagetimer[i], 1);;
tl_slowdown_timer(c->messg.messagetimer[i], EXPIRETIME);;
tl_set_handler(c->messg.messagetimer[i],
(void (*)(void *)) uih_scrollup, c);
tl_add_timer(syncgroup, c->messg.messagetimer[i]);
/*tl_remove_timer (c->messg.messagetimer[i]); */
c->messg.pid[i] = ++pid;
c->display = 1;
return (pid);
}
int uih_message(uih_context * c, CONST char *message)
{
if (c->inhibittextoutput)
return 0;
return (uih_message1(c, message, 0));
}
int uih_error(uih_context * c, CONST char *error)
{
char str[256];
sprintf(str, "Error: %s", error);
c->errstring = error;
return (uih_message1(c, str, 1));
}
void uih_printmessages(uih_context * c)
{
int i;
for (i = 0; i < NMESSAGES && c->messg.message[i] != NULL; i++)
x_message(c->messg.message[i], stderr);
}
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