778 lines
14 KiB
C
778 lines
14 KiB
C
/*
|
|
* This file is part of the UCB release of Plan 9. It is subject to the license
|
|
* terms in the LICENSE file found in the top-level directory of this
|
|
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
|
|
* part of the UCB release of Plan 9, including this file, may be copied,
|
|
* modified, propagated, or distributed except according to the terms contained
|
|
* in the LICENSE file.
|
|
*/
|
|
|
|
#include "u.h"
|
|
#include "../port/lib.h"
|
|
#include "mem.h"
|
|
#include "dat.h"
|
|
#include "fns.h"
|
|
#include "../port/error.h"
|
|
|
|
#define Image IMAGE
|
|
#include <draw.h>
|
|
#include <memdraw.h>
|
|
#include <cursor.h>
|
|
#include "screen.h"
|
|
|
|
enum {
|
|
ScrollUp = 0x08,
|
|
ScrollDown = 0x10,
|
|
ScrollLeft = 0x20,
|
|
ScrollRight = 0x40,
|
|
};
|
|
|
|
typedef struct Mouseinfo Mouseinfo;
|
|
typedef struct Mousestate Mousestate;
|
|
|
|
struct Mousestate
|
|
{
|
|
Point xy; /* mouse.xy */
|
|
int buttons; /* mouse.buttons */
|
|
uint32_t counter; /* increments every update */
|
|
uint32_t msec; /* time of last event */
|
|
};
|
|
|
|
struct Mouseinfo
|
|
{
|
|
Lock _lock;
|
|
Mousestate;
|
|
int dx;
|
|
int dy;
|
|
int track; /* dx & dy updated */
|
|
int redraw; /* update cursor on screen */
|
|
uint32_t lastcounter; /* value when /dev/mouse read */
|
|
uint32_t lastresize;
|
|
uint32_t resize;
|
|
Rendez rend;
|
|
Ref r;
|
|
QLock ql;
|
|
int open;
|
|
int acceleration;
|
|
int maxacc;
|
|
Mousestate queue[16]; /* circular buffer of click events */
|
|
int ri; /* read index into queue */
|
|
int wi; /* write index into queue */
|
|
unsigned char qfull; /* queue is full */
|
|
};
|
|
|
|
enum
|
|
{
|
|
CMbuttonmap,
|
|
CMscrollswap,
|
|
CMswap,
|
|
CMwildcard,
|
|
};
|
|
|
|
static Cmdtab mousectlmsg[] =
|
|
{
|
|
CMbuttonmap, "buttonmap", 0,
|
|
CMscrollswap, "scrollswap", 0,
|
|
CMswap, "swap", 1,
|
|
CMwildcard, "*", 0,
|
|
};
|
|
|
|
Mouseinfo mouse;
|
|
Cursorinfo cursor;
|
|
int mouseshifted;
|
|
int kbdbuttons;
|
|
void (*kbdmouse)(int);
|
|
Cursor curs;
|
|
|
|
void Cursortocursor(Cursor*);
|
|
int mousechanged(void*);
|
|
|
|
static void mouseclock(void);
|
|
|
|
enum{
|
|
Qdir,
|
|
Qcursor,
|
|
Qmouse,
|
|
Qmousein,
|
|
Qmousectl,
|
|
};
|
|
|
|
static Dirtab mousedir[]={
|
|
".", {Qdir, 0, QTDIR}, 0, DMDIR|0555,
|
|
"cursor", {Qcursor}, 0, 0666,
|
|
"mouse", {Qmouse}, 0, 0666,
|
|
"mousein", {Qmousein}, 0, 0220,
|
|
"mousectl", {Qmousectl}, 0, 0220,
|
|
};
|
|
|
|
static unsigned char buttonmap[8] = {
|
|
0, 1, 2, 3, 4, 5, 6, 7,
|
|
};
|
|
static int mouseswap;
|
|
static int scrollswap;
|
|
static uint32_t mousetime;
|
|
|
|
extern Memimage* gscreen;
|
|
extern uint32_t kerndate;
|
|
|
|
static void
|
|
mousereset(void)
|
|
{
|
|
curs = arrow;
|
|
Cursortocursor(&arrow);
|
|
/* redraw cursor about 30 times per second */
|
|
addclock0link(mouseclock, 33);
|
|
}
|
|
|
|
static void
|
|
mousefromkbd(int buttons)
|
|
{
|
|
kbdbuttons = buttons;
|
|
mousetrack(0, 0, 0, TK2MS(sys->ticks));
|
|
}
|
|
|
|
static int
|
|
mousedevgen(Chan *c, char *name, Dirtab *tab, int ntab, int i, Dir *dp)
|
|
{
|
|
int rc;
|
|
|
|
rc = devgen(c, name, tab, ntab, i, dp);
|
|
if(rc != -1)
|
|
dp->atime = mousetime;
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
mouseinit(void)
|
|
{
|
|
curs = arrow;
|
|
Cursortocursor(&arrow);
|
|
cursoron(1);
|
|
kbdmouse = mousefromkbd;
|
|
mousetime = seconds();
|
|
}
|
|
|
|
static Chan*
|
|
mouseattach(Chan *c, Chan *ac, char *spec, int flags)
|
|
{
|
|
return devattach('m', spec);
|
|
}
|
|
|
|
static Walkqid*
|
|
mousewalk(Chan *c, Chan *nc, char **name, int nname)
|
|
{
|
|
Walkqid *wq;
|
|
|
|
/*
|
|
* We use devgen() and not mousedevgen() here
|
|
* see "Ugly problem" in dev.c/devwalk()
|
|
*/
|
|
wq = devwalk(c, nc, name, nname, mousedir, nelem(mousedir), devgen);
|
|
if(wq != nil && wq->clone != c && wq->clone != nil && (wq->clone->qid.type&QTDIR)==0)
|
|
incref(&mouse.r);
|
|
return wq;
|
|
}
|
|
|
|
static long
|
|
mousestat(Chan *c, uint8_t *db, long n)
|
|
{
|
|
return devstat(c, db, n, mousedir, nelem(mousedir), mousedevgen);
|
|
}
|
|
|
|
static Chan*
|
|
mouseopen(Chan *c, unsigned long omode)
|
|
{
|
|
switch((uint32_t)c->qid.path){
|
|
case Qdir:
|
|
if(omode != OREAD)
|
|
error(Eperm);
|
|
break;
|
|
case Qmouse:
|
|
lock(&mouse._lock);
|
|
if(mouse.open){
|
|
unlock(&mouse._lock);
|
|
error(Einuse);
|
|
}
|
|
mouse.open = 1;
|
|
ainc(&mouse.r.ref);
|
|
mouse.lastresize = mouse.resize;
|
|
unlock(&mouse._lock);
|
|
break;
|
|
case Qmousein:
|
|
if(!iseve())
|
|
error(Eperm);
|
|
break;
|
|
default:
|
|
incref(&mouse.r);
|
|
}
|
|
c->mode = openmode(omode);
|
|
c->flag |= COPEN;
|
|
c->offset = 0;
|
|
return c;
|
|
}
|
|
|
|
static Chan*
|
|
mousecreate(Chan *c, char *j, unsigned long i, unsigned long u)
|
|
{
|
|
error(Eperm);
|
|
return nil;
|
|
}
|
|
|
|
static void
|
|
mouseclose(Chan *c)
|
|
{
|
|
if((c->qid.type&QTDIR)==0 && (c->flag&COPEN)){
|
|
if(c->qid.path == Qmousein)
|
|
return;
|
|
lock(&mouse._lock);
|
|
if(c->qid.path == Qmouse)
|
|
mouse.open = 0;
|
|
if(adec(&mouse.r.ref) == 0){
|
|
cursoroff(1);
|
|
curs = arrow;
|
|
Cursortocursor(&arrow);
|
|
cursoron(1);
|
|
}
|
|
unlock(&mouse._lock);
|
|
}
|
|
}
|
|
|
|
|
|
static long
|
|
mouseread(Chan *c, void *va, long n, int64_t off)
|
|
{
|
|
char buf[1+4*12+1];
|
|
unsigned char *p;
|
|
uint32_t offset = off;
|
|
Mousestate m;
|
|
int b;
|
|
|
|
p = va;
|
|
switch((uint32_t)c->qid.path){
|
|
case Qdir:
|
|
return devdirread(c, va, n, mousedir, nelem(mousedir), mousedevgen);
|
|
|
|
case Qcursor:
|
|
if(offset != 0)
|
|
return 0;
|
|
if(n < 2*4+2*2*16)
|
|
error(Eshort);
|
|
n = 2*4+2*2*16;
|
|
lock(&cursor.l);
|
|
BPLONG(p+0, curs.offset.x);
|
|
BPLONG(p+4, curs.offset.y);
|
|
memmove(p+8, curs.clr, 2*16);
|
|
memmove(p+40, curs.set, 2*16);
|
|
unlock(&cursor.l);
|
|
return n;
|
|
|
|
case Qmouse:
|
|
while(mousechanged(0) == 0)
|
|
sleep(&mouse.rend, mousechanged, 0);
|
|
|
|
mouse.qfull = 0;
|
|
mousetime = seconds();
|
|
|
|
/*
|
|
* No lock of the indices is necessary here, because ri is only
|
|
* updated by us, and there is only one mouse reader
|
|
* at a time. I suppose that more than one process
|
|
* could try to read the fd at one time, but such behavior
|
|
* is degenerate and already violates the calling
|
|
* conventions for sleep above.
|
|
*/
|
|
if(mouse.ri != mouse.wi) {
|
|
m = mouse.queue[mouse.ri];
|
|
if(++mouse.ri == nelem(mouse.queue))
|
|
mouse.ri = 0;
|
|
} else {
|
|
while(!canlock(&cursor.l))
|
|
tsleep(&up->sleep, return0, 0, TK2MS(1));
|
|
|
|
m = mouse.Mousestate;
|
|
unlock(&cursor.l);
|
|
}
|
|
|
|
b = buttonmap[m.buttons&7];
|
|
/* put buttons 4 and 5 back in */
|
|
b |= m.buttons & (3<<3);
|
|
if (scrollswap)
|
|
if (b == 8)
|
|
b = 16;
|
|
else if (b == 16)
|
|
b = 8;
|
|
snprint(buf, sizeof buf, "m%11d %11d %11d %11lud ",
|
|
m.xy.x, m.xy.y,
|
|
b,
|
|
m.msec);
|
|
mouse.lastcounter = m.counter;
|
|
if(n > 1+4*12)
|
|
n = 1+4*12;
|
|
if(mouse.lastresize != mouse.resize){
|
|
mouse.lastresize = mouse.resize;
|
|
buf[0] = 'r';
|
|
}
|
|
memmove(va, buf, n);
|
|
return n;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
setbuttonmap(char* map)
|
|
{
|
|
int i, x, one, two, three;
|
|
|
|
one = two = three = 0;
|
|
for(i = 0; i < 3; i++){
|
|
if(map[i] == 0)
|
|
error(Ebadarg);
|
|
if(map[i] == '1'){
|
|
if(one)
|
|
error(Ebadarg);
|
|
one = 1<<i;
|
|
}
|
|
else if(map[i] == '2'){
|
|
if(two)
|
|
error(Ebadarg);
|
|
two = 1<<i;
|
|
}
|
|
else if(map[i] == '3'){
|
|
if(three)
|
|
error(Ebadarg);
|
|
three = 1<<i;
|
|
}
|
|
else
|
|
error(Ebadarg);
|
|
}
|
|
if(map[i])
|
|
error(Ebadarg);
|
|
|
|
memset(buttonmap, 0, 8);
|
|
for(i = 0; i < 8; i++){
|
|
x = 0;
|
|
if(i & 1)
|
|
x |= one;
|
|
if(i & 2)
|
|
x |= two;
|
|
if(i & 4)
|
|
x |= three;
|
|
buttonmap[x] = i;
|
|
}
|
|
}
|
|
|
|
static long
|
|
mousewrite(Chan *c, void *va, long n, int64_t r)
|
|
{
|
|
char *p;
|
|
Point pt;
|
|
Cmdbuf *cb;
|
|
Cmdtab *ct;
|
|
char buf[64];
|
|
int b, msec;
|
|
|
|
p = va;
|
|
switch((uint32_t)c->qid.path){
|
|
case Qdir:
|
|
error(Eisdir);
|
|
|
|
case Qcursor:
|
|
cursoroff(1);
|
|
if(n < 2*4+2*2*16){
|
|
curs = arrow;
|
|
Cursortocursor(&arrow);
|
|
}else{
|
|
n = 2*4+2*2*16;
|
|
curs.offset.x = BGLONG(p+0);
|
|
curs.offset.y = BGLONG(p+4);
|
|
memmove(curs.clr, p+8, 2*16);
|
|
memmove(curs.set, p+40, 2*16);
|
|
Cursortocursor(&curs);
|
|
}
|
|
qlock(&mouse.ql);
|
|
mouse.redraw = 1;
|
|
mouseclock();
|
|
qunlock(&mouse.ql);
|
|
cursoron(1);
|
|
return n;
|
|
|
|
case Qmousectl:
|
|
cb = parsecmd(va, n);
|
|
if(waserror()){
|
|
free(cb);
|
|
nexterror();
|
|
}
|
|
|
|
ct = lookupcmd(cb, mousectlmsg, nelem(mousectlmsg));
|
|
|
|
switch(ct->index){
|
|
case CMswap:
|
|
if(mouseswap)
|
|
setbuttonmap("123");
|
|
else
|
|
setbuttonmap("321");
|
|
mouseswap ^= 1;
|
|
break;
|
|
|
|
case CMscrollswap:
|
|
scrollswap ^= 1;
|
|
break;
|
|
|
|
case CMbuttonmap:
|
|
if(cb->nf == 1)
|
|
setbuttonmap("123");
|
|
else
|
|
setbuttonmap(cb->f[1]);
|
|
break;
|
|
|
|
case CMwildcard:
|
|
mousectl(cb);
|
|
break;
|
|
}
|
|
|
|
free(cb);
|
|
poperror();
|
|
return n;
|
|
|
|
case Qmousein:
|
|
if(n > sizeof buf-1)
|
|
n = sizeof buf -1;
|
|
memmove(buf, va, n);
|
|
buf[n] = 0;
|
|
p = 0;
|
|
pt.x = strtol(buf+1, &p, 0);
|
|
if(p == 0)
|
|
error(Eshort);
|
|
pt.y = strtol(p, &p, 0);
|
|
if(p == 0)
|
|
error(Eshort);
|
|
b = strtol(p, &p, 0);
|
|
msec = strtol(p, &p, 0);
|
|
if(msec == 0)
|
|
msec = TK2MS(sys->ticks);
|
|
mousetrack(pt.x, pt.y, b, msec);
|
|
return n;
|
|
|
|
case Qmouse:
|
|
if(n > sizeof buf-1)
|
|
n = sizeof buf -1;
|
|
memmove(buf, va, n);
|
|
buf[n] = 0;
|
|
p = 0;
|
|
pt.x = strtoul(buf+1, &p, 0);
|
|
if(p == 0)
|
|
error(Eshort);
|
|
pt.y = strtoul(p, 0, 0);
|
|
qlock(&mouse.ql);
|
|
if(ptinrect(pt, gscreen->r)){
|
|
mouse.xy = pt;
|
|
mouse.redraw = 1;
|
|
mouse.track = 1;
|
|
mouseclock();
|
|
}
|
|
qunlock(&mouse.ql);
|
|
return n;
|
|
}
|
|
|
|
error(Egreg);
|
|
return -1;
|
|
}
|
|
|
|
Dev mousedevtab = {
|
|
'm',
|
|
"mouse",
|
|
|
|
mousereset,
|
|
mouseinit,
|
|
devshutdown,
|
|
mouseattach,
|
|
mousewalk,
|
|
mousestat,
|
|
mouseopen,
|
|
mousecreate,
|
|
mouseclose,
|
|
mouseread,
|
|
devbread,
|
|
mousewrite,
|
|
devbwrite,
|
|
devremove,
|
|
devwstat,
|
|
};
|
|
|
|
void
|
|
Cursortocursor(Cursor *c)
|
|
{
|
|
lock(&cursor.l);
|
|
memmove(&cursor.c, c, sizeof(Cursor));
|
|
setcursor(c);
|
|
unlock(&cursor.l);
|
|
}
|
|
|
|
|
|
/*
|
|
* called by the clock routine to redraw the cursor
|
|
*/
|
|
static void
|
|
mouseclock(void)
|
|
{
|
|
if(mouse.track){
|
|
mousetrack(mouse.dx, mouse.dy, mouse.buttons, TK2MS(sys->ticks));
|
|
mouse.track = 0;
|
|
mouse.dx = 0;
|
|
mouse.dy = 0;
|
|
}
|
|
if(mouse.redraw && canlock(&cursor.l)){
|
|
mouse.redraw = 0;
|
|
cursoroff(0);
|
|
mouse.redraw = cursoron(0);
|
|
unlock(&cursor.l);
|
|
}
|
|
drawactive(0);
|
|
}
|
|
|
|
static int
|
|
scale(int x)
|
|
{
|
|
int sign = 1;
|
|
|
|
if(x < 0){
|
|
sign = -1;
|
|
x = -x;
|
|
}
|
|
switch(x){
|
|
case 0:
|
|
case 1:
|
|
case 2:
|
|
case 3:
|
|
break;
|
|
case 4:
|
|
x = 6 + (mouse.acceleration>>2);
|
|
break;
|
|
case 5:
|
|
x = 9 + (mouse.acceleration>>1);
|
|
break;
|
|
default:
|
|
x *= mouse.maxacc;
|
|
break;
|
|
}
|
|
return sign*x;
|
|
}
|
|
|
|
/*
|
|
* called at interrupt level to update the structure and
|
|
* awaken any waiting procs.
|
|
*/
|
|
void
|
|
mousetrack(int dx, int dy, int b, int msec)
|
|
{
|
|
int x, y, lastb;
|
|
|
|
if(gscreen==nil)
|
|
return;
|
|
|
|
if(mouse.acceleration){
|
|
dx = scale(dx);
|
|
dy = scale(dy);
|
|
}
|
|
x = mouse.xy.x + dx;
|
|
if(x < gscreen->clipr.min.x)
|
|
x = gscreen->clipr.min.x;
|
|
if(x >= gscreen->clipr.max.x)
|
|
x = gscreen->clipr.max.x;
|
|
y = mouse.xy.y + dy;
|
|
if(y < gscreen->clipr.min.y)
|
|
y = gscreen->clipr.min.y;
|
|
if(y >= gscreen->clipr.max.y)
|
|
y = gscreen->clipr.max.y;
|
|
|
|
lastb = mouse.buttons;
|
|
mouse.xy = Pt(x, y);
|
|
mouse.buttons = b|kbdbuttons;
|
|
mouse.redraw = 1;
|
|
mouse.counter++;
|
|
mouse.msec = msec;
|
|
|
|
/*
|
|
* if the queue fills, we discard the entire queue and don't
|
|
* queue any more events until a reader polls the mouse.
|
|
*/
|
|
if(!mouse.qfull && lastb != b) { /* add to ring */
|
|
mouse.queue[mouse.wi] = mouse.Mousestate;
|
|
if(++mouse.wi == nelem(mouse.queue))
|
|
mouse.wi = 0;
|
|
if(mouse.wi == mouse.ri)
|
|
mouse.qfull = 1;
|
|
}
|
|
wakeup(&mouse.rend);
|
|
drawactive(1);
|
|
}
|
|
|
|
/*
|
|
* microsoft 3 button, 7 bit bytes
|
|
*
|
|
* byte 0 - 1 L R Y7 Y6 X7 X6
|
|
* byte 1 - 0 X5 X4 X3 X2 X1 X0
|
|
* byte 2 - 0 Y5 Y4 Y3 Y2 Y1 Y0
|
|
* byte 3 - 0 M x x x x x (optional)
|
|
*
|
|
* shift & right button is the same as middle button (for 2 button mice)
|
|
*/
|
|
int
|
|
m3mouseputc(Queue *queue, int c)
|
|
{
|
|
static unsigned char msg[3];
|
|
static int nb;
|
|
static int middle;
|
|
static unsigned char b[] = { 0, 4, 1, 5, 0, 2, 1, 3 };
|
|
short x;
|
|
int dx, dy, newbuttons;
|
|
static uint64_t lasttick;
|
|
uint64_t mt;
|
|
|
|
/* Resynchronize in stream with timing. */
|
|
mt = sys->ticks;
|
|
if(TK2SEC(mt - lasttick) > 2)
|
|
nb = 0;
|
|
lasttick = mt;
|
|
|
|
if(nb==0){
|
|
/*
|
|
* an extra byte comes for middle button motion.
|
|
* only two possible values for the extra byte.
|
|
*/
|
|
if(c == 0x00 || c == 0x20){
|
|
/* an extra byte gets sent for the middle button */
|
|
middle = (c&0x20) ? 2 : 0;
|
|
newbuttons = (mouse.buttons & ~2) | middle;
|
|
mousetrack(0, 0, newbuttons, TK2MS(sys->ticks));
|
|
return 0;
|
|
}
|
|
}
|
|
msg[nb] = c;
|
|
if(++nb == 3){
|
|
nb = 0;
|
|
newbuttons = middle | b[(msg[0]>>4)&3 | (mouseshifted ? 4 : 0)];
|
|
x = (msg[0]&0x3)<<14;
|
|
dx = (x>>8) | msg[1];
|
|
x = (msg[0]&0xc)<<12;
|
|
dy = (x>>8) | msg[2];
|
|
mousetrack(dx, dy, newbuttons, TK2MS(sys->ticks));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* microsoft intellimouse 3 buttons + scroll
|
|
* byte 0 - 1 L R Y7 Y6 X7 X6
|
|
* byte 1 - 0 X5 X4 X3 X2 X1 X0
|
|
* byte 2 - 0 Y5 Y4 Y3 Y2 Y1 Y0
|
|
* byte 3 - 0 0 M % % % %
|
|
*
|
|
* %: 0xf => U , 0x1 => D
|
|
*
|
|
* L: left
|
|
* R: right
|
|
* U: up
|
|
* D: down
|
|
*/
|
|
int
|
|
m5mouseputc(Queue *queue, int c)
|
|
{
|
|
static unsigned char msg[3];
|
|
static int nb;
|
|
static uint64_t lasttick;
|
|
uint64_t mt;
|
|
|
|
/* Resynchronize in stream with timing. */
|
|
mt = sys->ticks;
|
|
if(TK2SEC(mt - lasttick) > 2)
|
|
nb = 0;
|
|
lasttick = mt;
|
|
|
|
msg[nb++] = c & 0x7f;
|
|
if (nb == 4) {
|
|
char dx,dy,newbuttons;
|
|
dx = msg[1] | (msg[0] & 0x3) << 6;
|
|
dy = msg[2] | (msg[0] & 0xc) << 4;
|
|
newbuttons =
|
|
(msg[0] & 0x10) >> (mouseshifted ? 3 : 2)
|
|
| (msg[0] & 0x20) >> 5
|
|
| ( msg[3] == 0x10 ? 0x02 :
|
|
msg[3] == 0x0f ? ScrollUp :
|
|
msg[3] == 0x01 ? ScrollDown : 0 );
|
|
mousetrack(dx, dy, newbuttons, TK2MS(sys->ticks));
|
|
nb = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Logitech 5 byte packed binary mouse format, 8 bit bytes
|
|
*
|
|
* shift & right button is the same as middle button (for 2 button mice)
|
|
*/
|
|
int
|
|
mouseputc(Queue *queue, int c)
|
|
{
|
|
static short msg[5];
|
|
static int nb;
|
|
static unsigned char b[] = {0, 4, 2, 6, 1, 5, 3, 7, 0, 2, 2, 6, 1, 3, 3, 7};
|
|
int dx, dy, newbuttons;
|
|
static uint64_t lasttick;
|
|
uint64_t mt;
|
|
|
|
/* Resynchronize in stream with timing. */
|
|
mt = sys->ticks;
|
|
if(TK2SEC(mt - lasttick) > 2)
|
|
nb = 0;
|
|
lasttick = mt;
|
|
|
|
if((c&0xF0) == 0x80)
|
|
nb=0;
|
|
msg[nb] = c;
|
|
if(c & 0x80)
|
|
msg[nb] |= ~0xFF; /* sign extend */
|
|
if(++nb == 5){
|
|
newbuttons = b[((msg[0]&7)^7) | (mouseshifted ? 8 : 0)];
|
|
dx = msg[1]+msg[3];
|
|
dy = -(msg[2]+msg[4]);
|
|
mousetrack(dx, dy, newbuttons, TK2MS(sys->ticks));
|
|
nb = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
mousechanged(void *v)
|
|
{
|
|
return mouse.lastcounter != mouse.counter ||
|
|
mouse.lastresize != mouse.resize;
|
|
}
|
|
|
|
Point
|
|
mousexy(void)
|
|
{
|
|
return mouse.xy;
|
|
}
|
|
|
|
void
|
|
mouseaccelerate(int x)
|
|
{
|
|
mouse.acceleration = x;
|
|
if(mouse.acceleration < 3)
|
|
mouse.maxacc = 2;
|
|
else
|
|
mouse.maxacc = mouse.acceleration;
|
|
}
|
|
|
|
/*
|
|
* notify reader that screen has been resized
|
|
*/
|
|
void
|
|
mouseresize(void)
|
|
{
|
|
mouse.resize++;
|
|
wakeup(&mouse.rend);
|
|
}
|
|
|