static int write_padded(const char *p, size_t sz, size_t pad, char pch,
bool plr, const char *prfx, re_vprintf_h *vph,
void *arg)
{
const size_t prfx_len = str_len(prfx);
int err = 0;
pad -= MIN(pad, prfx_len);
if (prfx && pch == '0')
err |= vph(prfx, prfx_len, arg);
while (!plr && (pad-- > sz))
err |= vph(&pch, 1, arg);
if (prfx && pch != '0')
err |= vph(prfx, prfx_len, arg);
if (p && sz)
err |= vph(p, sz, arg);
while (plr && pad-- > sz)
err |= vph(&pch, 1, arg);
return err;
}
/**
* Snap to a coordinate in the drawing using the current snap mode.
*
* @param e A mouse event.
* @return The coordinates of the point or an invalid vector.
*/
RS_Vector RS_Snapper::snapPoint(QMouseEvent* e) {
RS_DEBUG->print("RS_Snapper::snapPoint");
snapSpot = RS_Vector(false);
RS_Vector t(false);
if (e==NULL) {
RS_DEBUG->print(RS_Debug::D_WARNING,
"RS_Snapper::snapPoint: event is NULL");
return snapSpot;
}
RS_Vector mouseCoord = graphicView->toGraph(e->x(), e->y());
double ds2Min=RS_MAXDOUBLE*RS_MAXDOUBLE;
if (snapMode.snapEndpoint) {
t = snapEndpoint(mouseCoord);
double&& ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
snapSpot = t;
}
}
if (snapMode.snapCenter) {
t = snapCenter(mouseCoord);
double&& ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
snapSpot = t;
}
}
if (snapMode.snapMiddle) {
//this is still brutal force
//todo: accept value from widget QG_SnapMiddleOptions
if(RS_DIALOGFACTORY != NULL) {
RS_DIALOGFACTORY->requestSnapMiddleOptions(middlePoints, snapMode.snapMiddle);
}
t = snapMiddle(mouseCoord);
double&& ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
snapSpot = t;
}
}
if (snapMode.snapDistance) {
//this is still brutal force
//todo: accept value from widget QG_SnapDistOptions
if(RS_DIALOGFACTORY != NULL) {
RS_DIALOGFACTORY->requestSnapDistOptions(distance, snapMode.snapDistance);
}
t = snapDist(mouseCoord);
double&& ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
snapSpot = t;
}
}
if (snapMode.snapIntersection) {
t = snapIntersection(mouseCoord);
double&& ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
snapSpot = t;
}
}
if (snapMode.snapOnEntity &&
snapSpot.distanceTo(mouseCoord) > snapMode.distance) {
t = snapOnEntity(mouseCoord);
double&& ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
snapSpot = t;
}
}
if (snapMode.snapGrid) {
t = snapGrid(mouseCoord);
double&& ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
snapSpot = t;
}
}
if( ! snapSpot.valid ) {
snapSpot=mouseCoord; //default to snapFree
} else {
// std::cout<<"mouseCoord.distanceTo(snapSpot)="<<mouseCoord.distanceTo(snapSpot)<<std::endl;
// std::cout<<"snapRange="<<snapRange<<std::endl;
//retreat to snapFree when distance is more than half grid
RS_Vector&& ds=mouseCoord - snapSpot;
RS_Vector&& grid=graphicView->getGrid()->getCellVector()*0.5;
if( fabs(ds.x) > fabs(grid.x) || fabs(ds.y) > fabs(grid.y) ) snapSpot = mouseCoord;
//another choice is to keep snapRange in GUI coordinates instead of graph coordinates
// if (mouseCoord.distanceTo(snapSpot) > snapRange ) snapSpot = mouseCoord;
}
//if (snapSpot.distanceTo(mouseCoord) > snapMode.distance) {
// handle snap restrictions that can be activated in addition
// to the ones above:
//apply restriction
RS_Vector rz = graphicView->getRelativeZero();
RS_Vector vpv(rz.x,snapSpot.y);
RS_Vector vph(snapSpot.x,rz.y);
switch (snapMode.restriction) {
case RS2::RestrictOrthogonal:
snapCoord= ( mouseCoord.distanceTo(vpv)< mouseCoord.distanceTo(vph))?
vpv:vph;
break;
case RS2::RestrictHorizontal:
snapCoord = vph;
break;
case RS2::RestrictVertical:
snapCoord = vpv;
break;
//case RS2::RestrictNothing:
default:
snapCoord = snapSpot;
break;
}
//}
//else snapCoord = snapSpot;
drawSnapper();
if (RS_DIALOGFACTORY!=NULL) {
RS_DIALOGFACTORY->updateCoordinateWidget(snapCoord,
snapCoord - graphicView->getRelativeZero());
}
RS_DEBUG->print("RS_Snapper::snapPoint: OK");
return snapCoord;
}
/**
* Print a formatted string
*
* @param fmt Formatted string
* @param ap Variable argument
* @param vph Print handler
* @param arg Handler argument
*
* @return 0 if success, otherwise errorcode
*
* Extensions:
*
* <pre>
* %b (char *, size_t) Buffer string with pointer and length
* %r (struct pl) Pointer-length object
* %w (uint8_t *, size_t) Binary buffer to hexadecimal format
* %j (struct sa *) Socket address - address part only
* %J (struct sa *) Socket address and port - like 1.2.3.4:1234
* %H (re_printf_h *, void *) Print handler with argument
* %v (char *fmt, va_list *) Variable argument list
* %m (int) Describe an error code
* </pre>
*
* Reserved for the future:
*
* %k
* %y
*
*/
int re_vhprintf(const char *fmt, va_list ap, re_vprintf_h *vph, void *arg)
{
uint8_t base, *bptr;
char pch, ch, num[NUM_SIZE], addr[64], msg[256];
enum length_modifier lenmod = LENMOD_NONE;
struct re_printf pf;
bool fm = false, plr = false;
const struct pl *pl;
size_t pad = 0, fpad = -1, len, i;
const char *str, *p = fmt, *p0 = fmt;
const struct sa *sa;
re_printf_h *ph;
void *ph_arg;
va_list *apl;
int err = 0;
void *ptr;
uint64_t n;
int64_t sn;
bool uc = false;
double dbl;
if (!fmt || !vph)
return EINVAL;
pf.vph = vph;
pf.arg = arg;
for (;*p && !err; p++) {
if (!fm) {
if (*p != '%')
continue;
pch = ' ';
plr = false;
pad = 0;
fpad = -1;
lenmod = LENMOD_NONE;
uc = false;
if (p > p0)
err |= vph(p0, p - p0, arg);
fm = true;
continue;
}
fm = false;
base = 10;
switch (*p) {
case '-':
plr = true;
fm = true;
break;
case '.':
fpad = pad;
pad = 0;
fm = true;
break;
case '%':
ch = '%';
err |= vph(&ch, 1, arg);
break;
case 'b':
str = va_arg(ap, const char *);
len = va_arg(ap, size_t);
err |= write_padded(str, str ? len : 0, pad, ' ',
plr, NULL, vph, arg);
break;
case 'c':
ch = va_arg(ap, int);
err |= write_padded(&ch, 1, pad, ' ', plr, NULL,
vph, arg);
break;
case 'd':
case 'i':
switch (lenmod) {
case LENMOD_SIZE:
sn = va_arg(ap, ssize_t);
break;
default:
case LENMOD_LONG_LONG:
sn = va_arg(ap, signed long long);
break;
case LENMOD_LONG:
sn = va_arg(ap, signed long);
break;
case LENMOD_NONE:
sn = va_arg(ap, signed);
break;
}
len = local_itoa(num, (sn < 0) ? -sn : sn, base,
false);
err |= write_padded(num, len, pad,
plr ? ' ' : pch, plr,
(sn < 0) ? prfx_neg : NULL,
vph, arg);
break;
case 'f':
case 'F':
dbl = va_arg(ap, double);
if (fpad == (size_t)-1) {
fpad = pad;
pad = 0;
}
if (isinf(dbl)) {
err |= write_padded("inf", 3, fpad,
' ', plr, NULL, vph, arg);
}
else if (isnan(dbl)) {
err |= write_padded("nan", 3, fpad,
' ', plr, NULL, vph, arg);
}
else {
len = local_ftoa(num, dbl,
pad ? min(pad, DEC_SIZE) : 6);
err |= write_padded(num, len, fpad,
plr ? ' ' : pch, plr,
(dbl<0) ? prfx_neg : NULL,
vph, arg);
}
break;
case 'H':
ph = va_arg(ap, re_printf_h *);
ph_arg = va_arg(ap, void *);
if (ph)
err |= ph(&pf, ph_arg);
break;
case 'l':
++lenmod;
fm = true;
break;
case 'm':
str = str_error(va_arg(ap, int), msg, sizeof(msg));
err |= write_padded(str, str_len(str), pad,
' ', plr, NULL, vph, arg);
break;
case 'p':
ptr = va_arg(ap, void *);
if (ptr) {
len = local_itoa(num, (unsigned long int)ptr,
16, false);
err |= write_padded(num, len, pad,
plr ? ' ' : pch, plr,
prfx_hex, vph, arg);
}
else {
err |= write_padded(str_nil,
sizeof(str_nil) - 1,
pad, ' ', plr, NULL,
vph, arg);
}
break;
case 'r':
pl = va_arg(ap, const struct pl *);
err |= write_padded(pl ? pl->p : NULL,
(pl && pl->p) ? pl->l : 0,
pad, ' ', plr, NULL, vph, arg);
break;
case 's':
str = va_arg(ap, const char *);
err |= write_padded(str, str_len(str), pad,
' ', plr, NULL, vph, arg);
break;
case 'X':
uc = true;
/*@fallthrough@*/
case 'x':
base = 16;
/*@fallthrough@*/
case 'u':
switch (lenmod) {
case LENMOD_SIZE:
n = va_arg(ap, size_t);
break;
default:
case LENMOD_LONG_LONG:
n = va_arg(ap, unsigned long long);
break;
case LENMOD_LONG:
n = va_arg(ap, unsigned long);
break;
case LENMOD_NONE:
n = va_arg(ap, unsigned);
break;
}
len = local_itoa(num, n, base, uc);
err |= write_padded(num, len, pad,
plr ? ' ' : pch, plr, NULL,
vph, arg);
break;
case 'v':
str = va_arg(ap, char *);
apl = va_arg(ap, va_list *);
if (!str || !apl)
break;
err |= re_vhprintf(str, *apl, vph, arg);
break;
case 'W':
uc = true;
/*@fallthrough@*/
case 'w':
bptr = va_arg(ap, uint8_t *);
len = va_arg(ap, size_t);
len = bptr ? len : 0;
pch = plr ? ' ' : pch;
while (!plr && pad-- > (len * 2))
err |= vph(&pch, 1, arg);
for (i=0; i<len; i++) {
const uint8_t v = *bptr++;
uint32_t l = local_itoa(num, v, 16, uc);
err |= write_padded(num, l, 2, '0',
false, NULL, vph, arg);
}
while (plr && pad-- > (len * 2))
err |= vph(&pch, 1, arg);
break;
case 'z':
lenmod = LENMOD_SIZE;
fm = true;
break;
case 'j':
sa = va_arg(ap, struct sa *);
if (!sa)
break;
if (sa_ntop(sa, addr, sizeof(addr))) {
err |= write_padded("?", 1, pad, ' ',
plr, NULL, vph, arg);
break;
}
err |= write_padded(addr, strlen(addr), pad, ' ',
plr, NULL, vph, arg);
break;
case 'J':
sa = va_arg(ap, struct sa *);
if (!sa)
break;
if (sa_ntop(sa, addr, sizeof(addr))) {
err |= write_padded("?", 1, pad, ' ',
plr, NULL, vph, arg);
break;
}
#ifdef HAVE_INET6
if (AF_INET6 == sa_af(sa)) {
ch = '[';
err |= vph(&ch, 1, arg);
}
#endif
err |= write_padded(addr, strlen(addr), pad, ' ',
plr, NULL, vph, arg);
#ifdef HAVE_INET6
if (AF_INET6 == sa_af(sa)) {
ch = ']';
err |= vph(&ch, 1, arg);
}
#endif
ch = ':';
err |= vph(&ch, 1, arg);
len = local_itoa(num, sa_port(sa), 10, false);
err |= write_padded(num, len, pad,
plr ? ' ' : pch, plr, NULL,
vph, arg);
break;
default:
if (('0' <= *p) && (*p <= '9')) {
if (!pad && ('0' == *p)) {
pch = '0';
}
else {
pad *= 10;
pad += *p - '0';
}
fm = true;
break;
}
ch = '?';
err |= vph(&ch, 1, arg);
break;
}
if (!fm)
p0 = p + 1;
}
if (!fm && p > p0)
err |= vph(p0, p - p0, arg);
return err;
}
/**
* Snap to a coordinate in the drawing using the current snap mode.
*
* @param e A mouse event.
* @return The coordinates of the point or an invalid vector.
*/
RS_Vector RS_Snapper::snapPoint(QMouseEvent* e) {
RS_DEBUG->print("RS_Snapper::snapPoint");
pImpData->snapSpot = RS_Vector(false);
RS_Vector t(false);
if (!e) {
RS_DEBUG->print(RS_Debug::D_WARNING,
"RS_Snapper::snapPoint: event is nullptr");
return pImpData->snapSpot;
}
RS_Vector mouseCoord = graphicView->toGraph(e->x(), e->y());
double ds2Min=RS_MAXDOUBLE*RS_MAXDOUBLE;
if (snapMode.snapEndpoint) {
t = snapEndpoint(mouseCoord);
double ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
pImpData->snapSpot = t;
}
}
if (snapMode.snapCenter) {
t = snapCenter(mouseCoord);
double ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
pImpData->snapSpot = t;
}
}
if (snapMode.snapMiddle) {
//this is still brutal force
//todo: accept value from widget QG_SnapMiddleOptions
if(RS_DIALOGFACTORY ) {
RS_DIALOGFACTORY->requestSnapMiddleOptions(middlePoints, snapMode.snapMiddle);
}
t = snapMiddle(mouseCoord);
double ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
pImpData->snapSpot = t;
}
}
if (snapMode.snapDistance) {
//this is still brutal force
//todo: accept value from widget QG_SnapDistOptions
if(RS_DIALOGFACTORY ) {
RS_DIALOGFACTORY->requestSnapDistOptions(m_SnapDistance, snapMode.snapDistance);
}
t = snapDist(mouseCoord);
double ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
pImpData->snapSpot = t;
}
}
if (snapMode.snapIntersection) {
t = snapIntersection(mouseCoord);
double ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
pImpData->snapSpot = t;
}
}
if (snapMode.snapOnEntity &&
pImpData->snapSpot.distanceTo(mouseCoord) > snapMode.distance) {
t = snapOnEntity(mouseCoord);
double ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
pImpData->snapSpot = t;
}
}
if (snapMode.snapGrid) {
t = snapGrid(mouseCoord);
double ds2=mouseCoord.squaredTo(t);
if (ds2 < ds2Min){
ds2Min=ds2;
pImpData->snapSpot = t;
}
}
if( !pImpData->snapSpot.valid ) {
pImpData->snapSpot=mouseCoord; //default to snapFree
} else {
// std::cout<<"mouseCoord.distanceTo(snapSpot)="<<mouseCoord.distanceTo(snapSpot)<<std::endl;
// std::cout<<"snapRange="<<snapRange<<std::endl;
//retreat to snapFree when distance is more than half grid
if(snapMode.snapFree){
RS_Vector const& ds=mouseCoord - pImpData->snapSpot;
RS_Vector const& grid=graphicView->getGrid()->getCellVector()*0.5;
if( fabs(ds.x) > fabs(grid.x) || fabs(ds.y) > fabs(grid.y) ) pImpData->snapSpot = mouseCoord;
}
//another choice is to keep snapRange in GUI coordinates instead of graph coordinates
// if (mouseCoord.distanceTo(snapSpot) > snapRange ) snapSpot = mouseCoord;
}
//if (snapSpot.distanceTo(mouseCoord) > snapMode.distance) {
// handle snap restrictions that can be activated in addition
// to the ones above:
//apply restriction
RS_Vector rz = graphicView->getRelativeZero();
RS_Vector vpv(rz.x, pImpData->snapSpot.y);
RS_Vector vph(pImpData->snapSpot.x,rz.y);
switch (snapMode.restriction) {
case RS2::RestrictOrthogonal:
pImpData->snapCoord= ( mouseCoord.distanceTo(vpv)< mouseCoord.distanceTo(vph))?
vpv:vph;
break;
case RS2::RestrictHorizontal:
pImpData->snapCoord = vph;
break;
case RS2::RestrictVertical:
pImpData->snapCoord = vpv;
break;
//case RS2::RestrictNothing:
default:
pImpData->snapCoord = pImpData->snapSpot;
break;
}
//}
//else snapCoord = snapSpot;
snapPoint(pImpData->snapSpot, false);
//If the cursor is too-close to the snapSpot (by number of screen pixels), then hide it.
if (graphicView->toGui(pImpData->snapSpot).distanceTo(graphicView->toGui(mouseCoord)) < 32 /* xenoRadius */)
{
graphicView->setCursor(Qt::BlankCursor);
}
else
{
graphicView->setCursor(Qt::CrossCursor);
}
return pImpData->snapCoord;
}