/**
* Creates a product-maker and starts it in a new thread.
*
* @retval 0 Success.
* @retval 1 Usage failure. \c nplStart() called.
* @retval 2 O/S failure. \c nplStart() called.
*/
static int spawnProductMaker(
const pthread_attr_t* const attr, /**< [in] Thread-creation
* attributes */
Fifo* const fifo, /**< [in] Pointer to FIFO from
* which to get data */
LdmProductQueue* const productQueue, /**< [in] LDM product-queue into
* which to put data-products
* */
ProductMaker** const productMaker, /**< [out] Pointer to pointer to
* returned product-maker */
pthread_t* const thread) /**< [out] Pointer to pointer
* to created thread */
{
ProductMaker* pm;
int status = pmNew(fifo, productQueue, &pm);
if (0 != status) {
NPL_ADD0("Couldn't create new LDM product-maker");
status = 1;
}
else {
pthread_t thrd;
if (0 != (status = pthread_create(&thrd, attr, pmStart, pm))) {
NPL_ERRNUM0(status, "Couldn't start product-maker thread");
status = 1;
}
else {
*productMaker = pm;
*thread = thrd;
}
}
return status;
}
// static
HPOINTER QPixmap::toPmHPOINTER(const QIcon &icon, bool isPointer,
int hotX, int hotY, bool embedRealAlpha,
bool isMini)
{
if (icon.isNull())
return NULLHANDLE;
// get the system icon size
int w = WinQuerySysValue(HWND_DESKTOP, isPointer ? SV_CXPOINTER : SV_CXICON);
int h = WinQuerySysValue(HWND_DESKTOP, isPointer ? SV_CYPOINTER : SV_CYICON);
if (!isPointer && isMini) {
w = w / 2;
h = h / 2;
}
// obtain the closest (but never larger) icon size we have
QSize size = icon.actualSize(QSize(w, h));
QPixmap pm = icon.pixmap(size);
if (pm.isNull())
return NULLHANDLE;
// if we got a smaller pixmap then center it inside the box matching the
// system size instead of letting WinCreatePointerIndirect() scale (this
// covers a usual case when we get 32/16 px pixmaps on a 120 DPI system
// where the icon size is 40/20 px respectively): scaling such small images
// looks really ugly.
if (!pm.isNull() && (pm.width() < w || pm.height() < h)) {
Q_ASSERT(pm.width() <= w && pm.height() <= h);
QPixmap pmNew(w, h);
pmNew.fill(Qt::transparent);
QPainter painter(&pmNew);
int dx = (w - pm.width()) / 2;
int dy = (h - pm.height()) / 2;
painter.drawPixmap(dx, dy, pm);
pm = pmNew;
hotX += dx;
hotY += dy;
}
POINTERINFO info;
info.fPointer = isPointer;
info.xHotspot = hotX;
info.yHotspot = pm.height() - hotY - 1;
info.hbmColor = pm.toPmHBITMAP(&info.hbmPointer, embedRealAlpha);
info.hbmMiniPointer = NULLHANDLE;
info.hbmMiniColor = NULLHANDLE;
HPOINTER hIcon = WinCreatePointerIndirect(HWND_DESKTOP, &info);
GpiDeleteBitmap(info.hbmPointer);
GpiDeleteBitmap(info.hbmColor);
return hIcon;
}
static void *heartbeatDeamon(void *vptr)
/* Send out a beat every now and again to hub. */
{
struct paraMessage *pm;
while (alive)
{
sleep(MINUTE/4);
findNow();
pm = pmNew(0,0);
pmSet(pm, "heartbeat");
hubMessagePut(pm);
}
return NULL;
}
