const QRect QDesktopWidget::availableGeometry(int screen) const
{
Q_D(const QDesktopWidget);
if (qt_desktopwidget_workarea_dirty) {
// the workareas are dirty, invalidate them
for (int i = 0; i < d->screenCount; ++i)
d->workareas[i] = QRect();
qt_desktopwidget_workarea_dirty = false;
}
if (screen < 0 || screen >= d->screenCount)
screen = d->defaultScreen;
if (d->workareas[screen].isValid())
return d->workareas[screen];
if (X11->isSupportedByWM(ATOM(_NET_WORKAREA))) {
int x11Screen = isVirtualDesktop() ? DefaultScreen(X11->display) : screen;
Atom ret;
int format, e;
unsigned char *data = 0;
unsigned long nitems, after;
e = XGetWindowProperty(X11->display,
QX11Info::appRootWindow(x11Screen),
ATOM(_NET_WORKAREA), 0, 4, False, XA_CARDINAL,
&ret, &format, &nitems, &after, &data);
QRect workArea;
if (e == Success && ret == XA_CARDINAL &&
format == 32 && nitems == 4) {
long *workarea = (long *) data;
workArea = QRect(workarea[0], workarea[1], workarea[2], workarea[3]);
} else {
workArea = screenGeometry(screen);
}
if (isVirtualDesktop()) {
// intersect the workarea (which spawns all Xinerama screens) with the rect for the
// requested screen
workArea &= screenGeometry(screen);
}
d->workareas[screen] = workArea;
if (data)
XFree(data);
} else {
d->workareas[screen] = screenGeometry(screen);
}
return d->workareas[screen];
}
const QRect QDesktopWidget::availableGeometry(int screen) const
{
Q_D(const QDesktopWidget);
if (qt_desktopwidget_workarea_dirty) {
// the workareas are dirty, invalidate them
for (int i = 0; i < d->screenCount; ++i)
d->workareas[i] = QRect();
qt_desktopwidget_workarea_dirty = false;
}
if (screen < 0 || screen >= d->screenCount)
screen = d->defaultScreen;
if (d->workareas[screen].isValid())
return d->workareas[screen];
if ((d->screenCount == 1 || !isVirtualDesktop())
&& X11->isSupportedByWM(ATOM(_NET_WORKAREA))) {
Atom ret;
int format, e;
unsigned char *data = 0;
unsigned long nitems, after;
e = XGetWindowProperty(X11->display,
QX11Info::appRootWindow(screen),
ATOM(_NET_WORKAREA), 0, 4, False, XA_CARDINAL,
&ret, &format, &nitems, &after, &data);
if (e == Success && ret == XA_CARDINAL &&
format == 32 && nitems == 4) {
long *workarea = (long *) data;
d->workareas[screen].setRect(workarea[0], workarea[1],
workarea[2], workarea[3]);
} else {
d->workareas[screen] = screenGeometry(screen);
}
if (data)
XFree(data);
} else {
d->workareas[screen] = screenGeometry(screen);
}
return d->workareas[screen];
}
int QDesktopWidget::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QWidget::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0: resized((*reinterpret_cast< int(*)>(_a[1]))); break;
case 1: workAreaResized((*reinterpret_cast< int(*)>(_a[1]))); break;
case 2: screenCountChanged((*reinterpret_cast< int(*)>(_a[1]))); break;
default: ;
}
_id -= 3;
}
#ifndef QT_NO_PROPERTIES
else if (_c == QMetaObject::ReadProperty) {
void *_v = _a[0];
switch (_id) {
case 0: *reinterpret_cast< bool*>(_v) = isVirtualDesktop(); break;
case 1: *reinterpret_cast< int*>(_v) = screenCount(); break;
case 2: *reinterpret_cast< int*>(_v) = primaryScreen(); break;
}
_id -= 3;
} else if (_c == QMetaObject::WriteProperty) {
_id -= 3;
} else if (_c == QMetaObject::ResetProperty) {
_id -= 3;
} else if (_c == QMetaObject::QueryPropertyDesignable) {
_id -= 3;
} else if (_c == QMetaObject::QueryPropertyScriptable) {
_id -= 3;
} else if (_c == QMetaObject::QueryPropertyStored) {
_id -= 3;
} else if (_c == QMetaObject::QueryPropertyEditable) {
_id -= 3;
} else if (_c == QMetaObject::QueryPropertyUser) {
_id -= 3;
}
#endif // QT_NO_PROPERTIES
return _id;
}
