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#ifndef kcursorsaver_h
#define kcursorsaver_h
#include <qcursor.h>
#include <qapplication.h>
/**
* @short sets a cursor and makes sure it's restored on destruction
* Create a KCursorSaver object when you want to set the cursor.
* As soon as it gets out of scope, it will restore the original
* cursor.
*/
class KCursorSaver : public Qt
{
public:
/// constructor taking QCursor shapes
KCursorSaver(Qt::CursorShape shape) {
QApplication::setOverrideCursor( QCursor(shape) );
inited = true;
}
/// copy constructor. The right side won't restore the cursor
KCursorSaver( const KCursorSaver &rhs ) {
*this = rhs;
}
/// restore the cursor
~KCursorSaver() {
if (inited)
QApplication::restoreOverrideCursor();
}
/// call this to explitly restore the cursor
inline void restoreCursor(void) {
QApplication::restoreOverrideCursor();
inited = false;
}
protected:
void operator=( const KCursorSaver &rhs ) {
inited = rhs.inited;
rhs.inited = false;
}
private:
mutable bool inited;
};
/**
* convenience functions
*/
namespace KBusyPtr {
inline KCursorSaver idle() {
return KCursorSaver(QCursor::ArrowCursor);
}
inline KCursorSaver busy() {
return KCursorSaver(QCursor::WaitCursor);
}
}
#endif /*kbusyptr_h_*/
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