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