void
Property::accept(BaseVisitor & inoutVisitor) throw(Error) {
try
{
runVisitor( *this, inoutVisitor );
}
catch( Error &e )
{
e.setCurrentLocation(
__FUNCTION__, __FILE__, __LINE__ );
throw;
}
}
/*!
* \author Anders Fernström
* \date 2005-11-29
* \date 2006-03-03 (update)
*
* \brief Update the scrollarea so the correct area is displayed
*
* 2005-12-08 AF, remade function becuase the earlier version hade
* some large bugs. Didn't calculate cells position correct, becuase
* qt:s layout system reset position to 0 in every groupcell and
* layout are probobly not set correctly.
* 2006-03-03 AF, ignore move if the cursor it at the end of the
* document
*/
void CellDocument::updateScrollArea()
{
if( scroll_->verticalScrollBar()->isVisible() )
{
CellCursor *cursor = getCursor();
if( cursor )
{
// ignore, if selected cell is a groupcell
if( typeid( *cursor->currentCell() ) != typeid( CellGroup ) )
{
// calculate the position of the cursor, by adding the height
// of all the cells before the cellcursor, using a visitor
CursorPosVisitor visitor;
runVisitor( visitor );
int pos = visitor.position();
// size of scrollarea
int scrollTop = scroll_->widget()->visibleRegion().boundingRect().top();
int scrollBottom = scroll_->widget()->visibleRegion().boundingRect().bottom();
// cell height
int height = cursor->currentCell()->height();
#ifndef QT_NO_DEBUG_OUTPUT
cout << "*********************************************" << endl;
cout << "SCROLL TOP: " << scrollTop << endl;
cout << "SCROLL BOTTOM: " << scrollBottom << endl;
cout << "CELL CURSOR: " << pos << endl;
cout << "CELL HEIGHT: " << height << endl;
#endif
// TO BIG
if( height > (scrollBottom-scrollTop) )
{
qDebug( "TO BIG" );
// cell so big that it span over entire viewarea
return;
}
// END OF DOCUMENT
else if( pos > (scroll_->widget()->height() - 2 ) &&
scrollBottom > (scroll_->widget()->height() - 2 ) )
{
#ifndef QT_NO_DEBUG_OUTPUT
cout << "END OF DOCUMENT, widget height(" << scroll_->widget()->height() << ")" << endl;
#endif
// 2006-03-03 AF, ignore if cursor at end of document
return;
}
// UP
else if( (pos - height) < scrollTop )
{
// cursor have moved above the viewarea of the
// scrollbar, move up the scrollbar
// remove cell height + a little extra
pos -= (height + 10);
if( pos < 0 )
pos = 0;
// set new scrollvalue
cout << "UP: old(" << scroll_->verticalScrollBar()->value() << "), new(" << pos << ")" << endl;
scroll_->verticalScrollBar()->setValue( pos );
}
// DOWN
else if( pos > (scrollBottom - 10) )
{
// cursor have moved below the viewarea of the
// scrollbar, move down the scrollbar
// add cell height + a little extra to scrollbar
//pos = height + 20 + scroll_->verticalScrollBar()->value();
// add differens between cell cursor position och scroll bottom
// to the scroll value
pos = scroll_->verticalScrollBar()->value() + (pos - (scrollBottom - 10));
if( pos >= scroll_->verticalScrollBar()->maximum() )
{
#ifndef QT_NO_DEBUG_OUTPUT
cout << "more then max!" << endl;
#endif
scroll_->verticalScrollBar()->triggerAction( QAbstractSlider::SliderToMaximum );
//pos = scroll_->verticalScrollBar()->maximum();
// a little extra to the max value of the scrollbar
//scroll_->verticalScrollBar()->setMaximum( 5 +
// scroll_->verticalScrollBar()->maximum() );
}
else
{
// set new scrollvalue
#ifndef QT_NO_DEBUG_OUTPUT
cout << "DOWN: old(" << scroll_->verticalScrollBar()->value() << "), new(" << pos << ")" << endl;
#endif
scroll_->verticalScrollBar()->setValue( pos );
}
}
}
}
}
}
