FormulaCursor::FormulaCursor (const FormulaCursor& other )
{
m_currentElement=other.currentElement();
m_position=other.position();
m_mark=other.mark();
m_selecting=other.isSelecting();
}
void FormulaCursor::moveTo ( const FormulaCursor& pos )
{
m_currentElement=pos.currentElement();
m_position=pos.position();
m_selecting=pos.isSelecting();
m_mark=pos.mark();
}
void FormulaCommandRemove::undo()
{
FormulaCursor* cursor = new FormulaCursor( m_ownerElement );
cursor->setPosition( m_positionInElement );
foreach( BasicElement* tmp, m_removedElements )
m_ownerElement->insertChild( cursor, tmp );
delete cursor;
}
void FormulaCommandReplace::redo()
{
foreach( BasicElement* tmp, m_replacedElements )
m_ownerElement->removeElement( tmp );
FormulaCursor* cursor = new FormulaCursor( m_ownerElement );
cursor->setPosition( m_positionInElement );
foreach( BasicElement* tmp, m_replacingElements )
m_ownerElement->insertChild( cursor, tmp );
delete cursor;
}
bool FormulaCursor::moveCloseTo(BasicElement* element, FormulaCursor& cursor)
{
if (element->setCursorTo(*this,cursor.getCursorPosition()-element->absoluteBoundingRect().topLeft())) {
return true;
} else {
return false;
}
}
bool TableDataElement::moveCursor ( FormulaCursor& newcursor, FormulaCursor& oldcursor )
{
if (newcursor.isSelecting() ||
newcursor.direction()==MoveLeft || newcursor.direction()==MoveRight) {
return RowElement::moveCursor(newcursor,oldcursor);
} else {
TableRowElement* tr= static_cast<TableRowElement*>(parentElement());
TableElement* te = static_cast<TableElement*>(tr->parentElement());
int rn=te->positionOfChild(tr)/2; //table elements have a cursor
int cn=tr->positionOfChild(this);
//positions before and after each element
if (newcursor.direction()==MoveUp) {
if (rn>1) {
return newcursor.moveCloseTo(te->childElements()[rn-1]->childElements()[cn],oldcursor);
} else {
return false;
}
} else {
if (rn < te->endPosition()/2) {
return newcursor.moveCloseTo(te->childElements()[rn+1]->childElements()[cn],oldcursor);
} else {
return false;
}
}
}
}
bool TableRowElement::setCursorTo(FormulaCursor& cursor, QPointF point)
{
if (cursor.isSelecting()) {
if (m_data.isEmpty() || point.x()<0.0) {
cursor.setCurrentElement(this);
cursor.setPosition(0);
return true;
}
//check if the point is behind all child elements
if (point.x() >= width()) {
cursor.setCurrentElement(this);
cursor.setPosition(endPosition());
return true;
}
}
int i=0;
qreal x=0.0;
TableElement* parentTable = static_cast<TableElement*>( parentElement() );
for (; i<m_data.count()-1; ++i) {
//Find the child element the point is in
x+=parentTable->columnWidth( i );
if (x>=point.x()) {
break;
}
}
if (cursor.isSelecting()) {
//we don't need to change current element because we are already in this element
if (cursor.mark()<=i) {
cursor.setPosition(i+1);
}
else {
cursor.setPosition(i);
}
return true;
} else {
point-=m_data[i]->origin();
return m_data[i]->setCursorTo(cursor,point);
}
}
bool TableRowElement::acceptCursor( const FormulaCursor& cursor )
{
return (cursor.isSelecting());
}
bool TableRowElement::moveCursor(FormulaCursor& newcursor, FormulaCursor& oldcursor)
{
//TODO: Moving the cursor vertically in the tableelement is a little bit fragile
if ( (newcursor.isHome() && newcursor.direction()==MoveLeft) ||
(newcursor.isEnd() && newcursor.direction()==MoveRight) ) {
return false;
}
int rowpos=parentElement()->positionOfChild(this);
int colpos=(newcursor.position()!=endPosition() ? newcursor.position() : newcursor.position()-1);
if (newcursor.isSelecting()) {
switch(newcursor.direction()) {
case MoveLeft:
newcursor.moveTo(this,newcursor.position()-1);
break;
case MoveRight:
newcursor.moveTo(this,newcursor.position()+1);
break;
case MoveUp:
case MoveDown:
return false;
default:
break;
}
} else {
switch(newcursor.direction()) {
case MoveLeft:
newcursor.setCurrentElement(m_data[newcursor.position()-1]);
newcursor.moveEnd();
break;
case MoveRight:
newcursor.setCurrentElement(m_data[newcursor.position()]);
newcursor.moveHome();
break;
case MoveUp:
if ( rowpos>1 ) {
BasicElement* b=parentElement()->childElements()[rowpos/2-1]->childElements()[colpos];
return newcursor.moveCloseTo(b, oldcursor);
} else {
return false;
}
case MoveDown:
if ( rowpos<endPosition()-1 ) {
BasicElement* b=parentElement()->childElements()[rowpos/2+1]->childElements()[colpos];
return newcursor.moveCloseTo(b, oldcursor);
} else {
return false;
}
default:
break;
}
}
return true;
}
bool FixedElement::moveHorSituation(FormulaCursor& newcursor, FormulaCursor& oldcursor, int pos1, int pos2) {
if ((newcursor.position()/2==pos1 && newcursor.direction()==MoveUp) ||
(newcursor.position()/2==pos2 && newcursor.direction()==MoveDown) ||
(newcursor.position()==2*pos1 && newcursor.direction()==MoveLeft) ||
(newcursor.position()==2*pos2+1 && newcursor.direction()==MoveRight) ) {
return false;
}
switch (newcursor.direction()) {
case MoveLeft:
if (newcursor.position()==2*pos2+1) {
newcursor.moveTo(newcursor.currentElement()->childElements()[pos2]);
} else {
newcursor.moveTo(newcursor.currentElement()->childElements()[pos1]);
}
break;
case MoveRight:
if (newcursor.position()==2*pos1) {
newcursor.moveTo(newcursor.currentElement()->childElements()[pos1]);
} else {
newcursor.moveTo(newcursor.currentElement()->childElements()[pos2]);
}
break;
case MoveUp:
case MoveDown:
return newcursor.moveCloseTo(childElements()[newcursor.direction()==MoveUp ? pos1 : pos2],oldcursor);
case NoDirection:
break;
}
return true;
}