void CtrlTree::handleEvent( EvtGeneric &rEvent )
{
bool bChangedPosition = false;
VarTree::Iterator toShow; bool needShow = false;
if( rEvent.getAsString().find( "key:down" ) != string::npos )
{
int key = ((EvtKey&)rEvent).getKey();
VarTree::Iterator it;
bool previousWasSelected = false;
/* Delete the selection */
if( key == KEY_DELETE )
{
/* Find first non selected item before m_pLastSelected */
VarTree::Iterator it_sel = m_flat ? m_rTree.firstLeaf()
: m_rTree.begin();
for( it = (m_flat ? m_rTree.firstLeaf() : m_rTree.begin());
it != m_rTree.end();
it = (m_flat ? m_rTree.getNextLeaf( it )
: m_rTree.getNextVisibleItem( it )) )
{
if( &*it == m_pLastSelected ) break;
if( !it->isSelected() ) it_sel = it;
}
/* Delete selected stuff */
m_rTree.delSelected();
/* Verify if there is still sthg selected (e.g read-only items) */
m_pLastSelected = NULL;
for( it = (m_flat ? m_rTree.firstLeaf() : m_rTree.begin());
it != m_rTree.end();
it = (m_flat ? m_rTree.getNextLeaf( it )
: m_rTree.getNextVisibleItem( it )) )
{
if( it->isSelected() )
m_pLastSelected = &*it;
}
/* if everything was deleted, use it_sel as last selection */
if( !m_pLastSelected )
{
it_sel->setSelected( true );
m_pLastSelected = &*it_sel;
}
// Redraw the control
makeImage();
notifyLayout();
}
else if( key == KEY_PAGEDOWN )
{
it = m_firstPos;
int i = (int)(maxItems()*1.5);
while( i >= 0 )
{
VarTree::Iterator it_old = it;
it = m_flat ? m_rTree.getNextLeaf( it )
: m_rTree.getNextVisibleItem( it );
/* End is already visible, dont' scroll */
if( it == m_rTree.end() )
{
it = it_old;
break;
}
needShow = true;
i--;
}
if( needShow )
{
ensureVisible( it );
makeImage();
notifyLayout();
}
}
else if (key == KEY_PAGEUP )
{
it = m_firstPos;
int i = maxItems();
while( i >= maxItems()/2 )
{
it = m_flat ? m_rTree.getPrevLeaf( it )
: m_rTree.getPrevVisibleItem( it );
/* End is already visible, dont' scroll */
if( it == ( m_flat ? m_rTree.firstLeaf() : m_rTree.begin() ) )
{
break;
}
i--;
}
ensureVisible( it );
makeImage();
notifyLayout();
}
else if ( key == KEY_UP ||
key == KEY_DOWN ||
key == KEY_LEFT ||
key == KEY_RIGHT ||
key == KEY_ENTER ||
key == ' ' )
{
for( it = m_flat ? m_rTree.firstLeaf() : m_rTree.begin();
it != m_rTree.end();
it = m_flat ? m_rTree.getNextLeaf( it )
: m_rTree.getNextVisibleItem( it ) )
{
VarTree::Iterator next = m_flat ?
m_rTree.getNextLeaf( it ) :
m_rTree.getNextVisibleItem( it );
if( key == KEY_UP )
{
// Scroll up one item
if( ( it->parent()
&& it != it->parent()->begin() )
|| &*it != m_pLastSelected )
{
bool nextWasSelected = ( &*next == m_pLastSelected );
it->setSelected( nextWasSelected );
if( nextWasSelected )
{
m_pLastSelected = &*it;
needShow = true; toShow = it;
}
}
}
else if( key == KEY_DOWN )
{
// Scroll down one item
if( ( it->parent()
&& next != it->parent()->end() )
|| &*it != m_pLastSelected )
{
it->setSelected( previousWasSelected );
}
if( previousWasSelected )
{
m_pLastSelected = &*it;
needShow = true; toShow = it;
previousWasSelected = false;
}
else
{
previousWasSelected = ( &*it == m_pLastSelected );
}
// Fix last tree item selection
if( ( m_flat ? m_rTree.getNextLeaf( it )
: m_rTree.getNextVisibleItem( it ) ) == m_rTree.end()
&& &*it == m_pLastSelected )
{
it->setSelected( true );
}
}
else if( key == KEY_RIGHT )
{
// Go down one level (and expand node)
if( &*it == m_pLastSelected )
{
if( it->isExpanded() )
{
if( it->size() )
{
it->setSelected( false );
it->begin()->setSelected( true );
m_pLastSelected = &*(it->begin());
}
else
{
m_rTree.action( &*it );
}
}
else
{
it->setExpanded( true );
bChangedPosition = true;
}
}
}
else if( key == KEY_LEFT )
{
// Go up one level (and close node)
if( &*it == m_pLastSelected )
{
if( it->isExpanded() && it->size() )
{
it->setExpanded( false );
bChangedPosition = true;
}
else
{
if( it->parent() && it->parent() != &m_rTree)
{
it->setSelected( false );
m_pLastSelected = it->parent();
m_pLastSelected->setSelected( true );
}
}
}
}
else if( key == KEY_ENTER || key == ' ' )
{
// Go up one level (and close node)
if( &*it == m_pLastSelected )
{
m_rTree.action( &*it );
}
}
}
if( needShow )
ensureVisible( toShow );
// Redraw the control
makeImage();
notifyLayout();
}
else
{
// other keys to be forwarded to vlc core
EvtKey& rEvtKey = (EvtKey&)rEvent;
var_SetInteger( getIntf()->p_libvlc, "key-pressed",
rEvtKey.getModKey() );
}
}
else if( rEvent.getAsString().find( "mouse:left" ) != string::npos )
{
EvtMouse &rEvtMouse = (EvtMouse&)rEvent;
const Position *pos = getPosition();
int yPos = ( rEvtMouse.getYPos() - pos->getTop() ) / itemHeight();
int xPos = rEvtMouse.getXPos() - pos->getLeft();
VarTree::Iterator it;
if( rEvent.getAsString().find( "mouse:left:down:ctrl,shift" ) !=
string::npos )
{
VarTree::Iterator itClicked = findItemAtPos( yPos );
// Flag to know if the current item must be selected
bool select = false;
for( it = m_flat ? m_rTree.firstLeaf() : m_rTree.begin();
it != m_rTree.end();
it = m_flat ? m_rTree.getNextLeaf( it )
: m_rTree.getNextVisibleItem( it ) )
{
bool nextSelect = select;
if( it == itClicked || &*it == m_pLastSelected )
{
if( select )
{
nextSelect = false;
}
else
{
select = true;
nextSelect = true;
}
}
it->setSelected( it->isSelected() || select );
select = nextSelect;
}
// Redraw the control
makeImage();
notifyLayout();
}
else if( rEvent.getAsString().find( "mouse:left:down:ctrl" ) !=
string::npos )
{
// Invert the selection of the item
it = findItemAtPos( yPos );
if( it != m_rTree.end() )
{
it->toggleSelected();
m_pLastSelected = &*it;
}
// Redraw the control
makeImage();
notifyLayout();
}
else if( rEvent.getAsString().find( "mouse:left:down:shift" ) !=
string::npos )
{
VarTree::Iterator itClicked = findItemAtPos( yPos );
// Flag to know if the current item must be selected
bool select = false;
for( it = m_flat ? m_rTree.firstLeaf() : m_rTree.begin();
it != m_rTree.end();
it = m_flat ? m_rTree.getNextLeaf( it )
: m_rTree.getNextVisibleItem( it ) )
{
bool nextSelect = select;
if( it == itClicked || &*it == m_pLastSelected )
{
if( select )
{
nextSelect = false;
}
else
{
select = true;
nextSelect = true;
}
}
it->setSelected( select );
select = nextSelect;
}
// Redraw the control
makeImage();
notifyLayout();
}
else if( rEvent.getAsString().find( "mouse:left:down" ) !=
string::npos )
{
it = findItemAtPos(yPos);
if( it != m_rTree.end() )
{
if( ( it->size() && xPos > (it->depth() - 1) * itemImageWidth()
&& xPos < it->depth() * itemImageWidth() )
&& !m_flat )
{
// Fold/unfold the item
it->toggleExpanded();
bChangedPosition = true;
}
else
{
// Unselect any previously selected item
VarTree::Iterator it2;
for( it2 = m_flat ? m_rTree.firstLeaf() : m_rTree.begin();
it2 != m_rTree.end();
it2 = m_flat ? m_rTree.getNextLeaf( it2 )
: m_rTree.getNextVisibleItem( it2 ) )
{
it2->setSelected( false );
}
// Select the new item
if( it != m_rTree.end() )
{
it->setSelected( true );
m_pLastSelected = &*it;
}
}
}
// Redraw the control
makeImage();
notifyLayout();
}
else if( rEvent.getAsString().find( "mouse:left:dblclick" ) !=
string::npos )
{
it = findItemAtPos(yPos);
if( it != m_rTree.end() )
{
// Execute the action associated to this item
m_rTree.action( &*it );
}
// Redraw the control
makeImage();
notifyLayout();
}
}
else if( rEvent.getAsString().find( "scroll" ) != string::npos )
{
// XXX ctrl_slider.cpp has two more (but slightly different)
// XXX implementations of `scroll'. Figure out where it belongs.
int direction = static_cast<EvtScroll&>(rEvent).getDirection();
double percentage = m_rTree.getPositionVar().get();
double step = 2.0 / (double)( m_flat ? m_rTree.countLeafs()
: m_rTree.visibleItems() );
if( direction == EvtScroll::kUp )
{
percentage += step;
}
else
{
percentage -= step;
}
m_rTree.getPositionVar().set( percentage );
}
/* We changed the nodes, let's fix the position var */
if( bChangedPosition )
{
VarTree::Iterator it;
int iFirst = 0;
for( it = m_flat ? m_rTree.firstLeaf() : m_rTree.begin();
it != m_rTree.end();
it = m_flat ? m_rTree.getNextLeaf( it )
: m_rTree.getNextVisibleItem( it ) )
{
if( it == m_firstPos )
break;
iFirst++;
}
int indexMax = ( m_flat ? m_rTree.countLeafs()
: m_rTree.visibleItems() ) - 1;
float f_new = (float)iFirst / (float)indexMax;
m_dontMove = true;
m_rTree.getPositionVar().set( 1.0 - f_new );
m_dontMove = false;
}
}
