CMSSW Reference Manual

IgQtTreeBrowser::IgQtTreeBrowser	(	IgState *	state,
		IgSite *	site
	)

Definition at line 34 of file IgQtTreeBrowser.cc.

References ASSERT, HLT_VtxMuL3::connect, contextMenu(), lat::CreateCallback(), DBSPlugin::get(), header, IgQtSite::host(), m_state, onSelectionChange(), selectMessage(), and slotItemChanged().

00036     : QListView (IgQtSite::hostFrom (site)),
00037       m_state (state),
00038       m_discardRelease (false)
00039 {
00040     ASSERT (IgSelectionService::get (m_state));
00041     ASSERT (IgQtObjectMenuService::get (m_state));
00042     IgQtSite::host (site, this);
00043     IgSelectionService::get (m_state)
00044         ->add (lat::CreateCallback (this, &IgQtTreeBrowser::selectMessage));
00045 
00046     //header ()->setResizeEnabled (false);
00047     header ()->setMovingEnabled (false);
00048 
00049     // FIXME: enable sorting, but default to off!
00050     setSorting (-1, false);
00051 
00052     addColumn ("Object", visibleWidth () - 20);
00053     setVScrollBarMode (QScrollView::AlwaysOn);
00054     resize (200, height ());
00055     
00056     // addColumn ("Type");
00057     setRootIsDecorated (true);
00058     setMultiSelection (false);
00059     connect (this,SIGNAL(selectionChanged()), this,SLOT(onSelectionChange()));
00060     connect (this,SIGNAL(selectionChanged()), this,SLOT(slotItemChanged()));
00061     connect (this,SIGNAL(contextMenuRequested(QListViewItem *,
00062                                               const QPoint &, int)),
00063              this,SLOT(contextMenu(QListViewItem *, const QPoint &, int)));
00064 
00065     this->header ()->hide ();
00066     show ();
00067 }

IgQtTreeBrowser::~IgQtTreeBrowser ( void )

Definition at line 69 of file IgQtTreeBrowser.cc.

References lat::CreateCallback(), DBSPlugin::get(), m_state, and selectMessage().

00070 {
00071     IgSelectionService::get (m_state)
00072         ->remove (lat::CreateCallback (this, &IgQtTreeBrowser::selectMessage));
00073 }

IgQtTreeBrowser::IgQtTreeBrowser ( const IgQtTreeBrowser & ) [private]

void IgQtTreeBrowser::browse ( IgRepresentable * object ) [virtual]

Begin browsing the object.

The implementation must represent object in all its models. object (its representation, that is) may then be made the current selection of this and all other browsers in the same IgSession as this browser. This last step should be implemented by broadcasting a IgSelectMessage on the session IgSelectionService; the browser itself can simply respond to the message as it is delivered to it.

Note:: The browser has to create a model and a rep of the object; even simple dummy ones will do. These can be discarded once the other browsers have been notified of the selection change.

See also:: See the class documentation for a more complete description.

Parameters:

object The object to visualise. Even though the object is not const, the browser should not assume it can change it. All non-editor browsers should treat the object purely as const. Editors should treat the object as const as long as possible, preferably until the user explicitly requests the object to be changed. Thus, editors should make changes only to the representation until it is clear that the user is committed to making the changes to the object, too.

Implements IgBrowser.

Definition at line 77 of file IgQtTreeBrowser.cc.

References IgRepSet::lookup().

00078 {
00079     // FIXME: This was stateless, no rep created, need to change that.
00080     // FIXME: broadcast selection message
00081     /* IgRepContext *context =*/ IgRepSet::lookup (object, this, true);
00082     // FIXME: model change event?
00083     // FIXME: select?
00084     // if (context)
00085     //     IgSelectionService::get (m_state)
00086     //          ->broadcast (IgSelectionMessage (context));
00087 }

const char * IgQtTreeBrowser::catalogLabel ( void ) [static]

Definition at line 31 of file IgQtTreeBrowser.cc.

00032 { return "Tree"; }

void IgQtTreeBrowser::contentsMouseDoubleClickEvent ( QMouseEvent * e ) [protected, virtual]

Definition at line 155 of file IgQtTreeBrowser.cc.

References ASSERT, and IgQtTreeRep::magic().

00156 {
00157     ASSERT (event);
00158 
00159     QPoint              pos = contentsToViewport (event->pos ());
00160     QListViewItem       *item = itemAt (pos);
00161     IgQtTreeRep         *rep = static_cast<IgQtTreeRep *> (item);
00162 
00163     ASSERT (!item || dynamic_cast<IgQtTreeRep *> (item));
00164 
00165     if (rep && rep->magic ())
00166         // Prevent the item from opening on double click
00167         /* emit */ doubleClicked (rep);
00168     else
00169         QListView::contentsMouseDoubleClickEvent (event);
00170 }

void IgQtTreeBrowser::contentsMousePressEvent ( QMouseEvent * e ) [protected, virtual]

Definition at line 173 of file IgQtTreeBrowser.cc.

References ASSERT, and m_discardRelease.

00174 {
00175     ASSERT (event);
00176 
00177     m_discardRelease = false;
00178     QListView::contentsMousePressEvent (event);
00179 }

void IgQtTreeBrowser::contentsMouseReleaseEvent ( QMouseEvent * e ) [protected, virtual]

Definition at line 182 of file IgQtTreeBrowser.cc.

References m_discardRelease.

00183 {
00184     if (m_discardRelease)
00185         m_discardRelease = false;
00186     else
00187         QListView::contentsMouseReleaseEvent (event);
00188 }

void IgQtTreeBrowser::contextMenu	(	QListViewItem *	item,
		const QPoint &	pos,
		int	col
	)			`[virtual, slot]`

Definition at line 192 of file IgQtTreeBrowser.cc.

References ASSERT, python::TagTree::context, DBSPlugin::get(), m_state, IgQtObjectMenuService::postUpdate(), IgQtObjectMenuService::request(), and python::TagTree::svc.

Referenced by IgQtTreeBrowser().

00193 {
00194     ASSERT (!item || dynamic_cast<IgQtTreeRep *> (item));
00195     if (! item)
00196         return;
00197 
00198     IgQtObjectMenuService *svc = IgQtObjectMenuService::get (m_state);
00199     IgRepresentable       *object = static_cast<IgQtTreeRep *> (item)
00200                                     ->context ()->object ();
00201 
00202     // Pop up the menu and update it in case it was torn off.
00203     svc->request (object)->exec (pos);
00204     svc->postUpdate (object);
00205 }

QListViewItem * IgQtTreeBrowser::getNextItem ( QListViewItem * item ) [private]

Replacement for AdvListViewItemIterator.

Definition at line 223 of file IgQtTreeBrowser.cc.

References getNextUpItem().

Referenced by getSelectedItems().

00224 {
00225     if (QListViewItem *next = item->firstChild ())
00226         return next;
00227     else if ((next = item->nextSibling ()))
00228         return next;
00229     else
00230         return getNextUpItem (item);
00231 }

QListViewItem * IgQtTreeBrowser::getNextUpItem ( QListViewItem * item ) [private]

Replacement for AdvListViewItemIterator.

Definition at line 210 of file IgQtTreeBrowser.cc.

References dbtoconf::parent.

Referenced by getNextItem().

00211 {
00212     if (QListViewItem *parent = item->parent ())
00213         if (QListViewItem *next = parent->nextSibling ())
00214             return next;
00215         else
00216             return getNextUpItem (parent);
00217 
00218     return 0;
00219 }

QList< IgQtTreeRep > * IgQtTreeBrowser::getSelectedItems ( void ) [private]

Walk the tree to find the reps that are selected.

Definition at line 235 of file IgQtTreeBrowser.cc.

References ASSERT, and getNextItem().

Referenced by onSelectionChange(), and select().

00236 {
00237     QList<IgQtTreeRep> *selected = new QList<IgQtTreeRep>;
00238     selected->setAutoDelete (false);
00239 
00240     for (QListViewItem *item = firstChild (); item; item = getNextItem (item))
00241         if (item->isSelected ())
00242         {
00243             ASSERT (dynamic_cast<IgQtTreeRep *> (item));
00244             IgQtTreeRep *rep = static_cast<IgQtTreeRep *> (item);
00245             selected->append (rep);
00246         }
00247 
00248     return selected;
00249 }

void IgQtTreeBrowser::onSelectionChange ( void ) [virtual, slot]

Register changes in the selection list and broadcasts it on the bus.

Definition at line 129 of file IgQtTreeBrowser.cc.

References DBSPlugin::get(), getSelectedItems(), and m_state.

Referenced by IgQtTreeBrowser().

00130 {
00131     // FIXME: broadcast a single message for multiple / single selection?
00132     QList<IgQtTreeRep> *selected = getSelectedItems ();
00133     for (IgQtTreeRep *rep = selected->first (); rep; rep = selected->next ())
00134         IgSelectionService::get (m_state)
00135             ->broadcast (IgSelectionMessage (rep->context ()));
00136 }

IgQtTreeBrowser& IgQtTreeBrowser::operator= ( const IgQtTreeBrowser & ) [private]

void IgQtTreeBrowser::resizeEvent ( QResizeEvent * e ) [protected, virtual]

Definition at line 139 of file IgQtTreeBrowser.cc.

References diff, and i.

00140 {
00141     QListView::resizeEvent (event);
00142   
00143     int diff = event->size().width () - event->oldSize().width ();
00144     if (diff != 0)
00145     {
00146         diff = 0;
00147         for (int i = 1; i < columns (); i++)
00148             diff += columnWidth (i);
00149         setColumnWidth (0, visibleWidth () - diff);
00150         updateContents ();
00151     }
00152 }

void IgQtTreeBrowser::select ( IgQtTreeRep * rep ) [virtual]

Definition at line 90 of file IgQtTreeBrowser.cc.

References getSelectedItems().

Referenced by selectMessage().

00091 {
00092     // FIXME: protect against looping from signals?
00093     if (! rep)
00094     {
00095         QList<IgQtTreeRep> *selected = getSelectedItems ();
00096         for (IgQtTreeRep *rep = selected->first(); rep; rep = selected->next())
00097             setSelected (rep, false);
00098         delete selected;
00099     }
00100     else
00101     {
00102         // Select the item and make sure it is cascaded out and visible
00103         for (QListViewItem *item = rep->parent (); item; item = item->parent())
00104             if (! item->isOpen ())
00105                 item->setOpen (true);
00106 
00107         if (! isSelected (rep))
00108             setSelected (rep, true);
00109 
00110         ensureItemVisible (rep);
00111     }
00112 }

void IgQtTreeBrowser::selectMessage ( IgSelectionMessage message ) [protected, virtual]

Definition at line 116 of file IgQtTreeBrowser.cc.

References IgSelectionMessage::context(), IgRepSet::lookup(), and select().

Referenced by IgQtTreeBrowser(), and ~IgQtTreeBrowser().

00117 {
00118     // FIXME: avoid re-emitting the signal?
00119     if (! message.context ())
00120         select (0);
00121     else if (IgQtTreeRep *rep = dynamic_cast<IgQtTreeRep *>
00122              (IgRepSet::lookup (message.context (), this, true)))
00123         // FIXME: update display
00124         select (rep);
00125 }

void IgQtTreeBrowser::slotItemChanged ( void ) [virtual, slot]

Definition at line 253 of file IgQtTreeBrowser.cc.

Referenced by IgQtTreeBrowser().

00254 {
00255     // LOG(..., "slot item changed" << std::endl);
00256 }

void IgQtTreeBrowser::slotItemRMClicked ( void ) [virtual, slot]

Definition at line 259 of file IgQtTreeBrowser.cc.

00260 {
00261     // LOG(..., "slot item right mouse clicked" << std::endl);
00262 }

bool IgQtTreeBrowser::m_discardRelease [private]

Definition at line 72 of file IgQtTreeBrowser.h.

Referenced by contentsMousePressEvent(), and contentsMouseReleaseEvent().

IgState* IgQtTreeBrowser::m_state [private]

Definition at line 71 of file IgQtTreeBrowser.h.

Referenced by contextMenu(), IgQtTreeBrowser(), onSelectionChange(), and ~IgQtTreeBrowser().


Public Slots
virtual void	contextMenu (QListViewItem *item, const QPoint &pos, int col)
virtual void	onSelectionChange (void)
	Register changes in the selection list and broadcasts it on the bus.
virtual void	slotItemChanged (void)
virtual void	slotItemRMClicked (void)
Public Member Functions
virtual void	browse (IgRepresentable *object)
	Begin browsing the object.
	IgQtTreeBrowser (IgState state, IgSite site)
virtual void	select (IgQtTreeRep *rep)
	~IgQtTreeBrowser (void)
Static Public Member Functions
static const char *	catalogLabel (void)
Protected Member Functions
virtual void	contentsMouseDoubleClickEvent (QMouseEvent *e)
virtual void	contentsMousePressEvent (QMouseEvent *e)
virtual void	contentsMouseReleaseEvent (QMouseEvent *e)
virtual void	resizeEvent (QResizeEvent *e)
virtual void	selectMessage (IgSelectionMessage message)
Private Member Functions
QListViewItem *	getNextItem (QListViewItem *item)
	Replacement for AdvListViewItemIterator.
QListViewItem *	getNextUpItem (QListViewItem *item)
	Replacement for AdvListViewItemIterator.
QList< IgQtTreeRep > *	getSelectedItems (void)
	Walk the tree to find the reps that are selected.
	IgQtTreeBrowser (const IgQtTreeBrowser &)
IgQtTreeBrowser &	operator= (const IgQtTreeBrowser &)
Private Attributes
bool	m_discardRelease
IgState *	m_state

IgQtTreeBrowser Class Reference

Public Slots

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation