/**
* This file is part of HIDB2.
*
* HIDB2 is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HIDB2 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser Public License
* along with HIDB2. If not, see <http://www.gnu.org/licenses/>.
*/
package hidb2.gui;
import hidb2.gui.action.GeneralOpen;
import hidb2.gui.node.DefaultNode;
import hidb2.kern.FolderDescription;
import hidb2.kern.ListDescription;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.part.DrillDownAdapter;
import org.eclipse.ui.part.ViewPart;
/**
* TreeView of DB structure
*
*/
public class DBStructView extends ViewPart implements DataUpdatable
{
public final static String ID = "hidb2.gui.DBStructView";
private TreeViewer viewer;
private DrillDownAdapter drillDownAdapter;
private GeneralOpen doubleClickAction;
class NameSorter extends ViewerSorter
{
}
/**
* The constructor.
*/
public DBStructView()
{
setTitleToolTip("HIDB2 Workspace");
}
/**
* Method used by the Preference Page to change directories.
*/
public void restart()
{
viewer.setContentProvider(new DBStructViewContentProvider(this));
viewer.refresh();
}
@Override
public void refresh(int subject, Object clientData)
{
DBStructViewContentProvider cntp = (DBStructViewContentProvider) viewer.getContentProvider();
switch (subject)
{
case DATAPATHLIST:
viewer.refresh(cntp.updateDataPath());
break;
case FOLDERDESCRLIST:
viewer.refresh(cntp.updateFolderDescr((FolderDescription) clientData));
break;
case LISTDESCRLIST:
viewer.refresh(cntp.updateListDescr((ListDescription) clientData));
break;
default:
break;
}
}
/**
* This is a callback that will allow us
* to create the viewer and initialize it.
*/
public void createPartControl(Composite parent)
{
viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
drillDownAdapter = new DrillDownAdapter(viewer);
viewer.setContentProvider(new DBStructViewContentProvider(this));
viewer.setLabelProvider(new DBStructViewLabelProvider());
viewer.setSorter(new NameSorter());
viewer.setInput(getViewSite());
makeActions();
hookContextMenu();
hookDoubleClickAction();
contributeToActionBars();
// Add Custom Drawing callbacks
Tree tr = viewer.getTree();
tr.addListener(SWT.MeasureItem, new Listener()
{
public void handleEvent(Event event)
{
((DefaultNode) ((TreeItem) event.item).getData()).mesureItem(event);
}
});
tr.addListener(SWT.EraseItem, new Listener()
{
public void handleEvent(Event event)
{
((DefaultNode) ((TreeItem) event.item).getData()).eraseItem(event);
}
});
tr.addListener(SWT.PaintItem, new Listener()
{
public void handleEvent(Event event)
{
((DefaultNode) ((TreeItem) event.item).getData()).paintItem(event);
}
});
//par defaut on ouvre au niveau 1
viewer.expandToLevel(1);
}
private void hookContextMenu()
{
// File Menu
MenuManager menuMgr = new MenuManager("#PopupMenu", "hidb2.gui.DBStructView.pm");
menuMgr.setRemoveAllWhenShown(true);
menuMgr.addMenuListener(new IMenuListener()
{
public void menuAboutToShow(IMenuManager manager)
{
fillContextMenu(manager);
}
});
Menu menu = menuMgr.createContextMenu(viewer.getControl());
viewer.getControl().setMenu(menu);
getSite().registerContextMenu(menuMgr.getId(), menuMgr, viewer);
}
private void contributeToActionBars()
{
IActionBars bars = getViewSite().getActionBars();
fillLocalPullDown(bars.getMenuManager());
fillLocalToolBar(bars.getToolBarManager());
}
/* (non-Javadoc)
* @see org.eclipse.ui.part.WorkbenchPart#dispose()
*/
@Override
public void dispose()
{
super.dispose();
// Dispose used Fonts
DefaultNode.dispose();
}
private void fillLocalPullDown(IMenuManager manager)
{
// manager.add(openAction);
}
private void fillContextMenu(IMenuManager manager)
{
// manager.add(openAction);
// manager.add(new Separator());
// Other plug-ins can contribute there actions here
manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
manager.add(new Separator());
drillDownAdapter.addNavigationActions(manager);
}
private void fillLocalToolBar(IToolBarManager manager)
{
// manager.add(openAction);
manager.add(new Separator());
drillDownAdapter.addNavigationActions(manager);
}
private void makeActions()
{
doubleClickAction = new GeneralOpen();
}
private void hookDoubleClickAction()
{
viewer.addSelectionChangedListener(new ISelectionChangedListener()
{
@Override
public void selectionChanged(SelectionChangedEvent event)
{
doubleClickAction.selectionChanged(null, event.getSelection());
}
});
viewer.addDoubleClickListener(new IDoubleClickListener()
{
public void doubleClick(DoubleClickEvent event)
{
doubleClickAction.run(null);
}
});
}
/**
* Passing the focus request to the viewer's control.
*/
public void setFocus()
{
viewer.getControl().setFocus();
}
public TreeViewer getTree()
{
return viewer;
}
}