Package org.gudy.azureus2.ui.swt.views.table.impl

Source Code of org.gudy.azureus2.ui.swt.views.table.impl.TableOrTreeUtils

/**
* Created on May 3, 2010
*
* Copyright 2008 Vuze, Inc.  All rights reserved.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License only.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
*/

package org.gudy.azureus2.ui.swt.views.table.impl;

import java.util.HashMap;
import java.util.Map;

import org.eclipse.swt.custom.ControlEditor;
import org.eclipse.swt.custom.TableEditor;
import org.eclipse.swt.custom.TreeEditor;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.widgets.*;

import org.gudy.azureus2.core3.util.Debug;
import org.gudy.azureus2.ui.swt.views.table.TableColumnOrTreeColumn;
import org.gudy.azureus2.ui.swt.views.table.TableItemOrTreeItem;
import org.gudy.azureus2.ui.swt.views.table.TableOrTreeSWT;

/**
* @author TuxPaper
* @created May 3, 2010
*
*/
public class TableOrTreeUtils
{
  private static Map<Object, Object> mapDelegates = new HashMap<Object, Object>();

  public static TableItemOrTreeItem getEventItem(Widget item) {
    synchronized (mapDelegates) {
      Object object = mapDelegates.get(item);
      if (object instanceof TableItemOrTreeItem) {
        return (TableItemOrTreeItem) object;
      }
    }

    TableItemOrTreeItem delegate = null;
    synchronized (mapDelegates) {
      if (item instanceof TreeItem) {
        delegate = new TreeItemDelegate((TreeItem) item);
        mapDelegates.put(item, delegate);
      } else if (item instanceof TableItem) {
        delegate = new TableItemDelegate((TableItem) item);
        mapDelegates.put(item, delegate);
      }
    }

    if (delegate != null) {
      delegate.addDisposeListener(new DisposeListener() {
        public void widgetDisposed(DisposeEvent e) {
          synchronized (mapDelegates) {
            mapDelegates.remove(e.widget);
          }
        }
      });
    }
    return delegate;
  }

  public static TableOrTreeSWT getTableOrTreeSWT(Widget widget) {
    synchronized (mapDelegates) {
      Object object = mapDelegates.get(widget);
      if (object instanceof TableOrTreeSWT) {
        return (TableOrTreeSWT) object;
      }
    }

    TableOrTreeSWT delegate = null;
    synchronized (mapDelegates) {
      if (widget instanceof Tree) {
        delegate = new TreeDelegate((Tree) widget);
        mapDelegates.put(widget, delegate);
      } else if (widget instanceof Table) {
        delegate = new TableDelegate((Table) widget);
        mapDelegates.put(widget, delegate);
      }
    }

    if (delegate != null) {
      delegate.addDisposeListener(new DisposeListener() {
        public void widgetDisposed(DisposeEvent e) {
          synchronized (mapDelegates) {
            mapDelegates.remove(e.widget);
          }
        }
      });
    }
    return delegate;
  }

  public static TableItemOrTreeItem createNewItem(TableOrTreeSWT parent,
      int style) {
    TableItemOrTreeItem delegate = null;
    synchronized (mapDelegates) {
      if (parent instanceof TreeDelegate) {
        delegate = new TreeItemDelegate(parent, style);
        mapDelegates.put(((TreeItemDelegate) delegate).item, delegate);
      } else if (parent instanceof TableDelegate) {
        delegate = new TableItemDelegate((TableDelegate) parent, style);
        mapDelegates.put(((TableItemDelegate)delegate).item, delegate);
      }
    }

    if (delegate != null) {
      delegate.addDisposeListener(new DisposeListener() {
        public void widgetDisposed(DisposeEvent e) {
          synchronized (mapDelegates) {
            mapDelegates.remove(e.widget);
          }
        }
      });
    }
    return delegate;
  }

  public static TableColumnOrTreeColumn getTableColumnEventItem(Widget item) {
    if (item instanceof TreeColumn) {
      return new TreeColumnDelegate((TreeColumn) item);
    }
    if (item instanceof TableColumn) {
      return new TableColumnDelegate((TableColumn) item);
    }
    return null;
  }

  public static TableOrTreeSWT createGrid(Composite parent, int style,
      boolean tree) {
    TableOrTreeSWT delegate = null;
    synchronized (mapDelegates) {
      if (tree) {
        try {
          delegate = new TreeDelegate(parent, style);
          mapDelegates.put(((TreeDelegate) delegate).getComposite(), delegate);
        } catch (Exception e) {
          Debug.out(e);
        }
      } else {
        delegate = new TableDelegate(parent, style);
        mapDelegates.put(((TableDelegate)delegate).getComposite(), delegate);
      }
    }

    if (delegate != null) {
      delegate.addDisposeListener(new DisposeListener() {
        public void widgetDisposed(DisposeEvent e) {
          synchronized (mapDelegates) {
            mapDelegates.remove(e.widget);
          }
        }
      });
    }
    return delegate;
  }

  public static ControlEditor createTableOrTreeEditor(TableOrTreeSWT tableOrTree) {
    return (tableOrTree instanceof TreeDelegate) ? new TreeEditor(
        (Tree) tableOrTree.getComposite()) : new TableEditor(
        (Table) tableOrTree.getComposite());
  }

  /**
   * @since 4.4.0.5
   */
  public static void setEditorItem(ControlEditor editor, Control input,
      int column, TableItemOrTreeItem item) {
    if (item instanceof TreeItemDelegate) {
      ((TreeEditor) editor).setEditor(input, (TreeItem) item.getItem(), column);
    } else {
      ((TableEditor) editor).setEditor(input, (TableItem) item.getItem(),
          column);
    }
  }

}
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