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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Eclipse Public License, Version 1.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.eclipse.org/org/documents/epl-v10.php
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.ide.eclipse.adt.internal.editors.layout.parts;
     18 
     19 import com.android.ide.eclipse.adt.internal.editors.uimodel.UiDocumentNode;
     20 import com.android.ide.eclipse.adt.internal.editors.uimodel.UiElementNode;
     21 
     22 import org.eclipse.gef.EditPart;
     23 import org.eclipse.gef.EditPartFactory;
     24 import org.eclipse.swt.widgets.Display;
     25 
     26 /**
     27  * A factory that returns the appropriate {@link EditPart} for a given model object.
     28  * <p/>
     29  * The only model objects we use are {@link UiElementNode} objects and they are
     30  * edited using {@link UiElementEditPart}.
     31  *
     32  * @since GLE1
     33  */
     34 public class UiElementsEditPartFactory implements EditPartFactory {
     35 
     36     private Display mDisplay;
     37     private boolean mShowOutline = false;
     38     private IOutlineProvider mProvider;
     39 
     40     public interface IOutlineProvider {
     41         boolean hasOutline();
     42     }
     43 
     44     public UiElementsEditPartFactory(Display display, IOutlineProvider provider) {
     45         mDisplay = display;
     46         mProvider = provider;
     47     }
     48 
     49     public EditPart createEditPart(EditPart context, Object model) {
     50         if (model instanceof UiDocumentNode) {
     51             return new UiDocumentEditPart((UiDocumentNode) model, mDisplay);
     52         } else if (model instanceof UiElementNode) {
     53             UiElementNode node = (UiElementNode) model;
     54 
     55             if (node.getDescriptor().hasChildren()) {
     56                 return new UiLayoutEditPart(node, mProvider);
     57             }
     58 
     59             return new UiViewEditPart(node);
     60         }
     61         return null;
     62     }
     63 
     64     public void setShowOutline(boolean showOutline) {
     65         mShowOutline  = showOutline;
     66     }
     67 
     68 }
     69