6.17 实现大纲视图Outline，并且提供鹰眼功能（eagle eye）

时间：2014-06-18 17:16:25 阅读：268 评论：0 收藏：0 [点我收藏+]

1.创建outline

创建图形模型的 Outline 是通过 getAdapter 实现的，如果类型是 IContentOutlinePage，则返回一个大纲视图页面。因此要创建一个 MyContentOutlinePage 类。注意，这里的MyContentOutlinePage 类不是从 org.eclipse.ui.views.contentoutline.ContentOutlinePage 派生的，而是从 org.eclipse.gef.ui.parts.ContentOutlinePage 派生的。这样，MyContentOutlinePage类中使用的 TreeViewer 也是使用的 GEF 的 Editpart Viewer，所以可以保证大纲视图的内容和 Graphical Editor 的内容同步。

（1）在DiagramEditor中创建一个ContentOutlinePage的内部类，用于显示大纲视图：

 1 class EditorContentOutlinePage extends ContentOutlinePage {
 2         private SashForm sash;//使用 SashForm 把 Outline 视图分为两部分：显示大纲和显示鹰眼

 4         private ScrollableThumbnail thumbnail;
 5         private DisposeListener disposeListener;
 6 
 7         public EditorContentOutlinePage() {
 8             super(new TreeViewer());
 9             // 使用GEF的TreeViewer
10         }
11 
12         @Override
13         public void init(IPageSite pageSite) {
14             // TODO Auto-generated method stub
15             super.init(pageSite);
16 
17             ActionRegistry registry = getActionRegistry();
18             IActionBars bars = pageSite.getActionBars();
19 
20             String id = ActionFactory.UNDO.getId();
21             bars.setGlobalActionHandler(id, registry.getAction(id));
22             id = ActionFactory.REDO.getId();
23             bars.setGlobalActionHandler(id, registry.getAction(id));
24             id = ActionFactory.DELETE.getId();
25             bars.setGlobalActionHandler(id, registry.getAction(id));
26             id = ActionFactory.SAVE.getId();
27             bars.setGlobalActionHandler(id, registry.getAction(id));
28             id = ActionFactory.SAVE_ALL.getId();
29             bars.setGlobalActionHandler(id, registry.getAction(id));
30 
31             bars.updateActionBars();
32         }
33 
34         @Override
35         public void createControl(Composite parent) {
36             // TODO Auto-generated method stub
37 
38             sash = new SashForm(parent, SWT.VERTICAL);
39 
40             getViewer().createControl(sash);
41 
42             getViewer().setEditDomain(getEditDomain());
43             getViewer().setEditPartFactory(new TreePartFactory());
44 
45             getViewer().setContents(diagram);
46             getSelectionSynchronizer().addViewer(getViewer());
47 
48             Canvas canvas = new Canvas(sash, SWT.BORDER);
49             LightweightSystem lws = new LightweightSystem(canvas);
50 
51             thumbnail = new ScrollableThumbnail(
52                     (Viewport) ((ScalableRootEditPart) getGraphicalViewer()
53                             .getRootEditPart()).getFigure());
54             thumbnail.setSource(((ScalableRootEditPart) getGraphicalViewer()
55                     .getRootEditPart())
56                     .getLayer(LayerConstants.PRINTABLE_LAYERS));
57 
58             lws.setContents(thumbnail);
59 
60             disposeListener = new DisposeListener() {
61 
62                 @Override
63                 public void widgetDisposed(DisposeEvent e) {
64                     // TODO Auto-generated method stub
65                     if (thumbnail != null) {
66                         thumbnail.deactivate();
67                         thumbnail = null;
68                     }
69                 }
70 
71             };
72 
73             getGraphicalViewer().getControl().addDisposeListener(
74                     disposeListener);
75         }
76 
77         @Override
78         public Control getControl() {
79             // 当大纲视图是当前（active）视图时，返回聚焦的控件。
80             return sash;
81         }
82 
83         @Override
84         public void dispose() {
85             // TODO Auto-generated method stub
86             getSelectionSynchronizer().removeViewer(getViewer());
87 
88             if (getGraphicalViewer().getControl() != null
89                     && !getGraphicalViewer().getControl().isDisposed()) {
90                 getGraphicalViewer().getControl().removeDisposeListener(
91                         disposeListener);
92 
93             }
94             super.dispose();
95         }
96 
97     }

（2）在Perspective类中加入大纲视图

public class Perspective implements IPerspectiveFactory {

    public void createInitialLayout(IPageLayout layout) {
        final String editorArea=layout.getEditorArea();
        
        IFolderLayout leftTopFolder=layout.createFolder("leftTopOutline", IPageLayout.LEFT, 0.35f, editorArea);
        leftTopFolder.addView(TTCNView.VIEW_PROJECT);
        leftTopFolder.addView(TTCNView.VIEW_EOUTLINE);
        
        
        
        IFolderLayout midBottomFolder=layout.createFolder("BottomProperty", IPageLayout.BOTTOM, 0.35f,editorArea );
        midBottomFolder.addView(TTCNView.VIEW_DPROPERTY);
        midBottomFolder.addView(TTCNView.VIEW_CORELANG);
        midBottomFolder.addView(TTCNView.VIEW_TODOITEM);
        midBottomFolder.addView(IPageLayout.ID_PROBLEM_VIEW);
        
        
        layout.addFastView(TTCNView.VIEW_DEFINE);
        
        layout.setEditorAreaVisible(true);
        }
}

（3）让大纲视图显示当前GraphicalEditor中的图形信息。

 1 public class CustomTreeEditPart extends AbstractTreeEditPart implements
 2         PropertyChangeListener {
 3 
 4     @Override
 5     public void propertyChange(PropertyChangeEvent arg0) {
 6         // TODO Auto-generated method stub
 7 
 8     }
 9 
10     @Override
11     public void activate() {
12         // TODO Auto-generated method stub
13         super.activate();
14         ((AbstractModel) getModel()).addPropertyChangeListener(this);
15     }
16 
17     @Override
18     public void deactivate() {
19         // TODO Auto-generated method stub
20         ((AbstractModel) getModel()).removePropertyChangeListener(this);
21         super.deactivate();
22     }
23     
24     
25 }

（4）对应于某个类如contentsModel，创建相应的类ContentsTreeEditPart。

 1 public class ContainerTreeEditPart extends CustomTreeEditPart {
 2 
 3     @Override
 4     public void propertyChange(PropertyChangeEvent arg0) {
 5         // TODO Auto-generated method stub
 6         if (arg0.getPropertyName().equals(
 7                 ModelStringConstant.P_CONTAINER_CHILDREN_ADD)) {
 8             refreshChildren();
 9         } else if (arg0.getPropertyName().equals(
10                 ModelStringConstant.P_CONTAINER_CHILDREN_REM)) {
11             refreshChildren();
12         }
13     }
14 
15     @Override
16     public List<Object> getModelChildren() {
17         return ((ContainerElementModel) getModel()).getChildren();
18 
19     }
20 
21     @Override
22     protected void refreshVisuals() {
23         // TODO Auto-generated method stub
24         ContainerElementModel model = (ContainerElementModel) getModel();
25         setWidgetText(model.getLabel());
26         setWidgetImage(TreeEditorPartDescriptorFactory.getContainerImage(model));
27     }
28 
29 }

（5）对应于 DiagramModel 类，创建的相应类DiagramTreeEditPart 如下：

 1 public class DiagramTreeEditPart extends CustomTreeEditPart {
 2 
 3     @Override
 4     public void propertyChange(PropertyChangeEvent arg0) {
 5         // TODO Auto-generated method stub
 6 
 7         if (arg0.getPropertyName().equals(
 8                 ModelStringConstant.P_DIAGRAM_PORTS_INC)) {
 9             refreshChildren();
10         } else if (arg0.getPropertyName().equals(
11                 ModelStringConstant.P_DIAGRAM_PORTS_DEC)) {
12             refreshChildren();
13         }
14     }
15 
16     @Override
17     public List<Object> getModelChildren() {
18         // TODO Auto-generated method stub
19         List<Object> list = ((DiagramModel) getModel()).getChildren();
20         List<Object> children = new ArrayList<Object>();
21         Object model;
22         for (int i = 0; i < list.size(); i++) {
23             model = list.get(i);
24             if (model instanceof PortElementModel) {
25                 children.add(model);
26             }
27         }
28 
29         return children;
30     }
31 
32 }

（6）和图形的绘制一样，我们同样要有一个工厂把这些 Tree Editpart 和相应的模型联系起来。

  1 public class TreeEditorPartDescriptorFactory不用继承自EditPartFactory么？ {
  2 
  3 
  4     public static Image getLiteralImage(AbstractModel model) {
  5         if (model instanceof ActionModel) {
  6             return IImageKey.getImage(IImageKey.KEY_ACTION);
  7         }
  8 
  9         else if (model instanceof ConditionModel) {
 10             return IImageKey.getImage(IImageKey.KEY_CONDITION);
 11         }
 12         else if (model instanceof CreateModel) {
 13             return IImageKey.getImage(IImageKey.KEY_CREATE);
 14         }
 15 
 16         else if (model instanceof DefaultModel) {
 17             return IImageKey.getImage(IImageKey.KEY_DEFAULT);
 18         }
 19 
 20         else if (model instanceof EventCommentModel) {
 21             return IImageKey.getImage(IImageKey.KEY_EVENTCOMMENT);
 22         }
 23 
 24         else if (model instanceof ExecuteModel) {
 25             return IImageKey.getImage(IImageKey.KEY_EXECUTE);
 26         }
 27 
 28         else if (model instanceof LabelModel) {
 29             return IImageKey.getImage(IImageKey.KEY_LABEL);
 30         }
 31         
 32         else if (model instanceof GotoModel) {
 33             return IImageKey.getImage(IImageKey.KEY_GOTO);
 34         }
 35 
 36         else if (model instanceof ReferenceModel) {
 37             return IImageKey.getImage(IImageKey.KEY_REFERENCE);
 38         }
 39 
 40         else if (model instanceof StartModel) {
 41             return IImageKey.getImage(IImageKey.KEY_START);
 42         }
 43 
 44         else if (model instanceof TextModel) {
 45             return IImageKey.getImage(IImageKey.KEY_TEXT);
 46         }
 47 
 48         return null;
 49     }
 50 
 51     public static Image getContainerImage(AbstractModel model) {
 52         if (model instanceof ContainerElementModel) {
 53             return IImageKey.getImage(IImageKey.KEY_INLINE);
 54         }
 55         return null;
 56     }
 57 
 58     public static Image getFigureImage(AbstractModel model) {
 59         if (model instanceof StartTimerModel) {
 60             return IImageKey.getImage(IImageKey.KEY_STARTTIMER);
 61         }
 62 
 63         else if (model instanceof StopComponentModel) {
 64             return IImageKey.getImage(IImageKey.KEY_STOP);
 65         }
 66 
 67         else if (model instanceof StopTimerModel) {
 68             return IImageKey.getImage(IImageKey.KEY_STOPTIMER);
 69         }
 70 
 71         else if (model instanceof TimeoutTimerModel) {
 72             return IImageKey.getImage(IImageKey.KEY_TIMEOUTTIMER);
 73         }
 74         
 75         else if (model instanceof StartImplicitTimerModel) {
 76             return IImageKey.getImage(IImageKey.KEY_STARTIMPLICITTIMER);
 77         }
 78         
 79         else if (model instanceof TimeoutImplicitTimerModel) {
 80             return IImageKey.getImage(IImageKey.KEY_TIMEOUTIMPLICITTIMER);
 81         }
 82 
 83         else if (model instanceof StopModel) {
 84             return IImageKey.getImage(IImageKey.KEY_STOP);
 85         }
 86 
 87         else if (model instanceof ReturnModel) {
 88             return IImageKey.getImage(IImageKey.KEY_RETURN);
 89         }
 90         
 91         else if (model instanceof RepeatModel) {
 92             return IImageKey.getImage(IImageKey.KEY_REPEAT);
 93         }
 94         
 95         else if (model instanceof SuspensionRegionModel) {
 96             return IImageKey.getImage(IImageKey.KEY_SUSPENSIONREGION);
 97         }
 98         
 99         else if (model instanceof InstanceEndModel) {
100             return IImageKey.getImage(IImageKey.KEY_INSTANCEEND);
101         }
102 
103 
104         return null;
105     }
106 
107     public static Image getConnectionImage(AbstractModel model) {
108         String id = ((ElementModel)model).getModelID();
109         
110         if (id.equals(ConstantResourceFactory.ID_FOUND_MODEL)
111                 || id.equals(ConstantResourceFactory.ID_FOUNDCHECK_MODEL)){
112             return IImageKey.getImage(IImageKey.KEY_FOUND);
113         }
114         
115         else if(model instanceof MessageFromModel){
116             return IImageKey.getImage(IImageKey.KEY_MESSAGEFROM);
117         }
118         
119         else if(model instanceof MessageToModel){
120             return IImageKey.getImage(IImageKey.KEY_MESSAGETO);
121         }
122         return null;
123     }
124 
125     public static Image getPortImage(AbstractModel model) {
126         if (model instanceof PortInstanceModel) {
127             return IImageKey.getImage(IImageKey.KEY_PORT);
128         }
129         
130         else if (model instanceof ComponentInstanceModel) {
131             return IImageKey.getImage(IImageKey.KEY_COMPONENT);
132         }
133 
134         return null;
135     }
136 
137     
138 }

而教程中的例子是这样的：

 1 public class TreeEditPartFactory implements EditPartFactory {
 2         public EditPart createEditPart(EditPart context, Object model) {
 3             EditPart part=null;
 4             if(model instanceof ContentsModel)
 5                    part=new ContentsTreeEditPart();
 6             else if(model instanceof HelloModel)
 7                    part=new HelloTreeEditPart();
 8             if(part!=null)
 9                    part.setModel(model);
10             return part;
11 }
12 }

（7）我们再回到 DiagramEditor 中把图形绘制在大纲视图中，过程和绘制图形差不多。

 1 class EditorContentOutlinePage extends ContentOutlinePage {
 2         private SashForm sash;
 3 
 4         private ScrollableThumbnail thumbnail;
 5         private DisposeListener disposeListener;
 6 
 7         public EditorContentOutlinePage() {
 8             super(new TreeViewer());
 9             // TODO Auto-generated constructor stub
10         }
11 
12         @Override
13         public void init(IPageSite pageSite) {
14             // TODO Auto-generated method stub
15             super.init(pageSite);
16 
17             ActionRegistry registry = getActionRegistry();
18             IActionBars bars = pageSite.getActionBars();
19 
20             String id = ActionFactory.UNDO.getId();
21             bars.setGlobalActionHandler(id, registry.getAction(id));
22             id = ActionFactory.REDO.getId();
23             bars.setGlobalActionHandler(id, registry.getAction(id));
24             id = ActionFactory.DELETE.getId();
25             bars.setGlobalActionHandler(id, registry.getAction(id));
26             id = ActionFactory.SAVE.getId();
27             bars.setGlobalActionHandler(id, registry.getAction(id));
28             id = ActionFactory.SAVE_ALL.getId();
29             bars.setGlobalActionHandler(id, registry.getAction(id));
30 
31             bars.updateActionBars();
32         }
33 
34         @Override
35         public void createControl(Composite parent) {
36             // TODO Auto-generated method stub
37 
38             sash = new SashForm(parent, SWT.VERTICAL);
39 
40             getViewer().createControl(sash);
41 
42             getViewer().setEditDomain(getEditDomain());
43             getViewer().setEditPartFactory(new TreePartFactory());
44 
45             getViewer().setContents(diagram);
46             getSelectionSynchronizer().addViewer(getViewer());
47 
48             Canvas canvas = new Canvas(sash, SWT.BORDER);
49             LightweightSystem lws = new LightweightSystem(canvas);
50 
51             thumbnail = new ScrollableThumbnail(
52                     (Viewport) ((ScalableRootEditPart) getGraphicalViewer()
53                             .getRootEditPart()).getFigure());
54             thumbnail.setSource(((ScalableRootEditPart) getGraphicalViewer()
55                     .getRootEditPart())
56                     .getLayer(LayerConstants.PRINTABLE_LAYERS));
57 
58             lws.setContents(thumbnail);
59 
60             disposeListener = new DisposeListener() {
61 
62                 @Override
63                 public void widgetDisposed(DisposeEvent e) {
64                     // TODO Auto-generated method stub
65                     if (thumbnail != null) {
66                         thumbnail.deactivate();
67                         thumbnail = null;
68                     }
69                 }
70 
71             };
72 
73             getGraphicalViewer().getControl().addDisposeListener(
74                     disposeListener);
75         }
76 
77         @Override
78         public Control getControl() {
79             // TODO Auto-generated method stub
80             return sash;
81         }

6.17 实现大纲视图Outline，并且提供鹰眼功能（eagle eye）,布布扣,bubuko.com

6.17 实现大纲视图Outline，并且提供鹰眼功能（eagle eye）

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原文地址：http://www.cnblogs.com/liyuhui20093357/p/3791093.html

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