shapeseditor.java

来自「mywork是rcp开发的很好的例子」· Java 代码 · 共 407 行 · 第 1/2 页

				new AlignmentAction((IWorkbenchPart)this,PositionConstants.RIGHT),
				new AlignmentAction((IWorkbenchPart)this,PositionConstants.TOP),
				new AlignmentAction((IWorkbenchPart)this,PositionConstants.MIDDLE),
				new AlignmentAction((IWorkbenchPart)this,PositionConstants.BOTTOM),
				new MatchWidthAction((IWorkbenchPart)this),
				new MatchHeightAction((IWorkbenchPart)this),
				new ChangePropertiesAction((IWorkbenchPart)this),	//查看编辑属性
				new ExpandAction((IWorkbenchPart)this),	//mm展开/折叠节点
				new ChangeConnectionStyleAction((IWorkbenchPart)this),	//更换连线样式
				new SelectSameAction((IWorkbenchPart)this),	//更换连线样式
				new ChangeLayoutAction((IWorkbenchPart)this,FreeNoteConstants.LAYOUT_NORMAL),	//mm样式
				new ChangeLayoutAction((IWorkbenchPart)this,FreeNoteConstants.LAYOUT_HANGING),	//mm样式
				new ChangeLayoutAction((IWorkbenchPart)this,FreeNoteConstants.LAYOUT_STAR)	//mm样式
		};
		for (IAction a : actions) {
			ar.registerAction(a);
			getSelectionActions().add(a.getId());
		}
		//其他action
		ar.registerAction(new SaveAsAction(this.getSite().getWorkbenchWindow()));
		ar.registerAction(new SaveAllAction(this.getSite().getWorkbenchWindow()));
		ar.registerAction(new ExportShapeAction(this.getSite().getWorkbenchWindow()));
		ar.registerAction(new ChangeZoomLevelAction(this.getSite().getPage()));
	}

	// 绑定键盘快捷键
	protected KeyHandler getCommonKeyHandler() {
		if (sharedKeyHandler == null) {
			sharedKeyHandler = new KeyHandler();
			ActionRegistry ar = getActionRegistry();
			sharedKeyHandler.put(KeyStroke.getPressed(SWT.F2, 0), ar.getAction(GEFActionConstants.DIRECT_EDIT));
			//19为^S，115为小写字母s，keystroke的实现还要进一步了解，TODO:不知道ctrl+a被哪一层截取了
			sharedKeyHandler.put(KeyStroke.getPressed((char)01,(int)'a',SWT.CTRL), ar.getAction(ActionFactory.SELECT_ALL.getId()));
			sharedKeyHandler.put(KeyStroke.getPressed((char)19,(int)'s',SWT.CTRL), ar.getAction(ActionFactory.SAVE.getId()));
			sharedKeyHandler.put(KeyStroke.getPressed((char)127,127,0), ar.getAction(ActionFactory.DELETE.getId()));
			sharedKeyHandler.put(KeyStroke.getPressed((char)26,(int)'z',SWT.CTRL), ar.getAction(ActionFactory.UNDO.getId()));
			sharedKeyHandler.put(KeyStroke.getPressed((char)25,(int)'y',SWT.CTRL), ar.getAction(ActionFactory.REDO.getId()));
			sharedKeyHandler.put(KeyStroke.getPressed((char)16,(int)'p',SWT.CTRL), ar.getAction(FreeNoteConstants.PROPERTY_EDITOR));
		}
		return sharedKeyHandler;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#commandStackChanged(java.util.EventObject)
	 */
	public void commandStackChanged(EventObject event) {
		firePropertyChange(IEditorPart.PROP_DIRTY);
		super.commandStackChanged(event);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.gef.ui.parts.GraphicalEditorWithFlyoutPalette#createPaletteViewerProvider()
	 */
	protected PaletteViewerProvider createPaletteViewerProvider() {
		return new PaletteViewerProvider(getEditDomain()) {
			protected void configurePaletteViewer(PaletteViewer viewer) {
				super.configurePaletteViewer(viewer);
				viewer.addDragSourceListener(new TemplateTransferDragSourceListener(viewer));
			}
		};
	}

	/**
	 * Create a transfer drop target listener. When using a
	 * CombinedTemplateCreationEntry tool in the palette, this will enable model
	 * element creation by dragging from the palette.
	 * 
	 * @see #createPaletteViewerProvider()
	 */
	private TransferDropTargetListener createTransferDropTargetListener() {
		return new TemplateTransferDropTargetListener(getGraphicalViewer()) {
			protected CreationFactory getFactory(Object template) {
				return new SimpleFactory((Class) template);
			}
		};
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.ISaveablePart#doSave(org.eclipse.core.runtime.IProgressMonitor)
	 */
	public void doSave(IProgressMonitor monitor) {
		//如果未设置文件名，则视同另存
		if(getEditorInput() instanceof NullEditorInput){
			doSaveAs();
		}else{
			File file = ((IPathEditorInput) getEditorInput()).getPath().toFile();
			writeContent(file);
		}
	}
	
	private String openFileDialog() {
		FileDialog fd=new FileDialog(getSite().getShell(),SWT.SAVE);
		fd.setText("请输入一个文件名");
		fd.setFilterExtensions(new String[]{"*.fn"});
		return fd.open();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.ISaveablePart#doSaveAs()
	 */
	public void doSaveAs() {
		String path=openFileDialog();
		if(path !=null){
			if(!path.toLowerCase().endsWith(".fn"))path += ".fn";
			File file = new File(path);
			if(! file.exists() || MessageDialog.openConfirm(this.getSite().getShell(), "文件覆盖确认","文件已经存在，是否覆盖?")){
				writeContent(file);
				setInput(new PathEditorInput(new Path(path)));
				OpenShapeAction.addToMRU(path);
			}
		}
	}
	
	public Object getAdapter(Class type){
		if(type == ZoomManager.class)
			return getGraphicalViewer().getProperty(ZoomManager.class.toString());
		return super.getAdapter(type);
	}
	ShapesDiagram getModel() {
		return diagram;
	}

	protected PaletteRoot getPaletteRoot() {
		if (PALETTE_MODEL == null)
			PALETTE_MODEL = ShapesEditorPaletteFactory.createPalette();
		return PALETTE_MODEL;
	}

	private void handleLoadException(Exception e) {
		System.err.println("** Load failed. Using default model. **");
		diagram = new ShapesDiagram();
	}

	protected void initializeGraphicalViewer() {
		super.initializeGraphicalViewer();
		GraphicalViewer viewer = getGraphicalViewer();
		viewer.setContents(getModel()); // set the contents of this editor

		// listen for dropped parts
		viewer.addDropTargetListener(createTransferDropTargetListener());
	}

	@Override
	public GraphicalViewer getGraphicalViewer() {
		return super.getGraphicalViewer();
	}

	public boolean isSaveAsAllowed() {
		return true;
	}
	
	//写文件
	private void writeContent(File file){
		try {
			FileOutputStream fos = new FileOutputStream(file);
//			ObjectOutputStream oos = new ObjectOutputStream(fos);
//			oos.writeObject(getModel());
//			oos.close();
			xstream.toXML(getModel(), fos);
			fos.close();
			getCommandStack().markSaveLocation();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	//读文件
	protected void setInput(IEditorInput input) {
		super.setInput(input);
		//处理示例
		try {
			if(input instanceof NullEditorInput && StringUtil.isNotNull(((NullEditorInput)input).getToolTipText())){
				String path=((NullEditorInput)input).getToolTipText();
				URL url=FileLocator.find(ShapesPlugin.getDefault().getBundle(), new Path(path),null);
				InputStream in = url.openStream();
				diagram= (ShapesDiagram) xstream.fromXML(in);
				in.close();
			}else{
				File file = ((IPathEditorInput) input).getPath().toFile();
				FileInputStream fis = new FileInputStream(file);
//				ObjectInputStream in = new ObjectInputStream(fis);
//				diagram = (ShapesDiagram) in.readObject();
//				in.close();
				diagram= (ShapesDiagram) xstream.fromXML(fis);
				fis.close();
				setPartName(file.getName());
			}
		} catch (Exception e) {
			handleLoadException(e);
		}
	}

	public IAction getAction(String id) {
		return getActionRegistry().getAction(id);
	}
}