给自定义Dialog加入保留对话框值的功能

public void saveState(){
        if (text.getText() == null || text.getText().equals("")){
            return ;
        }
        IDialogSettings topSettings = getTopSettings();
        IDialogSettings settings =  topSettings.getSection("TestDialog");
        if(settings == null)settings = topSettings.addNewSection("TestDialog");
        settings.put("value", text.getText());
        try{
            topSettings.save("content/system.xml");
        }catch(IOException e){
            System.out.println(e.getMessage());
        }
    }
    public void restoreState(){
        IDialogSettings topSettings = getTopSettings();
        IDialogSettings settings =  topSettings.getSection("TestDialog");
        if(settings == null) return;
        if (text.getText() == null || text.getText().equals("")){
            text.setText(settings.get("value"));
        }
    }
    public IDialogSettings getTopSettings(){
        IDialogSettings topSettings = new DialogSettings("system");
        try{
            topSettings.load("content/system.xml");
        }catch(IOException e){
            System.out.println(e.getMessage());
        }
        return topSettings;
    }

protected void buttonPressed(int button){
        saveState();
    }

protected Control createDialogArea(Composite parent) {
        Composite container = (Composite) super.createDialogArea(parent);
        container.setLayout(new RowLayout());
        text = new Text(container, SWT.BORDER);
        text.setLayoutData(new RowData(100,-1));
        //加入这一句
        if (text.getText() == null || text.getText().equals("")){
            restoreState();
        }
        return container;
    }

SourceCODE

本文转自kenty博客园博客，原文链接http://www.cnblogs.com/kentyshang/archive/2007/08/16/858307.html如需转载请自行联系原作者

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