为什么我在eclipse插件中看不到SWT / JFace TitleAreaDialog中的更改？(Why can't I see Changes in SWT / JFace TitleAreaDialog in my eclipse plugin?)

 我正在开发一个eclipse插件（不是RCP），我正在使用Jface和SWT来创建它的用户界面。 事实是，我已经下载了WindowBuilder插件，以便开发用户界面，并创建了一个自定义的TitleAreaDialog。 
 
 到目前为止，一切都很顺利，我可以在WindowBuilder中看到以下TitleAreaDialog（上图），当我尝试运行eclipse插件时，问题就出现了。 树的左侧元素消失了： 
 
 WindowBuilder（顶部）和插件执行（底部） 
 
 有人知道发生了什么吗？ 我必须添加一些东西到plugin.xml或MANIFEST.MF吗？ 
 
 谢谢。 
 
 编辑：在zip中你会发现plugin.xml，MANIFEST.XML，build.properties，Handler和gui，称为PlugiGUI。 如果您有任何问题请问我。 
 
 谢谢。 
 
 你可以在这里下载代码。 
 
 编辑2：部分MANIFEST.MF代码如下 
 
Bundle-SymbolicName: org.eclipse.plugin.arturito;singleton:=true
Require-Bundle: org.eclipse.ui,
 org.eclipse.core.runtime
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Bundle-ActivationPolicy: lazy
Bundle-ClassPath: .,
 swing2swt.jar
 
 TitleAreaDialog代码的一部分如下： 
 
/**
* Create contents of the dialog.
* @param parent
*/
@Override
protected Control createDialogArea(Composite parent) {
    //TITLE AND IMAGE OF TitleDialog
                ...

    //Composite        
    Composite area = (Composite) super.createDialogArea(parent);
    Composite container = new Composite(area, SWT.NONE);
    container.setLayout(new FillLayout(SWT.HORIZONTAL));
    container.setLayoutData(new GridData(GridData.FILL_BOTH));

    //Creates the division
    SashForm sashForm = new SashForm(container, SWT.NONE);


    //Right division
    Group rightGroup = new Group(sashForm, SWT.NONE);
    rightGroup.setLayout(new StackLayout());

    //Create the tree
    Tree tree = new Tree(rightGroup, SWT.BORDER);
    tree.setLinesVisible(true);
    tree.setToolTipText("");
    tree.setHeaderVisible(true);

    //Create tree elements
    TreeItem pluginProperties = new TreeItem(tree, SWT.NONE);
    pluginProperties.setText("Plugin properties");
    pluginProperties.setImage(ResourceManager.getPluginImage("org.eclipse.plugin.arturito", "icons/arturitoProperties.png"));


    TreeItem createPluginProperties = new TreeItem(pluginProperties, SWT.NONE);
    createPluginProperties.setText("Create");
    createPluginProperties.setImage(ResourceManager.getPluginImage("org.eclipse.plugin.arturito", "icons/arturitoPlus.png"));
    TreeItem editPluginProperties = new TreeItem(pluginProperties, SWT.NONE);
    editPluginProperties.setText("Edit/Delete");
    editPluginProperties.setImage(ResourceManager.getPluginImage("org.eclipse.plugin.arturito", "icons/arturitoRemoveEdit.png"));
    pluginProperties.setExpanded(true);

    //MORE TREE ELEMENTS WITH SAME PATTERN
    ..............

    //Left division
    Group leftGroup = new Group(sashForm, SWT.NONE);
    leftGroup.setLayout(new StackLayout());

    Composite projectConfigDescriptor = new Composite(leftGroup, SWT.NONE);

   //Proportion of sashForm
    sashForm.setWeights(new int[] {220, 469});
    return area;
}
 
 为什么WindowBuilder会像我想要的那样显示TitleDialog而我的插件不是？ 

I am developing an eclipse plugin (not RCP) and I am using Jface and SWT to create it´s user interface. The fact is that I have downloaded the WindowBuilder plugin to make it easier to develop the user interface and I have created a custom TitleAreaDialog.
 
Up to this point everything goes ok and I can see the following TitleAreaDialog in the WindowBuilder (top image) and the problem comes when I try to run the eclipse plugin. The tree and it´s elements of the left side disappear:
 
WindowBuilder (top) and Plugin executed (bottom)
 
Does anybody know what is happening? Do I have to add something to plugin.xml or MANIFEST.MF?
 
Thank you.
 
EDIT: In the zip you will find the plugin.xml, MANIFEST.XML, build.properties, Handler and the gui called PlugiGUI. If you have any questions ask me please.
 
Thank you.
 
You can download the code here.
 
EDIT 2: Part of the MANIFEST.MF code is the following
 
Bundle-SymbolicName: org.eclipse.plugin.arturito;singleton:=true
Require-Bundle: org.eclipse.ui,
 org.eclipse.core.runtime
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Bundle-ActivationPolicy: lazy
Bundle-ClassPath: .,
 swing2swt.jar
 
Part of the TitleAreaDialog code is the following:
 
/**
* Create contents of the dialog.
* @param parent
*/
@Override
protected Control createDialogArea(Composite parent) {
    //TITLE AND IMAGE OF TitleDialog
                ...

    //Composite        
    Composite area = (Composite) super.createDialogArea(parent);
    Composite container = new Composite(area, SWT.NONE);
    container.setLayout(new FillLayout(SWT.HORIZONTAL));
    container.setLayoutData(new GridData(GridData.FILL_BOTH));

    //Creates the division
    SashForm sashForm = new SashForm(container, SWT.NONE);


    //Right division
    Group rightGroup = new Group(sashForm, SWT.NONE);
    rightGroup.setLayout(new StackLayout());

    //Create the tree
    Tree tree = new Tree(rightGroup, SWT.BORDER);
    tree.setLinesVisible(true);
    tree.setToolTipText("");
    tree.setHeaderVisible(true);

    //Create tree elements
    TreeItem pluginProperties = new TreeItem(tree, SWT.NONE);
    pluginProperties.setText("Plugin properties");
    pluginProperties.setImage(ResourceManager.getPluginImage("org.eclipse.plugin.arturito", "icons/arturitoProperties.png"));


    TreeItem createPluginProperties = new TreeItem(pluginProperties, SWT.NONE);
    createPluginProperties.setText("Create");
    createPluginProperties.setImage(ResourceManager.getPluginImage("org.eclipse.plugin.arturito", "icons/arturitoPlus.png"));
    TreeItem editPluginProperties = new TreeItem(pluginProperties, SWT.NONE);
    editPluginProperties.setText("Edit/Delete");
    editPluginProperties.setImage(ResourceManager.getPluginImage("org.eclipse.plugin.arturito", "icons/arturitoRemoveEdit.png"));
    pluginProperties.setExpanded(true);

    //MORE TREE ELEMENTS WITH SAME PATTERN
    ..............

    //Left division
    Group leftGroup = new Group(sashForm, SWT.NONE);
    leftGroup.setLayout(new StackLayout());

    Composite projectConfigDescriptor = new Composite(leftGroup, SWT.NONE);

   //Proportion of sashForm
    sashForm.setWeights(new int[] {220, 469});
    return area;
}
 
Why does the WindowBuilder show the TitleDialog like I want and my plugin doesn´t?

原文：https://stackoverflow.com/questions/39770275