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jr4e — Tue, 23 Sep 2008 03:44:00 GMT

public class NameManager implements INameManager {
private Set namePool = new HashSet();

public String generateName(String nameType) {

       if (!namePool.contains(nameType)) {
      namePool.add(nameType);
        return nameType;
  }

  int i = 1;
  while (namePool.contains(nameType + i)) {
   i++;
  }
  namePool.add(nameType + i);
  return nameType + i;
}

jr4e 2008-09-23 11:44 发表评论

jr4e — Fri, 19 Sep 2008 04:38:00 GMT

ImageDescriptor temp = ImageDescriptor.createFromURL(url);

org.eclipse.swt.graphics.Image image = temp.createImage();

jr4e 2008-09-19 12:38 发表评论

jr4e — Thu, 18 Sep 2008 10:55:00 GMT

1.通过获得当前�Ȁ�zȝ��editor来得到NameManager
IEditorPart editor = PlatformUI.getWorkbench()
    .getActiveWorkbenchWindow().getActivePage().getActiveEditor();
  ReportEditor reportEditor = null;
  if (editor instanceof ReportEditor)
   reportEditor = (ReportEditor) editor;

  String dsDisplayName = reportEditor.getDisplaynameByQDSName(table
    .getDataSet());
  INameManager nameManager = ((ReportEditorInput) reportEditor
    .getEditorInput()).getNameManager();
2.获得editPart的祖先的�Ҏ��
GefUtilities.getAncestorOfClass(Class c, EditPart editPart)
public static EditPart getAncestorOfClass(Class c, EditPart editPart)

3.获得模型��先的方�?br /> ModelUtilities.getAncestorOfClass(Class c, EObject model));
public static EObject getAncestorOfClass(Class c, EObject model)

jr4e 2008-09-18 18:55 发表评论

动态生成WizardPage

jr4e — Tue, 09 Sep 2008 02:15:00 GMT

Eclipse的Wizard是由一�p�d��WizardPage�l�成的。缺省情况下�Q�WizardDialog在初始化的时候就会调用每个WizardPage的createControl()�Ҏ��来布局�q�些WizardPage�Q�这是�ؓ了方便决定WizardDialog�H�口的大��。但如果某个WizardPage里的控�g是需要动态生成的�Q�例如，用户在Page1里输入一个整数n�Q�Page2里要�Ҏ��q�个整数生成n个文本框�Q�由于Page2的createControl()只有一�ơ被调用的机会，�q�且在得到n之前��p��WizardDialog调用�q�了�Q�集中布局的方式就为生成Page2的界面带来了困难�?/p>

和问题的描述比�v来，解决的方法简单很多，只要覆盖Wizard的createPageControls()�Ҏ��让它什么都不要做就可以�?br /> @Override
public void createPageControls(Composite pageContainer) {
//super.createPageControls(pageContainer);
}

jr4e 2008-09-09 10:15 发表评论

Eclipse Plug-in 开发中如何选用合适的policy�q�行�l�承

jr4e — Mon, 01 Sep 2008 06:53:00 GMT

1.用于大小改变�Q�位�|�改变，以及��d��操作�Q�XYLayoutEditPolicy
2.用于实现菜单�Q�删除操作－ComponentEditPolicy
3.用于实现选择操作 �Q�ResizableEditPolicy

jr4e 2008-09-01 14:53 发表评论