org.eclipse.ui.trim.status显示不完整的问题

解决这个问题翻找了很多英文文档，但是发布以后文章被到处复制没有来源，表示十分气愤。

如需转载，请标明来源http://equalxx.iteye.com/

 

在右下角添加状态时配置的control继承的类是WorkbenchWindowControlContribution，按正常步骤在createControl后发现只能调整横向大小，不能调整竖向，每次都是显示一部分，很奇怪。查了很多资料，包括eclipse登记的bug网址：

https://bugs.eclipse.org/bugs/show_bug.cgi?id=466609#c21

https://bugs.eclipse.org/bugs/show_bug.cgi?id=186800

https://bugs.eclipse.org/bugs/show_bug.cgi?id=471313

里面都有详细的对话描述问题，总之就是这个toolItem被固定了大小，且用户不可改变。

最后其实解决办法很简单，在createControl中添加parent.getParent().setRedraw(true);以及isDynamic

 

plugin.xml配置如下

 

<menuContribution
            locationURI=" toolbar:org.eclipse.ui.trim.status">
         <toolbar
               id="test.trim.status.toolbar">
            <control
                  class="xxxxxxxx.ExampleControlContribution"
                  id="xxxxxxxxx.ExampleControlContribution">
            </control>
         </toolbar>
      </menuContribution>

 

 

类中代码如下

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.menus.WorkbenchWindowControlContribution;


public class ExampleControlContribution extends WorkbenchWindowControlContribution {

//	Image imgOnLine = SignInConstants.online.createImage();
//	Image imgOffLine = SignInConstants.offline.createImage();
//	Image imgMessage = SignInConstants.message.createImage();

	WorkbenchWindowControlContribution contribution;

	public ExampleControlContribution() {
		super();
		contribution = this;
	}

	protected Control createControl(Composite parent) {
		parent.getParent().setRedraw(true);
		GridLayout gridLayout = new GridLayout(1, false);
		gridLayout.horizontalSpacing = 0;
		gridLayout.verticalSpacing = 0;
		gridLayout.marginLeft = 0;
		gridLayout.marginHeight = 0;
		gridLayout.marginTop = 0;
		gridLayout.numColumns = 1;
		parent.setLayout(gridLayout);

		

		GridData data = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);
		data.heightHint = 20;
		Button ccCtrl = new Button(parent, SWT.CENTER);
//		ccCtrl.setImage(imgOnLine);
		ccCtrl.setText("已登录");
		ccCtrl.setToolTipText("已登录");
		ccCtrl.setLayoutData(data);

		return parent;
	}

	@Override
	public boolean isDynamic() {
		return true;
	}
}