EclipseRCP开发之如何让左右两边两个表格协同滚动

有这样一个需求，左右各一个表格，要求拖动其中任意一个表格中的滚动条，另外一个都随之滚动，看起来就像是在一个表格中。具体如下图：



具体实现如下：




/** *//**


* 设置左边(右边)表格的滚动条根据右边(左边)滚动条滚动而滚动


*/


// Make selection the same in both tables




tParameterAlarm1.addListener(SWT.Selection, new Listener() ...{




public void handleEvent(Event event) ...{


tParameterAlarm2.setSelection(tParameterAlarm1.getSelectionIndices());


}


});


// On Windows, the selection is gray if the table does not have focus.


// To make both tables appear in focus, draw teh selection background


// here.


// This part only works on version 3.2 or later.




Listener eraseListener = new Listener() ...{




public void handleEvent(Event event) ...{




if ((event.detail & SWT.SELECTED) != 0) ...{


GC gc = event.gc;


Rectangle rect = event.getBounds();


gc.setForeground(container.getDisplay().getSystemColor(
SWT.COLOR_LIST_SELECTION_TEXT));


gc.setBackground(container.getDisplay().getSystemColor(
SWT.COLOR_LIST_SELECTION));


gc.fillRectangle(rect);


event.detail &= ~SWT.SELECTED;


}


}


};




tParameterAlarm1.addListener(SWT.EraseItem, eraseListener);


// Make vertical scrollbars scroll together


ScrollBar vBarLeft = tParameterAlarm1.getVerticalBar();




vBarLeft.addListener(SWT.Selection, new Listener() ...{




public void handleEvent(Event event) ...{


tParameterAlarm2.setTopIndex(tParameterAlarm1.getTopIndex());


}


});




tParameterAlarm2.addListener(SWT.Selection, new Listener() ...{




public void handleEvent(Event event) ...{


tParameterAlarm1.setSelection(tParameterAlarm2.getSelectionIndices());


}


});


tParameterAlarm2.addListener(SWT.EraseItem, eraseListener);


ScrollBar vBarRight = tParameterAlarm2.getVerticalBar();




vBarRight.addListener(SWT.Selection, new Listener() ...{




public void handleEvent(Event event) ...{


tParameterAlarm1.setTopIndex(tParameterAlarm2.getTopIndex());


}


});

其中tParameterAlarm1为左边表格的TableViewer，tParameterAlarm2为右边表格的TableViewer