的Java SWT調整大小TRIPPLE SashForm不斷中間順利

Question

我實現了一個Java SWT SashForm 3個窗格：

SashForm oSash = new SashForm(cmptParent, SWT.NONE); 
GridLayout gridLayout = new GridLayout(); 
gridLayout.numColumns = 3; 
oSash.setLayout(gridLayout); 
oSash.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true)); 

Composite oPaneLeft = new Composite(oSash, SWT.NONE); 
... 
Composite oPaneMiddle = new Composite(oSash, SWT.NONE); 
... 
Composite oPaneRight = new Composite(oSash, SWT.NONE); 

的想法是有一個固定大小的中間隔板。設置初始寬度很簡單。

我希望能夠通過拖拽中間來調整窗體大小。用戶點擊中間並向左或向右拖動，從而保持中間窗格固定，只是向左或向右滑動。我能夠實現如下功能：

private static Boolean sisResizeSashMiddle = false; 
private static int siPosSashMiddleOffset = 0; 

... 

cmptPaneMiddle = new Composite(cmptParent, SWT.NONE); 
cmptPaneMiddle.addMouseListener(new MouseAdapter() 
{ 
    @Override 
    public void mouseDown(MouseEvent arg0) 
    { 
     // The user wishes to resize the sash. 
     AppMain.sisResizeSashMiddle = true; 
     AppMain.siPosSashMiddleOffset = arg0.x - AppMain.siPosSashMiddleStart; 
    } 
    @Override 
    public void mouseUp(MouseEvent arg0) 
    { 
     // The user finished resizing the sash. 
     AppMain.sisResizeSashMiddle = false; 
    } 
}); 
cmptPaneMiddle.addMouseMoveListener(new MouseMoveListener() 
{ 
    public void mouseMove(MouseEvent arg0) 
    { 
     // Only resize the sashes if user hold down the mouse while dragging. 
     if (true == AppMain.sisResizeSashMiddle) 
     { 
      // Compute the width of each sash. 
      int icxShell = shell.getSize().x; 
      int icxLeft = arg0.x - AppMain.siPosSashMiddleOffset; 
      int icxMiddle = AppMain.BrowserSash_Pane_Middle_Width; 
      int icxRight = shell.getSize().x - icxLeft - icxMiddle; 

      // Compute the weights. 
      int iWeightLeft = 10000 * icxLeft/icxShell; 
      int iWeightMiddle = 10000 * icxMiddle/icxShell; 
      int iWeightRight = 10000 * icxRight/icxShell; 

      // Set the weights. 
     int[] weights = new int[] {iWeightLeft, iWeightMiddle, iWeightRight}; 
     oSash.setWeights(weights); 
     } 
    } 
}); 

我的問題是，滑動執行是生澀和緊張，絕對不光滑。有沒有更好的方式來獲得相同的效果，只是平滑而沒有生澀的行爲？

Answer 1

嘗試使用SWT.SMOOTH標誌的SashForm：

SashForm oSash = new SashForm(cmptParent, SWT.SMOOTH);