JScrollPane垂直对齐

Question

这是我处理组件的功能，它可以添加到我的面板中。

    public void addComp(JPanel thePanel, JComponent comp, int xPos, int yPos, int compWidth, int compHeight, int place, int stretch){

    GridBagConstraints gridConstraints = new GridBagConstraints();

    gridConstraints.gridx = xPos;
    gridConstraints.gridy = yPos;
    gridConstraints.gridwidth = compWidth;
    gridConstraints.gridheight = compHeight;
    gridConstraints.weightx = 1;
    //gridConstraints.weighty = 1;
    gridConstraints.insets = new Insets(5,5,5,5);
    gridConstraints.anchor = place;
    gridConstraints.fill = stretch;

    thePanel.add(comp, gridConstraints);

}
    JPanel contPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));

    JPanel elementBorder = new JPanel(new BorderLayout());
    elementBorder.setBorder(new TitledBorder("Element Ansicht"));
    JPanel buttonBorder = new JPanel(new BorderLayout());
    buttonBorder.setBorder(new TitledBorder("Funktionen"));

    JPanel mixedPanel = new JPanel(new GridBagLayout());

    JPanel leftPanel = new JPanel(new FlowLayout());

    addWinButt = new JButton("hinzuf\u00fcgen");
    delWinButt = new JButton("l\u00f6schen");
    editWinButt = new JButton("bearbeiten");
    listButt = new JButton("Material-Liste")

    winViewPanel = new JPanel(new GridBagLayout());

现在我把我想要的组件放到Panel中，它将被提供给JScrollPane

    addComp(winViewPanel, new JLabel("PosNummer"), 0, 0, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.NONE);
    addComp(winViewPanel, new JLabel("Breite"), 1, 0, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.NONE);
    addComp(winViewPanel, new JLabel("H\u00f6he"), 2, 0, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.NONE);
    addComp(winViewPanel, new JLabel("Anzahl"), 3, 0, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.NONE);


    winselectedMap = new HashMap<String, JCheckBox>();

    for(int i = 0; i < selAssign.fgetArrayList().size();i++){
        addComp(winViewPanel, new JLabel(selAssign.fgetArrayList().get(i).getPosNr()), 0, (i+1), 1, 0, GridBagConstraints.NORTH, GridBagConstraints.NONE);
        addComp(winViewPanel, new JLabel("" + (int)selAssign.fgetArrayList().get(i).getTotalWidth()), 1, (i+1), 1, 0, GridBagConstraints.NORTH, GridBagConstraints.NONE);
        addComp(winViewPanel, new JLabel("" + (int)selAssign.fgetArrayList().get(i).getTotalHeight()), 2, (i+1), 1, 0, GridBagConstraints.NORTH, GridBagConstraints.NONE);
        addComp(winViewPanel, new JLabel("" + selAssign.fgetArrayList().get(i).getWindowCount()), 3, (i+1), 1, 0, GridBagConstraints.NORTH, GridBagConstraints.NONE);
        JCheckBox box = new JCheckBox();
        box.setName("checkselWinBox" + i);
        winselectedMap.put(box.getName(), box);
        addComp(winViewPanel, box, 4, (i+1), 1, 1, GridBagConstraints.NORTH, GridBagConstraints.NONE);
    }

    JScrollPane scrollPane = new JScrollPane(winViewPanel);

    scrollPane.setBorder(null);
    scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
    scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
    scrollPane.setPreferredSize( new Dimension(500, 600) );
    scrollPane.getVerticalScrollBar().setUnitIncrement(16);

    buttonBorder.add(leftPanel);
    elementBorder.add(scrollPane, BorderLayout.NORTH);

    addComp(mixedPanel, buttonBorder, 0, 0, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.NONE);
    addComp(mixedPanel, elementBorder, 0, 1, 1, 0, GridBagConstraints.NORTH, GridBagConstraints.NONE);

    contPanel.add(mixedPanel);

我试图在JScrollPane中设置我的组件，因为某些原因它将每个组件放入SCrollPane的中心，而不是从顶部开始。