可滚动的JPanel [英] Scrollable JPanel

问题描述

如何使JPanel可滚动？我使用

How to make a JPanel scrollable? I implemented the scrollable interface yet when adding it to the containing panel with

tabbedPane.add("Editor", new JScrollPane(storeyEditor = new MNScrollablePanel()));

无效工作

代码：

public class MNScrollablePanel extends JPanel implements Scrollable {

    public Dimension getPreferredScrollableViewportSize() {
        return getPreferredSize();
    }

    public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) {
        return 10;
    }

    public boolean getScrollableTracksViewportHeight() {
        return false;
    }

    public boolean getScrollableTracksViewportWidth() {
        return false;
    }

    public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) {
        return 10;
    }
}

推荐答案

你必须使用 JScrollPane 。然后调用 setViewportview（Component）;

You have to use a JScrollPane. And then call the setViewportview(Component);

您不必实现可滚动，JPanel已全部可滚动

You don't have to implement scrollable, JPanel is allready scrollable

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