5

我正在使用BorderFactory以 Substance UI 为主题的 Swing 用户界面创建带标题的边框，我遇到了下面显示的异常。我试过了LineBorder，它工作得很好，但似乎 Substance UI 以某种方式干扰了TitledBorder. 边框绘制paintComponent通过以下方式完成：

if (getBorder() != null) {
   getBorder().paintBorder(this, g, 0, 0, getWidth(), getHeight());
}

这本身可能是不正确的。我的问题本质上是如何TitledBorder在不创建父JPanel级并将其设置在其上的情况下开始工作，这似乎有点逃避。

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
    at org.pushingpixels.lafwidget.utils.RenderingUtils.desktopHints(RenderingUtils.java:113)
    at org.pushingpixels.lafwidget.utils.RenderingUtils.installDesktopHints(RenderingUtils.java:85)
    at org.pushingpixels.substance.internal.utils.border.SubstanceEtchedBorder.paintBorder(SubstanceEtchedBorder.java:132)
    at javax.swing.border.TitledBorder.paintBorder(TitledBorder.java:330)
    at javax.swing.JComponent.paintBorder(JComponent.java:947)
    at javax.swing.JComponent.paint(JComponent.java:1055)
    at javax.swing.JComponent.paintChildren(JComponent.java:887)
    at javax.swing.JComponent.paint(JComponent.java:1063)
    at javax.swing.JComponent.paintChildren(JComponent.java:887)
    at javax.swing.JComponent.paint(JComponent.java:1063)
    at javax.swing.JComponent.paintChildren(JComponent.java:887)
    at javax.swing.JComponent.paint(JComponent.java:1063)
    at javax.swing.JComponent.paintChildren(JComponent.java:887)
    at javax.swing.JComponent.paint(JComponent.java:1063)
    at javax.swing.JLayeredPane.paint(JLayeredPane.java:585)
    at javax.swing.JComponent.paintChildren(JComponent.java:887)
    at javax.swing.JComponent.paintToOffscreen(JComponent.java:5213)
    at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1493)
    at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1424)
    at javax.swing.RepaintManager.paint(RepaintManager.java:1217)
    at javax.swing.JComponent.paint(JComponent.java:1040)
    at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:39)
    at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:78)
    at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:115)
    at java.awt.Container.paint(Container.java:1951)
    at java.awt.Window.paint(Window.java:3814)
    at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:792)
    at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:739)
    at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:688)
    at javax.swing.RepaintManager.access$700(RepaintManager.java:59)
    at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1632)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:660)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

提前感谢您的帮助。

4

1 回答 1

1

这是 laf-widget 深处的一个错误。它目前假定每个 Graphics 对象都有一个 GraphicsConfiguration 和一个与之关联的 GraphicsDevice。我有一个名为insubstantial的物质分支，可以解决这个问题。

已修复的当前快照的 maven 坐标是 com.github.insubstantial:substance:6.3-SNAPSHOT，快照存储库位于https://oss.sonatype.org/content/repositories/snapshots/。我预计在 6 月底或前后发布 6.3 列车。

于 2011-05-25T22:54:44.400 回答