在jsplitpane中的jscrollpane中调整canvas的问题 [英] Resizing issue with canvas within jscrollpane within jsplitpane

问题描述

我正在使用NetBeans GUI编辑器创建一个应用程序，我希望在其中有一个 JSplitPane ，其顶部组件将是 JScrollPane 中的> Canvas ，底部组件将是 JTextArea ，或类似那个。

I'm creating an application using the NetBeans GUI Editor, in which I want to have a JSplitPane, the top component of which will be a Canvas within a JScrollPane and the bottom component will be a JTextArea, or something like that.

当我向下拉分频器，从而增加顶部组件的大小时，所有东西似乎都调整得很好。

When I pull the divider downwards, and thus increasing the size of the top component everything seem to resize just fine.

当我试图向上推动分频器时出现问题：
分频器似乎在 Canvas 之下（可能在 JScrollPane 。）

The problem appears when I'm trying to push the divider upwards: The divider seems to go beneath the Canvas (and maybe beneath the JScrollPane too).

我尝试了<$ c $的首选/最小/最大尺寸的各种组合c> JScrollPane 和 Canvas 但似乎没有任何效果。

I have tried various combinations of the preferred/minimum/maximum sizes of the JScrollPane and Canvas but nothing seems to work.

这是部分Netbeans生成的代码可能与手头的问题有关：

This is the part of the code that Netbeans generated that may have something to do with the problem at hand:

jSplitPane1 = new javax.swing.JSplitPane();
jScrollPane1 = new javax.swing.JScrollPane();
canvas1 = new java.awt.Canvas();
jTextField1 = new javax.swing.JTextField();

jSplitPane1.setDividerLocation(300);
jSplitPane1.setOrientation(javax.swing.JSplitPane.VERTICAL_SPLIT);

jScrollPane1.setViewportView(canvas1);

jSplitPane1.setTopComponent(jScrollPane1);

jTextField1.setText("jTextField1");
jSplitPane1.setRightComponent(jTextField1);

由于这是我的第一个问题，我不允许在问题中嵌入图像，所以我将发布链接：

Since this is my first question, I'm not allowed to embed an image in the question, so I will just post the link:

红色箭头表示分隔线的位置。

The red arrows indicate the position of the divider.

提前感谢您的时间。

推荐答案

在阅读了davidbuzatto的评论之后，我搜索了关于混合AWT和Swing组件的信息，我有点惊讶地发现它是如此糟糕的做法。

After reading the comment by davidbuzatto I googled about mixing AWT and Swing components and I was a little surprissed to find out that it is such a bad practice.

我找到了对我的问题最准确的答案这里

I found the most accurate answer to my question here

重量级组件有自己的Z排序。这就是为什么Swing和AWT不能组合在一个容器中的原因。如果是，则AWT组件将在Swing组件的TOP上绘制。

Heavyweight components have their own Z-ordering. This is the reason why Swing and AWT cannot be combined in a single container. If they are, the AWT components will be drawn on TOP of Swing components.

例如：当AWT组件与JtabbedPane一起使用时，它们不会在标签位于时消失切换。

For example: When AWT components are used with JtabbedPane, they do not disappear when the tabs are switched.

感谢davidbuzatto向我展示道路： - ）

Thanks davidbuzatto for showing me the way :-)

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