JFrame 中的两个 JPanel 并排，其中一个 JPanel 具有固定宽度 [英] Two JPanels side by side in a JFrame with one JPanel having a fixed width

问题描述

为了方便起见，我在下面创建了一个我想要的图:

To make things easier, I've created a figure below of what I want:

基本上，左侧面板显示图像，右侧面板显示颜色条.我已经有两个面板类可以按照我想要的方式显示图像和颜色条，但现在我想将它们并排放置在 JFrame 中.现在，我不确定最好的实现是什么，所以如果有人有任何概念上不同的想法，那么他们将不胜感激.

Basically, the panel on the left displays an image and the panel on the right will display a colorbar. I've already got two panel classes that display the image and colorbar how I want, but now I want to put them side by side inside a JFrame. Now, I'm not exactly sure what the best implementation would be for this so if anyone has any conceptually different ideas then they would be appreciated.

我已经尝试过 GridLayout，但它似乎以百分比来定位事物.关于此问题的一个棘手问题是，我希望右侧的面板具有固定宽度，因为我不希望颜色条在调整框架大小时改变宽度.

I've already tried a GridLayout, but it seemed to position things in terms of percentages. The one tricky thing about this is that I'd like the panel on the right to be a fixed width because I don't want the colorbar to change widths as the frame is resized.

推荐答案

好的，JB Nizet 很容易回答，但这是我使用的代码:

Ok, well JB Nizet answered it pretty easily, but here is the code I used:

public class Data2DFrame extends JFrame{
    public Data2DFrame(Data2D data2D,double min,double max,Data2DColorMap data2DColorMap) {    
        // Set image if data is nonempty
        if (data2D.height > 0 && data2D.width > 0) {
            // Set data panel
            Data2DPanel data2DPanel = new Data2DPanel(data2D,min,max,data2DColorMap);
            data2DPanel.toggleKeyBoard(); // Allow keyboard interaction
            data2DPanel.toggleMouse();    // Allow mouse interaction
            // data2DPanel.setPreferredSize(new Dimension(data2D.width,data2D.height));

            // Set colorbar
            Data2DColorBar data2DColorBar = new Data2DColorBar(min,max,data2DColorMap);
            // data2DColorBar.setPreferredSize(new Dimension(100,data2D.height));

            // Arrange
            this.setLayout(new BorderLayout());
            this.add(data2DPanel,BorderLayout.CENTER);
            this.add(data2DColorBar,BorderLayout.LINE_END);
            this.pack();
        }        
    }
}

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