GridBagLayout不符合椭圆形状请求

Question

我正在使用swing试图建立一个垄断板.我试图将板上的属性/空间作为单独的JPanels,可以有自己的实现,信息等,但我在空间的形状有一些麻烦.我正在使用GridBagLayout(我对这个布局管理器相当新),我正在尝试将面板放置出来,以便对于JPanels,gridwidth = 4,gridheight = 3(参见附加代码).但是,当我运行它并查看它时,面板是方形的.当我将gridheight更改为2或1时,我确认这不起作用,它仍然显示正方形(我期望JPanels更加椭圆形).

原谅命名方案,我只是在Eclipse中的一个单独的临时项目文件中尝试这种布局,然后才在我的主要垄断程序中实现gui.

import static java.awt.GridBagConstraints.*;

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;
import javax.swing.border.*;

public class MainFrame extends JFrame {

    private static final long serialVersionUID = 1L;




    public MainFrame() {
        super();
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        Dimension screenSize = getToolkit().getScreenSize();
        setSize(screenSize.height, screenSize.height);

        setLocationRelativeTo(null);

        setLayout(new GridBagLayout());

        addCorners();

        addEdges();
        setVisible(true);

        addComponentListener(new ComponentAdapter() {
            @Override
            public void componentResized(ComponentEvent e) {
                System.out.println("Component resized");
                int width = getWidth();
                int height = getHeight();
                System.out.println(width + " " + height);
                super.componentResized(e);
            }
        });
    }

    private int startingColRow = 4;
    private int endingColRow = 28;

    private int bigWidth = 4;
    private int smallWidth = 3;

    private int startingEdge = 0;
    private int endingEdge = 31;




    private void addEdges() {
        addLeftEdge();
        addTopEdge();
        addBottomEdge();
        addRightEdge();
    }




    private void addCorners() {
        addTopLeftCorner();
        addBottomLeftCorner();
        addTopRightCorner();
        addBottomRightCorner();

    }




    private void addCorner(int anchor, int gridx, int gridy) {
        add(getWhiteJPanel(), getGridBagConstraints(anchor, gridx, gridy, bigWidth, bigWidth));
    }




    private void addBottomRightCorner() {
        addCorner(SOUTHEAST, endingEdge, endingEdge);
    }




    private void addTopRightCorner() {
        addCorner(NORTHWEST, endingEdge, startingEdge);
    }




    private void addBottomLeftCorner() {
        addCorner(SOUTHWEST, startingEdge, endingEdge);
    }




    private void addTopLeftCorner() {
        addCorner(NORTHEAST, startingEdge, startingEdge);
    }




    public void addLeftEdge() {
        for (int row = startingColRow; row <= endingColRow; row += smallWidth) {
            add(getWhiteJPanel(), getGridBagConstraints(WEST, startingEdge, row, bigWidth, smallWidth));
        }
    }




    public void addRightEdge() {
        for (int row = startingColRow; row <= endingColRow; row += smallWidth) {
            add(getWhiteJPanel(), getGridBagConstraints(EAST, endingEdge, row, bigWidth, smallWidth));
        }
    }




    public void addBottomEdge() {
        for (int col = startingColRow; col <= endingColRow; col += smallWidth) {
            add(getWhiteJPanel(), getGridBagConstraints(SOUTH, col, endingEdge, smallWidth, bigWidth));
        }
    }




    public void addTopEdge() {
        for (int col = startingColRow; col <= endingColRow; col += smallWidth) {
            add(getWhiteJPanel(), getGridBagConstraints(NORTH, col, startingEdge, smallWidth, bigWidth));
        }
    }




    private static JPanel getWhiteJPanel() {
        JPanel panel = new JPanel();
        panel.setBackground(Color.WHITE);
        panel.setBorder(BorderFactory.createLineBorder(Color.BLACK));
        return panel;
    }




    private GridBagConstraints getGridBagConstraints(int anchor, int gridx, int gridy, int gridwidth, int gridheight) {
        GridBagConstraints c = new GridBagConstraints();
        c.fill = VERTICAL;
        c.weightx = c.weighty = 1;

        c.anchor = anchor;
        c.gridx = gridx;
        c.gridy = gridy;
        c.gridwidth = gridwidth;
        c.gridheight = gridheight;

        return c;
    }




    public static void main(String[] args) {
        new MainFrame();
    }
}

Answer 1

我对你有点困惑c.fill = VERTICAL,我已经假设了BOTH.除此之外,如果窗口是方形的,则棋盘将具有方形字段;如果窗口是椭圆形的,则将具有长方形字段.网格宽度和grigheight在这里完全无关紧要.相反,如果您想要在其中一个轴上重叠区域的对象,则可以使用它们.最好将网格袋布局视为大网格.然后gridwidth和gridheight告诉布局给定对象应占用多少列或行.但没有什么可说的,列应该与行高一样宽.事实上,没有什么可以说行或列具有相同的大小.所以我说你对GridBagLayout的运作方式有一些错误的想法.

如果要修复纵横比,则应为各个窗格设置首选尺寸,然后将整个板包装到滚动视图中.这将确保所有内容都以首选尺寸显示.不过,不确定滚动是否适合您的情况.如果没有,你可以尝试一个具有一些合适布局的外部容器,这将允许内部容器增长到其首选大小而不是更大.