我正在做一个大学项目,我很难用电路板网格排列组件。电路板将始终保持1:1的宽高比,但尺寸可以变化。以下是我尝试过的结果:
为什么百分比与实际图像尺寸为1200x1200的计算不符?
这是我的布局代码:
public class BoardPanel extends ViewComponent {
public static final int ROWS = 27;
public static final int COLS = 23;
private Board board = new Board();
private BufferedImage background = ResourceLoader.openImage("images/board.jpg");
public BoardPanel() {
this.add(board, "pos 4.5% 4.5%, width 76.5%, height 91%");
}
@Override
public void paintContent(Graphics2D g) {
g.drawImage(background, 0, 0, getHeight(), getHeight(), null);
}
private class Board extends ViewComponent {
public Board() {
setLayout(new GridLayout(ROWS, COLS, 1, 1));
for (int row = 0; row < ROWS; row++)
for (int col = 0; col < COLS; col++)
this.add(new Location(row, col));
}
}
}
答案 0 :(得分:2)
作为替代方案,使用BufferedImage#getSubimage()
将图像划分为全等部分,如here所示。
答案 1 :(得分:2)
我已经想出了如何做到这一点,当你看到 GridLayout
和 MigLayout
之间的区别时,就会得到答案。
当我使用 GridLayout
时,我发现了空格(插图),因为它会强制所有单元格大小相同。当我添加1px LineBorder
时,我注意到了这一点。
MigLayout
处理额外空间的方式似乎是在单元格中分配额外像素,从而迫使它尽可能理想地修复容器。例如:
this.setLayout(new MigLayout("ins 0, wrap " + COLS + ", gap 1", "grow", "grow"));
for (int row = 0; row < ROWS; row++)
for (int col = 0; col < COLS; col++)
this.add(new Location(row, col), "grow");
使用与此处显示的网格布局完全相同的容器和面板大小: (注意插图)
this.setLayout(new GridLayout(ROWS, COLS, 1, 1));
this.setBorder(new LineBorder(Color.RED));
for (int row = 0; row < ROWS; row++)
for (int col = 0; col < COLS; col++)
this.add(new Location(row, col));