设置GridLayout列的宽度 [英] Setting the width of the GridLayout columns

问题描述

我有一个 GridLayout 在一个复合中，我里面有两列。我希望列宽为$ code> Shell的宽度为75％和25％。怎么做？

I have a GridLayout inside a Composite and I have two column inside that. I want to have column width 75 % and 25 % of the Shell width . How to do that?

推荐答案

对，这里你去：使用 GridData＃widthHint 强制某个宽度的复合 s。根据 Shell的宽度计算宽度：

Right, here you go: Use the GridData#widthHint values to force a certain width of the Composites. Compute the width based on the width of the Shell:

public static void main(String[] args)
{
    Display display = Display.getDefault();
    final Shell shell = new Shell(display);
    shell.setLayout(new GridLayout(2, false));

    Composite left = new Composite(shell, SWT.BORDER);
    Composite right = new Composite(shell, SWT.BORDER);

    final GridData leftData = new GridData(SWT.FILL, SWT.FILL, true, true);
    final GridData rightData = new GridData(SWT.FILL, SWT.FILL, true, true);

    left.setLayoutData(leftData);
    right.setLayoutData(rightData);

    shell.addListener(SWT.Resize, new Listener()
    {
        @Override
        public void handleEvent(Event arg0)
        {
            Point size = shell.getSize();

            leftData.widthHint = (int) (size.x * 0.75);
            rightData.widthHint = size.x - leftData.widthHint;

            System.out.println(leftData.widthHint + " + " + rightData.widthHint + " = " + size.x);
        }
    });

    shell.pack();
    shell.open();
    shell.layout();

    while (!shell.isDisposed())
    {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

开始后：

调整大小后：

这篇关于设置GridLayout列的宽度的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！