如何在Windows上制作相同高度的SWT按钮,文本和标签？

Question

我正在尝试制作用于聊天的GUI,并且我连续放置了三个SWT控件.

不幸的是,我无法为他们找到漂亮的路线.

以下代码

    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new GridLayout(3, false));

    Label firstLabel = new Label(shell, SWT.NONE);
    firstLabel.setText("PROMPT:");
    firstLabel.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));

    Text firstText = new Text(shell, SWT.NONE);
    firstText.setText("hello");
    firstText.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));

    Button firstButton = new Button(shell, SWT.PUSH);
    firstButton.setText("Say");
    firstButton.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));

    shell.pack();
    shell.open();
    shell.setSize(400, 300);

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

给

即文本字段与按钮一样高,但文本不在其中垂直居中.

如果以下方式编写文本代码

    Text firstText = new Text(shell, SWT.NONE);
    firstText.setText("hello");
    firstText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

我会得到

最美丽的结果将由

    Text firstText = new Text(shell, SWT.BORDER);
    firstText.setText("hello");
    firstText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

是的

但是按钮再次比文本略高.

UPDATE

人们说他们在非Windows平台上有很好的结果,但问题可能是如何控制SWT控件的填充/边距.

更新2

即使在最好的情况下,文本字段的高度也小于Windows上的按钮,结果与平台有关.

Answer 1

这是一个代码示例，应该可以让您了解如何解决您的问题：

public static void main(String[] args)
{
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new GridLayout(3, false));

    Label firstLabel = new Label(shell, SWT.NONE);
    firstLabel.setText("PROMPT:");
    firstLabel.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));

    Text firstText = new Text(shell, SWT.BORDER);
    firstText.setText("hello");
    firstText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

    Button firstButton = new Button(shell, SWT.PUSH);
    firstButton.setText("Say");
    firstButton.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));

    Label secondLabel = new Label(shell, SWT.NONE);
    secondLabel.setText("PROMPT:");
    secondLabel.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, true));

    Text secondText = new Text(shell, SWT.BORDER | SWT.MULTI | SWT.WRAP);
    secondText.setText("hello");
    secondText.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

    Button secondButton = new Button(shell, SWT.PUSH);
    secondButton.setText("Say");
    secondButton.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, true));

    shell.pack();
    shell.open();
    shell.setSize(400, 300);

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

看起来像这样：

没有SWT.BORDER：