Java SWT-滴定法

我正在尝试使用SWT和JFace创建一个基本对话框类：

 public class AplotBaseDialog extends TitleAreaDialog

我对如何布置对话框感到困惑

在Swing中执行时，我会有一个

createDialog

方法。然后在该方法中，我将添加JPanel方法的组件。然后将组件添加到我的中心面板。这是基本对话框。每个面板方法都有自己的布局

这是一个非常简单的示例（伪代码）

您可以看到我是如何在方法中创建面板的，而不是将它们作为组件添加到基础面板中

---

使用

titlearealog

你会怎么做？

我还没有使用

titlearealog

，但这里有一个简单的

对话框，我自己用。它应该能让您了解对话框的内部工作原理。它基本上只是一个带有一些错误消息和复选框的对话框：

public class CheckboxDialog extends Dialog {

    private String message = "";
    private String checkboxMessage = "";
    private boolean checkValue;

    private Button checkButton;

    /* Constructor, set shell style and set block on open (rest of gui is blocked until closed) */
    public CheckboxDialog(Shell parentShell) {
        super(parentShell);
        setShellStyle(SWT.CLOSE | SWT.TITLE | SWT.BORDER | SWT.OK | SWT.APPLICATION_MODAL);
        setBlockOnOpen(true);
    }

    /* creates the content of the dialog */
    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);

        /* set the layout for the content (gridlayout with 1 column)*/
        GridLayout layout = new GridLayout(1, false);
        layout.marginHeight = 15;
        layout.marginWidth = 30;
        composite.setLayout(layout);

        /* add a label with some text */
        final Label content = new Label(composite, SWT.NONE);
        content.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
        content.setText(message);

        /* add a checkbox button */
        checkButton = new Button(composite, SWT.CHECK);
        checkButton.setText(checkboxMessage);
        checkButton.setSelection(true);
        checkButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));

        return composite;
    }

    /* create the dialog buttons (in this case, only an OK button) */
    protected void createButtonsForButtonBar(Composite parent)
    {
        createButton(parent, IDialogConstants.OK_ID, "OK", true);
    }

    /* configure the dialog's shell (set title) */
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText("Error");
    }

    /* this method is executed if the OK button is pressed */
    public void okPressed()
    {
        checkValue = checkButton.getSelection();
        close();
    }

    /* getter and setter methods */
    public void setMessage(String message) {
        this.message = message;
    }

    public void setCheckboxMessage(String checkboxMessage) {
        this.checkboxMessage = checkboxMessage;
    }

    public boolean getCheckBoxValue()
    {
        return checkValue;
    }
}

如您所见，SWT中没有
add
方法。您只需在每个小部件的构造函数中指定父级

此外，Vogella提供了一个非常好的教程，详细介绍了如何创建JFace对话框。这是另一个关于如何使用
标题readialog
的示例，如果我理解正确的话-当您打开对话框时，它就像一个空画布。然后你开始创建你的复合材料。受保护的空白a（复合父项）{@jktater是的，一个简单对话框是空的，即包含一个空的
composite
。此
composite
填充在
createDialogArea（复合父项）中
方法，然后返回。当您打开对话框时，会自动调用此方法。您不必自己执行此操作。如果我理解正确，当您打开对话框时，就像一个空画布。然后开始创建复合。受保护的void a（复合父项）{layout manager}受保护的void b（复合父对象）{layout manager}因此a和b复合对象都位于对话框窗口中显示的父复合对象中，并且它们的布局来自方法中的布局管理器
public class CheckboxDialog extends Dialog {

    private String message = "";
    private String checkboxMessage = "";
    private boolean checkValue;

    private Button checkButton;

    /* Constructor, set shell style and set block on open (rest of gui is blocked until closed) */
    public CheckboxDialog(Shell parentShell) {
        super(parentShell);
        setShellStyle(SWT.CLOSE | SWT.TITLE | SWT.BORDER | SWT.OK | SWT.APPLICATION_MODAL);
        setBlockOnOpen(true);
    }

    /* creates the content of the dialog */
    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);

        /* set the layout for the content (gridlayout with 1 column)*/
        GridLayout layout = new GridLayout(1, false);
        layout.marginHeight = 15;
        layout.marginWidth = 30;
        composite.setLayout(layout);

        /* add a label with some text */
        final Label content = new Label(composite, SWT.NONE);
        content.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
        content.setText(message);

        /* add a checkbox button */
        checkButton = new Button(composite, SWT.CHECK);
        checkButton.setText(checkboxMessage);
        checkButton.setSelection(true);
        checkButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));

        return composite;
    }

    /* create the dialog buttons (in this case, only an OK button) */
    protected void createButtonsForButtonBar(Composite parent)
    {
        createButton(parent, IDialogConstants.OK_ID, "OK", true);
    }

    /* configure the dialog's shell (set title) */
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText("Error");
    }

    /* this method is executed if the OK button is pressed */
    public void okPressed()
    {
        checkValue = checkButton.getSelection();
        close();
    }

    /* getter and setter methods */
    public void setMessage(String message) {
        this.message = message;
    }

    public void setCheckboxMessage(String checkboxMessage) {
        this.checkboxMessage = checkboxMessage;
    }

    public boolean getCheckBoxValue()
    {
        return checkValue;
    }
}