我正在尝试在单击按钮时向复合组件添加文本框、按钮等部件。我已经尝试过,但只能动态地添加这些部件,而且只能添加到复合组件的大小范围内。我的JFace对话框有一个滚动复合组件,其中包含一个复合组件。在主复合组件中,我还有3个其他复合组件,我必须实现此功能,因此如果我向复合组件添加动态部件,则可能会扩展,但不应重叠到下方的现有复合组件,而应相应地调整其他复合组件,并且我应该能够在单击按钮时处理这些部件。之前有人尝试过动态添加和删除部件吗?我是新手,对Swt、Jface不熟悉。因此,是否有人可以在此分享他们的经验?我将发布我尝试过的代码。
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
public class DynamicDialog extends Dialog {
private Text text;
private Text text_1;
private Composite composite;
/**
* Create the dialog.
* @param parentShell
*/
public DynamicDialog(Shell parentShell) {
super(parentShell);
}
/**
* Create contents of the dialog.
* @param parent
*/
@Override
protected Control createDialogArea(Composite parent) {
Composite container = (Composite) super.createDialogArea(parent);
container.setLayout(new FillLayout(SWT.HORIZONTAL));
ScrolledComposite scrolledComposite = new ScrolledComposite(container, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
scrolledComposite.setExpandHorizontal(true);
scrolledComposite.setExpandVertical(true);
composite = new Composite(scrolledComposite, SWT.NONE);
composite.setLayout(new FormLayout());
scrolledComposite.setContent(composite);
scrolledComposite.setMinSize(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT));
final Composite composite_1 = new Composite(composite, SWT.NONE);
composite_1.setLayout(new GridLayout(4, false));
final FormData fd_composite_1 = new FormData();
fd_composite_1.top = new FormAttachment(0);
fd_composite_1.left = new FormAttachment(0, 10);
fd_composite_1.bottom = new FormAttachment(0, 85);
fd_composite_1.right = new FormAttachment(0, 430);
composite_1.setLayoutData(fd_composite_1);
Label label = new Label(composite_1, SWT.NONE);
label.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
label.setText("1");
text_1 = new Text(composite_1, SWT.BORDER);
text_1.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
text = new Text(composite_1, SWT.BORDER);
text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
Button btnDelete = new Button(composite_1, SWT.NONE);
btnDelete.setText("delete");
final Composite composite_2 = new Composite(composite, SWT.NONE);
composite_2.setLayout(new GridLayout(2, false));
final FormData fd_composite_2 = new FormData();
fd_composite_2.bottom = new FormAttachment(100, -91);
fd_composite_2.top = new FormAttachment(0, 91);
fd_composite_2.right = new FormAttachment(100, -10);
fd_composite_2.left = new FormAttachment(100, -74);
composite_2.setLayoutData(fd_composite_2);
new Label(composite_2, SWT.NONE);
Button btnAdd = new Button(composite_2, SWT.NONE);
btnAdd.setText("ADD");
btnAdd.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
Label label2 = new Label(composite_1, SWT.NONE);
label2.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
label2.setText("1");
Text text_12 = new Text(composite_1, SWT.BORDER);
text_12.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
Text text13 = new Text(composite_1, SWT.BORDER);
text13.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
Button btnDelete = new Button(composite_1, SWT.NONE);
btnDelete.setText("delete");
//Point p0 = composite_1.getSize();
//composite_1.setSize(SWT.DEFAULT,SWT.DEFAULT);
composite_1.layout();
//Point p = composite.getSize();
//composite.setSize(SWT.DEFAULT,SWT.DEFAULT);
//composite.setSize(p);
// composite.layout();
}
});
return container;
}
/**
* Create contents of the button bar.
* @param parent
*/
@Override
protected void createButtonsForButtonBar(Composite parent) {
createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL,
true);
createButton(parent, IDialogConstants.CANCEL_ID,
IDialogConstants.CANCEL_LABEL, false);
}
/**
* Return the initial size of the dialog.
*/
@Override
protected Point getInitialSize() {
return new Point(450, 300);
}
public static void main(String[] args){
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
DynamicDialog dd = new DynamicDialog(shell);
dd.open();
}
}
ScrolledComposite
通常很麻烦。你必须小心地将其与滚动组件包装在一起。但是,如果你花足够的时间去尝试,最终你会得出结论:你实际上可以在Dialog
内部使用ScrolledComposite
,并且它也会滚动。 - Georgian