stacklayoutsample.java

Eclipse RCP应用系统开发方法与实战源代码

package rcpbook.swtjface.sample;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StackLayout;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowData;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class StackLayoutSample {
	public static void main(String[] args) {
		final Display display = Display.getDefault();
		final Shell shell = new Shell();
		shell.setSize(240, 180);
		shell.setText("StackLayout布局");
		shell.setLayout(new FillLayout());

		final Composite composite1 = new Composite(shell, SWT.NONE);
		final StackLayout stackLayout = new StackLayout();
		composite1.setLayout(stackLayout);

		final Composite c1 = createStack1(composite1);
		final Composite c2 = createStack2(composite1);
		stackLayout.topControl = c1;

		final Composite composite2 = new Composite(shell, SWT.NONE);
		composite2.setLayout(new FillLayout(SWT.VERTICAL));
		final Button button1 = new Button(composite2, SWT.NONE);
		button1.setText("显示堆栈页面1");
		button1.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent arg0) {
				stackLayout.topControl = c1;
				composite1.layout();
			}
		});

		final Button button2 = new Button(composite2, SWT.NONE);
		button2.setText("显示堆栈页面2");
		button2.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent arg0) {
				stackLayout.topControl = c2;
				composite1.layout();
			}
		});

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

	// 堆栈页面1的内容
	public static Composite createStack1(Composite parent) {
		Composite composite = new Composite(parent, SWT.BORDER);
		GridLayout layout = new GridLayout();
		layout.numColumns = 2;
		layout.marginTop = 10;
		layout.marginBottom = 10;
		layout.marginRight = 10;
		layout.horizontalSpacing = 10;
		layout.makeColumnsEqualWidth = true;
		composite.setLayout(layout);
		GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
		gridData.widthHint = 60;
		gridData.heightHint = 100;
		gridData.verticalSpan = 2;
		Button button1 = new Button(composite, SWT.NONE);
		button1.setText("按钮1");
		button1.setLayoutData(gridData);
		gridData = new GridData(GridData.FILL_BOTH);
		Button button2 = new Button(composite, SWT.NONE);
		button2.setText("按钮2");
		button2.setLayoutData(gridData);
		gridData = new GridData(GridData.FILL_BOTH);
		Button button3 = new Button(composite, SWT.NONE);
		button3.setText("按钮3");
		button3.setLayoutData(gridData);
		return composite;
	}

	// 堆栈页面2的内容
	public static Composite createStack2(Composite parent) {
		Composite composite = new Composite(parent, SWT.BORDER);
		RowLayout rowLayout = new RowLayout();
		rowLayout.marginTop = 5;
		rowLayout.spacing = 5;
		composite.setLayout(rowLayout);
		Button button1 = new Button(composite, SWT.NONE);
		button1.setText("按钮1");
		button1.setLayoutData(new RowData(80, 40));
		Button button2 = new Button(composite, SWT.NONE);
		button2.setText("按钮2");
		button2.setLayoutData(new RowData(new Point(90, 40)));
		new Button(composite, SWT.NONE).setText("按钮3");
		new Button(composite, SWT.NONE).setText("按钮4");
		new Button(composite, SWT.NONE).setText("按钮5");
		return composite;
	}
}