complexgridlayoutexample.java

Eclipse各种学习的代码

/*
 * @author 于宽 创建日期 2005-9-12
 * email:[e-mail]
 * TODO 要更改此生成的文件的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
package SwtPackage;

/**
 * @author Administrator
 *
 * TODO 要更改此生成的类型注释的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
import org.eclipse.swt.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
public class ComplexGridLayoutExample {
    static Display display;

    static Shell shell;

    static Text dogName;

    static Combo dogBreed;

    static Canvas dogPhoto;

    static Image dogImage;

    static List categories;

    static Text ownerName;

    static Text ownerPhone;

    public static void main(String[] args) {

        display = new Display();

        shell = new Shell(display);

        shell.setText("Dog Show Entry");

        GridLayout gridLayout = new GridLayout();

        gridLayout.numColumns = 3;

        shell.setLayout(gridLayout);

       

        new Label(shell, SWT.NONE).setText("Dog's Name:");

        dogName = new Text(shell, SWT.SINGLE | SWT.BORDER);

        GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL);

        gridData.horizontalSpan = 2;

        dogName.setLayoutData(gridData);

        new Label(shell, SWT.NONE).setText("Breed:");

        dogBreed = new Combo(shell, SWT.NONE);

        dogBreed.setItems(new String [] {"Collie", "Pitbull", "Poodle", "Scottie"});

        dogBreed.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));

        Label label = new Label(shell, SWT.NONE);

        label.setText("Categories");

        label.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER));

        

        new Label(shell, SWT.NONE).setText("Photo:");

        dogPhoto = new Canvas(shell, SWT.BORDER);

        gridData = new GridData(GridData.FILL_BOTH);

        gridData.widthHint = 80;

        gridData.heightHint = 80;

        gridData.verticalSpan = 3;

        dogPhoto.setLayoutData(gridData);

        dogPhoto.addPaintListener(new PaintListener() {

           public void paintControl(final PaintEvent event) {

               if (dogImage != null) {

                  event.gc.drawImage(dogImage, 0, 0);

               }

           }

        });

        categories = new List(shell, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL);

        categories.setItems(new String [] {

           "Best of Breed", "Prettiest Female", "Handsomest Male",

           "Best Dressed", "Fluffiest Ears", "Most Colors",

           "Best Performer", "Loudest Bark", "Best Behaved",

           "Prettiest Eyes", "Most Hair", "Longest Tail",

           "Cutest Trick"});

        gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL);

        gridData.verticalSpan = 4;

        int listHeight = categories.getItemHeight() * 12;

        Rectangle trim = categories.computeTrim(0, 0, 0, listHeight);

        gridData.heightHint = trim.height;

        categories.setLayoutData(gridData);

        

        Button browse = new Button(shell, SWT.PUSH);

        browse.setText("Browse...");

        gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL);

        gridData.horizontalIndent = 5;

        browse.setLayoutData(gridData);

        browse.addSelectionListener(new SelectionAdapter() {

           public void widgetSelected(SelectionEvent event) {

               String fileName = new FileDialog(shell).open();

               if (fileName != null) {

                  dogImage = new Image(display, fileName);

               }

           }

        });

        

        Button delete = new Button(shell, SWT.PUSH);

        delete.setText("Delete");

        gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING);

        gridData.horizontalIndent = 5;

        delete.setLayoutData(gridData);

        delete.addSelectionListener(new SelectionAdapter() {

           public void widgetSelected(SelectionEvent event) {

               if (dogImage != null) {

                  dogImage.dispose();

                  dogImage = null;

                  dogPhoto.redraw();

               }

           }

        });

        

        Group ownerInfo = new Group(shell, SWT.NONE);

        ownerInfo.setText("Owner Info");

        gridLayout = new GridLayout();

        gridLayout.numColumns = 2;

        ownerInfo.setLayout(gridLayout);

        gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL);

        gridData.horizontalSpan = 2;

        ownerInfo.setLayoutData(gridData);

        

        new Label(ownerInfo, SWT.NONE).setText("Name:");

        ownerName = new Text(ownerInfo, SWT.SINGLE | SWT.BORDER);

        ownerName.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        

        new Label(ownerInfo, SWT.NONE).setText("Phone:");

        ownerPhone = new Text(ownerInfo, SWT.SINGLE | SWT.BORDER);

        ownerPhone.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        

        Button enter = new Button(shell, SWT.PUSH);

        enter.setText("Enter");

        gridData = new GridData(GridData.HORIZONTAL_ALIGN_END);

        gridData.horizontalSpan = 3;

        enter.setLayoutData(gridData);

        enter.addSelectionListener(new SelectionAdapter() {

           public void widgetSelected(SelectionEvent event) {

               System.out.println("\nDog Name: " + dogName.getText());

               System.out.println("Dog Breed: " + dogBreed.getText());

               System.out.println("Owner Name: " + ownerName.getText());

               System.out.println("Owner Phone: " + ownerPhone.getText());

               System.out.println("Categories:");

               String cats[] = categories.getSelection();

               for (int i = 0; i < cats.length; i++) {

                  System.out.println("\t" + cats[i]);

               }

           }

        });

        

        shell.pack();

        shell.open();

        while (!shell.isDisposed()) {

           if (!display.readAndDispatch()) display.sleep();

        }

        if (dogImage != null) {

           dogImage.dispose();

        }

    }



}