放飛思想

作者: beauty9235  鏈接：http://beauty9235.javaeye.com/blog/229627  發表時間: 2008年07月23日

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import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class DogShowRegistrationWindow {
	/*
	 * 參考文章
	 * http://www.eclipse.org/articles/article.php?file=Article-Understanding-Layouts/index.html
	 * http://www.ibm.com/developerworks/cn/linux/opensource/os-ecgui1/index.html
	 * http://www.ibm.com/developerworks/cn/linux/opensource/os-ecgui2/index.html
	 * http://www.ibm.com/developerworks/cn/linux/opensource/os-ecgui3/index.html
	 * http://www-128.ibm.com/developerworks/cn/opensource/os-swingswt/
	 * http://www.tkk7.com/fortune/archive/2006/03/09/34463.html
	 */	
	Image dogImage;
	Text dogNameText;
	Combo dogBreedCombo;
	Canvas dogPhoto;
	List categories;
	Text nameText;
	Text phoneText;

	public static void main(String[] args) {
		Display display = new Display();
		Shell shell = new DogShowRegistrationWindow().createShell(display);
		shell.open();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch())
				display.sleep();
		}
	}
	
	public Shell createShell(final Display display) {
		final Shell shell = new Shell(display);//通用窗口 
		FormLayout layout = new FormLayout();//布局管理器 
		layout.marginWidth = 5;
		layout.marginHeight = 5;
		shell.setLayout(layout);
		shell.setText("Dog Show Entry");
	    //****************************定義布局所要用的資源開始****************************
		//定義dog name標簽
		Label dogName = new Label(shell, SWT.NONE);//顯示靜態文本 
		dogName.setText("Dog's Name:");
		//定義dog name的文本輸入框
		dogNameText = new Text(shell, SWT.SINGLE | SWT.BORDER);//文本輸入 
		//定義dog greed標簽
		Label dogBreed = new Label(shell, SWT.NONE);
		dogBreed.setText("Breed:");
		//定義一個dog greed多選框
		dogBreedCombo = new Combo(shell, SWT.NONE);
		dogBreedCombo.setItems(new String[] { "Collie", "Pitbull", "Poodle","Scottie", "Black Lab" });//從一個下拉列表中選擇
		//定義photo標簽
		Label photo = new Label(shell, SWT.NONE);
		photo.setText("Photo:");
		//定義photo顯示域
		dogPhoto = new Canvas(shell, SWT.BORDER);//繪圖區域；可能用于定制控件 
		//定義Photo Browse按鈕
		Button browse = new Button(shell, SWT.PUSH);
		browse.setText("Browse...");
		//定義Photo Delete按鈕
		Button delete = new Button(shell, SWT.PUSH);//簡單按下具有文本的按鈕 
		delete.setText("Delete");
		//定義分類標簽
		Label cats = new Label(shell, SWT.NONE);
		cats.setText("Categories");
		//定義分類List
		categories = new List(shell, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);//從條目列表中進行選擇 
		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" });
		//定義一個組
		Group ownerInfo = new Group(shell, SWT.NONE);//其他控件的有邊界和標題的通用容器 
		ownerInfo.setText("Owner Info");
		FormLayout ownerLayout = new FormLayout();//布局管理器 
		ownerLayout.marginWidth = 5;
		ownerLayout.marginHeight = 5;
		ownerInfo.setLayout(ownerLayout);
		
		//定義Enter按鈕
		Button enter = new Button(shell, SWT.PUSH);
		enter.setText("Enter");
		//****************************定義布局所要用的資源結束****************************
		FormData data = new FormData();
		data.top = new FormAttachment(dogNameText, 0, SWT.CENTER);
		dogName.setLayoutData(data);//定義dogName與dogNameText的中心位置對齊
		
		data = new FormData();
		data.left = new FormAttachment(dogName, 5);
		data.right = new FormAttachment(100, 0);
		dogNameText.setLayoutData(data);//定義dogNameText左邊距dogName5個點數的偏移  右邊100%填充
		
		data = new FormData();
		data.top = new FormAttachment(dogBreedCombo, 0, SWT.CENTER);
		dogBreed.setLayoutData(data);
		//定義dogBreed項部距dogBreedCombo 0個點數的偏移 與dogBreedCombo標簽的中心位置對齊 
		
		data = new FormData();
		data.top = new FormAttachment(dogNameText, 5);
		data.left = new FormAttachment(dogNameText, 0, SWT.LEFT);
		data.right = new FormAttachment(categories, -5);
		dogBreedCombo.setLayoutData(data);
		//定義dogBreedCombo項部距dogNameText 5個點數的偏移
		//定義dogBreedCombo左邊與 dogNameText的左邊對齊
		//定義dogBreedCombo右邊距 categories左邊5個點數的偏移
		
		data = new FormData(80, 80);
		data.top = new FormAttachment(dogBreedCombo, 5);
		data.left = new FormAttachment(dogNameText, 0, SWT.LEFT);
		data.right = new FormAttachment(categories, -5);
		data.bottom = new FormAttachment(ownerInfo, -5);
		dogPhoto.setLayoutData(data);
		//定義dogPhoto大小為80X80
		//定義dogPhoto頂邊與dogBreedCombo底邊點數的偏移
		//定義dogPhoto左邊與dogNameText左邊對齊
		//定義dogPhoto右邊距categories 5個點數的偏移
		//定義dogPhoto底邊距ownerInfo 5個點數的偏移
		dogPhoto.addPaintListener(new PaintListener() {
			public void paintControl(final PaintEvent event) {
				if (dogImage != null) {
					event.gc.drawImage(dogImage, 0, 0);
				}
			}
		});
		
		data = new FormData();
		data.top = new FormAttachment(dogPhoto,0, SWT.TOP);
		photo.setLayoutData(data);
		//定義photo頂邊與 dogPhoto的頂邊對齊
		
		data = new FormData();
		data.top = new FormAttachment(photo, 5);
		data.right = new FormAttachment(dogPhoto, -5);
		browse.setLayoutData(data);
		//定義photo頂邊距 photo 5個點數的偏移
		//定義photo右邊距 dogPhoto 5個點數的偏移
		browse.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent event) {
				String fileName = new FileDialog(shell).open();//用來顯示一個文件對話
				if (fileName != null) {
					dogImage = new Image(display, fileName);
				}
			}
		});
		
		data = new FormData();
		data.top = new FormAttachment(browse, 5);
		data.left = new FormAttachment(browse, 0, SWT.LEFT);
		data.right = new FormAttachment(dogPhoto, -5);
		delete.setLayoutData(data);
		//定義delete頂邊距 browse 5個點數的偏移
		//定義delete左邊與 browse 左邊對齊
		//定義delete右邊距 dogPhoto 5個點數的偏移
		delete.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent event) {
				if (dogImage != null) {
					dogImage.dispose();
					dogImage = null;
					dogPhoto.redraw();
				}
			}
		});
		
		data = new FormData(90, 140);
		data.top = new FormAttachment(dogPhoto, 0, SWT.TOP);
		data.right = new FormAttachment(100, 0);
		data.bottom = new FormAttachment(enter, -5);
		categories.setLayoutData(data);
		//定義categories頂邊與 dogPhoto的頂邊對齊
		//定義categories右邊100% 填充
		//定義categories底邊距底邊父組件 5個點數的偏移 
		
		data = new FormData();
		data.bottom = new FormAttachment(categories, -5);
		data.left = new FormAttachment(categories, 0, SWT.CENTER);
		cats.setLayoutData(data);
		//定義cats底邊與 categories的底邊 5個點數的偏移
		//定義cats左邊與 categories 的中心對齊
		
		data = new FormData();
		data.right = new FormAttachment(100, 0);
		data.bottom = new FormAttachment(100, 0);
		enter.setLayoutData(data);
		enter.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent event) {
				System.out.println("\nDog Name: " + dogNameText.getText());
				System.out.println("Dog Breed: " + dogBreedCombo.getText());
				System.out.println("Owner Name: " + nameText.getText());
				System.out.println("Owner Phone: " + phoneText.getText());
				System.out.println("Categories:");
				String cats[] = categories.getSelection();
				for (int i = 0; i < cats.length; i++) {
					System.out.println("\t" + cats[i]);
				}
			}
		});
		
		data = new FormData();
		data.bottom = new FormAttachment(enter, -5);
		data.left = new FormAttachment(0, 0);
		data.right = new FormAttachment(categories, -5);
		ownerInfo.setLayoutData(data);
		
		Label name = new Label(ownerInfo, SWT.NULL);
		name.setText("Name:");
		
		Label phone = new Label(ownerInfo, SWT.PUSH);
		phone.setText("Phone:");
		
		nameText = new Text(ownerInfo, SWT.SINGLE | SWT.BORDER);
		phoneText = new Text(ownerInfo, SWT.SINGLE | SWT.BORDER);
		
		data = new FormData();
		data.top = new FormAttachment(nameText, 0, SWT.CENTER);
		name.setLayoutData(data);
		
		data = new FormData();
		data.top = new FormAttachment(phoneText, 0, SWT.CENTER);
		phone.setLayoutData(data);
		
		data = new FormData();
		data.left = new FormAttachment(phone, 5);
		data.right = new FormAttachment(100, 0);
		nameText.setLayoutData(data);
		
		data = new FormData();
		data.left = new FormAttachment(nameText, 0, SWT.LEFT);
		data.right = new FormAttachment(100, 0);
		data.top = new FormAttachment(55, 0);
		phoneText.setLayoutData(data);
		
		shell.pack();
		
		return shell;
	}	
}

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