buttonpane.java

java实现的简单的画图软件

package com.catking.left;
import com.catking.mainFrm.*;

import org.eclipse.swt.widgets.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.*;


public class ButtonPane extends Composite implements DrawConstants{

	private Button[][] buttons;
	private int currentAction = PEN;
	private static final String[][] tips = {
		{"任意形状的裁剪","选定"},
		{"橡皮","用颜色填充"},
		{"取色","放大镜"},
		{"铅笔","刷子"},
		{"喷枪","文字"},
		{"直线","曲线"},
		{"矩形","多边形"},
		{"椭圆","圆角椭圆"}
	};

	public ButtonPane(Composite shell){
		super(shell, SWT.BORDER);
		GridLayout layout = new GridLayout(2, true);
		this.buttons = new Button[8][2];

		this.setLayout(layout);

		for(int j=1; j<= 8; j++){
			for(int i=1; i<=2; i++){

				this.buttons[j-1][i-1] = new Button(this, SWT.PUSH);
				this.buttons[j-1][i-1].setImage(
						SourceManager.buttonsMap.get(j+String.valueOf(i)));
				this.buttons[j-1][i-1].setToolTipText(tips[j-1][i-1]);
			}
		}
		this.setSize(90, 648);

		this.buttons[3][0].setFocus();
		//铅笔
		this.buttons[3][0].addSelectionListener(new SelectionAdapter(){
			public void widgetSelected(SelectionEvent e) {
				currentAction = PEN;
			}
		});
		//直线
		this.buttons[5][0].addSelectionListener(new SelectionAdapter(){
			public void widgetSelected(SelectionEvent e) {
				currentAction = LINE;
			}
		});
		//矩形
		this.buttons[6][0].addSelectionListener(new SelectionAdapter(){
			public void widgetSelected(SelectionEvent e) {
				currentAction = RECT;
			}
		});
		//椭圆
		this.buttons[7][0].addSelectionListener(new SelectionAdapter(){
			public void widgetSelected(SelectionEvent e) {
				currentAction = ELLIPSE;
			}
		});
		this.buttons[1][1].addSelectionListener(new SelectionAdapter(){
			public void widgetSelected(SelectionEvent e) {
				currentAction = FILL;
			}
		});

	}
	public int getAction(){

		return this.currentAction;
	}

}