groupframe.java

Visual J++ 6.0中读取图像的灰度与进行灰度变换。

import java.awt.*;

public class GroupFrame 
{
	int x,y,width,height;
	Font font;
	
	public GroupFrame(int x,int y,int width,int height)
	{
		this.x = x;
		this.y = y;
		this.width = width;
		this.height = height;
		font = new Font("TimesRoman",Font.PLAIN ,12);
	}
	
	public void setGroupFrameFont(Font font)
	{
		this.font = font;
	}
	
	public Font getGroupFrameFont()
	{
		return this.font;
	}
	
	public void draw(Graphics g,String stringTitle)
	{
		Font fontOld = g.getFont();
		g.setFont(font);
		
		
				
		FontMetrics fontMetrics = g.getFontMetrics();
		int fontHeight = fontMetrics.getHeight();
		int strWidth = fontMetrics.stringWidth(stringTitle);
		
		
		if(width < strWidth + 13) width = strWidth + 20;
		
		Color colorOld = g.getColor();
		g.setColor(Color.gray);
		g.drawLine(x,y,x + 7,y);
		g.drawLine(x + strWidth + 13,y,x + width - 1,y);
		
		g.drawLine(x + width - 1,y + 1,x + width - 1,y + height -1);
		g.drawLine(x + width - 1,y + height -1,x,y + height -1);
		g.drawLine(x,y + height -1,x,y + 1);
		
		g.setColor(Color.white);
		g.drawLine(x + 1,y + 1,x + 7,y + 1);
		g.drawLine(x + strWidth + 13,y + 1,x + width - 2,y + 1);
		
		g.drawLine(x + width,y,x + width,y + height);
		g.drawLine(x + width - 1,y + height,x,y + height);
		g.drawLine(x + 1,y + height - 2,x + 1,y + 1);
		
		g.setColor(Color.black );
		g.drawString(stringTitle,x + 10,y + fontHeight / 2 - 3);
		
		g.setColor(colorOld);
		g.setFont(fontOld);
		
		
		
	}
	
	public void draw(Graphics g)
	{
					
		
		
				
		Color colorOld = g.getColor();
		
		g.setColor(Color.gray);
		g.drawLine(x,y,x + width - 1,y);
		g.drawLine(x + width - 1,y + 1,x + width - 1,y + height -1);
		g.drawLine(x + width - 1,y + height -1,x,y + height -1);
		g.drawLine(x,y + height -1,x,y + 1);
		
		g.setColor(Color.white);
		g.drawLine(x + 1,y + 1,x + width - 2,y + 1);
		g.drawLine(x + width,y,x + width,y + height);
		g.drawLine(x + width - 1,y + height,x,y + height);
		g.drawLine(x + 1,y + height - 2,x + 1,y + 1);
		
		g.setColor(Color.black );
		
		
		g.setColor(colorOld);
	}
	
	
	
	
}