Scala Swing圖像

Question

如何在Scala Swing組件中加載和顯示圖像？

Answer 1

我通常使用的標籤與ImageIcon的爲......像：

val label = new Label { 
    icon = new ImageIcon("path to the image file") 
} 

Answer 2

這裏是擴展Scala的Panel

import swing._                 

import java.awt.image.BufferedImage           
import java.io.File               
import javax.imageio.ImageIO             

class ImagePanel extends Panel             
{                    
    private var _imagePath = ""             
    private var bufferedImage:BufferedImage = null        

    def imagePath = _imagePath             

    def imagePath_=(value:String)            
    {                   
    _imagePath = value               
    bufferedImage = ImageIO.read(new File(_imagePath))       
    }                   


    override def paintComponent(g:Graphics2D) =         
    {                   
    if (null != bufferedImage) g.drawImage(bufferedImage, 0, 0, null)   
    }                   
}                    

object ImagePanel                
{                    
    def apply() = new ImagePanel()            
} 

使用的ImagePanel的實現：

object ImagePanelDemo extends SimpleSwingApplication 
{ 

    def top = new MainFrame { 
    title = "Image Panel Demo" 

    contents = new ImagePanel 
    { 
     imagePath = ("../testImage.jpg") 
    } 
    } 
}