1 files changed, 85 insertions, 0 deletions
diff --git a/labs/lab02_simpleRGB/ImageViewer.java b/labs/lab02_simpleRGB/ImageViewer.java
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+++ b/labs/lab02_simpleRGB/ImageViewer.java
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+import java.io.File;
+import java.io.IOException;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.image.BufferedImage;
+import java.awt.BorderLayout;
+import java.awt.Color;
+import java.awt.GridLayout;
+import javax.imageio.ImageIO;
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+
+public class ImageViewer
+{
+	public static void main(String[] args) throws IOException
+	{
+		File file = new File("pgh_640x480.jpg");
+		BufferedImage originalImage = ImageIO.read(file);
+		
+		int width = originalImage.getWidth();
+		int height = originalImage.getHeight();
+
+		final SimpleRGB[] rgb = new SimpleRGB[5];
+		rgb[0] = new SimpleRGB(width, height);
+		
+		for(int i = 0; i < height; i++)
+		{
+			for(int j = 0; j < width; j++)
+			{
+				Color c = new Color(originalImage.getRGB(j,i));
+				rgb[0].setRed(j, i, c.getRed());
+				rgb[0].setGreen(j, i, c.getGreen());
+				rgb[0].setBlue(j,  i, c.getBlue());
+			}
+		}
+		
+		rgb[1] = rgb[0].getRedImage();
+		rgb[2] = rgb[0].getGreenImage();
+		rgb[3] = rgb[0].getBlueImage();
+		rgb[4] = rgb[0].getGreyImage();
+		
+		final RGBComponent rgbc = new RGBComponent(rgb[0]);
+
+		JPanel buttonPanel = new JPanel();
+		buttonPanel.setLayout(new GridLayout(1,5));
+
+		JButton[] button = new JButton[5];
+		button[0] = new JButton("RGB");
+		button[1] = new JButton("Red");
+		button[2] = new JButton("Green");
+		button[3] = new JButton("Blue");
+		button[4] = new JButton("Greyscale");
+
+		class colorButtonListener implements ActionListener
+		{
+			private int index;
+			
+			public colorButtonListener(int anIndex)
+			{
+				index = anIndex;
+			}
+			
+			public void actionPerformed(ActionEvent arg0)
+			{
+				rgbc.setImage(rgb[index]);
+			}
+		}
+		
+		ActionListener[] cbl = new colorButtonListener[5];
+		for(int i = 0; i < 5; i++)
+		{
+			cbl[i] = new colorButtonListener(i);
+			button[i].addActionListener(cbl[i]);
+			buttonPanel.add(button[i]);
+		}
+		
+		JFrame frame = new JFrame("Image Viewer");
+		frame.setSize(642,534);
+		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		frame.add(rgbc);
+		frame.add(buttonPanel, BorderLayout.SOUTH);
+		frame.setVisible(true);
+	}
+}