import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;


public class Display extends Frame {

	Image image = null;

	public Display (String title, double[][] dataIn) {

		double[][] temp2DArray = rerangeArray(0,255,dataIn);
		double[] temp1DArray = get1DArray(temp2DArray);
		int[] temp1DIntArray = get1DIntArray(temp1DArray);
		image = getImage(temp1DIntArray, dataIn[0].length, dataIn.length);
		this.setSize(dataIn[0].length, dataIn.length);
		this.setTitle(title);
		
		addWindowListener(new WindowAdapter(){
			public void windowClosing(WindowEvent e) {
				((Frame)e.getSource()).dispose();
			}
		});

		
		this.setVisible(true);
	
	}
	
	public void paint (Graphics gc) {

		gc.drawImage(image,0,0,this);
	
	}
	
	
	double[][] rerangeArray (double newMinimum, double newMaximum, double[][] dataIn) { 

		double currentMaximum = getMaximum(dataIn);
		double currentMinimum = getMinimum(dataIn);

		double[][] tempArray = new double[dataIn.length][dataIn[0].length];

		for (int i = 0; i < dataIn.length; i++) {
			for (int j = 0; j < dataIn[i].length; j++) {
				tempArray[i][j] = dataIn[i][j];
				tempArray[i][j] = tempArray[i][j] - currentMinimum;
				if (tempArray[i][j] != 0) tempArray[i][j] = tempArray[i][j] / (currentMaximum - currentMinimum);
				tempArray[i][j] = tempArray[i][j] * (newMaximum - newMinimum);
				tempArray[i][j] = tempArray[i][j] + newMinimum;
			}
		}

		return tempArray;

	}
	
	
	double[] get1DArray (double[][] dataIn) {

		double[] tempArray = new double[dataIn.length * dataIn[0].length];
		
		for (int i = 0; i < dataIn.length; i++) {
			for (int j = 0; j < dataIn[i].length; j++) {
				tempArray[(i * dataIn[0].length) + j] = dataIn[i][j];
			}
		}
		
		return tempArray;

	}
	
	
	int[] get1DIntArray(double[] dataIn) {
	
		int[] tempArray = new int[dataIn.length];
	
		for (int i = 0; i < dataIn.length; i++) {
			tempArray[i] = (new Double(dataIn[i])).intValue();
		}
		
		return tempArray;
		
	}


	Image getImage(int[] uncompressed, int width, int height) {
	
		int[] compressed = new int [uncompressed.length];
	
		for (int i = 0; i < uncompressed.length; i++) {
		
			compressed[i] = (new Color(uncompressed[i],uncompressed[i],uncompressed[i])).getRGB(); 
		
		}
	
		MemoryImageSource mis = new MemoryImageSource(width, height, compressed, 0, width);
		return this.createImage(mis);
	
	}

	
	double getMaximum (double[][] dataIn) {
	
		double maximum = -1.0;
		
		for (int i = 0; i < dataIn.length; i++) {
			for (int j = 0; j < dataIn[i].length; j++) {
				if (dataIn[i][j] > maximum) maximum = dataIn[i][j];
			}
		}
		
		return maximum;
	}

		
		
	double getMinimum (double[][] dataIn) {
	
		double minimum = getMaximum(dataIn);
		
		for (int i = 0; i < dataIn.length; i++) {
			for (int j = 0; j < dataIn[i].length; j++) {
				if (dataIn[i][j] < minimum) minimum = dataIn[i][j];
			}
		}
		
		return minimum;
	}


}