1    //-------------------------------- 
2    //File:         DoubleArrayLog.java 
3    //Date:         03/29/99 
4    //Student id:   0424811 
5    //Student name: Jitendra Shiralkar 
6    //Compiled on:  JDK 1.2 
7    //-------------------------------- 
8    // 
9    //Class implemented: DoubleArrayLog 
10   //Derived from:      ArrayDialog 
11   //Uses:              MessageLog 
12   // 
13   //Description: 
14   //  The DoubleArrayLog class accepts only double values for the array elements. 
15   //A message Dialog is shown to the user if he/she has made error in input. 
16   // 
17   package ip.gui.dialog; 
18    
19   import ip.gui.frames.ConvolutionFrame; 
20    
21   import java.awt.*; 
22   import java.awt.event.ActionEvent; 
23   import java.awt.event.ActionListener; 
24    
25   public class DoubleArrayLog 
26           extends ArrayDialog 
27           implements ActionListener { 
28    
29       public DoubleArrayLog(ConvolutionFrame frame, String title, 
30                             String defaults[][], int row, int col, int fieldSize) { 
31           super(frame, title, defaults, row, col, fieldSize); 
32           cf = frame; 
33       } 
34    
35       ConvolutionFrame cf; 
36    
37       public void printUserInput() { 
38           double userInput[][] = getUserInputAsDouble(); 
39           System.out.println("The values set to the array elements are:"); 
40           System.out.println("*****************************************"); 
41           for (int i = 0; i < userInput.length; i++) { 
42               for (int j = 0; j < userInput[0].length; j++) { 
43                   System.out.print("" + userInput[i][j] + " "); 
44               } 
45               System.out.println(); 
46           } 
47       } 
48    
49       public void convolve() { 
50           float userInput[][] = getUserInputAsFloat(); 
51           cf.convolve(userInput); 
52       } 
53    
54       public float[][] getUserInputAsFloat() { 
55           double ud[][] = getUserInputAsDouble(); 
56           int w = ud.length; 
57           int h = ud[0].length; 
58           float uf[][] = new float[w][h]; 
59           for (int x = 0; x < w; x++) 
60               for (int y = 0; y < h; y++) 
61                   uf[x][y] = (float) ud[x][y]; 
62           return uf; 
63    
64       } 
65    
66       public double[][] getUserInputAsDouble() { 
67           String userInput[][] = super.getUserInput(); //calling the super class method getUserInput() 
68           double dui[][] = new double[userInput.length][userInput[0].length]; 
69           int i = 0, j = 0; 
70    
71           try { 
72               for (i = 0; i < userInput.length; i++) { 
73                   for (j = 0; j < userInput[0].length; j++) { 
74                       Double d = Double.valueOf(userInput[i][j]); 
75                       dui[i][j] = d.doubleValue(); 
76                   } 
77               } 
78           } catch (NumberFormatException e) { 
79               StringBuffer message = new StringBuffer(); 
80               message.append("Could not convert to double\n"); 
81               message.append("Row: " + (i + 1) + "Column: " + (j + 1) + "\n"); 
82               message.append("Value: " + e.getMessage()); 
83               ; 
84    
85               MessageLog m1 = new MessageLog("Input Error: Could not convert to Double", message.toString()); 
86           } 
87    
88           return dui; 
89       } 
90    
91       public void actionPerformed(ActionEvent e) { 
92           Button b = (Button) e.getSource(); 
93           if (b == super.cancelButton) { //if cancel button was pressed, exit 
94               setVisible(false); 
95               System.exit(0); 
96           } else 
97           //printUserInput(); 
98               convolve(); 
99       } 
100   
101  } 
102   
103  class MessageLog extends Dialog implements ActionListener { 
104      Button okButton = new Button("OK"); 
105      Panel buttonPanel = new Panel(); 
106      Label messageLabel = new Label(); 
107   
108      public MessageLog(String title, String message) { 
109          super(new Frame(), title, true);    //sets the MessageLog modal 
110          okButton.addActionListener(this); 
111          messageLabel.setText(message); 
112   
113          setLayout(new GridLayout(0, 1)); 
114          add(messageLabel); 
115          add(okButton); 
116          pack(); 
117          show(); 
118      } 
119   
120      public void actionPerformed(ActionEvent e) { 
121          if (e.getSource() == okButton) 
122              setVisible(false); 
123      } 
124  } 
125