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annotate game/IDMButton.java @ 49:e6da5c71be28

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Add more code to IDM widgets, do preliminary work for integrating them.
author Matti Hamalainen <ccr@tnsp.org>
date Tue, 22 Feb 2011 10:52:08 +0200
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children 496e616ff09d
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1 /*
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2 * Ristipolku IDM button widget
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3 * (C) Copyright 2011 Matti 'ccr' Hämäläinen <ccr@tnsp.org>
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4 */
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5 package game;
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6
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7 import java.awt.*;
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8 import java.awt.event.*;
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9 import java.awt.image.*;
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10 import java.awt.geom.*;
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11 import javax.imageio.*;
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12 import java.io.*;
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13
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14
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15 public class IDMButton extends IDMWidget
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16 {
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17 enum State { FOCUSED, PRESSED, NORMAL }
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18 State state;
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19 static BufferedImage imgUp, imgPressed;
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20 Point pos;
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21 Font font;
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22 FontMetrics metrics;
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23 String text;
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24
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25 public IDMButton(Point pos, int keyCode, Font font, String text)
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26 {
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27 loadImages();
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28 this.pos = pos;
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29 this.font = font;
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30 this.keyCode = keyCode;
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31 this.text = text;
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32 state = State.NORMAL;
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33 }
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34
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35 public IDMButton(int x, int y, int keyCode, Font font, String text)
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36 {
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37 this(new Point(x, y), keyCode, font, text);
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38 }
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39
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40 public void move(Point pos)
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41 {
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42 this.pos = pos;
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43 }
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44
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45 public void move(int x, int y)
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46 {
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47 this.pos = new Point(x, y);
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48 }
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49
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50 private static void loadImages()
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51 {
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52 try
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53 {
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54 ResourceLoader res = new ResourceLoader("graphics/button1_up.png");
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55 imgUp = ImageIO.read(res.getStream());
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56
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57 res = new ResourceLoader("graphics/button1_down.png");
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58 imgPressed = ImageIO.read(res.getStream());
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59 }
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60 catch (IOException e)
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61 {
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62 System.out.print(e.getMessage());
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63 }
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64 }
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65
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66 public void paint(Graphics2D g)
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67 {
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68 BufferedImage img;
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69 int xoffs, yoffs;
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70
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71 if (state == State.PRESSED)
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72 {
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73 img = imgPressed;
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74 xoffs = yoffs = 15;
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75 }
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76 else
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77 {
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78 xoffs = yoffs = 0;
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79 img = imgUp;
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80 }
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81
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82 if (metrics == null)
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83 metrics = g.getFontMetrics(font);
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84
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85 int textWidth = metrics.stringWidth(text);
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86 g.drawImage(img, pos.x + xoffs, pos.y + yoffs, null);
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87
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88 g.setFont(font);
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89 g.setPaint(Color.black);
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90 g.drawString(text,
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91 pos.x + xoffs + (img.getWidth() - textWidth) / 2,
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92 pos.y + yoffs + (img.getHeight() - metrics.getHeight() / 2) / 2);
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93 }
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94
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95 public boolean contains(Point where)
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96 {
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97 return (where.x >= pos.x && where.y >= pos.y &&
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98 where.x < pos.x + imgUp.getWidth() &&
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99 where.y < pos.y + imgUp.getHeight());
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100 }
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101
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102 public void mousePressed(MouseEvent e)
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103 {
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104 state = State.PRESSED;
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105 }
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106
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107 public void mouseReleased(MouseEvent e)
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108 {
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109 super.mouseReleased(e);
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110 state = State.NORMAL;
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111 }
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112
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113 public void clicked()
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114 {
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115 }
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116 }