Mercurial > hg > ristipolku

annotate game/IDMButton.java @ 138:9eb791e2fa17

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Optimize board updating logic, so that the old placed tiles need not to be redrawn from scratch on each screen update, as they do not change usually.
author Matti Hamalainen <ccr@tnsp.org>
date Fri, 25 Nov 2011 11:04:09 +0200
parents 4c0dec72e2f0
children d6d92845d6a2
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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 Font font;
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21 FontMetrics metrics;
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22 String text;
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23 boolean active;
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24
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25 public IDMButton(IDMPoint pos, int keyCode, Font font, String text)
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26 {
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27 super(pos);
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28 loadImages();
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29 setSize(imgUp.getWidth(), imgUp.getHeight());
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31 this.font = font;
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32 this.keyCode = keyCode;
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33 this.text = text;
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34
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35 state = State.NORMAL;
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36 active = false;
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37 }
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39 public IDMButton(float x, float y, int keyCode, Font font, String text)
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40 {
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41 this(new IDMPoint(x, y), keyCode, font, text);
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42 }
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43
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44 private static void loadImages()
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45 {
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46 if (imgUp != null && imgPressed != null)
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47 return;
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48
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49 try
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50 {
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51 ResourceLoader res = new ResourceLoader("graphics/button1_up.png");
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52 imgUp = ImageIO.read(res.getStream());
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53
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54 res = new ResourceLoader("graphics/button1_down.png");
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55 imgPressed = ImageIO.read(res.getStream());
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56 }
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57 catch (IOException e)
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58 {
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59 System.out.print(e.getMessage());
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60 }
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61 }
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62
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63 public void scale()
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64 {
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65 }
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67 public void paint(Graphics2D g)
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68 {
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69 BufferedImage img;
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70 int xoffs, yoffs;
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71
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72 if (state == State.PRESSED)
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73 {
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74 img = imgPressed;
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75 xoffs = yoffs = 5;
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76 }
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77 else
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78 {
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79 xoffs = yoffs = 0;
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80 img = imgUp;
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81 }
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82
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83 if (metrics == null)
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84 metrics = g.getFontMetrics(font);
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85
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86 int textWidth = metrics.stringWidth(text);
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87 g.drawImage(img, getScaledX() + xoffs, getScaledY() + yoffs, null);
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88
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89 g.setFont(font);
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90 g.setPaint(Color.black);
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91 g.drawString(text,
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92 getScaledX() + xoffs + (getScaledWidth() - textWidth) / 2,
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93 getScaledY() + yoffs + getScaledHeight() / 2);
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94 }
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96
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97 public boolean mousePressed(MouseEvent e)
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98 {
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99 state = State.PRESSED;
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100 active = true;
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101 return true;
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102 }
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103
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104 public boolean mouseReleased(MouseEvent e)
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105 {
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106 boolean oldActive = active;
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107 super.mouseReleased(e);
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108 state = State.NORMAL;
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109 active = false;
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110 return oldActive;
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111 }
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112
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113 public boolean mouseEntered(MouseEvent e)
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114 {
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115 if (active)
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116 {
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117 state = State.PRESSED;
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118 return true;
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119 }
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120 else
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121 return false;
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122 }
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123
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124 public boolean mouseExited(MouseEvent e)
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125 {
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126 if (active)
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127 {
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128 state = State.NORMAL;
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129 return true;
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130 }
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131 else
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132 return false;
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133 }
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134 }