[7315] | 1 | package org.greenstone.gatherer.feedback;
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| 2 |
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| 3 | import java.awt.*;
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| 4 | import java.applet.Applet;
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| 5 | import java.awt.image.*;
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| 6 | import java.awt.event.WindowEvent;
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| 7 | import java.awt.event.WindowListener;
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| 8 | import java.awt.event.WindowAdapter;
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| 9 | import java.awt.event.*;
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| 10 | import java.awt.image.BufferedImage;
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| 11 | import java.awt.image.DataBuffer;
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| 12 | import java.awt.geom.GeneralPath;
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| 13 | import java.io.*;
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| 14 | import javax.imageio.*;
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| 15 | import javax.swing.*;
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| 16 | import com.sun.image.codec.jpeg.*;
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| 17 | import java.awt.geom.*;
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| 18 |
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| 19 | /**
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| 20 | * This class can take screen shot of the whole screen size or screen shot of a specified
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| 21 | * rectangle only.
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| 22 | * @author Veronica Liesaputra
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| 23 | */
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| 24 | public class ScreenShot
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| 25 | {
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| 26 | /**
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| 27 | * This is the buffered image that hold the screen shot.
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| 28 | */
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| 29 | private BufferedImage img;
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| 30 |
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| 31 | /**
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| 32 | * The dimension of the whole screen size.
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| 33 | */
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| 34 | private final static Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
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| 35 |
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| 36 | /**
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| 37 | * Rectangle with a dimension of a whole screen size.
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| 38 | */
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| 39 | private Rectangle mRect = new Rectangle(dim);
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| 40 |
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| 41 | /**
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| 42 | * The desired width of the image.
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| 43 | */
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| 44 | private int iw;
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| 45 |
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| 46 | /**
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| 47 | * The desired height of the image.
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| 48 | */
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| 49 | private int ih;
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| 50 |
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| 51 | /**
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| 52 | * BufferedImage that hold the screen shot image with the desired height and width.
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| 53 | */
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| 54 | private BufferedImage bi;
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| 55 |
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| 56 | /**
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| 57 | * This is the robot that allows to take screen shot.
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| 58 | */
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| 59 | private Robot mRobot;
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| 60 |
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| 61 | /**
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| 62 | * This constructor will setup the robot to alow taking a screen shot.
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| 63 | */
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| 64 | public ScreenShot ()
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| 65 | {
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| 66 | try
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| 67 | {
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| 68 | mRobot = new Robot();
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| 69 | iw = (int) (dim.getWidth() - 60);
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| 70 | ih = (int) (dim.getHeight() * 0.75) - 50;
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| 71 | }
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| 72 | catch (AWTException exp) {}
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| 73 | }
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| 74 |
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| 75 | /**
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| 76 | * This method will only take screen shot of the particular rectangle.
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| 77 | * @param rect is the specified rectangle that we want to take the screen shot of.
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| 78 | * @return the image taken.
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| 79 | */
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| 80 | //public byte[] getImageIcon (Rectangle rect)
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| 81 | public BufferedImage getImageIcon (Rectangle rect)
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| 82 | {
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| 83 | BufferedImage image;
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| 84 | image = null;
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| 85 |
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| 86 | //try
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| 87 | // {
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| 88 | img = mRobot.createScreenCapture(rect);
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| 89 |
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| 90 | int w,h;
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| 91 | boolean rescale;
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| 92 |
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| 93 | rescale = false;
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| 94 | w = rect.width;
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| 95 |
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| 96 | if (w >= iw)
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| 97 | {
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| 98 | w = iw - 50;
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| 99 | rescale = true;
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| 100 | }
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| 101 |
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| 102 | h = rect.height;
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| 103 |
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| 104 | if ( h >= ih)
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| 105 | {
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| 106 | h = ih - 50;
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| 107 | rescale = true;
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| 108 | }
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| 109 |
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| 110 | Graphics2D big;
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| 111 | big = null;
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| 112 |
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| 113 | if (rescale == true)
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| 114 | {
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| 115 | image = new BufferedImage(w,h, BufferedImage.TYPE_INT_RGB);
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| 116 | big = image.createGraphics();
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| 117 | big.drawImage(img.getScaledInstance(w,h,Image.SCALE_SMOOTH),0,0,null);
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| 118 | }
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| 119 | else
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| 120 | {
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| 121 | image = img;
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| 122 | }
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| 123 |
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| 124 |
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| 125 | /*ByteArrayOutputStream stream;
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| 126 | stream = new ByteArrayOutputStream();
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| 127 | ImageIO.write(image,"jpeg",stream);
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| 128 | byte[] bytes;
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| 129 | bytes = stream.toByteArray();*/
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| 130 |
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| 131 | if (big != null)
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| 132 | big.dispose();
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| 133 | //image = null;
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| 134 | //img = null;
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| 135 | ActionRecorderDialog.setSavefinish(true);
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| 136 | return image;
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| 137 | //return bytes;
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| 138 | // }
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| 139 | //catch(IOException ex) {ex.printStackTrace();}
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| 140 |
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| 141 | //return null;
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| 142 | }
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| 143 |
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| 144 | /**
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| 145 | * This method will only take screen shot of the particular rectangle and encode
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| 146 | * the image to its string representation.
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| 147 | * @param rect is the specified rectangle that we want to take the screen shot of.
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| 148 | * @return the string representation of the image taken.
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| 149 | */
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| 150 | public String getImage (Rectangle rect)
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| 151 | {
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| 152 | String txt;
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| 153 | txt = null;
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| 154 |
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| 155 | BufferedImage image;
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| 156 | image = null;
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| 157 |
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| 158 | try
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| 159 | {
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| 160 | img = mRobot.createScreenCapture(rect);
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| 161 |
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| 162 | int w,h;
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| 163 | boolean rescale;
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| 164 |
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| 165 | rescale = false;
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| 166 | w = rect.width;
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| 167 |
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| 168 | if (w >= iw)
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| 169 | {
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| 170 | w = iw - 50;
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| 171 | rescale = true;
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| 172 | }
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| 173 |
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| 174 | h = rect.height;
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| 175 |
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| 176 | if ( h >= ih)
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| 177 | {
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| 178 | h = ih - 50;
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| 179 | rescale = true;
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| 180 | }
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| 181 |
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| 182 | Graphics2D big;
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| 183 | big = null;
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| 184 |
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| 185 | if (rescale == true)
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| 186 | {
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| 187 | image = new BufferedImage(w,h, BufferedImage.TYPE_INT_RGB);
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| 188 | big = image.createGraphics();
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| 189 | big.drawImage(img.getScaledInstance(w,h,Image.SCALE_SMOOTH),0,0,null);
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| 190 | }
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| 191 | else
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| 192 | {
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| 193 | image = img;
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| 194 | }
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| 195 |
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| 196 | ByteArrayOutputStream stream;
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| 197 | stream = new ByteArrayOutputStream();
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| 198 | ImageIO.write(image,"gif",stream);
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| 199 | byte[] bytes;
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| 200 | bytes = stream.toByteArray();
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| 201 | txt = Base64.encodeBytes(bytes);
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| 202 |
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| 203 | bytes = null;
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| 204 | if (big != null)
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| 205 | big.dispose();
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| 206 | image = null;
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| 207 | img = null;
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| 208 | }
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| 209 | catch(IOException ex) {ex.printStackTrace();}
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| 210 |
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| 211 | ActionRecorderDialog.setSavefinish(true);
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| 212 |
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| 213 | return txt;
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| 214 | }
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| 215 |
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| 216 | /**
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| 217 | * This method will return the buffered image of the whole screen size screen shot
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| 218 | * with the desired width and height.
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| 219 | * @return the buffered image with the desired height and width.
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| 220 | */
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| 221 | public BufferedImage getBuffImage()
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| 222 | {
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| 223 | return bi;
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| 224 | }
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| 225 |
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| 226 | /**
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| 227 | * This method will take screen shot of the whole screen and resize it to the
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| 228 | * desired width and height.
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| 229 | */
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| 230 | public BufferedImage captureScreen()
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| 231 | {
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| 232 | img = mRobot.createScreenCapture(mRect);
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| 233 |
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| 234 | Graphics2D big;
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| 235 | bi = new BufferedImage(iw,ih, BufferedImage.TYPE_INT_RGB);
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| 236 | big = bi.createGraphics();
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| 237 | big.drawImage(img.getScaledInstance(iw,ih,Image.SCALE_SMOOTH),0,0,null);
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| 238 | big.dispose();
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| 239 | big = null;
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| 240 |
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| 241 | return bi;
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| 242 | }
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| 243 |
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| 244 | /**
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| 245 | * This method will return the desired width.
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| 246 | * @return the desired width.
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| 247 | */
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| 248 | public int getWidth()
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| 249 | {
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| 250 | return iw;
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| 251 | }
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| 252 |
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| 253 | /**
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| 254 | * This method will return the desired height.
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| 255 | * @return the desired height.
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| 256 | */
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| 257 | public int getHeight()
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| 258 | {
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| 259 | return ih;
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| 260 | }
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| 261 | }
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| 262 |
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