1 | package fr.mael.jiwigo.ui.browser; |
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2 | |
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3 | import java.awt.Dimension; |
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4 | import java.awt.Graphics; |
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5 | import java.awt.Graphics2D; |
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6 | import java.awt.RenderingHints; |
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7 | import java.awt.event.MouseEvent; |
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8 | import java.awt.event.MouseListener; |
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9 | import java.awt.event.MouseMotionListener; |
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10 | import java.awt.event.MouseWheelEvent; |
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11 | import java.awt.event.MouseWheelListener; |
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12 | import java.awt.geom.AffineTransform; |
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13 | import java.awt.image.BufferedImage; |
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14 | import java.awt.print.PageFormat; |
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15 | import java.awt.print.Printable; |
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16 | import java.awt.print.PrinterException; |
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17 | import java.util.Hashtable; |
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18 | |
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19 | import javax.swing.JLabel; |
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20 | import javax.swing.JOptionPane; |
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21 | import javax.swing.JPanel; |
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22 | import javax.swing.JSlider; |
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23 | import javax.swing.event.ChangeEvent; |
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24 | import javax.swing.event.ChangeListener; |
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25 | |
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26 | import fr.mael.jiwigo.transverse.util.ImagesUtil; |
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27 | import fr.mael.jiwigo.transverse.util.Messages; |
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28 | |
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29 | /** |
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30 | Copyright (c) 2010, Mael |
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31 | All rights reserved. |
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32 | |
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33 | Redistribution and use in source and binary forms, with or without |
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34 | modification, are permitted provided that the following conditions are met: |
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35 | * Redistributions of source code must retain the above copyright |
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36 | notice, this list of conditions and the following disclaimer. |
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37 | * Redistributions in binary form must reproduce the above copyright |
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38 | notice, this list of conditions and the following disclaimer in the |
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39 | documentation and/or other materials provided with the distribution. |
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40 | * Neither the name of jiwigo nor the |
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41 | names of its contributors may be used to endorse or promote products |
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42 | derived from this software without specific prior written permission. |
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43 | |
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44 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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45 | ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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46 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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47 | DISCLAIMED. IN NO EVENT SHALL Mael BE LIABLE FOR ANY |
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48 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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49 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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50 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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51 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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52 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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53 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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54 | |
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55 | * Panel qui affiche une image |
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56 | * @author mael |
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57 | * |
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58 | */ |
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59 | public class BrowserImagePanel extends JPanel implements MouseWheelListener, Printable, MouseMotionListener, |
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60 | MouseListener { |
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61 | private BufferedImage image; |
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62 | private double scale = 1.0; |
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63 | boolean flipH = false; |
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64 | boolean flipV = false; |
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65 | private int valueSlider = 16; |
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66 | private boolean clicked = false; |
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67 | private int xTopPosition; |
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68 | private int yTopPosition; |
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69 | private int xDragPosition; |
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70 | private int yDragPosition; |
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71 | private boolean drawSelection = false; |
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72 | |
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73 | /** |
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74 | * Constructeur |
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75 | * @param image |
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76 | */ |
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77 | public BrowserImagePanel(BufferedImage image) { |
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78 | this.image = image; |
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79 | this.addMouseWheelListener(this); |
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80 | this.addMouseMotionListener(this); |
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81 | this.addMouseListener(this); |
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82 | } |
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83 | |
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84 | /* (non-Javadoc) |
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85 | * @see javax.swing.JComponent#paintComponent(java.awt.Graphics) |
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86 | */ |
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87 | protected void paintComponent(Graphics g) { |
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88 | super.paintComponent(g); |
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89 | Graphics2D g2 = (Graphics2D) g; |
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90 | g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC); |
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91 | double x = (getWidth() - scale * image.getWidth()) / 2; |
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92 | double y = (getHeight() - scale * image.getHeight()) / 2; |
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93 | AffineTransform at = AffineTransform.getTranslateInstance(x, y); |
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94 | if (flipV && !flipH) { |
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95 | at.scale(scale, -scale); |
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96 | at.translate(0, -getHeight() / 2); |
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97 | } else if (flipH && !flipV) { |
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98 | at.scale(-scale, scale); |
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99 | at.translate(-getWidth() / 2, 0); |
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100 | } else if (flipH && flipV) { |
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101 | at.scale(-scale, -scale); |
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102 | at.translate(-getWidth() / 2, -getHeight() / 2); |
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103 | } else { |
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104 | at.scale(scale, scale); |
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105 | } |
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106 | g2.drawRenderedImage(image, at); |
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107 | if (drawSelection) { |
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108 | g2.drawRect(xTopPosition, yTopPosition, xDragPosition - xTopPosition, yDragPosition - yTopPosition); |
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109 | } |
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110 | |
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111 | } |
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112 | |
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113 | /* (non-Javadoc) |
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114 | * @see javax.swing.JComponent#getPreferredSize() |
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115 | */ |
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116 | public Dimension getPreferredSize() { |
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117 | int w = (int) (scale * image.getWidth()); |
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118 | int h = (int) (scale * image.getHeight()); |
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119 | return new Dimension(w, h); |
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120 | } |
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121 | |
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122 | public void rogner() { |
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123 | if (scale == 1.0) { |
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124 | //récupération des dimensions de l'image |
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125 | Double width = getSize().getWidth(); |
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126 | Double height = getSize().getHeight(); |
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127 | //recuperation du coin haut gauche de l'image |
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128 | Double xZeroImage = ((width - image.getWidth()) / 2); |
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129 | Double yZeroImage = ((height - image.getHeight()) / 2); |
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130 | //les positions du premier clic |
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131 | //sur l'image. Les positions récupérées précédemment étaient |
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132 | //les positions sur le panel, il faut donc calculer les positions sur l'image |
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133 | int positionX, positionY; |
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134 | //largeur et longueur du rognage sur l'image |
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135 | int largeur, longueur; |
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136 | //si jamais la sélection commence avant le début de l'image |
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137 | //en x, on prend comme position 0, sinon, on calcule la position |
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138 | //du clic selon le calcul position sur l'image = position sur le panel - position du x de l'image |
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139 | if (xTopPosition - xZeroImage.intValue() < 0) { |
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140 | positionX = 0; |
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141 | } else { |
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142 | positionX = xTopPosition - xZeroImage.intValue(); |
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143 | } |
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144 | //si jamais la sélection commence avant le début de l'image |
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145 | //en y, on prend comme position 0, sinon, on calcule la position |
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146 | //du clic selon le calcul position sur l'image = position sur le panel - position du y de l'image |
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147 | if (yTopPosition - yZeroImage.intValue() < 0) { |
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148 | positionY = 0; |
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149 | } else { |
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150 | positionY = yTopPosition - yZeroImage.intValue(); |
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151 | } |
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152 | //on calcule la largeur |
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153 | largeur = xDragPosition - xTopPosition; |
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154 | //si ça dépasse de l'image |
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155 | if ((positionX + largeur) > image.getWidth()) { |
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156 | //on recalcule la largeur |
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157 | largeur = image.getWidth() - positionX; |
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158 | } |
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159 | //on calcule la longueur |
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160 | longueur = yDragPosition - yTopPosition; |
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161 | //si ça dépasse en hauteur |
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162 | if ((positionY + longueur) > image.getHeight()) { |
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163 | //on recalcule la hauteur |
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164 | longueur = image.getHeight() - positionY; |
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165 | } |
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166 | //recuperation de l'image coupée |
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167 | image = image.getSubimage(positionX, positionY, largeur, longueur); |
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168 | repaint(); |
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169 | revalidate(); |
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170 | drawSelection = false; |
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171 | } else { |
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172 | JOptionPane.showMessageDialog(this, Messages.getMessage("clippingError"), Messages.getMessage("info"), |
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173 | JOptionPane.INFORMATION_MESSAGE); |
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174 | } |
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175 | } |
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176 | |
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177 | /** |
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178 | * Récupération du slider |
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179 | * @return le slider |
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180 | */ |
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181 | public JSlider getSlider() { |
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182 | int min = 1, max = 36, inc = 10; |
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183 | final JSlider slider = new JSlider(min, max, 16); |
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184 | slider.setMajorTickSpacing(5); |
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185 | slider.setMinorTickSpacing(1); |
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186 | slider.setPaintTicks(true); |
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187 | slider.setSnapToTicks(true); |
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188 | slider.setLabelTable(getLabelTable(min, max, inc)); |
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189 | slider.setPaintLabels(true); |
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190 | slider.addChangeListener(new ChangeListener() { |
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191 | public void stateChanged(ChangeEvent e) { |
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192 | int value = slider.getValue(); |
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193 | valueSlider = value; |
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194 | scale = (value + 4) / 20.0; |
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195 | revalidate(); |
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196 | repaint(); |
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197 | }; |
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198 | }); |
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199 | return slider; |
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200 | } |
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201 | |
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202 | public void zoomIn() { |
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203 | |
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204 | scale = (++valueSlider + 4) / 20.0; |
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205 | revalidate(); |
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206 | repaint(); |
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207 | } |
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208 | |
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209 | public void zoomOut() { |
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210 | if (scale > 0) { |
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211 | scale = (--valueSlider + 4) / 20.0; |
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212 | revalidate(); |
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213 | repaint(); |
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214 | } |
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215 | } |
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216 | |
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217 | public void zoomNormal() { |
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218 | |
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219 | scale = 1.0; |
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220 | revalidate(); |
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221 | repaint(); |
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222 | } |
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223 | |
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224 | /** |
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225 | * Label du slider |
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226 | * @param min |
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227 | * @param max |
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228 | * @param inc |
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229 | * @return |
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230 | */ |
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231 | private Hashtable getLabelTable(int min, int max, int inc) { |
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232 | Hashtable<Integer, JLabel> table = new Hashtable<Integer, JLabel>(); |
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233 | for (int j = min; j <= max; j += inc) { |
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234 | String s = String.format("%.2f", (j + 4) / 20.0); |
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235 | table.put(Integer.valueOf(j), new JLabel(s)); |
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236 | } |
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237 | return table; |
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238 | } |
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239 | |
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240 | /** |
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241 | * Rotation vers la droite |
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242 | */ |
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243 | public void rotationDroite() { |
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244 | setImage(ImagesUtil.rotate(image, Math.PI / 2)); |
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245 | } |
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246 | |
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247 | /** |
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248 | * Rotation vers la gauche |
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249 | */ |
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250 | public void rotationGauche() { |
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251 | setImage(ImagesUtil.rotate(image, -Math.PI / 2)); |
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252 | } |
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253 | |
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254 | /** |
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255 | * @return the image |
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256 | */ |
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257 | public BufferedImage getImage() { |
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258 | return image; |
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259 | } |
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260 | |
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261 | /** |
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262 | * @param image the image to set |
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263 | */ |
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264 | public void setImage(BufferedImage image) { |
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265 | this.image = image; |
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266 | revalidate(); |
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267 | repaint(); |
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268 | } |
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269 | |
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270 | @Override |
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271 | public void mouseWheelMoved(MouseWheelEvent arg0) { |
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272 | int notches = arg0.getWheelRotation(); |
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273 | String message; |
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274 | String newline = "\n"; |
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275 | if (notches < 0) { |
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276 | zoomIn(); |
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277 | |
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278 | } else { |
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279 | zoomOut(); |
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280 | } |
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281 | |
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282 | } |
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283 | |
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284 | @Override |
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285 | public int print(Graphics arg0, PageFormat arg1, int arg2) throws PrinterException { |
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286 | if (arg2 != 0) |
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287 | return NO_SUCH_PAGE; |
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288 | Graphics2D g2 = (Graphics2D) arg0; |
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289 | g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC); |
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290 | double x = (getWidth() - scale * image.getWidth()) / 2; |
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291 | double y = (getHeight() - scale * image.getHeight()) / 2; |
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292 | AffineTransform at = AffineTransform.getTranslateInstance(x, y); |
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293 | if (flipV && !flipH) { |
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294 | at.scale(scale, -scale); |
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295 | at.translate(0, -getHeight() / 2); |
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296 | } else if (flipH && !flipV) { |
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297 | at.scale(-scale, scale); |
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298 | at.translate(-getWidth() / 2, 0); |
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299 | } else if (flipH && flipV) { |
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300 | at.scale(-scale, -scale); |
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301 | at.translate(-getWidth() / 2, -getHeight() / 2); |
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302 | } else { |
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303 | at.scale(scale, scale); |
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304 | } |
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305 | |
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306 | g2.drawRenderedImage(image, at); |
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307 | return PAGE_EXISTS; |
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308 | } |
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309 | |
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310 | @Override |
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311 | public void mouseDragged(MouseEvent arg0) { |
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312 | if (clicked) { |
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313 | xDragPosition = arg0.getX(); |
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314 | yDragPosition = arg0.getY(); |
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315 | repaint(); |
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316 | revalidate(); |
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317 | } |
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318 | } |
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319 | |
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320 | @Override |
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321 | public void mouseMoved(MouseEvent arg0) { |
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322 | } |
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323 | |
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324 | public void mouseClicked(MouseEvent arg0) { |
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325 | } |
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326 | |
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327 | public void mouseEntered(MouseEvent arg0) { |
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328 | } |
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329 | |
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330 | public void mouseExited(MouseEvent arg0) { |
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331 | } |
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332 | |
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333 | public void mousePressed(MouseEvent arg0) { |
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334 | clicked = true; |
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335 | xTopPosition = arg0.getX(); |
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336 | yTopPosition = arg0.getY(); |
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337 | drawSelection = true; |
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338 | } |
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339 | |
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340 | public void mouseReleased(MouseEvent arg0) { |
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341 | clicked = false; |
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342 | } |
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343 | |
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344 | } |
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