1 | /*
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2 | * SVG Salamander
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3 | * Copyright (c) 2004, Mark McKay
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4 | * All rights reserved.
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5 | *
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6 | * Redistribution and use in source and binary forms, with or
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7 | * without modification, are permitted provided that the following
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8 | * conditions are met:
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9 | *
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10 | * - Redistributions of source code must retain the above
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11 | * copyright notice, this list of conditions and the following
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12 | * disclaimer.
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13 | * - Redistributions in binary form must reproduce the above
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14 | * copyright notice, this list of conditions and the following
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15 | * disclaimer in the documentation and/or other materials
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16 | * provided with the distribution.
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17 | *
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18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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22 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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23 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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25 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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27 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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29 | * OF THE POSSIBILITY OF SUCH DAMAGE.
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30 | *
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31 | * Mark McKay can be contacted at mark@kitfox.com. Salamander and other
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32 | * projects can be found at http://www.kitfox.com
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33 | *
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34 | * Created on April 21, 2005, 10:45 AM
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35 | */
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36 |
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37 | package com.kitfox.svg.app.beans;
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38 |
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39 | import com.kitfox.svg.*;
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40 | import java.awt.*;
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41 | import java.awt.geom.*;
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42 | import java.beans.*;
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43 | import java.net.*;
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44 | import javax.swing.*;
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45 |
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46 | /**
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47 | *
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48 | * @author kitfox
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49 | */
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50 | public class SVGIcon implements Icon
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51 | {
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52 | public static final long serialVersionUID = 1;
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53 |
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54 | private PropertyChangeSupport changes = new PropertyChangeSupport(this);
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55 |
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56 | SVGUniverse svgUniverse = SVGCache.getSVGUniverse();
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57 | public static final int INTERP_NEAREST_NEIGHBOR = 0;
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58 | public static final int INTERP_BILINEAR = 1;
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59 | public static final int INTERP_BICUBIC = 2;
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60 |
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61 | private boolean antiAlias;
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62 | private int interpolation = INTERP_NEAREST_NEIGHBOR;
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63 | private boolean clipToViewbox;
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64 |
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65 | // private String svgPath;
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66 | URI svgURI;
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67 |
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68 | private boolean scaleToFit;
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69 | AffineTransform scaleXform = new AffineTransform();
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70 |
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71 | // Dimension preferredSize = new Dimension(100, 100);
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72 | Dimension preferredSize;
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73 |
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74 | /** Creates a new instance of SVGIcon */
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75 | public SVGIcon()
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76 | {
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77 | }
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78 |
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79 | public void addPropertyChangeListener(PropertyChangeListener p)
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80 | {
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81 | changes.addPropertyChangeListener(p);
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82 | }
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83 |
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84 | public void removePropertyChangeListener(PropertyChangeListener p)
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85 | {
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86 | changes.removePropertyChangeListener(p);
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87 | }
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88 |
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89 | /**
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90 | * @return height of this icon
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91 | */
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92 | public int getIconHeight()
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93 | {
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94 | if (scaleToFit && preferredSize != null)
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95 | {
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96 | return preferredSize.height;
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97 | }
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98 |
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99 | SVGDiagram diagram = svgUniverse.getDiagram(svgURI);
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100 | if (diagram == null)
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101 | {
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102 | return 0;
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103 | }
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104 | return (int)diagram.getHeight();
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105 | }
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106 |
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107 | /**
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108 | * @return width of this icon
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109 | */
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110 | public int getIconWidth()
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111 | {
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112 | if (scaleToFit && preferredSize != null)
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113 | {
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114 | return preferredSize.width;
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115 | }
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116 |
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117 | SVGDiagram diagram = svgUniverse.getDiagram(svgURI);
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118 | if (diagram == null)
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119 | {
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120 | return 0;
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121 | }
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122 | return (int)diagram.getWidth();
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123 | }
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124 |
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125 | /**
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126 | * Draws the icon to the specified component.
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127 | * @param comp - Component to draw icon to. This is ignored by SVGIcon, and can be set to null; only gg is used for drawing the icon
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128 | * @param gg - Graphics context to render SVG content to
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129 | * @param x - X coordinate to draw icon
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130 | * @param y - Y coordinate to draw icon
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131 | */
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132 | public void paintIcon(Component comp, Graphics gg, int x, int y)
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133 | {
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134 | //Copy graphics object so that
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135 | Graphics2D g = (Graphics2D)gg.create();
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136 | paintIcon(comp, g, x, y);
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137 | g.dispose();
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138 | }
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139 |
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140 | private void paintIcon(Component comp, Graphics2D g, int x, int y)
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141 | {
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142 | Object oldAliasHint = g.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
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143 | g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, antiAlias ? RenderingHints.VALUE_ANTIALIAS_ON : RenderingHints.VALUE_ANTIALIAS_OFF);
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144 |
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145 | Object oldInterpolationHint = g.getRenderingHint(RenderingHints.KEY_INTERPOLATION);
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146 | switch (interpolation)
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147 | {
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148 | case INTERP_NEAREST_NEIGHBOR:
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149 | g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
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150 | break;
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151 | case INTERP_BILINEAR:
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152 | g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
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153 | break;
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154 | case INTERP_BICUBIC:
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155 | g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
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156 | break;
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157 | }
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158 |
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159 |
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160 | SVGDiagram diagram = svgUniverse.getDiagram(svgURI);
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161 | if (diagram == null)
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162 | {
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163 | return;
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164 | }
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165 |
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166 | g.translate(x, y);
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167 | diagram.setIgnoringClipHeuristic(!clipToViewbox);
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168 | if (clipToViewbox)
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169 | {
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170 | g.setClip(new Rectangle2D.Float(0, 0, diagram.getWidth(), diagram.getHeight()));
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171 | }
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172 |
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173 |
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174 |
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175 | if (!scaleToFit)
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176 | {
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177 | try
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178 | {
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179 | diagram.render(g);
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180 | g.translate(-x, -y);
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181 | g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, oldAliasHint);
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182 | }
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183 | catch (Exception e)
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184 | {
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185 | throw new RuntimeException(e);
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186 | }
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187 | return;
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188 | }
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189 |
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190 | final int width = getIconWidth();
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191 | final int height = getIconHeight();
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192 | // int width = getWidth();
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193 | // int height = getHeight();
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194 |
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195 | if (width == 0 || height == 0)
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196 | {
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197 | return;
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198 | }
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199 |
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200 | // if (width == 0 || height == 0)
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201 | // {
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202 | // //Chances are we're rendering offscreen
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203 | // Dimension dim = getSize();
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204 | // width = dim.width;
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205 | // height = dim.height;
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206 | // return;
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207 | // }
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208 |
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209 | // g.setClip(0, 0, width, height);
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210 |
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211 |
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212 | final Rectangle2D.Double rect = new Rectangle2D.Double();
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213 | diagram.getViewRect(rect);
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214 |
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215 | scaleXform.setToScale(width / rect.width, height / rect.height);
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216 |
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217 | AffineTransform oldXform = g.getTransform();
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218 | g.transform(scaleXform);
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219 |
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220 | try
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221 | {
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222 | diagram.render(g);
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223 | }
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224 | catch (SVGException e)
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225 | {
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226 | throw new RuntimeException(e);
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227 | }
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228 |
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229 | g.setTransform(oldXform);
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230 |
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231 |
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232 | g.translate(-x, -y);
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233 |
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234 | g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, oldAliasHint);
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235 | if (oldInterpolationHint != null)
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236 | {
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237 | g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, oldInterpolationHint);
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238 | }
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239 | }
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240 |
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241 | /**
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242 | * @return the universe this icon draws it's SVGDiagrams from
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243 | */
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244 | public SVGUniverse getSvgUniverse()
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245 | {
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246 | return svgUniverse;
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247 | }
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248 |
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249 | public void setSvgUniverse(SVGUniverse svgUniverse)
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250 | {
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251 | SVGUniverse old = this.svgUniverse;
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252 | this.svgUniverse = svgUniverse;
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253 | changes.firePropertyChange("svgUniverse", old, svgUniverse);
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254 | }
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255 |
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256 | /**
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257 | * @return the uni of the document being displayed by this icon
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258 | */
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259 | public URI getSvgURI()
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260 | {
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261 | return svgURI;
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262 | }
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263 |
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264 | /**
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265 | * Loads an SVG document from a URI.
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266 | * @param svgURI - URI to load document from
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267 | */
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268 | public void setSvgURI(URI svgURI)
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269 | {
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270 | URI old = this.svgURI;
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271 | this.svgURI = svgURI;
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272 |
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273 | SVGDiagram diagram = svgUniverse.getDiagram(svgURI);
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274 | if (diagram != null)
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275 | {
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276 | Dimension size = getPreferredSize();
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277 | if (size == null)
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278 | {
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279 | size = new Dimension((int)diagram.getRoot().getDeviceWidth(), (int)diagram.getRoot().getDeviceHeight());
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280 | }
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281 | diagram.setDeviceViewport(new Rectangle(0, 0, size.width, size.height));
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282 | }
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283 |
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284 | changes.firePropertyChange("svgURI", old, svgURI);
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285 | }
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286 |
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287 | /**
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288 | * Loads an SVG document from the classpath. This function is equivilant to
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289 | * setSvgURI(new URI(getClass().getResource(resourcePath).toString());
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290 | * @param resourcePath - resource to load
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291 | */
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292 | public void setSvgResourcePath(String resourcePath)
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293 | {
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294 | URI old = this.svgURI;
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295 |
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296 | try
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297 | {
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298 | svgURI = new URI(getClass().getResource(resourcePath).toString());
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299 | changes.firePropertyChange("svgURI", old, svgURI);
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300 |
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301 | SVGDiagram diagram = svgUniverse.getDiagram(svgURI);
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302 | if (diagram != null)
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303 | {
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304 | diagram.setDeviceViewport(new Rectangle(0, 0, preferredSize.width, preferredSize.height));
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305 | }
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306 |
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307 | }
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308 | catch (Exception e)
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309 | {
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310 | svgURI = old;
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311 | }
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312 | }
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313 |
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314 | /**
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315 | * If this SVG document has a viewbox, if scaleToFit is set, will scale the viewbox to match the
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316 | * preferred size of this icon
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317 | */
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318 | public boolean isScaleToFit()
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319 | {
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320 | return scaleToFit;
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321 | }
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322 |
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323 | public void setScaleToFit(boolean scaleToFit)
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324 | {
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325 | boolean old = this.scaleToFit;
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326 | this.scaleToFit = scaleToFit;
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327 | changes.firePropertyChange("scaleToFit", old, scaleToFit);
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328 | }
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329 |
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330 | public Dimension getPreferredSize()
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331 | {
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332 | if (preferredSize == null)
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333 | {
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334 | SVGDiagram diagram = svgUniverse.getDiagram(svgURI);
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335 | if (diagram != null)
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336 | {
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337 | //preferredSize = new Dimension((int)diagram.getWidth(), (int)diagram.getHeight());
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338 | setPreferredSize(new Dimension((int)diagram.getWidth(), (int)diagram.getHeight()));
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339 | }
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340 | }
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341 |
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342 | return new Dimension(preferredSize);
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343 | }
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344 |
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345 | public void setPreferredSize(Dimension preferredSize)
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346 | {
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347 | Dimension old = this.preferredSize;
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348 | this.preferredSize = preferredSize;
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349 |
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350 | SVGDiagram diagram = svgUniverse.getDiagram(svgURI);
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351 | if (diagram != null)
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352 | {
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353 | diagram.setDeviceViewport(new Rectangle(0, 0, preferredSize.width, preferredSize.height));
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354 | }
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355 |
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356 | changes.firePropertyChange("preferredSize", old, preferredSize);
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357 | }
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358 |
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359 |
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360 | /**
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361 | * @return true if antiAliasing is turned on.
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362 | * @deprecated
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363 | */
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364 | public boolean getUseAntiAlias()
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365 | {
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366 | return getAntiAlias();
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367 | }
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368 |
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369 | /**
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370 | * @param antiAlias true to use antiAliasing.
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371 | * @deprecated
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372 | */
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373 | public void setUseAntiAlias(boolean antiAlias)
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374 | {
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375 | setAntiAlias(antiAlias);
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376 | }
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377 |
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378 | /**
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379 | * @return true if antiAliasing is turned on.
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380 | */
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381 | public boolean getAntiAlias()
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382 | {
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383 | return antiAlias;
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384 | }
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385 |
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386 | /**
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387 | * @param antiAlias true to use antiAliasing.
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388 | */
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389 | public void setAntiAlias(boolean antiAlias)
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390 | {
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391 | boolean old = this.antiAlias;
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392 | this.antiAlias = antiAlias;
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393 | changes.firePropertyChange("antiAlias", old, antiAlias);
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394 | }
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395 |
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396 | /**
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397 | * @return interpolation used in rescaling images
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398 | */
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399 | public int getInterpolation()
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400 | {
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401 | return interpolation;
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402 | }
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403 |
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404 | /**
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405 | * @param interpolation Interpolation value used in rescaling images.
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406 | * Should be one of
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407 | * INTERP_NEAREST_NEIGHBOR - Fastest, one pixel resampling, poor quality
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408 | * INTERP_BILINEAR - four pixel resampling
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409 | * INTERP_BICUBIC - Slowest, nine pixel resampling, best quality
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410 | */
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411 | public void setInterpolation(int interpolation)
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412 | {
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413 | int old = this.interpolation;
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414 | this.interpolation = interpolation;
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415 | changes.firePropertyChange("interpolation", old, interpolation);
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416 | }
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417 |
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418 | /**
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419 | * clipToViewbox will set a clip box equivilant to the SVG's viewbox before
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420 | * rendering.
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421 | */
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422 | public boolean isClipToViewbox()
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423 | {
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424 | return clipToViewbox;
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425 | }
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426 |
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427 | public void setClipToViewbox(boolean clipToViewbox)
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428 | {
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429 | this.clipToViewbox = clipToViewbox;
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430 | }
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431 |
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432 | }
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