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1 /*
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2 * ImageFile.java -- digilib image file class.
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3 * Digital Image Library servlet components
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4 * Copyright (C) 2003 Robert Casties (robcast@mail.berlios.de)
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5 * This program is free software; you can redistribute it and/or modify it under the
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6 * terms of the GNU General Public License as published by the Free Software
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7 * Foundation; either version 2 of the License, or (at your option) any later
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8 * version. Please read license.txt for the full details. A copy of the GPL may
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9 * be found at http://www.gnu.org/copyleft/lgpl.html You should have received a
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10 * copy of the GNU General Public License along with this program; if not,
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11 * write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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12 * Boston, MA 02111-1307 USA Created on 26.08.2003
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13 */
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14
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15 package digilib.image;
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16
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17 /** Class for image size (width, height).
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18 *
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19 * A width or height of 0 is treated as a 'wildcard' that matches any size.
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20 *
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21 * @author casties
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22 *
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23 */
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24 public class ImageSize {
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25 public int width;
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26 public int height;
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27
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28 public ImageSize() {
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29 super();
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30 }
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31
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32 public ImageSize(int width, int height) {
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33 this.width = width;
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34 this.height = height;
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35 }
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36
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37 public ImageSize(ImageSize i) {
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38 this.width = i.width;
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39 this.height = i.height;
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40 }
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41
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42 public void setSize(int width, int height) {
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43 this.width = width;
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44 this.height = height;
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45 }
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46
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47 /**
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48 * Returns if the size of this image is smaller in every dimension than the
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49 * other image.
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50 *
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51 *
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52 *
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53 * @param is
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54 * @return
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55 */
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56 public boolean isTotallySmallerThan(ImageSize is) {
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57 if ((this.width == 0)||(is.width == 0)) {
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58 // width wildcard
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59 return (this.height <= is.height);
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60 }
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61 if ((this.height == 0)||(is.height == 0)) {
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62 // height wildcard
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63 return (this.width <= is.width);
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64 }
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65 return ((this.width <= is.width)&&(this.height <= is.height));
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66 }
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67
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68 /**
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69 * Returns if the size of this image is smaller in at least one dimension
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70 * than the other image.
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71 *
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72 * @param is
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73 * @return
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74 */
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75 public boolean isSmallerThan(ImageSize is) {
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76 if ((this.width == 0)||(is.width == 0)) {
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77 // width wildcard
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78 return (this.height <= is.height);
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79 }
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80 if ((this.height == 0)||(is.height == 0)) {
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81 // height wildcard
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82 return (this.width <= is.width);
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83 }
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84 return ((this.width <= is.width) || (this.height <= is.height));
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85 }
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86
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87 /**
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88 * Returns if the size of this image is bigger in every dimension than the
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89 * other image.
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90 *
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91 *
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92 *
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93 * @param is
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94 * @return
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95 */
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96 public boolean isTotallyBiggerThan(ImageSize is) {
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97 if ((this.width == 0)||(is.width == 0)) {
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98 // width wildcard
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99 return (this.height >= is.height);
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100 }
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101 if ((this.height == 0)||(is.height == 0)) {
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102 // height wildcard
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103 return (this.width >= is.width);
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104 }
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105 return ((this.width >= is.width) && (this.height >= is.height));
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106 }
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107
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108 /**
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109 * Returns if the size of this image is bigger in at least one dimension
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110 * than the other image.
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111 *
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112 *
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113 *
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114 * @param is
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115 * @return
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116 */
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117 public boolean isBiggerThan(ImageSize is) {
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118 if ((this.width == 0)||(is.width == 0)) {
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119 // width wildcard
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120 return (this.height >= is.height);
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121 }
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122 if ((this.height == 0)||(is.height == 0)) {
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123 // height wildcard
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124 return (this.width >= is.width);
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125 }
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126 return ((this.width >= is.width) || (this.height >= is.height));
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127 }
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128
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129 /**
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130 * Returns if this image has the same size or height as the other image.
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131 *
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132 *
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133 *
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134 * @param is
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135 * @return
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136 */
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137 public boolean fitsIn(ImageSize is) {
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138 if ((this.width == 0)||(is.width == 0)) {
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139 // width wildcard
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140 return (this.height == is.height);
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141 }
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142 if ((this.height == 0)||(is.height == 0)) {
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143 // height wildcard
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144 return (this.width == is.width);
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145 }
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146 return (
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147 (this.width == is.width)
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148 && (this.height <= is.height)
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149 || (this.width <= is.width)
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150 && (this.height == is.height));
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151 }
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152
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153 /**
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154 * Returns if the size of this image is the same as the other image.
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155 *
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156 *
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157 *
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158 * @param is
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159 * @return
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160 */
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161 public boolean equals(ImageSize is) {
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162 if ((this.width == 0)||(is.width == 0)) {
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163 // width wildcard
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164 return (this.height == is.height);
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165 }
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166 if ((this.height == 0)||(is.height == 0)) {
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167 // height wildcard
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168 return (this.width == is.width);
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169 }
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170 return ((this.width == is.width) && (this.height == is.height));
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171 }
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172
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173 /**
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174 * @return
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175 */
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176 public int getHeight() {
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177 return height;
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178 }
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179
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180 /**
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181 * @param height
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182 */
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183 public void setHeight(int height) {
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184 this.height = height;
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185 }
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186
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187 /**
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188 * @return
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189 */
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190 public int getWidth() {
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191 return width;
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192 }
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193
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194 /**
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195 * @param width
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196 */
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197 public void setWidth(int width) {
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198 this.width = width;
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199 }
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200
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201 /**
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202 * Returns the aspect ratio.
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203 *
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204 * Aspect ratio is (width/height). So it's <1 for portrait and >1 for
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205 * landscape.
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206 *
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207 * @return
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208 */
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209 public float getAspect() {
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210 return (height > 0) ? ((float) width / (float) height) : 0;
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211 }
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212
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213 /* (non-Javadoc)
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214 * @see java.lang.Object#toString()
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215 */
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216 public String toString() {
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217 String s = "[" + width + "x" + height + "]";
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218 return s;
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219 }
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220 }
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