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749
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1 /* Copyright (c) 2011 Martin Raspe, Robert Casties
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2
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3 This program is free software: you can redistribute it and/or modify
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4 it under the terms of the GNU Lesser General Public License as published by
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5 the Free Software Foundation, either version 2 of the License, or
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6 (at your option) any later version.
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7
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8 This program is distributed in the hope that it will be useful,
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9 but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 GNU Lesser General Public License for more details.
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12
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13 You should have received a copy of the GNU Lesser General Public License
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14 along with this program. If not, see <http://www.gnu.org/licenses/>.
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15
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16 Authors:
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17 Martin Raspe, Robert Casties, 11.1.2011
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18 */
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19
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20 /**
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21 * digilib jQuery plugin
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22 **/
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23
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24
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25 /* jslint browser: true, debug: true, forin: true
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26 */
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27
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28 // fallback for console.log calls
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29 if (typeof(console) === 'undefined') {
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30 var console = {
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31 log : function(){},
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32 debug : function(){},
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33 error : function(){}
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34 };
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35 var customConsole = true;
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36 }
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37
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38 (function($) {
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39 var buttons = {
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40 reference : {
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41 onclick : "reference",
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42 tooltip : "get a reference URL",
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43 img : "reference.png"
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44 },
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45 zoomin : {
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46 onclick : ["zoomBy", 1.4],
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47 tooltip : "zoom in",
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48 img : "zoom-in.png"
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49 },
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50 zoomout : {
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51 onclick : ["zoomBy", 0.7],
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52 tooltip : "zoom out",
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53 img : "zoom-out.png"
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54 },
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55 zoomarea : {
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56 onclick : "zoomArea",
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57 tooltip : "zoom area",
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58 img : "zoom-area.png"
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59 },
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60 zoomfull : {
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61 onclick : "zoomFull",
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62 tooltip : "view the whole image",
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63 img : "zoom-full.png"
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64 },
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65 pagewidth : {
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66 onclick : ["zoomFull", "width"],
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67 tooltip : "page width",
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68 img : "pagewidth.png"
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69 },
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70 back : {
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71 onclick : ["gotoPage", "-1"],
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72 tooltip : "goto previous image",
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73 img : "back.png"
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74 },
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75 fwd : {
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76 onclick : ["gotoPage", "+1"],
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77 tooltip : "goto next image",
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78 img : "fwd.png"
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79 },
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80 page : {
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81 onclick : "gotoPage",
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82 tooltip : "goto image number",
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83 img : "page.png"
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84 },
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85 bird : {
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86 onclick : "showBirdDiv",
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87 tooltip : "show bird's eye view",
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88 img : "birds-eye.png"
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89 },
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90 help : {
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91 onclick : "showAboutDiv",
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92 tooltip : "about Digilib",
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93 img : "help.png"
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94 },
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95 reset : {
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96 onclick : "reset",
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97 tooltip : "reset image",
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98 img : "reset.png"
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99 },
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100 mark : {
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101 onclick : "setMark",
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102 tooltip : "set a mark",
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103 img : "mark.png"
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104 },
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105 delmark : {
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106 onclick : "removeMark",
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107 tooltip : "delete the last mark",
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108 img : "delmark.png"
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109 },
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110 hmir : {
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111 onclick : ["mirror", "h"],
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112 tooltip : "mirror horizontally",
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113 img : "mirror-horizontal.png"
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114 },
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115 vmir : {
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116 onclick : ["mirror", "v"],
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117 tooltip : "mirror vertically",
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118 img : "mirror-vertical.png"
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119 },
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120 rot : {
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121 onclick : "rotate",
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122 tooltip : "rotate image",
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123 img : "rotate.png"
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124 },
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125 brgt : {
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126 onclick : "brightness",
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127 tooltip : "set brightness",
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128 img : "brightness.png"
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129 },
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130 cont : {
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131 onclick : "contrast",
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132 tooltip : "set contrast",
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133 img : "contrast.png"
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134 },
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135 rgb : {
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136 onclick : "javascript:setParamWin('rgb', '...')",
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137 tooltip : "set rgb values",
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138 img : "rgb.png"
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139 },
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140 quality : {
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141 onclick : "setQuality",
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142 tooltip : "set image quality",
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143 img : "quality.png"
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144 },
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145 size : {
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146 onclick : "javascript:toggleSizeMenu()",
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147 tooltip : "set page size",
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148 img : "size.png"
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149 },
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150 calibrationx : {
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151 onclick : "javascript:calibrate('x')",
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152 tooltip : "calibrate screen x-ratio",
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153 img : "calibration-x.png"
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154 },
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155 scale : {
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156 onclick : "javascript:toggleScaleMenu()",
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157 tooltip : "change image scale",
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158 img : "original-size.png"
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159 },
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160 toggleoptions : {
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161 onclick : "moreButtons",
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162 tooltip : "more options",
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163 img : "options.png"
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164 },
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165 moreoptions : {
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166 onclick : ["moreButtons", "+1"],
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167 tooltip : "more options",
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168 img : "options.png"
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169 },
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170 lessoptions : {
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171 onclick : ["moreButtons", "-1"],
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172 tooltip : "less options",
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173 img : "options.png"
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174 },
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175 SEP : {
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176 img : "sep.png"
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177 }
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178 };
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179
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180 var defaults = {
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181 // version of this script
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182 'version' : 'jquery.digilib.js 0.9',
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183 // logo url
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184 'logoUrl' : '../img/digilib-logo-text1.png',
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185 // homepage url (behind logo)
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186 'homeUrl' : 'http://digilib.berlios.de',
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187 // base URL to digilib viewer (for reference URLs)
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188 'digilibBaseUrl' : null,
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189 // base URL to Scaler servlet
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190 'scalerBaseUrl' : null,
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191 // list of Scaler parameters
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192 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo',
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193 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'],
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194 // Scaler parameter defaults
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195 'pn' : 1,
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196 'ww' : 1.0,
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197 'wh' : 1.0,
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198 'wx' : 0.0,
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199 'wy' : 0.0,
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200 'ws' : 1.0,
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201 'mo' : '',
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202 'rot' : 0,
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203 'cont' : 0,
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204 'brgt' : 0,
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205 'rgbm' : '0/0/0',
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206 'rgba' : '0/0/0',
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207 'ddpi' : null,
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208 'ddpix' : null,
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209 'ddpiy' : null,
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210 // list of digilib parameters
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211 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'],
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212 // digilib parameter defaults
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213 'mk' : '',
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214 'clop' : '',
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215 // mode of operation:
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216 // fullscreen = take parameters from page URL, keep state in page URL
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217 // embedded = take parameters from Javascript options, keep state inside object
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218 'interactionMode' : 'fullscreen',
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219 // buttons
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220 'buttons' : buttons,
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221 // defaults for digilib buttons
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222 'buttonSettings' : {
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223 'fullscreen' : {
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224 // path to button images (must end with a slash)
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225 'imagePath' : 'img/fullscreen/',
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226 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","help","reset","toggleoptions"],
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227 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","toggleoptions"],
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228 'buttonSets' : ['standardSet', 'specialSet']
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229 },
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230 'embedded' : {
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231 'imagePath' : 'img/embedded/16/',
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232 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","bird","help","reset","toggleoptions"],
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233 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","toggleoptions"],
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234 'buttonSets' : ['standardSet', 'specialSet']
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235 }
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236 },
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237 // number of visible button groups
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238 'visibleButtonSets' : 1,
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239 // is birdView shown?
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240 'isBirdDivVisible' : false,
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241 // dimensions of bird's eye div
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242 'birdDivWidth' : 200,
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243 'birdDivHeight' : 200,
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244 // parameters used by bird's eye div
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245 'birdDivParams' : ['fn','pn','dw','dh'],
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246 // style of the zoom area indicator in the bird's eye div
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247 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' },
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248 // style of zoom area "rubber band"
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249 'zoomrectStyle' : {'border' : '2px solid #ff0000' },
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250 // is the "about" window shown?
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251 'isAboutDivVisible' : false,
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252 // maximum width of background image for drag-scroll
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253 'maxBgSize' : 10000
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254
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255 };
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256
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257 // affine geometry classes
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258 var geom = dlGeometry();
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259
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260 var FULL_AREA = geom.rectangle(0, 0, 1, 1);
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261
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262 var actions = {
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263 // init: digilib initialization
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264 init : function(options) {
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265 // settings for this digilib instance are merged from defaults and options
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266 var settings = $.extend({}, defaults, options);
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267 var isFullscreen = settings.interactionMode === 'fullscreen';
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268 var queryParams = {};
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269 if (isFullscreen) {
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270 queryParams = parseQueryParams();
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271 // check scalerBaseUrl
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272 if (settings.scalerBaseUrl == null) {
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273 // try the host this came from
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274 var h = window.location.host;
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275 if (window.location.host) {
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276 var url = window.location.href;
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277 // assume the page lives in [webapp]/jquery/
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278 var pos = url.indexOf('jquery/');
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279 if (pos > 0) {
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280 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler';
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281 }
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282 }
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283 }
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284 }
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285 return this.each(function() {
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286 var $elem = $(this);
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287 var data = $elem.data('digilib');
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288 var params, elemSettings;
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289 // if the plugin hasn't been initialized yet
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290 if (!data) {
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291 // merge query parameters
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292 if (isFullscreen) {
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293 params = queryParams;
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294 } else {
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295 params = parseImgParams($elem);
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296 if (jQuery.cookie) {
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297 // retrieve params from cookie
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298 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1');
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299 var cs = jQuery.cookie(ck);
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300 console.debug("get cookie=", ck, " value=", cs);
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301 if (cs) {
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302 var cp = parseQueryString(cs);
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303 // ignore fn and pn from cookie TODO: should we keep pn?
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304 delete cp.fn;
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305 delete cp.pn;
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306 jQuery.extend(params, cp);
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307 }
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308 }
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309 }
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310 // store $(this) element in the settings
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311 elemSettings = jQuery.extend({}, settings, params);
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312 data = {
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313 $elem : $elem,
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314 settings : elemSettings,
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315 queryParams : params
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316 };
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317 // store in data element
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318 $elem.data('digilib', data);
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319 }
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320 unpackParams(data);
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321 // check if browser knows *background-size
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322 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) {
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323 if ($elem.css(bs+'background-size')) {
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324 data.hasBgSize = true;
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325 data.bgSizeName = bs+'background-size';
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326 break;
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327 }
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328 }
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329 // check digilib base URL
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330 if (elemSettings.digilibBaseUrl == null) {
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331 if (isFullscreen) {
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332 // take current host
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333 var url = window.location.toString();
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334 var pos = url.indexOf('?');
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335 elemSettings.digilibBaseUrl = url.substring(0, pos);
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336 } else {
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337 var url = elemSettings.scalerBaseUrl;
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338 if (url) {
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339 // build it from scaler URL
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340 var bp = url.indexOf('/servlet/Scaler');
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341 elemSettings.digilibBaseUrl = url.substring(0, bp) + '/digilib.jsp';
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342 }
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343 }
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344 }
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345 // create HTML structure for scaler
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346 setupScalerDiv(data);
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347 // add buttons
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348 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) {
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349 showButtons(data, true, i);
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350 }
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351 // bird's eye view creation
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352 if (elemSettings.isBirdDivVisible) {
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353 setupBirdDiv(data);
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354 data.$birdDiv.show();
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355 }
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356 // about window creation - TODO: could be deferred? restrict to only one item?
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357 setupAboutDiv(data);
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358 // drag zoom area around in scaler div
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359 setupZoomDrag(data);
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360 // dialog for brightness, rotate etc.
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361 setupDialogDiv(data);
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362 });
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363 },
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364
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365 // destroy: clean up digilib
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366 destroy : function(data) {
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367 return this.each(function(){
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368 var $elem = $(this);
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369 $(window).unbind('.digilib'); // unbind all digilibs(?)
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370 data.digilib.remove();
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371 $elem.removeData('digilib');
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372 });
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373 },
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374
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375 // show or hide the 'about' window
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376 showAboutDiv : function(data, show) {
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377 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show);
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378 },
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379
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380 // event handler: toggles the visibility of the bird's eye window
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381 showBirdDiv : function (data, show) {
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382 var settings = data.settings;
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383 if (data.$birdDiv == null) {
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384 // no bird div -> create
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385 setupBirdDiv(data);
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386 }
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387 settings.isBirdDivVisible = showDiv(settings.isBirdDivVisible, data.$birdDiv, show);
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388 updateBirdDiv(data);
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389 storeOptions(data);
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390 // data.$birdImg.triggerHandler('load'); // TODO: we shouldn't do that
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391 },
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392
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393 // goto given page nr (+/-: relative)
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394 gotoPage : function (data, pageNr) {
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395 var settings = data.settings;
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396 var oldpn = settings.pn;
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397 if (pageNr == null) {
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398 pageNr = window.prompt("Goto page number", oldpn);
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399 }
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400 var pn = setNumValue(settings, "pn", pageNr);
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401 if (pn == null) return false; // nothing happened
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402 if (pn < 1) {
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403 alert("no such page (page number too low)");
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404 settings.pn = oldpn;
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405 return false;
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406 }
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407 if (settings.pt) {
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408 if (pn > settings.pt) {
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409 alert("no such page (page number too high)");
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410 settings.pn = oldpn;
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411 return false;
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412 }
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413 }
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414 // reset mk and others(?)
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415 data.marks = [];
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416 data.zoomArea = FULL_AREA;
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417 // then reload
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418 redisplay(data);
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419 },
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420
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421 // zoom by a given factor
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422 zoomBy : function (data, factor) {
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423 zoomBy(data, factor);
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424 },
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425
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426 // zoom interactively
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|
|
427 zoomArea : function (data) {
|
|
|
428 zoomArea(data);
|
|
|
429 },
|
|
|
430
|
|
|
431 // zoom out to full page
|
|
|
432 zoomFull : function (data, mode) {
|
|
|
433 data.zoomArea = FULL_AREA;
|
|
|
434 if (mode === 'width') {
|
|
|
435 data.dlOpts.fitwidth = 1;
|
|
|
436 delete data.dlOpts.fitheight;
|
|
|
437 } else if (mode === 'height') {
|
|
|
438 data.dlOpts.fitheight = 1;
|
|
|
439 delete data.dlOpts.fitwidth;
|
|
|
440 } else {
|
|
|
441 delete data.dlOpts.fitwidth;
|
|
|
442 delete data.dlOpts.fitheight;
|
|
|
443 }
|
|
|
444 redisplay(data);
|
|
|
445 },
|
|
|
446
|
|
|
447 // set a mark by clicking (or giving a position)
|
|
|
448 setMark : function (data, mpos) {
|
|
|
449 if (mpos == null) {
|
|
|
450 // interactive
|
|
|
451 setMark(data);
|
|
|
452 } else {
|
|
|
453 // use position
|
|
|
454 data.marks.push(pos);
|
|
|
455 redisplay(data);
|
|
|
456 }
|
|
|
457 },
|
|
|
458
|
|
|
459 // remove the last mark
|
|
|
460 removeMark : function (data) {
|
|
|
461 data.marks.pop();
|
|
|
462 redisplay(data);
|
|
|
463 },
|
|
|
464
|
|
|
465 // mirror the image
|
|
|
466 mirror : function (data, mode) {
|
|
|
467 var flags = data.scalerFlags;
|
|
|
468 if (mode === 'h') {
|
|
|
469 if (flags.hmir) {
|
|
|
470 delete flags.hmir;
|
|
|
471 } else {
|
|
|
472 flags.hmir = 1;
|
|
|
473 }
|
|
|
474 } else {
|
|
|
475 if (flags.vmir) {
|
|
|
476 delete flags.vmir;
|
|
|
477 } else {
|
|
|
478 flags.vmir = 1;
|
|
|
479 }
|
|
|
480 }
|
|
|
481 redisplay(data);
|
|
|
482 },
|
|
|
483
|
|
|
484 // rotate the image
|
|
|
485 rotate : function (data, angle) {
|
|
|
486 var rot = data.settings.rot;
|
|
|
487 if (angle == null) {
|
|
|
488 // angle = window.prompt("Rotation angle:", rot);
|
|
|
489 var $slider = data.$slider;
|
|
|
490 $slider.slider('enable');
|
|
|
491 var $dialog = data.$dialog;
|
|
|
492 $dialog.text('Set the slider');
|
|
|
493 $dialog.dialog('option', {
|
|
|
494 'title' : 'set rotation angle',
|
|
|
495 });
|
|
|
496 $dialog.dialog('open');
|
|
|
497 }
|
|
|
498 //data.settings.rot = angle;
|
|
|
499 //redisplay(data);
|
|
|
500 },
|
|
|
501
|
|
|
502 // change brightness
|
|
|
503 brightness : function (data, factor) {
|
|
|
504 var brgt = data.settings.brgt;
|
|
|
505 if (factor == null) {
|
|
|
506 factor = window.prompt("Brightness (-255..255)", brgt);
|
|
|
507 }
|
|
|
508 data.settings.brgt = factor;
|
|
|
509 redisplay(data);
|
|
|
510 },
|
|
|
511
|
|
|
512 // change contrast
|
|
|
513 contrast : function (data, factor) {
|
|
|
514 var cont = data.settings.cont;
|
|
|
515 if (factor == null) {
|
|
|
516 factor = window.prompt("Contrast (-8, 8)", cont);
|
|
|
517 }
|
|
|
518 data.settings.cont = factor;
|
|
|
519 redisplay(data);
|
|
|
520 },
|
|
|
521
|
|
|
522 // display more (or less) button sets
|
|
|
523 moreButtons : function (data, more) {
|
|
|
524 var settings = data.settings;
|
|
|
525 if (more == null) {
|
|
|
526 // toggle more or less (only works for 2 sets)
|
|
|
527 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length;
|
|
|
528 if (settings.visibleButtonSets >= maxbtns) {
|
|
|
529 more = '-1';
|
|
|
530 } else {
|
|
|
531 more = '+1';
|
|
|
532 }
|
|
|
533 }
|
|
|
534 if (more === '-1') {
|
|
|
535 // remove set
|
|
|
536 var setIdx = settings.visibleButtonSets - 1;
|
|
|
537 if (showButtons(data, false, setIdx, true)) {
|
|
|
538 settings.visibleButtonSets--;
|
|
|
539 }
|
|
|
540 } else {
|
|
|
541 // add set
|
|
|
542 var setIdx = settings.visibleButtonSets;
|
|
|
543 if (showButtons(data, true, setIdx, true)) {
|
|
|
544 settings.visibleButtonSets++;
|
|
|
545 }
|
|
|
546 }
|
|
|
547 // persist setting
|
|
|
548 storeOptions(data);
|
|
|
549 },
|
|
|
550
|
|
|
551 // reset image parameters to defaults
|
|
|
552 reset : function (data) {
|
|
|
553 var settings = data.settings;
|
|
|
554 var paramNames = settings.digilibParamNames;
|
|
|
555 var params = data.queryParams;
|
|
|
556 // delete all digilib parameters
|
|
|
557 for (var i = 0; i < paramNames.length; i++) {
|
|
|
558 var paramName = paramNames[i];
|
|
|
559 delete settings[paramName];
|
|
|
560 }
|
|
|
561 settings.fn = params.fn || ''; // no default defined
|
|
|
562 settings.pn = params.pn || defaults.pn;
|
|
|
563 settings.dw = params.dw;
|
|
|
564 settings.dh = params.dh;
|
|
|
565 settings.isBirdDivVisible = false;
|
|
|
566 settings.visibleButtonSets = 1;
|
|
|
567 // resets zoomArea, marks, scalerflags
|
|
|
568 data.zoomArea = FULL_AREA;
|
|
|
569 data.marks = [];
|
|
|
570 data.scalerFlags = {};
|
|
|
571 delete data.dlOpts.fitwidth;
|
|
|
572 delete data.dlOpts.fitheight;
|
|
|
573 redisplay(data);
|
|
|
574 },
|
|
|
575
|
|
|
576 // presents a reference url (returns value if noprompt)
|
|
|
577 reference : function (data, noprompt) {
|
|
|
578 var settings = data.settings;
|
|
|
579 var url = getDigilibUrl(data);
|
|
|
580 if (noprompt == null) {
|
|
|
581 window.prompt("URL reference to the current view", url);
|
|
|
582 }
|
|
|
583 return url;
|
|
|
584 },
|
|
|
585
|
|
|
586 // set image quality
|
|
|
587 setQuality : function (data, qual) {
|
|
|
588 var oldq = getQuality(data);
|
|
|
589 if (qual == null) {
|
|
|
590 qual = window.prompt("Image quality (0..2)", oldq);
|
|
|
591 }
|
|
|
592 qual = parseInt(qual, 10);
|
|
|
593 if (qual >= 0 && qual <= 2) {
|
|
|
594 setQuality(data, qual);
|
|
|
595 redisplay(data);
|
|
|
596 }
|
|
|
597 }
|
|
|
598 };
|
|
|
599
|
|
|
600 // returns parameters from page url
|
|
|
601 var parseQueryParams = function() {
|
|
|
602 return parseQueryString(window.location.search.slice(1));
|
|
|
603 };
|
|
|
604
|
|
|
605 // returns parameters from embedded img-element
|
|
|
606 var parseImgParams = function($elem) {
|
|
|
607 var src = $elem.find('img').first().attr('src');
|
|
|
608 if (!src) return null;
|
|
|
609 var pos = src.indexOf('?');
|
|
|
610 var query = (pos < 0) ? '' : src.substring(pos + 1);
|
|
|
611 var scalerUrl = src.substring(0, pos);
|
|
|
612 var params = parseQueryString(query);
|
|
|
613 params.scalerBaseUrl = scalerUrl;
|
|
|
614 return params;
|
|
|
615 };
|
|
|
616
|
|
|
617 // parses query parameter string into parameter object
|
|
|
618 var parseQueryString = function(query) {
|
|
|
619 var params = {};
|
|
|
620 if (query == null) return params;
|
|
|
621 var pairs = query.split("&");
|
|
|
622 //var keys = [];
|
|
|
623 for (var i = 0; i < pairs.length; i++) {
|
|
|
624 var pair = pairs[i].split("=");
|
|
|
625 if (pair.length === 2) {
|
|
|
626 params[pair[0]] = pair[1];
|
|
|
627 //keys.push(pair[0]);
|
|
|
628 }
|
|
|
629 }
|
|
|
630 return params;
|
|
|
631 };
|
|
|
632
|
|
|
633 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults)
|
|
|
634 var getParamString = function (settings, keys, defaults) {
|
|
|
635 var paramString = '';
|
|
|
636 var nx = false;
|
|
|
637 for (i = 0; i < keys.length; ++i) {
|
|
|
638 var key = keys[i];
|
|
|
639 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) {
|
|
|
640 // first param gets no '&'
|
|
|
641 if (nx) {
|
|
|
642 paramString += '&';
|
|
|
643 } else {
|
|
|
644 nx = true;
|
|
|
645 }
|
|
|
646 // add parm=val
|
|
|
647 paramString += key + '=' + settings[key];
|
|
|
648 }
|
|
|
649 }
|
|
|
650 return paramString;
|
|
|
651 };
|
|
|
652
|
|
|
653 // returns URL and query string for Scaler
|
|
|
654 var getScalerUrl = function (data) {
|
|
|
655 packParams(data);
|
|
|
656 var settings = data.settings;
|
|
|
657 if (settings.scalerBaseUrl == null) {
|
|
|
658 alert("ERROR: URL of digilib Scaler servlet missing!");
|
|
|
659 }
|
|
|
660 var keys = settings.scalerParamNames;
|
|
|
661 var queryString = getParamString(settings, keys, defaults);
|
|
|
662 var url = settings.scalerBaseUrl + '?' + queryString;
|
|
|
663 return url;
|
|
|
664 };
|
|
|
665
|
|
|
666 // returns URL for bird's eye view image
|
|
|
667 var getBirdImgUrl = function (data, moreParams) {
|
|
|
668 var settings = data.settings;
|
|
|
669 var birdDivOptions = {
|
|
|
670 dw : settings.birdDivWidth,
|
|
|
671 dh : settings.birdDivHeight
|
|
|
672 };
|
|
|
673 var birdSettings = jQuery.extend({}, settings, birdDivOptions);
|
|
|
674 // use only the relevant parameters
|
|
|
675 if (moreParams == null) {
|
|
|
676 var params = getParamString(birdSettings, settings.birdDivParams, defaults);
|
|
|
677 } else {
|
|
|
678 var params = getParamString(birdSettings,
|
|
|
679 settings.birdDivParams.concat(moreParams), defaults);
|
|
|
680 }
|
|
|
681 var url = settings.scalerBaseUrl + '?' + params;
|
|
|
682 return url;
|
|
|
683 };
|
|
|
684
|
|
|
685 // returns URL and query string for current digilib
|
|
|
686 var getDigilibUrl = function (data) {
|
|
|
687 packParams(data);
|
|
|
688 var settings = data.settings;
|
|
|
689 var queryString = getParamString(settings, settings.digilibParamNames, defaults);
|
|
|
690 return settings.digilibBaseUrl + '?' + queryString;
|
|
|
691 };
|
|
|
692
|
|
|
693 // processes some parameters into objects and stuff
|
|
|
694 var unpackParams = function (data) {
|
|
|
695 var settings = data.settings;
|
|
|
696 // zoom area
|
|
|
697 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh);
|
|
|
698 data.zoomArea = zoomArea;
|
|
|
699 // marks
|
|
|
700 var marks = [];
|
|
|
701 if (settings.mk) {
|
|
|
702 var mk = settings.mk;
|
|
|
703 if (mk.indexOf(";") >= 0) {
|
|
|
704 var pa = mk.split(";"); // old format with ";"
|
|
|
705 } else {
|
|
|
706 var pa = mk.split(","); // new format
|
|
|
707 }
|
|
|
708 for (var i = 0; i < pa.length ; i++) {
|
|
|
709 var pos = pa[i].split("/");
|
|
|
710 if (pos.length > 1) {
|
|
|
711 marks.push(geom.position(pos[0], pos[1]));
|
|
|
712 }
|
|
|
713 }
|
|
|
714 }
|
|
|
715 data.marks = marks;
|
|
|
716 // mo (Scaler flags)
|
|
|
717 var flags = {};
|
|
|
718 if (settings.mo) {
|
|
|
719 var pa = settings.mo.split(",");
|
|
|
720 for (var i = 0; i < pa.length ; i++) {
|
|
|
721 flags[pa[i]] = pa[i];
|
|
|
722 }
|
|
|
723 }
|
|
|
724 data.scalerFlags = flags;
|
|
|
725 retrieveOptions(data);
|
|
|
726 };
|
|
|
727
|
|
|
728 // put objects back into parameters
|
|
|
729 var packParams = function (data) {
|
|
|
730 var settings = data.settings;
|
|
|
731 // zoom area
|
|
|
732 if (data.zoomArea) {
|
|
|
733 settings.wx = cropFloat(data.zoomArea.x);
|
|
|
734 settings.wy = cropFloat(data.zoomArea.y);
|
|
|
735 settings.ww = cropFloat(data.zoomArea.width);
|
|
|
736 settings.wh = cropFloat(data.zoomArea.height);
|
|
|
737 }
|
|
|
738 // marks
|
|
|
739 if (data.marks) {
|
|
|
740 settings.mk = '';
|
|
|
741 for (var i = 0; i < data.marks.length; i++) {
|
|
|
742 if (i) {
|
|
|
743 settings.mk += ',';
|
|
|
744 }
|
|
|
745 settings.mk += cropFloat(data.marks[i].x).toString() +
|
|
|
746 '/' + cropFloat(data.marks[i].y).toString();
|
|
|
747 }
|
|
|
748 }
|
|
|
749 // Scaler flags
|
|
|
750 if (data.scalerFlags) {
|
|
|
751 var mo = '';
|
|
|
752 for (var f in data.scalerFlags) {
|
|
|
753 if (mo) {
|
|
|
754 mo += ',';
|
|
|
755 }
|
|
|
756 mo += f;
|
|
|
757 }
|
|
|
758 settings.mo = mo;
|
|
|
759 }
|
|
|
760 // user interface options
|
|
|
761 storeOptions(data);
|
|
|
762 };
|
|
|
763
|
|
|
764 var storeOptions = function (data) {
|
|
|
765 // save digilib options in cookie
|
|
|
766 var settings = data.settings;
|
|
|
767 if (data.dlOpts) {
|
|
|
768 // save digilib settings in options
|
|
|
769 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0;
|
|
|
770 data.dlOpts.buttons = settings.visibleButtonSets;
|
|
|
771 var clop = '';
|
|
|
772 for (var o in data.dlOpts) {
|
|
|
773 if (clop) {
|
|
|
774 clop += '&';
|
|
|
775 }
|
|
|
776 clop += o + '=' + data.dlOpts[o];
|
|
|
777 }
|
|
|
778 if (jQuery.cookie) {
|
|
|
779 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn;
|
|
|
780 console.debug("set cookie=", ck, " value=", clop);
|
|
|
781 jQuery.cookie(ck, clop);
|
|
|
782 }
|
|
|
783 }
|
|
|
784 if (settings.interactionMode !== 'fullscreen' && jQuery.cookie) {
|
|
|
785 // store normal parameters in cookie for embedded mode
|
|
|
786 var qs = getParamString(settings, settings.digilibParamNames, defaults);
|
|
|
787 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn;
|
|
|
788 console.debug("set cookie=", ck, " value=", qs);
|
|
|
789 jQuery.cookie(ck, qs);
|
|
|
790 }
|
|
|
791 };
|
|
|
792
|
|
|
793 var retrieveOptions = function (data) {
|
|
|
794 // clop (digilib options)
|
|
|
795 var opts = {};
|
|
|
796 var settings = data.settings;
|
|
|
797 if (jQuery.cookie) {
|
|
|
798 // read from cookie
|
|
|
799 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn;
|
|
|
800 var cp = jQuery.cookie(ck);
|
|
|
801 console.debug("get cookie=", ck, " value=", cp);
|
|
|
802 // in query string format
|
|
|
803 opts = parseQueryString(cp);
|
|
|
804 }
|
|
|
805 data.dlOpts = opts;
|
|
|
806 // birdview option
|
|
|
807 if (opts.birdview != null) {
|
|
|
808 settings.isBirdDivVisible = opts.birdview === '1';
|
|
|
809 }
|
|
|
810 // visible button sets
|
|
|
811 if (opts.buttons != null) {
|
|
|
812 settings.visibleButtonSets = opts.buttons;
|
|
|
813 }
|
|
|
814 };
|
|
|
815
|
|
|
816 // (re)load the img from a new scaler URL
|
|
|
817 var redisplay = function (data) {
|
|
|
818 var settings = data.settings;
|
|
|
819 if (settings.interactionMode === 'fullscreen') {
|
|
|
820 // update location.href (browser URL) in fullscreen mode
|
|
|
821 var url = getDigilibUrl(data);
|
|
|
822 var history = window.history;
|
|
|
823 if (typeof(history.pushState) === 'function') {
|
|
|
824 console.debug("we could modify history, but we don't...");
|
|
|
825 }
|
|
|
826 window.location = url;
|
|
|
827 } else {
|
|
|
828 // embedded mode -- just change img src
|
|
|
829 var url = getScalerUrl(data);
|
|
|
830 data.$img.attr('src', url);
|
|
|
831 // redisplay bird img
|
|
|
832 updateBirdDiv(data);
|
|
|
833 }
|
|
|
834 };
|
|
|
835
|
|
|
836 // returns maximum size for scaler img in fullscreen mode
|
|
|
837 var getFullscreenImgSize = function($elem) {
|
|
|
838 var $win = $(window);
|
|
|
839 var winH = $win.height();
|
|
|
840 var winW = $win.width();
|
|
|
841 // TODO: account for borders?
|
|
|
842 return geom.size(winW, winH);
|
|
|
843 };
|
|
|
844
|
|
|
845 // creates HTML structure for digilib in elem
|
|
|
846 var setupScalerDiv = function (data) {
|
|
|
847 var settings = data.settings;
|
|
|
848 var $elem = data.$elem;
|
|
|
849 $elem.addClass('digilib');
|
|
|
850 var $img;
|
|
|
851 var scalerUrl;
|
|
|
852 if (settings.interactionMode === 'fullscreen') {
|
|
|
853 // fullscreen
|
|
|
854 $elem.addClass('dl_fullscreen');
|
|
|
855 var imgSize = getFullscreenImgSize($elem);
|
|
|
856 // fitwidth/height omits destination height/width
|
|
|
857 if (data.dlOpts.fitheight == null) {
|
|
|
858 settings.dw = imgSize.width;
|
|
|
859 }
|
|
|
860 if (data.dlOpts.fitwidth == null) {
|
|
|
861 settings.dh = imgSize.height;
|
|
|
862 }
|
|
|
863 scalerUrl = getScalerUrl(data);
|
|
|
864 $img = $('<img/>');
|
|
|
865 } else {
|
|
|
866 // embedded mode -- try to keep img tag
|
|
|
867 $elem.addClass('dl_embedded');
|
|
|
868 scalerUrl = getScalerUrl(data);
|
|
|
869 $img = $elem.find('img');
|
|
|
870 if ($img.length > 0) {
|
|
|
871 oldUrl = $img.attr('src');
|
|
|
872 if (oldUrl === scalerUrl) {
|
|
|
873 console.debug("img detach:", $img);
|
|
|
874 $img.detach();
|
|
|
875 } else {
|
|
|
876 $img = $('<img/>');
|
|
|
877 }
|
|
|
878 } else {
|
|
|
879 $img = $('<img/>');
|
|
|
880 }
|
|
|
881 }
|
|
|
882 // create new html
|
|
|
883 $elem.empty(); // TODO: should we keep stuff for customization?
|
|
|
884 var $scaler = $('<div class="scaler"/>');
|
|
|
885 $elem.append($scaler);
|
|
|
886 $scaler.append($img);
|
|
|
887 $img.addClass('pic');
|
|
|
888 data.$scaler = $scaler;
|
|
|
889 data.$img = $img;
|
|
|
890 // setup image load handler before setting the src attribute (IE bug)
|
|
|
891 $img.load(scalerImgLoadedHandler(data));
|
|
|
892 $img.attr('src', scalerUrl);
|
|
|
893 };
|
|
|
894
|
|
|
895 // creates HTML structure for buttons in elem
|
|
|
896 var createButtons = function (data, buttonSetIdx) {
|
|
|
897 var $elem = data.$elem;
|
|
|
898 var settings = data.settings;
|
|
|
899 var mode = settings.interactionMode;
|
|
|
900 var buttonSettings = settings.buttonSettings[mode];
|
|
|
901 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx];
|
|
|
902 if (buttonGroup == null) {
|
|
|
903 // no buttons here
|
|
|
904 return;
|
|
|
905 }
|
|
|
906 var $buttonsDiv = $('<div class="buttons"/>');
|
|
|
907 var buttonNames = buttonSettings[buttonGroup];
|
|
|
908 for (var i = 0; i < buttonNames.length; i++) {
|
|
|
909 var buttonName = buttonNames[i];
|
|
|
910 var buttonConfig = settings.buttons[buttonName];
|
|
|
911 // construct the button html
|
|
|
912 var $button = $('<div class="button"></div>');
|
|
|
913 var $a = $('<a/>');
|
|
|
914 var $img = $('<img class="button"/>');
|
|
|
915 $buttonsDiv.append($button);
|
|
|
916 $button.append($a);
|
|
|
917 $a.append($img);
|
|
|
918 // add attributes and bindings
|
|
|
919 $button.attr('title', buttonConfig.tooltip);
|
|
|
920 $button.addClass('button-' + buttonName);
|
|
|
921 // create handler for the buttons
|
|
|
922 $a.bind('click.digilib', (function () {
|
|
|
923 // we create a new closure to capture the value of action
|
|
|
924 var action = buttonConfig.onclick;
|
|
|
925 if ($.isArray(action)) {
|
|
|
926 // the handler function calls digilib with action and parameters
|
|
|
927 return function (evt) {
|
|
|
928 console.debug('click action=', action, ' evt=', evt);
|
|
|
929 $elem.digilib.apply($elem, action);
|
|
|
930 return false;
|
|
|
931 };
|
|
|
932 } else {
|
|
|
933 // the handler function calls digilib with action
|
|
|
934 return function (evt) {
|
|
|
935 console.debug('click action=', action, ' evt=', evt);
|
|
|
936 $elem.digilib(action);
|
|
|
937 return false;
|
|
|
938 };
|
|
|
939 }
|
|
|
940 })());
|
|
|
941 $img.attr('src', buttonSettings.imagePath + buttonConfig.img);
|
|
|
942 }
|
|
|
943 // make buttons div scroll if too large for window
|
|
|
944 if ($buttonsDiv.height() > $(window).height() - 10) {
|
|
|
945 $buttonsDiv.css('position', 'absolute');
|
|
|
946 }
|
|
|
947 // buttons hidden at first
|
|
|
948 $buttonsDiv.hide();
|
|
|
949 $elem.append($buttonsDiv);
|
|
|
950 if (data.$buttonSets == null) {
|
|
|
951 // first button set
|
|
|
952 data.$buttonSets = [$buttonsDiv];
|
|
|
953 } else {
|
|
|
954 $elem.append($buttonsDiv);
|
|
|
955 data.$buttonSets[buttonSetIdx] = $buttonsDiv;
|
|
|
956 }
|
|
|
957 return $buttonsDiv;
|
|
|
958 };
|
|
|
959
|
|
|
960 // creates HTML structure for the bird's eye view in elem
|
|
|
961 var setupBirdDiv = function (data) {
|
|
|
962 var $elem = data.$elem;
|
|
|
963 // the bird's eye div
|
|
|
964 var $birdDiv = $('<div class="birdview" style="display:none"/>');
|
|
|
965 // the detail indicator frame
|
|
|
966 var $birdZoom = $('<div class="birdzoom" style="display:none; background-color:transparent;"/>');
|
|
|
967 // the small image
|
|
|
968 var $birdImg = $('<img class="birdimg"/>');
|
|
|
969 data.$birdDiv = $birdDiv;
|
|
|
970 data.$birdZoom = $birdZoom;
|
|
|
971 data.$birdImg = $birdImg;
|
|
|
972 $elem.append($birdDiv);
|
|
|
973 $birdDiv.append($birdZoom);
|
|
|
974 $birdDiv.append($birdImg);
|
|
|
975 $birdZoom.css(data.settings.birdIndicatorStyle);
|
|
|
976 var birdUrl = getBirdImgUrl(data);
|
|
|
977 $birdImg.load(birdImgLoadedHandler(data));
|
|
|
978 $birdImg.attr('src', birdUrl);
|
|
|
979 };
|
|
|
980
|
|
|
981 // update bird's eye view
|
|
|
982 var updateBirdDiv = function (data) {
|
|
|
983 if (!data.settings.isBirdDivVisible) return;
|
|
|
984 var $birdImg = data.$birdImg;
|
|
|
985 var oldsrc = $birdImg.attr('src');
|
|
|
986 var newsrc = getBirdImgUrl(data);
|
|
|
987 if (oldsrc !== newsrc) {
|
|
|
988 $birdImg.attr('src', newsrc);
|
|
|
989 // onload handler re-renders
|
|
|
990 } else {
|
|
|
991 // re-render
|
|
|
992 renderBirdArea(data);
|
|
|
993 // enable click and drag
|
|
|
994 setupBirdDrag(data);
|
|
|
995 }
|
|
|
996 };
|
|
|
997
|
|
|
998 // creates HTML structure for the dialog
|
|
|
999 var setupDialogDiv = function (data) {
|
|
|
1000 var $elem = data.$elem;
|
|
|
1001 var settings = data.settings;
|
|
|
1002 var $dialogDiv = $('<div/>');
|
|
|
1003 var $sliderDiv = $('<div/>');
|
|
|
1004 $dialogDiv.append($sliderDiv);
|
|
|
1005 $dialogDiv.dialog({
|
|
|
1006 'autoOpen' : false,
|
|
|
1007 'buttons': {
|
|
|
1008 "Ok": function() {
|
|
|
1009 $(this).dialog("close");
|
|
|
1010 },
|
|
|
1011 "Cancel": function() {
|
|
|
1012 $(this).dialog("close");
|
|
|
1013 }
|
|
|
1014 }
|
|
|
1015 });
|
|
|
1016 $sliderDiv.slider({
|
|
|
1017 'range' : true,
|
|
|
1018 'min' : 0,
|
|
|
1019 'max' : 500,
|
|
|
1020 'values' : [ 75, 300 ]
|
|
|
1021 });
|
|
|
1022 data.$dialog = $dialogDiv;
|
|
|
1023 data.$slider = $sliderDiv;
|
|
|
1024 };
|
|
|
1025
|
|
|
1026 // creates HTML structure for the about view in elem
|
|
|
1027 var setupAboutDiv = function (data) {
|
|
|
1028 var $elem = data.$elem;
|
|
|
1029 var settings = data.settings;
|
|
|
1030 var $aboutDiv = $('<div class="about" style="display:none"/>');
|
|
|
1031 var $header = $('<p>Digilib Graphic Viewer</p>');
|
|
|
1032 var $link = $('<a/>');
|
|
|
1033 var $logo = $('<img class="logo" title="digilib"/>');
|
|
|
1034 var $content = $('<p/>');
|
|
|
1035 $elem.append($aboutDiv);
|
|
|
1036 $aboutDiv.append($header);
|
|
|
1037 $aboutDiv.append($link);
|
|
|
1038 $aboutDiv.append($content);
|
|
|
1039 $link.append($logo);
|
|
|
1040 $logo.attr('src', settings.logoUrl);
|
|
|
1041 $link.attr('href', settings.homeUrl);
|
|
|
1042 $content.text('Version: ' + settings.version);
|
|
|
1043 // click hides
|
|
|
1044 $aboutDiv.bind('click.digilib', function () {
|
|
|
1045 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0);
|
|
|
1046 return false;
|
|
|
1047 });
|
|
|
1048 data.$aboutDiv = $aboutDiv;
|
|
|
1049 };
|
|
|
1050
|
|
|
1051 // shows some window e.g. 'about' (toggle visibility if show is null)
|
|
|
1052 var showDiv = function (isVisible, $div, show) {
|
|
|
1053 if (show == null) {
|
|
|
1054 // toggle visibility
|
|
|
1055 isVisible = !isVisible;
|
|
|
1056 } else {
|
|
|
1057 // set visibility
|
|
|
1058 isVisible = show;
|
|
|
1059 }
|
|
|
1060 if (isVisible) {
|
|
|
1061 $div.fadeIn();
|
|
|
1062 } else {
|
|
|
1063 $div.fadeOut();
|
|
|
1064 }
|
|
|
1065 return isVisible;
|
|
|
1066 };
|
|
|
1067
|
|
|
1068 // display more (or less) button sets
|
|
|
1069 var showButtons = function (data, more, setIdx, animated) {
|
|
|
1070 var atime = animated ? 'fast': 0;
|
|
|
1071 if (more) {
|
|
|
1072 // add set
|
|
|
1073 var $otherSets = data.$elem.find('div.buttons:visible');
|
|
|
1074 var $set;
|
|
|
1075 if (data.$buttonSets && data.$buttonSets[setIdx]) {
|
|
|
1076 // set exists
|
|
|
1077 $set = data.$buttonSets[setIdx];
|
|
|
1078 } else {
|
|
|
1079 $set = createButtons(data, setIdx);
|
|
|
1080 }
|
|
|
1081 if ($set == null) return false;
|
|
|
1082 var btnWidth = $set.width();
|
|
|
1083 // move remaining sets left and show new set
|
|
|
1084 if ($otherSets.length > 0) {
|
|
|
1085 $otherSets.animate({right : '+='+btnWidth+'px'}, atime,
|
|
|
1086 function () {$set.show();});
|
|
|
1087 } else {
|
|
|
1088 $set.show();
|
|
|
1089 }
|
|
|
1090 } else {
|
|
|
1091 // remove set
|
|
|
1092 var $set = data.$buttonSets[setIdx];
|
|
|
1093 if ($set == null) return false;
|
|
|
1094 var btnWidth = $set.width();
|
|
|
1095 // hide last set
|
|
|
1096 $set.hide();
|
|
|
1097 // take remaining sets and move right
|
|
|
1098 var $otherSets = data.$elem.find('div.buttons:visible');
|
|
|
1099 $otherSets.animate({right : '-='+btnWidth+'px'}, atime);
|
|
|
1100 }
|
|
|
1101 return true;
|
|
|
1102 };
|
|
|
1103
|
|
|
1104 // create Transform from area and $img
|
|
|
1105 var getImgTrafo = function ($img, area, rot, hmir, vmir) {
|
|
|
1106 var picrect = geom.rectangle($img);
|
|
|
1107 var trafo = geom.transform();
|
|
|
1108 // move zoom area offset to center
|
|
|
1109 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y)));
|
|
|
1110 // scale zoom area size to [1,1]
|
|
|
1111 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height)));
|
|
|
1112 // rotate and mirror (around transformed image center i.e. [0.5,0.5])
|
|
|
1113 if (rot || hmir || vmir) {
|
|
|
1114 // move [0.5,0.5] to center
|
|
|
1115 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5)));
|
|
|
1116 if (hmir) {
|
|
|
1117 // mirror about center
|
|
|
1118 trafo.concat(trafo.getMirror('y'));
|
|
|
1119 }
|
|
|
1120 if (vmir) {
|
|
|
1121 // mirror about center
|
|
|
1122 trafo.concat(trafo.getMirror('x'));
|
|
|
1123 }
|
|
|
1124 if (rot) {
|
|
|
1125 // rotate around center
|
|
|
1126 trafo.concat(trafo.getRotation(parseFloat(rot)));
|
|
|
1127 }
|
|
|
1128 // move back
|
|
|
1129 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5)));
|
|
|
1130 }
|
|
|
1131 // scale to screen position and size
|
|
|
1132 trafo.concat(trafo.getScale(picrect));
|
|
|
1133 trafo.concat(trafo.getTranslation(picrect));
|
|
|
1134 return trafo;
|
|
|
1135 };
|
|
|
1136
|
|
|
1137 // returns function for load event of scaler img
|
|
|
1138 var scalerImgLoadedHandler = function (data) {
|
|
|
1139 return function () {
|
|
|
1140 var $img = $(this);
|
|
|
1141 var $scaler = data.$scaler;
|
|
|
1142 // create Transform from current area and picsize
|
|
|
1143 data.imgTrafo = getImgTrafo($img, data.zoomArea,
|
|
|
1144 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir);
|
|
|
1145 console.debug("imgTrafo=", data.imgTrafo);
|
|
|
1146 // adjust scaler div size
|
|
|
1147 var imgRect = geom.rectangle($img);
|
|
|
1148 console.debug("imgrect=", imgRect);
|
|
|
1149 imgRect.adjustDiv($scaler);
|
|
|
1150 // show image in case it was hidden (for example in zoomDrag)
|
|
|
1151 $img.css('visibility', 'visible');
|
|
|
1152 $scaler.css({'opacity' : '1', 'background-image' : 'none'});
|
|
|
1153 // display marks
|
|
|
1154 renderMarks(data);
|
|
|
1155 // enable drag-to-scroll
|
|
|
1156 setupZoomDrag(data);
|
|
|
1157 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation
|
|
|
1158 };
|
|
|
1159 };
|
|
|
1160
|
|
|
1161 // returns function for load event of bird's eye view img
|
|
|
1162 var birdImgLoadedHandler = function (data) {
|
|
|
1163 return function () {
|
|
|
1164 var $img = $(this);
|
|
|
1165 console.debug("birdimg loaded! this=", this, " data=", data);
|
|
|
1166 // create Transform from current area and picsize
|
|
|
1167 data.birdTrafo = getImgTrafo($img, FULL_AREA);
|
|
|
1168 // display red indicator around zoomarea
|
|
|
1169 renderBirdArea(data);
|
|
|
1170 // enable click and drag
|
|
|
1171 setupBirdDrag(data);
|
|
|
1172 };
|
|
|
1173 };
|
|
|
1174
|
|
|
1175 // place marks on the image
|
|
|
1176 var renderMarks = function (data) {
|
|
|
1177 var $elem = data.$elem;
|
|
|
1178 var marks = data.marks;
|
|
|
1179 // clear marks
|
|
|
1180 $elem.find('div.mark').remove();
|
|
|
1181 for (var i = 0; i < marks.length; i++) {
|
|
|
1182 var mark = marks[i];
|
|
|
1183 if (data.zoomArea.containsPosition(mark)) {
|
|
|
1184 var mpos = data.imgTrafo.transform(mark);
|
|
|
1185 console.debug("renderMarks: mpos=",mpos);
|
|
|
1186 // create mark
|
|
|
1187 var html = '<div class="mark">'+(i+1)+'</div>';
|
|
|
1188 var $mark = $(html);
|
|
|
1189 $elem.append($mark);
|
|
|
1190 mpos.adjustDiv($mark);
|
|
|
1191 }
|
|
|
1192 }
|
|
|
1193 };
|
|
|
1194
|
|
|
1195 // show zoom area indicator on bird's eye view
|
|
|
1196 var renderBirdArea = function (data) {
|
|
|
1197 var $birdZoom = data.$birdZoom;
|
|
|
1198 var zoomArea = data.zoomArea;
|
|
|
1199 var normalSize = isFullArea(zoomArea);
|
|
|
1200 if (normalSize) {
|
|
|
1201 $birdZoom.hide();
|
|
|
1202 return;
|
|
|
1203 } else {
|
|
|
1204 $birdZoom.show();
|
|
|
1205 }
|
|
|
1206 // position may have changed
|
|
|
1207 data.birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA);
|
|
|
1208 var zoomRect = data.birdTrafo.transform(zoomArea);
|
|
|
1209 // acount for border width
|
|
|
1210 zoomRect.addPosition({x : -2, y : -2});
|
|
|
1211 if (data.settings.interactionMode === 'fullscreen') {
|
|
|
1212 // no animation for fullscreen
|
|
|
1213 zoomRect.adjustDiv($birdZoom);
|
|
|
1214 } else {
|
|
|
1215 // nice animation for embedded mode :-)
|
|
|
1216 // correct offsetParent because animate doesn't use offset
|
|
|
1217 var ppos = $birdZoom.offsetParent().offset();
|
|
|
1218 var dest = {
|
|
|
1219 left : (zoomRect.x - ppos.left) + 'px',
|
|
|
1220 top : (zoomRect.y - ppos.top) + 'px',
|
|
|
1221 width : zoomRect.width,
|
|
|
1222 height : zoomRect.height};
|
|
|
1223 $birdZoom.animate(dest);
|
|
|
1224 }
|
|
|
1225 };
|
|
|
1226
|
|
|
1227 // zooms by the given factor
|
|
|
1228 var zoomBy = function(data, factor) {
|
|
|
1229 var area = data.zoomArea;
|
|
|
1230 var newarea = area.copy();
|
|
|
1231 // scale
|
|
|
1232 newarea.width /= factor;
|
|
|
1233 newarea.height /= factor;
|
|
|
1234 // and recenter
|
|
|
1235 newarea.x -= 0.5 * (newarea.width - area.width);
|
|
|
1236 newarea.y -= 0.5 * (newarea.height - area.height);
|
|
|
1237 newarea = FULL_AREA.fit(newarea);
|
|
|
1238 data.zoomArea = newarea;
|
|
|
1239 redisplay(data);
|
|
|
1240 };
|
|
|
1241
|
|
|
1242 // add a mark where clicked
|
|
|
1243 var setMark = function (data) {
|
|
|
1244 var $scaler = data.$scaler;
|
|
|
1245 // unbind other handler
|
|
|
1246 $scaler.unbind(".dlZoomDrag");
|
|
|
1247 // start event capturing
|
|
|
1248 $scaler.one('mousedown.dlSetMark', function (evt) {
|
|
|
1249 // event handler adding a new mark
|
|
|
1250 console.log("setmark at=", evt);
|
|
|
1251 var mpos = geom.position(evt);
|
|
|
1252 var pos = data.imgTrafo.invtransform(mpos);
|
|
|
1253 data.marks.push(pos);
|
|
|
1254 redisplay(data);
|
|
|
1255 return false;
|
|
|
1256 });
|
|
|
1257 };
|
|
|
1258
|
|
|
1259 // zoom to the area around two clicked points
|
|
|
1260 var zoomArea = function(data) {
|
|
|
1261 $elem = data.$elem;
|
|
|
1262 $scaler = data.$scaler;
|
|
|
1263 var pt1, pt2;
|
|
|
1264 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>');
|
|
|
1265 $elem.append($zoomDiv);
|
|
|
1266 $zoomDiv.css(data.settings.zoomrectStyle);
|
|
|
1267 var picRect = geom.rectangle($scaler);
|
|
|
1268 // FIX ME: is there a way to query the border width from CSS info?
|
|
|
1269 // rect.x -= 2; // account for overlay borders
|
|
|
1270 // rect.y -= 2;
|
|
|
1271
|
|
|
1272 var zoomStart = function (evt) {
|
|
|
1273 pt1 = geom.position(evt);
|
|
|
1274 // setup and show zoom div
|
|
|
1275 pt1.adjustDiv($zoomDiv);
|
|
|
1276 $zoomDiv.width(0).height(0);
|
|
|
1277 $zoomDiv.show();
|
|
|
1278 // register events
|
|
|
1279 $elem.bind("mousemove.dlZoomArea", zoomMove);
|
|
|
1280 $elem.bind("mouseup.dlZoomArea", zoomEnd);
|
|
|
1281 return false;
|
|
|
1282 };
|
|
|
1283
|
|
|
1284 // mouse move handler
|
|
|
1285 var zoomMove = function (evt) {
|
|
|
1286 pt2 = geom.position(evt);
|
|
|
1287 var rect = geom.rectangle(pt1, pt2);
|
|
|
1288 rect.clipTo(picRect);
|
|
|
1289 // update zoom div
|
|
|
1290 rect.adjustDiv($zoomDiv);
|
|
|
1291 return false;
|
|
|
1292 };
|
|
|
1293
|
|
|
1294 // mouseup handler: end moving
|
|
|
1295 var zoomEnd = function (evt) {
|
|
|
1296 pt2 = geom.position(evt);
|
|
|
1297 // assume a click and continue if the area is too small
|
|
|
1298 var clickRect = geom.rectangle(pt1, pt2);
|
|
|
1299 if (clickRect.getArea() <= 5) return false;
|
|
|
1300 // hide zoom div
|
|
|
1301 $zoomDiv.remove();
|
|
|
1302 // unregister events
|
|
|
1303 $elem.unbind("mousemove.dlZoomArea", zoomMove);
|
|
|
1304 $elem.unbind("mouseup.dlZoomArea", zoomEnd);
|
|
|
1305 // clip and transform
|
|
|
1306 clickRect.clipTo(picRect);
|
|
|
1307 var area = data.imgTrafo.invtransform(clickRect);
|
|
|
1308 data.zoomArea = area;
|
|
|
1309 // zoomed is always fit
|
|
|
1310 data.settings.ws = 1;
|
|
|
1311 delete data.dlOpts.fitwidth;
|
|
|
1312 delete data.dlOpts.fitheight;
|
|
|
1313 redisplay(data);
|
|
|
1314 return false;
|
|
|
1315 };
|
|
|
1316
|
|
|
1317 // clear old handler (also ZoomDrag)
|
|
|
1318 $scaler.unbind('.dlZoomArea');
|
|
|
1319 $scaler.unbind(".dlZoomDrag");
|
|
|
1320 $elem.unbind('.dlZoomArea');
|
|
|
1321 // bind start zoom handler
|
|
|
1322 $scaler.one('mousedown.dlZoomArea', zoomStart);
|
|
|
1323 };
|
|
|
1324
|
|
|
1325 // bird's eye view zoom area click and drag handler
|
|
|
1326 var setupBirdDrag = function(data) {
|
|
|
1327 var $birdImg = data.$birdImg;
|
|
|
1328 var $birdZoom = data.$birdZoom;
|
|
|
1329 var $document = $(document);
|
|
|
1330 var $scaler = data.$scaler;
|
|
|
1331 var startPos, newRect, birdImgRect, birdZoomRect, fullRect, scalerPos;
|
|
|
1332
|
|
|
1333 // mousedown handler: start dragging bird zoom to a new position
|
|
|
1334 var birdZoomStartDrag = function(evt) {
|
|
|
1335 startPos = geom.position(evt);
|
|
|
1336 // position may have changed
|
|
|
1337 data.birdTrafo = getImgTrafo($birdImg, FULL_AREA);
|
|
|
1338 birdImgRect = geom.rectangle($birdImg);
|
|
|
1339 birdZoomRect = geom.rectangle($birdZoom);
|
|
|
1340 scalerPos = geom.position($scaler);
|
|
|
1341 newRect = null;
|
|
|
1342 fullRect = setZoomBG(data); // setup zoom background image
|
|
|
1343 $document.bind("mousemove.dlBirdMove", birdZoomMove);
|
|
|
1344 $document.bind("mouseup.dlBirdMove", birdZoomEndDrag);
|
|
|
1345 return false;
|
|
|
1346 };
|
|
|
1347
|
|
|
1348 // mousemove handler: drag
|
|
|
1349 var birdZoomMove = function(evt) {
|
|
|
1350 var pos = geom.position(evt);
|
|
|
1351 var delta = startPos.delta(pos);
|
|
|
1352 // move birdZoom div, keeping size
|
|
|
1353 newRect = birdZoomRect.copy();
|
|
|
1354 newRect.addPosition(delta);
|
|
|
1355 newRect.stayInside(birdImgRect);
|
|
|
1356 // reflect birdview zoom position in scaler image
|
|
|
1357 var area = data.birdTrafo.invtransform(newRect);
|
|
|
1358 var imgArea = data.imgTrafo.transform(area);
|
|
|
1359 var offset = imgArea.getPosition().neg();
|
|
|
1360 offset.add(scalerPos);
|
|
|
1361 console.log('offset', offset);
|
|
|
1362 if (fullRect) {
|
|
|
1363 var bgPos = fullRect.getPosition().add(offset);
|
|
|
1364 } else {
|
|
|
1365 var bgPos = offset;
|
|
|
1366 }
|
|
|
1367 // move the background image to the new position
|
|
|
1368 data.$scaler.css({
|
|
|
1369 'background-position' : bgPos.x + "px " + bgPos.y + "px"
|
|
|
1370 });
|
|
|
1371 // acount for border width
|
|
|
1372 newRect.addPosition({x : -2, y : -2});
|
|
|
1373 newRect.adjustDiv($birdZoom);
|
|
|
1374 return false;
|
|
|
1375 };
|
|
|
1376
|
|
|
1377 // mouseup handler: reload page
|
|
|
1378 var birdZoomEndDrag = function(evt) {
|
|
|
1379 var settings = data.settings;
|
|
|
1380 $document.unbind("mousemove.dlBirdMove", birdZoomMove);
|
|
|
1381 $document.unbind("mouseup.dlBirdMove", birdZoomEndDrag);
|
|
|
1382 if (newRect == null) {
|
|
|
1383 // no movement happened - set center to click position
|
|
|
1384 startPos = birdZoomRect.getCenter();
|
|
|
1385 birdZoomMove(evt);
|
|
|
1386 }
|
|
|
1387 // ugly, but needed to prevent double border width compensation
|
|
|
1388 newRect.addPosition({x : +2, y : +2});
|
|
|
1389 var newArea = data.birdTrafo.invtransform(newRect);
|
|
|
1390 data.zoomArea = newArea;
|
|
|
1391 redisplay(data);
|
|
|
1392 return false;
|
|
|
1393 };
|
|
|
1394
|
|
|
1395 // clear old handler
|
|
|
1396 $document.unbind(".dlBirdMove");
|
|
|
1397 $birdImg.unbind(".dlBirdMove");
|
|
|
1398 $birdZoom.unbind(".dlBirdMove");
|
|
|
1399 if (! isFullArea(data.zoomArea)) {
|
|
|
1400 // set new handler
|
|
|
1401 $birdImg.bind("mousedown.dlBirdMove", birdZoomStartDrag);
|
|
|
1402 $birdZoom.bind("mousedown.dlBirdMove", birdZoomStartDrag);
|
|
|
1403 }
|
|
|
1404 };
|
|
|
1405
|
|
|
1406 // move bird zoom indicator to reflect zoomed detail area
|
|
|
1407 var setBirdZoom = function(data, rect) {
|
|
|
1408 var part = data.imgTrafo.invtransform(rect);
|
|
|
1409 // area = FULL_AREA.fit(part); // no, we want to see where we transcend the borders
|
|
|
1410 birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA);
|
|
|
1411 var birdRect = birdTrafo.transform(part);
|
|
|
1412 // acount for border width
|
|
|
1413 birdRect.addPosition({x : -2, y : -2});
|
|
|
1414 birdRect.adjustDiv(data.$birdZoom);
|
|
|
1415 };
|
|
|
1416
|
|
|
1417 // set zoom background
|
|
|
1418 var setZoomBG = function(data) {
|
|
|
1419 var $scaler = data.$scaler;
|
|
|
1420 var $img = data.$img;
|
|
|
1421 var fullRect = null;
|
|
|
1422 // hide the scaler img, show background of div instead
|
|
|
1423 $img.css('visibility', 'hidden');
|
|
|
1424 var scalerCss = {
|
|
|
1425 'background-image' : 'url(' + $img.attr('src') + ')',
|
|
|
1426 'background-repeat' : 'no-repeat',
|
|
|
1427 'background-position' : 'left top',
|
|
|
1428 'opacity' : '0.5',
|
|
|
1429 'cursor' : 'move'
|
|
|
1430 };
|
|
|
1431 if (data.hasBgSize) {
|
|
|
1432 // full-size background using CSS3-background-size
|
|
|
1433 fullRect = data.imgTrafo.transform(FULL_AREA);
|
|
|
1434 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) {
|
|
|
1435 // correct offset because background is relative
|
|
|
1436 var scalerPos = geom.position($scaler);
|
|
|
1437 fullRect.addPosition(scalerPos.neg());
|
|
|
1438 var url = getBirdImgUrl(data, ['rot', 'mo']);
|
|
|
1439 scalerCss['background-image'] = 'url(' + url + ')';
|
|
|
1440 scalerCss[data.bgSizeName] = fullRect.width + 'px ' + fullRect.height + 'px';
|
|
|
1441 scalerCss['background-position'] = fullRect.x + 'px '+ fullRect.y + 'px';
|
|
|
1442 } else {
|
|
|
1443 // too big
|
|
|
1444 fullRect = null;
|
|
|
1445 }
|
|
|
1446 }
|
|
|
1447 $scaler.css(scalerCss);
|
|
|
1448 // isBgReady = true;
|
|
|
1449 return fullRect;
|
|
|
1450 };
|
|
|
1451
|
|
|
1452 // setup handlers for dragging the zoomed image
|
|
|
1453 var setupZoomDrag = function(data) {
|
|
|
1454 var startPos, delta, fullRect;
|
|
|
1455 var $document = $(document);
|
|
|
1456 var $elem = data.$elem;
|
|
|
1457 var $scaler = data.$scaler;
|
|
|
1458 var $img = data.$img;
|
|
|
1459
|
|
|
1460 // drag the image and load a new detail on mouse up
|
|
|
1461 var dragStart = function (evt) {
|
|
|
1462 console.debug("dragstart at=",evt);
|
|
|
1463 // don't start dragging if not zoomed
|
|
|
1464 if (isFullArea(data.zoomArea)) return false;
|
|
|
1465 startPos = geom.position(evt);
|
|
|
1466 delta = null;
|
|
|
1467 // set low res background immediately on mousedown
|
|
|
1468 fullRect = setZoomBG(data);
|
|
|
1469 $document.bind("mousemove.dlZoomDrag", dragMove);
|
|
|
1470 $document.bind("mouseup.dlZoomDrag", dragEnd);
|
|
|
1471 return false;
|
|
|
1472 };
|
|
|
1473
|
|
|
1474 // mousemove handler: drag zoomed image
|
|
|
1475 var dragMove = function (evt) {
|
|
|
1476 var pos = geom.position(evt);
|
|
|
1477 delta = startPos.delta(pos);
|
|
|
1478 if (fullRect) {
|
|
|
1479 var bgPos = fullRect.getPosition().add(delta);
|
|
|
1480 } else {
|
|
|
1481 var bgPos = delta;
|
|
|
1482 }
|
|
|
1483 // move the background image to the new position
|
|
|
1484 $scaler.css({
|
|
|
1485 'background-position' : bgPos.x + "px " + bgPos.y + "px"
|
|
|
1486 });
|
|
|
1487 // set birdview indicator to reflect new zoom position
|
|
|
1488 var za = geom.rectangle($img);
|
|
|
1489 za.addPosition(delta.neg());
|
|
|
1490 setBirdZoom(data, za);
|
|
|
1491 return false;
|
|
|
1492 };
|
|
|
1493
|
|
|
1494 // mouseup handler: reload zoomed image in new position
|
|
|
1495 var dragEnd = function (evt) {
|
|
|
1496 $scaler.css('cursor', 'auto');
|
|
|
1497 $document.unbind("mousemove.dlZoomDrag", dragMove);
|
|
|
1498 $document.unbind("mouseup.dlZoomDrag", dragEnd);
|
|
|
1499 if (delta == null || delta.distance() < 2) {
|
|
|
1500 // no movement
|
|
|
1501 $img.css('visibility', 'visible');
|
|
|
1502 $scaler.css({'opacity' : '1', 'background-image' : 'none'});
|
|
|
1503 return false;
|
|
|
1504 }
|
|
|
1505 // get old zoom area (screen coordinates)
|
|
|
1506 var za = geom.rectangle($img);
|
|
|
1507 // move
|
|
|
1508 za.addPosition(delta.neg());
|
|
|
1509 // transform back
|
|
|
1510 var newArea = data.imgTrafo.invtransform(za);
|
|
|
1511 data.zoomArea = FULL_AREA.fit(newArea);
|
|
|
1512 redisplay(data);
|
|
|
1513 return false;
|
|
|
1514 };
|
|
|
1515
|
|
|
1516 // clear old handler
|
|
|
1517 $document.unbind(".dlZoomDrag");
|
|
|
1518 $scaler.unbind(".dlZoomDrag");
|
|
|
1519 if (! isFullArea(data.zoomArea)) {
|
|
|
1520 // set handler
|
|
|
1521 $scaler.bind("mousedown.dlZoomDrag", dragStart);
|
|
|
1522 }
|
|
|
1523 };
|
|
|
1524
|
|
|
1525 // get image quality as a number (0..2)
|
|
|
1526 var getQuality = function (data) {
|
|
|
1527 var flags = data.scalerFlags;
|
|
|
1528 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default
|
|
|
1529 return parseInt(q[1], 10);
|
|
|
1530 };
|
|
|
1531
|
|
|
1532 // set image quality as a number (0..2)
|
|
|
1533 var setQuality = function (data, qual) {
|
|
|
1534 var flags = data.scalerFlags;
|
|
|
1535 // clear flags
|
|
|
1536 for (var i = 0; i < 3; ++i) {
|
|
|
1537 delete flags['q'+i];
|
|
|
1538 }
|
|
|
1539 flags['q'+qual] = 'q'+qual;
|
|
|
1540 };
|
|
|
1541
|
|
|
1542 // sets a key to a value (relative values with +/- if relative=true)
|
|
|
1543 var setNumValue = function(settings, key, value) {
|
|
|
1544 if (value == null) return null;
|
|
|
1545 if (isNumber(value)) {
|
|
|
1546 settings[key] = value;
|
|
|
1547 return value;
|
|
|
1548 }
|
|
|
1549 var sign = value[0];
|
|
|
1550 if (sign === '+' || sign === '-') {
|
|
|
1551 if (settings[key] == null) {
|
|
|
1552 // this isn't perfect but still...
|
|
|
1553 settings[key] = 0;
|
|
|
1554 }
|
|
|
1555 settings[key] = parseFloat(settings[key]) + parseFloat(value);
|
|
|
1556 } else {
|
|
|
1557 settings[key] = value;
|
|
|
1558 }
|
|
|
1559 return settings[key];
|
|
|
1560 };
|
|
|
1561
|
|
|
1562 // auxiliary function (from old dllib.js)
|
|
|
1563 var isFullArea = function(area) {
|
|
|
1564 return (area.width === 1.0) && (area.height === 1.0);
|
|
|
1565 };
|
|
|
1566
|
|
|
1567 // auxiliary function (from Douglas Crockford, A.10)
|
|
|
1568 var isNumber = function isNumber(value) {
|
|
|
1569 return typeof value === 'number' && isFinite(value);
|
|
|
1570 };
|
|
|
1571
|
|
|
1572 // auxiliary function to crop senseless precision
|
|
|
1573 var cropFloat = function (x) {
|
|
|
1574 return parseInt(10000 * x, 10) / 10000;
|
|
|
1575 };
|
|
|
1576
|
|
|
1577 // fallback for console.log calls
|
|
|
1578 if (customConsole) {
|
|
|
1579 var logFunction = function(type) {
|
|
|
1580 return function(){
|
|
|
1581 var $debug = $('#debug'); // debug div
|
|
|
1582 if (!$debug) return;
|
|
|
1583 var args = Array.prototype.slice.call(arguments);
|
|
|
1584 var argtext = args.join(' ');
|
|
|
1585 var $logDiv = $('<div/>');
|
|
|
1586 $logDiv.addClass(type);
|
|
|
1587 $logDiv.text(argtext);
|
|
|
1588 $debug.append($logDiv);
|
|
|
1589 };
|
|
|
1590 };
|
|
|
1591 console.log = logFunction('_log');
|
|
|
1592 console.debug = logFunction('_debug');
|
|
|
1593 console.error = logFunction('_error');
|
|
|
1594 }
|
|
|
1595
|
|
|
1596 // hook plugin into jquery
|
|
|
1597 $.fn.digilib = function(action) {
|
|
|
1598 if (actions[action]) {
|
|
|
1599 // call action on this with the remaining arguments (inserting data as first argument)
|
|
|
1600 var $elem = $(this);
|
|
|
1601 var data = $elem.data('digilib');
|
|
|
1602 var args = Array.prototype.slice.call(arguments, 1);
|
|
|
1603 args.unshift(data);
|
|
|
1604 return actions[action].apply(this, args);
|
|
|
1605 } else if (typeof(action) === 'object' || !action) {
|
|
|
1606 // call init on this
|
|
|
1607 return actions.init.apply(this, arguments);
|
|
|
1608 } else {
|
|
|
1609 $.error('action ' + action + ' does not exist on jQuery.digilib');
|
|
|
1610 }
|
|
|
1611 };
|
|
|
1612
|
|
|
1613 })(jQuery); |
