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31
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1 // this global variable has to be initialised before the frist use of the functions below
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2 // to fill in the attributes you can use the function init provided below
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35
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3 // array with all attributes
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17
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4 var att = new Array();
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5
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31
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6 // fill in the values of the "att"-array
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7 function init(fn, pn, ws, mo, mk, wx, wy, ww, wh) {
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8
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9 // debug window to check the parameters passed
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10 //alert ("DEBUG message (parameters in init):\n\npu = " + pu + "\npn = " + pn + "\nws = " + ws + "\nmo = " + mo + "\nmk = " + mk + "\nwx = " + wx + "\nwy = " + wy + "\nww = " + ww + "\nwh = " + wh);
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11
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12 // attaching the values to the att-array
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13 att[0] = fn;
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14 att[1] = parseInt(pn);
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15 att[2] = parseFloat(ws);
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16 att[3] = mo;
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17 att[4] = mk;
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18 att[5] = parseFloat(wx);
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19 att[6] = parseFloat(wy);
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20 att[7] = parseFloat(ww);
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21 att[8] = parseFloat(wh);
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22
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23 // compatablility issue
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24 if (att[3].indexOf("f") > -1) {
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25 att[3] = "fit";
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26 }
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17
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27
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31
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28 // converts the old mark format (0-1000) to new format(0.0 - 1.0)
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29 // could even be useless now
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30 if (att[4] != "0/0") {
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31 var tmp = att[4].split(";");
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32
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33 att[4] = "";
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34
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35 for (i = 0; i < tmp.length; i++) {
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36 tmp[i] = tmp[i].split("/");
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37
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38 if (tmp[i][0] > 1 && tmp[i][1] > 1) {
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39 tmp[i][0] /= 1000;
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40 tmp[i][1] /= 1000;
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41 }
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42
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43 att[4] += tmp[i][0] + "/" + tmp[i][1] + ";";
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44 }
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45 att[4] = att[4].slice(0, -1);
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46 }
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47
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48 // initialisation stuff
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49 // ====================
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50
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51 setMarks();
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52
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53 window.captureEvents(Event.KEYDOWN);
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54 window.onkeydown = parseKeypress;
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55
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56 // give a name to the window containing digilib - this way one can test if there is already a
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57 // digilib-window open and replace the contents of it (ex. digicat)
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58 top.window.name = "digilib";
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59 }
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60
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17
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61
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62 // function that launches the ScaleServlet
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63 // the different detailGrades:
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64 // 0 -> back, next, page
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65 // 1 -> zoomout
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66 // 2 -> zoomarea, zoompoint, moveto, scaledef
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67
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68 function loadPicture(detailGrade, keepArea) {
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69
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31
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70 var newURL = "dlImage.jsp?"
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71 newURL += "fn=" + att[0] + "&pn=" + att[1] + "&ws=" + att[2] + "&mo=" + att[3];
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17
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72
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73 if (detailGrade == 0) {
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74 att[4] = "0/0";
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75 }
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76
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77 if ((detailGrade == 1) || (detailGrade == 0 && !keepArea)) {
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78 att[5] = 0;
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79 att[6] = 0;
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80 att[7] = 1;
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81 att[8] = 1;
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82 }
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31
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83
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84 newURL += "&mk=" + att[4] + "&wx=" + att[5] + "&wy=" + att[6] + "&ww=" + att[7] + "&wh=" + att[8];
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85 newURL += "&dw=" + (innerWidth-30) + "&dh=" + (innerHeight-30);
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17
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86
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31
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87 // debug window - checking the parameters passed to the next image
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88 //alert ("DEBUG MESSAGE (complete URL in loadPicture):\n\n" + newURL);
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17
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89
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31
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90 location.href = newURL;
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17
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91 }
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92
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93
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35
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94 // constructor holding different values of a point
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95 function Point(event) {
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96
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97 this.pageX = parseInt(event.pageX);
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98 this.pageY = parseInt(event.pageY);
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99
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100 this.x = this.pageX-document.lay1.left;
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101 this.y = this.pageY-document.lay1.top;
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102
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103 this.relX = cropFloat(att[5]+(att[7]*this.x/document.lay1.clip.width));
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104 this.relY = cropFloat(att[6]+(att[8]*this.y/document.lay1.clip.height));
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105
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106 return this;
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107 }
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108
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109
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31
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110 function backPage(keepArea) {
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17
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111
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112 att[1] = parseInt(att[1]) - 1;
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113
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114 if (att[1] > 0) {
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115 loadPicture(0, keepArea);
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116 } else {
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117 att[1] = parseInt(att[1]) + 1;
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118 alert("You are already on the first page!");
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119 }
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120 }
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121
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122
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31
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123 function nextPage(keepArea) {
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17
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124
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125 att[1] = parseInt(att[1]) + 1;
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126
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31
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127 loadPicture(0, keepArea);
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17
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128 }
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129
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130
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31
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131 function page(keepArea) {
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17
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132
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133 do {
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31
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134 page = prompt("Goto Page:", 1);
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135 } while ((page != null) && (page < 1));
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17
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136
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137 if (page != null && page != att[1]) {
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138 att[1] = page;
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139 loadPicture(0, keepArea);
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140 }
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141 }
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142
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143
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31
|
144 function digicat() {
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17
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145 var url = "http://" + location.host + "/docuserver/digitallibrary/digicat.html?" + att[0] + "+" + att[1];
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146 win = window.open(url, "digicat");
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147 win.focus();
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148 }
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149
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150
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31
|
151 function ref(refselect) {
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17
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152
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153 var hyperlinkRef = "http://" + location.host + "/docuserver/digitallibrary/digilib.jsp?";
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154 hyperlinkRef += att[0] + "+" + att[1] + "+" + att[2] + "+" + att[3] + "+" + att[4];
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155
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156 if ((att[5] != 0) || (att[6] != 0) || (att[7] != 1) || (att[8] != 1)) {
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157 hyperlinkRef += "+" + att[5] + "+" + att[6] + "+" + att[7] + "+" + att[8];
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158 }
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159
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160 if (refselect == 1) {
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161 prompt("Link for HTML--documents", hyperlinkRef);
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162 } else {
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163 prompt("Link for LaTeX--documents", "\\href{" + hyperlinkRef + "}{TEXT}");
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164 }
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165 }
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166
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167
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31
|
168 function mark(refselect) {
|
|
17
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169
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31
|
170 document.lay1.captureEvents(Event.MOUSEDOWN);
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171 document.lay1.onmousedown = function(event) {
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35
|
172 var point = new Point(event);
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17
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173
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174 if ((att[4] != "") && (att[4] != "0/0")) {
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175 att[4] += ";";
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176 } else {
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177 att[4] = "";
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178 }
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179
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35
|
180 att[4] += point.relX + "/" + point.relY;
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17
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181
|
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31
|
182 document.lay1.releaseEvents(Event.MOUSEDOWN);
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183 setMarks();
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35
|
184 }
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17
|
185 }
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186
|
|
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187
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31
|
188 function zoomArea() {
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17
|
189 var state = 0;
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35
|
190 var pt1, pt2;
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17
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191
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31
|
192 function click(event) {
|
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17
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193
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|
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194 if (state == 0) {
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195 state = 1;
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196
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35
|
197 pt1 = new Point(event);
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198 pt2 = pt1;
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17
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199
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35
|
200 document.eck1.moveTo(pt1.pageX, pt1.pageY);
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201 document.eck2.moveTo(pt2.pageX-12, pt1.pageY);
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202 document.eck3.moveTo(pt1.pageX, pt2.pageY-12);
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203 document.eck4.moveTo(pt2.pageX-12, pt2.pageY-12);
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17
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204
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31
|
205 document.eck1.visibility="show";
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206 document.eck2.visibility="show";
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207 document.eck3.visibility="show";
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208 document.eck4.visibility="show";
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17
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209
|
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31
|
210 document.lay1.captureEvents(Event.MOUSEMOVE);
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211 document.eck4.captureEvents(Event.MOUSEMOVE);
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17
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212
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31
|
213 document.lay1.onmousemove = move;
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214 document.eck4.onmousemove = move;
|
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17
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215
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|
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216 } else {
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217
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35
|
218 pt2 = new Point(event);
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17
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219
|
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31
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220 document.lay1.releaseEvents(Event.MOUSEDOWN | Event.MOUSEMOVE);
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221 document.eck4.releaseEvents(Event.MOUSEDOWN | Event.MOUSEMOVE);
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17
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222
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31
|
223 document.eck1.visibility="hide";
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224 document.eck2.visibility="hide";
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225 document.eck3.visibility="hide";
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226 document.eck4.visibility="hide";
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17
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227
|
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35
|
228 att[5] = Math.min(pt1.relX, pt2.relX);
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229 att[6] = Math.min(pt1.relY, pt2.relY);
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17
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230
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35
|
231 att[7] = Math.abs(pt1.relX-pt2.relX);
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232 att[8] = Math.abs(pt1.relY-pt2.relY);
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17
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233
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234 if (att[7] != 0 && att[8] != 0) {
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235 loadPicture(2);
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236 }
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|
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237 }
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|
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238 }
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239
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31
|
240 function move(event) {
|
|
17
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241
|
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35
|
242 pt2 = new Point(event);
|
|
17
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243
|
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35
|
244 document.eck1.moveTo(((pt1.pageX < pt2.pageX) ? pt1.pageX : pt2.pageX), ((pt1.pageY < pt2.pageY) ? pt1.pageY : pt2.pageY));
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245 document.eck2.moveTo(((pt1.pageX < pt2.pageX) ? pt2.pageX : pt1.pageX)-12, ((pt1.pageY < pt2.pageY) ? pt1.pageY : pt2.pageY));
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246 document.eck3.moveTo(((pt1.pageX < pt2.pageX) ? pt1.pageX : pt2.pageX), ((pt1.pageY < pt2.pageY) ? pt2.pageY : pt1.pageY)-12);
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247 document.eck4.moveTo(((pt1.pageX < pt2.pageX) ? pt2.pageX : pt1.pageX)-12, ((pt1.pageY < pt2.pageY) ? pt2.pageY : pt1.pageY)-12);
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17
|
248 }
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|
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249
|
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31
|
250 document.lay1.captureEvents(Event.MOUSEDOWN);
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251 document.eck4.captureEvents(Event.MOUSEDOWN);
|
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17
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252
|
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31
|
253 document.lay1.onmousedown = click;
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|
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254 document.eck4.onmousedown = click;
|
|
17
|
255 }
|
|
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256
|
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257
|
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31
|
258 function zoomPoint() {
|
|
17
|
259
|
|
31
|
260 document.lay1.captureEvents(Event.MOUSEDOWN);
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|
|
261 document.lay1.onmousedown = function(event) {
|
|
35
|
262 var point = new Point(event);
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|
|
263
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|
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264 att[5] = cropFloat(point.relX-0.5*att[7]*0.7);
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|
|
265 att[6] = cropFloat(point.relY-0.5*att[8]*0.7);
|
|
17
|
266
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|
|
267 att[7] = cropFloat(att[7]*0.7);
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|
|
268 att[8] = cropFloat(att[8]*0.7);
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|
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269
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|
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270 if (att[5] < 0) {
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|
|
271 att[5] = 0;
|
|
|
272 }
|
|
|
273 if (att[6] < 0) {
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|
|
274 att[6] = 0;
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|
|
275 }
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|
|
276 if (att[5]+att[7] > 1) {
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|
|
277 att[5] = 1-att[7];
|
|
|
278 }
|
|
|
279 if (att[6]+att[8] > 1) {
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|
|
280 att[6] = 1-att[8];
|
|
|
281 }
|
|
|
282
|
|
|
283 releaseEvents(Event.MOUSEDOWN);
|
|
|
284
|
|
|
285 loadPicture(2);
|
|
|
286 }
|
|
|
287 }
|
|
|
288
|
|
|
289
|
|
31
|
290 function zoomOut() {
|
|
17
|
291 loadPicture(1);
|
|
|
292 }
|
|
|
293
|
|
|
294
|
|
31
|
295 function moveTo() {
|
|
17
|
296
|
|
31
|
297 document.lay1.captureEvents(Event.MOUSEDOWN);
|
|
|
298 document.lay1.onmousedown = function(event) {
|
|
35
|
299 var point = new Point(event);
|
|
17
|
300
|
|
35
|
301 att[5] = cropFloat(point.relX-0.5*att[7]);
|
|
|
302 att[6] = cropFloat(point.relY-0.5*att[8]);
|
|
17
|
303
|
|
|
304 if (att[5] < 0) {
|
|
|
305 att[5] = 0;
|
|
|
306 }
|
|
|
307 if (att[6] < 0) {
|
|
|
308 att[6] = 0;
|
|
|
309 }
|
|
|
310 if (att[5]+att[7] > 1) {
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|
|
311 att[5] = 1-att[7];
|
|
|
312 }
|
|
|
313 if (att[6]+att[8] > 1) {
|
|
|
314 att[6] = 1-att[8];
|
|
|
315 }
|
|
|
316
|
|
|
317 releaseEvents(Event.MOUSEDOWN);
|
|
|
318
|
|
|
319 loadPicture(2);
|
|
|
320 }
|
|
|
321 }
|
|
|
322
|
|
|
323
|
|
31
|
324 function scale(scaledef) {
|
|
17
|
325
|
|
|
326 att[2] = scaledef;
|
|
|
327 loadPicture(2);
|
|
|
328 }
|
|
|
329
|
|
|
330
|
|
31
|
331 function setMarks() {
|
|
17
|
332 if ((att[4] != "") && (att[4] != "0/0")) {
|
|
|
333 var mark = att[4].split(";");
|
|
|
334
|
|
|
335 var countMarks = mark.length;
|
|
|
336
|
|
|
337 // maximum of marks is 8
|
|
|
338 // we do not report this error because this is already done in func. "Mark"
|
|
|
339 if (countMarks > 8) countMarks = 8;
|
|
|
340
|
|
31
|
341 var picWidth = document.lay1.clip.width;
|
|
|
342 var picHeight = document.lay1.clip.height;
|
|
17
|
343
|
|
|
344 for (var i = 0; i < countMarks; i++) {
|
|
|
345 mark[i] = mark[i].split("/");
|
|
|
346
|
|
|
347 if ((mark[i][0] > att[5]) && (mark[i][1] > att[6]) && (mark[i][0] < (att[5]+att[7])) && (mark[i][1] < (att[6]+att[8]))) {
|
|
|
348
|
|
31
|
349 mark[i][0] = parseInt(document.lay1.x + (picWidth*(mark[i][0]-att[5]))/att[7]);
|
|
|
350 mark[i][1] = parseInt(document.lay1.y + (picHeight*(mark[i][1]-att[6]))/att[8]);
|
|
17
|
351
|
|
31
|
352 document.layers[i+1].moveTo(mark[i][0]-5, mark[i][1]-5);
|
|
|
353 document.layers[i+1].visibility = "show";
|
|
17
|
354 }
|
|
|
355 }
|
|
|
356 }
|
|
|
357 }
|
|
|
358
|
|
|
359
|
|
|
360 // capturing keypresses for next and previous page
|
|
|
361 function parseKeypress(event) {
|
|
|
362 var whichCode = (window.Event) ? event.which : event.keyCode;
|
|
|
363 if (String.fromCharCode(whichCode) == "n") {
|
|
35
|
364 nextPage();
|
|
17
|
365 }
|
|
|
366 if (String.fromCharCode(whichCode) == "b") {
|
|
35
|
367 backPage();
|
|
17
|
368 }
|
|
|
369 }
|
|
|
370
|
|
|
371
|
|
|
372 // auxiliary function to crop senseless precicsion
|
|
|
373 function cropFloat(tmp) {
|
|
|
374 return parseInt(10000*tmp)/10000;
|
|
|
375 }
|
