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34
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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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20
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3 // - array with all attributes
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4 var att = new Array();
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5
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34
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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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20
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27
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34
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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 this.document.addEventListener('keypress', parseKeypress, true);
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54 focus();
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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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20
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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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34
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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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20
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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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34
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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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20
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86
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34
|
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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20
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89
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34
|
90 location.href = newURL;
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20
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91 }
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92
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93
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34
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94 function backPage(keepArea) {
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20
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95
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96 att[1] = parseInt(att[1]) - 1;
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97
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98 if (att[1] > 0) {
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99 loadPicture(0, keepArea);
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100 } else {
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101 att[1] = parseInt(att[1]) + 1;
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102 alert("You are already on the first page!");
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103 }
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104 }
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105
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106
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34
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107 function nextPage(keepArea) {
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20
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108
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109 att[1] = parseInt(att[1]) + 1;
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110
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34
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111 loadPicture(0, keepArea);
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20
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112 }
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113
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114
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34
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115 function page(keepArea) {
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20
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116
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117 do {
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34
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118 page = prompt("Goto Page:", 1);
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119 } while ((page != null) && (page < 1));
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20
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120
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121 if (page != null && page != att[1]) {
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122 att[1] = page;
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123 loadPicture(0, keepArea);
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124 }
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125 }
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126
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127
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34
|
128 function digicat() {
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20
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129 var url = "http://" + location.host + "/docuserver/digitallibrary/digicat.html?" + att[0] + "+" + att[1];
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130 win = window.open(url, "digicat");
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131 win.focus();
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132 }
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133
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134
|
|
34
|
135 function ref(refselect) {
|
|
20
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136
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137 var hyperlinkRef = "http://" + location.host + "/docuserver/digitallibrary/digilib.jsp?";
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138 hyperlinkRef += att[0] + "+" + att[1] + "+" + att[2] + "+" + att[3] + "+" + att[4];
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139
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140 if ((att[5] != 0) || (att[6] != 0) || (att[7] != 1) || (att[8] != 1)) {
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141 hyperlinkRef += "+" + att[5] + "+" + att[6] + "+" + att[7] + "+" + att[8];
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|
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142 }
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143
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|
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144 if (refselect == 1) {
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145 prompt("Link for HTML--documents", hyperlinkRef);
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|
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146 } else {
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|
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147 prompt("Link for LaTeX--documents", "\\href{" + hyperlinkRef + "}{TEXT}");
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|
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148 }
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|
|
149 }
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|
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150
|
|
|
151
|
|
34
|
152 function mark() {
|
|
20
|
153
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|
|
154 if (att[4].split(";").length > 7) {
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|
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155 alert("Only 8 marks are possible at the moment!");
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|
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156 return;
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|
|
157 }
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|
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158
|
|
34
|
159 function markEvent(event) {
|
|
20
|
160
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|
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161 if ((att[4] != "") && (att[4] != "0/0")) {
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|
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162 att[4] += ";";
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|
|
163 } else {
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|
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164 att[4] = "";
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|
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165 }
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166
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34
|
167 var markX = cropFloat(att[5]+att[7]*(event.pageX-parseInt(document.getElementById("lay1").style.left))/document.pic.offsetWidth);
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168 var markY = cropFloat(att[6]+att[8]*(event.pageY-parseInt(document.getElementById("lay1").style.top))/document.pic.offsetHeight);
|
|
20
|
169
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|
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170 att[4] += markX + "/" + markY;
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171
|
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34
|
172 document.getElementById("lay1").removeEventListener("mousedown", markEvent, true);
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|
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173 setMarks();
|
|
20
|
174 }
|
|
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175
|
|
34
|
176 document.getElementById("lay1").addEventListener("mousedown", markEvent, true);
|
|
20
|
177 }
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|
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178
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|
|
179
|
|
34
|
180 function zoomArea() {
|
|
20
|
181 var state = 0;
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|
|
182 var x1, y1, x2, y2;
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|
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183
|
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34
|
184 function click(event) {
|
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20
|
185
|
|
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186 if (state == 0) {
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187 state = 1;
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188
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|
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189 x1 = event.pageX;
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190 y1 = event.pageY;
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191 x2 = x1;
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192 y2 = y1;
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193
|
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34
|
194 document.getElementById("eck1").style.left = x1;
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195 document.getElementById("eck1").style.top = y1;
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196 document.getElementById("eck2").style.left = x2-12;
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197 document.getElementById("eck2").style.top = y1;
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198 document.getElementById("eck3").style.left = x1;
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199 document.getElementById("eck3").style.top = y2-12;
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200 document.getElementById("eck4").style.left = x2-12;
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201 document.getElementById("eck4").style.top = y2-12;
|
|
20
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202
|
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34
|
203 document.getElementById("eck1").style.visibility="visible";
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204 document.getElementById("eck2").style.visibility="visible";
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205 document.getElementById("eck3").style.visibility="visible";
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206 document.getElementById("eck4").style.visibility="visible";
|
|
20
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207
|
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34
|
208 document.getElementById("lay1").addEventListener("mousemove", move, true);
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209 document.getElementById("eck4").addEventListener("mousemove", move, true);
|
|
20
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210
|
|
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211 } else {
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212
|
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34
|
213 x1 -= parseInt(document.getElementById("lay1").style.left);
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|
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214 y1 -= parseInt(document.getElementById("lay1").style.top);
|
|
20
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215
|
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34
|
216 x2 = event.pageX-parseInt(document.getElementById("lay1").style.left);
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217 y2 = event.pageY-parseInt(document.getElementById("lay1").style.top);
|
|
20
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218
|
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34
|
219 document.getElementById("lay1").removeEventListener("mousedown", click, true);
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220 document.getElementById("eck4").removeEventListener("mousedown", click, true);
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20
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221
|
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34
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222 document.getElementById("lay1").removeEventListener("mousemove", move, true);
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223 document.getElementById("eck4").removeEventListener("mousemove", move, true);
|
|
20
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224
|
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34
|
225 document.getElementById("eck1").style.visibility="hidden";
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|
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226 document.getElementById("eck2").style.visibility="hidden";
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227 document.getElementById("eck3").style.visibility="hidden";
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|
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228 document.getElementById("eck4").style.visibility="hidden";
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|
20
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229
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34
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230 att[5] = cropFloat(att[5]+att[7]*((x1 < x2) ? x1 : x2)/document.pic.offsetWidth);
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231 att[6] = cropFloat(att[6]+att[8]*((y1 < y2) ? y1 : y2)/document.pic.offsetHeight);
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|
20
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232
|
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34
|
233 att[7] = cropFloat(att[7]*Math.abs(x1-x2)/document.pic.offsetWidth);
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234 att[8] = cropFloat(att[8]*Math.abs(y1-y2)/document.pic.offsetHeight);
|
|
20
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235
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|
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236 if (att[7] != 0 && att[8] != 0) {
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237 loadPicture(2);
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|
|
238 }
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|
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239 }
|
|
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240 }
|
|
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241
|
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34
|
242 function move(event) {
|
|
20
|
243
|
|
|
244 x2 = event.pageX;
|
|
|
245 y2 = event.pageY;
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|
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246
|
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34
|
247 document.getElementById("eck1").style.left = ((x1 < x2) ? x1 : x2);
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|
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248 document.getElementById("eck1").style.top = ((y1 < y2) ? y1 : y2);
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|
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249 document.getElementById("eck2").style.left = ((x1 < x2) ? x2 : x1)-12;
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|
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250 document.getElementById("eck2").style.top = ((y1 < y2) ? y1 : y2);
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|
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251 document.getElementById("eck3").style.left = ((x1 < x2) ? x1 : x2);
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|
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252 document.getElementById("eck3").style.top = ((y1 < y2) ? y2 : y1)-12;
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|
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253 document.getElementById("eck4").style.left = ((x1 < x2) ? x2 : x1)-12;
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|
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254 document.getElementById("eck4").style.top = ((y1 < y2) ? y2 : y1)-12;
|
|
20
|
255 }
|
|
|
256
|
|
34
|
257 document.getElementById("lay1").addEventListener("mousedown", click, true);
|
|
|
258 document.getElementById("eck4").addEventListener("mousedown", click, true);
|
|
20
|
259 }
|
|
|
260
|
|
|
261
|
|
34
|
262 function zoomPoint() {
|
|
20
|
263
|
|
34
|
264 function zoomPointEvent(event) {
|
|
20
|
265
|
|
34
|
266 att[5] = cropFloat(att[5]+att[7]*(event.pageX-parseInt(document.getElementById("lay1").style.left))/document.pic.offsetWidth-0.5*att[7]*0.7);
|
|
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267 att[6] = cropFloat(att[6]+att[8]*(event.pageY-parseInt(document.getElementById("lay1").style.top))/document.pic.offsetHeight-0.5*att[8]*0.7);
|
|
20
|
268
|
|
|
269 att[7] = cropFloat(att[7]*0.7);
|
|
|
270 att[8] = cropFloat(att[8]*0.7);
|
|
|
271
|
|
|
272 if (att[5] < 0) {
|
|
|
273 att[5] = 0;
|
|
|
274 }
|
|
|
275 if (att[6] < 0) {
|
|
|
276 att[6] = 0;
|
|
|
277 }
|
|
|
278 if (att[5]+att[7] > 1) {
|
|
|
279 att[5] = 1-att[7];
|
|
|
280 }
|
|
|
281 if (att[6]+att[8] > 1) {
|
|
|
282 att[6] = 1-att[8];
|
|
|
283 }
|
|
|
284
|
|
34
|
285 document.getElementById("lay1").removeEventListener("mousedown", zoomPointEvent, true);
|
|
20
|
286
|
|
|
287 loadPicture(2);
|
|
|
288 }
|
|
|
289
|
|
34
|
290 document.getElementById("lay1").addEventListener("mousedown", zoomPointEvent, true);
|
|
20
|
291 }
|
|
|
292
|
|
|
293
|
|
34
|
294 function zoomOut() {
|
|
20
|
295
|
|
|
296 loadPicture(1);
|
|
|
297 }
|
|
|
298
|
|
|
299
|
|
34
|
300 function moveTo() {
|
|
20
|
301
|
|
34
|
302 function moveToEvent(event) {
|
|
20
|
303
|
|
34
|
304 att[5] = cropFloat(att[5]+att[7]*(event.pageX-parseInt(document.getElementById("lay1").style.left))/document.pic.offsetWidth-0.5*att[7]);
|
|
|
305 att[6] = cropFloat(att[6]+att[8]*(event.pageY-parseInt(document.getElementById("lay1").style.top))/document.pic.offsetHeight-0.5*att[8]);
|
|
20
|
306
|
|
|
307 if (att[5] < 0) {
|
|
|
308 att[5] = 0;
|
|
|
309 }
|
|
|
310 if (att[6] < 0) {
|
|
|
311 att[6] = 0;
|
|
|
312 }
|
|
|
313 if (att[5]+att[7] > 1) {
|
|
|
314 att[5] = 1-att[7];
|
|
|
315 }
|
|
|
316 if (att[6]+att[8] > 1) {
|
|
|
317 att[6] = 1-att[8];
|
|
|
318 }
|
|
|
319
|
|
34
|
320 document.getElementById("lay1").removeEventListener("mousedown", moveToEvent, true);
|
|
20
|
321
|
|
|
322 loadPicture(2);
|
|
|
323 }
|
|
|
324
|
|
34
|
325 document.getElementById("lay1").addEventListener("mousedown", moveToEvent, true);
|
|
20
|
326 }
|
|
|
327
|
|
|
328
|
|
34
|
329 function scale(scaledef) {
|
|
20
|
330
|
|
|
331 att[2] = scaledef;
|
|
|
332 loadPicture(2);
|
|
|
333 }
|
|
|
334
|
|
|
335
|
|
34
|
336 function setMarks() {
|
|
20
|
337
|
|
|
338 if (att[4] != "" && att[4] != "0/0") {
|
|
|
339 var mark = att[4].split(";");
|
|
|
340
|
|
|
341 var countMarks = mark.length;
|
|
|
342
|
|
|
343 // maximum of marks is 8
|
|
|
344 // we do not report this error because this is already done in func. "Mark"
|
|
|
345 if (countMarks > 8) countMarks = 8;
|
|
|
346
|
|
34
|
347 var picWidth = document.pic.offsetWidth;
|
|
|
348 var picHeight = document.pic.offsetHeight;
|
|
20
|
349
|
|
|
350 // catch the cases where the picture had not been loaded already and
|
|
|
351 // make a timeout so that the coordinates are calculated with the real dimensions
|
|
34
|
352 if (document.pic.complete) {
|
|
|
353 var xoffset = parseInt(document.getElementById("lay1").style.left);
|
|
|
354 var yoffset = parseInt(document.getElementById("lay1").style.top);
|
|
20
|
355
|
|
|
356 for (var i = 0; i < countMarks; i++) {
|
|
|
357 mark[i] = mark[i].split("/");
|
|
|
358
|
|
|
359 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]))) {
|
|
|
360
|
|
|
361 mark[i][0] = parseInt(xoffset+picWidth*(mark[i][0]-att[5])/att[7]);
|
|
|
362 mark[i][1] = parseInt(yoffset+picHeight*(mark[i][1]-att[6])/att[8]);
|
|
|
363
|
|
|
364
|
|
34
|
365 document.getElementById("dot" + i).style.left = mark[i][0]-5;
|
|
|
366 document.getElementById("dot" + i).style.top = mark[i][1]-5;
|
|
|
367 document.getElementById("dot" + i).style.visibility = "visible";
|
|
20
|
368 }
|
|
|
369 }
|
|
|
370 } else {
|
|
34
|
371 setTimeout("setMarks()", 100);
|
|
20
|
372 }
|
|
|
373 }
|
|
|
374 }
|
|
|
375
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376 // capturing keypresses for next and previous page
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377 // ascii-values of n = 110, b = 98
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378 function parseKeypress (event) {
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379 if (event.charCode == 110) {
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380 Nextpage();
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381 }
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382 if (event.charCode == 98) {
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383 Backpage();
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384 }
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385 }
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386
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387
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388 // auxiliary function to crop senseless precicsion
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389 function cropFloat(tmp) {
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390 return parseInt(10000*tmp)/10000;
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391 }
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