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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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17
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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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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 this.document.onkeypress = parseKeypress;
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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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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=" + (document.body.clientWidth-30) + "&dh=" + (document.body.clientHeight-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(document.body.scrollLeft+event.x);
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98 this.pageY = parseInt(document.body.scrollTop+event.y);
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99
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100 this.x = this.pageX-parseInt(document.all.lay1.style.left);
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101 this.y = this.pageY-parseInt(document.all.lay1.style.top);
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102
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103 this.relX = cropFloat(att[5]+(att[7]*this.x/document.all.lay1.offsetWidth));
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104 this.relY = cropFloat(att[6]+(att[8]*this.y/document.all.lay1.offsetHeight));
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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
|
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
|
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
|
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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|
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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
|
145 var url = "http://" + location.host + "/docuserver/digitallibrary/digicat.html?" + att[0] + "+" + att[1];
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|
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146 win = window.open(url, "digicat");
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147 win.focus();
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|
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148 }
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149
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|
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150
|
|
31
|
151 function ref(refselect) {
|
|
17
|
152
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|
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153 var hyperlinkRef = "http://" + location.host + "/docuserver/digitallibrary/digilib.jsp?";
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|
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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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|
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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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|
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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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|
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164 }
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|
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165 }
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|
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166
|
|
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167
|
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31
|
168 function mark(refselect) {
|
|
17
|
169
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|
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170 if (att[4].split(";").length > 7) {
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171 alert("Only 8 marks are possible at the moment!");
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172 return;
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|
|
173 }
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174
|
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31
|
175 document.all.lay1.onmousedown = function() {
|
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35
|
176 var point = new Point(event);
|
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17
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177
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|
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178 if ((att[4] != "") && (att[4] != "0/0")) {
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179 att[4] += ";";
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|
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180 } else {
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181 att[4] = "";
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|
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182 }
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183
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35
|
184 att[4] += point.relX + "/" + point.relY;
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17
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185
|
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31
|
186 document.all.lay1.cancleBubble = true;
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17
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187
|
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31
|
188 setMarks();
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17
|
189 }
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|
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190 }
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191
|
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192
|
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31
|
193 function zoomArea() {
|
|
17
|
194 var state = 0;
|
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35
|
195 var pt1, pt2;
|
|
17
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196
|
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31
|
197 function click() {
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17
|
198 if (state == 0) {
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199 state = 1;
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200
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35
|
201 pt1 = new Point(event);
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202 pt2 = pt1;
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17
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203
|
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35
|
204 document.all.eck1.style.left = pt1.pageX;
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205 document.all.eck1.style.top = pt1.pageY;
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206 document.all.eck2.style.left = pt2.pageX-12;
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207 document.all.eck2.style.top = pt1.pageY;
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208 document.all.eck3.style.left = pt1.pageX;
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209 document.all.eck3.style.top = pt2.pageY-12;
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210 document.all.eck4.style.left = pt2.pageX-12;
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211 document.all.eck4.style.top = pt2.pageY-12;
|
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17
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212
|
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31
|
213 document.all.eck1.style.visibility="visible";
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214 document.all.eck2.style.visibility="visible";
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215 document.all.eck3.style.visibility="visible";
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|
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216 document.all.eck4.style.visibility="visible";
|
|
17
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217
|
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31
|
218 document.all.lay1.onmousemove = move;
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219 document.all.eck4.onmousemove = move;
|
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17
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220
|
|
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221 } else {
|
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35
|
222 pt2 = new Point(event);
|
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17
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223
|
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31
|
224 document.all.eck1.visibility="hidden";
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225 document.all.eck2.visibility="hidden";
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226 document.all.eck3.visibility="hidden";
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227 document.all.eck4.visibility="hidden";
|
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17
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228
|
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31
|
229 document.all.lay1.cancleBubble = true;
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230 document.all.eck4.cancleBubble = true;
|
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17
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231
|
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35
|
232 att[5] = Math.min(pt1.relX, pt2.relX);
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233 att[6] = Math.min(pt1.relY, pt2.relY);
|
|
17
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234
|
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35
|
235 att[7] = Math.abs(pt1.relX-pt2.relX);
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|
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236 att[8] = Math.abs(pt1.relY-pt2.relY);
|
|
17
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237
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|
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238 if (att[7] != 0 && att[8] != 0) {
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|
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239 loadPicture(2);
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|
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240 }
|
|
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241 }
|
|
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242 }
|
|
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243
|
|
31
|
244 function move() {
|
|
35
|
245 pt2 = new Point(event);
|
|
17
|
246
|
|
35
|
247 document.all.eck1.style.left = ((pt1.pageX < pt2.pageX) ? pt1.pageX : pt2.pageX);
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|
|
248 document.all.eck1.style.top = ((pt1.pageY < pt2.pageY) ? pt1.pageY : pt2.pageY);
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|
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249 document.all.eck2.style.left = ((pt1.pageX < pt2.pageX) ? pt2.pageX : pt1.pageX)-12;
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|
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250 document.all.eck2.style.top = ((pt1.pageY < pt2.pageY) ? pt1.pageY : pt2.pageY);
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|
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251 document.all.eck3.style.left = ((pt1.pageX < pt2.pageX) ? pt1.pageX : pt2.pageX);
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|
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252 document.all.eck3.style.top = ((pt1.pageY < pt2.pageY) ? pt2.pageY : pt1.pageY)-12;
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|
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253 document.all.eck4.style.left = ((pt1.pageX < pt2.pageX) ? pt2.pageX : pt1.pageX)-12;
|
|
|
254 document.all.eck4.style.top = ((pt1.pageY < pt2.pageY) ? pt2.pageY : pt1.pageY)-12;
|
|
17
|
255 }
|
|
|
256
|
|
31
|
257 document.all.lay1.onmousedown = click;
|
|
|
258 document.all.eck4.onmousedown = click;
|
|
17
|
259 }
|
|
|
260
|
|
|
261
|
|
31
|
262 function zoomPoint() {
|
|
17
|
263
|
|
31
|
264 document.all.lay1.onmousedown = function() {
|
|
35
|
265 var point = new Point(event);
|
|
17
|
266
|
|
35
|
267 att[5] = cropFloat(point.relX-0.5*att[7]*0.7);
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|
|
268 att[6] = cropFloat(point.relY-0.5*att[8]*0.7);
|
|
17
|
269
|
|
|
270 att[7] = cropFloat(att[7]*0.7);
|
|
|
271 att[8] = cropFloat(att[8]*0.7);
|
|
|
272
|
|
|
273 if (att[5] < 0) {
|
|
|
274 att[5] = 0;
|
|
|
275 }
|
|
|
276 if (att[6] < 0) {
|
|
|
277 att[6] = 0;
|
|
|
278 }
|
|
|
279 if (att[5]+att[7] > 1) {
|
|
|
280 att[5] = 1-att[7];
|
|
|
281 }
|
|
|
282 if (att[6]+att[8] > 1) {
|
|
|
283 att[6] = 1-att[8];
|
|
|
284 }
|
|
|
285
|
|
31
|
286 document.all.lay1.cancleBubble = true;
|
|
17
|
287
|
|
|
288 loadPicture(2);
|
|
|
289 }
|
|
|
290 }
|
|
|
291
|
|
|
292
|
|
31
|
293 function zoomOut() {
|
|
17
|
294 loadPicture(1);
|
|
|
295 }
|
|
|
296
|
|
|
297
|
|
31
|
298 function moveTo() {
|
|
17
|
299
|
|
31
|
300 document.all.lay1.onmousedown = function() {
|
|
35
|
301 var point = new Point(event);
|
|
17
|
302
|
|
35
|
303 att[5] = cropFloat(point.relX-0.5*att[7]);
|
|
|
304 att[6] = cropFloat(point.relY-0.5*att[8]);
|
|
17
|
305
|
|
|
306 if (att[5] < 0) {
|
|
|
307 att[5] = 0;
|
|
|
308 }
|
|
|
309 if (att[6] < 0) {
|
|
|
310 att[6] = 0;
|
|
|
311 }
|
|
|
312 if (att[5]+att[7] > 1) {
|
|
|
313 att[5] = 1-att[7];
|
|
|
314 }
|
|
|
315 if (att[6]+att[8] > 1) {
|
|
|
316 att[6] = 1-att[8];
|
|
|
317 }
|
|
|
318
|
|
31
|
319 document.all.lay1.cancleBubble = true;
|
|
17
|
320
|
|
|
321 loadPicture(2);
|
|
|
322 }
|
|
|
323 }
|
|
|
324
|
|
|
325
|
|
31
|
326 function scale(scaledef) {
|
|
17
|
327
|
|
|
328 att[2] = scaledef;
|
|
|
329 loadPicture(2);
|
|
|
330 }
|
|
|
331
|
|
|
332
|
|
31
|
333 function setMarks() {
|
|
17
|
334 if ((att[4] != "") && (att[4] != "0/0")) {
|
|
|
335 var mark = att[4].split(";");
|
|
|
336
|
|
|
337 var countMarks = mark.length;
|
|
|
338
|
|
|
339 // maximum of marks is 8
|
|
|
340 // we do not report this error because this is already done in func. "Mark"
|
|
|
341 if (countMarks > 8) countMarks = 8;
|
|
|
342
|
|
31
|
343 var picWidth = document.all.lay1.offsetWidth;
|
|
|
344 var picHeight = document.all.lay1.offsetHeight;
|
|
17
|
345
|
|
|
346 // catch the cases where the picture had not been loaded already and
|
|
|
347 // make a timeout so that the coordinates are calculated with the real dimensions
|
|
|
348 if (picWidth > 30) {
|
|
|
349
|
|
31
|
350 var xoffset = parseInt(document.all.lay1.style.left);
|
|
|
351 var yoffset = parseInt(document.all.lay1.style.top);
|
|
17
|
352
|
|
|
353 for (var i = 0; i < countMarks; i++) {
|
|
|
354 mark[i] = mark[i].split("/");
|
|
|
355
|
|
|
356 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]))) {
|
|
|
357
|
|
|
358 mark[i][0] = parseInt(xoffset+picWidth*(mark[i][0]-att[5])/att[7]);
|
|
|
359 mark[i][1] = parseInt(yoffset+picHeight*(mark[i][1]-att[6])/att[8]);
|
|
|
360
|
|
31
|
361 document.getElementById("dot" + i).style.left = mark[i][0]-5;
|
|
|
362 document.getElementById("dot" + i).style.top = mark[i][1]-5;
|
|
|
363 document.getElementById("dot" + i).style.visibility = "visible";
|
|
17
|
364 }
|
|
|
365 }
|
|
|
366 } else {
|
|
31
|
367 setTimeout("setMarks()", 100);
|
|
17
|
368 }
|
|
|
369 }
|
|
|
370 }
|
|
|
371
|
|
|
372
|
|
|
373 // capturing keypresses for next and previous page
|
|
|
374 function parseKeypress() {
|
|
31
|
375 e = event;
|
|
17
|
376
|
|
|
377 if (e.keyCode == 110) {
|
|
|
378 Nextpage();
|
|
|
379 }
|
|
|
380 if (e.keyCode == 98) {
|
|
|
381 Backpage();
|
|
|
382 }
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31
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383 document.cancleBubble = true;
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17
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384 }
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385
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386
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387 // auxiliary function to crop senseless precicsion
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388 function cropFloat(tmp) {
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389 return parseInt(10000*tmp)/10000;
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390 }
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