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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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41
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70 var newQuery = "fn=" + att[0] + "&pn=" + att[1] + "&ws=" + att[2] + "&mo=" + att[3];
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20
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71
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72 if (detailGrade == 0) {
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73 att[4] = "0/0";
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74 }
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75
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76 if ((detailGrade == 1) || (detailGrade == 0 && !keepArea)) {
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77 att[5] = 0;
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78 att[6] = 0;
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79 att[7] = 1;
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80 att[8] = 1;
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81 }
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34
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82
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41
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83 newQuery += "&mk=" + att[4] + "&wx=" + att[5] + "&wy=" + att[6] + "&ww=" + att[7] + "&wh=" + att[8];
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84 newQuery += "&dw=" + (innerWidth-30) + "&dh=" + (innerHeight-30);
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20
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85
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34
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86 // debug window - checking the parameters passed to the next image
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41
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87 //alert ("DEBUG MESSAGE (query-string in loadPicture):\n\n" + newQuery);
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20
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88
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41
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89 location.href = location.pathname + "?" + newQuery;
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20
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90 }
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91
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92
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38
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93 // constructor holding different values of a point
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94 function Point(event) {
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95
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96 this.pageX = parseInt(event.pageX);
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97 this.pageY = parseInt(event.pageY);
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98
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99 this.x = this.pageX-parseInt(document.getElementById("lay1").style.left);
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100 this.y = this.pageY-parseInt(document.getElementById("lay1").style.top);
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101
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102 this.relX = cropFloat(att[5]+(att[7]*this.x/document.pic.offsetWidth));
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103 this.relY = cropFloat(att[6]+(att[8]*this.y/document.pic.offsetHeight));
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104
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105 return this;
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106 }
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107
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108
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34
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109 function backPage(keepArea) {
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20
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110
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111 att[1] = parseInt(att[1]) - 1;
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112
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113 if (att[1] > 0) {
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114 loadPicture(0, keepArea);
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115 } else {
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116 att[1] = parseInt(att[1]) + 1;
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117 alert("You are already on the first page!");
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118 }
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119 }
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120
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121
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34
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122 function nextPage(keepArea) {
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20
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123
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124 att[1] = parseInt(att[1]) + 1;
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125
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34
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126 loadPicture(0, keepArea);
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20
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127 }
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128
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129
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34
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130 function page(keepArea) {
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20
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131
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132 do {
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34
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133 page = prompt("Goto Page:", 1);
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134 } while ((page != null) && (page < 1));
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20
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135
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136 if (page != null && page != att[1]) {
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137 att[1] = page;
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138 loadPicture(0, keepArea);
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139 }
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140 }
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141
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142
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34
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143 function digicat() {
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50
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144 var url = "digicat.html?" + att[0] + "+" + att[1];
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20
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145 win = window.open(url, "digicat");
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146 win.focus();
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147 }
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148
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149
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34
|
150 function ref(refselect) {
|
|
20
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151
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50
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152 var hyperlinkRef = baseUrl + "/digilib.jsp?";
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20
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153 hyperlinkRef += att[0] + "+" + att[1] + "+" + att[2] + "+" + att[3] + "+" + att[4];
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154
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155 if ((att[5] != 0) || (att[6] != 0) || (att[7] != 1) || (att[8] != 1)) {
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156 hyperlinkRef += "+" + att[5] + "+" + att[6] + "+" + att[7] + "+" + att[8];
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157 }
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158
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159 if (refselect == 1) {
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160 prompt("Link for HTML--documents", hyperlinkRef);
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161 } else {
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162 prompt("Link for LaTeX--documents", "\\href{" + hyperlinkRef + "}{TEXT}");
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163 }
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164 }
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165
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166
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34
|
167 function mark() {
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20
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168
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169 if (att[4].split(";").length > 7) {
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170 alert("Only 8 marks are possible at the moment!");
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171 return;
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172 }
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173
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34
|
174 function markEvent(event) {
|
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38
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175 var point = new Point(event);
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20
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176
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177 if ((att[4] != "") && (att[4] != "0/0")) {
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178 att[4] += ";";
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179 } else {
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180 att[4] = "";
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181 }
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38
|
182 att[4] += point.relX + "/" + point.relY;
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20
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183
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34
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184 document.getElementById("lay1").removeEventListener("mousedown", markEvent, true);
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185 setMarks();
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20
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186 }
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187
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34
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188 document.getElementById("lay1").addEventListener("mousedown", markEvent, true);
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20
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189 }
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190
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191
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34
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192 function zoomArea() {
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20
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193 var state = 0;
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38
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194 var pt1, pt2;
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20
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195
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34
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196 function click(event) {
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20
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197
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198 if (state == 0) {
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199 state = 1;
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200
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38
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201 pt1 = new Point(event);
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202 pt2 = pt1;
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20
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203
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38
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204 document.getElementById("eck1").style.left = pt1.pageX;
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205 document.getElementById("eck1").style.top = pt1.pageY;
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206 document.getElementById("eck2").style.left = pt2.pageX-12;
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207 document.getElementById("eck2").style.top = pt1.pageY;
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208 document.getElementById("eck3").style.left = pt1.pageX;
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209 document.getElementById("eck3").style.top = pt2.pageY-12;
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210 document.getElementById("eck4").style.left = pt2.pageX-12;
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211 document.getElementById("eck4").style.top = pt2.pageY-12;
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20
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212
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34
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213 document.getElementById("eck1").style.visibility="visible";
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214 document.getElementById("eck2").style.visibility="visible";
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215 document.getElementById("eck3").style.visibility="visible";
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216 document.getElementById("eck4").style.visibility="visible";
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20
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217
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34
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218 document.getElementById("lay1").addEventListener("mousemove", move, true);
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219 document.getElementById("eck4").addEventListener("mousemove", move, true);
|
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20
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220
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221 } else {
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222
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38
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223 pt2 = new Point(event);
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224
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34
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225 document.getElementById("lay1").removeEventListener("mousedown", click, true);
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226 document.getElementById("eck4").removeEventListener("mousedown", click, true);
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20
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227
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34
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228 document.getElementById("lay1").removeEventListener("mousemove", move, true);
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229 document.getElementById("eck4").removeEventListener("mousemove", move, true);
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20
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230
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34
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231 document.getElementById("eck1").style.visibility="hidden";
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232 document.getElementById("eck2").style.visibility="hidden";
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233 document.getElementById("eck3").style.visibility="hidden";
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234 document.getElementById("eck4").style.visibility="hidden";
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20
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235
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38
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236 att[5] = Math.min(pt1.relX, pt2.relX);
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237 att[6] = Math.min(pt1.relY, pt2.relY);
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20
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238
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38
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239 att[7] = Math.abs(pt1.relX-pt2.relX);
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240 att[8] = Math.abs(pt1.relY-pt2.relY);
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20
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241
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242 if (att[7] != 0 && att[8] != 0) {
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243 loadPicture(2);
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244 }
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245 }
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|
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246 }
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247
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34
|
248 function move(event) {
|
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20
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249
|
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38
|
250 pt2 = new Point(event);
|
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20
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251
|
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38
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252 document.getElementById("eck1").style.left = ((pt1.pageX < pt2.pageX) ? pt1.pageX : pt2.pageX);
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253 document.getElementById("eck1").style.top = ((pt1.pageY < pt2.pageY) ? pt1.pageY : pt2.pageY);
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254 document.getElementById("eck2").style.left = ((pt1.pageX < pt2.pageX) ? pt2.pageX : pt1.pageX)-12;
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255 document.getElementById("eck2").style.top = ((pt1.pageY < pt2.pageY) ? pt1.pageY : pt2.pageY);
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|
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256 document.getElementById("eck3").style.left = ((pt1.pageX < pt2.pageX) ? pt1.pageX : pt2.pageX);
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257 document.getElementById("eck3").style.top = ((pt1.pageY < pt2.pageY) ? pt2.pageY : pt1.pageY)-12;
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258 document.getElementById("eck4").style.left = ((pt1.pageX < pt2.pageX) ? pt2.pageX : pt1.pageX)-12;
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259 document.getElementById("eck4").style.top = ((pt1.pageY < pt2.pageY) ? pt2.pageY : pt1.pageY)-12;
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20
|
260 }
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261
|
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34
|
262 document.getElementById("lay1").addEventListener("mousedown", click, true);
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|
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263 document.getElementById("eck4").addEventListener("mousedown", click, true);
|
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20
|
264 }
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265
|
|
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266
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34
|
267 function zoomPoint() {
|
|
20
|
268
|
|
34
|
269 function zoomPointEvent(event) {
|
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38
|
270 var point = new Point(event);
|
|
20
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271
|
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38
|
272 att[5] = cropFloat(point.relX-0.5*att[7]*0.7);
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273 att[6] = cropFloat(point.relY-0.5*att[8]*0.7);
|
|
20
|
274
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|
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275 att[7] = cropFloat(att[7]*0.7);
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276 att[8] = cropFloat(att[8]*0.7);
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277
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|
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278 if (att[5] < 0) {
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279 att[5] = 0;
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|
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280 }
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|
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281 if (att[6] < 0) {
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282 att[6] = 0;
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283 }
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|
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284 if (att[5]+att[7] > 1) {
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285 att[5] = 1-att[7];
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286 }
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|
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287 if (att[6]+att[8] > 1) {
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288 att[6] = 1-att[8];
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|
|
289 }
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|
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290
|
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34
|
291 document.getElementById("lay1").removeEventListener("mousedown", zoomPointEvent, true);
|
|
20
|
292
|
|
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293 loadPicture(2);
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|
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294 }
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|
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295
|
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34
|
296 document.getElementById("lay1").addEventListener("mousedown", zoomPointEvent, true);
|
|
20
|
297 }
|
|
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298
|
|
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299
|
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34
|
300 function zoomOut() {
|
|
20
|
301
|
|
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302 loadPicture(1);
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|
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303 }
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|
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304
|
|
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305
|
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34
|
306 function moveTo() {
|
|
20
|
307
|
|
34
|
308 function moveToEvent(event) {
|
|
20
|
309
|
|
38
|
310 var point = new Point(event);
|
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311
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|
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312 att[5] = cropFloat(point.relX-0.5*att[7]);
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313 att[6] = cropFloat(point.relY-0.5*att[8]);
|
|
20
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314
|
|
|
315 if (att[5] < 0) {
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316 att[5] = 0;
|
|
|
317 }
|
|
|
318 if (att[6] < 0) {
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319 att[6] = 0;
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|
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320 }
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|
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321 if (att[5]+att[7] > 1) {
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322 att[5] = 1-att[7];
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|
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323 }
|
|
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324 if (att[6]+att[8] > 1) {
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|
325 att[6] = 1-att[8];
|
|
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326 }
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327
|
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34
|
328 document.getElementById("lay1").removeEventListener("mousedown", moveToEvent, true);
|
|
20
|
329
|
|
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330 loadPicture(2);
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|
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331 }
|
|
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332
|
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34
|
333 document.getElementById("lay1").addEventListener("mousedown", moveToEvent, true);
|
|
20
|
334 }
|
|
|
335
|
|
|
336
|
|
34
|
337 function scale(scaledef) {
|
|
20
|
338
|
|
|
339 att[2] = scaledef;
|
|
|
340 loadPicture(2);
|
|
|
341 }
|
|
|
342
|
|
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343
|
|
34
|
344 function setMarks() {
|
|
20
|
345
|
|
|
346 if (att[4] != "" && att[4] != "0/0") {
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|
|
347 var mark = att[4].split(";");
|
|
|
348
|
|
|
349 var countMarks = mark.length;
|
|
|
350
|
|
|
351 // maximum of marks is 8
|
|
|
352 // we do not report this error because this is already done in func. "Mark"
|
|
|
353 if (countMarks > 8) countMarks = 8;
|
|
|
354
|
|
34
|
355 var picWidth = document.pic.offsetWidth;
|
|
|
356 var picHeight = document.pic.offsetHeight;
|
|
20
|
357
|
|
|
358 // catch the cases where the picture had not been loaded already and
|
|
|
359 // make a timeout so that the coordinates are calculated with the real dimensions
|
|
34
|
360 if (document.pic.complete) {
|
|
|
361 var xoffset = parseInt(document.getElementById("lay1").style.left);
|
|
|
362 var yoffset = parseInt(document.getElementById("lay1").style.top);
|
|
20
|
363
|
|
|
364 for (var i = 0; i < countMarks; i++) {
|
|
|
365 mark[i] = mark[i].split("/");
|
|
|
366
|
|
|
367 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]))) {
|
|
|
368
|
|
|
369 mark[i][0] = parseInt(xoffset+picWidth*(mark[i][0]-att[5])/att[7]);
|
|
|
370 mark[i][1] = parseInt(yoffset+picHeight*(mark[i][1]-att[6])/att[8]);
|
|
|
371
|
|
|
372
|
|
34
|
373 document.getElementById("dot" + i).style.left = mark[i][0]-5;
|
|
|
374 document.getElementById("dot" + i).style.top = mark[i][1]-5;
|
|
|
375 document.getElementById("dot" + i).style.visibility = "visible";
|
|
20
|
376 }
|
|
|
377 }
|
|
|
378 } else {
|
|
34
|
379 setTimeout("setMarks()", 100);
|
|
20
|
380 }
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381 }
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382 }
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383
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384 // capturing keypresses for next and previous page
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385 // ascii-values of n = 110, b = 98
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386 function parseKeypress (event) {
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387 if (event.charCode == 110) {
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388 Nextpage();
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389 }
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390 if (event.charCode == 98) {
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391 Backpage();
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392 }
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393 }
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394
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395
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396 // auxiliary function to crop senseless precicsion
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397 function cropFloat(tmp) {
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398 return parseInt(10000*tmp)/10000;
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399 }
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