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diff client/digitallibrary/navcat_n4.js @ 6:254fca7a21ce vendor

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First import of client module
author robcast
date Thu, 17 Jan 2002 15:29:52 +0100
parents
children 84a481a388bb 85126da2ae21
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/client/digitallibrary/navcat_n4.js	Thu Jan 17 15:29:52 2002 +0100
@@ -0,0 +1,135 @@
+/* navcat_n4 -- JS library for digilib (Netscape4 version)
+
+  Digital Image Library servlet components
+
+  Copyright (C) 2001, 2002 Christian Luginbuehl (luginbuehl@student.unibe.ch)
+
+  This program is free software; you can redistribute  it and/or modify it
+  under  the terms of  the GNU General  Public License as published by the
+  Free Software Foundation;  either version 2 of the  License, or (at your
+  option) any later version.
+   
+  Please read license.txt for the full details. A copy of the GPL
+  may be found at http://www.gnu.org/copyleft/lgpl.html
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+*/
+
+// these two global variables have to be initialised before the frist use of the functions below
+// to fill in the attributes you can use the function initPicture provided below
+// - array with all attributes
+var att = new Array();
+
+// - variable to store the path to the frame, in which the pictures should be created
+var whichFrame = parent.mainFrame;
+
+// give a name to the window containing digicat - this way one can test if there is already a
+// digicat-window open and replace the contents of it (ex. digilib)
+window.name = "digicat";
+
+function loadThumbTable() {
+	tableWidth = whichFrame.innerWidth-30;
+	tableHeight = whichFrame.innerHeight-30;
+
+	cellWidth = Math.floor(tableWidth/att[3])-6;
+	cellHeight = Math.floor(tableHeight/att[2])-4;
+	
+//	alert(tableWidth + "   " + tableHeight + "\n" + cellWidth + "   " +cellHeight);
+
+	whichFrame.document.open();
+	whichFrame.document.write('<html><head>');
+	whichFrame.document.write('<style type="text/css">.myFont {font-family: sans-serif, Arial; font-size: 11px; color: #FFFFFF}</style>');
+	whichFrame.document.write('<script language="Javascript">');
+	whichFrame.document.write('function loadDigilib(idx) {');
+	whichFrame.document.write('linkRef = "http://' + location.host + '/docuserver/digitallibrary/digilib.html?' + parent.att[0] + '+" + idx;');
+	whichFrame.document.write('win = window.open(linkRef, "digilib");');
+	whichFrame.document.write('win.focus();');	
+	whichFrame.document.write('}');	
+	whichFrame.document.write('</script>');	
+
+
+	whichFrame.document.write('</head><body bgcolor="#666666">');
+	whichFrame.document.write('<table border="1" width="' + tableWidth + '" height="' + tableHeight + '">');
+	for (i = 0; i < att[2]; i++) {
+		whichFrame.document.write('<tr>');
+		for (j = 0; j < att[3]; j++) {
+			indexNr = parseInt(att[1])+i*parseInt(att[3])+j;
+			thumb  = "http://" + location.host + "/docuserver/digitallibrary/servlet/Scaler/"
+			thumb += att[0] + "?" + "pn=" + indexNr + "&ws=1.0&mo=fit&dw=" + cellWidth + "&dh=" + (cellHeight-25);
+			whichFrame.document.write('<td align="center" valign="middle" width="' + cellWidth + '" height="' + cellHeight + '" class="myFont">');
+			whichFrame.document.write('<a href="javascript:loadDigilib(' + indexNr + ')">');
+			whichFrame.document.write('<img src="' + thumb + '" border="0">');
+			whichFrame.document.write('</a><br>');
+			whichFrame.document.write(indexNr + '</td>');
+		}
+		whichFrame.document.write('</tr>');
+	}
+	whichFrame.document.write('</table></body></html>');
+	whichFrame.document.close();
+}
+
+
+function Backpage() {
+
+	if (att[1] <= 1) {
+		att[1] = 1;
+        alert("You are already on the first page!");
+	}
+	
+    att[1] = parseInt(att[1])-parseInt(att[2]*att[3]);
+
+    if (att[1] < 1) {
+    	att[1] = 1;
+    }
+	loadThumbTable();
+}
+
+
+function Nextpage() {
+
+    att[1] = parseInt(att[1])+parseInt(att[2]*att[3]);
+	loadThumbTable();
+}
+
+
+// capturing keypresses for next and previous page
+function parseKeypress(event) {
+	var whichCode = (window.Event) ? event.which : event.keyCode;
+	if (String.fromCharCode(whichCode) == "n") {
+		Nextpage();
+	}
+	if (String.fromCharCode(whichCode) == "b") {
+		Backpage();
+	}
+}
+
+
+// initialize browser specific things (keypress caputring)
+function initScripts() {
+	window.captureEvents(Event.KEYDOWN);
+	window.onkeydown = parseKeypress;
+}
+
+
+// fill in the values of the "att"-array
+function initPicture(picURL) {
+	att = picURL.split("+");
+
+	if (att[0].lastIndexOf("/") == att[0].length-1) {
+		att[0] = att[0].substring(0, att[0].length-1);
+	}
+	
+	if (att.length < 2 || att[1] == "") {
+		att[1] = 1;
+	}
+	if (att.length < 3 || att[2] == "") {
+		att[2] = 3;
+	}
+
+	if (att.length < 4) {
+		att[3] = 4;
+	}
+}