digilib-old: client/digitallibrary/jquery/jquery.digilib.js comparison

comparison client/digitallibrary/jquery/jquery.digilib.js @ 631:4f7b52b97738 jquery

more work on initialisation

author	robcast
date	Tue, 18 Jan 2011 15:04:44 +0100
parents	b426efcc8a8e
children	73357f3dec20

comparison

equal deleted inserted replaced

-:b426efcc8a8e
+:4f7b52b97738
 // add parm=val
 paramString += key + '=' + settings[key];
 };
 }
 return paramString;
 };
+// processes some parameters into objects and stuff
+var unpackParams = function (data) {
+var settings = data.settings;
+// read zoom area
+var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh);
+settings.zoomArea = zoomArea;
+// read marks
+var marks = [];
+if (query.indexOf(";") >= 0) {
+var pa = query.split(";");    // old format with ";"
+} else {
+var pa = query.split(",");    // new format
+}
+for (var i = 0; i < pa.length ; i++) {
+var pos = pa[i].split("/");
+if (pos.length > 1) marks.push(geom.position(pos[0], pos[1]));
+}
+settings.marks = marks;
+};
+// put objects back into parameters
+var packParams = function (data) {
+var settings = data.settings;
+if (settings.zoomArea) {
+settings.wx = settings.zoomArea.x;
+settings.wy = settings.zoomArea.y;
+settings.ww = settings.zoomArea.width;
+settings.wh = settings.zoomArea.height;
+}
+if (settings.marks) {
+var ma = [];
+for (var i = 0; i < settings.marks.length; i++) {
+ma.push(cropFloat(settings.marks[i].x) + "/" + cropFloat(settings.marks[i].y));
+}
+settings.mk = ma.join(",");
+}
+};
 // returns URL and query string for Scaler
 var getScalerString = function (settings) {
 var keys = settings.scalerParamNames;
 var queryString = getParamString(settings, keys);
 var url = settings.scalerBaseUrl + '?' + queryString;
 var $elem = data.target;
 var $img = data.img;
 return function() {
 console.debug("img loaded! this=", this, " data=", data);
-var area = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh);
+var area = settings.zoomArea;
-settings.zoomArea = area;
 // create Transform from current area and picsize
 var picpos = $img.offset();
 var picrect = geom.rectangle(picpos.left, picpos.top, $img.width(), $img.height());
 var trafo = geom.transform();
 // subtract area offset and size
 //digilib.showBirdDiv(isBirdDivVisible);
 //digilib.showArrows(); // show arrow overlays for zoom navigation
 };
 };
+// auxiliary function to crop senseless precision
+var cropFloat = function (x) {
+return parseInt(10000 * x) / 10000;
+};
 // hook plugin into jquery
 $.fn.digilib = function(method) {
 if (methods[method]) {
 return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
 } else if (typeof(method) === 'object' || !method) {