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

comparison client/digitallibrary/jquery/jquery.digilib.js @ 696:09e06aa12c0d jquery

set quality works now (window.prompt only)

author	robcast
date	Fri, 28 Jan 2011 11:51:13 +0100
parents	53c75b4bc358
children	3379674e4e15

comparison

equal deleted inserted replaced

-:53c75b4bc358
+:09e06aa12c0d
 onclick : "javascript:setParamWin('rgb', '...')",
 tooltip : "set rgb values",
 img : "rgb.png"
 },
 quality : {
-onclick : "javascript:setQualityWin('Quality (0..2)')",
+onclick : "setquality",
 tooltip : "set image quality",
 img : "quality.png"
 },
 size : {
 onclick : "javascript:toggleSizeMenu()",
 // display more (or less) button sets
 morebuttons : function (data, more) {
 var settings = data.settings;
 if (more == null) {
-// toggle more or less
+// toggle more or less (only works for 2 sets)
 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length;
 if (settings.visibleButtonSets >= maxbtns) {
 more = '-1';
 } else {
 more = '+1';
 settings.visibleButtonSets++;
 }
 }
 },
+// reset image parameters to defaults
 reset : function (data) {
 var settings = data.settings;
 var paramNames = settings.digilibParamNames;
 var params = data.queryParams;
 resetData(data);
 $.extend(settings, params);
 };
 redisplay(data);
 },
-reference : function (data) {
+// presents a reference url (returns value if noprompt)
+reference : function (data, noprompt) {
 var settings = data.settings;
 var url;
 if (settings.interactionMode === 'fullscreen') {
 url = getDigilibUrl(data);
 } else {
 url = getScalerUrl(data);
 };
-window.prompt("URL reference to the current view", url);
+if (noprompt == null) {
+window.prompt("URL reference to the current view", url);
+}
+return url;
+},
+// set image quality
+setquality : function (data, qual) {
+var oldq = getQuality(data);
+if (qual == null) {
+qual = window.prompt("Image quality (0..2)", oldq);
+}
+qual = parseInt(qual, 10);
+if (qual >= 0 && qual <= 2) {
+setQuality(data, qual);
+redisplay(data);
+}
 }
 };
 // returns parameters from page url
 var parseQueryParams = function() {
 $birdImg.bind("mousedown.digilib", birdZoomStartDrag);
 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag);
 };
+// get image quality as a number (0..2)
+var getQuality = function (data) {
+var flags = data.scalerFlags;
+var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default
+return parseInt(q[1], 10);
+};
+// set image quality as a number (0..2)
+var setQuality = function (data, qual) {
+var flags = data.scalerFlags;
+// clear flags
+for (var i = 0; i < 3; ++i) {
+delete flags['q'+i];
+}
+flags['q'+qual] = 'q'+qual;
+};
 // sets a key to a value (relative values with +/- if relative=true)
 var setNumValue = function(settings, key, value) {
 if (isNumber(value)) return settings[key] = value;
 var sign = value.substring(0,1);
 if (sign === '+' || sign === '-') {