digilib-old: client/digitallibrary/jquery/jquery.digilib.birdseye.js annotate

annotate client/digitallibrary/jquery/jquery.digilib.birdseye.js @ 800:65e70c03870b stream

merge from juqery branch 12f790cb30de0ac42ff62fb9921d7a3215243b7b

author	robcast
date	Sat, 19 Feb 2011 09:56:18 +0100
parents	12f790cb30de
children	ae8e98c479d5

rev	line source
799 12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	1 /**
12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	2 digilib bird's eye view plugin
791 304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	3 */
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	4
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	5 (function($) {
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	6
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	7 // affine geometry plugin stub
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	8 var geom;
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	9
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	10 var FULL_AREA;
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	11
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	12 var buttons = {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	13 bird : {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	14 onclick : "showBirdDiv",
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	15 tooltip : "show bird's eye view",
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	16 icon : "birds-eye.png"
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	17 }
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	18 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	19
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	20 var defaults = {
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	21 // is birdView shown?
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	22 'isBirdDivVisible' : false,
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	23 // dimensions of bird's eye div
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	24 'birdDivWidth' : 200,
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	25 'birdDivHeight' : 200,
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	26 // parameters used by bird's eye div
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	27 'birdDivParams' : ['fn','pn','dw','dh']
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	28 };
799 12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	29
791 304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	30 var actions = {
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	31 // event handler: toggles the visibility of the bird's eye window
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	32 showBirdDiv : function (data, show) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	33 var settings = data.settings;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	34 if (data.$birdDiv == null) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	35 // no bird div -> create
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	36 setupBirdDiv(data);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	37 }
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	38 var on = digilib.fn.showDiv(settings.isBirdDivVisible, data.$birdDiv, show);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	39 settings.isBirdDivVisible = on;
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	40 digilib.fn.highlightButtons(data, 'bird', on);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	41 updateBirdDiv(data);
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	42 digilib.fn.storeOptions(data);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	43 }
799 12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	44 };
12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	45
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	46 // plugin installation called by digilib on plugin object.
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	47 var install = function(digilib) {
791 304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	48 // import geometry classes
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	49 geom = digilib.fn.geometry;
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	50 FULL_AREA = geom.rectangle(0,0,1,1);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	51 // add defaults
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	52 $.extend(digilib.defaults, defaults);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	53 // add actions
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	54 $.extend(digilib.actions, actions);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	55 // add buttons
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	56 $.extend(digilib.buttons, buttons);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	57 // insert in button list -- not elegant
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	58 digilib.defaults.buttonSettings.fullscreen.standardSet.splice(9, 0, 'bird');
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	59 digilib.defaults.buttonSettings.embedded.standardSet.splice(5, 0, 'bird');
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	60 };
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	61
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	62 // plugin initialization
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	63 var init = function (data) {
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	64 var $data = $(data);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	65 // install event handler
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	66 $data.bind('setup', handleSetup);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	67 $data.bind('update', handleUpdate);
796 6aa9908303f1 added redisplay handler to birdseye. updated plugin docu. robcast parents: 795 diff changeset	68 $data.bind('redisplay', handleRedisplay);
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	69 $data.bind('dragZoom', handleDragZoom);
791 304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	70 };
799 12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	71
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	72
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	73 var handleSetup = function (evt) {
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	74 console.debug("birdseye: handleSetup");
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	75 data = this;
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	76 // bird's eye view creation
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	77 if (data.settings.isBirdDivVisible) {
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	78 setupBirdDiv(data);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	79 data.$birdDiv.show();
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	80 }
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	81 };
799 12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	82
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	83 var handleUpdate = function (evt) {
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	84 console.debug("birdseye: handleUpdate");
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	85 data = this;
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	86 if (data.settings.isBirdDivVisible) {
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	87 renderBirdArea(data);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	88 setupBirdDrag(data);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	89 }
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	90 };
799 12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	91
796 6aa9908303f1 added redisplay handler to birdseye. updated plugin docu. robcast parents: 795 diff changeset	92 var handleRedisplay = function (evt) {
6aa9908303f1 added redisplay handler to birdseye. updated plugin docu. robcast parents: 795 diff changeset	93 console.debug("birdseye: handleRedisplay");
6aa9908303f1 added redisplay handler to birdseye. updated plugin docu. robcast parents: 795 diff changeset	94 data = this;
6aa9908303f1 added redisplay handler to birdseye. updated plugin docu. robcast parents: 795 diff changeset	95 if (data.settings.isBirdDivVisible) {
6aa9908303f1 added redisplay handler to birdseye. updated plugin docu. robcast parents: 795 diff changeset	96 updateBirdDiv(data);
6aa9908303f1 added redisplay handler to birdseye. updated plugin docu. robcast parents: 795 diff changeset	97 }
6aa9908303f1 added redisplay handler to birdseye. updated plugin docu. robcast parents: 795 diff changeset	98 };
799 12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	99
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	100 var handleDragZoom = function (evt, zoomArea) {
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	101 //console.debug("birdseye: handleDragZoom za="+zoomArea);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	102 data = this;
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	103 if (data.settings.isBirdDivVisible) {
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	104 setBirdZoom(data, zoomArea);
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	105 }
00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	106 };
799 12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	107
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	108 // returns URL for bird's eye view image
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	109 var getBirdImgUrl = function (data) {
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	110 var settings = data.settings;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	111 var birdDivOptions = {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	112 dw : settings.birdDivWidth,
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	113 dh : settings.birdDivHeight
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	114 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	115 var birdSettings = $.extend({}, settings, birdDivOptions);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	116 // use only the relevant parameters
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	117 var params = digilib.fn.getParamString(birdSettings, settings.birdDivParams, digilib.defaults);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	118 var url = settings.scalerBaseUrl + '?' + params;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	119 return url;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	120 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	121
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	122 // creates HTML structure for the bird's eye view in elem
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	123 var setupBirdDiv = function (data) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	124 var $elem = data.$elem;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	125 // the bird's eye div
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	126 var $birdDiv = $('<div class="birdview" style="display:none"/>');
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	127 // the detail indicator frame
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	128 var $birdZoom = $('<div class="birdzoom" style="display:none; background-color:transparent;"/>');
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	129 // the small image
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	130 var $birdImg = $('<img class="birdimg"/>');
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	131 data.$birdDiv = $birdDiv;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	132 data.$birdZoom = $birdZoom;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	133 data.$birdImg = $birdImg;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	134 $elem.append($birdDiv);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	135 $birdDiv.append($birdZoom);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	136 $birdDiv.append($birdImg);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	137 // $birdZoom.css(data.settings.birdIndicatorStyle);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	138 var birdUrl = getBirdImgUrl(data);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	139 $birdImg.load(birdImgLoadedHandler(data));
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	140 $birdImg.error(function () {console.error("error loading birdview image");});
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	141 $birdImg.attr('src', birdUrl);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	142 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	143
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	144 // update bird's eye view
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	145 var updateBirdDiv = function (data) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	146 if (!data.settings.isBirdDivVisible) return;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	147 var $birdImg = data.$birdImg;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	148 var oldsrc = $birdImg.attr('src');
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	149 var newsrc = getBirdImgUrl(data);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	150 if (oldsrc !== newsrc) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	151 $birdImg.attr('src', newsrc);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	152 // onload handler re-renders
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	153 } else {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	154 // re-render
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	155 renderBirdArea(data);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	156 // enable click and drag
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	157 setupBirdDrag(data);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	158 }
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	159 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	160
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	161 // returns function for load event of bird's eye view img
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	162 var birdImgLoadedHandler = function (data) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	163 return function () {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	164 var $birdImg = $(this);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	165 var birdRect = geom.rectangle($birdImg);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	166 console.debug("birdImg loaded!", $birdImg, "rect=", birdRect, "data=", data);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	167 if (birdRect.width === 0) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	168 // malheureusement IE7 calls load handler when there is no size info yet
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	169 setTimeout(function () { $birdImg.triggerHandler('load'); }, 200);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	170 }
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	171 // update display (zoom area indicator)
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	172 digilib.fn.updateDisplay(data);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	173 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	174 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	175
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	176 // show zoom area indicator on bird's eye view
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	177 var renderBirdArea = function (data) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	178 if (data.$birdImg == null \|\| ! data.$birdImg.get(0).complete) return;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	179 var $birdZoom = data.$birdZoom;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	180 var zoomArea = data.zoomArea;
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	181 var normalSize = digilib.fn.isFullArea(zoomArea);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	182 if (normalSize) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	183 $birdZoom.hide();
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	184 return;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	185 } else {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	186 $birdZoom.show();
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	187 }
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	188 // create Transform from current area and picsize
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	189 data.birdTrafo = digilib.fn.getImgTrafo(data.$birdImg, FULL_AREA);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	190 var zoomRect = data.birdTrafo.transform(zoomArea);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	191 console.debug("renderBirdArea:", zoomRect, "zoomArea:", zoomArea, "$birdTrafo:", data.birdTrafo);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	192 // acount for border width
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	193 var bw = digilib.fn.getBorderWidth($birdZoom);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	194 zoomRect.addPosition({x : -bw, y : -bw});
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	195 if (data.settings.interactionMode === 'fullscreen') {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	196 // no animation for fullscreen
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	197 zoomRect.adjustDiv($birdZoom);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	198 } else {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	199 // nice animation for embedded mode :-)
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	200 // correct offsetParent because animate doesn't use offset
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	201 var ppos = $birdZoom.offsetParent().offset();
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	202 var dest = {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	203 left : (zoomRect.x - ppos.left) + 'px',
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	204 top : (zoomRect.y - ppos.top) + 'px',
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	205 width : zoomRect.width,
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	206 height : zoomRect.height
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	207 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	208 $birdZoom.animate(dest);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	209 }
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	210 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	211
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	212 // bird's eye view zoom area click and drag handler
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	213 var setupBirdDrag = function(data) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	214 var $birdImg = data.$birdImg;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	215 var $birdZoom = data.$birdZoom;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	216 var $document = $(document);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	217 var $scaler = data.$scaler;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	218 var startPos, newRect, birdImgRect, birdZoomRect, fullRect, scalerPos;
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	219 var bw = digilib.fn.getBorderWidth($birdZoom);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	220
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	221 // mousedown handler: start dragging bird zoom to a new position
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	222 var birdZoomStartDrag = function(evt) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	223 startPos = geom.position(evt);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	224 // position may have changed
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	225 data.birdTrafo = digilib.fn.getImgTrafo($birdImg, FULL_AREA);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	226 birdImgRect = geom.rectangle($birdImg);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	227 birdZoomRect = geom.rectangle($birdZoom);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	228 scalerPos = geom.position($scaler);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	229 newRect = null;
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	230 fullRect = digilib.fn.setZoomBG(data); // setup zoom background image
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	231 $document.bind("mousemove.dlBirdMove", birdZoomMove);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	232 $document.bind("mouseup.dlBirdMove", birdZoomEndDrag);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	233 return false;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	234 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	235
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	236 // mousemove handler: drag
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	237 var birdZoomMove = function(evt) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	238 var pos = geom.position(evt);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	239 var delta = startPos.delta(pos);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	240 // move birdZoom div, keeping size
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	241 newRect = birdZoomRect.copy();
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	242 newRect.addPosition(delta);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	243 newRect.stayInside(birdImgRect);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	244 // reflect birdview zoom position in scaler image
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	245 var area = data.birdTrafo.invtransform(newRect);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	246 var imgArea = data.imgTrafo.transform(area);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	247 var offset = imgArea.getPosition().neg();
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	248 offset.add(scalerPos);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	249 if (fullRect) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	250 var bgPos = fullRect.getPosition().add(offset);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	251 } else {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	252 var bgPos = offset;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	253 }
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	254 // move the background image to the new position
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	255 data.$scaler.css({
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	256 'background-position' : bgPos.x + "px " + bgPos.y + "px"
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	257 });
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	258 // acount for border width
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	259 newRect.addPosition({x : -bw, y : -bw});
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	260 newRect.adjustDiv($birdZoom);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	261 return false;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	262 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	263
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	264 // mouseup handler: reload page
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	265 var birdZoomEndDrag = function(evt) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	266 var settings = data.settings;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	267 $document.unbind("mousemove.dlBirdMove", birdZoomMove);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	268 $document.unbind("mouseup.dlBirdMove", birdZoomEndDrag);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	269 if (newRect == null) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	270 // no movement happened - set center to click position
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	271 startPos = birdZoomRect.getCenter();
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	272 birdZoomMove(evt);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	273 }
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	274 // ugly, but needed to prevent double border width compensation
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	275 newRect.addPosition({x : bw, y : bw});
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	276 var newArea = data.birdTrafo.invtransform(newRect);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	277 data.zoomArea = newArea;
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	278 digilib.fn.redisplay(data);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	279 return false;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	280 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	281
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	282 // clear old handler
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	283 $document.unbind(".dlBirdMove");
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	284 $birdImg.unbind(".dlBirdMove");
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	285 $birdZoom.unbind(".dlBirdMove");
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	286 if (! digilib.fn.isFullArea(data.zoomArea)) {
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	287 // set new handler
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	288 $birdImg.bind("mousedown.dlBirdMove", birdZoomStartDrag);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	289 $birdZoom.bind("mousedown.dlBirdMove", birdZoomStartDrag);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	290 }
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	291 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	292
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	293 // move bird zoom indicator to reflect zoomed detail area
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	294 var setBirdZoom = function(data, rect) {
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	295 var part = data.imgTrafo.invtransform(rect);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	296 // area = FULL_AREA.fit(part); // no, we want to see where we transcend the borders
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	297 birdTrafo = digilib.fn.getImgTrafo(data.$birdImg, FULL_AREA);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	298 var birdRect = birdTrafo.transform(part);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	299 var $birdZoom = data.$birdZoom;
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	300 // acount for border width
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	301 var bw = digilib.fn.getBorderWidth($birdZoom);
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	302 birdRect.addPosition({x : -bw, y : -bw});
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	303 birdRect.adjustDiv(data.$birdZoom);
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	304 };
63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	305
791 304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	306 // plugin object with name and init
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	307 // shared objects filled by digilib on registration
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	308 var digilib = {
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	309 name : 'birdseye',
793 63c1b33e38b1 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 791 diff changeset	310 install : install,
795 00d37112d062 birds eye view now as a plugin. robcast parents: 793 diff changeset	311 init : init,
791 304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	312 buttons : {},
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	313 actions : {},
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	314 fn : {},
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	315 plugins : {}
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	316 };
799 12f790cb30de started to adapt regions plugin to new plugin mechanism hertzhaft parents: 796 diff changeset	317
791 304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	318 if ($.fn.digilib == null) {
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	319 $.error("jquery.digilib.birdview must be loaded after jquery.digilib!");
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	320 } else {
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	321 $.fn.digilib('plugin', digilib);
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	322 }
304488c72344 first step to birdseye view as a plugin. robcast parents: diff changeset	323 })(jQuery);