dojox
Version:
Dojo eXtensions, a rollup of many useful sub-projects and varying states of maturity – from very stable and robust, to alpha and experimental. See individual projects contain README files for details.
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HTML
<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" >
<head>
<title>Inspect DojoX GFX JSON</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
@import "../../../dojo/resources/dojo.css";
@import "../../../dijit/tests/css/dijitTests.css";
td.cell { padding: 1em 1em 0em 0em; }
td.note { font-size: 80%; }
</style>
<script type="text/javascript" src="../../../dojo/dojo.js"></script>
<script type="text/javascript">
dojo.require("dojox.gfx");
dojo.require("dojox.gfx.move");
dojo.require("dojox.gfx.utils");
surface = null;
container_pos = null;
mover = null;
init = function(){
// initialize graphics
var container = dojo.byId("gfx");
surface = dojox.gfx.createSurface(container, 500, 500);
container_pos = dojo.coords(container, true);
// wire UI
dojo.connect(dojo.byId("load"), "onclick", onLoad);
dojo.connect(dojo.byId("add"), "onclick", onAdd);
// handle moves
dojo.subscribe("/gfx/move/start", function(m){ mover = m; });
dojo.subscribe("/gfx/move/stop", function(){ mover = null; });
// handle shape operations
dojo.connect(document, "onkeydown", onKeyDown);
// cancel text selection and text dragging
dojo.connect(container, "ondragstart", dojo, "stopEvent");
dojo.connect(container, "onselectstart", dojo, "stopEvent");
};
onLoad = function(){
var s = dojo.byId("source");
if(!s.value){
alert("Name of the file is required.");
return;
}
dojo.xhrGet({
url: s.value,
preventCache: true,
handleAs: "json",
load: loadObjects,
error: function(r){ alert("Error: " + r); }
});
};
mainObject = null;
names = [];
loadObjects = function(r){
if(!r){
alert("Wrong JSON object. Did you type the file name correctly?");
return;
}
mainObject = r;
// clear old object names
names = [];
var s = dojo.byId("names"), ni = dojo.byId("names_info");
ni.innerHTML = "";
while(s.childNodes.length){ s.removeChild(s.lastChild); }
// find new names
findNames(s, dojo.byId("named").checked, "", mainObject);
ni.innerHTML = " (" + names.length + ")";
};
findNames = function(selector, named_only, prefix, o){
if(o instanceof Array){
for(var i = 0; i < o.length; ++i){
findNames(selector, named_only, prefix, o[i]);
}
return;
}
if(named_only && !("name" in o)) return;
var name = ("name" in o) ? o.name : "*",
full = prefix ? prefix + "/" + name : name,
opt = document.createElement("option");
opt.value = names.length;
opt.innerHTML = full;
names.push(o);
selector.appendChild(opt);
if("children" in o){
findNames(selector, named_only, full, o.children);
}
};
onAdd = function(){
var s = dojo.byId("names");
for(var i = 0; i < s.options.length; ++i){
var opt = s.options[i];
if(!opt.selected) continue;
var object = names[Number(opt.value)];
var group = surface.createGroup();
dojox.gfx.utils.deserialize(group, object);
new dojox.gfx.Moveable(group); // make it moveable as whole
}
};
// event handling
onKeyDown = function(e){
if(!mover) return;
switch(e.keyCode){
case "f".charCodeAt(0): case "F".charCodeAt(0):
mover.shape.moveToFront();
break;
case "b".charCodeAt(0): case "B".charCodeAt(0):
mover.shape.moveToBack();
break;
case "q".charCodeAt(0): case "Q".charCodeAt(0):
mover.shape.applyLeftTransform(dojox.gfx.matrix.rotategAt(-15, mover.lastX - container_pos.x, mover.lastY - container_pos.y));
break;
case "w".charCodeAt(0): case "W".charCodeAt(0):
mover.shape.applyLeftTransform(dojox.gfx.matrix.rotategAt(15, mover.lastX - container_pos.x, mover.lastY - container_pos.y));
break;
case "d".charCodeAt(0): case "D".charCodeAt(0):
mover.shape.parent.remove(mover.shape);
mover.shape.rawNode = null;
mover.destroy();
break;
}
dojo.stopEvent(e);
};
dojo.addOnLoad(init);
</script>
</head>
<body>
<h1>Inspect DojoX GFX JSON</h1>
<p>Help: load a file, select an object, and add it, move it around, or apply operations to selected items:<br />
F — bring to front, B — bring to back, Q — rotate CCW, W — rotate CW, D — delete.<br />
(all operations work on currently dragged item).</p>
<p><strong>VML note:</strong> VML doesn't process PNG images with opacity correctly.</p>
<table><tr>
<td align="left" valign="top" class="cell"><div id="gfx" style="width: 500px; height: 500px; border: solid 1px black;"></div></td>
<td align="left" valign="top" class="cell"><table>
<tr><td>Source:</td></tr>
<tr><td><input type="text" id="source" value="data/Lars.json" size="30" /> <button id="load">Load</button><br />
<input type="checkbox" id="named" checked="checked" /> <label for="named">Load only named objects</label></td></tr>
<tr><td class="note"><em>Available sources:</em></td></tr>
<tr><td class="note"><em>data/Lars.json — vectors from SVG</em></td></tr>
<tr><td class="note"><em>data/Nils.json — vectors from SVG</em></td></tr>
<tr><td class="note"><em>data/LarsDreaming.json — vectors from SVG</em></td></tr>
<tr><td class="note"><em>data/buratino.json — images</em></td></tr>
<tr><td class="note"><em>data/transform.json — from dojox.gfx</em></td></tr>
<tr><td> </td></tr>
<tr><td>Objects<span id="names_info"></span>:</td></tr>
<tr><td><select id="names" multiple="multiple" size="10" style="width: 300px;"></select></td></tr>
<tr><td><button id="add">Add Selected</button></td></tr>
<tr><td class="note"><div style="width: 300px;">Object names are hierarchical and separated by "/". Adding a selected object creates a group for this object.
A higher-level object (a group) always includes lower-level objects as children.</div></td></tr>
</table></td>
</tr></table>
</body>
</html>