/*
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* ext-helloworld.js
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*
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* Licensed under the Apache License, Version 2
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*
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* Copyright(c) 2010 Alexis Deveria
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*
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*/
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/*
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This is a very basic SVG-Edit extension. It adds a "Hello World" button in
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the left panel. Clicking on the button, and then the canvas will show the
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user the point on the canvas that was clicked on.
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*/
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methodDraw.addExtension("Hello World", function() {
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return {
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name: "Hello World",
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// For more notes on how to make an icon file, see the source of
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// the hellorworld-icon.xml
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svgicons: "extensions/helloworld-icon.xml",
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// Multiple buttons can be added in this array
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buttons: [{
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// Must match the icon ID in helloworld-icon.xml
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id: "hello_world",
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// This indicates that the button will be added to the "mode"
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// button panel on the left side
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type: "mode",
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// Tooltip text
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title: "Say 'Hello World'",
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// Events
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events: {
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'click': function() {
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// The action taken when the button is clicked on.
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// For "mode" buttons, any other button will
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// automatically be de-pressed.
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svgCanvas.setMode("hello_world");
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}
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}
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}],
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// This is triggered when the main mouse button is pressed down
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// on the editor canvas (not the tool panels)
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mouseDown: function() {
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// Check the mode on mousedown
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if(svgCanvas.getMode() == "hello_world") {
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// The returned object must include "started" with
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// a value of true in order for mouseUp to be triggered
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return {started: true};
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}
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},
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// This is triggered from anywhere, but "started" must have been set
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// to true (see above). Note that "opts" is an object with event info
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mouseUp: function(opts) {
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// Check the mode on mouseup
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if(svgCanvas.getMode() == "hello_world") {
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var zoom = svgCanvas.getZoom();
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// Get the actual coordinate by dividing by the zoom value
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var x = opts.mouse_x / zoom;
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var y = opts.mouse_y / zoom;
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var text = "Hello World!\n\nYou clicked here: "
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+ x + ", " + y;
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// Show the text using the custom alert function
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$.alert(text);
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}
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}
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};
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});
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