Move Utils mostly over to a separate JS file
git-svn-id: http://svg-edit.googlecode.com/svn/trunk@1817 eee81c28-f429-11dd-99c0-75d572ba1dddmaster
Jeff Schiller
parent
8ba573662e
commit
89d5451cef
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@ -18,6 +18,7 @@
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<script type="text/javascript" src="jquerybbq/jquery.bbq.min.js"></script>
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<script type="text/javascript" src="spinbtn/JQuerySpinBtn.js"></script>
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<script type="text/javascript" src="contextmenu/jquery.contextMenu.js"></script>
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<script type="text/javascript" src="svgutils.js"></script>
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<script type="text/javascript" src="svgcanvas.js"></script>
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<script type="text/javascript" src="svg-editor.js"></script>
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<script type="text/javascript" src="locale/locale.js"></script>
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@ -199,250 +199,21 @@ if(config) {
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}
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// Static class for various utility functions
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var Utils = this.Utils = function() {
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// See svgutils.js.
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var Utils = this.Utils = SVGEditUtilities;
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var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
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return {
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// Function: Utils.toXml
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// Converts characters in a string to XML-friendly entities.
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//
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// Example: "&" becomes "&"
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//
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// Parameters:
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// str - The string to be converted
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//
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// Returns:
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// The converted string
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"toXml": function(str) {
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return $('<p/>').text(str).html();
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},
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// Function: Utils.fromXml
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// Converts XML entities in a string to single characters.
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// Example: "&" becomes "&"
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//
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// Parameters:
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// str - The string to be converted
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//
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// Returns:
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// The converted string
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"fromXml": function(str) {
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return $('<p/>').html(str).text();
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},
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// This code was written by Tyler Akins and has been placed in the
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// public domain. It would be nice if you left this header intact.
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// Base64 code from Tyler Akins -- http://rumkin.com
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// schiller: Removed string concatenation in favour of Array.join() optimization,
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// also precalculate the size of the array needed.
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// Function: Utils.encode64
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// Converts a string to base64
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"encode64" : function(input) {
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// base64 strings are 4/3 larger than the original string
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// input = Utils.encodeUTF8(input); // convert non-ASCII characters
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input = Utils.convertToXMLReferences(input);
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if(window.btoa) return window.btoa(input); // Use native if available
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var output = new Array( Math.floor( (input.length + 2) / 3 ) * 4 );
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var chr1, chr2, chr3;
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var enc1, enc2, enc3, enc4;
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var i = 0, p = 0;
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do {
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chr1 = input.charCodeAt(i++);
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chr2 = input.charCodeAt(i++);
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chr3 = input.charCodeAt(i++);
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enc1 = chr1 >> 2;
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enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
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enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
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enc4 = chr3 & 63;
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if (isNaN(chr2)) {
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enc3 = enc4 = 64;
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} else if (isNaN(chr3)) {
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enc4 = 64;
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}
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output[p++] = _keyStr.charAt(enc1);
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output[p++] = _keyStr.charAt(enc2);
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output[p++] = _keyStr.charAt(enc3);
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output[p++] = _keyStr.charAt(enc4);
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} while (i < input.length);
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return output.join('');
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},
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// Function: Utils.decode64
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// Converts a string from base64
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"decode64" : function(input) {
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if(window.atob) return window.atob(input);
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var output = "";
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var chr1, chr2, chr3 = "";
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var enc1, enc2, enc3, enc4 = "";
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var i = 0;
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// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
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input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
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do {
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enc1 = _keyStr.indexOf(input.charAt(i++));
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enc2 = _keyStr.indexOf(input.charAt(i++));
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enc3 = _keyStr.indexOf(input.charAt(i++));
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enc4 = _keyStr.indexOf(input.charAt(i++));
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chr1 = (enc1 << 2) | (enc2 >> 4);
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chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
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chr3 = ((enc3 & 3) << 6) | enc4;
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output = output + String.fromCharCode(chr1);
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if (enc3 != 64) {
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output = output + String.fromCharCode(chr2);
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}
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if (enc4 != 64) {
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output = output + String.fromCharCode(chr3);
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}
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chr1 = chr2 = chr3 = "";
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enc1 = enc2 = enc3 = enc4 = "";
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} while (i < input.length);
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return unescape(output);
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},
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// Currently not being used, so commented out for now
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// based on http://phpjs.org/functions/utf8_encode:577
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// codedread:does not seem to work with webkit-based browsers on OSX
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// "encodeUTF8": function(input) {
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// //return unescape(encodeURIComponent(input)); //may or may not work
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// var output = '';
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// for (var n = 0; n < input.length; n++){
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// var c = input.charCodeAt(n);
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// if (c < 128) {
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// output += input[n];
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// }
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// else if (c > 127) {
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// if (c < 2048){
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// output += String.fromCharCode((c >> 6) | 192);
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// }
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// else {
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// output += String.fromCharCode((c >> 12) | 224) + String.fromCharCode((c >> 6) & 63 | 128);
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// }
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// output += String.fromCharCode((c & 63) | 128);
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// }
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// }
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// return output;
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// },
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// Function: Utils.convertToXMLReferences
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// Converts a string to use XML references
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"convertToXMLReferences": function(input) {
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var output = '';
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for (var n = 0; n < input.length; n++){
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var c = input.charCodeAt(n);
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if (c < 128) {
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output += input[n];
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}
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else if(c > 127) {
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output += ("&#" + c + ";");
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}
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}
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return output;
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},
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// Function: rectsIntersect
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// Check if two rectangles (BBoxes objects) intersect each other
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//
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// Paramaters:
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// r1 - The first BBox-like object
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// r2 - The second BBox-like object
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//
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// Returns:
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// Boolean that's true if rectangles intersect
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"rectsIntersect": function(r1, r2) {
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return r2.x < (r1.x+r1.width) &&
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(r2.x+r2.width) > r1.x &&
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r2.y < (r1.y+r1.height) &&
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(r2.y+r2.height) > r1.y;
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},
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// Function: snapToAngle
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// Returns a 45 degree angle coordinate associated with the two given
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// coordinates
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//
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// Parameters:
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// x1 - First coordinate's x value
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// x2 - Second coordinate's x value
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// y1 - First coordinate's y value
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// y2 - Second coordinate's y value
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//
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// Returns:
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// Object with the following values:
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// x - The angle-snapped x value
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// y - The angle-snapped y value
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// snapangle - The angle at which to snap
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"snapToAngle": function(x1,y1,x2,y2) {
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var snap = Math.PI/4; // 45 degrees
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var dx = x2 - x1;
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var dy = y2 - y1;
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var angle = Math.atan2(dy,dx);
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var dist = Math.sqrt(dx * dx + dy * dy);
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var snapangle= Math.round(angle/snap)*snap;
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var x = x1 + dist*Math.cos(snapangle);
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var y = y1 + dist*Math.sin(snapangle);
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//console.log(x1,y1,x2,y2,x,y,angle)
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return {x:x, y:y, a:snapangle};
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},
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// Function: snapToGrid
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// round value to for snapping
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"snapToGrid" : function(value){
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var stepSize = curConfig.snappingStep;
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var unit = curConfig.baseUnit;
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if(unit !== "px") {
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stepSize *= unit_types[unit];
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}
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value = Math.round(value/stepSize)*stepSize;
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return value;
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},
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// Function: text2xml
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// Cross-browser compatible method of converting a string to an XML tree
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// found this function here: http://groups.google.com/group/jquery-dev/browse_thread/thread/c6d11387c580a77f
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"text2xml": function(sXML) {
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if(sXML.indexOf('<svg:svg') >= 0) {
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sXML = sXML.replace(/<(\/?)svg:/g, '<$1').replace('xmlns:svg', 'xmlns');
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}
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var out;
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try{
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var dXML = (window.DOMParser)?new DOMParser():new ActiveXObject("Microsoft.XMLDOM");
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dXML.async = false;
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} catch(e){
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throw new Error("XML Parser could not be instantiated");
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};
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try{
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if(dXML.loadXML) out = (dXML.loadXML(sXML))?dXML:false;
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else out = dXML.parseFromString(sXML, "text/xml");
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}
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catch(e){ throw new Error("Error parsing XML string"); };
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return out;
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},
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bboxToObj: function(bbox) {
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return {
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x: bbox.x,
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y: bbox.y,
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width: bbox.width,
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height: bbox.height
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}
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}
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// Function: snapToGrid
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// round value to for snapping
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// NOTE: This function did not move to svgutils.js since it depends on unit_types.
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Utils.snapToGrid = function(value){
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var stepSize = curConfig.snappingStep;
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var unit = curConfig.baseUnit;
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if(unit !== "px") {
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stepSize *= unit_types[unit];
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}
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}();
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value = Math.round(value/stepSize)*stepSize;
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return value;
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};
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var snapToGrid = Utils.snapToGrid;
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var elData = $.data;
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@ -0,0 +1,251 @@
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/**
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* SVG-edit Utilities
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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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* Copyright(c) 2010 Jeff Schiller
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*/
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// NOTE: Requires jQuery to be loaded.
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SVGEditUtilities = {
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};
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// String used to encode base64.
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SVGEditUtilities._keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
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// Function: SVGEditUtilities.toXml
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// Converts characters in a string to XML-friendly entities.
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//
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// Example: "&" becomes "&"
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//
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// Parameters:
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// str - The string to be converted
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//
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// Returns:
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// The converted string
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SVGEditUtilities.toXml = function(str) {
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return $('<p/>').text(str).html();
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};
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// Function: SVGEditUtilities.fromXml
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// Converts XML entities in a string to single characters.
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// Example: "&" becomes "&"
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//
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// Parameters:
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// str - The string to be converted
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//
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// Returns:
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// The converted string
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SVGEditUtilities.fromXml = function(str) {
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return $('<p/>').html(str).text();
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};
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// This code was written by Tyler Akins and has been placed in the
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// public domain. It would be nice if you left this header intact.
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// Base64 code from Tyler Akins -- http://rumkin.com
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// schiller: Removed string concatenation in favour of Array.join() optimization,
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// also precalculate the size of the array needed.
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// Function: Utils.encode64
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// Converts a string to base64
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SVGEditUtilities.encode64 = function(input) {
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// base64 strings are 4/3 larger than the original string
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// input = Utils.encodeUTF8(input); // convert non-ASCII characters
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input = Utils.convertToXMLReferences(input);
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if(window.btoa) return window.btoa(input); // Use native if available
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var _keyStr = SVGEditUtilities._keyStr;
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var output = new Array( Math.floor( (input.length + 2) / 3 ) * 4 );
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var chr1, chr2, chr3;
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var enc1, enc2, enc3, enc4;
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var i = 0, p = 0;
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do {
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chr1 = input.charCodeAt(i++);
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chr2 = input.charCodeAt(i++);
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chr3 = input.charCodeAt(i++);
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enc1 = chr1 >> 2;
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enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
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enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
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enc4 = chr3 & 63;
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if (isNaN(chr2)) {
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enc3 = enc4 = 64;
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} else if (isNaN(chr3)) {
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enc4 = 64;
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}
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output[p++] = _keyStr.charAt(enc1);
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output[p++] = _keyStr.charAt(enc2);
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output[p++] = _keyStr.charAt(enc3);
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output[p++] = _keyStr.charAt(enc4);
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} while (i < input.length);
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return output.join('');
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};
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// Function: Utils.decode64
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// Converts a string from base64
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SVGEditUtilities.decode64 = function(input) {
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if(window.atob) return window.atob(input);
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var output = "";
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var chr1, chr2, chr3 = "";
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var enc1, enc2, enc3, enc4 = "";
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var i = 0;
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// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
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input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
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do {
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enc1 = _keyStr.indexOf(input.charAt(i++));
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enc2 = _keyStr.indexOf(input.charAt(i++));
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enc3 = _keyStr.indexOf(input.charAt(i++));
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enc4 = _keyStr.indexOf(input.charAt(i++));
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chr1 = (enc1 << 2) | (enc2 >> 4);
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chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
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chr3 = ((enc3 & 3) << 6) | enc4;
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output = output + String.fromCharCode(chr1);
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if (enc3 != 64) {
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output = output + String.fromCharCode(chr2);
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}
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if (enc4 != 64) {
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output = output + String.fromCharCode(chr3);
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}
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chr1 = chr2 = chr3 = "";
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enc1 = enc2 = enc3 = enc4 = "";
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} while (i < input.length);
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return unescape(output);
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};
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// Currently not being used, so commented out for now
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// based on http://phpjs.org/functions/utf8_encode:577
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// codedread:does not seem to work with webkit-based browsers on OSX
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// "encodeUTF8": function(input) {
|
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// //return unescape(encodeURIComponent(input)); //may or may not work
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// var output = '';
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// for (var n = 0; n < input.length; n++){
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// var c = input.charCodeAt(n);
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// if (c < 128) {
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// output += input[n];
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// }
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// else if (c > 127) {
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// if (c < 2048){
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// output += String.fromCharCode((c >> 6) | 192);
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// }
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// else {
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// output += String.fromCharCode((c >> 12) | 224) + String.fromCharCode((c >> 6) & 63 | 128);
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// }
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// output += String.fromCharCode((c & 63) | 128);
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// }
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// }
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// return output;
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// },
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// Function: Utils.convertToXMLReferences
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// Converts a string to use XML references
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SVGEditUtilities.convertToXMLReferences = function(input) {
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var output = '';
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for (var n = 0; n < input.length; n++){
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var c = input.charCodeAt(n);
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if (c < 128) {
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output += input[n];
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}
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else if(c > 127) {
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output += ("&#" + c + ";");
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}
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}
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return output;
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};
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// Function: rectsIntersect
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// Check if two rectangles (BBoxes objects) intersect each other
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//
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// Paramaters:
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// r1 - The first BBox-like object
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// r2 - The second BBox-like object
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//
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// Returns:
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// Boolean that's true if rectangles intersect
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SVGEditUtilities.rectsIntersect = function(r1, r2) {
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return r2.x < (r1.x+r1.width) &&
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(r2.x+r2.width) > r1.x &&
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r2.y < (r1.y+r1.height) &&
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(r2.y+r2.height) > r1.y;
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};
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// Function: snapToAngle
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// Returns a 45 degree angle coordinate associated with the two given
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// coordinates
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//
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// Parameters:
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// x1 - First coordinate's x value
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// x2 - Second coordinate's x value
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// y1 - First coordinate's y value
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// y2 - Second coordinate's y value
|
||||
//
|
||||
// Returns:
|
||||
// Object with the following values:
|
||||
// x - The angle-snapped x value
|
||||
// y - The angle-snapped y value
|
||||
// snapangle - The angle at which to snap
|
||||
SVGEditUtilities.snapToAngle = function(x1,y1,x2,y2) {
|
||||
var snap = Math.PI/4; // 45 degrees
|
||||
var dx = x2 - x1;
|
||||
var dy = y2 - y1;
|
||||
var angle = Math.atan2(dy,dx);
|
||||
var dist = Math.sqrt(dx * dx + dy * dy);
|
||||
var snapangle= Math.round(angle/snap)*snap;
|
||||
var x = x1 + dist*Math.cos(snapangle);
|
||||
var y = y1 + dist*Math.sin(snapangle);
|
||||
//console.log(x1,y1,x2,y2,x,y,angle)
|
||||
return {x:x, y:y, a:snapangle};
|
||||
},
|
||||
|
||||
// Function: text2xml
|
||||
// Cross-browser compatible method of converting a string to an XML tree
|
||||
// found this function here: http://groups.google.com/group/jquery-dev/browse_thread/thread/c6d11387c580a77f
|
||||
SVGEditUtilities.text2xml = function(sXML) {
|
||||
if(sXML.indexOf('<svg:svg') >= 0) {
|
||||
sXML = sXML.replace(/<(\/?)svg:/g, '<$1').replace('xmlns:svg', 'xmlns');
|
||||
}
|
||||
|
||||
var out;
|
||||
try{
|
||||
var dXML = (window.DOMParser)?new DOMParser():new ActiveXObject("Microsoft.XMLDOM");
|
||||
dXML.async = false;
|
||||
} catch(e){
|
||||
throw new Error("XML Parser could not be instantiated");
|
||||
};
|
||||
try{
|
||||
if(dXML.loadXML) out = (dXML.loadXML(sXML))?dXML:false;
|
||||
else out = dXML.parseFromString(sXML, "text/xml");
|
||||
}
|
||||
catch(e){ throw new Error("Error parsing XML string"); };
|
||||
return out;
|
||||
};
|
||||
|
||||
// Function: bboxToObj
|
||||
// Converts a SVGRect into an object.
|
||||
//
|
||||
// Parameters:
|
||||
// bbox - a SVGRect
|
||||
//
|
||||
// Returns:
|
||||
// An object with properties names x, y, width, height.
|
||||
SVGEditUtilities.bboxToObj = function(bbox) {
|
||||
return {
|
||||
x: bbox.x,
|
||||
y: bbox.y,
|
||||
width: bbox.width,
|
||||
height: bbox.height
|
||||
}
|
||||
};
|
||||
Loading…
Reference in New Issue