New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f

1 files changed, 361 insertions, 0 deletions

diff --git a/includes/js/dojox/gfx/path.js b/includes/js/dojox/gfx/path.js
new file mode 100644
index 0000000..657136b
--- /dev/null
+++ b/includes/js/dojox/gfx/path.js
@@ -0,0 +1,361 @@
+if(!dojo._hasResource["dojox.gfx.path"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojox.gfx.path"] = true;
+dojo.provide("dojox.gfx.path");
+
+dojo.require("dojox.gfx.shape");
+
+dojo.declare("dojox.gfx.path.Path", dojox.gfx.Shape, {
+	// summary: a generalized path shape
+	
+	constructor: function(rawNode){
+		// summary: a path constructor
+		// rawNode: Node: a DOM node to be used by this path object
+		this.shape = dojo.clone(dojox.gfx.defaultPath);
+		this.segments = [];
+		this.absolute = true;
+		this.last = {};
+		this.rawNode = rawNode;
+	},
+	
+	// mode manipulations
+	setAbsoluteMode: function(mode){
+		// summary: sets an absolute or relative mode for path points
+		// mode: Boolean: true/false or "absolute"/"relative" to specify the mode
+		this.absolute = typeof mode == "string" ? (mode == "absolute") : mode;
+		return this; // self
+	},
+	getAbsoluteMode: function(){
+		// summary: returns a current value of the absolute mode
+		return this.absolute; // Boolean
+	},
+	
+	getBoundingBox: function(){
+		// summary: returns the bounding box {x, y, width, height} or null
+		return (this.bbox && ("l" in this.bbox)) ? {x: this.bbox.l, y: this.bbox.t, width: this.bbox.r - this.bbox.l, height: this.bbox.b - this.bbox.t} : null; // dojox.gfx.Rectangle
+	},
+	
+	getLastPosition: function(){
+		// summary: returns the last point in the path, or null
+		return "x" in this.last ? this.last : null; // Object
+	},
+	
+	// segment interpretation
+	_updateBBox: function(x, y){
+		// summary: updates the bounding box of path with new point
+		// x: Number: an x coordinate
+		// y: Number: a y coordinate
+		
+		// we use {l, b, r, t} representation of a bbox
+		if(this.bbox && ("l" in this.bbox)){
+			if(this.bbox.l > x) this.bbox.l = x;
+			if(this.bbox.r < x) this.bbox.r = x;
+			if(this.bbox.t > y) this.bbox.t = y;
+			if(this.bbox.b < y) this.bbox.b = y;
+		}else{
+			this.bbox = {l: x, b: y, r: x, t: y};
+		}
+	},
+	_updateWithSegment: function(segment){
+		// summary: updates the bounding box of path with new segment
+		// segment: Object: a segment
+		var n = segment.args, l = n.length;
+		// update internal variables: bbox, absolute, last
+		switch(segment.action){
+			case "M":
+			case "L":
+			case "C":
+			case "S":
+			case "Q":
+			case "T":
+				for(var i = 0; i < l; i += 2){
+					this._updateBBox(n[i], n[i + 1]);
+				}
+				this.last.x = n[l - 2];
+				this.last.y = n[l - 1];
+				this.absolute = true;
+				break;
+			case "H":
+				for(var i = 0; i < l; ++i){
+					this._updateBBox(n[i], this.last.y);
+				}
+				this.last.x = n[l - 1];
+				this.absolute = true;
+				break;
+			case "V":
+				for(var i = 0; i < l; ++i){
+					this._updateBBox(this.last.x, n[i]);
+				}
+				this.last.y = n[l - 1];
+				this.absolute = true;
+				break;
+			case "m":
+				var start = 0;
+				if(!("x" in this.last)){
+					this._updateBBox(this.last.x = n[0], this.last.y = n[1]);
+					start = 2;
+				}
+				for(var i = start; i < l; i += 2){
+					this._updateBBox(this.last.x += n[i], this.last.y += n[i + 1]);
+				}
+				this.absolute = false;
+				break;
+			case "l":
+			case "t":
+				for(var i = 0; i < l; i += 2){
+					this._updateBBox(this.last.x += n[i], this.last.y += n[i + 1]);
+				}
+				this.absolute = false;
+				break;
+			case "h":
+				for(var i = 0; i < l; ++i){
+					this._updateBBox(this.last.x += n[i], this.last.y);
+				}
+				this.absolute = false;
+				break;
+			case "v":
+				for(var i = 0; i < l; ++i){
+					this._updateBBox(this.last.x, this.last.y += n[i]);
+				}
+				this.absolute = false;
+				break;
+			case "c":
+				for(var i = 0; i < l; i += 6){
+					this._updateBBox(this.last.x + n[i], this.last.y + n[i + 1]);
+					this._updateBBox(this.last.x + n[i + 2], this.last.y + n[i + 3]);
+					this._updateBBox(this.last.x += n[i + 4], this.last.y += n[i + 5]);
+				}
+				this.absolute = false;
+				break;
+			case "s":
+			case "q":
+				for(var i = 0; i < l; i += 4){
+					this._updateBBox(this.last.x + n[i], this.last.y + n[i + 1]);
+					this._updateBBox(this.last.x += n[i + 2], this.last.y += n[i + 3]);
+				}
+				this.absolute = false;
+				break;
+			case "A":
+				for(var i = 0; i < l; i += 7){
+					this._updateBBox(n[i + 5], n[i + 6]);
+				}
+				this.last.x = n[l - 2];
+				this.last.y = n[l - 1];
+				this.absolute = true;
+				break;
+			case "a":
+				for(var i = 0; i < l; i += 7){
+					this._updateBBox(this.last.x += n[i + 5], this.last.y += n[i + 6]);
+				}
+				this.absolute = false;
+				break;
+		}
+		// add an SVG path segment
+		var path = [segment.action];
+		for(var i = 0; i < l; ++i){
+			path.push(dojox.gfx.formatNumber(n[i], true));
+		}
+		if(typeof this.shape.path == "string"){
+			this.shape.path += path.join("");
+		}else{
+			var l = path.length, a = this.shape.path;
+			for(var i = 0; i < l; ++i){
+				a.push(path[i]);
+			}
+		}
+	},
+	
+	// a dictionary, which maps segment type codes to a number of their argemnts
+	_validSegments: {m: 2, l: 2, h: 1, v: 1, c: 6, s: 4, q: 4, t: 2, a: 7, z: 0},
+	
+	_pushSegment: function(action, args){
+		// summary: adds a segment
+		// action: String: valid SVG code for a segment's type
+		// args: Array: a list of parameters for this segment
+		var group = this._validSegments[action.toLowerCase()];
+		if(typeof group == "number"){
+			if(group){
+				if(args.length >= group){
+					var segment = {action: action, args: args.slice(0, args.length - args.length % group)};
+					this.segments.push(segment);
+					this._updateWithSegment(segment);
+				}
+			}else{
+				var segment = {action: action, args: []};
+				this.segments.push(segment);
+				this._updateWithSegment(segment);
+			}
+		}
+	},
+	
+	_collectArgs: function(array, args){
+		// summary: converts an array of arguments to plain numeric values
+		// array: Array: an output argument (array of numbers)
+		// args: Array: an input argument (can be values of Boolean, Number, dojox.gfx.Point, or an embedded array of them)
+		for(var i = 0; i < args.length; ++i){
+			var t = args[i];
+			if(typeof t == "boolean"){
+				array.push(t ? 1 : 0);
+			}else if(typeof t == "number"){
+				array.push(t);
+			}else if(t instanceof Array){
+				this._collectArgs(array, t);
+			}else if("x" in t && "y" in t){
+				array.push(t.x, t.y);
+			}
+		}
+	},
+
+	// segments	
+	moveTo: function(){
+		// summary: formes a move segment
+		var args = [];
+		this._collectArgs(args, arguments);
+		this._pushSegment(this.absolute ? "M" : "m", args);
+		return this; // self
+	},
+	lineTo: function(){
+		// summary: formes a line segment
+		var args = [];
+		this._collectArgs(args, arguments);
+		this._pushSegment(this.absolute ? "L" : "l", args);
+		return this; // self
+	},
+	hLineTo: function(){
+		// summary: formes a horizontal line segment
+		var args = [];
+		this._collectArgs(args, arguments);
+		this._pushSegment(this.absolute ? "H" : "h", args);
+		return this; // self
+	},
+	vLineTo: function(){
+		// summary: formes a vertical line segment
+		var args = [];
+		this._collectArgs(args, arguments);
+		this._pushSegment(this.absolute ? "V" : "v", args);
+		return this; // self
+	},
+	curveTo: function(){
+		// summary: formes a curve segment
+		var args = [];
+		this._collectArgs(args, arguments);
+		this._pushSegment(this.absolute ? "C" : "c", args);
+		return this; // self
+	},
+	smoothCurveTo: function(){
+		// summary: formes a smooth curve segment
+		var args = [];
+		this._collectArgs(args, arguments);
+		this._pushSegment(this.absolute ? "S" : "s", args);
+		return this; // self
+	},
+	qCurveTo: function(){
+		// summary: formes a quadratic curve segment
+		var args = [];
+		this._collectArgs(args, arguments);
+		this._pushSegment(this.absolute ? "Q" : "q", args);
+		return this; // self
+	},
+	qSmoothCurveTo: function(){
+		// summary: formes a quadratic smooth curve segment
+		var args = [];
+		this._collectArgs(args, arguments);
+		this._pushSegment(this.absolute ? "T" : "t", args);
+		return this; // self
+	},
+	arcTo: function(){
+		// summary: formes an elliptic arc segment
+		var args = [];
+		this._collectArgs(args, arguments);
+		this._pushSegment(this.absolute ? "A" : "a", args);
+		return this; // self
+	},
+	closePath: function(){
+		// summary: closes a path
+		this._pushSegment("Z", []);
+		return this; // self
+	},
+	
+	// setShape
+	_setPath: function(path){
+		// summary: forms a path using an SVG path string
+		// path: String: an SVG path string
+		var p = dojo.isArray(path) ? path : path.match(dojox.gfx.pathSvgRegExp);
+		this.segments = [];
+		this.absolute = true;
+		this.bbox = {};
+		this.last = {};
+		if(!p) return;
+		// create segments
+		var action = "",	// current action
+			args = [],		// current arguments
+			l = p.length;
+		for(var i = 0; i < l; ++i){
+			var t = p[i], x = parseFloat(t);
+			if(isNaN(x)){
+				if(action){
+					this._pushSegment(action, args);
+				}
+				args = [];
+				action = t;
+			}else{
+				args.push(x);
+			}
+		}
+		this._pushSegment(action, args);
+	},
+	setShape: function(newShape){
+		// summary: forms a path using a shape
+		// newShape: Object: an SVG path string or a path object (see dojox.gfx.defaultPath)
+		dojox.gfx.Shape.prototype.setShape.call(this, typeof newShape == "string" ? {path: newShape} : newShape);
+		var path = this.shape.path;
+		// switch to non-updating version of path building
+		this.shape.path = [];
+		this._setPath(path);
+		// switch back to the string path
+		this.shape.path = this.shape.path.join("");
+		return this; // self
+	},
+	
+	// useful constant for descendants
+	_2PI: Math.PI * 2
+});
+
+dojo.declare("dojox.gfx.path.TextPath", dojox.gfx.path.Path, {
+	// summary: a generalized TextPath shape
+
+	constructor: function(rawNode){
+		// summary: a TextPath shape constructor
+		// rawNode: Node: a DOM node to be used by this TextPath object
+		if(!("text" in this)){
+			this.text = dojo.clone(dojox.gfx.defaultTextPath);
+		}
+		if(!("fontStyle" in this)){
+			this.fontStyle = dojo.clone(dojox.gfx.defaultFont);
+		}
+	},
+	getText: function(){
+		// summary: returns the current text object or null
+		return this.text;	// Object
+	},
+	setText: function(newText){
+		// summary: sets a text to be drawn along the path
+		this.text = dojox.gfx.makeParameters(this.text, 
+			typeof newText == "string" ? {text: newText} : newText);
+		this._setText();
+		return this;	// self
+	},
+	getFont: function(){
+		// summary: returns the current font object or null
+		return this.fontStyle;	// Object
+	},
+	setFont: function(newFont){
+		// summary: sets a font for text
+		this.fontStyle = typeof newFont == "string" ? 
+			dojox.gfx.splitFontString(newFont) :
+			dojox.gfx.makeParameters(dojox.gfx.defaultFont, newFont);
+		this._setFont();
+		return this;	// self
+	}
+});
+
+}