+++ /dev/null
-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
- }
-});
-
-}
projects / eow / blobdiff