react-native/Libraries/ART/ARTSerializablePath.js

74 lines
1.5 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
*/
'use strict';
// TODO: Move this into an ART mode called "serialized" or something
var Class = require('art/core/class.js');
var Path = require('art/core/path.js');
var MOVE_TO = 0;
var CLOSE = 1;
var LINE_TO = 2;
var CURVE_TO = 3;
var ARC = 4;
var SerializablePath = Class(Path, {
initialize: function(path) {
this.reset();
if (path instanceof SerializablePath) {
this.path = path.path.slice(0);
} else if (path) {
if (path.applyToPath) {
path.applyToPath(this);
} else {
this.push(path);
}
}
},
onReset: function() {
this.path = [];
},
onMove: function(sx, sy, x, y) {
this.path.push(MOVE_TO, x, y);
},
onLine: function(sx, sy, x, y) {
this.path.push(LINE_TO, x, y);
},
onBezierCurve: function(sx, sy, p1x, p1y, p2x, p2y, x, y) {
this.path.push(CURVE_TO, p1x, p1y, p2x, p2y, x, y);
},
_arcToBezier: Path.prototype.onArc,
onArc: function(sx, sy, ex, ey, cx, cy, rx, ry, sa, ea, ccw, rotation) {
if (rx !== ry || rotation) {
return this._arcToBezier(
sx, sy, ex, ey, cx, cy, rx, ry, sa, ea, ccw, rotation
);
}
this.path.push(ARC, cx, cy, rx, sa, ea, ccw ? 0 : 1);
},
onClose: function() {
this.path.push(CLOSE);
},
toJSON: function() {
return this.path;
}
});
module.exports = SerializablePath;