konva
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<p align="center"> <img src="https://raw.githubusercontent.com/konvajs/konvajs.github.io/master/apple-touch-icon-180x180.png" alt="Konva logo" height="180" /> </p>
52 lines (51 loc) • 1.48 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var Factory_1 = require("../Factory");
var Node_1 = require("../Node");
var Validators_1 = require("../Validators");
exports.RGBA = function (imageData) {
var data = imageData.data, nPixels = data.length, red = this.red(), green = this.green(), blue = this.blue(), alpha = this.alpha(), i, ia;
for (i = 0; i < nPixels; i += 4) {
ia = 1 - alpha;
data[i] = red * alpha + data[i] * ia;
data[i + 1] = green * alpha + data[i + 1] * ia;
data[i + 2] = blue * alpha + data[i + 2] * ia;
}
};
Factory_1.Factory.addGetterSetter(Node_1.Node, 'red', 0, function (val) {
this._filterUpToDate = false;
if (val > 255) {
return 255;
}
else if (val < 0) {
return 0;
}
else {
return Math.round(val);
}
});
Factory_1.Factory.addGetterSetter(Node_1.Node, 'green', 0, function (val) {
this._filterUpToDate = false;
if (val > 255) {
return 255;
}
else if (val < 0) {
return 0;
}
else {
return Math.round(val);
}
});
Factory_1.Factory.addGetterSetter(Node_1.Node, 'blue', 0, Validators_1.RGBComponent, Factory_1.Factory.afterSetFilter);
Factory_1.Factory.addGetterSetter(Node_1.Node, 'alpha', 1, function (val) {
this._filterUpToDate = false;
if (val > 1) {
return 1;
}
else if (val < 0) {
return 0;
}
else {
return val;
}
});