@quartic/bokehjs
Version:
Interactive, novel data visualization
162 lines (161 loc) • 6.71 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var extend = function (child, parent) { for (var key in parent) {
if (hasProp.call(parent, key))
child[key] = parent[key];
} function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; }, hasProp = {}.hasOwnProperty;
var xy_glyph_1 = require("./xy_glyph");
var p = require("core/properties");
var array_1 = require("core/util/array");
exports.ImageRGBAView = (function (superClass) {
extend(ImageRGBAView, superClass);
function ImageRGBAView() {
return ImageRGBAView.__super__.constructor.apply(this, arguments);
}
ImageRGBAView.prototype._set_data = function (source, arg) {
var buf, buf8, canvas, color, ctx, flat, i, image_data, j, k, l, m, ref, ref1, ref2, results, shape;
if ((this.image_data == null) || this.image_data.length !== this._image.length) {
this.image_data = new Array(this._image.length);
}
if ((this._width == null) || this._width.length !== this._image.length) {
this._width = new Array(this._image.length);
}
if ((this._height == null) || this._height.length !== this._image.length) {
this._height = new Array(this._image.length);
}
results = [];
for (i = k = 0, ref = this._image.length; 0 <= ref ? k < ref : k > ref; i = 0 <= ref ? ++k : --k) {
if (arg != null) {
if (i !== arg) {
continue;
}
}
shape = [];
if (this._image_shape != null) {
shape = this._image_shape[i];
}
if (this._rows != null) {
this._height[i] = this._rows[i];
this._width[i] = this._cols[i];
if (shape.length > 0) {
buf = this._image[i].buffer;
}
else {
flat = this._image[i];
buf = new ArrayBuffer(flat.length * 4);
color = new Uint32Array(buf);
for (j = l = 0, ref1 = flat.length; 0 <= ref1 ? l < ref1 : l > ref1; j = 0 <= ref1 ? ++l : --l) {
color[j] = flat[j];
}
}
}
else if (shape.length > 0) {
buf = this._image[i].buffer;
this._height[i] = shape[0];
this._width[i] = shape[1];
}
else {
flat = array_1.concat(this._image[i]);
buf = new ArrayBuffer(flat.length * 4);
color = new Uint32Array(buf);
for (j = m = 0, ref2 = flat.length; 0 <= ref2 ? m < ref2 : m > ref2; j = 0 <= ref2 ? ++m : --m) {
color[j] = flat[j];
}
this._height[i] = this._image[i].length;
this._width[i] = this._image[i][0].length;
}
if ((this.image_data[i] != null) && this.image_data[i].width === this._width[i] && this.image_data[i].height === this._height[i]) {
canvas = this.image_data[i];
}
else {
canvas = document.createElement('canvas');
canvas.width = this._width[i];
canvas.height = this._height[i];
}
ctx = canvas.getContext('2d');
image_data = ctx.getImageData(0, 0, this._width[i], this._height[i]);
buf8 = new Uint8Array(buf);
image_data.data.set(buf8);
ctx.putImageData(image_data, 0, 0);
this.image_data[i] = canvas;
this.max_dw = 0;
if (this._dw.units === "data") {
this.max_dw = array_1.max(this._dw);
}
this.max_dh = 0;
if (this._dh.units === "data") {
results.push(this.max_dh = array_1.max(this._dh));
}
else {
results.push(void 0);
}
}
return results;
};
ImageRGBAView.prototype._map_data = function () {
switch (this.model.properties.dw.units) {
case "data":
this.sw = this.sdist(this.renderer.xmapper, this._x, this._dw, 'edge', this.model.dilate);
break;
case "screen":
this.sw = this._dw;
}
switch (this.model.properties.dh.units) {
case "data":
return this.sh = this.sdist(this.renderer.ymapper, this._y, this._dh, 'edge', this.model.dilate);
case "screen":
return this.sh = this._dh;
}
};
ImageRGBAView.prototype._render = function (ctx, indices, arg1) {
var i, image_data, k, len, old_smoothing, sh, sw, sx, sy, y_offset;
image_data = arg1.image_data, sx = arg1.sx, sy = arg1.sy, sw = arg1.sw, sh = arg1.sh;
old_smoothing = ctx.getImageSmoothingEnabled();
ctx.setImageSmoothingEnabled(false);
for (k = 0, len = indices.length; k < len; k++) {
i = indices[k];
if (isNaN(sx[i] + sy[i] + sw[i] + sh[i])) {
continue;
}
y_offset = sy[i];
ctx.translate(0, y_offset);
ctx.scale(1, -1);
ctx.translate(0, -y_offset);
ctx.drawImage(image_data[i], sx[i] | 0, sy[i] | 0, sw[i], sh[i]);
ctx.translate(0, y_offset);
ctx.scale(1, -1);
ctx.translate(0, -y_offset);
}
return ctx.setImageSmoothingEnabled(old_smoothing);
};
ImageRGBAView.prototype.bounds = function () {
var bbox;
bbox = this.index.bbox;
bbox.maxX += this.max_dw;
bbox.maxY += this.max_dh;
return bbox;
};
return ImageRGBAView;
})(xy_glyph_1.XYGlyphView);
exports.ImageRGBA = (function (superClass) {
extend(ImageRGBA, superClass);
function ImageRGBA() {
return ImageRGBA.__super__.constructor.apply(this, arguments);
}
ImageRGBA.prototype.default_view = exports.ImageRGBAView;
ImageRGBA.prototype.type = 'ImageRGBA';
ImageRGBA.define({
image: [p.NumberSpec],
rows: [p.NumberSpec],
cols: [p.NumberSpec],
dw: [p.DistanceSpec],
dh: [p.DistanceSpec],
dilate: [p.Bool, false]
});
ImageRGBA.prototype.initialize = function (attrs, options) {
ImageRGBA.__super__.initialize.call(this, attrs, options);
this.properties.rows.optional = true;
return this.properties.cols.optional = true;
};
return ImageRGBA;
})(xy_glyph_1.XYGlyph);