@nativescript-community/ui-chart/renderer/LineRadarRenderer.js

A powerful chart / graph plugin, supporting line, bar, pie, radar, bubble, and candlestick charts as well as scaling, panning and animations.

import { Rect, Style } from '@nativescript-community/ui-canvas';
import { Color } from '@nativescript/core';
import { Utils } from '../utils/Utils';
import { LineScatterCandleRadarRenderer } from './LineScatterCandleRadarRenderer';
/**
 * Created by Philipp Jahoda on 25/01/16.
 */
export class LineRadarRenderer extends LineScatterCandleRadarRenderer {
    constructor(animator, viewPortHandler) {
        super(animator, viewPortHandler);
    }
    /**
     * Draws the provided path in filled mode with the provided drawable.
     *
     * @param c
     * @param filledPath
     * @param drawable
     */
    drawFilledPathBitmap(c, filledPath, drawable, shader) {
        if (Utils.clipPathSupported()) {
            const save = c.save();
            // c.scale(1, 1/SCALE_FACTOR, 0, this.mViewPortHandler.contentBottom)
            c.clipPath(filledPath);
            // drawable.setBounds(this.mViewPortHandler.contentLeft, this.mViewPortHandler.contentTop, this.mViewPortHandler.contentRight, this.mViewPortHandler.contentBottom);
            // drawable.draw(c);
            c.drawBitmap(drawable, new Rect(0, 0, drawable.width, drawable.height), new Rect(this.mViewPortHandler.contentLeft, this.mViewPortHandler.contentTop, this.mViewPortHandler.contentRight, this.mViewPortHandler.contentBottom), null);
            c.restoreToCount(save);
        }
        else {
            throw new Error('Fill-drawables not (yet) supported below API level 18 ');
        }
    }
    drawPath(canvas, path, paint) {
        canvas.drawPath(path, paint);
    }
    /**
     * Draws the provided path in filled mode with the provided color and alpha.
     * Special thanks to Angelo Suzuki (https://github.com/tinsukE) for this.
     *
     * @param c
     * @param filledPath
     * @param fillColor
     * @param fillAlpha
     */
    drawFilledPath(c, filledPath, fillColor, fillAlpha = 255, shader) {
        let color = fillColor;
        if (fillAlpha < 255) {
            fillColor = fillColor instanceof Color ? fillColor : new Color(fillColor);
            color = new Color(fillAlpha, fillColor.r, fillColor.g, fillColor.b);
        }
        const renderPaint = this.renderPaint;
        // save
        const previous = renderPaint.getStyle();
        const previousColor = renderPaint.getColor();
        const previousShader = renderPaint.getShader();
        renderPaint.setStyle(Style.FILL);
        renderPaint.setColor(color);
        if (shader) {
            renderPaint.setShader(shader);
        }
        if (Utils.clipPathSupported()) {
            const save = c.save();
            c.clipPath(filledPath);
            c.drawPaint(renderPaint);
            c.restoreToCount(save);
        }
        else {
            this.drawPath(c, filledPath, renderPaint);
        }
        // restore
        renderPaint.setColor(previousColor);
        renderPaint.setShader(previousShader);
        renderPaint.setStyle(previous);
    }
}
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