"use strict";
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function colorGradient(startColor = "rgb(0, 0, 0)", endColor = "rgb(255, 255, 255)", step = 10) {
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const startRGB = hexToRgb(startColor, false);
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const startR = startRGB[0];
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const startG = startRGB[1];
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const startB = startRGB[2];
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const endRGB = hexToRgb(endColor, false);
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const endR = endRGB[0];
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const endG = endRGB[1];
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const endB = endRGB[2];
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const sR = (endR - startR) / step;
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const sG = (endG - startG) / step;
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const sB = (endB - startB) / step;
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const colorArr = [];
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for (let i = 0; i < step; i++) {
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let hex = rgbToHex(`rgb(${Math.round(sR * i + startR)},${Math.round(sG * i + startG)},${Math.round(sB * i + startB)})`);
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if (i === 0)
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hex = rgbToHex(startColor);
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if (i === step - 1)
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hex = rgbToHex(endColor);
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colorArr.push(hex);
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}
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return colorArr;
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}
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function hexToRgb(sColor, str = true) {
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const reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/;
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sColor = String(sColor).toLowerCase();
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if (sColor && reg.test(sColor)) {
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if (sColor.length === 4) {
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let sColorNew = "#";
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for (let i = 1; i < 4; i += 1) {
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sColorNew += sColor.slice(i, i + 1).concat(sColor.slice(i, i + 1));
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}
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sColor = sColorNew;
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}
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const sColorChange = [];
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for (let i = 1; i < 7; i += 2) {
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sColorChange.push(parseInt(`0x${sColor.slice(i, i + 2)}`));
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}
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if (!str) {
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return sColorChange;
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}
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return `rgb(${sColorChange[0]},${sColorChange[1]},${sColorChange[2]})`;
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}
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if (/^(rgb|RGB)/.test(sColor)) {
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const arr = sColor.replace(/(?:\(|\)|rgb|RGB)*/g, "").split(",");
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return arr.map((val) => Number(val));
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}
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return sColor;
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}
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function rgbToHex(rgb) {
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const _this = rgb;
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const reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/;
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if (/^(rgb|RGB)/.test(_this)) {
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const aColor = _this.replace(/(?:\(|\)|rgb|RGB)*/g, "").split(",");
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let strHex = "#";
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for (let i = 0; i < aColor.length; i++) {
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let hex = Number(aColor[i]).toString(16);
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hex = String(hex).length == 1 ? `${0}${hex}` : hex;
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if (hex === "0") {
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hex += hex;
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}
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strHex += hex;
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}
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if (strHex.length !== 7) {
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strHex = _this;
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}
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return strHex;
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}
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if (reg.test(_this)) {
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const aNum = _this.replace(/#/, "").split("");
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if (aNum.length === 6) {
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return _this;
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}
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if (aNum.length === 3) {
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let numHex = "#";
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for (let i = 0; i < aNum.length; i += 1) {
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numHex += aNum[i] + aNum[i];
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}
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return numHex;
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}
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} else {
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return _this;
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}
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}
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function colorToRgba(color, alpha) {
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color = rgbToHex(color);
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const reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/;
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let sColor = String(color).toLowerCase();
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if (sColor && reg.test(sColor)) {
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if (sColor.length === 4) {
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let sColorNew = "#";
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for (let i = 1; i < 4; i += 1) {
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sColorNew += sColor.slice(i, i + 1).concat(sColor.slice(i, i + 1));
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}
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sColor = sColorNew;
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}
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const sColorChange = [];
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for (let i = 1; i < 7; i += 2) {
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sColorChange.push(parseInt(`0x${sColor.slice(i, i + 2)}`));
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}
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return `rgba(${sColorChange.join(",")},${alpha})`;
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}
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return sColor;
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}
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const colorGradient$1 = {
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colorGradient,
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hexToRgb,
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rgbToHex,
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colorToRgba
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};
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exports.colorGradient = colorGradient$1;
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exports.colorGradient$1 = colorGradient;
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//# sourceMappingURL=../../../../../.sourcemap/mp-weixin/uni_modules/uview-plus/libs/function/colorGradient.js.map
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