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top left right bottom 增加负数支持

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This commit is contained in:
CPPAlien 2018-07-20 15:57:33 +08:00
parent 53284484f0
commit 7646ff55de
2 changed files with 15 additions and 6 deletions
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8
lib/pen.js
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@ -116,8 +116,8 @@ export default class Painter {
const lineHeight = view.css.lineHeight ? view.css.lineHeight.toPx() : view.css.fontSize.toPx();
height = lineHeight * lines;
x = view.css.right ? this.style.width - view.css.right.toPx() : (view.css.left ? view.css.left.toPx() : 0);
y = view.css.bottom ? this.style.height - height - view.css.bottom.toPx() : (view.css.top ? view.css.top.toPx() : 0);
x = view.css.right ? this.style.width - view.css.right.toPx(true) : (view.css.left ? view.css.left.toPx(true) : 0);
y = view.css.bottom ? this.style.height - height - view.css.bottom.toPx(true) : (view.css.top ? view.css.top.toPx(true) : 0);
extra = { lines: lines, lineHeight: lineHeight };
} else {
if (!(view.css.width && view.css.height)) {
@ -126,8 +126,8 @@ export default class Painter {
}
width = view.css.width.toPx();
height = view.css.height.toPx();
x = view.css.right ? this.style.width - view.css.right.toPx() : (view.css.left ? view.css.left.toPx() : 0);
y = view.css.bottom ? this.style.height - height - view.css.bottom.toPx() : (view.css.top ? view.css.top.toPx() : 0);
x = view.css.right ? this.style.width - view.css.right.toPx(true) : (view.css.left ? view.css.left.toPx(true) : 0);
y = view.css.bottom ? this.style.height - height - view.css.bottom.toPx(true) : (view.css.top ? view.css.top.toPx(true) : 0);
}
const angle = view.css.rotate ? this._getAngle(view.css.rotate) : 0;
// 当设置了 right 时，默认 align 用 right，反之用 left

13
painter.js
View File

@ -188,8 +188,17 @@ let screenK = 0.5;
function setStringPrototype() {
/* eslint-disable no-extend-native */
String.prototype.toPx = function toPx() {
const reg = /^[0-9]+([.]{1}[0-9]+){0,1}(rpx|px)$/g;
/**
* 是否支持负数
* @param {Boolean} minus 是否支持负数
*/
String.prototype.toPx = function toPx(minus) {
let reg;
if (minus) {
reg = /^-?[0-9]+([.]{1}[0-9]+){0,1}(rpx|px)$/g;
} else {
reg = /^[0-9]+([.]{1}[0-9]+){0,1}(rpx|px)$/g;
}
const results = reg.exec(this);
if (!this || !results) {
console.error(`The size: ${this} is illegal`);