laya-coreui-es
Version:
laya核心库、ui库es版本，剔除了媒体、TTF等功能。基于 LayaAir-release_2.12.0 修改
153 lines (152 loc) • 6.77 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.BitmapFont = void 0;
const Rectangle_1 = require("../maths/Rectangle");
const Texture_1 = require("../resource/Texture");
const Handler_1 = require("../utils/Handler");
const ILaya_1 = require("../../ILaya");
class BitmapFont {
constructor() {
this._fontCharDic = {};
this._fontWidthMap = {};
this._maxWidth = 0;
this._spaceWidth = 10;
this.fontSize = 12;
this.autoScaleSize = false;
this.letterSpacing = 0;
}
loadFont(path, complete) {
this._path = path;
this._complete = complete;
if (!path || path.indexOf(".fnt") === -1) {
console.error('Bitmap font configuration information must be a ".fnt" file');
return;
}
ILaya_1.ILaya.loader.load([{ url: path, type: ILaya_1.ILaya.Loader.XML }, { url: path.replace(".fnt", ".png"), type: ILaya_1.ILaya.Loader.IMAGE }], Handler_1.Handler.create(this, this._onLoaded));
}
_onLoaded() {
this.parseFont(ILaya_1.ILaya.Loader.getRes(this._path), ILaya_1.ILaya.Loader.getRes(this._path.replace(".fnt", ".png")));
this._complete && this._complete.run();
}
parseFont(xml, texture) {
if (xml == null || texture == null)
return;
this._texture = texture;
var tX = 0;
var tScale = 1;
var tInfo = xml.getElementsByTagName("info");
if (!tInfo[0].getAttributeNode) {
return this.parseFont2(xml, texture);
}
this.fontSize = parseInt(tInfo[0].getAttributeNode("size").nodeValue);
var tPadding = tInfo[0].getAttributeNode("padding").nodeValue;
var tPaddingArray = tPadding.split(",");
this._padding = [parseInt(tPaddingArray[0]), parseInt(tPaddingArray[1]), parseInt(tPaddingArray[2]), parseInt(tPaddingArray[3])];
var chars = xml.getElementsByTagName("char");
var i = 0;
for (i = 0; i < chars.length; i++) {
var tAttribute = chars[i];
var tId = parseInt(tAttribute.getAttributeNode("id").nodeValue);
var xOffset = parseInt(tAttribute.getAttributeNode("xoffset").nodeValue) / tScale;
var yOffset = parseInt(tAttribute.getAttributeNode("yoffset").nodeValue) / tScale;
var xAdvance = parseInt(tAttribute.getAttributeNode("xadvance").nodeValue) / tScale;
var region = new Rectangle_1.Rectangle();
region.x = parseInt(tAttribute.getAttributeNode("x").nodeValue);
region.y = parseInt(tAttribute.getAttributeNode("y").nodeValue);
region.width = parseInt(tAttribute.getAttributeNode("width").nodeValue);
region.height = parseInt(tAttribute.getAttributeNode("height").nodeValue);
var tTexture = Texture_1.Texture.create(texture, region.x, region.y, region.width, region.height, xOffset, yOffset);
this._maxWidth = Math.max(this._maxWidth, xAdvance + this.letterSpacing);
this._fontCharDic[tId] = tTexture;
this._fontWidthMap[tId] = xAdvance;
}
}
parseFont2(xml, texture) {
if (xml == null || texture == null)
return;
this._texture = texture;
var tX = 0;
var tScale = 1;
var tInfo = xml.getElementsByTagName("info");
this.fontSize = parseInt(tInfo[0].attributes["size"].nodeValue);
var tPadding = tInfo[0].attributes["padding"].nodeValue;
var tPaddingArray = tPadding.split(",");
this._padding = [parseInt(tPaddingArray[0]), parseInt(tPaddingArray[1]), parseInt(tPaddingArray[2]), parseInt(tPaddingArray[3])];
var chars = xml.getElementsByTagName("char");
var i = 0;
for (i = 0; i < chars.length; i++) {
var tAttribute = chars[i].attributes;
var tId = parseInt(tAttribute["id"].nodeValue);
var xOffset = parseInt(tAttribute["xoffset"].nodeValue) / tScale;
var yOffset = parseInt(tAttribute["yoffset"].nodeValue) / tScale;
var xAdvance = parseInt(tAttribute["xadvance"].nodeValue) / tScale;
var region = new Rectangle_1.Rectangle();
region.x = parseInt(tAttribute["x"].nodeValue);
region.y = parseInt(tAttribute["y"].nodeValue);
region.width = parseInt(tAttribute["width"].nodeValue);
region.height = parseInt(tAttribute["height"].nodeValue);
var tTexture = Texture_1.Texture.create(texture, region.x, region.y, region.width, region.height, xOffset, yOffset);
this._maxWidth = Math.max(this._maxWidth, xAdvance + this.letterSpacing);
this._fontCharDic[tId] = tTexture;
this._fontWidthMap[tId] = xAdvance;
}
}
getCharTexture(char) {
return this._fontCharDic[char.charCodeAt(0)];
}
destroy() {
if (this._texture) {
for (var p in this._fontCharDic) {
var tTexture = this._fontCharDic[p];
if (tTexture)
tTexture.destroy();
}
this._texture.destroy();
this._fontCharDic = null;
this._fontWidthMap = null;
this._texture = null;
this._complete = null;
this._padding = null;
}
}
setSpaceWidth(spaceWidth) {
this._spaceWidth = spaceWidth;
}
getCharWidth(char) {
var code = char.charCodeAt(0);
if (this._fontWidthMap[code])
return this._fontWidthMap[code] + this.letterSpacing;
if (char === " ")
return this._spaceWidth + this.letterSpacing;
return 0;
}
getTextWidth(text) {
var tWidth = 0;
for (var i = 0, n = text.length; i < n; i++) {
tWidth += this.getCharWidth(text.charAt(i));
}
return tWidth;
}
getMaxWidth() {
return this._maxWidth;
}
getMaxHeight() {
return this.fontSize;
}
_drawText(text, sprite, drawX, drawY, align, width) {
var tWidth = this.getTextWidth(text);
var tTexture;
var dx = 0;
align === "center" && (dx = (width - tWidth) / 2);
align === "right" && (dx = (width - tWidth));
var tx = 0;
for (var i = 0, n = text.length; i < n; i++) {
tTexture = this.getCharTexture(text.charAt(i));
if (tTexture) {
sprite.graphics.drawImage(tTexture, drawX + tx + dx, drawY);
tx += this.getCharWidth(text.charAt(i));
}
}
}
}
exports.BitmapFont = BitmapFont;