import {FontStyle, TextStyle, TextWeight, fontStyleTofont} from "../canva";
import { JSDOM } from "jsdom";
import * as fontkit from "fontkit";
+import * as util from "node:util";
+import * as breakLines from "./breakLines";
/**
* TYPES
BTT,
}
+/**
+ * Horizonal glue.
+ * - stretchFactor : the stretch factor in float
+ */
+export interface HGlue{
+ stretchFactor: number
+}
+
+export interface BreakPoint{
+ original : BoxesItem,
+ newLined : BoxesItem
+}
+
+export type BoxesItem = HGlue | Box | BreakPoint | BoxesItem[] ;
+
/**
* frame box is a subclass of box
* - directionInsideLine : text direction inside a line
for (let i = 0; i < arr.length; i++){
var item = arr[i];
if (!Array.isArray(item) && item.match(spacePattern)){
- result.push([ 'bp', item, "" ]); // push a newline command to the result `tkTree`
+ // push a breakpoint command to the result `tkTree`
+ result.push([ 'bp', [["hglue", "0.1"], item] , "" ]);
}
else{
result.push(item);
* @param preprocessed
* @param defaultFontStyle
*/
-export async function calculateTextWidthHeight(element : tkTree, style : TextStyle): Promise<any> {
+export async function calculateTextWidthHeight(element : tkTree, style : TextStyle): Promise<BoxesItem[]> {
var res = [];
for (var i=0; i<element.length; i++){
res.push(await calculateTextWidthHeightAux(element[i], style));
}
- console.log(res);
+ res = res.flat();
return res;
}
* @param preprocessed
* @param defaultFontStyle
*/
-export async function calculateTextWidthHeightAux(element : tkTree, style : TextStyle): Promise<any> {
- var result : any = [];
+export async function calculateTextWidthHeightAux(element : tkTree, style : TextStyle): Promise<BoxesItem> {
+ var result : BoxesItem = [];
}else if(element[0] == "bp"){
- let beforeNewLine = await calculateTextWidthHeightAux(element[1], style);
+
+ var beforeNewLine = await calculateTextWidthHeightAux(element[1], style);
+ if (Array.isArray(beforeNewLine)){
+ beforeNewLine = beforeNewLine.flat();
+ }
+
let afterNewLine = await calculateTextWidthHeightAux(element[2], style);
+ if (Array.isArray(afterNewLine)){
+ afterNewLine = afterNewLine.flat();
+ }
- return ["bp", beforeNewLine, afterNewLine];
- }else{
- return calculateTextWidthHeight(element[1], style);
+ let breakPointNode : BreakPoint = {
+ original : beforeNewLine,
+ newLined : afterNewLine,
+ }
+
+ return breakPointNode;
+ }else if(element[0] == "hglue" && !Array.isArray(element[1])){
+ let hGlue : HGlue = {stretchFactor : parseFloat(element[1])}
+ return hGlue;
+ }
+ else{
+ return calculateTextWidthHeight(element, style);
}
}
this.preprocessors.push(f);
}
- public generatePdf(){
+ public async generatePdf(){
// preprocessed
var preprocessed = this.mainStream;
for (var i = 0; i<this.preprocessors.length; i++){
// generate the width and height of the stream
let defaultFontStyle : TextStyle = this.attrs["defaultFrameStyle"].textStyle;
- calculateTextWidthHeight(preprocessed, defaultFontStyle);
+ let a = await calculateTextWidthHeight(preprocessed, defaultFontStyle);
// TODO
- console.log(preprocessed);
+ console.log(util.inspect(a, true, 100));
+ console.log(breakLines.totalCost(a,3,100));
}