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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 14816x 14816x 14816x 1x 1x 14815x 14815x 14815x 14815x 14815x 14815x 14815x 14815x 14816x 1x 1x 14814x 14814x 14816x 14816x 14816x 2x 2x 14812x 14812x 14812x 43002x 43002x 14812x 14812x 14812x 14812x 14816x 14816x 14816x 14816x 14812x 14812x 14812x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 5x 5x 5x 5x 5x 5x 5x 5x 5x 5x 3x 3x 5x 5x 5x 5x 5x 5x 5x 5x 5x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import {GeomElement, Align as align} from "./elements/GeomElement"
import {AllConstructions, E as e} from "./elements/Constructions"
import {PointElement} from "./elements/point/PointElement";
import {Slate} from "./Slate";
import {PlaneSlider} from "./elements/point/PlaneSlider";
import {colors, randomColor, lighten, darken, parseColor} from "./Colors";
import {createControls} from "./SlateControls";
export type IndexAllConstructions = AllConstructions;
export {align as Align};
export {e as E};
export let slates : Slate[] = [];
export interface IConstructionInfo {
name: string;
construction: IndexAllConstructions;
params: any[];
nameColor?: string | number;
vertexColor?: string | number;
edgeColor?: string | number;
faceColor?: string | number;
}
export interface IInitialization {
background : string;
title : string;
align? : align;
canvasid? : string;
pivot?: string;
font?: string;
fontsize?: number;
elements: (IConstructionInfo | string)[];
}
// Map Java element class names to E object keys
const typeMap: {[key: string]: string} = {
"point": "Point", "line": "Line", "circle": "Circle",
"polygon": "Polygon", "sector": "Sector", "plane": "Plane",
"sphere": "Sphere", "polyhedron": "Polyhedra"
};
// Parse a Java applet param value string into an IConstructionInfo.
// Format: "name;type;construction;arg1,arg2,...[;nameColor[;vertexColor[;edgeColor[;faceColor]]]]"
// Example: "M;point;midpoint;A,B;0;0" → { name: "M", construction: E.Point.midpoint, params: ["A","B"], nameColor: "0", vertexColor: "0" }
export function parseParam(value: string): IConstructionInfo {
let fields = value.split(";");
if (fields.length < 4) {
throw new Error(`parseParam: expected at least 4 semicolon-separated fields, got ${fields.length}: "${value}"`);
}
let name = fields[0];
let type = fields[1];
let construction = fields[2];
let data = fields[3];
// Look up the construction enum value
let typeKey = typeMap[type];
if (typeKey == null) {
throw new Error(`parseParam: unknown element type "${type}" in "${value}"`);
}
let enumObj = (e as any)[typeKey];
// Handle Java names that differ from TS enum keys
let enumKey = construction === "3points" ? "threePoints" : construction;
let constructionEnum = enumObj[enumKey];
if (constructionEnum == null) {
throw new Error(`parseParam: unknown construction "${type};${construction}" in "${value}"`);
}
// Parse params: split on comma, convert numeric strings to numbers
let params: any[] = data.split(",").map(s => {
let n = Number(s);
return (s !== "" && !isNaN(n)) ? n : s;
});
// Parse optional color fields (positions 4-7)
let result: IConstructionInfo = { name, construction: constructionEnum, params };
if (fields.length > 4 && fields[4] !== undefined) result.nameColor = fields[4];
if (fields.length > 5 && fields[5] !== undefined) result.vertexColor = fields[5];
if (fields.length > 6 && fields[6] !== undefined) result.edgeColor = fields[6];
if (fields.length > 7 && fields[7] !== undefined) result.faceColor = fields[7];
return result;
}
// see https://stackoverflow.com/questions/4938346/canvas-width-and-height-in-html5
function resizeCanvasToDisplaySize(canvas: HTMLCanvasElement) : void {
const width = canvas.clientWidth;
const height = canvas.clientHeight;
if (canvas.width != width || canvas.height != height) {
canvas.width = width;
canvas.height = height;
}
}
export function init(i : IInitialization) {
// Java defaults to CENTRAL (0) — dynamic placement based on
// position relative to canvas center. Override with align param.
let defaultAlign : align = i.align != null ? i.align : align.CENTRAL;
let canvasid : string = i.canvasid;
if(canvasid == null) canvasid = "canvasid";
let canvas = document.getElementById(canvasid) as HTMLCanvasElement;
resizeCanvasToDisplaySize(canvas);
let slate : Slate = new Slate(canvas);
slates.push(slate);
// Set font — Java defaults: Font("TimesRoman", Font.ITALIC, 18)
let fontName = i.font != null ? i.font : "Times New Roman";
let fontSize = i.fontsize != null ? i.fontsize : 18;
GeomElement.setFont(fontName, fontSize);
// Parse background through parseColor so HSB triples like "35,19,100"
// are converted to valid CSS rgb() strings for ctx.fillStyle.
slate.bgcolor = parseColor(i.background, "#ffffff", "#ffffff");
for(let raw of i.elements) {
let param: IConstructionInfo = typeof raw === "string" ? parseParam(raw) : raw;
let element = slate.createElement(param.construction, param.params, param.name);
element.align = defaultAlign;
// Name string
let defaultNameColor = element instanceof PointElement ? "black" : null;
element.nameColor = parseColor(param.nameColor, defaultNameColor, slate.bgcolor);
let defaultVertexColor = element.draggable ?
((element instanceof PlaneSlider) ?
'red' : 'orange')
: 'black';
element.vertexColor = parseColor(param.vertexColor, defaultVertexColor, slate.bgcolor);
element.edgeColor = parseColor(param.edgeColor, "black", slate.bgcolor);
let lighterColor = lighten(slate.bgcolor);
let defaultFaceColor = element.dimension == 2 ? lighterColor : null;
element.faceColor = parseColor(param.faceColor, defaultFaceColor, slate.bgcolor);
}
if(i.pivot != null) {
slate.setPivot(i.pivot);
}
slate.update();
slate.updateCoordinates(0);
// Add UI controls (reset, maximize, new window) if running in browser
if (canvas && canvas.parentElement) {
createControls(slate, canvas, i);
}
}
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