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import Ratio from "./math/Ratio";
import { Cell, CellRef, Doc, Grid, mapRowsInRange } from "./types";
import { ActiveCellSelection, Selection } from "./selection";
import renderGrid, {
getRenderedCell,
RenderedGrid,
} from "./components/grid/renderGrid";
function defaultDoc(): Doc {
const defaultCells: Cell[] = Array.from({ length: 16 }, () => ({
widthRatio: new Ratio(1, 16),
}));
return {
grids: [
{
id: window.crypto.randomUUID(),
baseCellSize: 42,
baseCellWidthRatio: new Ratio(1, 16),
parts: [
{
rows: Array.from({ length: 4 }, () => ({
cells: [...defaultCells],
})),
},
],
},
{
id: window.crypto.randomUUID(),
baseCellSize: 42,
baseCellWidthRatio: new Ratio(1, 16),
parts: [
{
rows: Array.from({ length: 2 }, () => ({
cells: [...defaultCells],
})),
},
{
rows: Array.from({ length: 2 }, () => ({
cells: [...defaultCells],
})),
},
],
},
],
};
}
export default class Notive {
#doc: Doc = defaultDoc();
get doc() {
return this.#doc;
}
#gridsById = Object.fromEntries(
this.#doc.grids.map((grid) => [grid.id, renderGrid(grid)]),
);
getGrid(id: string): RenderedGrid | undefined {
return this.#gridsById[id];
}
#selection?: Selection;
get selection() {
return this.#selection;
}
#pendingSelection?: Selection;
get pendingSelection() {
return this.#pendingSelection;
}
selectCell(gridId: string, cellRef: CellRef) {
this.#selection = new ActiveCellSelection(gridId, cellRef);
this.#dispatchSelectionChanged();
}
startSelecting(gridId: string, cellRef: CellRef) {
this.#pendingSelection = new ActiveCellSelection(gridId, cellRef);
this.#dispatchSelectionChanged();
}
extendSelection(cellRef: CellRef) {
const newSelection = this.pendingSelection?.extend(cellRef);
if (newSelection !== this.pendingSelection) {
this.#pendingSelection = newSelection;
this.#dispatchSelectionChanged();
}
}
finishSelecting() {
this.#selection = this.pendingSelection;
this.#pendingSelection = undefined;
this.#dispatchSelectionChanged();
}
#dispatchSelectionChanged() {
window.dispatchEvent(new CustomEvent("ntv:selectionchange"));
}
subdivideSelection(subdivisions: number) {
const selection = this.selection;
if (!selection) return;
const grid = this.getGrid(selection.gridId);
if (!grid) return;
const startCellRef = selection.startCellRef();
const endCellRef = selection.endCellRef();
const startCell = getRenderedCell(grid, startCellRef);
const endCell = getRenderedCell(grid, endCellRef);
if (!startCell || !endCell) return;
const startRatio =
startCell.startRatio.compare(endCell.startRatio) <= 0
? startCell.startRatio
: endCell.startRatio;
const endRatio =
startCell.endRatio.compare(endCell.endRatio) >= 0
? startCell.endRatio
: endCell.endRatio;
const totalWidth = endRatio.subtract(startRatio);
const subdivisionWidth = totalWidth.divideRatio(
Ratio.fromInteger(subdivisions),
);
const newDoc = mapRowsInRange(
this.doc,
selection.gridId,
startCellRef,
endCellRef,
(row, rowRef) => {
const newCells: Cell[] = [];
let currentRatio = Ratio.fromInteger(0);
for (const cell of row.cells) {
const cellStart = currentRatio;
const cellEnd = currentRatio.add(cell.widthRatio);
// Cell is entirely before selection
if (cellEnd.compare(startRatio) <= 0) {
newCells.push(cell);
currentRatio = cellEnd;
continue;
}
// Cell is entirely after selection
if (cellStart.compare(endRatio) >= 0) {
newCells.push(cell);
currentRatio = cellEnd;
continue;
}
// First cell that overlaps - insert subdivisions
if (newCells.length === 0 || currentRatio.compare(startRatio) < 0) {
for (let i = 0; i < subdivisions; i++) {
newCells.push({ widthRatio: subdivisionWidth });
}
}
currentRatio = cellEnd;
}
return { ...row, cells: newCells };
},
);
this.#doc = newDoc;
this.#gridsById = Object.fromEntries(
this.#doc.grids.map((grid) => [grid.id, renderGrid(grid)]),
);
window.dispatchEvent(
new CustomEvent("ntv:grid:change", {
detail: { gridId: selection.gridId },
}),
);
}
}
window.notive = new Notive();
|
