File size: 3,541 Bytes
f56a29b | 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 | import { useCallback, type RefObject } from 'react';
import { useCanvasStore } from '@/lib/store';
import type { CreateElementSelectionData } from '@/lib/types/edit';
export function useInsertFromCreateSelection(viewportRef: RefObject<HTMLElement | null>) {
const canvasScale = useCanvasStore.use.canvasScale();
const creatingElement = useCanvasStore.use.creatingElement();
const setCreatingElement = useCanvasStore.use.setCreatingElement();
// Calculate selection position and size from the start and end points of mouse drag selection
const formatCreateSelection = useCallback(
(selectionData: CreateElementSelectionData) => {
const { start, end } = selectionData;
if (!viewportRef.current) return;
const viewportRect = viewportRef.current.getBoundingClientRect();
const [startX, startY] = start;
const [endX, endY] = end;
const minX = Math.min(startX, endX);
const maxX = Math.max(startX, endX);
const minY = Math.min(startY, endY);
const maxY = Math.max(startY, endY);
const left = (minX - viewportRect.x) / canvasScale;
const top = (minY - viewportRect.y) / canvasScale;
const width = (maxX - minX) / canvasScale;
const height = (maxY - minY) / canvasScale;
return { left, top, width, height };
},
[viewportRef, canvasScale],
);
// Calculate line position and start/end points on canvas from the start and end points of mouse drag selection
const formatCreateSelectionForLine = useCallback(
(selectionData: CreateElementSelectionData) => {
const { start, end } = selectionData;
if (!viewportRef.current) return;
const viewportRect = viewportRef.current.getBoundingClientRect();
const [startX, startY] = start;
const [endX, endY] = end;
const minX = Math.min(startX, endX);
const maxX = Math.max(startX, endX);
const minY = Math.min(startY, endY);
const maxY = Math.max(startY, endY);
const left = (minX - viewportRect.x) / canvasScale;
const top = (minY - viewportRect.y) / canvasScale;
const width = (maxX - minX) / canvasScale;
const height = (maxY - minY) / canvasScale;
const _start: [number, number] = [startX === minX ? 0 : width, startY === minY ? 0 : height];
const _end: [number, number] = [endX === minX ? 0 : width, endY === minY ? 0 : height];
return {
left,
top,
start: _start,
end: _end,
};
},
[viewportRef, canvasScale],
);
// Insert element based on mouse selection position and size
const insertElementFromCreateSelection = useCallback(
(selectionData: CreateElementSelectionData) => {
if (!creatingElement) return;
const type = creatingElement.type;
if (type === 'text') {
const position = formatCreateSelection(selectionData);
if (position) {
// TODO: Implement createTextElement
}
} else if (type === 'shape') {
const position = formatCreateSelection(selectionData);
if (position) {
// TODO: Implement createShapeElement
}
} else if (type === 'line') {
const position = formatCreateSelectionForLine(selectionData);
if (position) {
// TODO: Implement createLineElement
}
}
setCreatingElement(null);
},
[creatingElement, formatCreateSelection, formatCreateSelectionForLine, setCreatingElement],
);
return {
formatCreateSelection,
insertElementFromCreateSelection,
};
}
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