103 lines
2.8 KiB
TypeScript
103 lines
2.8 KiB
TypeScript
import { register } from "./register";
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import { getSelectedElements } from "../scene";
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import { getNonDeletedElements } from "../element";
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import { ExcalidrawElement, NonDeleted } from "../element/types";
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import { resizeMultipleElements } from "../element/resizeElements";
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import { AppState, PointerDownState } from "../types";
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import { arrayToMap } from "../utils";
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import { CODES, KEYS } from "../keys";
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import { getCommonBoundingBox } from "../element/bounds";
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import {
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bindOrUnbindSelectedElements,
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isBindingEnabled,
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unbindLinearElements,
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} from "../element/binding";
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import { updateFrameMembershipOfSelectedElements } from "../frame";
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export const actionFlipHorizontal = register({
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name: "flipHorizontal",
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trackEvent: { category: "element" },
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perform: (elements, appState, _, app) => {
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return {
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elements: updateFrameMembershipOfSelectedElements(
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flipSelectedElements(elements, appState, "horizontal"),
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appState,
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app,
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),
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appState,
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commitToHistory: true,
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};
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},
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keyTest: (event) => event.shiftKey && event.code === CODES.H,
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contextItemLabel: "labels.flipHorizontal",
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});
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export const actionFlipVertical = register({
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name: "flipVertical",
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trackEvent: { category: "element" },
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perform: (elements, appState, _, app) => {
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return {
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elements: updateFrameMembershipOfSelectedElements(
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flipSelectedElements(elements, appState, "vertical"),
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appState,
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app,
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),
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appState,
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commitToHistory: true,
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};
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},
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keyTest: (event) =>
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event.shiftKey && event.code === CODES.V && !event[KEYS.CTRL_OR_CMD],
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contextItemLabel: "labels.flipVertical",
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});
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const flipSelectedElements = (
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elements: readonly ExcalidrawElement[],
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appState: Readonly<AppState>,
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flipDirection: "horizontal" | "vertical",
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) => {
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const selectedElements = getSelectedElements(
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getNonDeletedElements(elements),
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appState,
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{
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includeBoundTextElement: true,
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includeElementsInFrames: true,
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},
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);
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const updatedElements = flipElements(
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selectedElements,
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appState,
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flipDirection,
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);
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const updatedElementsMap = arrayToMap(updatedElements);
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return elements.map(
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(element) => updatedElementsMap.get(element.id) || element,
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);
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};
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const flipElements = (
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elements: NonDeleted<ExcalidrawElement>[],
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appState: AppState,
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flipDirection: "horizontal" | "vertical",
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): ExcalidrawElement[] => {
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const { minX, minY, maxX, maxY } = getCommonBoundingBox(elements);
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resizeMultipleElements(
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{ originalElements: arrayToMap(elements) } as PointerDownState,
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elements,
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"nw",
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true,
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flipDirection === "horizontal" ? maxX : minX,
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flipDirection === "horizontal" ? minY : maxY,
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);
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(isBindingEnabled(appState)
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? bindOrUnbindSelectedElements
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: unbindLinearElements)(elements);
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return elements;
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};
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