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Code Releases Wiki Activity

feat: resize multiple curved lines (#1596)

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Daishi Kato 2020-05-14 23:56:14 +09:00 committed by GitHub
parent 828c9c4d65
commit f6be200388
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 72 additions and 23 deletions
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95
src/element/resizeElements.ts
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@ -173,6 +173,21 @@ const resizeSingleTwoPointElement = (
}
};
const rescalePointsInElement = (
element: NonDeletedExcalidrawElement,
width: number,
height: number,
) =>
isLinearElement(element)
? {
points: rescalePoints(
0,
width,
rescalePoints(1, height, element.points),
),
}
: {};
const resizeSingleElement = (
element: NonDeletedExcalidrawElement,
resizeHandle: "n" | "s" | "w" | "e" | "nw" | "ne" | "sw" | "se",
@ -220,15 +235,7 @@ const resizeSingleElement = (
const deltaY1 = (y1 - nextY1) / 2;
const deltaX2 = (x2 - nextX2) / 2;
const deltaY2 = (y2 - nextY2) / 2;
const rescaledPoints = isLinearElement(element)
? {
points: rescalePoints(
0,
nextWidth,
rescalePoints(1, nextHeight, element.points),
),
}
: {};
const rescaledPoints = rescalePointsInElement(element, nextWidth, nextHeight);
const [finalX1, finalY1, finalX2, finalY2] = getResizedElementAbsoluteCoords(
{
...element,
@ -296,9 +303,19 @@ const resizeMultipleElements = (
elements.forEach((element) => {
const width = element.width * scale;
const height = element.height * scale;
const x = element.x + (element.x - x1) * (scale - 1);
const y = element.y + (element.y - y1) * (scale - 1);
mutateElement(element, { width, height, x, y });
const [origX1, origY1] = getElementAbsoluteCoords(element);
const rescaledPoints = rescalePointsInElement(element, width, height);
const [finalX1, finalY1] = getResizedElementAbsoluteCoords(
{
...element,
...rescaledPoints,
},
width,
height,
);
const x = element.x + (origX1 - x1) * (scale - 1) + origX1 - finalX1;
const y = element.y + (origY1 - y1) * (scale - 1) + origY1 - finalY1;
mutateElement(element, { width, height, x, y, ...rescaledPoints });
});
}
break;
@ -312,9 +329,19 @@ const resizeMultipleElements = (
elements.forEach((element) => {
const width = element.width * scale;
const height = element.height * scale;
const x = element.x - (x2 - element.x) * (scale - 1);
const y = element.y - (y2 - element.y) * (scale - 1);
mutateElement(element, { width, height, x, y });
const [, , origX2, origY2] = getElementAbsoluteCoords(element);
const rescaledPoints = rescalePointsInElement(element, width, height);
const [, , finalX2, finalY2] = getResizedElementAbsoluteCoords(
{
...element,
...rescaledPoints,
},
width,
height,
);
const x = element.x - (x2 - origX2) * (scale - 1) + origX2 - finalX2;
const y = element.y - (y2 - origY2) * (scale - 1) + origY2 - finalY2;
mutateElement(element, { width, height, x, y, ...rescaledPoints });
});
}
break;
@ -328,9 +355,19 @@ const resizeMultipleElements = (
elements.forEach((element) => {
const width = element.width * scale;
const height = element.height * scale;
const x = element.x + (element.x - x1) * (scale - 1);
const y = element.y - (y2 - element.y) * (scale - 1);
mutateElement(element, { width, height, x, y });
const [origX1, , , origY2] = getElementAbsoluteCoords(element);
const rescaledPoints = rescalePointsInElement(element, width, height);
const [finalX1, , , finalY2] = getResizedElementAbsoluteCoords(
{
...element,
...rescaledPoints,
},
width,
height,
);
const x = element.x + (origX1 - x1) * (scale - 1) + origX1 - finalX1;
const y = element.y - (y2 - origY2) * (scale - 1) + origY2 - finalY2;
mutateElement(element, { width, height, x, y, ...rescaledPoints });
});
}
break;
@ -344,9 +381,19 @@ const resizeMultipleElements = (
elements.forEach((element) => {
const width = element.width * scale;
const height = element.height * scale;
const x = element.x - (x2 - element.x) * (scale - 1);
const y = element.y + (element.y - y1) * (scale - 1);
mutateElement(element, { width, height, x, y });
const [, origY1, origX2] = getElementAbsoluteCoords(element);
const rescaledPoints = rescalePointsInElement(element, width, height);
const [, finalY1, finalX2] = getResizedElementAbsoluteCoords(
{
...element,
...rescaledPoints,
},
width,
height,
);
const x = element.x - (x2 - origX2) * (scale - 1) + origX2 - finalX2;
const y = element.y + (origY1 - y1) * (scale - 1) + origY1 - finalY1;
mutateElement(element, { width, height, x, y, ...rescaledPoints });
});
}
break;
@ -357,8 +404,10 @@ const resizeMultipleElements = (
export const canResizeMutlipleElements = (
elements: readonly NonDeletedExcalidrawElement[],
) => {
return elements.every((element) =>
["rectangle", "diamond", "ellipse"].includes(element.type),
return elements.every(
(element) =>
["rectangle", "diamond", "ellipse"].includes(element.type) ||
(isLinearElement(element) && element.points.length > 2),
);
};