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feat: box添加限制，不会移动到屏幕外

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unanmed 2024-11-06 15:45:11 +08:00
parent 146fe97de3
commit 03713547d5
1 changed files with 65 additions and 24 deletions
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89
src/components/box.vue
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@ -81,10 +81,11 @@ let bottomB: HTMLDivElement;
let drag: HTMLElement;
let size: HTMLElement;
const width = ref(
isMobile ? window.innerWidth - 100 : window.innerWidth * 0.175
);
const height = ref(isMobile ? 250 : window.innerHeight - 100);
const maxWidth = window.innerWidth;
const maxHeight = window.innerHeight;
const width = ref(isMobile ? maxWidth - 100 : maxHeight * 0.175);
const height = ref(isMobile ? 250 : maxHeight - 100);
const left = ref(isMobile ? 30 : 50);
const top = ref(isMobile ? 30 : 50);
@ -103,13 +104,48 @@ async function click() {
let lastX = 0;
let lastY = 0;
function clampX(x: number) {
if (x < 16) x = 16;
const mx = maxWidth - 16 - main.offsetWidth;
if (x > mx) x = mx;
return x;
}
function clampY(y: number) {
if (y < 16) y = 16;
const my = maxHeight - 16 - main.offsetHeight;
if (y > my) y = my;
return y;
}
function clampPos(x: number, y: number) {
return { x: clampX(x), y: clampY(y) };
}
function clampWidth(w: number) {
if (w < 16) w = 16;
const mw = maxWidth - 16 - main.offsetLeft;
if (w > mw) w = mw;
return w;
}
function clampHeight(h: number) {
if (h < 16) h = 16;
const mh = maxHeight - 16 - main.offsetTop;
if (h > mh) h = mh;
return h;
}
function clampSize(w: number, h: number) {
return { w: clampWidth(w), h: clampHeight(h) };
}
function dragFn(x: number, y: number) {
const ox = main.offsetLeft;
const oy = main.offsetTop;
left.value = ox + x - lastX;
top.value = oy + y - lastY;
main.style.left = `${left.value}px`;
main.style.top = `${top.value}px`;
const { x: tx, y: ty } = clampPos(x, y);
left.value = tx;
top.value = ty;
main.style.left = `${tx}px`;
main.style.top = `${ty}px`;
moveSelected.value = true;
clearTimeout(moveTimeout);
@ -119,35 +155,40 @@ function dragFn(x: number, y: number) {
let right = left.value + width.value;
function leftDrag(x: number, y: number) {
main.style.left = `${x}px`;
width.value = right - x;
left.value = x;
const tx = clampX(x);
main.style.left = `${tx}px`;
width.value = right - tx;
left.value = tx;
main.style.width = `${width.value}px`;
}
let bottom = top.value + height.value;
function topDrag(x: number, y: number) {
main.style.top = `${y}px`;
height.value = bottom - y;
top.value = y;
const ty = clampY(y);
main.style.top = `${ty}px`;
height.value = bottom - ty;
top.value = ty;
main.style.height = `${height.value}px`;
}
function rightDrag(x: number, y: number) {
width.value = x - main.offsetLeft;
main.style.width = `${width.value}px`;
const w = clampWidth(x - main.offsetLeft);
width.value = w;
main.style.width = `${w}px`;
}
function bottomDrag(x: number, y: number) {
height.value = y - main.offsetTop;
main.style.height = `${height.value}px`;
const h = clampHeight(y - main.offsetTop);
height.value = h;
main.style.height = `${h}px`;
}
function resizeBox(x: number, y: number) {
width.value = x - main.offsetLeft;
height.value = y - main.offsetTop;
main.style.width = `${width.value}px`;
main.style.height = `${height.value}px`;
const { w, h } = clampSize(x - main.offsetLeft, y - main.offsetTop);
width.value = w;
height.value = h;
main.style.width = `${w}px`;
main.style.height = `${h}px`;
}
function resize() {