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Change to move cursor on hover

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This commit is contained in:
Guillermo Peralta Scura 2020-01-08 21:42:19 -03:00
parent 299e7e9099
commit 3765d59aac
1 changed files with 27 additions and 7 deletions
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34
src/index.tsx
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@ -98,6 +98,15 @@ let lastCanvasHeight = -1;
let lastMouseUp: ((e: any) => void) | null = null; let lastMouseUp: ((e: any) => void) | null = null;
export function viewportCoordsToSceneCoords(
{ clientX, clientY }: { clientX: number; clientY: number },
{ scrollX, scrollY }: { scrollX: number; scrollY: number }
) {
const x = clientX - CANVAS_WINDOW_OFFSET_LEFT - scrollX;
const y = clientY - CANVAS_WINDOW_OFFSET_TOP - scrollY;
return { x, y };
}
export class App extends React.Component<{}, AppState> { export class App extends React.Component<{}, AppState> {
canvas: HTMLCanvasElement | null = null; canvas: HTMLCanvasElement | null = null;
rc: RoughCanvas | null = null; rc: RoughCanvas | null = null;
@ -611,9 +620,8 @@ export class App extends React.Component<{}, AppState> {
this.state.scrollY this.state.scrollY
); );
const x = const { x, y } = viewportCoordsToSceneCoords(e, this.state);
e.clientX - CANVAS_WINDOW_OFFSET_LEFT - this.state.scrollX;
const y = e.clientY - CANVAS_WINDOW_OFFSET_TOP - this.state.scrollY;
const element = newElement( const element = newElement(
this.state.elementType, this.state.elementType,
x, x,
@ -655,7 +663,7 @@ export class App extends React.Component<{}, AppState> {
// If we click on something // If we click on something
if (hitElement) { if (hitElement) {
if (hitElement.isSelected) { if (hitElement.isSelected) {
// If that element is not already selected, do nothing, // If that element is already selected, do nothing,
// we're likely going to drag it // we're likely going to drag it
} else { } else {
// We unselect every other elements unless shift is pressed // We unselect every other elements unless shift is pressed
@ -932,9 +940,8 @@ export class App extends React.Component<{}, AppState> {
this.forceUpdate(); this.forceUpdate();
}} }}
onDoubleClick={e => { onDoubleClick={e => {
const x = const { x, y } = viewportCoordsToSceneCoords(e, this.state);
e.clientX - CANVAS_WINDOW_OFFSET_LEFT - this.state.scrollX;
const y = e.clientY - CANVAS_WINDOW_OFFSET_TOP - this.state.scrollY;
const elementAtPosition = getElementAtPosition(elements, x, y); const elementAtPosition = getElementAtPosition(elements, x, y);
const element = newElement( const element = newElement(
@ -1007,6 +1014,19 @@ export class App extends React.Component<{}, AppState> {
} }
}); });
}} }}
onMouseMove={e => {
const hasDeselectedButton = Boolean(e.buttons);
if (hasDeselectedButton || this.state.elementType !== "selection") {
return;
}
const { x, y } = viewportCoordsToSceneCoords(e, this.state);
const hitElement = getElementAtPosition(elements, x, y);
if (hitElement) {
document.documentElement.style.cursor = `move`;
} else {
document.documentElement.style.cursor = ``;
}
}}
/> />
</div> </div>
); );