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only update canvas dimensions when needed

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This commit is contained in:
meganrogge
2022-03-15 17:38:15 -04:00
parent 19b212d570
commit 8ccbef850e
2 changed files with 13 additions and 15 deletions
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src/browser/Decorations/BufferDecorationRenderer.ts
-1
View File
@@ -109,6 +109,5 @@ export class BufferDecorationRenderer extends Disposable {
private _removeDecoration(decoration: IInternalDecoration): void {
this._decorationElements.get(decoration)?.remove();
this._decorationElements.delete(decoration);
decoration.dispose();
}
}
src/browser/Decorations/OverviewRulerRenderer.ts
+13 -14
View File
@@ -35,16 +35,13 @@ export class OverviewRulerRenderer extends Disposable {
} else {
this._ctx = ctx;
}
this._canvas.style.width = `${this._width}px`;
this._canvas.style.height = `${this._screenElement.clientHeight}px`;
this._canvas.width = Math.floor((this._width)* window.devicePixelRatio);
this._canvas.height = Math.floor(this._screenElement.clientHeight * window.devicePixelRatio);
this._queueRefresh(true);
this.register(this._bufferService.buffers.onBufferActivate(() => {
this._canvas!.style.display = this._bufferService.buffer === this._bufferService.buffers.alt ? 'none' : 'block';
}));
this.register(this._renderService.onRenderedBufferChange(() => this._queueRefresh()));
this.register(this._renderService.onDimensionsChange(() => this._queueRefresh()));
this.register(addDisposableDomListener(window, 'resize', () => this._queueRefresh()));
this.register(this._renderService.onDimensionsChange(() => this._queueRefresh(true)));
this.register(addDisposableDomListener(window, 'resize', () => this._queueRefresh(true)));
this.register(this._decorationService.onDecorationRegistered(() => this._queueRefresh()));
this.register(this._decorationService.onDecorationRemoved(decoration => this._removeDecoration(decoration)));
this.register(this._optionsService.onOptionChange(o => {
@@ -91,12 +88,14 @@ export class OverviewRulerRenderer extends Disposable {
);
}
private _refreshDecorations(): void {
this._canvas.style.width = `${this._width}px`;
this._canvas.style.height = `${this._screenElement.clientHeight}px`;
this._canvas.width = Math.floor((this._width)* window.devicePixelRatio);
this._canvas.height = Math.floor(this._screenElement.clientHeight * window.devicePixelRatio);
private _refreshDecorations(updateCanvasDimensions?: boolean): void {
if (updateCanvasDimensions) {
this._canvas.style.width = `${this._width}px`;
this._canvas.style.height = `${this._screenElement.clientHeight}px`;
this._canvas.width = Math.floor((this._width)* window.devicePixelRatio);
this._canvas.height = Math.floor(this._screenElement.clientHeight * window.devicePixelRatio);
}
this._ctx.clearRect(0, 0, this._canvas.width, this._canvas.height);
for (const decoration of this._decorationService.decorations) {
this._renderDecoration(decoration);
}
@@ -111,12 +110,12 @@ export class OverviewRulerRenderer extends Disposable {
decoration.onRenderEmitter.fire(this._canvas);
}
private _queueRefresh(): void {
private _queueRefresh(updateCanvasDimensions?: boolean): void {
if (this._animationFrame !== undefined) {
return;
}
this._animationFrame = window.requestAnimationFrame(() => {
this._refreshDecorations();
this._refreshDecorations(updateCanvasDimensions);
this._animationFrame = undefined;
});
}