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Replace the --viewport-scale-factor CSS variable

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This CSS variable is only used together with the `annotationCanvasMap`-functionality in the canvas-code, however its value can be *trivially* computed by using the older `--zoom-factor` CSS variable together with the `PixelsPerInch`-structure.
Rather than having *two different* CSS variables that are this closely linked, it seems better to simplify things by using just one CSS variable instead.
This commit is contained in:
Jonas Jenwald 2022-04-14 12:43:44 +02:00
parent 143ba30bef
commit e67cd7fae0
4 changed files with 4 additions and 10 deletions
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5
src/display/canvas.js
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@ -2726,8 +2726,9 @@ class CanvasGraphics {
canvasHeight
);
const { canvas, context } = this.annotationCanvas;
canvas.style.width = `calc(${width}px * var(--viewport-scale-factor))`;
canvas.style.height = `calc(${height}px * var(--viewport-scale-factor))`;
const viewportScaleFactorStr = `var(--zoom-factor) * ${PixelsPerInch.PDF_TO_CSS_UNITS}`;
canvas.style.width = `calc(${width}px * ${viewportScaleFactorStr})`;
canvas.style.height = `calc(${height}px * ${viewportScaleFactorStr})`;
this.annotationCanvasMap.set(id, canvas);
this.annotationCanvas.savedCtx = this.ctx;
this.ctx = context;