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This is just better centerImagePart

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Dragon Fire
2024-04-28 11:35:10 -04:00
parent 7250e29f90
commit aa64faded2
2 changed files with 26 additions and 43 deletions
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util/Canvas.js
+23 -15
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@@ -275,20 +275,28 @@ module.exports = class CanvasUtil {
return { x, y, width, height };
}
static centerImagePart(data, maxWidth, maxHeight, widthOffset, heightOffest) {
let { width, height } = data;
if (width > maxWidth) {
const ratio = maxWidth / width;
width = maxWidth;
height *= ratio;
}
if (height > maxHeight) {
const ratio = maxHeight / height;
height = maxHeight;
width *= ratio;
}
const x = widthOffset + ((maxWidth / 2) - (width / 2));
const y = heightOffest + ((maxHeight / 2) - (height / 2));
return { x, y, width, height };
static centerImagePart(img, boxWidth, boxHeight, boxX, boxY) {
const imgAspectRatio = img.width / img.height;
const boxAspectRatio = boxWidth / boxHeight;
let drawWidth;
let drawHeight;
if (imgAspectRatio > boxAspectRatio) {
drawWidth = boxWidth;
drawHeight = drawWidth / imgAspectRatio;
if (drawHeight > boxHeight) {
drawHeight = boxHeight;
drawWidth = drawHeight * imgAspectRatio;
}
} else {
drawHeight = boxHeight;
drawWidth = drawHeight * imgAspectRatio;
if (drawWidth > boxWidth) {
drawWidth = boxWidth;
drawHeight = drawWidth / imgAspectRatio;
}
}
const drawX = boxX + ((boxWidth - drawWidth) / 2);
const drawY = boxY + ((boxHeight - drawHeight) / 2);
return { x: drawX, y: drawY, width: drawWidth, height: drawHeight };
}
};