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Merge branch 'master' into pxlvxl-master

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Nicola
2022-10-24 12:48:08 +02:00
parent 9e250c015e 9eba2f6fd7
commit e51f510392
17 changed files with 993 additions and 19 deletions
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73
js/Util.js
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@ -130,4 +130,77 @@ class Util {
static cursorInCanvas(canvasSize, mousePos) {
return mousePos[0] >= 0 && mousePos[1] >= 0 && canvasSize[0] > mousePos[0] && canvasSize[1] > mousePos[1];
}
static getFileExtension(fileName) {
return (fileName.substring(fileName.lastIndexOf('.')+1, fileName.length) || fileName).toLowerCase();
}
static getCanvasBorders() {
}
/**
* Determines the x and y offset for drawing images at a specific point 'topleft', 'middle', etc.
*
* @param {*} pivot A string representing the position of the pivot 'topleft', 'middle', etc.
* @param {*} width Width of the bounds often represents the canvas width.
* @param {*} height Height of the bounds often represents the canvas height.
* @param {*} imageWidth Substracts the offset from calculated x position of the pivot. Defaults to 0.
* @param {*} imageHeight Subtracts the offset from the calculated y position of the pivot. Defaults to 0.
*
* @returns Object containing the x and y offset for the pivot.
*/
static getPivotPosition(pivot, width, height, imageWidth = 0, imageHeight = 0) {
let position = {
x: 0,
y: 0
};
let centerX = width / 2;
let centerY = height / 2;
switch (pivot)
{
case 'topleft':
position.x = 0;
position.y = 0;
break;
case 'top':
position.x = centerX - (imageWidth / 2);
position.y = 0;
break;
case 'topright':
position.x = width - imageWidth;
position.y = 0;
break;
case 'left':
position.x = 0;
position.y = centerY - (imageHeight / 2);
break;
case 'middle':
position.x = centerX - (imageWidth / 2);
position.y = centerY - (imageHeight / 2);
break;
case 'right':
position.x = width - imageWidth;
position.y = centerY - (imageHeight / 2);
break;
case 'bottomleft':
position.x = 0;
position.y = height - imageHeight;
break;
case 'bottom':
position.x = centerX - (imageWidth / 2);
position.y = height - imageHeight;
break;
case 'bottomright':
position.x = width - imageWidth
position.y = height - imageHeight;
break;
default:
break;
}
return position;
}
}