mirror/pixel-editor
1
0
Fork 0
mirror of https://github.com/lospec/pixel-editor.git synced 2023-08-10 21:12:51 +03:00
Code Issues Projects Releases Wiki Activity

Started canvas trimming

Browse Source
This commit is contained in:
unsettledgames
2020-09-26 13:08:43 +02:00
parent 87a25c0137
commit 4223597659
3 changed files with 51 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
js/_resizeCanvas.js
View File

@ -166,6 +166,48 @@ function resizeCanvas(event, size) {
closeDialogue();
}
function trimCanvas() {
let minX, minY = Infinity;
let maxX, maxY = -Infinity;
rcPivot = "middle";
console.log("trimmo");
for (let i=1; i<nAppLayers; i++) {
let imageData = layers[i].context.getImageData(0, 0, layers[0].canvasSize[0], layers[0].canvasSize[1]);
let pixelPosition;
for (let i=0; i<imageData.length; i+=4) {
if (!isPixelEmpty([imageData[i], imageData[i + 1], imageData[i + 2], imageData[i + 3]])) {
pixelPosition = getPixelPosition(i);
if (pixelPosition.x > maxX) {
maxX = pixelPosition[0];
}
else if (pixelPosition.x < minX) {
minX = pixelPosition[0];
}
if (pixelPosition.y > maxY) {
maxY = pixelPosition[1];
}
else if (pixelPosition.y < minY) {
minY = pixelPosition[1];
}
}
}
}
console.log(maxX + ", " + minX + ", " + maxY + ", " + minY);
borders.right = maxX - layers[0].canvasSize[0];
borders.left = -minX;
borders.top = maxY - layers[0].canvasSize[1];
borders.bottom = minY;
resizeCanvas(null);
}
function rcUpdateBorders() {
// Getting input
borders.left = document.getElementById("rc-border-left").value;