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

Finished commenting the editor

Browse Source 
Also cleaned a few things, removed some unused variables
This commit is contained in:
unsettledgames
2020-12-31 16:47:56 +01:00
parent 9ef0e6ecea
commit fb1200162e
19 changed files with 299 additions and 100 deletions
Download Patch File Download Diff File Expand all files Collapse all files

123
js/_resizeCanvas.js
View File

@ -1,16 +1,31 @@
let resizeCanvasContainer = document.getElementById("resize-canvas");
let rcPivot = "middle";
let currentPivotObject;
let borders = {left: 0, right: 0, top: 0, bottom: 0};
/* This scripts contains all the code used to handle the canvas resizing */
// Resize canvas pop up window
let resizeCanvasContainer = document.getElementById("resize-canvas");
// Start pivot
let rcPivot = "middle";
// Selected pivot button
let currentPivotObject;
// Border offsets
let rcBorders = {left: 0, right: 0, top: 0, bottom: 0};
/** Opens the canvas resize window
*
*/
function openResizeCanvasWindow() {
// Initializes the inputs
initResizeCanvasInputs();
showDialogue('resize-canvas');
}
/** Initializes the canvas resizing input
*
*/
function initResizeCanvasInputs() {
// Getting the pivot buttons
let buttons = document.getElementsByClassName("pivot-button");
// Adding the event handlers for them
for (let i=0; i<buttons.length; i++) {
buttons[i].addEventListener("click", changePivot);
if (buttons[i].getAttribute("value").includes("middle")) {
@ -33,13 +48,21 @@ function initResizeCanvasInputs() {
console.log("Pivot selezionato: " + currentPivotObject);
}
/** Fired when a border offset is changed: it updates the width and height
*
* @param {*} event
*/
function rcChangedBorder(event) {
rcUpdateBorders();
document.getElementById("rc-width").value = parseInt(layers[0].canvasSize[0]) + borders.left + borders.right;
document.getElementById("rc-height").value = parseInt(layers[0].canvasSize[1]) + borders.top + borders.bottom;
document.getElementById("rc-width").value = parseInt(layers[0].canvasSize[0]) + rcBorders.left + rcBorders.right;
document.getElementById("rc-height").value = parseInt(layers[0].canvasSize[1]) + rcBorders.top + rcBorders.bottom;
}
/** Fired when width or height are changed: updates the border offsets
*
* @param {*} event
*/
function rcChangedSize(event) {
let widthOffset = Math.abs(document.getElementById("rc-width").value) - layers[0].canvasSize[0];
let heightOffset = Math.abs(document.getElementById("rc-height").value) - layers[0].canvasSize[1];
@ -54,12 +77,19 @@ function rcChangedSize(event) {
document.getElementById("rc-border-top").value = top;
document.getElementById("rc-border-bottom").value = bottom;
borders.left = left;
borders.right = right;
borders.top = top;
borders.bottom = bottom;
rcBorders.left = left;
rcBorders.right = right;
rcBorders.top = top;
rcBorders.bottom = bottom;
}
/** Resizes the canvas
*
* @param {*} event The event that triggered the canvas resizing
* @param {*} size The new size of the picture
* @param {*} customData Used when ctrl+z ing
* @param {*} saveHistory Should I save the history? You shouldn't if you're undoing
*/
function resizeCanvas(event, size, customData, saveHistory = true) {
let imageDatas = [];
let leftOffset = 0;
@ -87,8 +117,8 @@ function resizeCanvas(event, size, customData, saveHistory = true) {
if (saveHistory) {
// Saving history
new HistoryStateResizeCanvas(
{x: parseInt(layers[0].canvasSize[0]) + borders.left + borders.right,
y: parseInt(layers[0].canvasSize[1]) + borders.top + borders.bottom},
{x: parseInt(layers[0].canvasSize[0]) + rcBorders.left + rcBorders.right,
y: parseInt(layers[0].canvasSize[1]) + rcBorders.top + rcBorders.bottom},
{x: layers[0].canvasSize[0],
y: layers[0].canvasSize[1]},
@ -100,8 +130,8 @@ function resizeCanvas(event, size, customData, saveHistory = true) {
// Resize the canvases
for (let i=0; i<layers.length; i++) {
layers[i].canvasSize[0] = parseInt(layers[i].canvasSize[0]) + borders.left + borders.right;
layers[i].canvasSize[1] = parseInt(layers[i].canvasSize[1]) + borders.top + borders.bottom;
layers[i].canvasSize[0] = parseInt(layers[i].canvasSize[0]) + rcBorders.left + rcBorders.right;
layers[i].canvasSize[1] = parseInt(layers[i].canvasSize[1]) + rcBorders.top + rcBorders.bottom;
layers[i].canvas.width = layers[i].canvasSize[0];
layers[i].canvas.height = layers[i].canvasSize[1];
@ -121,42 +151,43 @@ function resizeCanvas(event, size, customData, saveHistory = true) {
topOffset = 0;
break;
case 'top':
leftOffset = (borders.left + borders.right) / 2;
leftOffset = (rcBorders.left + rcBorders.right) / 2;
topOffset = 0;
break;
case 'topright':
leftOffset = borders.left + borders.right;
leftOffset = rcBorders.left + rcBorders.right;
topOffset = 0;
break;
case 'left':
leftOffset = 0;
topOffset = (borders.top + borders.bottom) / 2;
topOffset = (rcBorders.top + rcBorders.bottom) / 2;
break;
case 'middle':
leftOffset = (borders.left + borders.right) / 2;
topOffset = (borders.top + borders.bottom) / 2;
leftOffset = (rcBorders.left + rcBorders.right) / 2;
topOffset = (rcBorders.top + rcBorders.bottom) / 2;
break;
case 'right':
leftOffset = borders.left + borders.right;
topOffset = (borders.top + borders.bottom) / 2;
leftOffset = rcBorders.left + rcBorders.right;
topOffset = (rcBorders.top + rcBorders.bottom) / 2;
break;
case 'bottomleft':
leftOffset = 0;
topOffset = borders.top + borders.bottom;
topOffset = rcBorders.top + rcBorders.bottom;
break;
case 'bottom':
leftOffset = (borders.left + borders.right) / 2;
topOffset = borders.top + borders.bottom;
leftOffset = (rcBorders.left + rcBorders.right) / 2;
topOffset = rcBorders.top + rcBorders.bottom;
break;
case 'bottomright':
leftOffset = borders.left + borders.right;
topOffset = borders.top + borders.bottom;
leftOffset = rcBorders.left + rcBorders.right;
topOffset = rcBorders.top + rcBorders.bottom;
break;
default:
console.log('Pivot does not exist, please report an issue at https://github.com/lospec/pixel-editor');
break;
}
// Putting all the data for each layer with the right offsets (decided by the pivot)
for (let i=0; i<layers.length; i++) {
if (layers[i].menuEntry != null) {
if (customData == undefined) {
@ -176,6 +207,11 @@ function resizeCanvas(event, size, customData, saveHistory = true) {
closeDialogue();
}
/** Trims the canvas so tat the sprite is perfectly contained in it
*
* @param {*} event
* @param {*} saveHistory Should I save the history? You shouldn't if you're undoing
*/
function trimCanvas(event, saveHistory) {
let minY = Infinity;
let minX = Infinity;
@ -189,6 +225,7 @@ function trimCanvas(event, saveHistory) {
rcPivot = "topleft";
console.log("debug");
// Computing the min and max coordinates in which there's a non empty pixel
for (let i=1; i<layers.length - nAppLayers; i++) {
let imageData = layers[i].context.getImageData(0, 0, layers[0].canvasSize[0], layers[0].canvasSize[1]);
let pixelPosition;
@ -226,10 +263,11 @@ function trimCanvas(event, saveHistory) {
minY = layers[0].canvasSize[1] - minY;
maxY = layers[0].canvasSize[1] - maxY;
borders.right = (maxX - layers[0].canvasSize[0]) + 1;
borders.left = -minX;
borders.top = maxY - layers[0].canvasSize[1] + 1;
borders.bottom = -minY;
// Setting the borders coherently with the values I've just computed
rcBorders.right = (maxX - layers[0].canvasSize[0]) + 1;
rcBorders.left = -minX;
rcBorders.top = maxY - layers[0].canvasSize[1] + 1;
rcBorders.bottom = -minY;
// Saving the data
for (let i=0; i<layers.length; i++) {
@ -241,11 +279,12 @@ function trimCanvas(event, saveHistory) {
console.log(imageDatas);
//console.log("sx: " + borders.left + "dx: " + borders.right + "top: " + borders.top + "btm: " + borders.bottom);
document.getElementById("rc-border-left").value = borders.left;
document.getElementById("rc-border-right").value = borders.right;
document.getElementById("rc-border-top").value = borders.top;
document.getElementById("rc-border-bottom").value = borders.bottom;
document.getElementById("rc-border-left").value = rcBorders.left;
document.getElementById("rc-border-right").value = rcBorders.right;
document.getElementById("rc-border-top").value = rcBorders.top;
document.getElementById("rc-border-bottom").value = rcBorders.bottom;
// Resizing the canvas with the decided border offsets
resizeCanvas(null, null, imageDatas.slice(), historySave);
// Resetting the previous pivot
rcPivot = prevPivot;
@ -253,16 +292,16 @@ function trimCanvas(event, saveHistory) {
function rcUpdateBorders() {
// Getting input
borders.left = document.getElementById("rc-border-left").value;
borders.right = document.getElementById("rc-border-right").value;
borders.top = document.getElementById("rc-border-top").value;
borders.bottom = document.getElementById("rc-border-bottom").value;
rcBorders.left = document.getElementById("rc-border-left").value;
rcBorders.right = document.getElementById("rc-border-right").value;
rcBorders.top = document.getElementById("rc-border-top").value;
rcBorders.bottom = document.getElementById("rc-border-bottom").value;
// Validating input
borders.left == "" ? borders.left = 0 : borders.left = Math.round(parseInt(borders.left));
borders.right == "" ? borders.right = 0 : borders.right = Math.round(parseInt(borders.right));
borders.top == "" ? borders.top = 0 : borders.top = Math.round(parseInt(borders.top));
borders.bottom == "" ? borders.bottom = 0 : borders.bottom = Math.round(parseInt(borders.bottom));
rcBorders.left == "" ? rcBorders.left = 0 : rcBorders.left = Math.round(parseInt(rcBorders.left));
rcBorders.right == "" ? rcBorders.right = 0 : rcBorders.right = Math.round(parseInt(rcBorders.right));
rcBorders.top == "" ? rcBorders.top = 0 : rcBorders.top = Math.round(parseInt(rcBorders.top));
rcBorders.bottom == "" ? rcBorders.bottom = 0 : rcBorders.bottom = Math.round(parseInt(rcBorders.bottom));
}
function changePivot(event) {