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Implemented eraser tool. Must move and resize layers at the same time.

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Signed-off-by: npalomba <nicola.palomba@studenti.galileilivorno.gov.it>
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npalomba
2019-03-31 16:32:49 +02:00
parent 42a8ce3c4a
commit a9d380ec1d
17 changed files with 83 additions and 71 deletions
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30
js/_history.js
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@@ -5,19 +5,19 @@ const undoLogStyle = 'background: #87ff1c; color: black; padding: 5px;';
//prototype for undoing canvas changes
function HistoryStateEditCanvas () {
this.canvas = context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
this.canvas = currentLayer.context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
this.undo = function () {
var currentCanvas = context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
context.putImageData(this.canvas, 0, 0);
var currentCanvas = currentLayer.context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
currentLayer.context.putImageData(this.canvas, 0, 0);
this.canvas = currentCanvas;
redoStates.push(this);
}
this.redo = function () {
var currentCanvas = context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
context.putImageData(this.canvas, 0, 0);
var currentCanvas = currentLayer.context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
currentLayer.context.putImageData(this.canvas, 0, 0);
this.canvas = currentCanvas;
undoStates.push(this);
@@ -48,11 +48,11 @@ function HistoryStateAddColor (colorValue) {
//prototype for undoing deleted colors
function HistoryStateDeleteColor (colorValue) {
this.colorValue = colorValue;
this.canvas = context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
this.canvas = currentLayer.context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
this.undo = function () {
var currentCanvas = context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
context.putImageData(this.canvas, 0, 0);
var currentCanvas = currentLayer.context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
currentLayer.context.putImageData(this.canvas, 0, 0);
addColor(this.colorValue);
@@ -61,8 +61,8 @@ function HistoryStateDeleteColor (colorValue) {
}
this.redo = function () {
var currentCanvas = context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
context.putImageData(this.canvas, 0, 0);
var currentCanvas = currentLayer.context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
currentLayer.context.putImageData(this.canvas, 0, 0);
deleteColor(this.colorValue);
@@ -78,11 +78,11 @@ function HistoryStateDeleteColor (colorValue) {
function HistoryStateEditColor (newColorValue, oldColorValue) {
this.newColorValue = newColorValue;
this.oldColorValue = oldColorValue;
this.canvas = context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
this.canvas = currentLayer.context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
this.undo = function () {
var currentCanvas = context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
context.putImageData(this.canvas, 0, 0);
var currentCanvas = currentLayer.context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
currentLayer.context.putImageData(this.canvas, 0, 0);
//find new color in palette and change it back to old color
var colors = document.getElementsByClassName('color-button');
@@ -99,8 +99,8 @@ function HistoryStateEditColor (newColorValue, oldColorValue) {
}
this.redo = function () {
var currentCanvas = context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
context.putImageData(this.canvas, 0, 0);
var currentCanvas = currentLayer.context.getImageData(0, 0, canvasSize[0], canvasSize[1]);
currentLayer.context.putImageData(this.canvas, 0, 0);
//find old color in palette and change it back to new color
var colors = document.getElementsByClassName('color-button');