Finished implementing layers

Updated readme with the features that should be implemented.

README.md

@@ -12,6 +12,11 @@ The next version is mostly focused on adding missing essential features and port
 
 Suggestions / Planned features:
 
+- Line tool
+- Resize canvas
+- Snap brush preview to pixel grid
+- Move selection with arrows
+
 - Custom color picker
     - custom code without dependencies
     - more features such as sliders / color modes
@@ -23,8 +28,6 @@ Suggestions / Planned features:
     - Stack colors when too many
     - Fix popups
 
-- Copy/paste
-    - Add as selection
 - Show colors which would need to be added to palette
 
 - Palette option remove unused colors

js/_getCursorPosition.js

@@ -18,10 +18,6 @@ function getCursorPosition(e) {
     return [x,y];
 }
 
-// TODO: apply the function below to every getCursorPosition call
-
-// TODO: FIX THIS BELOW
-
 //get cursor position relative to canvas
 function getCursorPositionRelative(e, layer) {
     var x;

js/_history.js

@@ -162,17 +162,47 @@ function HistoryStateDeleteLayer(layerData, before, index) {
     saveHistoryState(this);
 }
 
-function HistoryStateMoveLayer(layer1, layer2) {
-    this.layer1 = layer1;
-    this.layer2 = layer2;
+function HistoryStateMoveTwoLayers(layer, oldIndex, newIndex) {
+    this.layer = layer;
+    this.oldIndex = oldIndex;
+    this.newIndex = newIndex;
 
     this.undo = function() {
-        swapLayerEntries(layer1, layer2, false);
+        layer.canvas.style.zIndex = oldIndex;
         redoStates.push(this);
     };
 
     this.redo = function() {
-        swapLayerEntries(layer1, layer2, false);
+        layer.canvas.style.zIndex = newIndex;
+        undoStates.push(this);
+    };
+
+    saveHistoryState(this);
+}
+
+function HistoryStateMoveLayer(afterToDrop, toDrop, static, nMoved) {
+    this.beforeToDrop = afterToDrop;
+    this.toDrop = toDrop;
+
+    this.undo = function() {
+        toDrop.menuEntry.remove();
+
+        if (afterToDrop != null) {
+            layerList.insertBefore(toDrop.menuEntry, afterToDrop)
+        }
+        else {
+            layerList.append(toDrop.menuEntry);
+        }
+
+        for (let i=0; i<nMoved; i++) {
+            undo();
+        }
+
+        redoStates.push(this);
+    };
+
+    this.redo = function() {
+        moveLayers(toDrop.menuEntry.id, static.menuEntry.id, true);
         undoStates.push(this);
     };
 

js/_layer.js

@@ -5,28 +5,9 @@
       the layers they created? That'd be cool, even for the app users, that could just double click on a lospec
       file for it to be opened right in the pixel editor
 
-    HISTORY:
-    - Save merge layers
-    - Save flatten layers
-
     OPTIONAL:
 
     1 - Fix issues 
-    2 - Add a Replace feature so that people can replace a colour without editing the one in the palette
-        (right click->replace colour in layers? in that case we'd have to implement multiple layers selection)
-
-    THINGS TO TEST:
-
-    1 - Undo / redo
-*/
-
-/*
-    MORE TODO LIST:
-
-    - Resize canvas (must make a simple editor to preview the changes)
-    - Resize sprite
-    - Refactor the code so that every instance of "canvas" and "context" is replaced by currentLayer.canvas
-      and currentLayer.context
 */
 
 let layerList;
@@ -125,6 +106,7 @@ class Layer {
     }
 
     layerDragStart(element) {
+        layerList.children[layerList.childElementCount - 2].setAttribute("draggable", "true");
         layerDragSource = this;
         element.dataTransfer.effectAllowed = 'move';
         element.dataTransfer.setData('text/html', this.id);
@@ -168,6 +150,7 @@ class Layer {
 
     layerDragEnd(element) {
         this.classList.remove('layerdragover');
+        layerList.children[layerList.childElementCount - 2].setAttribute("draggable", "false");
     }    
 
     // Resizes canvas
@@ -462,19 +445,14 @@ function renameLayer(event) {
 
 // Swaps two layer entries in the layer menu
 function moveLayers(toDropLayer, staticLayer, saveHistory = true) {
-    let entry1 = document.getElementById(toDropLayer);
-    let entry2 = document.getElementById(staticLayer);
-
     let toDrop = getLayerByID(toDropLayer);
     let static = getLayerByID(staticLayer);
     let layerCopy = layers;
-    let tmpZIndex;
 
-    let after2 = entry2.nextSibling;
-    let parent = entry1.parentNode;
+    let beforeToDrop = toDrop.menuEntry.nextElementSibling;
+    let nMoved = 0;
 
     layerCopy.sort((a, b) => (a.canvas.style.zIndex > b.canvas.style.zIndex) ? 1 : -1);
-    console.log(layerCopy.map(a => a.canvas.style.zIndex));
 
     let toDropIndex = layerCopy.indexOf(toDrop);
     let staticIndex = layerCopy.indexOf(static);
@@ -482,17 +460,30 @@ function moveLayers(toDropLayer, staticLayer, saveHistory = true) {
     layerList.insertBefore(toDrop.menuEntry, static.menuEntry);
 
     if (toDropIndex < staticIndex) {
-        console.log("UO");
         let tmp = toDrop.canvas.style.zIndex;
         let tmp2;
 
         for (let i=toDropIndex+1; i<=staticIndex; i++) {
             tmp2 = layerCopy[i].canvas.style.zIndex;
+
+            if (saveHistory) {
+                new HistoryStateMoveTwoLayers(layerCopy[i], tmp2, tmp);
+            }
+
             layerCopy[i].canvas.style.zIndex = tmp;
             tmp = tmp2;
+            nMoved++;
+        }
+
+        if (saveHistory) {
+            new HistoryStateMoveTwoLayers(toDrop, toDrop.canvas.style.zIndex, tmp);
         }
 
         toDrop.canvas.style.zIndex = tmp;
+        
+        if (saveHistory) {
+            new HistoryStateMoveLayer(beforeToDrop, toDrop, static, nMoved);
+        }
     }
     else {
         // BUG QUI
@@ -501,35 +492,26 @@ function moveLayers(toDropLayer, staticLayer, saveHistory = true) {
 
         for (let i=toDropIndex-1; i>staticIndex; i--) {
             tmp2 = layerCopy[i].canvas.style.zIndex;
+
+            if (saveHistory) {
+                new HistoryStateMoveTwoLayers(layerCopy[i], tmp2, tmp);
+            }
+
             layerCopy[i].canvas.style.zIndex = tmp;
             tmp = tmp2;
+            nMoved++;
+        }
+
+        if (saveHistory) {
+            new HistoryStateMoveTwoLayers(toDrop, toDrop.canvas.style.zIndex, tmp);
         }
 
         toDrop.canvas.style.zIndex = tmp;
-    }
 
-    /*
-    console.log("id1: " + toDrop + ", id2: " + static);
-
-    tmpZIndex = layer1.canvas.style.zIndex;
-    layer1.canvas.style.zIndex = layer2.canvas.style.zIndex;
-    layer2.canvas.style.zIndex = tmpZIndex;
-
-    parent.insertBefore(entry2, entry1);
-
-    if (after2) {
-        if (after2 == entry1) {
-            parent.prepend(entry1);
-        }
-        else {
-            parent.insertBefore(entry1, after2);
-        }
-    } else {
-       parent.appendChild(entry1);
-    }
-    */
         if (saveHistory) {
-        new HistoryStateMoveLayer(toDrop, static);
+            new HistoryStateMoveLayer(beforeToDrop, toDrop, static, nMoved);
+        }
+
     }
 }
 

js/_mouseEvents.js

@@ -1,5 +1,4 @@
 var currentMouseEvent;
-// TODO: replace every position calculation with lastMousePos
 var lastMousePos;
 
 //mousedown - start drawing
@@ -75,7 +74,6 @@ window.addEventListener("mouseup", function (mouseEvent) {
 
 	if (currentTool.name == 'eyedropper' && mouseEvent.target.className == 'drawingCanvas') {
 		var cursorLocation = getCursorPosition(mouseEvent);
-		// TODO: adjust so that if the picked colour is transparent, the underlying layer is checked
 		var selectedColor = getEyedropperColor(cursorLocation);
 		var newColor = rgbToHex(selectedColor[0],selectedColor[1],selectedColor[2]);
 
@@ -96,8 +94,9 @@ window.addEventListener("mouseup", function (mouseEvent) {
 
 	      	//set current color
 
-	      	// TODO: set it for all the layers
-	      	context.fillStyle = '#'+newColor;
+			for (let i=2; i<layers.length; i++) {
+				layers[i].context.fillStyle = '#' + newColor;
+			}
 
 	      	//make color selected
 	      	colors[i].parentElement.classList.add('selected');

js/_newPixel.js

@@ -41,11 +41,6 @@ function newPixel (width, height, palette) {
 	    canvas = currentLayer.canvas;
 	    context = currentLayer.context;
 	    canvas.style.zIndex = 2;
-
-		// TODO: clean layers before creating a new pixel
-		// Devo togliere tutte le entries tranne la prima
-		// Devo pulire la preview della prima entry
-		// Devo cancellare tutte le tele tranne quella con id pixel-canvas
 	}
 
     // Adding the checkerboard behind it

js/_rectSelect.js

@@ -98,8 +98,6 @@ function drawRect(x, y) {
     vfxContext.rect(startX, startY, x - startX, y - startY);
 
     vfxContext.stroke();
-
-    // TODO: make the rect blink from black to white in case of dark backgrounds
 }
 
 function applyChanges() {

views/pixel-editor.hbs

@@ -1,10 +1,4 @@
 <!DOCTYPE html>
-<!--todo: credit RECTANGULAR SELECTION ICON BY https://www.flaticon.com/authors/pixel-perfect or
-    design an original icon (this is just a placeholder)
-
-    Must also credit this guy for the rectangle tool
-    Icons made by <a href="https://www.flaticon.com/authors/freepik" title="Freepik">Freepik</a> from <a href="https://www.flaticon.com/" title="Flaticon"> www.flaticon.com</a>
--->
 <html>
 
 <head>