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Added back rect selection

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This commit is contained in:
unsettledgames 2021-11-08 22:25:30 +01:00
parent a56d7092fc
commit ea45fa4842
12 changed files with 193 additions and 208 deletions
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2
js/ColorModule.js
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@ -401,7 +401,7 @@ const ColorModule = (() => {
let dataLength = imageData.length;
for (let j=0; j<dataLength; j += 4) {
if (!isPixelEmpty(imageData[j])) {
if (!Util.isPixelEmpty(imageData[j])) {
let color = imageData[j]+','+imageData[j + 1]+','+imageData[j + 2];
if (!colors[color]) {

4
js/LayerList.js
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@ -83,8 +83,8 @@ const LayerList = (() => {
belowImageData.data[i+2], belowImageData.data[i+3]
];
if (isPixelEmpty(currentMovePixel)) {
if (!isPixelEmpty(belowImageData)) {
if (Util.isPixelEmpty(currentMovePixel)) {
if (!Util.isPixelEmpty(belowImageData)) {
toMergeImageData.data[i] = currentUnderlyingPixel[0];
toMergeImageData.data[i+1] = currentUnderlyingPixel[1];
toMergeImageData.data[i+2] = currentUnderlyingPixel[2];

8
js/ToolManager.js
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@ -9,11 +9,11 @@ const ToolManager = (() => {
panTool = new PanTool("pan", {type: 'custom'}, switchTool);
zoomTool = new ZoomTool("zoom", {type:'custom'});
rectSelectTool = new RectangularSelectionTool("rectselect",
{type: 'cursor', style:'crosshair'}, switchTool);
moveSelectionTool = new MoveSelectionTool("moveselection",
{type:'cursor', style:'crosshair'}, switchTool);
{type:'cursor', style:'crosshair'}, switchTool, brushTool);
rectSelectTool = new RectangularSelectionTool("rectselect",
{type: 'cursor', style:'crosshair'}, switchTool, moveSelectionTool);
currTool = brushTool;
currTool.onSelect();
canvasView.style.cursor = 'default';

111
js/_move.js
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@ -1,111 +0,0 @@
// REFACTOR: let's keep this one for the end
var imageDataToMove;
var originalDataPosition;
var canMoveSelection = false;
var lastMovePos;
var selectionCanceled = true;
var firstTimeMove = true;
// TODO: move with arrows
/** Updates the move preview so that is placed in the right position
*
* @param {*} mousePosition The position of the cursor
*/
function updateMovePreview(mousePosition) {
// I haven't canceled the selection
selectionCanceled = false;
// If it's the first time that I move the selection, I cut it from its original position
if (firstTimeMove) {
cutSelection(mousePosition);
}
firstTimeMove = false;
lastMousePos = mousePosition;
// clear the entire tmp layer
TMPLayer.context.clearRect(0, 0, TMPLayer.canvas.width, TMPLayer.canvas.height);
// put the image data on the tmp layer with offset
TMPLayer.context.putImageData(
imageDataToMove,
Math.round(lastMousePos[0] / zoom) - imageDataToMove.width / 2,
Math.round(lastMousePos[1] / zoom) - imageDataToMove.height / 2);
lastMovePos = lastMousePos;
// Moving the the rectangular ants
moveSelection(lastMousePos[0] / zoom, lastMousePos[1] / zoom, imageDataToMove.width, imageDataToMove.height);
}
/** Ends a selection, meaning that it makes the changes definitive and creates the history states
*
*/
function endSelection() {
// Clearing the tmp (move preview) and vfx (ants) layers
TMPLayer.context.clearRect(0, 0, TMPLayer.canvas.width, TMPLayer.canvas.height);
VFXLayer.context.clearRect(0, 0, VFXLayer.canvas.width, VFXLayer.canvas.height);
// Preparing an empty imageData with the size of the canvas
let cleanImageData = new ImageData(endX - startX, endY - startY);
// If I was moving something
if (imageDataToMove !== undefined) {
// Saving the current clipboard before editing it in order to merge it with the current layer
cleanImageData.data.set(imageDataToMove.data);
// I have to save the underlying data, so that the transparent pixels in the clipboard
// don't override the coloured pixels in the canvas
let underlyingImageData = currentLayer.context.getImageData(startX, startY, endX - startX, endY - startY);
for (let i=0; i<underlyingImageData.data.length; i+=4) {
let currentMovePixel = [
imageDataToMove.data[i], imageDataToMove.data[i+1],
imageDataToMove.data[i+2], imageDataToMove.data[i+3]
];
let currentUnderlyingPixel = [
underlyingImageData.data[i], underlyingImageData.data[i+1],
underlyingImageData.data[i+2], underlyingImageData.data[i+3]
];
// If the pixel of the clipboard is empty, but the one below it isn't, I use the pixel below
if (isPixelEmpty(currentMovePixel)) {
if (!isPixelEmpty(underlyingImageData)) {
imageDataToMove.data[i] = currentUnderlyingPixel[0];
imageDataToMove.data[i+1] = currentUnderlyingPixel[1];
imageDataToMove.data[i+2] = currentUnderlyingPixel[2];
imageDataToMove.data[i+3] = currentUnderlyingPixel[3];
}
}
}
// If I moved the selection before confirming it
if (lastMovePos !== undefined) {
// I put it in the new position
currentLayer.context.putImageData(
imageDataToMove,
Math.round(lastMovePos[0] / zoom) - imageDataToMove.width / 2,
Math.round(lastMovePos[1] / zoom) - imageDataToMove.height / 2);
}
else {
// I put it in the same position
currentLayer.context.putImageData(
imageDataToMove,
copiedStartX,
copiedStartY);
}
imageDataToMove.data.set(cleanImageData.data);
}
// Resetting all the flags
selectionCanceled = true;
isRectSelecting = false;
firstTimeMove = true;
imageDataToMove = undefined;
isPasting = false;
isCutting = false;
lastMovePos = undefined;
currentLayer.updateLayerPreview();
// Saving the history
new HistoryState().EditCanvas();
}

70
js/_rectSelect.js
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@ -1,70 +0,0 @@
/** Cuts the selection from its canvas and puts it in the tmp layer so it can be moved
*
* @param {*} mousePosition
*/
function cutSelection(mousePosition) {
// Getting the selected pixels
imageDataToMove = currentLayer.context.getImageData(startX, startY, endX - startX + 1, endY - startY + 1);
currentLayer.context.clearRect(startX - 0.5, startY - 0.5, endX - startX + 1, endY - startY + 1);
// Moving those pixels from the current layer to the tmp layer
TMPLayer.context.putImageData(imageDataToMove, startX + 1, startY);
}
function applyChanges() {
VFXLayer.canvas.style.zIndex = MIN_Z_INDEX;
}
// Checks whether the pointer is inside the selected area or not
function cursorInSelectedArea() {
// Getting the cursor position
let cursorPos = Input.getCursorPosition(Input.getCurrMouseEvent());
// Getting the coordinates relatively to the canvas
let x = cursorPos[0] / zoom;
let y = cursorPos[1] / zoom;
// This is to avoid rightX or topY being less than leftX or bottomY
let leftX = Math.min(startX, endX);
let rightX = Math.max(startX, endX);
let topY = Math.max(startY, endY);
let bottomY = Math.min(startY, endY);
if (leftX <= x && x <= rightX) {
if (bottomY <= y && y <= topY) {
return true;
}
return false;
}
return false;
}
/** Moves the rect ants to the specified position
*
* @param {*} x X coordinate of the rect ants
* @param {*} y Y coordinat of the rect ants
* @param {*} width Width of the selection
* @param {*} height Height of the selectin
*/
function moveSelection(x, y, width, height) {
// Getting the vfx context
let vfxContext = VFXLayer.context;
// Clearing the vfx canvas
vfxContext.clearRect(0, 0, VFXLayer.canvas.width, VFXLayer.canvas.height);
vfxContext.lineWidth = 1;
vfxContext.setLineDash([4]);
// Fixing the coordinates
startX = Math.round(Math.round(x) - 0.5 - Math.round(width / 2)) + 0.5;
startY = Math.round(Math.round(y) - 0.5 - Math.round(height / 2)) + 0.5;
endX = startX + Math.round(width);
endY = startY + Math.round(height);
// Drawing the rect
vfxContext.beginPath();
vfxContext.rect(startX, startY, width, height);
vfxContext.stroke();
}

2
js/_resizeCanvas.js
View File

@ -227,7 +227,7 @@ function trimCanvas(event, saveHistory) {
let pixelPosition;
for (let i=imageData.data.length - 1; i>= 0; i-=4) {
if (!isPixelEmpty(
if (!Util.isPixelEmpty(
[imageData.data[i - 3], imageData.data[i - 2],
-imageData.data[i - 1], imageData.data[i]])) {
pixelPosition = getPixelPosition(i);

6
js/_tools.js
View File

@ -35,7 +35,8 @@ class Tool {
}
onSelect() {
this.mainButton.parentElement.classList.add("selected");
if (this.mainButton != undefined)
this.mainButton.parentElement.classList.add("selected");
this.isSelected = true;
switch (this.cursorType.type) {
@ -83,7 +84,8 @@ class Tool {
}
onDeselect() {
this.mainButton.parentElement.classList.remove("selected");
if (this.mainButton != undefined)
this.mainButton.parentElement.classList.remove("selected");
this.isSelected = false;
}

2
js/pixel-editor.js
View File

@ -56,8 +56,6 @@
//=include _toolButtons.js
//=include FileManager.js
//=include TopMenuModule.js
//=include _rectSelect.js
//=include _move.js
//=include _ellipse.js
/**event listeners**/

4
js/tools/FillTool.js
View File

@ -53,7 +53,7 @@ class FillTool extends Tool {
//the color of the cluster that is being filled
let clusterColor = [tempImage.data[startingPosition],tempImage.data[startingPosition+1],tempImage.data[startingPosition+2], tempImage.data[startingPosition+3]];
//the new color to fill with
//the color to fill with
let fillColor = Color.hexToRgb(currentLayer.context.fillStyle);
//if you try to fill with the same color that's already there, exit the function
@ -61,7 +61,6 @@ class FillTool extends Tool {
clusterColor[1] == fillColor.g &&
clusterColor[2] == fillColor.b &&
clusterColor[3] != 0) {
console.log("Returned");
return;
}
@ -90,6 +89,7 @@ class FillTool extends Tool {
++y;
reachLeft = false;
reachRight = false;
while (y++ < canvasSize[1] - 1 && matchStartColor(tempImage, pixelPos, clusterColor)) {
colorPixel(tempImage, pixelPos, fillColor);
if (x > 0) {

111
js/tools/MoveSelectionTool.js
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@ -1,14 +1,39 @@
class MoveSelectionTool extends Tool {
constructor (name, options, switchFunc) {
currSelection = undefined;
selectionTool = undefined;
endTool = undefined;
switchFunc = undefined;
constructor (name, options, switchFunc, endTool) {
super(name, options, switchFunc);
this.switchFunc = switchFunc;
this.endTool = endTool;
}
onStart(mousePos) {
super.onStart(mousePos);
if (!this.cursorInSelectedArea(mousePos)) {
this.endSelection();
}
}
onDrag(mousePos) {
super.onDrag(mousePos);
if (this.cursorInSelectedArea(mousePos)) {
this.currSelection = this.selectionTool.moveAnts(mousePos[0]/zoom,
mousePos[1]/zoom, this.currSelection.width, this.currSelection.height);
// clear the entire tmp layer
TMPLayer.context.clearRect(0, 0, TMPLayer.canvas.width, TMPLayer.canvas.height);
// put the image data on the tmp layer with offset
TMPLayer.context.putImageData(
this.currSelection.data,
Math.round(mousePos[0] / zoom) - this.currSelection.width / 2,
Math.round(mousePos[1] / zoom) - this.currSelection.height / 2);
}
}
onEnd(mousePos) {
@ -16,10 +41,90 @@ class MoveSelectionTool extends Tool {
}
onSelect() {
super.onSelect(mousePos);
super.onSelect();
}
onDeselect() {
super.onDeselect(mousePos);
super.onDeselect();
}
setSelectionData(data, tool) {
this.currSelection = data;
this.selectionTool = tool;
this.firstTimeMove = true;
}
onHover(mousePos) {
super.onHover(mousePos);
if (this.cursorInSelectedArea(mousePos)) {
canvasView.style.cursor = 'move';
}
else {
canvasView.style.cursor = 'default';
}
}
cursorInSelectedArea(cursorPos) {
// Getting the coordinates relatively to the canvas
let x = cursorPos[0] / zoom;
let y = cursorPos[1] / zoom;
if (this.currSelection.left <= x && x <= this.currSelection.right) {
if (y <= this.currSelection.bottom && y >= this.currSelection.top) {
return true;
}
return false;
}
return false;
}
endSelection() {
// Clearing the tmp (move preview) and vfx (ants) layers
TMPLayer.context.clearRect(0, 0, TMPLayer.canvas.width, TMPLayer.canvas.height);
VFXLayer.context.clearRect(0, 0, VFXLayer.canvas.width, VFXLayer.canvas.height);
// I have to save the underlying data, so that the transparent pixels in the clipboard
// don't override the coloured pixels in the canvas
let underlyingImageData = currentLayer.context.getImageData(
this.currSelection.left, this.currSelection.top,
this.currSelection.width, this.currSelection.height
);
for (let i=0; i<underlyingImageData.data.length; i+=4) {
let currentMovePixel = [
this.currSelection.data.data[i], this.currSelection.data.data[i+1],
this.currSelection.data.data[i+2], this.currSelection.data.data[i+3]
];
let currentUnderlyingPixel = [
underlyingImageData.data[i], underlyingImageData.data[i+1],
underlyingImageData.data[i+2], underlyingImageData.data[i+3]
];
// If the pixel of the clipboard is empty, but the one below it isn't, I use the pixel below
if (Util.isPixelEmpty(currentMovePixel)) {
if (!Util.isPixelEmpty(underlyingImageData)) {
this.currSelection.data.data[i] = currentUnderlyingPixel[0];
this.currSelection.data.data[i+1] = currentUnderlyingPixel[1];
this.currSelection.data.data[i+2] = currentUnderlyingPixel[2];
this.currSelection.data.data[i+3] = currentUnderlyingPixel[3];
}
}
}
currentLayer.context.putImageData(
this.currSelection.data,
this.currSelection.left,
this.currSelection.top);
this.currSelection = undefined;
currentLayer.updateLayerPreview();
VFXLayer.canvas.style.zIndex = MIN_Z_INDEX;
// Saving history
new HistoryState().EditCanvas();
// Switch to brush
this.switchFunc(this.endTool);
}
}

7
js/tools/RectangleTool.js
View File

@ -20,7 +20,7 @@ class RectangleTool extends ResizableTool {
changeFillType() {
if (this.isSelected)
if (this.currFillMode == 'empty') {
this.currFillMode = 'full';
this.currFillMode = 'fill';
this.emptyRectangleSVG.setAttribute('display', 'none');
this.fullRectangleSVG.setAttribute('display', 'visible');
}
@ -36,8 +36,6 @@ class RectangleTool extends ResizableTool {
onStart(mousePos) {
super.onStart(mousePos);
console.log("Rect start");
// Putting the tmp layer on top of everything
TMPLayer.canvas.style.zIndex = parseInt(currentLayer.canvas.style.zIndex, 10) + 1;
@ -46,8 +44,6 @@ class RectangleTool extends ResizableTool {
}
onDrag(mousePos, cursorTarget) {
super.onDrag(mousePos);
console.log("dragging");
// Drawing the rect at the right position
this.drawRect(Math.floor(mousePos[0] / zoom) + 0.5, Math.floor(mousePos[1] / zoom) + 0.5);
@ -123,7 +119,6 @@ class RectangleTool extends ResizableTool {
* @param {*} y The current end y of the rectangle
*/
drawRect(x, y) {
console.log("here");
// Getting the tmp context
let tmpContext = TMPLayer.context;

74
js/tools/RectangularSelectionTool.js
View File

@ -1,7 +1,13 @@
class RectangularSelectionTool extends SelectionTool {
constructor (name, options, switchFunc) {
switchFunc = undefined;
moveTool = undefined;
currSelection = {};
constructor (name, options, switchFunc, moveTool) {
super(name, options, switchFunc);
this.switchFunc = switchFunc;
this.moveTool = moveTool;
Events.on('click', this.mainButton, switchFunc, this);
}
@ -33,14 +39,14 @@ class RectangularSelectionTool extends SelectionTool {
}
// Drawing the rect
this.drawRect(this.startMousePos[0], this.startMousePos[1]);
this.drawSelection(this.startMousePos[0], this.startMousePos[1]);
}
onDrag(mousePos) {
super.onDrag(mousePos);
// Drawing the rect
this.drawRect(Math.round(mousePos[0] / zoom) + 0.5, Math.round(mousePos[1] / zoom) + 0.5);
this.drawSelection(Math.round(mousePos[0] / zoom) + 0.5, Math.round(mousePos[1] / zoom) + 0.5);
}
onEnd(mousePos) {
@ -62,6 +68,33 @@ class RectangularSelectionTool extends SelectionTool {
this.endMousePos[1] = this.startMousePos[1];
this.startMousePos[1] = tmp;
}
// Switch to the move tool so that the user can move the selection
this.switchFunc(this.moveTool);
// Preparing data for the move tool
let dataWidth = this.endMousePos[0] - this.startMousePos[0];
let dataHeight = this.endMousePos[1] - this.startMousePos[1];
this.currSelection = {
left: this.startMousePos[0], right: this.endMousePos[0],
top: this.startMousePos[1], bottom: this.endMousePos[1],
width: dataWidth,
height: dataHeight,
data: currentLayer.context.getImageData(
this.startMousePos[0], this.startMousePos[1],
dataWidth + 1, dataHeight + 1)
};
// Moving the selection to the TMP layer. It will be moved back to the original
// layer if the user will cancel or end the selection
currentLayer.context.clearRect(this.startMousePos[0] - 0.5, this.startMousePos[1] - 0.5,
dataWidth + 1, dataHeight + 1);
// Moving those pixels from the current layer to the tmp layer
TMPLayer.context.putImageData(this.currSelection.data, this.startMousePos[0], this.startMousePos[1]);
this.moveTool.setSelectionData(this.currSelection, this);
}
onSelect() {
@ -72,7 +105,7 @@ class RectangularSelectionTool extends SelectionTool {
super.onDeselect();
}
drawRect(x, y) {
drawSelection(x, y) {
// Getting the vfx context
let vfxContext = VFXLayer.context;
@ -88,4 +121,37 @@ class RectangularSelectionTool extends SelectionTool {
vfxContext.stroke();
}
/** Moves the rect ants to the specified position
*
* @param {*} x X coordinate of the rect ants
* @param {*} y Y coordinat of the rect ants
* @param {*} width Width of the selection
* @param {*} height Height of the selectione
*
* @return The data regarding the current position and size of the selection
*/
moveAnts(x, y, width, height) {
// Getting the vfx context
let vfxContext = VFXLayer.context;
let ret = this.currSelection;
// Clearing the vfx canvas
vfxContext.clearRect(0, 0, VFXLayer.canvas.width, VFXLayer.canvas.height);
vfxContext.lineWidth = 1;
vfxContext.setLineDash([4]);
// Fixing the coordinates
this.currSelection.left = Math.round(Math.round(x) - 0.5 - Math.round(width / 2)) + 0.5;
this.currSelection.top = Math.round(Math.round(y) - 0.5 - Math.round(height / 2)) + 0.5;
this.currSelection.right = this.currSelection.left + Math.round(width);
this.currSelection.bottom = this.currSelection.top + Math.round(height);
// Drawing the rect
vfxContext.beginPath();
vfxContext.rect(this.currSelection.left, this.currSelection.top, width, height);
vfxContext.stroke();
return ret;
}
}