142 lines
3.4 KiB
JavaScript
142 lines
3.4 KiB
JavaScript
// REFACTOR: this is a nice base for the Tool class
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//tools container / list, automatically managed when you create a new Tool();
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var tool = {};
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//class for tools
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class Tool {
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name = "AbstractTool";
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isSelected = false;
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// Cursor and brush size
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cursorType = {};
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cursor = undefined;
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cursorHTMLElement = undefined;
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currSize = 1;
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prevSize = 1;
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// Useful coordinates
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startMousePos = {};
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currMousePos = {};
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prevMousePos = {};
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endMousePos = {};
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// HTML elements
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mainButton = undefined;
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biggerButton = undefined;
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smallerButton = undefined;
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constructor (name, options) {
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this.name = name;
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this.cursorType = options;
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this.mainButton = document.getElementById(name + "-button");
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this.biggerButton = document.getElementById(name + "-bigger-button");
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this.smallerButton = document.getElementById(name + "-smaller-button");
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}
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onSelect() {
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this.mainButton.parentElement.classList.add("selected");
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this.isSelected = true;
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/*
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//copy options to this object
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if (options.cursor) {
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//passed statically as a string
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if (typeof options.cursor == 'string') this.cursor = options.cursor;
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//passed a function which should be used as a getter function
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if (typeof options.cursor == 'function') Object.defineProperty(this, 'cursor', { get: options.cursor});
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if (options.imageCursor) this.cursor = "url(\'/pixel-editor/"+options.imageCursor+".png\'), auto";
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if (options.brushPreview) {
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this.brushPreview = true;
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}
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}*/
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}
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updateCursor() {}
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onHover(cursorLocation, cursorTarget) {
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this.prevMousePos = this.currMousePos;
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this.currMousePos = cursorLocation;
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let toSub = 1;
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// Prevents the brush to be put in the middle of pixels
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if (this.currSize % 2 == 0) {
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toSub = 0.5;
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}
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brushPreview.style.left = (Math.floor(cursorLocation[0] / zoom) * zoom + currentLayer.canvas.offsetLeft - this.currSize * zoom / 2 - zoom / 2 + toSub * zoom) + 'px';
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brushPreview.style.top = (Math.floor(cursorLocation[1] / zoom) * zoom + currentLayer.canvas.offsetTop - this.currSize * zoom / 2 - zoom / 2 + toSub * zoom) + 'px';
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switch (this.cursorType.type) {
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case 'html':
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if (cursorTarget == 'drawingCanvas'|| cursorTarget.className == 'drawingCanvas')
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brushPreview.style.visibility = 'visible';
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else
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brushPreview.style.visibility = 'hidden';
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brushPreview.style.display = 'block';
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brushPreview.style.width = this.currSize * zoom + 'px';
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brushPreview.style.height = this.currSize * zoom + 'px';
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break;
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case 'cursor':
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canvasView.style.cursor = this.cursor || 'default';
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break;
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default:
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break;
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}
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}
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onDeselect() {
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this.mainButton.parentElement.classList.remove("selected");
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this.isSelected = false;
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}
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onStart(mousePos) {
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this.startMousePos = mousePos;
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}
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onDrag(mousePos) {
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}
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onEnd(mousePos) {
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this.endMousePos = mousePos;
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}
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increaseSize() {
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if (this.currSize < 128) {
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this.currSize++;
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this.updateCursor();
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}
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}
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decreaseSize() {
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if (this.currSize > 0) {
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this.currSize--;
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this.updateCursor();
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}
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}
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get size() {
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return this.currSize;
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}
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}
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/*global dragging currentTool, currentToolTemp, selectionCanceled, endSelection*/
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/**
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* Class selectionTool extends Tool {
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* imageDataToMove
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* startDataPos
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* currDataPos
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* finalDataPos
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* canMove
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*
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* movePreview()
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*
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* // start and end selection just overwrite the onStart and onEnd methods
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*
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* }
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*
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*/ |