mirror of
https://github.com/lospec/pixel-editor.git
synced 2023-08-10 21:12:51 +03:00
105 lines
3.3 KiB
JavaScript
105 lines
3.3 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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constructor (name, options) {
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//stores the name in object, only needed for legacy functions from when currentTool was just a string
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this.name = name;
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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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}
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if (options.imageCursor) this.cursor = "url(\'/pixel-editor/"+options.imageCursor+".png\'), auto";
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this.currentBrushSize = 1;
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this.previousBrushSize = 1;
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if (options.brushPreview) {
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this.brushPreview = true;
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}
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//add to tool object so it can be referenced
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tool[name] = this;
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}
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get brushSize () {
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return this.currentBrushSize;
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}
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set brushSize (value) {
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this.currentBrushSize = value;
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this.updateCursor();
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}
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//switch to this tool (replaced global changeTool())
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switchTo () {
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// Ending any selection in progress
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if (currentTool.name.includes("select") && !this.name.includes("select") && !selectionCanceled) {
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endSelection();
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}
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//set tool and temp tje tje tpp <--- he's speaking the language of the gods, don't delete
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currentTool = this;
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currentToolTemp = this;
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var tools = document.getElementById("tools-menu").children;
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for (var i = 0; i < tools.length; i++) {
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tools[i].classList.remove("selected");
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}
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let buttonNode = document.getElementById(this.name + "-button");
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//give the button of the selected tool the .selected class if the tool has a button
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if(buttonNode != null && buttonNode.parentNode != null) {
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document.getElementById(this.name+"-button").parentNode.classList.add("selected");
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}
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//change cursor
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this.updateCursor();
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}
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updateCursor () {
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//switch to that tools cursor
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canvasView.style.cursor = this.cursor || 'default';
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//if the tool uses a brush preview, make it visible and update the size
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if (this.brushPreview) {
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//console.log('brush size',this.currentBrushSize)
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brushPreview.style.display = 'block';
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brushPreview.style.width = this.currentBrushSize * zoom + 'px';
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brushPreview.style.height = this.currentBrushSize * zoom + 'px';
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}
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//moveSelection
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if (currentTool.name == 'moveselection') {
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if (cursorInSelectedArea()) {
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canMoveSelection = true;
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canvasView.style.cursor = 'move';
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brushPreview.style.display = 'none';
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}
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else {
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canvasView.style.cursor = 'crosshair';
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}
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}
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}
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moveBrushPreview(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.currentBrushSize % 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.currentBrushSize * zoom / 2 - zoom / 2 + toSub * zoom) + 'px';
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brushPreview.style.top = (Math.floor(cursorLocation[1] / zoom) * zoom + currentLayer.canvas.offsetTop - this.currentBrushSize * zoom / 2 - zoom / 2 + toSub * zoom) + 'px';
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}
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}
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/*global dragging currentTool, currentToolTemp, selectionCanceled, endSelection*/ |