53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
class EraserTool extends ResizableTool {
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constructor(name, options, switchFunction) {
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super(name, options);
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Events.on('click', this.mainButton, switchFunction, this);
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Events.on('click', this.biggerButton, this.increaseSize.bind(this));
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Events.on('click', this.smallerButton, this.decreaseSize.bind(this));
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this.resetTutorial();
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this.addTutorialTitle("Eraser tool");
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this.addTutorialKey("E", " to select the eraser");
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this.addTutorialKey("Left drag", " to erase an area");
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this.addTutorialKey("Right drag", " to resize the eraser");
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this.addTutorialKey("+ or -", " to resize the eraser");
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this.addTutorialImg("eraser-tutorial.gif");
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}
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onStart(mousePos) {
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super.onStart(mousePos);
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new HistoryState().EditCanvas();
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}
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onDrag(mousePos, cursorTarget) {
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super.onDrag(mousePos);
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if (cursorTarget === undefined)
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return;
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//draw line to current pixel
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if (cursorTarget.className == 'drawingCanvas' || cursorTarget.className == 'drawingCanvas') {
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currFile.currentLayer.drawLine(Math.floor(this.prevMousePos[0]/currFile.zoom),
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Math.floor(this.prevMousePos[1]/currFile.zoom),
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Math.floor(this.currMousePos[0]/currFile.zoom),
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Math.floor(this.currMousePos[1]/currFile.zoom),
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this.currSize, true
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);
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}
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currFile.currentLayer.updateLayerPreview();
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}
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onEnd(mousePos) {
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super.onEnd(mousePos);
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this.endMousePos = mousePos;
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}
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onSelect() {
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super.onSelect();
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}
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onDeselect() {
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super.onDeselect();
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}
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} |