95 lines
3.5 KiB
JavaScript
95 lines
3.5 KiB
JavaScript
class LassoSelectionTool extends SelectionTool {
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currentPixels = [];
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constructor (name, options, switchFunc, moveTool) {
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super(name, options, switchFunc, moveTool);
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Events.on('click', this.mainButton, switchFunc, this);
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this.resetTutorial();
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this.addTutorialTitle("Lasso selection tool");
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this.addTutorialKey("Q", " to select the lasso selection tool");
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this.addTutorialKey("Left drag", " to select an area");
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this.addTutorialKey("Left drag", " to move a selection");
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this.addTutorialKey("Esc", " to cancel a selection")
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this.addTutorialKey("Click", " outside the selection to cancel it")
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this.addTutorialKey("CTRL+C", " to copy a selection")
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this.addTutorialKey("CTRL+V", " to paste a selection")
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this.addTutorialKey("CTRL+X", " to cut a selection")
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this.addTutorialImg("lassoselect-tutorial.gif");
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}
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onStart(mousePos, mouseTarget) {
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super.onStart(mousePos, mouseTarget);
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if (Util.isChildOfByClass(mouseTarget, "editor-top-menu") ||
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!Util.cursorInCanvas(currFile.canvasSize, [mousePos[0]/currFile.zoom, mousePos[1]/currFile.zoom]))
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return;
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this.currentPixels = [];
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this.drawSelection();
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this.currentPixels.push([mousePos[0] / currFile.zoom, mousePos[1] / currFile.zoom]);
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}
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onDrag(mousePos, mouseTarget) {
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super.onDrag(mousePos, mouseTarget);
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if (!Util.cursorInCanvas(currFile.canvasSize, [mousePos[0]/currFile.zoom, mousePos[1]/currFile.zoom]))
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return;
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if (this.currentPixels[this.currentPixels.length - 1] != mousePos)
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this.currentPixels.push([mousePos[0] / currFile.zoom, mousePos[1] / currFile.zoom]);
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this.drawSelection();
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}
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onEnd(mousePos, mouseTarget) {
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super.onEnd(mousePos, mouseTarget);
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new HistoryState().EditCanvas();
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if (Util.isChildOfByClass(mouseTarget, "editor-top-menu"))
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return;
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this.currentPixels.push([this.startMousePos[0] / currFile.zoom, this.startMousePos[1] / currFile.zoom]);
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// Include extreme borders
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this.boundingBox.maxX++;
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this.boundingBox.maxY++;
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// Switch to the move tool so that the user can move the selection
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this.switchFunc(this.moveTool);
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this.moveTool.setSelectionData(this.getSelection(), this);
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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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drawSelection() {
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if (this.currentPixels.length <= 1)
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return;
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let point = [];
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let prevPoint = [];
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currFile.VFXLayer.context.clearRect(0, 0, currFile.canvasSize[0], currFile.canvasSize[1]);
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currFile.VFXLayer.context.fillStyle = 'rgba(0,0,0,1)';
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for (var index = 0; index < this.currentPixels.length; index ++) {
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point = this.currentPixels[index];
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if (index == 0)
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currFile.VFXLayer.context.moveTo(point[0], point[1]);
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else {
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prevPoint = this.currentPixels[index- 1];
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currFile.VFXLayer.drawLine(Math.floor(prevPoint[0]), Math.floor(prevPoint[1]),
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Math.floor(point[0]), Math.floor(point[1]), 1);
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}
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}
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currFile.VFXLayer.drawLine(Math.floor(point[0]), Math.floor(point[1]),
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Math.floor(this.currentPixels[0][0]), Math.floor(this.currentPixels[0][1]), 1);
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}
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} |