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59 lines
1.8 KiB
Plaintext
59 lines
1.8 KiB
Plaintext
11 months ago
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"use strict";
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/*
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Copyright [2014] [Diagramo]
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* Object that is used to undo actions when figures are moved from front to back
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* @this {FigureZOrderCommand}
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* @constructor
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* @param figureId {Number} - {Figure}'s id
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* @param newPosition {Number} index
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*/
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function FigureZOrderCommand(figureId, newPosition){
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this.figureId = figureId;
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this.oType = "FigureZOrderCommand";
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this.oldPosition = STACK.idToIndex[figureId];
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this.newPosition = newPosition;
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}
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FigureZOrderCommand.prototype = {
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/**This method got called every time the Command must execute*/
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execute : function(){
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if(this.oldPosition + 1 == this.newPosition || this.oldPosition - 1 == this.newPosition){
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STACK.swapToPosition(this.figureId, this.newPosition);
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}
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else{
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STACK.setPosition(this.figureId, this.newPosition);
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}
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},
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/**This method should be called every time the Command should be undone*/
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undo : function(){
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if(this.newPosition + 1 == this.oldPosition || this.newPosition - 1 == this.oldPosition){
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STACK.swapToPosition(this.figureId, this.oldPosition);
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}
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else{
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STACK.setPosition(this.figureId, this.oldPosition);
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}
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}
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}
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