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42 lines
1.1 KiB
Plaintext
42 lines
1.1 KiB
Plaintext
function FigureTranslateCommand(figureId, matrix){
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this.oType = 'FigureTranslateCommand';
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/**Any sequence of many mergeable actions can be packed by the history*/
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this.mergeable = true;
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this.figureId = figureId;
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//compute the translation matrix
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// this.matrix = generateMoveMatrix(STACK.figureGetById(figureId), this.x,this. y);
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this.matrix = matrix;
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//compute the reverse matrix
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this.reverseMatrix = [
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[1, 0, 0],
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[0, 1, 0],
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[0, 0, 1]
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];
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this.reverseMatrix[0][2] = -this.matrix[0][2];
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this.reverseMatrix[1][2] = -this.matrix[1][2];
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}
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FigureTranslateCommand.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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var fig = STACK.figureGetById(this.figureId);
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fig.transform(this.matrix);
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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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var fig = STACK.figureGetById(this.figureId);
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fig.transform(this.reverseMatrix);
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}
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}
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