private void keyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.ControlKey)
{
this.isCtrlPressed = true;
}
if (e.KeyCode == Keys.G)
{
if (this.isCtrlPressed)
{
if (selectedObject.getObjectList().Count() == 1 && selectedObject.getObjectList()[0] is Group)
{
this.ungroupSelectedObject((Group)selectedObject.getObjectList()[0]);
}
else
{
this.groupSelectedObject();
}
}
}
if (e.KeyCode == Keys.Z)
{
if (this.isCtrlPressed)
{
if (undoStack.Count != 0)
{
IMemento memento = undoStack.Pop();
foreach (DrawingObject drawingObject in memento.getCurrent())
{
drawingObjectList.Remove(drawingObject);
}
foreach (DrawingObject drawingObject in memento.getPrevious())
{
if (drawingObject != null)
{
drawingObjectList.Add(drawingObject);
}
}
redoStack.Push(new Memento(memento.getPrevious(), memento.getCurrent()));
this.drawCanvas();
}
}
}
if (e.KeyCode == Keys.Y)
{
if (this.isCtrlPressed)
{
if (redoStack.Count != 0)
{
IMemento memento = redoStack.Pop();
foreach (DrawingObject drawingObject in memento.getCurrent())
{
if (drawingObject != null)
{
drawingObjectList.Remove(drawingObject);
}
}
foreach (DrawingObject drawingObject in memento.getPrevious())
{
drawingObjectList.Add(drawingObject);
}
undoStack.Push(new Memento(memento.getPrevious(), memento.getCurrent()));
this.drawCanvas();
}
}
}
if (e.KeyCode == Keys.R)
{
if (this.isCtrlPressed)
{
if (selectedObject.getState() is EditState || selectedObject.getState() is RotateState)
{
selectedObject.select();
this.drawCanvas();
}
}
}
}
