public override void Initialize()
{
mouseService = ServiceManager.Get<IMouseService>();
buttons[0] = new MouseButton(Game, Input.MouseButton.Left);
buttons[1] = new MouseButton(Game, Input.MouseButton.Right);
buttons[2] = new MouseButton(Game, Input.MouseButton.Middle);
buttons[3] = new MouseButton(Game, Input.MouseButton.SideLeft);
buttons[4] = new MouseButton(Game, Input.MouseButton.SideRight);
buttons[5] = new MouseButton(Game, Input.MouseButton.Middle);//Mousewheel up
buttons[6] = new MouseButton(Game, Input.MouseButton.Middle);//Mousewheel down
/*Remove mouswheel from game component
We'll handle it manually*/
Game.Components.Remove(buttons[5]);
Game.Components.Remove(buttons[6]);
buttons[5].Initialize();
buttons[6].Initialize();
positionContainer = new MousePositionContainer(Game);
positionFollower = new MousePositionTracker(Game);
positionContainer.Color = GetColor();
positionFollower.Color = GetColor();
base.Initialize();
buttons[5].SetSource(new Rectangle(buttons[5].Source.X, buttons[5].Source.Y, buttons[5].Source.Width, 39));
buttons[6].SetSource(new Rectangle(buttons[6].Source.X, buttons[6].Source.Y + 39, buttons[6].Source.Width, buttons[6].Source.Height - 39));
Scale = new Vector2(1.5f, 1.5f);
}
protected override void OnSelectedChanged(ValueChangedEventArgs <bool> e)
{
if (!e.NewValue)
{
MousePositionTracker.Reset(true);
_canRadiusChangeUnratioble = false;
}
RaiseVisualChanged();
base.OnSelectedChanged(e);
}
protected override void OnMouseDown(MouseDownEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
var thisPosition = e.Position;
//若上次点击位置为空,则记录点击位置;
if (MousePositionTracker.LastMouseDownPosition == null)
{
if (thisPosition.IsAlmostEqualTo(Ellipse2D.Center))
{
MousePositionTracker.LastMouseDownPosition = thisPosition;
}
else if (thisPosition.IsAlmostEqualTo(Ellipse2D.GetTopPoint()) ||
thisPosition.IsAlmostEqualTo(Ellipse2D.GetBottomPoint()) ||
thisPosition.IsAlmostEqualTo(Ellipse2D.GetLeftPoint()) ||
thisPosition.IsAlmostEqualTo(Ellipse2D.GetRightPoint()))
{
MousePositionTracker.LastMouseDownPosition = thisPosition;
}
else
{
return;
}
e.Handled = true;
}
//否则将应用更改;
else if (MousePositionTracker.CurrentHoverPosition != null)
{
var newEllipse = GetPreviewEllipse2D();
if (newEllipse != null)
{
Ellipse2D = newEllipse;
}
MousePositionTracker.Reset(true);
e.Handled = true;
}
}
private void InitializeLine()
{
if (!Line.MousePositionTracker.LastMouseDownPosition.IsAlmostEqualTo(Line.Line2D.Start) &&
!Line.MousePositionTracker.LastMouseDownPosition.IsAlmostEqualTo(Line.Line2D.End))
{
throw new InvalidOperationException();
}
MousePositionTracker = new MousePositionTracker(this);
///建立两个<see cref="MousePositionTracker"/>的双向"绑定";
MousePositionTracker.CurrentHoverPositionChanged += MousePositionTrackerForLine_PreviewCurrentHoverPositionChanged;
Line.MousePositionTracker.CurrentHoverPositionChanged += MousePositionTracker_CurrentHoverPositionChanged;
/////设置与上次点击点相对另一端为<see cref="MousePositionTracker"/>的上次鼠标点击位置;
var otherSidePosition = Line.MousePositionTracker.LastMouseDownPosition.IsAlmostEqualTo(Line.Line2D.Start) ? Line.Line2D.End : Line.Line2D.Start;
MousePositionTracker.LastMouseDownPosition = otherSidePosition;
}
