public static void Update(VisualElementRenderer renderer)
{
ElementPositions.Clear();
XnaMouseState state;
try
{
if (!Forms.Game.IsActive)
return;
state = XnaMouse.GetState();
}
catch (InvalidOperationException) { return; }
var buttonState = UpdateButtonsState(state);
var reallyOver = renderer.FlattenHierarchyReverse()
.Where(c => !c.Model.InputTransparent && c.Model.IsEnabled)
.Select(c => new ElementPosition { Element = c, Position = state.ToRelative(c) })
.Where(c => c.IsPositionInside());
var newOver = reallyOver.FirstOrDefault();
var newOverEventArgs = newOver.Element != null? new MouseEventArgs(state.ToRelative(newOver.Element)) : null;
if (newOver.Element != null)
{
foreach(var stateChange in buttonStateChange)
{
if (stateChange.Value != null)
{
if (stateChange.Value == XnaButtonState.Pressed)
{
newOver.Element.HandleRaise(
r => new MouseButtonEventArgs(stateChange.Key, state.ToRelative(r)),
(r, e) => r.InterceptMouseDown(e),
(r, e) => r.HandleMouseDown(e));
}
else
newOver.Element.HandleRaise(
r => new MouseButtonEventArgs(stateChange.Key, state.ToRelative(r)),
(r, e) => r.InterceptMouseUp(e),
(r, e) => r.HandleMouseUp(e));
}
}
}
if (_pressing == null)
{
if (newOver.Position != null)
newOver.Element.OnMouseOver(newOverEventArgs);
if (_over != newOver.Element)
{
if (_over != null)
_over.OnMouseLeave(new MouseEventArgs(state.ToRelative(_over)));
if (newOver.Element != null)
newOver.Element.OnMouseEnter(newOverEventArgs);
_over = newOver.Element;
}
if (_over != null && state.LeftButton == XnaButtonState.Pressed)
{
_pressing = _over;
}
}
else
{
var pressingEvent = new MouseEventArgs(state.ToRelative(_pressing));
_pressing.OnMouseOver(pressingEvent);
if (state.LeftButton == XnaButtonState.Released)
{
if (newOver.Element == _pressing)
{
_pressing.RaiseClick(newOverEventArgs);
_pressing = null;
}
else
{
_pressing.OnMouseLeave(pressingEvent);
_pressing = null;
if (newOver.Element != null)
newOver.Element.OnMouseEnter(newOverEventArgs);
_over = newOver.Element;
}
}
}
}
static Microsoft.Xna.Framework.Ray GetPickRay(VisualElementRenderer renderer, float x, float y)
{
var nearsource = new XnaVector3(x, y, 0f);
var farsource = new XnaVector3(x, y, 1f);
var world = XnaMatrix.Identity;
var nearPoint = Forms.Game.GraphicsDevice.Viewport.Unproject(nearsource,
renderer.Effect.Projection, renderer.Effect.View, world);
var farPoint = Forms.Game.GraphicsDevice.Viewport.Unproject(farsource,
renderer.Effect.Projection, renderer.Effect.View, world);
// Create a ray from the near clip plane to the far clip plane.
var direction = farPoint - nearPoint;
direction.Normalize();
return new Microsoft.Xna.Framework.Ray(nearPoint, direction);
}
static XnaVector2? ToRelative(this XnaMouseState state, VisualElementRenderer renderer)
{
foreach (var savedPosition in ElementPositions)
{
if (savedPosition.Element == renderer)
return savedPosition.Position;
}
XnaVector2? position;
var plane = new XnaPlane(new XnaVector3(0, 0, 1), 0);
plane = plane.Transform(renderer.Effect.World);
var ray = GetPickRay(renderer, state.X, state.Y);
var dist = ray.Intersects(plane);
if (dist != null)
{
var clickPosition = XnaVector3.Transform(ray.Position + ray.Direction * dist.Value, XnaMatrix.Invert(renderer.Effect.World));
position = new XnaVector2(clickPosition.X, clickPosition.Y);
}
else position = null;
ElementPositions.Add(new ElementPosition
{
Element = renderer,
Position = position
});
return position;
}
public void RegisterEffect(Effect effect)
{
VisualElementRenderer <VisualElement> .RegisterEffect(effect, View);
}
void IEffectControlProvider.RegisterEffect(Effect effect)
{
VisualElementRenderer <VisualElement> .RegisterEffect(effect, this, NativeView);
}
public CameraViewRenderer(Context context)
: base(context)
{
motionEventHelper = new MotionEventHelper();
visualElementRenderer = new VisualElementRenderer(this);
}
/// <summary>Draws the expander button.</summary>
/// <param name="graphics">The graphics to draw on.</param>
/// <param name="rectangle">The button rectangle.</param>
/// <param name="color">The button color.</param>
/// <param name="state">The expanded toggle.</param>
public static void Draw(Graphics graphics, Rectangle rectangle, Color color, bool state)
{
VisualElementRenderer.RenderTriangle(graphics, rectangle, color, state ? Alignment.Vertical.Up : Alignment.Vertical.Down);
}
protected override void OnPaint(PaintEventArgs e)
{
try
{
if (GetStyle(ControlStyles.AllPaintingInWmPaint))
{
OnPaintBackground(e);
}
MinimumSize = new Size(0, GetPreferredSize(Size.Empty).Height);
Rectangle _clientRectangle = new Rectangle(ClientRectangle.X, ClientRectangle.Y, ClientRectangle.Width - 1, ClientRectangle.Height - 1);
GraphicsPath controlGraphicsPath = VisualBorderRenderer.CreateBorderTypePath(_clientRectangle, _border);
Color backColorState = ColorState.BackColorState(_backColor, Enabled, MouseState);
e.Graphics.SetClip(controlGraphicsPath);
VisualBackgroundRenderer.DrawBackground(e.Graphics, backColorState, BackgroundImage, MouseState, _clientRectangle, _border);
VisualBorderRenderer.DrawBorderStyle(e.Graphics, _border, controlGraphicsPath, _mouseState);
Rectangle arrowRectangle = new Rectangle(Width - _arrowSize.Width - 5, (Height / 2) - (_arrowSize.Height / 2), _arrowSize.Width, _arrowSize.Height);
if (_image != null)
{
e.Graphics.DrawImage(_image, new Rectangle(arrowRectangle.Left - _image.Width - 2, (Height / 2) - (_image.Height / 2), _imageSize.Width, _imageSize.Height));
}
VisualElementRenderer.RenderTriangle(e.Graphics, _arrowColor, _arrowDisabledColor, Enabled, _dropDownImage, arrowRectangle, Alignment.Vertical.Down);
var _check = 0;
Rectangle checkBoxRectangle = new Rectangle(3, (Height / 2) - 6, 12, 12);
if (ShowCheckBox)
{
_check = 15;
if (Checked)
{
CheckBoxRenderer.DrawCheckBox(e.Graphics, checkBoxRectangle.Location, CheckBoxState.CheckedNormal);
}
else
{
CheckBoxRenderer.DrawCheckBox(e.Graphics, checkBoxRectangle.Location, CheckBoxState.UncheckedNormal);
}
}
Size textSize = TextManager.MeasureText(Text, Font);
Rectangle textBoxRectangle = new Rectangle(2 + _check, (Height / 2) - (textSize.Height / 2), textSize.Width, textSize.Height);
TextRenderer.DrawText(e.Graphics, Text, Font, textBoxRectangle, ForeColor, TextFormatFlags.Left | TextFormatFlags.VerticalCenter);
if (_showFocus && _focused)
{
ControlPaint.DrawFocusRectangle(e.Graphics, ClientRectangle);
}
e.Graphics.ResetClip();
}
catch
{
Invalidate();
}
}
public void SetPage(Page newRoot)
{
if (newRoot == Application.MainPage && (_renderer != null || newRoot == null))
return;
if (_renderer != null)
_renderer.Dispose();
if (newRoot == null)
{
Application.MainPage = null;
_renderer = null;
return;
}
Application.MainPage = newRoot;
Application.MainPage.Platform = this;
_renderer = VisualElementRenderer.Create(Application.MainPage);
}
public override ERect GetPlatformContentGeometry()
{
return(VisualElementRenderer?.GetNativeContentGeometry() ?? new ERect());
}
public override void PlatformArrange(Rect frame)
{
base.PlatformArrange(frame);
VisualElementRenderer.UpdateLayout();
}
void IEffectControlProvider.RegisterEffect(Effect effect) => VisualElementRenderer <VisualElement> .RegisterEffect(effect, View);
