protected override void InternalDraw(IGraphicsFragment fragment, IGameEngineTime time)
{
var texture = GetStyleStateTexture();
var color = Style.Get <Color>($"{UiStyleKeys.Target.Button}\\{(Enabled ? UiStyleKeys.Color.Enabled : UiStyleKeys.Color.Disabled)}");
var center = Style.Get <Rectangle>($"{UiStyleKeys.Target.Button}\\{UiStyleKeys.Source.Center}");
var font = Style.Get <SpriteFont>($"{UiStyleKeys.Target.Button}\\{UiStyleKeys.Font.Normal}");
var destination = GetRenderDestinationRectangle();
var offset = GetStyleStateOffset();
destination.X += offset.X;
destination.Y += offset.Y;
fragment.DrawSurface(texture, center, destination, color);
if (string.IsNullOrEmpty(Text))
{
return;
}
var position = new Vector2(destination.X, destination.Y) + UiCanvas.ToScreenUnits(ActualSize) * 0.5f - font.MeasureString(Text) * 0.5f;
fragment.DrawSpriteText(position,
Vector2.One,
0.0f,
Vector2.Zero,
font.MeasureString(Text),
Text,
font,
color);
}
/// <summary>
/// Sets up the renderer, canvas, stage and puts in a table filling the whole screen.
/// </summary>
private void SetUp()
{
renderer = new ScreenSpaceRenderer(0, UIRenderLayer);
Entity.Scene.AddRenderer(renderer);
Canvas = new UiCanvas();
Canvas.SetRenderLayer(UIRenderLayer);
Entity.AddComponent(Canvas);
Table = new Table();
Canvas.Stage.AddElement(Table);
Table.SetFillParent(true);
}
void Awake()
{
if (instance == null)
{
instance = this;
}
else if (instance != this)
{
Destroy(gameObject);
}
}
public Vector2 Transform(IControl parent)
{
if (parent is IStaticContainerControl container && container.UseRenderTarget)
{
// If the container is using render targets, we must apply view offset
// to the mouse states position as transformation. This transformation
// must be inverse relative to the parent as the parent control does
// normal transformation.
return(UiCanvas.ToLocalUnits(CurrentLocalPosition.X - container.ViewOffset.X,
CurrentLocalPosition.Y - container.ViewOffset.Y));
}
return(CurrentLocalPosition);
}
protected override void InternalUpdate(IGameEngineTime time, IMouseDevice device)
{
// If no click has happened we don't update focus.
// Focus requires a click to be applied.
if (!device.IsButtonPressed(MouseButton.Left))
{
return;
}
// Defocus keyboards focus if mouse is gaining the focus.
Context.Keyboard?.Defocus();
// Find next focused control.
Focus(Root, new Rectf(UiCanvas.ToLocalUnits(device.GetPosition().ToVector2()), UiCanvas.ToLocalUnits(Vector2.One)));
}
public override void Update(IGameEngineTime time, IMouseDevice device)
{
Pressed = device.GetButtonsPressed();
Down = device.GetButtonsDown();
Released = device.GetButtonsReleased();
Up = device.GetButtonsUp();
base.Update(time, device);
CurrentLocalPosition = UiCanvas.ToLocalUnits(device.GetPosition().ToVector2());
LastLocalPosition = UiCanvas.ToLocalUnits(device.GetPosition(1).ToVector2());
CurrentScrollValue = device.GetScrollWheelValue();
LastScrollValue = device.GetScrollWheelValue(1);
}
private Vector2 GetCollapsedSize()
{
var size = Size;
size.X = ActualSize.X;
var itemSource = Style.Get <Rectangle>($"{UiStyleKeys.Target.ListBox}\\{UiStyleKeys.Source.Text}");
var tuples = GetItemTuples();
var itemAreaTop = tuples.First().Rectangle.Bottom;
var itemAreaBottom = tuples.Last().Rectangle.Bottom;
var itemArea = itemAreaBottom - itemAreaTop - itemSource.Y;
size += UiCanvas.ToLocalUnits(itemArea * Vector2.UnitY);
return(size);
}
public bool IsHovering(Rectf area) => Rectf.Intersects(area, new Rectf(CurrentLocalPosition, UiCanvas.ToLocalUnits(Vector2.One)));
public bool IsHovering(Rectangle area)
=> area.Intersects(new Rectangle(
(int)Math.Floor(UiCanvas.ToHorizontalScreenUnits(CurrentLocalPosition.X)),
(int)Math.Floor(UiCanvas.ToVerticalScreenUnits(CurrentLocalPosition.Y)),
1,
1));
private void OnSceneChange(Scene prevScene, Scene nextScene)
{
foregroundCanvas = null;
backgroundCanvas = null;
}
