internal static void UpdateDrawLocation(this UIControl control)
{
if (control.SuspendLayout)
{
return;
}
_UpdateDrawLocation(control);
if (control is UIContainer)
{
UIContainer container = control as UIContainer;
foreach (UIControl child in container.Controls)
{
UpdateDrawLocation(child);
}
}
if (control.HasDecorations)
{
control.Decorations.ForEach(c => UpdateDrawLocation(c));
}
}
/// <summary>
/// Adds a UI constraint to this control.
/// </summary>
/// <param name="control">Control instance.</param>
/// <param name="controlEdge">Control edge to constraint.</param>
/// <param name="anchor">Anchoring control on which the control edge is constrained. If 'null', the control is anchored relative to the viewport.</param>
/// <param name="anchorEdge">Anchor edge on which the control edge is constrained relative to.</param>
/// <param name="edgeDistance">Distance between control and anchor constraint edges.</param>
/// <param name="category">The category this constraint belongs to.</param>
public static void AddConstraint(this UIControl control, Edge controlEdge, UIControl anchor, Edge anchorEdge, float edgeDistance = 0, ConstraintCategory category = ConstraintCategory.All)
{
if (control == anchor)
{
throw new ArgumentException("Cannot anchor control to itself.");
}
//// Separate edges into their basic flags.
//// E.g. 'Edge.BottomRight' is separated into 'Edge.Bottom' and 'Edge.Right', and added as individual edges.
//List<Edge> controlEdges = new List<Edge>(4);
//List<Edge> anchorEdges = new List<Edge>(4);
//foreach (Edge edgeType in UIConstrainer.EdgeTypes)
//{
// if (controlEdge.ContainsFlag(edgeType))
// {
// controlEdges.Add(edgeType);
// }
// if (anchorEdge.ContainsFlag(edgeType))
// {
// anchorEdges.Add(edgeType);
// }
//}
//if (controlEdges.Count != anchorEdges.Count)
//{
// throw new ArgumentException("There must be an equal amount of control and anchor edges.");
//}
if (control.Constrainer == null)
{
control.Constrainer = new UIConstrainer();
}
control.Constrainer.AddConstraint(controlEdge, anchor, anchorEdge, edgeDistance, category);
//for (int i = 0; i < controlEdges.Count; i++)
//{
// control.Constrainer.AddConstraint(controlEdges[i], anchor, anchorEdges[i], edgeDistance, category);
//}
}
/// <summary>
/// Adds a UI constraint to this control.
/// </summary>
/// <param name="control">Control instance.</param>
/// <param name="controlEdge">Control edge to constraint.</param>
/// <param name="anchor">Anchoring control on which the control edge is constrained. If 'null', the control is anchored relative to the viewport.</param>
/// <param name="anchorEdge">Anchor edge on which the control edge is constrained relative to.</param>
/// <param name="edgeDistance">Distance between control and anchor constraint edges.</param>
/// <param name="category">The category this constaint belongs to.</param>
public static void AddConstraint(this UIControl control, Edge controlEdge, UIControl anchor, Edge anchorEdge, float edgeDistance = 0, ConstraintCategory category = ConstraintCategory.All)
{
if (control == anchor)
{
throw new ArgumentException("Cannot anchor control to itself.");
}
List <Edge> controlEdges = new List <Edge>(4);
List <Edge> anchorEdges = new List <Edge>(4);
foreach (Edge edgeType in UIConstrainer.EdgeTypes)
{
if (controlEdge.ContainsFlag(edgeType))
{
controlEdges.Add(edgeType);
}
if (anchorEdge.ContainsFlag(edgeType))
{
anchorEdges.Add(edgeType);
}
}
if (controlEdges.Count != anchorEdges.Count)
{
throw new ArgumentException("There must be an equal amount of control and anchor edges.");
}
if (control.Constrainer == null)
{
control.Constrainer = new UIConstrainer();
}
for (int i = 0; i < controlEdges.Count; i++)
{
control.Constrainer.AddConstraint(controlEdges[i], anchor, anchorEdges[i], edgeDistance, category);
}
}
internal void AssignParent(UIControl control)
{
CheckInitialize();
parent = control;
HasParent = control != null;
}
protected virtual bool HandlePointerEvents()
{
if (heldControl != null && heldControl != this)
{
return(false);
}
bool pointerHandled = false;
if (pointedControl == this)
{
pointerHandled = true;
if (IntersectsPointer())
{
if (CheckEvent(onInputHover, MouseButton.None))
{
}
}
else
{
//Console.WriteLine("Left 1: " + ToString());
CheckEvent(onInputLeave, MouseButton.None);
pointedControl = null;
}
}
else
{
if (IntersectsPointer())
{
if (pointedControl != null && pointedControl != this)
{
//Console.WriteLine("Left 2: " + pointedControl.ToString());
pointedControl.CheckEvent(pointedControl.onInputLeave, MouseButton.None);
pointedControl = null;
}
//Console.WriteLine("Entered: " + ToString());
CheckEvent(onInputEnter, MouseButton.None);
UIControl.pointedControl = this;
pointerHandled = true;
}
}
if (PointerDown)
{
if (InputManager.AnyMousePressed && CheckEvent(onInputPressed, InputManager.MousePressed))
{
//Console.WriteLine("Pressed: " + ToString());
pointerHandled = true;
heldControl = this;
}
if (InputManager.AnyMouseDown)
{
bool inputMoveInitiated = false;
if (InputManager.MouseMoved)
{
inputMoveInitiated = CheckEvent(onInputMoved, InputManager.MouseDown);
//Console.WriteLine( ToString() + ": Moved " + mouseMoveInitiated );
}
if (CheckEvent(onInputHeld, InputManager.MouseDown))
{
//Console.WriteLine("Pointer held: " + ToString());
pointerHandled = true;
heldControl = this;
}
pointerHandled = AbsorbPointer || inputMoveInitiated;
}
if (InputManager.AnyMouseReleased && IntersectsPointer() && CheckEvent(onInputReleased, InputManager.MouseReleased))
{
//Console.WriteLine("Release: " + ToString());
pointerHandled = true;
heldControl = null;
}
if (!InputManager.AnyMouseDown)
{
//Console.WriteLine("Pointer Up: " + ToString());
PointerDown = false;
if (CheckEvent(onInputReleasedAnywhere, InputManager.MouseReleased))
{
pointerHandled = true;
}
if (heldControl != null)
{
heldControl = null;
pointerHandled = true;
}
}
}
return(pointerHandled);
}
internal static void EnforceConstraints(this UIControl control, ConstraintCategory category = ConstraintCategory.All)
{
if (control.SuspendLayout)
{
return;
}
UIManager.layoutProfiler.Start();
UIConstrainer constrainer = control.Constrainer;
if (constrainer != null)
{
foreach (UIConstraint constraint in constrainer.Constraints)
{
// Check whether the constaint should be enforced.
if (category != ConstraintCategory.All && !category.ContainsFlag(constraint.Category))
{
continue;
}
Edge controlEdge = constraint.ControlEdge;
UIControl anchor = constraint.Anchor;
float distance = constraint.Distance;
Vector2 pos = Vector2.Zero;
Vector2 anchorSize = Engine.ScreenSize;
if (anchor != null)
{
anchorSize = anchor.Size * anchor.scale;
if (anchor.Parent == control.Parent) // Is anchor and control children of the same parent?
{
pos = anchor.location; // ..then set control position relative to the anchor.
}
Vector2 scaleDelta = anchor.ScaledSize - anchor.Size;
pos -= anchor.NormalizedOrigin * scaleDelta;
}
Vector2 halfAnchorSize = anchorSize * 0.5f;
switch (constraint.AnchorEdge)
{
case Edge.Left:
pos.X += distance;
break;
case Edge.Top:
pos.Y += distance;
break;
case Edge.Right:
pos.X += anchorSize.X - distance;
break;
case Edge.Bottom:
pos.Y += anchorSize.Y - distance;
break;
case Edge.CenterX:
pos.X += halfAnchorSize.X + distance;
break;
case Edge.CenterY:
pos.Y += halfAnchorSize.Y + distance;
break;
}
if (!constrainer.ControlAnchoredOpposite(controlEdge))
{
switch (controlEdge)
{
case Edge.Left:
control.location.X = pos.X;
break;
case Edge.Top:
control.location.Y = pos.Y;
break;
case Edge.Right:
control.location.X = pos.X - control.Width;
break;
case Edge.Bottom:
control.location.Y = pos.Y - control.Height;
break;
case Edge.CenterX:
control.location.X = pos.X - control.HalfWidth;
break;
case Edge.CenterY:
control.location.Y = pos.Y - control.HalfHeight;
break;
}
}
else
{
switch (controlEdge)
{
case Edge.Left:
case Edge.CenterX:
control.size.X += control.location.X - pos.X;
control.location.X = pos.X;
break;
case Edge.Top:
case Edge.CenterY:
control.size.Y += control.location.Y - pos.Y;
control.location.Y = pos.Y;
break;
case Edge.Right:
control.size.X += (pos.X - control.Width) - control.location.X;
//control.location.X += pos.X - control.size.X;
break;
case Edge.Bottom:
control.size.Y += (pos.Y - control.Height) - control.location.Y;
//control.location.Y += pos.Y - control.size.Y;
break;
}
}
}
}
_UpdateDrawLocation(control);
UIManager.layoutProfiler.Stop();
}
/// <summary>
/// Adds a UI constraint to this control.
/// </summary>
/// <param name="control">Control instance.</param>
/// <param name="controlEdge">Control edge to constraint.</param>
/// <param name="anchor">Anchoring control on which the control edge is constrained. If 'null', the control is anchored relative to the viewport.</param>
/// <param name="anchorEdge">Anchor edge on which the control edge is constrained relative to.</param>
/// <param name="category">The category this constaint belongs to.</param>
public static void AddConstraint(this UIControl control, Edge controlEdge, UIControl anchor, Edge anchorEdge, ConstraintCategory category)
{
control.AddConstraint(controlEdge, anchor, anchorEdge, 0f, category);
}
protected virtual bool HandlePointerEvents()
{
if (heldControl != null && heldControl != this)
{
return(false);
}
bool pointerHandled = false;
if (pointedControl == this)
{
pointerHandled = true;
if (IntersectsPointer())
{
CheckEvent(onInputHover);
}
else
{
//Console.WriteLine("Leave 1: " + ToString());
CheckEvent(onInputLeave);
pointedControl = null;
}
}
else
{
if (AbsorbPointer && IntersectsPointer())
{
if (pointedControl != null && pointedControl != this)
{
//Console.WriteLine("Leave 2: " + pointedControl.ToString());
pointedControl.CheckEvent(pointedControl.onInputLeave);
pointedControl = null;
}
// TODO: Enable fall-through logic for onInputEnter
//Console.WriteLine("Entered: " + ToString());
CheckEvent(onInputEnter);
pointedControl = this;
pointerHandled = true;
}
}
//Console.WriteLine("Pointer AbsorbPointer: " + ToString() + " " + AbsorbPointer);
if (PointerDown)
{
if (InputManager.AnyMousePressed && CheckEvent(onInputPressed, InputManager.MousePressed))
{
//Console.WriteLine("Pressed: " + ToString());
pointerHandled = true;
heldControl = this;
}
if (InputManager.AnyMouseHeld)
{
//Console.WriteLine(ToString() + ": AnyMouseHeld");
bool inputMoveInitiated = false;
if (InputManager.MouseMoved)
{
inputMoveInitiated = CheckEvent(onInputMoved, InputManager.MouseHeld);
//Console.WriteLine( ToString() + ": Moved " + mouseMoveInitiated );
if (inputMoveInitiated)
{
heldControl = this; // TODO: This has not been tested properly
}
}
if (CheckEvent(onInputHeld, InputManager.MouseHeld))
{
//Console.WriteLine("Pointer held: " + ToString());
pointerHandled = true;
heldControl = this;
}
pointerHandled = AbsorbPointer || inputMoveInitiated;
}
if (InputManager.AnyMouseReleased && IntersectsPointer() && CheckEvent(onInputReleased, InputManager.MouseReleased))
{
//Console.WriteLine("Release: " + ToString());
pointerHandled = true;
heldControl = null;
}
if (!InputManager.AnyMouseHeld)
{
//Console.WriteLine("Pointer Up: " + ToString());
PointerDown = false;
pointerHandled = true;
if (CheckEvent(onInputReleasedAnywhere, InputManager.MouseReleased))
{
pointerHandled = true;
}
if (heldControl != null)
{
heldControl = null;
pointerHandled = true;
}
}
}
return(pointerHandled);
}
/// <summary>
/// Overload added to prevent implicit casting to ConstraintCategory when edgeDistance is set to 0.
/// http://geekswithblogs.net/BlackRabbitCoder/archive/2012/01/26/c.net-little-pitfalls-implicit-zero-to-enum-conversion.aspx
/// </summary>
public static void AddConstraint(this UIControl control, Edge controlEdge, UIControl anchor, Edge anchorEdge, int edgeDistance)
{
control.AddConstraint(controlEdge, anchor, anchorEdge, edgeDistance, ConstraintCategory.All);
}
private static void EnforceConstraints(this UIControl control, UIConstrainer constrainer, ConstraintCategory category = ConstraintCategory.All)
{
if (constrainer != null)
{
foreach (UIConstraint constraint in constrainer.Constraints)
{
// Check whether the constraint should be enforced.
if (category != ConstraintCategory.All && !category.ContainsFlag(constraint.Category))
{
continue;
}
Edge controlEdge = constraint.ControlEdge;
UIControl anchor = constraint.Anchor;
float distance = constraint.Distance;
bool anchorVisible = true;
Vector2 pos = Vector2.Zero;
Vector2 anchorSize = Engine.ScreenSize;
if (anchor != null)
{
anchorVisible = anchor.Visible;
anchorSize = anchorVisible ? (anchor.Size * anchor.scale).Max(anchor.MinimumSize * anchor.scale) : Vector2.Zero;
if (anchor.Parent == control.Parent) // Is anchor and control children of the same parent?
{
pos = anchor.position; // ..then set control position relative to the anchor.
}
Vector2 scaleDelta = anchor.ScaledSize - anchor.Size;
pos -= anchor.NormalizedOrigin * scaleDelta;
}
Vector2 halfAnchorSize = anchorSize * 0.5f;
switch (constraint.AnchorEdge)
{
case Edge.Left:
pos.X += distance;
break;
case Edge.Top:
pos.Y += distance;
break;
case Edge.Right:
pos.X += anchorSize.X - distance;
break;
case Edge.Bottom:
pos.Y += anchorSize.Y - distance;
break;
case Edge.CenterX:
pos.X += halfAnchorSize.X + distance;
break;
case Edge.CenterY:
pos.Y += halfAnchorSize.Y + distance;
break;
}
if (!constrainer.AnchoredOpposite(controlEdge))
{
switch (controlEdge)
{
case Edge.Left:
control.position.X = pos.X;
break;
case Edge.Top:
control.position.Y = pos.Y;
break;
case Edge.Right:
control.position.X = pos.X - Math.Max(control.Width, control.MinimumSize.X);
break;
case Edge.Bottom:
control.position.Y = pos.Y - Math.Max(control.Height, control.MinimumSize.Y);
break;
case Edge.CenterX:
control.position.X = pos.X - Math.Max(control.HalfWidth, control.MinimumSize.X * 0.5f);
break;
case Edge.CenterY:
control.position.Y = pos.Y - Math.Max(control.HalfHeight, control.MinimumSize.Y * 0.5f);
break;
}
}
else
{
switch (controlEdge)
{
case Edge.Left:
case Edge.CenterX:
control.size.X += control.position.X - pos.X;
control.position.X = pos.X;
break;
case Edge.Top:
case Edge.CenterY:
control.size.Y += control.position.Y - pos.Y;
control.position.Y = pos.Y;
break;
case Edge.Right:
control.size.X += (pos.X - control.Width) - control.position.X;
if (!anchorVisible)
{
control.size.X += anchor.size.X; // TODO: Needs proper testing
}
//control.location.X += pos.X - control.size.X;
break;
case Edge.Bottom:
control.size.Y += (pos.Y - control.Height) - control.position.Y;
if (!anchorVisible)
{
control.size.Y += anchor.size.Y; // TODO: Needs proper testing
}
//control.location.Y += pos.Y - control.size.Y;
break;
}
control.UpdateTransformation = true; // Control transformation needs a recalculation when its size is updated.
}
}
}
if (control.MinimumSize != Vector2.Zero)
{
control.size = control.size.Max(control.MinimumSize);
control.UpdateTransformation = true;
}
_UpdateDrawPosition(control);
}
public UIScrollBar(ScrollBarOrientation orientation = ScrollBarOrientation.Vertical)
{
Orientation = orientation;
string arrowResource = string.Empty;
Vector2 sliderSize = Vector2.Zero;
switch (orientation)
{
case ScrollBarOrientation.Vertical:
sliderSize = new Vector2(0, 20);
arrowResource = "graphics/arrow_down";
break;
case ScrollBarOrientation.Horizontal:
sliderSize = new Vector2(20, 0);
arrowResource = "graphics/arrow_left";
break;
}
AutoSize = false;
scrollStep = 0.02f;
Color = new Color(240, 240, 240);
Alpha = 1f;
DrawBounds = true;
sliderBackground = new UIPanel();
sliderBackground.Color = new Color(240, 240, 240);
sliderBackground.Alpha = 1f;
sliderBackground.InputMoved += sliderBackground_MouseMoved;
sliderBackground.InputPressed += sliderBackground_MousePressed;
slider = new UIPanel();
slider.Color = new Color(205, 205, 205);
slider.Alpha = 1f;
slider.AutoSize = false;
slider.AbsorbPointer = false;
slider.Size = sliderSize;
//slider.InputDown += sliderBackground_MousePressed;
arrowA = new UIButton();
var arrowAImg = new UIImage(arrowResource);
arrowAImg.Color = new Color(96, 96, 96);
arrowAImg.AddConstraint(Edge.Dock, arrowA, Edge.Dock);
arrowA.Tag = "bla";
arrowA.AddDecoration(arrowAImg);
arrowA.PointedColor = new Color(190, 190, 190);
arrowA.PressedColor = new Color(120, 120, 120);
arrowA.HighlightZoom = false;
arrowA.InputDown += arrowA_MouseHeld;
arrowB = new UIButton();
var arrowBImg = new UIImage(arrowResource);
arrowBImg.Color = new Color(96, 96, 96);
arrowBImg.AddConstraint(Edge.Dock, arrowB, Edge.Dock);
arrowB.AddDecoration(arrowBImg);
arrowB.PointedColor = new Color(190, 190, 190);
arrowB.PressedColor = new Color(120, 120, 120);
arrowB.HighlightZoom = false;
arrowB.InputDown += arrowB_MouseHeld;
switch (orientation)
{
case ScrollBarOrientation.Vertical:
arrowAImg.SpriteEffect = SpriteEffects.FlipVertically;
arrowA.AddConstraint(Edge.Horizontal | Edge.Top, this, Edge.Horizontal | Edge.Top);
arrowB.AddConstraint(Edge.Horizontal, this, Edge.Horizontal);
arrowB.AddConstraint(Edge.Bottom, this, Edge.Bottom);
sliderBackground.AddConstraint(Edge.Horizontal, this, Edge.Horizontal);
sliderBackground.AddConstraint(Edge.Top, arrowA, Edge.Bottom);
sliderBackground.AddConstraint(Edge.Bottom, arrowB, Edge.Top);
slider.AddConstraint(Edge.Top, sliderBackground, Edge.Top, ConstraintCategory.Initialization);
slider.AddConstraint(Edge.Horizontal, sliderBackground, Edge.Horizontal);
break;
case ScrollBarOrientation.Horizontal:
arrowBImg.SpriteEffect = SpriteEffects.FlipHorizontally;
arrowA.AddConstraint(Edge.Vertical | Edge.Left, this, Edge.Vertical | Edge.Left);
arrowB.AddConstraint(Edge.Vertical, this, Edge.Vertical);
arrowB.AddConstraint(Edge.Right, this, Edge.Right);
sliderBackground.AddConstraint(Edge.Vertical, this, Edge.Vertical);
sliderBackground.AddConstraint(Edge.Left, arrowA, Edge.Right);
sliderBackground.AddConstraint(Edge.Right, arrowB, Edge.Left);
slider.AddConstraint(Edge.Left, sliderBackground, Edge.Left, ConstraintCategory.Initialization);
slider.AddConstraint(Edge.Vertical, sliderBackground, Edge.Vertical);
break;
}
AbsorbPointer = false;
//base.AbsorbPointer = true;
//slider.AbsorbPointer = true;
//arrowDown.AbsorbPointer = true;
//arrowUp.AbsorbPointer = true;
sliderBackground.AbsorbPointer = true;
AddChild(arrowA);
AddChild(arrowB);
AddChild(sliderBackground);
AddChild(slider);
}