internal static LGuiRect DoLayout(LGuiVec2 Size)
{
var Context = GetCurrentLayoutContext();
var Rect = new LGuiRect(Context.CursorPos, Size);
switch (Context.LayoutMode)
{
case LGuiLayoutMode.None:
break;
case LGuiLayoutMode.Horizontal:
Context.PreviousPos.X = Context.CursorPos.X;
Context.PreviousPos.Y = Context.CursorPos.Y + Size.Y;
Context.CursorPos.X += (Size.X + LGuiStyle.GetValue(LGuiStyleValueIndex.ControlSpacingX));
Context.CursorPos.Y = Context.BeginCursorPos.Y;
Context.ChildSize.X = LGuiMisc.Max(Context.ChildSize.X, Context.CursorPos.X - Context.BeginCursorPos.X);
Context.ChildSize.Y = LGuiMisc.Max(Context.ChildSize.Y, Context.PreviousPos.Y - Context.BeginCursorPos.Y);
break;
case LGuiLayoutMode.Vertical:
Context.PreviousPos.X = Context.CursorPos.X + Size.X;
Context.PreviousPos.Y = Context.CursorPos.Y;
Context.CursorPos.X = Context.BeginCursorPos.X;
Context.CursorPos.Y += (Size.Y + LGuiStyle.GetValue(LGuiStyleValueIndex.ControlSpacingY));
Context.ChildSize.X = LGuiMisc.Max(Context.ChildSize.X, Context.PreviousPos.X - Context.BeginCursorPos.X);
Context.ChildSize.Y = LGuiMisc.Max(Context.ChildSize.Y, Context.CursorPos.Y - Context.BeginCursorPos.Y);
break;
default:
break;
}
return(Rect);
}
internal static void CheckAndSetContextID(ref LGuiRect Rect, int ID, bool OnlyHovered = false)
{
var FrameContext = LGuiContext.GetCurrentFrame();
if (!Contains(ref FrameContext.Rect, ref LGuiContext.IO.MousePos))
{
return;
}
if (!LGuiWindow.CurrentWindowCanHandleMouseMsg(true))
{
return;
}
if (Contains(ref Rect, ref LGuiContext.IO.MousePos))
{
LGuiContext.HoveredID = ID;
if (LGuiContext.ActiveID == 0 && LGuiContext.IO.IsMouseDown(LGuiMouseButtons.Left) && !OnlyHovered)
{
LGuiContext.ActiveID = ID;
LGuiContext.ActiveRect = Rect;
}
}
}
internal static bool Contains(ref LGuiRect Rect, ref LGuiVec2 Value)
{
if (Value.X < Rect.Left || Value.X > Rect.Right || Value.Y < Rect.Top || Value.Y > Rect.Bottom)
{
return(false);
}
return(true);
}
internal static bool Overlaps(ref LGuiRect Left, ref LGuiRect Right)
{
if (Left.Left >= Right.Right || Left.Right <= Right.Left || Left.Top >= Right.Bottom || Left.Bottom <= Right.Top)
{
return(false);
}
return(true);
}
internal LGuiWindowContext(string Title, int ID, int Order, LGuiRect Rect, bool Moveable, bool Focusable)
{
this.Title = Title;
this.ID = ID;
this.Order = Order;
this.Rect = Rect;
this.Moveable = Moveable;
this.Focusable = Focusable;
}
internal LGuiFrameContext(string Title, LGuiRect Rect)
{
this.Title = Title;
this.Rect = Rect;
this.Size = Rect.Size;
this.Visibled = true;
this.GroupStack = new Stack <LGuiGroupContext>();
}
internal static LGuiRect CombineRect(ref LGuiRect Parent, ref LGuiRect Child)
{
var Result = LGuiRect.Zero;
if (!IntersectRect(Parent, Child, ref Result))
{
return(Parent);
}
return(Result);
}
internal static bool CheckVisible(ref LGuiRect Rect)
{
var FrameContext = LGuiContext.GetCurrentFrame();
if (!FrameContext.Visibled)
{
return(false);
}
return(Overlaps(ref FrameContext.Rect, ref Rect));
}
internal static bool IntersectRect(LGuiRect Left, LGuiRect Right, ref LGuiRect Result)
{
if (!Overlaps(ref Left, ref Right))
{
return(false);
}
Result = LGuiRect.CreateWithBoundary(
Max(Left.Left, Right.Left),
Max(Left.Top, Right.Top),
Min(Left.Right, Right.Right),
Min(Left.Bottom, Right.Bottom));
return(true);
}
internal static void Clear()
{
LGuiContextCache.Clear();
IO.Clear();
Font = LGuiFont.Default;
FocusID = 0;
ActiveID = 0;
HoveredID = 0;
FrameCount = 0;
PreviousControlID = 0;
ActiveRect = LGuiRect.Zero;
}
public static void BeginFrame(string Title, LGuiRect Rect)
{
LGuiFrame.Begin(Title, Rect);
}
public static void Texture(string FilePath, LGuiRect SrcRect, LGuiVec2 DstSize)
{
LGuiTexture.OnProcess(FilePath, SrcRect, DstSize);
}
public static void Texture(int TextureID, LGuiRect SrcRect, LGuiVec2 DstSize)
{
LGuiTexture.OnProcess(TextureID, SrcRect, DstSize);
}
public static bool BeginWindow(string Title, LGuiRect Rect, LGuiWindowFlags Flags = LGuiWindowFlags.None)
{
return(LGuiWindow.BeginWindow(Title, Rect, Flags));
}
