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 BeginFrame(LGuiFrameContext Context, bool IsChild)
{
PushID(LGuiHash.CalculateID(Context.Title));
var ClipRect = FrameContextStack.Count > 0 && IsChild
? LGuiMisc.CombineRect(ref GetCurrentFrame().Rect, ref Context.Rect)
: Context.Rect;
FrameContextStack.Push(Context);
LGuiGraphics.SetClipRect(ClipRect);
}
/// <summary>
/// h = r
/// s = g
/// v = b
/// </summary>
/// <returns></returns>
public static LGuiColor Rgb2Hsv(LGuiColor Rgb)
{
var H = 0.0f;
var S = 0.0f;
var V = 0.0f;
var R = Rgb.R;
var G = Rgb.G;
var B = Rgb.B;
var Max = LGuiMisc.Max(LGuiMisc.Max(R, G), B);
var Min = LGuiMisc.Min(LGuiMisc.Min(R, G), B);
if (Max == Min)
{
H = 0;
}
else if (Max == R)
{
if (G >= B)
{
H = (G - B) / (Max - Min) * 60.0f;
}
else
{
H = (G - B) / (Max - Min) * 60.0f + 360.0f;
}
}
else if (Max == G)
{
H = (B - R) / (Max - Min) * 60.0f + 120.0f;
}
else if (Max == B)
{
H = (R - G) / (Max - Min) * 60.0f + 240.0f;
}
if (Max == 0)
{
S = 0;
}
else
{
S = (Max - Min) / Max;
}
V = Max;
return(new LGuiColor(H / 360.0f, S, V, Rgb.A));
}
internal static int DoMouseWheelEvent(int ID, int Min, int Max, int Value)
{
if (LGuiContext.HoveredID == ID)
{
var MouseWheel = LGuiContext.IO.MouseWheel;
if (MouseWheel < 0)
{
Value = LGuiMisc.Min(Value + (int)(LGuiStyle.GetValue(LGuiStyleValueIndex.ControlSpacingY) * 5), Max);
}
else if (MouseWheel > 0)
{
Value = LGuiMisc.Max(Value - (int)(LGuiStyle.GetValue(LGuiStyleValueIndex.ControlSpacingY) * 5), Min);
}
LGuiContext.IO.MouseWheel = 0;
}
return(Value);
}
public static void PreviousControlFocus()
{
LGuiMisc.PreviousControlFocus();
}
public static bool PreviousControlIsActive()
{
return(LGuiMisc.PreviousControlIsActive());
}
public static bool PreviousControlIsHovered()
{
return(LGuiMisc.PreviousControlIsHovered());
}
public bool IsMouseMove()
{
return(LGuiMisc.Abs((MouseCurDeltaPos.X - MousePreDeltaPos.X) + (MouseCurDeltaPos.Y - MousePreDeltaPos.Y)) > 0);
}
