internal static void Render(LGuiTextRenderInfo Info, LGuiVec2 RenderPos)
{
var FontWidth = Info.Font.FontWidth + Info.Spacing.X;
var FontHeight = Info.Font.FontHeight + Info.Spacing.Y;
var Padding = new LGuiVec2(Info.Spacing.X / 2.0f, Info.Spacing.Y / 2.0f);
var SelectRects = new List <LGuiRect>();
var HasSelect = Info.SelectStart != Info.SelectEnd && !Info.OnlyShowText;
var SelectStart = LGuiMisc.Min(Info.SelectStart, Info.SelectEnd);
var SelectEnd = LGuiMisc.Min((uint)Info.Text.Length, LGuiMisc.Max(Info.SelectStart, Info.SelectEnd));
var InSelect = false;
var BeginPos = RenderPos - new LGuiVec2(Info.OffsetX * FontWidth, Info.OffsetY * FontHeight);
var Pos = BeginPos;
var CursorPos = Pos;
var SelectPos = Pos;
var TextCmdList = LGuiGraphics.CreateCommandList();
var CharX = 0u;
var CharY = 0u;
var Index = 0u;
foreach (var Ch in Info.Text)
{
if (Index == Info.Cursor)
{
CursorPos = Pos;
}
if (HasSelect)
{
if (Index == SelectStart)
{
SelectPos = Pos;
InSelect = true;
}
if (Index == SelectEnd)
{
SelectRects.Add(new LGuiRect(SelectPos, new LGuiVec2(Pos.X - SelectPos.X, FontHeight)));
InSelect = false;
HasSelect = false;
}
if (InSelect && Ch == '\n')
{
SelectRects.Add(new LGuiRect(SelectPos, new LGuiVec2(Pos.X - SelectPos.X + FontWidth, FontHeight)));
SelectPos = new LGuiVec2(BeginPos.X, Pos.Y + FontHeight);
}
}
if (CharX >= Info.OffsetX && CharY >= Info.OffsetY && CharX < (Info.OffsetX + Info.CountX) && CharY < (Info.OffsetY + Info.CountY))
{
TextCmdList.DrawText((Info.IsHidden ? Info.HiddenChar : Ch).ToString(), Pos + Padding, Info.TextColor, Info.Font);
}
if (Ch == '\n')
{
Pos.X = BeginPos.X;
Pos.Y = Pos.Y + FontHeight;
CharX = 0u;
CharY++;
}
else
{
Pos.X = Pos.X + FontWidth;
CharX++;
}
Index++;
}
if (InSelect)
{
if (Info.Text[Info.Text.Length - 1] != '\n')
{
SelectRects.Add(new LGuiRect(SelectPos, new LGuiVec2(Pos.X - SelectPos.X, FontHeight)));
}
}
var ViewRect = new LGuiRect(RenderPos, new LGuiVec2(Info.CountX * FontWidth + 1.0f, Info.CountY * FontHeight));
var SelectResult = LGuiRect.Zero;
foreach (var Rect in SelectRects)
{
if (!LGuiMisc.IntersectRect(Rect, ViewRect, ref SelectResult))
{
continue;
}
LGuiGraphics.DrawRect(SelectResult, Info.SelectColor, true, false);
}
LGuiGraphics.AddCommandList(TextCmdList);
if (!Info.OnlyShowText && ((LGuiContext.FrameCount >> 4) & 1) == 1)
{
if (Info.Cursor == Info.Text.Length)
{
CursorPos = Pos;
}
if (Info.CursorWidth > 0)
{
var CursorRect = new LGuiRect(CursorPos, new LGuiVec2(Info.CursorWidth * FontWidth, FontHeight));
if (LGuiMisc.Overlaps(ref ViewRect, ref CursorRect))
{
LGuiGraphics.DrawRect(CursorRect, Info.CursorColor, true, false);
}
}
else if (LGuiMisc.Contains(ref ViewRect, ref CursorPos))
{
LGuiGraphics.DrawLine(CursorPos, CursorPos + new LGuiVec2(0, FontHeight), Info.CursorColor);
}
}
}