From 1957baebc6fad445dd58d28a04e4feb683005a5b Mon Sep 17 00:00:00 2001
From: Asriel Camora <asriel@camora.dev>
Date: Wed, 14 Jun 2023 11:36:59 -0700
Subject: [PATCH] border window?

---
 Craftimizer/ImGuiUtils.cs | 120 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 Craftimizer/ImGuiUtils.cs

diff --git a/Craftimizer/ImGuiUtils.cs b/Craftimizer/ImGuiUtils.cs
new file mode 100644
index 0000000..1a6a7a8
--- /dev/null
+++ b/Craftimizer/ImGuiUtils.cs
@@ -0,0 +1,120 @@
+using ImGuiNET;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+
+namespace Craftimizer;
+
+internal class ImGuiUtils
+{
+    static List<(Vector2 Min, Vector2 Max)> GroupPanelLabelStack = new();
+
+    static void BeginGroupPanel(string name, Vector2 size)
+    {
+        ImGui.BeginGroup();
+
+        var cursorPos = ImGui.GetCursorScreenPos();
+        var itemSpacing = ImGui.GetStyle().ItemSpacing;
+        ImGui.PushStyleVar(ImGuiStyleVar.FramePadding, new Vector2(0.0f, 0.0f));
+        ImGui.PushStyleVar(ImGuiStyleVar.ItemSpacing, new Vector2(0.0f, 0.0f));
+
+        var frameHeight = ImGui.GetFrameHeight();
+        ImGui.BeginGroup();
+
+        var effectiveSize = size;
+        if (size.X < 0.0f)
+            effectiveSize.X = ImGui.GetContentRegionAvail().X;
+        else
+            effectiveSize.X = size.X;
+        ImGui.Dummy(new Vector2(effectiveSize.X, 0.0f));
+
+        ImGui.Dummy(new Vector2(frameHeight* 0.5f, 0.0f));
+        ImGui.SameLine(0.0f, 0.0f);
+        ImGui.BeginGroup();
+        ImGui.Dummy(new Vector2(frameHeight* 0.5f, 0.0f));
+        ImGui.SameLine(0.0f, 0.0f);
+        ImGui.TextUnformatted(name);
+        var labelMin = ImGui.GetItemRectMin();
+        var labelMax = ImGui.GetItemRectMax();
+        ImGui.SameLine(0.0f, 0.0f);
+        ImGui.Dummy(new Vector2(0f, frameHeight + itemSpacing.Y));
+        ImGui.BeginGroup();
+
+        ImGui.PopStyleVar(2);
+
+        //ImGui.GetCurrentWindow()->ContentRegionRect.Max.x -= frameHeight * 0.5f;
+        //ImGui.GetCurrentWindow()->WorkRect.Max.x          -= frameHeight * 0.5f;
+        //ImGui.GetCurrentWindow()->InnerRect.Max.x         -= frameHeight * 0.5f;
+        //ImGui.GetCurrentWindow()->Size.x                   -= frameHeight;
+
+        var itemWidth = ImGui.CalcItemWidth();
+        ImGui.PushItemWidth(MathF.Max(0.0f, itemWidth - frameHeight));
+
+        GroupPanelLabelStack.Add((labelMin, labelMax));
+    }
+
+    void EndGroupPanel()
+    {
+        ImGui.PopItemWidth();
+
+        var itemSpacing = ImGui.GetStyle().ItemSpacing;
+
+        ImGui.PushStyleVar(ImGuiStyleVar.FramePadding, new Vector2(0.0f, 0.0f));
+        ImGui.PushStyleVar(ImGuiStyleVar.ItemSpacing, new Vector2(0.0f, 0.0f));
+
+        var frameHeight = ImGui.GetFrameHeight();
+
+        ImGui.EndGroup();
+
+        ImGui.EndGroup();
+
+        ImGui.SameLine(0.0f, 0.0f);
+        ImGui.Dummy(new Vector2(frameHeight * 0.5f, 0.0f));
+        ImGui.Dummy(new Vector2(0f, frameHeight - frameHeight * 0.5f - itemSpacing.Y));
+
+        ImGui.EndGroup();
+
+        var itemMin = ImGui.GetItemRectMin();
+        var itemMax = ImGui.GetItemRectMax();
+        var labelRect = GroupPanelLabelStack[^1];
+        GroupPanelLabelStack.RemoveAt(GroupPanelLabelStack.Count - 1);
+
+        var halfFrame = new Vector2(frameHeight * 0.25f, frameHeight) * 0.5f;
+        (Vector2 Min, Vector2 Max) frameRect = (itemMin + halfFrame, itemMax - new Vector2(halfFrame.X, 0.0f));
+        labelRect.Min.X -= itemSpacing.X;
+        labelRect.Max.X += itemSpacing.X;
+        for (var i = 0; i < 4; ++i)
+        {
+            switch (i)
+            {
+                // left half-plane
+                case 0: ImGui.PushClipRect(new Vector2(float.NegativeInfinity), new Vector2(labelRect.Min.X, float.PositiveInfinity), true); break;
+                // right half-plane
+                case 1: ImGui.PushClipRect(new Vector2(labelRect.Max.X, float.NegativeInfinity), new Vector2(float.PositiveInfinity), true); break;
+                // top
+                case 2: ImGui.PushClipRect(new Vector2(labelRect.Min.X, float.NegativeInfinity), new Vector2(labelRect.Max.X, labelRect.Min.Y), true); break;
+                // bottom
+                case 3: ImGui.PushClipRect(new Vector2(labelRect.Min.X, labelRect.Max.Y), new Vector2(labelRect.Max.X, float.PositiveInfinity), true); break;
+            }
+
+            ImGui.GetWindowDrawList().AddRect(
+                frameRect.Min, frameRect.Max,
+                ImGui.GetColorU32(ImGuiCol.Border),
+                halfFrame.X);
+
+            ImGui.PopClipRect();
+        }
+
+        ImGui.PopStyleVar(2);
+
+        //ImGui.GetCurrentWindow()->ContentRegionRect.Max.x += frameHeight * 0.5f;
+        //ImGui.GetCurrentWindow()->WorkRect.Max.x          += frameHeight * 0.5f;
+        //ImGui.GetCurrentWindow()->InnerRect.Max.x         += frameHeight * 0.5f;
+        //ImGui.GetCurrentWindow()->Size.x += frameHeight;
+
+        ImGui.Dummy(new Vector2(0.0f, 0.0f));
+
+        ImGui.EndGroup();
+    }
+}