TreeNodeEx() wired the display-side ImGuiTreeNodeFlags_Selected flag (#581)

imgui.cpp

@@ -5712,7 +5712,7 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
     else
     {
         // Unframed typed for tree nodes
-        if (hovered)
+        if (hovered || (flags & ImGuiTreeNodeFlags_Selected))
             RenderFrame(bb.Min, bb.Max, col, false);
 
         RenderCollapseTriangle(bb.Min + ImVec2(padding.x, g.FontSize*0.15f + text_base_offset_y), opened, 0.70f, false);

imgui.h

@@ -518,7 +518,7 @@ enum ImGuiInputTextFlags_
 // Flags for ImGui::TreeNode*(), ImGui::CollapsingHeader*()
 enum ImGuiTreeNodeFlags_
 {
-    ImGuiTreeNodeFlags_Selected             = 1 << 0,   // FIXME: TODO
+    ImGuiTreeNodeFlags_Selected             = 1 << 0,   // Draw as selected
     ImGuiTreeNodeFlags_Framed               = 1 << 1,   // Full colored frame (e.g. for CollapsingHeader)
     ImGuiTreeNodeFlags_AllowOverlapMode     = 1 << 2,   // Hit testing to allow subsequent widgets to overlap this one
     ImGuiTreeNodeFlags_NoTreePushOnOpen     = 1 << 3,   // Don't do a TreePush() when opened (e.g. for CollapsingHeader) = no extra indent nor pushing on ID stack