commit f88bf9cea35a3ac3b93c51526f03a058c822a991
author omar <omarcornut@gmail.com> Mon Jul 30 18:48:10 2018 +0200
committer omar <omarcornut@gmail.com> Mon Jul 30 18:48:10 2018 +0200
tree 7e6dedf926a63db94596afedaf43b87efd53b661
parent 067edd09f980549f4ba3c9c402efb2561f460893

InvisibleButton: Added an assert to catch common type of passing zero-sized dimensions. (#1983)

imgui.cpp

diff --git a/imgui.cpp b/imgui.cpp
index d7db96b..594d5fe 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -8332,6 +8332,9 @@
     if (window->SkipItems)
         return false;
 
+    // Cannot use zero-size for InvisibleButton(). Unlike Button() there is not way to fallback using the label size.
+    IM_ASSERT(size_arg.x != 0.0f && size_arg.y != 0.0f);
+
     const ImGuiID id = window->GetID(str_id);
     ImVec2 size = CalcItemSize(size_arg, 0.0f, 0.0f);
     const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);