fix: 🐛 wxWidgets text ellipsis

tests/apps/Makefile.wasm

@@ -186,6 +186,7 @@ all: minimal_test.html \
      $(S)/coroutine-pthread/nested_repro_ex.html \
      $(S)/coroutine-pthread/vcall_repro.html \
      $(S)/textctrl-reentry/textctrl-reentry_test.html \
+     $(S)/stattext-ellipsize/stattext-ellipsize_test.html \
      $(S)/tooltip-lifetime/tooltip-lifetime_test.html \
      $(S)/warp-pointer/warp-pointer_test.html
 
@@ -208,6 +209,15 @@ $(S)/textctrl-reentry/textctrl-reentry_test.html: $(S)/textctrl-reentry/textctrl
 
 textctrl-reentry: $(S)/textctrl-reentry/textctrl-reentry_test.html
 
+# wxStaticText ellipsize-on-resize repro: re-ellipsize the label on wxEVT_SIZE.
+$(S)/stattext-ellipsize/stattext-ellipsize_test.o: $(S)/stattext-ellipsize/stattext-ellipsize_test.cpp
+	$(CXX) -c $(CXXFLAGS) $< -o $@
+
+$(S)/stattext-ellipsize/stattext-ellipsize_test.html: $(S)/stattext-ellipsize/stattext-ellipsize_test.o $(WX_CORE_LIB) $(JS_FILES)
+	$(CXX) $< $(LDFLAGS_NOGL) --pre-js $(JS) --shell-file $(HTML) -o $@
+
+stattext-ellipsize: $(S)/stattext-ellipsize/stattext-ellipsize_test.html
+
 # wxToolTip hover-window lifetime repro (relies on wxWasmTooltipDebugHoverWindow).
 $(S)/tooltip-lifetime/tooltip-lifetime_test.o: $(S)/tooltip-lifetime/tooltip-lifetime_test.cpp
 	$(CXX) -c $(CXXFLAGS) $< -o $@

tests/apps/standalone/stattext-ellipsize/stattext-ellipsize_test.cpp

@@ -0,0 +1,85 @@
+// wxStaticText ellipsize-on-resize regression (DOM port).
+//
+// Bug (src/wasm/stattext.cpp): the label was ellipsized only inside SetLabel(),
+// using the control's client size AT THAT MOMENT. A wxStaticText placed in a
+// growable sizer cell (e.g. KiCad's gerbview Layers Manager, which uses
+// WX_ELLIPSIZED_STATIC_TEXT) is constructed narrow and only widened later by
+// layout. The DOM-port wxStaticText had no wxEVT_SIZE handler, so the visible
+// label stayed truncated to the early (tiny) width — rendering "1..." instead of
+// "1 tinytapeout-demo-User_2.gbr (Other, User)". Native ports re-ellipsize on
+// resize via wxStaticTextBase::UpdateLabel(); the fix binds wxEVT_SIZE to do the
+// same.
+//
+// This repro drives the exact sequence without a sizer (so the width changes are
+// unambiguous): the label is set while the control is narrow (ellipsized away),
+// then a button widens the control. wxST_NO_AUTORESIZE keeps our explicit width
+// so the only thing that can lengthen the visible text is the resize handler.
+//
+//   RED  (bug present): after widening, the visible text is still the narrow
+//                       ellipsization — the full name never appears.
+//   GREEN (fixed):      widening re-ellipsizes; the full label becomes visible.
+
+#include "wx/wxprec.h"
+#ifndef WX_PRECOMP
+    #include "wx/wx.h"
+#endif
+
+#ifdef __EMSCRIPTEN__
+#include <emscripten/emscripten.h>
+#endif
+
+// Long enough that it must be ellipsized at 60px but fits fully at >600px.
+static const char* const LONG_LABEL =
+    "1 tinytapeout-demo-User_2.gbr (Other, User)";
+
+enum { ID_GROW = wxID_HIGHEST + 1 };
+
+class EllipsizeFrame : public wxFrame
+{
+public:
+    EllipsizeFrame()
+        : wxFrame(nullptr, wxID_ANY, "stattext ellipsize repro",
+                  wxDefaultPosition, wxSize(700, 200))
+    {
+        wxButton* grow = new wxButton(this, ID_GROW, "Grow",
+                                      wxPoint(10, 10), wxSize(120, 30));
+        grow->Bind(wxEVT_BUTTON, &EllipsizeFrame::OnGrow, this);
+
+        m_text = new wxStaticText(this, wxID_ANY, wxEmptyString,
+                                  wxPoint(10, 60), wxSize(60, 24),
+                                  wxST_ELLIPSIZE_MIDDLE | wxST_NO_AUTORESIZE);
+        // Establish a valid (but small) client width, THEN set the label, so the
+        // first ellipsization happens at the narrow width.
+        m_text->SetSize(60, 24);
+        m_text->SetLabel(LONG_LABEL);
+
+#ifdef __EMSCRIPTEN__
+        CallAfter([] { EM_ASM({ console.log('[REPRO] stattext ready'); }); });
+#endif
+    }
+
+private:
+    void OnGrow(wxCommandEvent&)
+    {
+        // Widen past the label's natural width: the fix re-ellipsizes here (the
+        // full label now fits); the bug leaves the old truncation in place.
+        m_text->SetSize(640, 24);
+    }
+
+    wxStaticText* m_text = nullptr;
+};
+
+class EllipsizeApp : public wxApp
+{
+public:
+    bool OnInit() override
+    {
+        if (!wxApp::OnInit())
+            return false;
+
+        (new EllipsizeFrame())->Show(true);
+        return true;
+    }
+};
+
+wxIMPLEMENT_APP(EllipsizeApp);