Add GetDirect{Function,Pointer}() methods to wxStyledTextCtrl

These methods can be useful when working with dynamic lexers.

Closes #17481.

include/wx/stc/stc.h

@@ -3525,6 +3525,13 @@ public:
     // Retrieve the number of characters in the document.
     int GetTextLength() const;
 
+    // Retrieve a pointer to a function that processes messages for this Scintilla.
+    void* GetDirectFunction() const;
+
+    // Retrieve a pointer value to use as the first argument when calling
+    // the function returned by GetDirectFunction.
+    void* GetDirectPointer() const;
+
     // Set to overtype (true) or insert mode.
     void SetOvertype(bool overtype);
 

interface/wx/stc/stc.h

@@ -4019,6 +4019,21 @@ public:
     */
     int GetTextLength() const;
 
+    /**
+        Retrieve a pointer to a function that processes messages for this Scintilla.
+
+        @since 3.1.1
+    */
+    void* GetDirectFunction() const;
+
+    /**
+        Retrieve a pointer value to use as the first argument when calling
+        the function returned by GetDirectFunction.
+
+        @since 3.1.1
+    */
+    void* GetDirectPointer() const;
+
     /**
         Set to overtype (true) or insert mode.
     */

src/stc/ScintillaWX.cpp

@@ -800,6 +800,11 @@ sptr_t ScintillaWX::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam)
             LexerManager::GetInstance()->Load((const char*)lParam);
             break;
 #endif
+      case SCI_GETDIRECTFUNCTION:
+            return reinterpret_cast<sptr_t>(DirectFunction);
+
+      case SCI_GETDIRECTPOINTER:
+            return reinterpret_cast<sptr_t>(this);
 
       default:
           return ScintillaBase::WndProc(iMessage, wParam, lParam);
@@ -1246,6 +1251,11 @@ bool ScintillaWX::GetUseAntiAliasing() {
     return vs.extraFontFlag != 0;
 }
 
+sptr_t ScintillaWX::DirectFunction(
+    ScintillaWX* swx, unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
+    return swx->WndProc(iMessage, wParam, lParam);
+}
+
 //----------------------------------------------------------------------
 //----------------------------------------------------------------------
 

src/stc/ScintillaWX.h

@@ -210,6 +210,9 @@ private:
     bool HasCaretSizeChanged();
     bool CreateSystemCaret();
     bool DestroySystemCaret();
+
+    static sptr_t DirectFunction(ScintillaWX* swx, unsigned int iMessage,
+                                 uptr_t wParam, sptr_t lParam);
 #ifdef __WXMSW__
     HBITMAP sysCaretBitmap;
     int sysCaretWidth;

src/stc/gen_iface.py

@@ -591,8 +591,19 @@ methodOverrideMap = {
 
      ('Retrieve all the text in the document.', )),
 
-    'GetDirectFunction' : (None, 0, 0, 0),
-    'GetDirectPointer' : (None, 0, 0, 0),
+    'GetDirectFunction' :
+    (0,
+     'void* %s() const;',
+     '''void* %s() const {
+         return (void*)SendMsg(%s);''',
+     0),
+
+    'GetDirectPointer' :
+    (0,
+     'void* %s() const;',
+     '''void* %s() const {
+         return (void*)SendMsg(%s);''',
+     0),
 
     'GetTargetText' :
     (0,

src/stc/stc.cpp

@@ -1824,6 +1824,17 @@ int wxStyledTextCtrl::GetTextLength() const
     return SendMsg(SCI_GETTEXTLENGTH, 0, 0);
 }
 
+// Retrieve a pointer to a function that processes messages for this Scintilla.
+void* wxStyledTextCtrl::GetDirectFunction() const {
+         return (void*)SendMsg(SCI_GETDIRECTFUNCTION);
+}
+
+// Retrieve a pointer value to use as the first argument when calling
+// the function returned by GetDirectFunction.
+void* wxStyledTextCtrl::GetDirectPointer() const {
+         return (void*)SendMsg(SCI_GETDIRECTPOINTER);
+}
+
 // Set to overtype (true) or insert mode.
 void wxStyledTextCtrl::SetOvertype(bool overtype)
 {