don't crash when destroying a not initialized socket (patch 1489095)

[wxWidgets.git] / src / msw / control.cpp

diff --git a/src/msw/control.cpp b/src/msw/control.cpp
index a020137ad7f7367a68f625f48d1704ac40256810..73a8f2511aaba32dc3110d227b046830e96c3ae3 100644 (file)
--- a/src/msw/control.cpp
+++ b/src/msw/control.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        msw/control.cpp
+// Name:        src/msw/control.cpp

 // Purpose:     wxControl class
 // Author:      Julian Smart
 // Modified by:
 // Purpose:     wxControl class
 // Author:      Julian Smart
 // Modified by:


@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "control.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 


@@ -30,6 +26,8 @@
 
 #if wxUSE_CONTROLS
 
 
 #if wxUSE_CONTROLS
 

+#include "wx/control.h"
+

 #ifndef WX_PRECOMP
     #include "wx/event.h"
     #include "wx/app.h"
 #ifndef WX_PRECOMP
     #include "wx/event.h"
     #include "wx/app.h"


@@ -38,18 +36,19 @@
     #include "wx/settings.h"
 #endif
 
     #include "wx/settings.h"
 #endif
 

-#include "wx/control.h"
+#if wxUSE_LISTCTRL
+    #include "wx/listctrl.h"
+#endif // wxUSE_LISTCTRL

 
 

-#if wxUSE_NOTEBOOK
-    #include "wx/notebook.h"
-#endif // wxUSE_NOTEBOOK
+#if wxUSE_TREECTRL
+    #include "wx/treectrl.h"
+#endif // wxUSE_TREECTRL

 
 #include "wx/msw/private.h"
 #include "wx/msw/uxtheme.h"
 
 
 #include "wx/msw/private.h"
 #include "wx/msw/uxtheme.h"
 

-#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__))
-    #include <commctrl.h>
-#endif
+// include <commctrl.h> "properly"
+#include "wx/msw/wrapcctl.h"

 
 // ----------------------------------------------------------------------------
 // wxWin macros
 
 // ----------------------------------------------------------------------------
 // wxWin macros


@@ -139,25 +138,11 @@ bool wxControl::MSWCreateControl(const wxChar *classname,
     // ... and adjust it to account for a possible parent frames toolbar
     AdjustForParentClientOrigin(x, y);
 
     // ... and adjust it to account for a possible parent frames toolbar
     AdjustForParentClientOrigin(x, y);
 

-    // notice the apparently unnecessary label.empty() test: without it wse get
-    // crashes when creating controls (notebook to be precise) with empty
-    // labels as for some reason Windows looks not only at first but also at
-    // the second byte of the string which is not NUL in the buffer pointed to
-    // by label.c_str() and if the buffer contains "00 cc cc cc ..." (this is
-    // what happens in debug build where 0xcc is used as uninitialized memory
-    // marker) it creates a window not with empty label but with label
-    // consisting of many Unicode (!) 0xcccc characters
-    //
-    // this is not fatal in itself, but becomes so when wxGetWindowText() is
-    // called because GetWindowTextA() overwrites ASCII buffer with Unicode (!)
-    // characters without any qualms and so crashes the program...

     m_hWnd = (WXHWND)::CreateWindowEx
                        (
                         exstyle,            // extended style
                         classname,          // the kind of control to create
     m_hWnd = (WXHWND)::CreateWindowEx
                        (
                         exstyle,            // extended style
                         classname,          // the kind of control to create

-                        label.empty()       // the window name
-                            ? _T("\0")
-                            : label.c_str(),
+                        label,              // the window name

                         style,              // the window style
                         x, y, w, h,         // the window position and size
                         GetHwndOf(GetParent()),  // parent
                         style,              // the window style
                         x, y, w, h,         // the window position and size
                         GetHwndOf(GetParent()),  // parent


@@ -184,8 +169,33 @@ bool wxControl::MSWCreateControl(const wxChar *classname,
 
     // set up fonts and colours
     InheritAttributes();
 
     // set up fonts and colours
     InheritAttributes();

-    if (!m_hasFont)
-        SetFont(GetDefaultAttributes().font);
+    if ( !m_hasFont )
+    {
+#if wxUSE_LISTCTRL || wxUSE_TREECTRL
+        // if we set a font for {list,tree}ctrls and the font size is changed in
+        // the display properties then the font size for these controls doesn't
+        // automatically adjust when they receive WM_SETTINGCHANGE
+        if ( wxDynamicCastThis(wxListCtrl) || wxDynamicCastThis(wxTreeCtrl) )
+        {
+            // not sure if we need to explicitly set the font here for Win95/NT4
+            // but we definitely can't do it for any newer version
+            // see wxGetCCDefaultFont() in src/msw/settings.cpp for explanation
+            // of why this test works
+
+            // TODO: test Win95/NT4 to see if this is needed or breaks the
+            // font resizing as it does on newer versions
+            wxFont font = GetDefaultAttributes().font;
+            if ( font == wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT) )
+            {
+                SetFont(font);
+            }
+        }
+        else
+#endif // wxUSE_LISTCTRL || wxUSE_TREECTRL
+        {
+            SetFont(GetDefaultAttributes().font);
+        }
+    }

 
     // set the size now if no initial size specified
     SetInitialBestSize(size);
 
     // set the size now if no initial size specified
     SetInitialBestSize(size);


@@ -296,7 +306,6 @@ bool wxControl::ProcessCommand(wxCommandEvent& event)
     return GetEventHandler()->ProcessEvent(event);
 }
 
     return GetEventHandler()->ProcessEvent(event);
 }
 

-#ifdef __WIN95__

 bool wxControl::MSWOnNotify(int idCtrl,
                             WXLPARAM lParam,
                             WXLPARAM* result)
 bool wxControl::MSWOnNotify(int idCtrl,
                             WXLPARAM lParam,
                             WXLPARAM* result)


@@ -344,7 +353,6 @@ bool wxControl::MSWOnNotify(int idCtrl,
 
     return GetEventHandler()->ProcessEvent(event);
 }
 
     return GetEventHandler()->ProcessEvent(event);
 }

-#endif // Win95

 
 WXHBRUSH wxControl::DoMSWControlColor(WXHDC pDC, wxColour colBg, WXHWND hWnd)
 {
 
 WXHBRUSH wxControl::DoMSWControlColor(WXHDC pDC, wxColour colBg, WXHWND hWnd)
 {