fix memory leak (coverity checker CID 53)

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

diff --git a/src/msw/menu.cpp b/src/msw/menu.cpp
index 462bea448b3ee9af24ba396146962ae3c76cd510..85d93d73a9cd76c317a87463394a7907c03bb667 100644 (file)
--- a/src/msw/menu.cpp
+++ b/src/msw/menu.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

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

 // Purpose:     wxMenu, wxMenuBar, wxMenuItem
 // Author:      Julian Smart
 // Modified by: Vadim Zeitlin
 // Purpose:     wxMenu, wxMenuBar, wxMenuItem
 // Author:      Julian Smart
 // Modified by: Vadim Zeitlin


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

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "menu.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"
 


@@ -62,6 +58,17 @@
 // other standard headers
 #include <string.h>
 
 // other standard headers
 #include <string.h>
 

+#if wxUSE_OWNER_DRAWN && defined(MIIM_BITMAP)
+    #include "wx/dynlib.h"
+#endif
+
+#ifndef MNS_CHECKORBMP
+    #define MNS_CHECKORBMP 0x04000000
+#endif
+#ifndef MIM_STYLE
+    #define MIM_STYLE 0x00000010
+#endif
+

 // ----------------------------------------------------------------------------
 // global variables
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // global variables
 // ----------------------------------------------------------------------------


@@ -78,7 +85,8 @@ static const int idMenuTitle = -3;
 // ----------------------------------------------------------------------------
 
 // make the given menu item default
 // ----------------------------------------------------------------------------
 
 // make the given menu item default

-static void SetDefaultMenuItem(HMENU hmenu, UINT id)
+static void SetDefaultMenuItem(HMENU WXUNUSED_IN_WINCE(hmenu),
+                               UINT WXUNUSED_IN_WINCE(id))

 {
 #ifndef __WXWINCE__
     MENUITEMINFO mii;
 {
 #ifndef __WXWINCE__
     MENUITEMINFO mii;


@@ -91,9 +99,6 @@ static void SetDefaultMenuItem(HMENU hmenu, UINT id)
     {
         wxLogLastError(wxT("SetMenuItemInfo"));
     }
     {
         wxLogLastError(wxT("SetMenuItemInfo"));
     }

-#else
-    wxUnusedVar(hmenu);
-    wxUnusedVar(id);

 #endif
 }
 
 #endif
 }
 


@@ -115,9 +120,9 @@ UINT GetMenuState(HMENU hMenu, UINT id, UINT flags)
 // implementation
 // ============================================================================
 
 // implementation
 // ============================================================================
 

-#include <wx/listimpl.cpp>
+#include "wx/listimpl.cpp"

 
 

-WX_DEFINE_LIST( wxMenuInfoList ) ;
+WX_DEFINE_LIST( wxMenuInfoList )

 
 #if wxUSE_EXTENDED_RTTI
 
 
 #if wxUSE_EXTENDED_RTTI
 


@@ -296,6 +301,16 @@ void wxMenu::UpdateAccel(wxMenuItem *item)
     }
     else if ( !item->IsSeparator() )
     {
     }
     else if ( !item->IsSeparator() )
     {

+        // recurse upwards: we should only modify m_accels of the top level
+        // menus, not of the submenus as wxMenuBar doesn't look at them
+        // (alternative and arguable cleaner solution would be to recurse
+        // downwards in GetAccelCount() and CopyAccels())
+        if ( GetParent() )
+        {
+            GetParent()->UpdateAccel(item);
+            return;
+        }
+

         // find the (new) accel for this item
         wxAcceleratorEntry *accel = wxGetAccelFromString(item->GetText());
         if ( accel )
         // find the (new) accel for this item
         wxAcceleratorEntry *accel = wxGetAccelFromString(item->GetText());
         if ( accel )


@@ -374,10 +389,15 @@ bool wxMenu::DoInsertOrAppend(wxMenuItem *pItem, size_t pos)
     LPCTSTR pData = NULL;
     if ( pos == (size_t)-1 )
     {
     LPCTSTR pData = NULL;
     if ( pos == (size_t)-1 )
     {

-        // append at the end
-        pos = ::GetMenuItemCount(GetHmenu());
+        // append at the end (note that the item is already appended to
+        // internal data structures)
+        pos = GetMenuItemCount() - 1;

     }
 
     }
 

+    // adjust position to account for the title, if any
+    if ( !m_title.empty() )
+        pos += 2; // for the title itself and its separator
+

     BOOL ok = false;
 
     // check if we have something more than a simple text item
     BOOL ok = false;
 
     // check if we have something more than a simple text item


@@ -388,7 +408,8 @@ bool wxMenu::DoInsertOrAppend(wxMenuItem *pItem, size_t pos)
         if ( pItem->GetBitmap().Ok() &&
                 !pItem->GetTextColour().Ok() &&
                     !pItem->GetBackgroundColour().Ok() &&
         if ( pItem->GetBitmap().Ok() &&
                 !pItem->GetTextColour().Ok() &&
                     !pItem->GetBackgroundColour().Ok() &&

-                        !pItem->GetFont().Ok() )
+                        !pItem->GetFont().Ok() &&
+                            !pItem->GetBitmap(true).Ok() )

         {
             // try to use InsertMenuItem() as it's guaranteed to look correctly
             // while our owner-drawning code is not
         {
             // try to use InsertMenuItem() as it's guaranteed to look correctly
             // while our owner-drawning code is not


@@ -400,11 +421,21 @@ bool wxMenu::DoInsertOrAppend(wxMenuItem *pItem, size_t pos)
             // now run-time one: MIIM_BITMAP only works under WinME/2000+
             if ( wxGetWinVersion() >= wxWinVersion_98 )
             {
             // now run-time one: MIIM_BITMAP only works under WinME/2000+
             if ( wxGetWinVersion() >= wxWinVersion_98 )
             {

-                mii.fMask = MIIM_ID | MIIM_STRING | MIIM_DATA | MIIM_BITMAP;
-                mii.wID = id;
+                mii.fMask = MIIM_STRING | MIIM_DATA | MIIM_BITMAP;

                 mii.cch = itemText.length();
                 mii.dwTypeData = wx_const_cast(wxChar *, itemText.c_str());
 
                 mii.cch = itemText.length();
                 mii.dwTypeData = wx_const_cast(wxChar *, itemText.c_str());
 

+                if (flags & MF_POPUP)
+                {
+                    mii.fMask |= MIIM_SUBMENU;
+                    mii.hSubMenu = (HMENU)pItem->GetSubMenu()->GetHMenu();
+                }
+                else
+                {
+                    mii.fMask |= MIIM_ID;
+                    mii.wID = id;
+                }
+

                 // we can't pass HBITMAP directly as hbmpItem for 2 reasons:
                 //  1. we can't draw it with transparency then (this is not
                 //     very important now but would be with themed menu bg)
                 // we can't pass HBITMAP directly as hbmpItem for 2 reasons:
                 //  1. we can't draw it with transparency then (this is not
                 //     very important now but would be with themed menu bg)


@@ -428,10 +459,19 @@ bool wxMenu::DoInsertOrAppend(wxMenuItem *pItem, size_t pos)
                     // case in wx API
                     WinStruct<MENUINFO> mi;
 
                     // case in wx API
                     WinStruct<MENUINFO> mi;
 

-                    mi.fMask = MIM_STYLE;
-                    mi.dwStyle = MNS_CHECKORBMP;
-                    if ( !::SetMenuInfo(GetHmenu(), &mi) )
-                        wxLogLastError(_T("SetMenuInfo(MNS_NOCHECK)"));
+                    // don't call SetMenuInfo() directly, this would prevent
+                    // the app from starting up under Windows 95/NT 4
+                    typedef BOOL (WINAPI *SetMenuInfo_t)(HMENU, MENUINFO *);
+
+                    wxDynamicLibrary dllUser(_T("user32"));
+                    wxDYNLIB_FUNCTION(SetMenuInfo_t, SetMenuInfo, dllUser);
+                    if ( pfnSetMenuInfo )
+                    {
+                        mi.fMask = MIM_STYLE;
+                        mi.dwStyle = MNS_CHECKORBMP;
+                        if ( !(*pfnSetMenuInfo)(GetHmenu(), &mi) )
+                            wxLogLastError(_T("SetMenuInfo(MNS_NOCHECK)"));
+                    }

 
                     // tell the item that it's not really owner-drawn but only
                     // needs to draw its bitmap, the rest is done by Windows
 
                     // tell the item that it's not really owner-drawn but only
                     // needs to draw its bitmap, the rest is done by Windows


@@ -668,7 +708,7 @@ void wxMenu::SetTitle(const wxString& label)
             info.cbSize = sizeof(info);
             info.fMask = MIIM_TYPE;
             info.fType = MFT_STRING;
             info.cbSize = sizeof(info);
             info.fMask = MIIM_TYPE;
             info.fType = MFT_STRING;

-            info.cch = m_title.Length();
+            info.cch = m_title.length();

             info.dwTypeData = (LPTSTR) m_title.c_str();
             if ( !SetMenuItemInfo(hMenu, 0, TRUE, & info) )
             {
             info.dwTypeData = (LPTSTR) m_title.c_str();
             if ( !SetMenuItemInfo(hMenu, 0, TRUE, & info) )
             {


@@ -976,7 +1016,7 @@ void wxMenuBar::SetLabelTop(size_t pos, const wxString& label)
     info.cbSize = sizeof(info);
     info.fMask = MIIM_TYPE;
     info.fType = MFT_STRING;
     info.cbSize = sizeof(info);
     info.fMask = MIIM_TYPE;
     info.fType = MFT_STRING;

-    info.cch = label.Length();
+    info.cch = label.length();

     info.dwTypeData = (LPTSTR) label.c_str();
     if ( !SetMenuItemInfo(GetHmenu(), id, TRUE, & info) )
     {
     info.dwTypeData = (LPTSTR) label.c_str();
     if ( !SetMenuItemInfo(GetHmenu(), id, TRUE, & info) )
     {


@@ -1014,7 +1054,11 @@ wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
 
     m_titles[pos] = title;
 
 
     m_titles[pos] = title;
 

-    if ( IsAttached() )
+#if defined(WINCE_WITHOUT_COMMANDBAR)
+    if (IsAttached())
+#else
+    if (GetHmenu())
+#endif

     {
         int mswpos = MSWPositionForWxMenu(menuOld,pos);
 
     {
         int mswpos = MSWPositionForWxMenu(menuOld,pos);
 


@@ -1039,7 +1083,8 @@ wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
         }
 #endif // wxUSE_ACCEL
 
         }
 #endif // wxUSE_ACCEL
 

-        Refresh();
+        if (IsAttached())
+            Refresh();

     }
 
     return menuOld;
     }
 
     return menuOld;


@@ -1050,7 +1095,14 @@ bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
     // Find out which MSW item before which we'll be inserting before
     // wxMenuBarBase::Insert is called and GetMenu(pos) is the new menu.
     // If IsAttached() is false this won't be used anyway
     // Find out which MSW item before which we'll be inserting before
     // wxMenuBarBase::Insert is called and GetMenu(pos) is the new menu.
     // If IsAttached() is false this won't be used anyway

-    int mswpos = (!IsAttached() || (pos == m_menus.GetCount()))
+    bool isAttached =
+#if defined(WINCE_WITHOUT_COMMANDBAR)
+        IsAttached();
+#else
+        (GetHmenu() != 0);
+#endif
+
+    int mswpos = (!isAttached || (pos == m_menus.GetCount()))

         ?   -1 // append the menu
         :   MSWPositionForWxMenu(GetMenu(pos),pos);
 
         ?   -1 // append the menu
         :   MSWPositionForWxMenu(GetMenu(pos),pos);
 


@@ -1059,9 +1111,9 @@ bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
 
     m_titles.Insert(title, pos);
 
 
     m_titles.Insert(title, pos);
 

-    if ( IsAttached() )
+    if ( isAttached )

     {
     {

-#if defined(WINCE_WITHOUT_COMMANDAR)
+#if defined(WINCE_WITHOUT_COMMANDBAR)

         if (!GetToolBar())
             return false;
         TBBUTTON tbButton;
         if (!GetToolBar())
             return false;
         TBBUTTON tbButton;


@@ -1081,6 +1133,7 @@ bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
             wxLogLastError(wxT("TB_INSERTBUTTON"));
             return false;
         }
             wxLogLastError(wxT("TB_INSERTBUTTON"));
             return false;
         }

+        wxUnusedVar(mswpos);

 #else
         if ( !::InsertMenu(GetHmenu(), mswpos,
                            MF_BYPOSITION | MF_POPUP | MF_STRING,
 #else
         if ( !::InsertMenu(GetHmenu(), mswpos,
                            MF_BYPOSITION | MF_POPUP | MF_STRING,


@@ -1097,7 +1150,8 @@ bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
         }
 #endif // wxUSE_ACCEL
 
         }
 #endif // wxUSE_ACCEL
 

-        Refresh();
+        if (IsAttached())
+            Refresh();

     }
 
     return true;
     }
 
     return true;


@@ -1113,9 +1167,13 @@ bool wxMenuBar::Append(wxMenu *menu, const wxString& title)
 
     m_titles.Add(title);
 
 
     m_titles.Add(title);
 

-    if ( IsAttached() )
+#if defined(WINCE_WITHOUT_COMMANDBAR)
+    if (IsAttached())
+#else
+    if (GetHmenu())
+#endif

     {
     {

-#if defined(WINCE_WITHOUT_COMMANDAR)
+#if defined(WINCE_WITHOUT_COMMANDBAR)

         if (!GetToolBar())
             return false;
         TBBUTTON tbButton;
         if (!GetToolBar())
             return false;
         TBBUTTON tbButton;


@@ -1152,7 +1210,8 @@ bool wxMenuBar::Append(wxMenu *menu, const wxString& title)
         }
 #endif // wxUSE_ACCEL
 
         }
 #endif // wxUSE_ACCEL
 

-        Refresh();
+        if (IsAttached())
+            Refresh();

     }
 
     return true;
     }
 
     return true;


@@ -1164,9 +1223,13 @@ wxMenu *wxMenuBar::Remove(size_t pos)
     if ( !menu )
         return NULL;
 
     if ( !menu )
         return NULL;
 

-    if ( IsAttached() )
+#if defined(WINCE_WITHOUT_COMMANDBAR)
+    if (IsAttached())
+#else
+    if (GetHmenu())
+#endif

     {
     {

-#if defined(WINCE_WITHOUT_COMMANDAR)
+#if defined(WINCE_WITHOUT_COMMANDBAR)

         if (GetToolBar())
         {
             if (!::SendMessage((HWND) GetToolBar()->GetHWND(), TB_DELETEBUTTON, (UINT) pos, (LPARAM) 0))
         if (GetToolBar())
         {
             if (!::SendMessage((HWND) GetToolBar()->GetHWND(), TB_DELETEBUTTON, (UINT) pos, (LPARAM) 0))


@@ -1189,10 +1252,10 @@ wxMenu *wxMenuBar::Remove(size_t pos)
         }
 #endif // wxUSE_ACCEL
 
         }
 #endif // wxUSE_ACCEL
 

-        Refresh();
+        if (IsAttached())
+            Refresh();

     }
 
     }
 

-

     m_titles.RemoveAt(pos);
 
     return menu;
     m_titles.RemoveAt(pos);
 
     return menu;