]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/menuitem.cpp
Don't set wxTextAttr font family to invalid value.
[wxWidgets.git] / src / msw / menuitem.cpp
index 70f41fc246d595614d4f0842ac30db068e8e9858..d1815b969de047294f8be2f4bf8d14ef7d6ce932 100644 (file)
@@ -1,12 +1,12 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        menuitem.cpp
+// Name:        src/msw/menuitem.cpp
 // Purpose:     wxMenuItem implementation
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     11.11.97
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ===========================================================================
 // headers
 // ---------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "menuitem.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
     #pragma hdrstop
 #endif
 
+#if wxUSE_MENUS
+
+#include "wx/menuitem.h"
+#include "wx/stockitem.h"
+
 #ifndef WX_PRECOMP
     #include "wx/font.h"
     #include "wx/bitmap.h"
     #include "wx/settings.h"
-    #include "wx/font.h"
+    #include "wx/window.h"
     #include "wx/accel.h"
-    #include "wx/menu.h"
     #include "wx/string.h"
-    #include "wx/window.h"
+    #include "wx/log.h"
+    #include "wx/menu.h"
 #endif
 
-#include "wx/ownerdrw.h"
-#include "wx/menuitem.h"
-#include "wx/log.h"
+#if wxUSE_ACCEL
+    #include "wx/accel.h"
+#endif // wxUSE_ACCEL
 
 #include "wx/msw/private.h"
 
+#ifdef __WXWINCE__
+// Implemented in menu.cpp
+UINT GetMenuState(HMENU hMenu, UINT id, UINT flags) ;
+#endif
+
 // ---------------------------------------------------------------------------
-// convenience macro
+// macro
 // ---------------------------------------------------------------------------
 
+// hide the ugly cast
 #define GetHMenuOf(menu)    ((HMENU)menu->GetHMenu())
 
+// conditional compilation
+#if wxUSE_OWNER_DRAWN
+    #define OWNER_DRAWN_ONLY( code ) if ( IsOwnerDrawn() ) code
+#else // !wxUSE_OWNER_DRAWN
+    #define OWNER_DRAWN_ONLY( code )
+#endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN
+
 // ============================================================================
 // implementation
 // ============================================================================
 // dynamic classes implementation
 // ----------------------------------------------------------------------------
 
-#if     !defined(USE_SHARED_LIBRARY) || !USE_SHARED_LIBRARY
-#if wxUSE_OWNER_DRAWN
-  IMPLEMENT_DYNAMIC_CLASS2(wxMenuItem, wxObject, wxOwnerDrawn)
-#else   //!USE_OWNER_DRAWN
-  IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject)
-#endif  //USE_OWNER_DRAWN
+#if wxUSE_EXTENDED_RTTI
+
+bool wxMenuItemStreamingCallback( const wxObject *object, wxWriter * , wxPersister * , wxxVariantArray & )
+{
+    const wxMenuItem * mitem = dynamic_cast<const wxMenuItem*>(object) ;
+    if ( mitem->GetMenu() && !mitem->GetMenu()->GetTitle().empty() )
+    {
+        // we don't stream out the first two items for menus with a title, they will be reconstructed
+        if ( mitem->GetMenu()->FindItemByPosition(0) == mitem || mitem->GetMenu()->FindItemByPosition(1) == mitem )
+            return false ;
+    }
+    return true ;
+}
 
-#endif  //USE_SHARED_LIBRARY
+wxBEGIN_ENUM( wxItemKind )
+    wxENUM_MEMBER( wxITEM_SEPARATOR )
+    wxENUM_MEMBER( wxITEM_NORMAL )
+    wxENUM_MEMBER( wxITEM_CHECK )
+    wxENUM_MEMBER( wxITEM_RADIO )
+wxEND_ENUM( wxItemKind )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI_CALLBACK(wxMenuItem, wxObject,"wx/menuitem.h",wxMenuItemStreamingCallback)
+
+wxBEGIN_PROPERTIES_TABLE(wxMenuItem)
+    wxPROPERTY( Parent,wxMenu*, SetMenu, GetMenu, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+    wxPROPERTY( Id,int, SetId, GetId, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+    wxPROPERTY( Text, wxString , SetText, GetText, wxString(), 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+    wxPROPERTY( Help, wxString , SetHelp, GetHelp, wxString(), 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+    wxREADONLY_PROPERTY( Kind, wxItemKind , GetKind , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+    wxPROPERTY( SubMenu,wxMenu*, SetSubMenu, GetSubMenu, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+    wxPROPERTY( Enabled , bool , Enable , IsEnabled , wxxVariant((bool)true) , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+    wxPROPERTY( Checked , bool , Check , IsChecked , wxxVariant((bool)false) , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+    wxPROPERTY( Checkable , bool , SetCheckable , IsCheckable , wxxVariant((bool)false) , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxMenuItem)
+wxEND_HANDLERS_TABLE()
+
+wxDIRECT_CONSTRUCTOR_6( wxMenuItem , wxMenu* , Parent , int , Id , wxString , Text , wxString , Help , wxItemKind , Kind , wxMenu* , SubMenu  )
+#else
+IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject)
+#endif
 
 // ----------------------------------------------------------------------------
 // wxMenuItem
 // ctor & dtor
 // -----------
 
-wxMenuItem::wxMenuItem(wxMenu *pParentMenu, int id,
-                       const wxString& strName, const wxString& strHelp,
-                       bool bCheckable,
-                       wxMenu *pSubMenu) :
+wxMenuItem::wxMenuItem(wxMenu *pParentMenu,
+                       int id,
+                       const wxString& text,
+                       const wxString& strHelp,
+                       wxItemKind kind,
+                       wxMenu *pSubMenu)
+          : wxMenuItemBase(pParentMenu, id, text, strHelp, kind, pSubMenu)
 #if wxUSE_OWNER_DRAWN
-                        wxOwnerDrawn(strName, bCheckable),
-#else   //no owner drawn support
-                        m_bCheckable(bCheckable),
-                        m_strName(strName),
-#endif  //owner drawn
-                        m_strHelp(strHelp)
+            , wxOwnerDrawn(text, kind == wxITEM_CHECK, true)
+#endif // owner drawn
 {
-    wxASSERT_MSG( pParentMenu != NULL, "a menu item should have a parent" );
+    Init();
+}
+
+#if WXWIN_COMPATIBILITY_2_8
+wxMenuItem::wxMenuItem(wxMenu *parentMenu,
+                       int id,
+                       const wxString& text,
+                       const wxString& help,
+                       bool isCheckable,
+                       wxMenu *subMenu)
+          : wxMenuItemBase(parentMenu, id, text, help,
+                           isCheckable ? wxITEM_CHECK : wxITEM_NORMAL, subMenu)
+#if wxUSE_OWNER_DRAWN
+           , wxOwnerDrawn(text, isCheckable, true)
+#endif // owner drawn
+{
+    Init();
+}
+#endif
+
+void wxMenuItem::Init()
+{
+    m_radioGroup.start = -1;
+    m_isRadioGroupStart = false;
 
 #if  wxUSE_OWNER_DRAWN
-    // set default menu colors
-    #define SYS_COLOR(c) (wxSystemSettings::GetSystemColour(wxSYS_COLOUR_##c))
 
-    SetTextColour(SYS_COLOR(MENUTEXT));
-    SetBackgroundColour(SYS_COLOR(MENU));
+    // when the color is not valid, wxOwnerDraw takes the default ones.
+    // If we set the colors here and they are changed by the user during
+    // the execution, then the colors are not updated until the application
+    // is restarted and our menus look bad
+    SetTextColour(wxNullColour);
+    SetBackgroundColour(wxNullColour);
 
-    // we don't want normal items be owner-drawn
+    // setting default colors switched ownerdraw on: switch it off again
     ResetOwnerDrawn();
 
-    #undef  SYS_COLOR
-#endif
+    //  switch ownerdraw back on if using a non default margin
+    if ( !IsSeparator() )
+        SetMarginWidth(GetMarginWidth());
 
-    m_pParentMenu = pParentMenu;
-    m_pSubMenu    = pSubMenu;
-    m_bEnabled    = TRUE;
-    m_idItem      = id;
+    // tell the owner drawing code to show the accel string as well
+    SetAccelString(m_text.AfterFirst(wxT('\t')));
+#endif // wxUSE_OWNER_DRAWN
 }
 
 wxMenuItem::~wxMenuItem()
@@ -116,101 +188,266 @@ wxMenuItem::~wxMenuItem()
 // ----
 
 // return the id for calling Win32 API functions
-int wxMenuItem::GetRealId() const
+WXWPARAM wxMenuItem::GetMSWId() const
 {
-    return m_pSubMenu ? (int)m_pSubMenu->GetHMenu() : GetId();
+    // we must use ids in unsigned short range with Windows functions, if we
+    // pass ids > USHRT_MAX to them they get very confused (e.g. start
+    // generating WM_COMMAND messages with negative high word of wParam), so
+    // use the cast to ensure the id is in range
+    return m_subMenu ? wxPtrToUInt(m_subMenu->GetHMenu())
+                     : static_cast<unsigned short>(GetId());
 }
 
-// delete the sub menu
-// -------------------
-void wxMenuItem::DeleteSubMenu()
+// get item state
+// --------------
+
+bool wxMenuItem::IsChecked() const
 {
-    delete m_pSubMenu;
-    m_pSubMenu = NULL;
+    // fix that RTTI is always getting the correct state (separators cannot be
+    // checked, but the Windows call below returns true
+    if ( IsSeparator() )
+        return false;
+
+    // the item might not be attached to a menu yet
+    //
+    // TODO: shouldn't we just always call the base class version? It seems
+    //       like it ought to always be in sync
+    if ( !m_parentMenu )
+        return wxMenuItemBase::IsChecked();
+
+    HMENU hmenu = GetHMenuOf(m_parentMenu);
+    int flag = ::GetMenuState(hmenu, GetMSWId(), MF_BYCOMMAND);
+
+    return (flag & MF_CHECKED) != 0;
+}
+
+// radio group stuff
+// -----------------
+
+void wxMenuItem::SetAsRadioGroupStart()
+{
+    m_isRadioGroupStart = true;
+}
+
+void wxMenuItem::SetRadioGroupStart(int start)
+{
+    wxASSERT_MSG( !m_isRadioGroupStart,
+                  wxT("should only be called for the next radio items") );
+
+    m_radioGroup.start = start;
+}
+
+void wxMenuItem::SetRadioGroupEnd(int end)
+{
+    wxASSERT_MSG( m_isRadioGroupStart,
+                  wxT("should only be called for the first radio item") );
+
+    m_radioGroup.end = end;
 }
 
 // change item state
 // -----------------
 
-void wxMenuItem::Enable(bool bDoEnable)
+void wxMenuItem::Enable(bool enable)
 {
-    if ( m_bEnabled != bDoEnable ) {
-        long rc = EnableMenuItem(GetHMenuOf(m_pParentMenu),
-                                 GetRealId(),
+    if ( m_isEnabled == enable )
+        return;
+
+    if ( m_parentMenu )
+    {
+        long rc = EnableMenuItem(GetHMenuOf(m_parentMenu),
+                                 GetMSWId(),
                                  MF_BYCOMMAND |
-                                 (bDoEnable ? MF_ENABLED : MF_GRAYED));
+                                 (enable ? MF_ENABLED : MF_GRAYED));
 
-        if ( rc == -1 ) {
-            wxLogLastError("EnableMenuItem");
+        if ( rc == -1 )
+        {
+            wxLogLastError(wxT("EnableMenuItem"));
         }
-
-        m_bEnabled = bDoEnable;
     }
+
+    wxMenuItemBase::Enable(enable);
 }
 
-void wxMenuItem::Check(bool bDoCheck)
+void wxMenuItem::Check(bool check)
 {
-    wxCHECK_RET( IsCheckable(), "only checkable items may be checked" );
+    wxCHECK_RET( IsCheckable(), wxT("only checkable items may be checked") );
+
+    if ( m_isChecked == check )
+        return;
 
-    if ( m_bChecked != bDoCheck ) {
-        long rc = CheckMenuItem(GetHMenuOf(m_pParentMenu),
-                                GetId(),
-                                MF_BYCOMMAND |
-                                (bDoCheck ? MF_CHECKED : MF_UNCHECKED));
+    if ( m_parentMenu )
+    {
+        int flags = check ? MF_CHECKED : MF_UNCHECKED;
+        HMENU hmenu = GetHMenuOf(m_parentMenu);
 
-        if ( rc == -1 ) {
-            wxLogLastError("CheckMenuItem");
+        if ( GetKind() == wxITEM_RADIO )
+        {
+            // it doesn't make sense to uncheck a radio item -- what would this
+            // do?
+            if ( !check )
+                return;
+
+            // get the index of this item in the menu
+            const wxMenuItemList& items = m_parentMenu->GetMenuItems();
+            int pos = items.IndexOf(this);
+            wxCHECK_RET( pos != wxNOT_FOUND,
+                         wxT("menuitem not found in the menu items list?") );
+
+            // get the radio group range
+            int start,
+                end;
+
+            if ( m_isRadioGroupStart )
+            {
+                // we already have all information we need
+                start = pos;
+                end = m_radioGroup.end;
+            }
+            else // next radio group item
+            {
+                // get the radio group end from the start item
+                start = m_radioGroup.start;
+                end = items.Item(start)->GetData()->m_radioGroup.end;
+            }
+
+#ifdef __WIN32__
+            // calling CheckMenuRadioItem() with such parameters hangs my system
+            // (NT4 SP6) and I suspect this could happen to the others as well,
+            // so don't do it!
+            wxCHECK_RET( start != -1 && end != -1,
+                         wxT("invalid ::CheckMenuRadioItem() parameter(s)") );
+
+            if ( !::CheckMenuRadioItem(hmenu,
+                                       start,   // the first radio group item
+                                       end,     // the last one
+                                       pos,     // the one to check
+                                       MF_BYPOSITION) )
+            {
+                wxLogLastError(wxT("CheckMenuRadioItem"));
+            }
+#endif // __WIN32__
+
+            // also uncheck all the other items in this radio group
+            wxMenuItemList::compatibility_iterator node = items.Item(start);
+            for ( int n = start; n <= end && node; n++ )
+            {
+                if ( n != pos )
+                {
+                    node->GetData()->m_isChecked = false;
+                }
+
+                node = node->GetNext();
+            }
+        }
+        else // check item
+        {
+            if ( ::CheckMenuItem(hmenu,
+                                 GetMSWId(),
+                                 MF_BYCOMMAND | flags) == (DWORD)-1 )
+            {
+                wxFAIL_MSG(wxT("CheckMenuItem() failed, item not in the menu?"));
+            }
         }
-
-        m_bChecked = bDoCheck;
     }
+
+    wxMenuItemBase::Check(check);
 }
 
-void wxMenuItem::SetName(const wxString& strName)
+void wxMenuItem::SetItemLabel(const wxString& txt)
 {
+    wxString text = txt;
+
     // don't do anything if label didn't change
-    if ( m_strName == strName )
+    if ( m_text == txt )
         return;
 
-    m_strName = strName;
+    // wxMenuItemBase will do stock ID checks
+    wxMenuItemBase::SetItemLabel(text);
+
+    // m_text could now be different from 'text' if we are a stock menu item,
+    // so use only m_text below
 
-    HMENU hMenu = GetHMenuOf(m_pParentMenu);
+    OWNER_DRAWN_ONLY( wxOwnerDrawn::SetName(m_text) );
+#if wxUSE_OWNER_DRAWN
+    // tell the owner drawing code to to show the accel string as well
+    SetAccelString(m_text.AfterFirst(wxT('\t')));
+#endif
 
-    UINT id = GetRealId();
-    UINT flagsOld = ::GetMenuState(hMenu, id, MF_BYCOMMAND);
-    if ( flagsOld == 0xFFFFFFFF )
+    // the item can be not attached to any menu yet and SetItemLabel() is still
+    // valid to call in this case and should do nothing else
+    if ( !m_parentMenu )
+        return;
+
+#if wxUSE_ACCEL
+    m_parentMenu->UpdateAccel(this);
+#endif // wxUSE_ACCEL
+
+    const UINT id = GetMSWId();
+    HMENU hMenu = GetHMenuOf(m_parentMenu);
+    if ( !hMenu || ::GetMenuState(hMenu, id, MF_BYCOMMAND) == (UINT)-1 )
+        return;
+
+#if wxUSE_OWNER_DRAWN
+    if ( IsOwnerDrawn() )
     {
-        wxLogLastError("GetMenuState");
+        // we don't need to do anything for owner drawn items, they will redraw
+        // themselves using the new text the next time they're displayed
+        return;
     }
+#endif // owner drawn
+
+    // update the text of the native menu item
+    WinStruct<MENUITEMINFO> info;
+
+    // surprisingly, calling SetMenuItemInfo() with just MIIM_STRING doesn't
+    // work as it resets the menu bitmap, so we need to first get the old item
+    // state and then modify it
+    const bool isLaterThanWin95 = wxGetWinVersion() > wxWinVersion_95;
+    info.fMask = MIIM_STATE |
+                 MIIM_ID |
+                 MIIM_SUBMENU |
+                 MIIM_CHECKMARKS |
+                 MIIM_DATA;
+    if ( isLaterThanWin95 )
+        info.fMask |= MIIM_BITMAP | MIIM_FTYPE;
     else
+        info.fMask |= MIIM_TYPE;
+    if ( !::GetMenuItemInfo(hMenu, id, FALSE, &info) )
     {
-        if ( IsSubMenu() )
-        {
-            // high byte contains the number of items in a submenu for submenus
-            flagsOld &= 0xFF;
-            flagsOld |= MF_POPUP;
-        }
-
-        LPCSTR data;
-#if wxUSE_OWNER_DRAWN
-        if ( IsOwnerDrawn() )
-        {
-            flagsOld |= MF_OWNERDRAW;
-            data = (LPCSTR)this;
-        }
-        else
-#endif  //owner drawn
-        {
-            flagsOld |= MF_STRING;
-            data = strName;
-        }
+        wxLogLastError(wxT("GetMenuItemInfo"));
+        return;
+    }
 
-        if ( ::ModifyMenu(hMenu, id,
-                          MF_BYCOMMAND | flagsOld,
-                          id, data) == 0xFFFFFFFF )
-        {
-            wxLogLastError("ModifyMenu");
-        }
+    if ( isLaterThanWin95 )
+        info.fMask |= MIIM_STRING;
+    //else: MIIM_TYPE already specified
+    info.dwTypeData = (LPTSTR)m_text.wx_str();
+    info.cch = m_text.length();
+    if ( !::SetMenuItemInfo(hMenu, id, FALSE, &info) )
+    {
+        wxLogLastError(wxT("SetMenuItemInfo"));
     }
 }
 
+void wxMenuItem::SetCheckable(bool checkable)
+{
+    wxMenuItemBase::SetCheckable(checkable);
+    OWNER_DRAWN_ONLY( wxOwnerDrawn::SetCheckable(checkable) );
+}
+
+// ----------------------------------------------------------------------------
+// wxMenuItemBase
+// ----------------------------------------------------------------------------
+
+wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu,
+                                int id,
+                                const wxString& name,
+                                const wxString& help,
+                                wxItemKind kind,
+                                wxMenu *subMenu)
+{
+    return new wxMenuItem(parentMenu, id, name, help, kind, subMenu);
+}
+
+#endif // wxUSE_MENUS