src/msw/menuitem.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        menuitem.cpp
   3 // Purpose:     wxMenuItem implementation
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     11.11.97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "menuitem.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/menu.h"
  25 #include "wx/font.h"
  26 #include "wx/bitmap.h"
  27 #include "wx/settings.h"
  28 #include "wx/font.h"
  29 #endif
  30
  31 #include "wx/ownerdrw.h"
  32 #include "wx/menuitem.h"
  33
  34 #include <windows.h>
  35
  36 // ============================================================================
  37 // implementation
  38 // ============================================================================
  39
  40 // ----------------------------------------------------------------------------
  41 // dynamic classes implementation
  42 // ----------------------------------------------------------------------------
  43
  44 #if     !defined(USE_SHARED_LIBRARY) || !USE_SHARED_LIBRARY
  45 #if wxUSE_OWNER_DRAWN
  46   IMPLEMENT_DYNAMIC_CLASS2(wxMenuItem, wxObject, wxOwnerDrawn)
  47 #else   //!USE_OWNER_DRAWN
  48   IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject)
  49 #endif  //USE_OWNER_DRAWN
  50
  51 #endif  //USE_SHARED_LIBRARY
  52
  53 // ----------------------------------------------------------------------------
  54 // wxMenuItem
  55 // ----------------------------------------------------------------------------
  56
  57 // ctor & dtor
  58 // -----------
  59
  60 wxMenuItem::wxMenuItem(wxMenu *pParentMenu, int id,
  61                        const wxString& strName, const wxString& strHelp,
  62                        bool bCheckable,
  63                        wxMenu *pSubMenu) :
  64 #if wxUSE_OWNER_DRAWN
  65                         wxOwnerDrawn(strName, bCheckable),
  66 #else   //no owner drawn support
  67                         m_bCheckable(bCheckable),
  68                         m_strName(strName),
  69 #endif  //owner drawn
  70                         m_strHelp(strHelp)
  71 {
  72   wxASSERT( pParentMenu != NULL );
  73
  74 #if  wxUSE_OWNER_DRAWN
  75     // set default menu colors
  76     #define SYS_COLOR(c) (wxSystemSettings::GetSystemColour(wxSYS_COLOUR_##c))
  77
  78     SetTextColour(SYS_COLOR(MENUTEXT));
  79     SetBackgroundColour(SYS_COLOR(MENU));
  80
  81     // we don't want normal items be owner-drawn
  82     ResetOwnerDrawn();
  83
  84     #undef  SYS_COLOR
  85 #endif
  86
  87   m_pParentMenu = pParentMenu;
  88   m_pSubMenu    = pSubMenu;
  89   m_idItem      = id;
  90   m_bEnabled    = TRUE;
  91 }
  92
  93 wxMenuItem::~wxMenuItem()
  94 {
  95 }
  96
  97 // misc
  98 // ----
  99
 100 // delete the sub menu
 101 void wxMenuItem::DeleteSubMenu()
 102 {
 103   wxASSERT( m_pSubMenu != NULL );
 104
 105   delete m_pSubMenu;
 106   m_pSubMenu = NULL;
 107 }
 108
 109 // change item state
 110 // -----------------
 111
 112 void wxMenuItem::Enable(bool bDoEnable)
 113 {
 114   if ( m_bEnabled != bDoEnable ) {
 115     if ( m_pSubMenu == NULL ) {     // normal menu item
 116       EnableMenuItem((HMENU)m_pParentMenu->GetHMenu(), m_idItem,
 117                      MF_BYCOMMAND | (bDoEnable ? MF_ENABLED: MF_GRAYED));
 118     }
 119     else                            // submenu
 120     {
 121       wxMenu *father = m_pSubMenu->m_topLevelMenu ;
 122       wxNode *node = father->m_menuItems.First() ;
 123       int i = 0 ;
 124       while (node) {
 125         wxMenuItem *matched = (wxMenuItem*)node->Data();
 126         if ( matched == this)
 127           break;
 128         i++;
 129         node = node->Next();
 130       }
 131       EnableMenuItem((HMENU)father->m_savehMenu, i,
 132                      MF_BYPOSITION | (bDoEnable ? MF_ENABLED: MF_GRAYED));
 133     }
 134
 135     m_bEnabled = bDoEnable;
 136   }
 137 }
 138
 139 void wxMenuItem::Check(bool bDoCheck)
 140 {
 141   wxCHECK_RET( IsCheckable(), "only checkable items may be checked" );
 142
 143   if ( m_bChecked != bDoCheck ) {
 144     CheckMenuItem((HMENU)m_pParentMenu->GetHMenu(), m_idItem,
 145                   MF_BYCOMMAND | (bDoCheck ? MF_CHECKED : MF_UNCHECKED));
 146
 147     m_bChecked = bDoCheck;
 148   }
 149 }