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 // ============================================================================
  13 // headers & declarations
  14 // ============================================================================
  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 #endif
  26
  27 #include "wx/ownerdrw.h"
  28 #include "wx/menuitem.h"
  29
  30 #include <windows.h>
  31
  32 // ============================================================================
  33 // implementation
  34 // ============================================================================
  35
  36 // ----------------------------------------------------------------------------
  37 // dynamic classes implementation
  38 // ----------------------------------------------------------------------------
  39
  40 #if     !defined(USE_SHARED_LIBRARY) || !USE_SHARED_LIBRARY
  41 #if wxUSE_OWNER_DRAWN
  42   IMPLEMENT_DYNAMIC_CLASS2(wxMenuItem, wxObject, wxOwnerDrawn)
  43 #else   //!USE_OWNER_DRAWN
  44   IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject)
  45 #endif  //USE_OWNER_DRAWN
  46
  47 #endif  //USE_SHARED_LIBRARY
  48
  49 // ----------------------------------------------------------------------------
  50 // wxMenuItem
  51 // ----------------------------------------------------------------------------
  52
  53 // ctor & dtor
  54 // -----------
  55
  56 wxMenuItem::wxMenuItem(wxMenu *pParentMenu, int id,
  57                        const wxString& strName, const wxString& strHelp,
  58                        bool bCheckable,
  59                        wxMenu *pSubMenu) :
  60 #if wxUSE_OWNER_DRAWN
  61                         wxOwnerDrawn(strName, bCheckable),
  62 #else   //no owner drawn support
  63                         m_bCheckable(bCheckable),
  64                         m_strName(strName),
  65 #endif  //owner drawn
  66                         m_strHelp(strHelp)
  67 {
  68   wxASSERT( pParentMenu != NULL );
  69
  70 #if  wxUSE_OWNER_DRAWN
  71     // set default menu colors
  72     #define SYS_COLOR(c) (wxSystemSettings::GetSystemColour(wxSYS_COLOUR_##c))
  73
  74     SetTextColour(SYS_COLOR(MENUTEXT));
  75     SetBackgroundColour(SYS_COLOR(MENU));
  76
  77     // we don't want normal items be owner-drawn
  78     ResetOwnerDrawn();
  79
  80     #undef  SYS_COLOR
  81 #endif
  82
  83   m_pParentMenu = pParentMenu;
  84   m_pSubMenu    = pSubMenu;
  85   m_idItem      = id;
  86   m_bEnabled    = TRUE;
  87 }
  88
  89 wxMenuItem::~wxMenuItem()
  90 {
  91 }
  92
  93 // misc
  94 // ----
  95
  96 // delete the sub menu
  97 void wxMenuItem::DeleteSubMenu()
  98 {
  99   wxASSERT( m_pSubMenu != NULL );
 100
 101   delete m_pSubMenu;
 102   m_pSubMenu = NULL;
 103 }
 104
 105 // change item state
 106 // -----------------
 107
 108 void wxMenuItem::Enable(bool bDoEnable)
 109 {
 110   if ( m_bEnabled != bDoEnable ) {
 111     if ( m_pSubMenu == NULL ) {     // normal menu item
 112       EnableMenuItem((HMENU)m_pParentMenu->GetHMenu(), m_idItem,
 113                      MF_BYCOMMAND | (bDoEnable ? MF_ENABLED: MF_GRAYED));
 114     }
 115     else                            // submenu
 116     {
 117       wxMenu *father = m_pSubMenu->m_topLevelMenu ;
 118       wxNode *node = father->m_menuItems.First() ;
 119       int i = 0 ;
 120       while (node) {
 121         wxMenuItem *matched = (wxMenuItem*)node->Data();
 122         if ( matched == this)
 123           break;
 124         i++;
 125         node = node->Next();
 126       }
 127       EnableMenuItem((HMENU)father->m_savehMenu, i,
 128                      MF_BYPOSITION | (bDoEnable ? MF_ENABLED: MF_GRAYED));
 129     }
 130
 131     m_bEnabled = bDoEnable;
 132   }
 133 }
 134
 135 void wxMenuItem::Check(bool bDoCheck)
 136 {
 137   wxCHECK_RET( IsCheckable(), "only checkable items may be checked" );
 138
 139   if ( m_bChecked != bDoCheck ) {
 140     CheckMenuItem((HMENU)m_pParentMenu->GetHMenu(), m_idItem,
 141                   MF_BYCOMMAND | (bDoCheck ? MF_CHECKED : MF_UNCHECKED));
 142
 143     m_bChecked = bDoCheck;
 144   }
 145 }