src/msw/accel.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        accel.cpp
   3 // Purpose:     wxAcceleratorTable
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "accel.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/window.h"
  25 #endif
  26
  27 #include "wx/accel.h"
  28
  29 #if wxUSE_ACCEL
  30
  31 #include "wx/msw/private.h"
  32
  33 IMPLEMENT_DYNAMIC_CLASS(wxAcceleratorTable, wxObject)
  34
  35 class WXDLLEXPORT wxAcceleratorRefData: public wxObjectRefData
  36 {
  37     friend class WXDLLEXPORT wxAcceleratorTable;
  38 public:
  39     wxAcceleratorRefData();
  40     ~wxAcceleratorRefData();
  41
  42     inline HACCEL GetHACCEL() const { return m_hAccel; }
  43 protected:
  44     HACCEL      m_hAccel;
  45     bool        m_ok;
  46
  47     DECLARE_NO_COPY_CLASS(wxAcceleratorRefData)
  48 };
  49
  50 #define M_ACCELDATA ((wxAcceleratorRefData *)m_refData)
  51
  52 wxAcceleratorRefData::wxAcceleratorRefData()
  53 {
  54   m_ok = FALSE;
  55   m_hAccel = 0;
  56 }
  57
  58 wxAcceleratorRefData::~wxAcceleratorRefData()
  59 {
  60   if (m_hAccel)
  61   {
  62     // This function not available in WIN16
  63 #if !defined(__WIN16__)
  64     DestroyAcceleratorTable((HACCEL) m_hAccel);
  65 #endif
  66   }
  67   m_hAccel = 0 ;
  68 }
  69
  70 wxAcceleratorTable::wxAcceleratorTable()
  71 {
  72   m_refData = NULL;
  73 }
  74
  75 wxAcceleratorTable::~wxAcceleratorTable()
  76 {
  77 }
  78
  79 // Load from .rc resource
  80 wxAcceleratorTable::wxAcceleratorTable(const wxString& resource)
  81 {
  82     m_refData = new wxAcceleratorRefData;
  83
  84     HACCEL hAccel =
  85 #if defined(__WIN32__)
  86 #ifdef UNICODE
  87         ::LoadAcceleratorsW(wxGetInstance(), (const wxChar *)resource);
  88 #else
  89         ::LoadAcceleratorsA(wxGetInstance(), (const char *)resource);
  90 #endif
  91 #else
  92         ::LoadAccelerators(wxGetInstance(), (const wxChar *)resource);
  93 #endif
  94     M_ACCELDATA->m_hAccel = hAccel;
  95     M_ACCELDATA->m_ok = (hAccel != 0);
  96 }
  97
  98 extern int wxCharCodeWXToMSW(int id, bool *isVirtual);
  99
 100 // Create from an array
 101 #if !defined(__WIN16__)
 102 wxAcceleratorTable::wxAcceleratorTable(int n, const wxAcceleratorEntry entries[])
 103 {
 104     // Not available in WIN16
 105     m_refData = new wxAcceleratorRefData;
 106
 107     ACCEL* arr = new ACCEL[n];
 108     for ( int i = 0; i < n; i++ )
 109     {
 110         int flags = entries[i].GetFlags();
 111
 112         BYTE fVirt = 0;
 113         if ( flags & wxACCEL_ALT )
 114             fVirt |= FALT | FVIRTKEY;
 115         if ( flags & wxACCEL_SHIFT )
 116             fVirt |= FSHIFT | FVIRTKEY;
 117         if ( flags & wxACCEL_CTRL )
 118             fVirt |= FCONTROL | FVIRTKEY;
 119
 120         bool isVirtual;
 121
 122         WORD key = wxCharCodeWXToMSW(entries[i].GetKeyCode(), &isVirtual);
 123         if (isVirtual)
 124             fVirt |= FVIRTKEY;
 125
 126         arr[i].fVirt = fVirt;
 127         arr[i].key = key;
 128         arr[i].cmd = entries[i].GetCommand();
 129     }
 130
 131     M_ACCELDATA->m_hAccel = ::CreateAcceleratorTable(arr, n);
 132     delete[] arr;
 133
 134     M_ACCELDATA->m_ok = (M_ACCELDATA->m_hAccel != 0);
 135 }
 136 #else // Win16
 137 wxAcceleratorTable::wxAcceleratorTable(int WXUNUSED(n), const wxAcceleratorEntry WXUNUSED(entries)[])
 138 {
 139     // No, we simply gracefully degrade; we don't expect the
 140     // developer to pepper their code with #ifdefs just for this.
 141     // wxFAIL_MSG("not implemented");
 142 }
 143 #endif // Win32/16
 144
 145 bool wxAcceleratorTable::Ok() const
 146 {
 147     return (M_ACCELDATA && (M_ACCELDATA->m_ok));
 148 }
 149
 150 void wxAcceleratorTable::SetHACCEL(WXHACCEL hAccel)
 151 {
 152     if (!M_ACCELDATA)
 153         m_refData = new wxAcceleratorRefData;
 154
 155     M_ACCELDATA->m_hAccel = (HACCEL) hAccel;
 156 }
 157
 158 WXHACCEL wxAcceleratorTable::GetHACCEL() const
 159 {
 160     if (!M_ACCELDATA)
 161         return 0;
 162     return (WXHACCEL) M_ACCELDATA->m_hAccel;
 163 }
 164
 165 bool wxAcceleratorTable::Translate(wxWindow *window, WXMSG *wxmsg) const
 166 {
 167     MSG *msg = (MSG *)wxmsg;
 168     return Ok() && ::TranslateAccelerator(GetHwndOf(window), GetHaccel(), msg);
 169 }
 170
 171 #endif