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