src/os2/tooltip.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/tooltip.cpp
   3 // Purpose:     wxToolTip class implementation for MSW
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/17/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/wxprec.h"
  21
  22 #ifndef WX_PRECOMP
  23     #include "wx/wx.h"
  24 #endif
  25
  26 #if wxUSE_TOOLTIPS
  27
  28 #include "wx/tooltip.h"
  29 #include "wx/os2/private.h"
  30
  31 // ----------------------------------------------------------------------------
  32 // global variables
  33 // ----------------------------------------------------------------------------
  34
  35 // the tooltip parent window
  36 WXHWND wxToolTip::hwndTT = (WXHWND)NULL;
  37
  38 // ----------------------------------------------------------------------------
  39 // private classes
  40 // ----------------------------------------------------------------------------
  41
  42
  43 // a simple wrapper around TOOLINFO Win32 structure
  44 class wxToolInfo // define a TOOLINFO for OS/2 here : public TOOLINFO
  45 {
  46 public:
  47     wxToolInfo(wxWindow *win)
  48     {
  49         // initialize all members
  50 //        ::ZeroMemory(this, sizeof(TOOLINFO));
  51
  52         cbSize = sizeof(this);
  53         uFlags = 0; // TTF_IDISHWND;
  54         uId = (UINT)win->GetHWND();
  55     }
  56     size_t        cbSize;
  57     ULONG         uFlags;
  58     UINT          uId;
  59     HWND          hwnd;
  60     char*         lpszText;
  61 };
  62
  63 // ----------------------------------------------------------------------------
  64 // private functions
  65 // ----------------------------------------------------------------------------
  66
  67 // send a message to the tooltip control
  68 inline MRESULT SendTooltipMessage(WXHWND hwnd,
  69                                   UINT msg,
  70                                   MPARAM wParam,
  71                                   MPARAM lParam)
  72 {
  73 //    return hwnd ? ::SendMessage((HWND)hwnd, msg, wParam, (MPARAM)lParam)
  74 //                : 0;
  75     return (MRESULT)0;
  76 }
  77
  78 // send a message to all existing tooltip controls
  79 static void SendTooltipMessageToAll(WXHWND hwnd,
  80                                     UINT msg,
  81                                     MPARAM wParam,
  82                                     MPARAM lParam)
  83 {
  84    if ( hwnd )
  85      (void)SendTooltipMessage((WXHWND)hwnd, msg, wParam, lParam);
  86 }
  87
  88 // ============================================================================
  89 // implementation
  90 // ============================================================================
  91
  92 // ----------------------------------------------------------------------------
  93 // static functions
  94 // ----------------------------------------------------------------------------
  95
  96 void wxToolTip::Enable(bool flag)
  97 {
  98 //    SendTooltipMessageToAll((WXHWND)hwndTT,TTM_ACTIVATE, flag, 0);
  99 }
 100
 101 void wxToolTip::SetDelay(long milliseconds)
 102 {
 103 //    SendTooltipMessageToAll((WXHWND)hwndTT,TTM_SETDELAYTIME, TTDT_INITIAL, milliseconds);
 104 }
 105
 106 // ---------------------------------------------------------------------------
 107 // implementation helpers
 108 // ---------------------------------------------------------------------------
 109
 110 // create the tooltip ctrl for our parent frame if it doesn't exist yet
 111 WXHWND wxToolTip::GetToolTipCtrl()
 112 {
 113 // TODO:
 114 /*
 115     if ( !hwndTT )
 116     {
 117         hwndTT = (WXHWND)::CreateWindow(TOOLTIPS_CLASS,
 118                                 (LPSTR)NULL,
 119                                 TTS_ALWAYSTIP,
 120                                 CW_USEDEFAULT, CW_USEDEFAULT,
 121                                 CW_USEDEFAULT, CW_USEDEFAULT,
 122                                 NULL, (HMENU)NULL,
 123                                 wxGetInstance(),
 124                                 NULL);
 125        if ( hwndTT )
 126        {
 127            SetWindowPos((HWND)hwndTT, HWND_TOPMOST, 0, 0, 0, 0,
 128                         SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
 129        }
 130
 131     }
 132     return (WXHWND)hwndTT;
 133 */
 134     return (WXHWND)0;
 135 }
 136
 137 void wxToolTip::RelayEvent(WXMSG *msg)
 138 {
 139 //  (void)SendTooltipMessage(GetToolTipCtrl(), TTM_RELAYEVENT, 0, msg);
 140 }
 141
 142 // ----------------------------------------------------------------------------
 143 // ctor & dtor
 144 // ----------------------------------------------------------------------------
 145
 146 wxToolTip::wxToolTip(const wxString &tip)
 147          : m_text(tip)
 148 {
 149     m_window = NULL;
 150 }
 151
 152 wxToolTip::~wxToolTip()
 153 {
 154     // there is no need to Remove() this tool - it will be done automatically
 155     // anyhow
 156 }
 157
 158 // ----------------------------------------------------------------------------
 159 // others
 160 // ----------------------------------------------------------------------------
 161
 162 void wxToolTip::Remove()
 163 {
 164     // remove this tool from the tooltip control
 165     if ( m_window )
 166     {
 167         wxToolInfo ti(m_window);
 168 //      (void)SendTooltipMessage(GetToolTipCtrl(), TTM_DELTOOL, 0, &ti);
 169     }
 170 }
 171
 172 void wxToolTip::SetWindow(wxWindow *win)
 173 {
 174     Remove();
 175
 176     m_window = win;
 177
 178     if ( m_window )
 179     {
 180         wxToolInfo ti(m_window);
 181
 182         // as we store our text anyhow, it seems useless to waste system memory
 183         // by asking the tooltip ctrl to remember it too - instead it will send
 184         // us TTN_NEEDTEXT (via WM_NOTIFY) when it is about to be shown
 185         ti.hwnd = (HWND)m_window->GetHWND();
 186 //        ti.lpszText = LPSTR_TEXTCALLBACK;
 187         // instead of: ti.lpszText = (char *)m_text.c_str();
 188
 189 // TODO:
 190 /*
 191         if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, 0, &ti) )
 192         {
 193             wxLogSysError(_("Failed to create the tooltip '%s'"),
 194                           m_text.c_str());
 195         }
 196 */
 197     }
 198 }
 199
 200 void wxToolTip::SetTip(const wxString& tip)
 201 {
 202     m_text = tip;
 203
 204     if ( m_window )
 205     {
 206         // update it immediately
 207         wxToolInfo ti(m_window);
 208         ti.lpszText = (wxChar *)m_text.c_str();
 209
 210 //      (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti);
 211     }
 212 }
 213
 214 #endif // wxUSE_TOOLTIPS