| 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 |