X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3a19e16d18542ec645271612d3e0170831cbf0eb..696e1ea0b7cee1394693a0e507bbf49c9863952b:/src/msw/tooltip.cpp?ds=inline diff --git a/src/msw/tooltip.cpp b/src/msw/tooltip.cpp index 73c0165697..0bac53472b 100644 --- a/src/msw/tooltip.cpp +++ b/src/msw/tooltip.cpp @@ -27,29 +27,62 @@ #include "wx/wx.h" #endif +#if wxUSE_TOOLTIPS + #include "wx/tooltip.h" #include "wx/msw/private.h" -#include +#if defined(__WIN95__) && !defined(__GNUWIN32_OLD__) + #include +#endif + +// VZ: normally, the trick with subclassing the tooltip control and processing +// TTM_WINDOWFROMPOINT should work but, somehow, it doesn't. I leave the +// code here for now (but it's not compiled) in case we need it later. +// +// For now, instead of this, we just add all radiobox buttons to the +// tooltip control as well (see SetWindow) - this is probably less +// efficient, but it works. +#define wxUSE_TTM_WINDOWFROMPOINT 0 + +// ---------------------------------------------------------------------------- +// global variables +// ---------------------------------------------------------------------------- + +// the tooltip parent window +WXHWND wxToolTip::ms_hwndTT = (WXHWND)NULL; + +#if wxUSE_TTM_WINDOWFROMPOINT + +// the tooltip window proc +static WNDPROC gs_wndprocToolTip = (WNDPROC)NULL; + +#endif // wxUSE_TTM_WINDOWFROMPOINT // ---------------------------------------------------------------------------- // private classes // ---------------------------------------------------------------------------- // a simple wrapper around TOOLINFO Win32 structure +#ifdef __VISUALC__ + #pragma warning( disable : 4097 ) // we inherit from a typedef - so what? +#endif class wxToolInfo : public TOOLINFO { public: - wxToolInfo(wxWindow *win) + wxToolInfo(HWND hwnd) { // initialize all members ::ZeroMemory(this, sizeof(TOOLINFO)); cbSize = sizeof(TOOLINFO); uFlags = TTF_IDISHWND; - uId = (UINT)win->GetHWND(); + uId = (UINT)hwnd; } }; +#ifdef __VISUALC__ + #pragma warning( default : 4097 ) +#endif // ---------------------------------------------------------------------------- // private functions @@ -65,65 +98,113 @@ inline LRESULT SendTooltipMessage(WXHWND hwnd, : 0; } +// send a message to all existing tooltip controls +static void SendTooltipMessageToAll(WXHWND hwnd, + UINT msg, + WPARAM wParam, + LPARAM lParam) +{ + (void)SendTooltipMessage((WXHWND)hwnd, msg, wParam, (void *)lParam); +} + // ============================================================================ // implementation // ============================================================================ +#if wxUSE_TTM_WINDOWFROMPOINT + // ---------------------------------------------------------------------------- -// "semiglobal" functions - these methods work with the tooltip control which -// is shared among all the wxToolTips of the same frame +// window proc for our tooltip control // ---------------------------------------------------------------------------- -// create the tooltip ctrl for our parent frame if it doesn't exist yet -WXHWND wxToolTip::GetToolTipCtrl() +LRESULT APIENTRY wxToolTipWndProc(HWND hwndTT, + UINT msg, + WPARAM wParam, + LPARAM lParam) { - wxWindow *parent = m_window; - while ( parent && !parent->IsKindOf(CLASSINFO(wxFrame)) ) + if ( msg == TTM_WINDOWFROMPOINT ) { - parent = parent->GetParent(); - } - - wxCHECK_MSG( parent, 0, "can't create tooltip control outside a frame" ); + LPPOINT ppt = (LPPOINT)lParam; + // is the window under control a wxWindow? + HWND hwnd = ::WindowFromPoint(*ppt); - wxFrame *frame = (wxFrame *)parent; - HWND hwndTT = (HWND)frame->GetToolTipCtrl(); - if ( !hwndTT ) - { - hwndTT = ::CreateWindow(TOOLTIPS_CLASS, - (LPSTR)NULL, - TTS_ALWAYSTIP, - CW_USEDEFAULT, CW_USEDEFAULT, - CW_USEDEFAULT, CW_USEDEFAULT, - (HWND)frame->GetHWND(), (HMENU)NULL, - wxGetInstance(), NULL); - - if ( hwndTT ) + // return a HWND correspondign to wxWindow because only wxWindows are + // associated with tooltips using TTM_ADDTOOL + while ( hwnd && !wxFindWinFromHandle((WXHWND)hwnd) ) { - frame->SetToolTipCtrl((WXHWND)hwndTT); + hwnd = ::GetParent(hwnd); } - else + + if ( hwnd ) { - wxLogSysError(_("Can not create tooltip control")); + // modify the point too! + RECT rect; + GetWindowRect(hwnd, &rect); + + ppt->x = rect.left; + ppt->y = rect.top; + + return (LRESULT)hwnd; } } - return (WXHWND)hwndTT; + return ::CallWindowProc(gs_wndprocToolTip, hwndTT, msg, wParam, lParam); } +#endif // wxUSE_TTM_WINDOWFROMPOINT + +// ---------------------------------------------------------------------------- +// static functions +// ---------------------------------------------------------------------------- + void wxToolTip::Enable(bool flag) { - (void)SendTooltipMessage(GetToolTipCtrl(), TTM_ACTIVATE, flag, 0); + SendTooltipMessageToAll(ms_hwndTT, TTM_ACTIVATE, flag, 0); } -void wxToolTip::RelayEvent(WXMSG *msg) +void wxToolTip::SetDelay(long milliseconds) { - (void)SendTooltipMessage(GetToolTipCtrl(), TTM_RELAYEVENT, 0, msg); + SendTooltipMessageToAll(ms_hwndTT, TTM_SETDELAYTIME, + TTDT_INITIAL, milliseconds); } -void wxToolTip::SetDelay(long milliseconds) +// --------------------------------------------------------------------------- +// implementation helpers +// --------------------------------------------------------------------------- + +// create the tooltip ctrl for our parent frame if it doesn't exist yet +WXHWND wxToolTip::GetToolTipCtrl() { - (void)SendTooltipMessage(GetToolTipCtrl(), TTM_SETDELAYTIME, - TTDT_INITIAL, (void *)milliseconds); + if ( !ms_hwndTT ) + { + ms_hwndTT = (WXHWND)::CreateWindow(TOOLTIPS_CLASS, + (LPSTR)NULL, + TTS_ALWAYSTIP, + CW_USEDEFAULT, CW_USEDEFAULT, + CW_USEDEFAULT, CW_USEDEFAULT, + NULL, (HMENU)NULL, + wxGetInstance(), + NULL); + if ( ms_hwndTT ) + { + HWND hwnd = (HWND)ms_hwndTT; + SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0, + SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE); + +#if wxUSE_TTM_WINDOWFROMPOINT + // subclass the newly created control + gs_wndprocToolTip = (WNDPROC)::GetWindowLong(hwnd, GWL_WNDPROC); + ::SetWindowLong(hwnd, GWL_WNDPROC, (long)wxToolTipWndProc); +#endif // wxUSE_TTM_WINDOWFROMPOINT + } + } + + return ms_hwndTT; +} + +void wxToolTip::RelayEvent(WXMSG *msg) +{ + (void)SendTooltipMessage(GetToolTipCtrl(), TTM_RELAYEVENT, 0, msg); } // ---------------------------------------------------------------------------- @@ -151,32 +232,57 @@ void wxToolTip::Remove() // remove this tool from the tooltip control if ( m_window ) { - wxToolInfo ti(m_window); + wxToolInfo ti(GetHwndOf(m_window)); (void)SendTooltipMessage(GetToolTipCtrl(), TTM_DELTOOL, 0, &ti); } } +void wxToolTip::Add(WXHWND hWnd) +{ + HWND hwnd = (HWND)hWnd; + + wxToolInfo ti(hwnd); + + // as we store our text anyhow, it seems useless to waste system memory + // by asking the tooltip ctrl to remember it too - instead it will send + // us TTN_NEEDTEXT (via WM_NOTIFY) when it is about to be shown + ti.hwnd = hwnd; + ti.lpszText = LPSTR_TEXTCALLBACK; + // instead of: ti.lpszText = (char *)m_text.c_str(); + + if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, 0, &ti) ) + { + wxLogSysError(_("Failed to create the tooltip '%s'"), + m_text.c_str()); + } +} + void wxToolTip::SetWindow(wxWindow *win) { Remove(); m_window = win; + // add the window itself if ( m_window ) { - wxToolInfo ti(m_window); - - // as we store our text anyhow, it seems useless to waste system memory - // by asking the tooltip ctrl to remember it too - instead it will send - // us TTN_NEEDTEXT (via WM_NOTIFY) when it is about to be shown - ti.hwnd = (HWND)m_window->GetHWND(); - ti.lpszText = LPSTR_TEXTCALLBACK; - // instead of: ti.lpszText = (char *)m_text.c_str(); + Add(m_window->GetHWND()); + } - if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, 0, &ti) ) + // and all of its subcontrols (e.g. radiobuttons in a radiobox) as well + wxControl *control = wxDynamicCast(m_window, wxControl); + if ( control ) + { + size_t count = control->GetSubcontrols().GetCount(); + for ( size_t n = 0; n < count; n++ ) { - wxLogSysError(_("Failed to create the tooltip '%s'"), - m_text.c_str()); + wxWindowID id = control->GetSubcontrols()[n]; + HWND hwnd = GetDlgItem(GetHwndOf(m_window), id); + + if ( hwnd ) + { + Add((WXHWND)hwnd); + } } } } @@ -188,9 +294,11 @@ void wxToolTip::SetTip(const wxString& tip) if ( m_window ) { // update it immediately - wxToolInfo ti(m_window); - ti.lpszText = (char *)m_text.c_str(); + wxToolInfo ti(GetHwndOf(m_window)); + ti.lpszText = (wxChar *)m_text.c_str(); (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti); } } + +#endif // wxUSE_TOOLTIPS