X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d9317fd47263a9521466156d7bf0f7988000bf15..7e38638c3499c679f25ec0029931aad8e62e70d3:/src/msw/tooltip.cpp?ds=sidebyside diff --git a/src/msw/tooltip.cpp b/src/msw/tooltip.cpp index 2b6f2f5575..dd3fdd076b 100644 --- a/src/msw/tooltip.cpp +++ b/src/msw/tooltip.cpp @@ -1,12 +1,12 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: msw/tooltip.cpp +// Name: src/msw/tooltip.cpp // Purpose: wxToolTip class implementation for MSW // Author: Vadim Zeitlin // Modified by: // Created: 31.01.99 // RCS-ID: $Id$ // Copyright: (c) 1999 Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -23,27 +23,36 @@ #pragma hdrstop #endif -#ifndef WX_PRECOMP - #include "wx/wx.h" -#endif - #if wxUSE_TOOLTIPS #include "wx/tooltip.h" + +#ifndef WX_PRECOMP + #include "wx/msw/wrapcctl.h" // include "properly" + #include "wx/app.h" + #include "wx/control.h" +#endif + +#include "wx/tokenzr.h" #include "wx/msw/private.h" -#if defined(__WIN95__) && (!defined(__GNUWIN32__) || defined(__MINGW32__)) - #include +#ifndef TTTOOLINFO_V1_SIZE + #define TTTOOLINFO_V1_SIZE 0x28 +#endif + +#ifndef TTF_TRANSPARENT + #define TTF_TRANSPARENT 0x0100 #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 1 +// For now I use an ugly workaround and process TTN_NEEDTEXT directly in +// radio button wnd proc - fixing TTM_WINDOWFROMPOINT code would be nice +// because it would then work for all controls, not only radioboxes but for +// now I don't understand what's wrong with it... +#define wxUSE_TTM_WINDOWFROMPOINT 0 // ---------------------------------------------------------------------------- // global variables @@ -71,26 +80,32 @@ static WNDPROC gs_wndprocToolTip = (WNDPROC)NULL; class wxToolInfo : public TOOLINFO { public: - wxToolInfo(HWND hwnd) + wxToolInfo(HWND hwndOwner) { // initialize all members ::ZeroMemory(this, sizeof(TOOLINFO)); // the structure TOOLINFO has been extended with a 4 byte field in - // version 4.70 of comctl32.dll and if we compile on a newer machine - // but run on one with the old version of comctl32, nothing will work - // because the library will detect that we rely on a more recent - // version of it. So we always use the old size - if we ever start - // using our lParam member, we'd have to check for comctl32 version - // during run-time -#if defined(_WIN32_IE) && (_WIN32_IE >= 0x0300) - cbSize = sizeof(TOOLINFO) - sizeof(LPARAM); -#else // old headers - cbSize = sizeof(TOOLINFO); -#endif // compile-time comctl32.dll version + // version 4.70 of comctl32.dll and another one in 5.01 but we don't + // use these extended fields so use the old struct size to ensure that + // the tooltips work on old (Windows 95) systems too + cbSize = TTTOOLINFO_V1_SIZE; + hwnd = hwndOwner; uFlags = TTF_IDISHWND; - uId = (UINT)hwnd; + + // we use TTF_TRANSPARENT to fix a problem which arises at least with + // the text controls but may presumably happen with other controls + // which display the tooltip at mouse position: it can start flashing + // then as the control gets "focus lost" events and dismisses the + // tooltip which then reappears because mouse remains hovering over the + // control, see SF patch 1821229 + if ( wxApp::GetComCtl32Version() >= 470 ) + { + uFlags |= TTF_TRANSPARENT; + } + + uId = (UINT_PTR)hwndOwner; } }; @@ -102,23 +117,20 @@ public: // private functions // ---------------------------------------------------------------------------- -// send a message to the tooltip control -inline LRESULT SendTooltipMessage(WXHWND hwnd, - UINT msg, - WPARAM wParam, - void *lParam) +// send a message to the tooltip control if it exists +// +// NB: wParam is always 0 for the TTM_XXX messages we use +static inline LRESULT SendTooltipMessage(WXHWND hwnd, UINT msg, void *lParam) { - return hwnd ? ::SendMessage((HWND)hwnd, msg, wParam, (LPARAM)lParam) - : 0; + return hwnd ? ::SendMessage((HWND)hwnd, msg, 0, (LPARAM)lParam) : 0; } // send a message to all existing tooltip controls -static void SendTooltipMessageToAll(WXHWND hwnd, - UINT msg, - WPARAM wParam, - LPARAM lParam) +static inline void +SendTooltipMessageToAll(WXHWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { - (void)SendTooltipMessage((WXHWND)hwnd, msg, wParam, (void *)lParam); + if ( hwnd ) + ::SendMessage((HWND)hwnd, msg, wParam, lParam); } // ============================================================================ @@ -139,30 +151,39 @@ LRESULT APIENTRY wxToolTipWndProc(HWND hwndTT, if ( msg == TTM_WINDOWFROMPOINT ) { LPPOINT ppt = (LPPOINT)lParam; - // is the window under control a wxWindow? + + // the window on which event occurred HWND hwnd = ::WindowFromPoint(*ppt); - // return a HWND correspondign to wxWindow because only wxWindows are + OutputDebugString("TTM_WINDOWFROMPOINT: "); + OutputDebugString(wxString::Format("0x%08x => ", hwnd)); + + // return a HWND corresponding to a wxWindow because only wxWidgets are // associated with tooltips using TTM_ADDTOOL - while ( hwnd && !wxFindWinFromHandle((WXHWND)hwnd) ) - { - hwnd = ::GetParent(hwnd); - } + wxWindow *win = wxGetWindowFromHWND((WXHWND)hwnd); - if ( hwnd ) + if ( win ) { + hwnd = GetHwndOf(win); + OutputDebugString(wxString::Format("0x%08x\r\n", hwnd)); + +#if 0 // modify the point too! RECT rect; GetWindowRect(hwnd, &rect); - ppt->x = rect.left; - ppt->y = rect.top; - + ppt->x = (rect.right - rect.left) / 2; + ppt->y = (rect.bottom - rect.top) / 2; +#endif // 0 return (LRESULT)hwnd; } + else + { + OutputDebugString("no window\r\n"); + } } - return ::CallWindowProc(gs_wndprocToolTip, hwndTT, msg, wParam, lParam); + return ::CallWindowProc(CASTWNDPROC gs_wndprocToolTip, hwndTT, msg, wParam, lParam); } #endif // wxUSE_TTM_WINDOWFROMPOINT @@ -182,23 +203,45 @@ void wxToolTip::SetDelay(long milliseconds) TTDT_INITIAL, milliseconds); } +void wxToolTip::SetAutoPop(long milliseconds) +{ + SendTooltipMessageToAll(ms_hwndTT, TTM_SETDELAYTIME, + TTDT_AUTOPOP, milliseconds); +} + +void wxToolTip::SetReshow(long milliseconds) +{ + SendTooltipMessageToAll(ms_hwndTT, TTM_SETDELAYTIME, + TTDT_RESHOW, milliseconds); +} + // --------------------------------------------------------------------------- // implementation helpers // --------------------------------------------------------------------------- // create the tooltip ctrl for our parent frame if it doesn't exist yet +/* static */ WXHWND wxToolTip::GetToolTipCtrl() { 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); + WXDWORD exflags = 0; + if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft ) + { + exflags |= WS_EX_LAYOUTRTL; + } + + // we want to show the tooltips always (even when the window is not + // active) and we don't want to strip "&"s from them + ms_hwndTT = (WXHWND)::CreateWindowEx(exflags, + TOOLTIPS_CLASS, + (LPCTSTR)NULL, + TTS_ALWAYSTIP | TTS_NOPREFIX, + CW_USEDEFAULT, CW_USEDEFAULT, + CW_USEDEFAULT, CW_USEDEFAULT, + NULL, (HMENU)NULL, + wxGetInstance(), + NULL); if ( ms_hwndTT ) { HWND hwnd = (HWND)ms_hwndTT; @@ -207,8 +250,7 @@ WXHWND wxToolTip::GetToolTipCtrl() #if wxUSE_TTM_WINDOWFROMPOINT // subclass the newly created control - gs_wndprocToolTip = (WNDPROC)::GetWindowLong(hwnd, GWL_WNDPROC); - ::SetWindowLong(hwnd, GWL_WNDPROC, (long)wxToolTipWndProc); + gs_wndprocToolTip = wxSetWindowProc(hwnd, wxToolTipWndProc); #endif // wxUSE_TTM_WINDOWFROMPOINT } } @@ -216,15 +258,18 @@ WXHWND wxToolTip::GetToolTipCtrl() return ms_hwndTT; } +/* static */ void wxToolTip::RelayEvent(WXMSG *msg) { - (void)SendTooltipMessage(GetToolTipCtrl(), TTM_RELAYEVENT, 0, msg); + (void)SendTooltipMessage(GetToolTipCtrl(), TTM_RELAYEVENT, msg); } // ---------------------------------------------------------------------------- // ctor & dtor // ---------------------------------------------------------------------------- +IMPLEMENT_ABSTRACT_CLASS(wxToolTip, wxObject) + wxToolTip::wxToolTip(const wxString &tip) : m_text(tip) { @@ -233,21 +278,27 @@ wxToolTip::wxToolTip(const wxString &tip) wxToolTip::~wxToolTip() { - // there is no need to Remove() this tool - it will be done automatically - // anyhow + // the tooltip has to be removed before deleting. Otherwise, if it is visible + // while being deleted, there will be a delay before it goes away. + Remove(); } // ---------------------------------------------------------------------------- // others // ---------------------------------------------------------------------------- +void wxToolTip::Remove(WXHWND hWnd) +{ + wxToolInfo ti((HWND)hWnd); + (void)SendTooltipMessage(GetToolTipCtrl(), TTM_DELTOOL, &ti); +} + void wxToolTip::Remove() { // remove this tool from the tooltip control if ( m_window ) { - wxToolInfo ti(GetHwndOf(m_window)); - (void)SendTooltipMessage(GetToolTipCtrl(), TTM_DELTOOL, 0, &ti); + Remove(m_window->GetHWND()); } } @@ -257,17 +308,94 @@ void wxToolTip::Add(WXHWND 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 + // another possibility would be to specify LPSTR_TEXTCALLBACK here as we + // store the tooltip text ourselves anyhow, and provide it in response to + // TTN_NEEDTEXT (sent via WM_NOTIFY), but then we would be limited to 79 + // character tooltips as this is the size of the szText buffer in + // NMTTDISPINFO struct -- and setting the tooltip here we can have tooltips + // of any length ti.hwnd = hwnd; - ti.lpszText = LPSTR_TEXTCALLBACK; - // instead of: ti.lpszText = (char *)m_text.c_str(); + ti.lpszText = (wxChar *)m_text.wx_str(); // const_cast - if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, 0, &ti) ) + if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, &ti) ) { wxLogDebug(_T("Failed to create the tooltip '%s'"), m_text.c_str()); } + else + { + // check for multiline toopltip + int index = m_text.Find(_T('\n')); + + if ( index != wxNOT_FOUND ) + { +#ifdef TTM_SETMAXTIPWIDTH + if ( wxApp::GetComCtl32Version() >= 470 ) + { + // use TTM_SETMAXTIPWIDTH to make tooltip multiline using the + // extent of its first line as max value + HFONT hfont = (HFONT) + SendTooltipMessage(GetToolTipCtrl(), WM_GETFONT, 0); + + if ( !hfont ) + { + hfont = (HFONT)GetStockObject(DEFAULT_GUI_FONT); + if ( !hfont ) + { + wxLogLastError(wxT("GetStockObject(DEFAULT_GUI_FONT)")); + } + } + + MemoryHDC hdc; + if ( !hdc ) + { + wxLogLastError(wxT("CreateCompatibleDC(NULL)")); + } + + if ( !SelectObject(hdc, hfont) ) + { + wxLogLastError(wxT("SelectObject(hfont)")); + } + + // find the width of the widest line + int max = 0; + wxStringTokenizer tokenizer(m_text, _T("\n")); + wxString token = tokenizer.GetNextToken(); + while (token.length()) + { + SIZE sz; + if ( !::GetTextExtentPoint32(hdc, token.wx_str(), token.length(), &sz) ) + { + wxLogLastError(wxT("GetTextExtentPoint32")); + } + if ( sz.cx > max ) + max = sz.cx; + + token = tokenizer.GetNextToken(); + } + + // only set a new width if it is bigger than the current setting + if ( max > SendTooltipMessage(GetToolTipCtrl(), + TTM_GETMAXTIPWIDTH, 0) ) + { + SendTooltipMessage(GetToolTipCtrl(), TTM_SETMAXTIPWIDTH, + wxUIntToPtr(max)); + } + } + else +#endif // comctl32.dll >= 4.70 + { + // replace the '\n's with spaces because otherwise they appear as + // unprintable characters in the tooltip string + m_text.Replace(_T("\n"), _T(" ")); + ti.lpszText = (wxChar *)m_text.wx_str(); // const_cast + + if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, &ti) ) + { + wxLogDebug(_T("Failed to create the tooltip '%s'"), m_text.c_str()); + } + } + } + } } void wxToolTip::SetWindow(wxWindow *win) @@ -281,25 +409,32 @@ void wxToolTip::SetWindow(wxWindow *win) { Add(m_window->GetHWND()); } - -#if 1 //!wxUSE_TTM_WINDOWFROMPOINT - // and all of its subcontrols (e.g. radiobuttons in a radiobox) as well +#if !defined(__WXUNIVERSAL__) + // and all of its subcontrols (e.g. radio buttons in a radiobox) as well wxControl *control = wxDynamicCast(m_window, wxControl); if ( control ) { - size_t count = control->GetSubcontrols().GetCount(); + const wxArrayLong& subcontrols = control->GetSubcontrols(); + size_t count = subcontrols.GetCount(); for ( size_t n = 0; n < count; n++ ) { - wxWindowID id = control->GetSubcontrols()[n]; + int id = subcontrols[n]; HWND hwnd = GetDlgItem(GetHwndOf(m_window), id); - - if ( hwnd ) + if ( !hwnd ) { - Add((WXHWND)hwnd); + // may be it's a child of parent of the control, in fact? + // (radiobuttons are subcontrols, i.e. children of the radiobox + // for wxWidgets but are its siblings at Windows level) + hwnd = GetDlgItem(GetHwndOf(m_window->GetParent()), id); } + + // must have it by now! + wxASSERT_MSG( hwnd, _T("no hwnd for subcontrol?") ); + + Add((WXHWND)hwnd); } } -#endif // !wxUSE_TTM_WINDOWFROMPOINT +#endif // !defined(__WXUNIVERSAL__) } void wxToolTip::SetTip(const wxString& tip) @@ -308,11 +443,11 @@ void wxToolTip::SetTip(const wxString& tip) if ( m_window ) { - // update it immediately + // update the tip text shown by the control wxToolInfo ti(GetHwndOf(m_window)); - ti.lpszText = (wxChar *)m_text.c_str(); + ti.lpszText = (wxChar *)m_text.wx_str(); - (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti); + (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, &ti); } }