#include "wx/tooltip.h"
#include "wx/msw/private.h"
-#if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__) || defined(wxUSE_NORLANDER_HEADERS)
-#include <commctrl.h>
+#if defined(__WIN95__) && (!defined(__GNUWIN32__) || defined(__MINGW32__))
+ #include <commctrl.h>
#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
+
+// ----------------------------------------------------------------------------
+// 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
-#pragma warning( disable : 4097 )
+// a 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
-#if defined( __GNUWIN32__ ) && !defined(wxUSE_NORLANDER_HEADERS)
- memset(this, 0, sizeof(TOOLINFO));
-#else
::ZeroMemory(this, sizeof(TOOLINFO));
-#endif
+ // 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
+
uFlags = TTF_IDISHWND;
- uId = (UINT)win->GetHWND();
+ uId = (UINT)hwnd;
}
};
-#pragma warning( default : 4097 )
+
+#ifdef __VISUALC__
+ #pragma warning( default : 4097 )
+#endif
// ----------------------------------------------------------------------------
// private functions
}
// send a message to all existing tooltip controls
-static void SendTooltipMessageToAll(UINT msg, WPARAM wParam, LPARAM lParam)
+static void SendTooltipMessageToAll(WXHWND hwnd,
+ UINT msg,
+ WPARAM wParam,
+ LPARAM lParam)
{
- // NB: it might be somewhat easier to maintain a list of all existing
- // wxToolTip controls (put them there in ctor, delete from the list
- // in dtor) - may be it's worth doing it this way? OTOH, typical
- // application won't have many top level windows, so iterating over all
- // of them shouldnt' take much time neither...
-
- // iterate over all top level windows and send message to the tooltip
- // control of each and every of them (or more precisely to all dialogs and
- // frames)
- wxDialog *dialog = NULL;
- wxFrame *frame = NULL;
-
- wxNode *node = wxTopLevelWindows.First();
- while ( node )
- {
- wxWindow *win = (wxWindow *)node->Data();
+ (void)SendTooltipMessage((WXHWND)hwnd, msg, wParam, (void *)lParam);
+}
- node = node->Next();
+// ============================================================================
+// implementation
+// ============================================================================
- if ( win->IsKindOf(CLASSINFO(wxFrame)) )
- {
- frame = (wxFrame *)win;
- dialog = NULL;
- }
- else if ( win->IsKindOf(CLASSINFO(wxDialog)) )
+#if wxUSE_TTM_WINDOWFROMPOINT
+
+// ----------------------------------------------------------------------------
+// window proc for our tooltip control
+// ----------------------------------------------------------------------------
+
+LRESULT APIENTRY wxToolTipWndProc(HWND hwndTT,
+ UINT msg,
+ WPARAM wParam,
+ LPARAM lParam)
+{
+ if ( msg == TTM_WINDOWFROMPOINT )
+ {
+ LPPOINT ppt = (LPPOINT)lParam;
+ // is the window under control a wxWindow?
+ HWND hwnd = ::WindowFromPoint(*ppt);
+
+ // return a HWND correspondign to wxWindow because only wxWindows are
+ // associated with tooltips using TTM_ADDTOOL
+ while ( hwnd && !wxFindWinFromHandle((WXHWND)hwnd) )
{
- dialog = (wxDialog *)win;
- frame = NULL;
+ hwnd = ::GetParent(hwnd);
}
- else
+
+ if ( hwnd )
{
- // skip this strange top level window
- continue;
- }
+ // modify the point too!
+ RECT rect;
+ GetWindowRect(hwnd, &rect);
- wxASSERT_MSG( dialog || frame, _T("logic error") );
+ ppt->x = rect.left;
+ ppt->y = rect.top;
- WXHWND hwndTT = frame ? frame->GetToolTipCtrl()
- : dialog->GetToolTipCtrl();
- if ( hwndTT )
- {
- (void)SendTooltipMessage(hwndTT, msg, wParam, (void *)lParam);
+ return (LRESULT)hwnd;
}
}
+
+ return ::CallWindowProc(CASTWNDPROC gs_wndprocToolTip, hwndTT, msg, wParam, lParam);
}
-// ============================================================================
-// implementation
-// ============================================================================
+#endif // wxUSE_TTM_WINDOWFROMPOINT
// ----------------------------------------------------------------------------
// static functions
void wxToolTip::Enable(bool flag)
{
- SendTooltipMessageToAll(TTM_ACTIVATE, flag, 0);
+ SendTooltipMessageToAll(ms_hwndTT, TTM_ACTIVATE, flag, 0);
}
void wxToolTip::SetDelay(long milliseconds)
{
- SendTooltipMessageToAll(TTM_SETDELAYTIME, TTDT_INITIAL, milliseconds);
+ SendTooltipMessageToAll(ms_hwndTT, TTM_SETDELAYTIME,
+ TTDT_INITIAL, milliseconds);
}
// ---------------------------------------------------------------------------
// create the tooltip ctrl for our parent frame if it doesn't exist yet
WXHWND wxToolTip::GetToolTipCtrl()
{
- // find either parent dialog or parent frame - tooltip controls are managed
- // by these 2 classes only (it doesn't make sense to create one tooltip per
- // each and every wxWindow)
- wxFrame *frame = NULL;
- wxDialog *dialog = NULL;
-
- wxWindow *parent = m_window;
- while ( parent )
- {
- if ( parent->IsKindOf(CLASSINFO(wxFrame)) )
- {
- frame = (wxFrame *)parent;
-
- break;
- }
- else if ( parent->IsKindOf(CLASSINFO(wxDialog)) )
- {
- dialog = (wxDialog *)parent;
-
- break;
- }
-
- parent = parent->GetParent();
- }
-
- wxCHECK_MSG( frame || dialog, 0,
- _T("can't create tooltip control outside a frame or a dialog") );
-
- HWND hwndTT = (HWND)(frame ? frame->GetToolTipCtrl()
- : dialog->GetToolTipCtrl());
- if ( !hwndTT )
+ if ( !ms_hwndTT )
{
- hwndTT = ::CreateWindow(TOOLTIPS_CLASS,
- (LPSTR)NULL,
- TTS_ALWAYSTIP,
- CW_USEDEFAULT, CW_USEDEFAULT,
- CW_USEDEFAULT, CW_USEDEFAULT,
- (HWND)parent->GetHWND(), (HMENU)NULL,
- wxGetInstance(), NULL);
-
- if ( hwndTT )
- {
- if ( frame )
- frame->SetToolTipCtrl((WXHWND)hwndTT);
- else
- dialog->SetToolTipCtrl((WXHWND)hwndTT);
- }
- else
- {
- wxLogSysError(_("Can not create tooltip control"));
- }
+ 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 (WXHWND)hwndTT;
+ return ms_hwndTT;
}
void wxToolTip::RelayEvent(WXMSG *msg)
// 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) )
+ {
+ wxLogDebug(_T("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) )
+#if 1 //!wxUSE_TTM_WINDOWFROMPOINT
+ // 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);
+ }
}
}
+#endif // !wxUSE_TTM_WINDOWFROMPOINT
}
void wxToolTip::SetTip(const wxString& tip)
if ( m_window )
{
// update it immediately
- wxToolInfo ti(m_window);
+ wxToolInfo ti(GetHwndOf(m_window));
ti.lpszText = (wxChar *)m_text.c_str();
(void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti);
projects / wxWidgets.git / blobdiff