AuroraMiddleware/wxWidgets
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use a global hwndTT

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3634 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Unknown (MT) 1999-09-13 07:15:11 +00:00
parent 2c738dd87a
commit 066f302c6c
1 changed files with 15 additions and 91 deletions
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106
src/msw/tooltip.cpp
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@ -36,10 +36,13 @@
#include <commctrl.h>
#endif
HWND wxToolTip::hwndTT = NULL;
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
// a simple wrapper around TOOLINFO Win32 structure
#pragma warning( disable : 4097 )
class wxToolInfo : public TOOLINFO
@ -48,7 +51,7 @@ public:
wxToolInfo(wxWindow *win)
{
// initialize all members
#if defined( __GNUWIN32__ ) && !defined(wxUSE_NORLANDER_HEADERS)
#ifdef __GNUWIN32__ && !defined(wxUSE_NORLANDER_HEADERS)
memset(this, 0, sizeof(TOOLINFO));
#else
::ZeroMemory(this, sizeof(TOOLINFO));
@ -76,52 +79,13 @@ inline LRESULT SendTooltipMessage(WXHWND hwnd,
}
// 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();
node = node->Next();
if ( win->IsKindOf(CLASSINFO(wxFrame)) )
{
frame = (wxFrame *)win;
dialog = NULL;
}
else if ( win->IsKindOf(CLASSINFO(wxDialog)) )
{
dialog = (wxDialog *)win;
frame = NULL;
}
else
{
// skip this strange top level window
continue;
}
wxASSERT_MSG( dialog || frame, _T("logic error") );
WXHWND hwndTT = frame ? frame->GetToolTipCtrl()
: dialog->GetToolTipCtrl();
if ( hwndTT )
{
(void)SendTooltipMessage(hwndTT, msg, wParam, (void *)lParam);
}
}
if ( hwnd )
(void)SendTooltipMessage((WXHWND)hwnd, msg, wParam, (void *)lParam);
}
// ============================================================================
@ -132,14 +96,16 @@ static void SendTooltipMessageToAll(UINT msg, WPARAM wParam, LPARAM lParam)
// static functions
// ----------------------------------------------------------------------------
void wxToolTip::Enable(bool flag)
{
SendTooltipMessageToAll(TTM_ACTIVATE, flag, 0);
SendTooltipMessageToAll((WXHWND)hwndTT,TTM_ACTIVATE, flag, 0);
}
void wxToolTip::SetDelay(long milliseconds)
{
SendTooltipMessageToAll(TTM_SETDELAYTIME, TTDT_INITIAL, milliseconds);
SendTooltipMessageToAll((WXHWND)hwndTT,TTM_SETDELAYTIME, TTDT_INITIAL, milliseconds);
}
// ---------------------------------------------------------------------------
@ -149,36 +115,6 @@ void wxToolTip::SetDelay(long 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 )
{
hwndTT = ::CreateWindow(TOOLTIPS_CLASS,
@ -186,20 +122,8 @@ WXHWND wxToolTip::GetToolTipCtrl()
TTS_ALWAYSTIP,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
(HWND)parent->GetHWND(), (HMENU)NULL,
NULL, (HMENU)NULL,
wxGetInstance(), NULL);
if ( hwndTT )
{
if ( frame )
frame->SetToolTipCtrl((WXHWND)hwndTT);
else
dialog->SetToolTipCtrl((WXHWND)hwndTT);
}
else
{
wxLogSysError(_("Can not create tooltip control"));
}
}
return (WXHWND)hwndTT;