///////////////////////////////////////////////////////////////////////////////
-// 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
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
#pragma hdrstop
#endif
-#ifndef WX_PRECOMP
- #include "wx/wx.h"
-#endif
-
#if wxUSE_TOOLTIPS
#include "wx/tooltip.h"
-#include "wx/msw/private.h"
-#if defined(__WIN95__) && !defined(__GNUWIN32_OLD__)
- #include <commctrl.h>
+#ifndef WX_PRECOMP
+ #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
+ #include "wx/app.h"
+ #include "wx/control.h"
+ #include "wx/combobox.h"
#endif
+#include "wx/tokenzr.h"
+#include "wx/msw/private.h"
+
// 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.
+// 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
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
-// a simple wrapper around TOOLINFO Win32 structure
+// 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(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 _WIN32_IE >= 0x0300
+ cbSize = sizeof(TOOLINFO) - sizeof(LPARAM);
+#else // old headers
cbSize = sizeof(TOOLINFO);
+#endif // compile-time comctl32.dll version
+
+ hwnd = hwndOwner;
uFlags = TTF_IDISHWND;
- uId = (UINT)hwnd;
+ uId = (UINT)hwndOwner;
}
};
+
#ifdef __VISUALC__
#pragma warning( default : 4097 )
#endif
// 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);
}
// ============================================================================
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
// ---------------------------------------------------------------------------
// 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;
#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
}
}
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)
{
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());
}
}
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.c_str(); // const_cast
- if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, 0, &ti) )
+ if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, &ti) )
{
- wxLogSysError(_("Failed to create the tooltip '%s'"),
- m_text.c_str());
+ 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, 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,
+ (void *)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.c_str(); // const_cast
+
+ if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, &ti) )
+ {
+ wxLogDebug(_T("Failed to create the tooltip '%s'"), m_text.c_str());
+ }
+ }
+ }
}
}
{
Add(m_window->GetHWND());
}
-
+#if !defined(__WXUNIVERSAL__)
// 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();
+ 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);
+ }
+ }
+
+ // VZ: it's ugly to do it here, but I don't want any major changes right
+ // now, later we will probably want to have wxWindow::OnGotToolTip() or
+ // something like this where the derived class can do such things
+ // itself instead of wxToolTip "knowing" about them all
+ wxComboBox *combo = wxDynamicCast(control, wxComboBox);
+ if ( combo )
+ {
+ WXHWND hwndComboEdit = combo->GetWindowStyle() & wxCB_READONLY
+ ? combo->GetHWND()
+ : combo->GetEditHWND();
+ if ( hwndComboEdit )
+ {
+ Add(hwndComboEdit);
}
}
+#endif // !defined(__WXUNIVERSAL__)
}
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();
- (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti);
+ (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, &ti);
}
}
projects / wxWidgets.git / blobdiff