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[wxWidgets.git] / src / msw / tooltip.cpp

diff --git a/src/msw/tooltip.cpp b/src/msw/tooltip.cpp
index 8fde93e577c00165b4aa39b98c80555495b39576..0e41099317b87a21805e171333cbe96adadcd2f2 100644 (file)
--- a/src/msw/tooltip.cpp
+++ b/src/msw/tooltip.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        msw/tooltip.cpp
+// Name:        src/msw/tooltip.cpp
 // Purpose:     wxToolTip class implementation for MSW
 // Author:      Vadim Zeitlin
 // Modified by:
@@ -23,17 +23,19 @@
     #pragma hdrstop
 #endif
 
-#ifndef WX_PRECOMP
-    #include "wx/wx.h"
-#endif
-
 #if wxUSE_TOOLTIPS
 
 #include "wx/tooltip.h"
-#include "wx/msw/private.h"
 
-// include <commctrl.h> "properly"
-#include "wx/msw/wrapcctl.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
@@ -199,14 +201,23 @@ WXHWND wxToolTip::GetToolTipCtrl()
 {
     if ( !ms_hwndTT )
     {
-        ms_hwndTT = (WXHWND)::CreateWindow(TOOLTIPS_CLASS,
-                                           (LPCTSTR)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;
@@ -244,8 +255,8 @@ wxToolTip::wxToolTip(const wxString &tip)
 wxToolTip::~wxToolTip()
 {
     // 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();
+    // while being deleted, there will be a delay before it goes away.
+    Remove();
 }
 
 // ----------------------------------------------------------------------------
@@ -280,7 +291,7 @@ void wxToolTip::Add(WXHWND hWnd)
     // NMTTDISPINFO struct -- and setting the tooltip here we can have tooltips
     // of any length
     ti.hwnd = hwnd;
-    ti.lpszText = (wxChar *)m_text.c_str(); // const_cast
+    ti.lpszText = (wxChar *)m_text.wx_str(); // const_cast
 
     if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, &ti) )
     {
@@ -321,14 +332,27 @@ void wxToolTip::Add(WXHWND hWnd)
                     wxLogLastError(wxT("SelectObject(hfont)"));
                 }
 
-                SIZE sz;
-                if ( !::GetTextExtentPoint32(hdc, m_text, index, &sz) )
+                // find the width of the widest line
+                int max = 0;
+                wxStringTokenizer tokenizer(m_text, _T("\n"));
+                wxString token = tokenizer.GetNextToken();
+                while (token.length())
                 {
-                    wxLogLastError(wxT("GetTextExtentPoint32"));
+                    SIZE sz;
+                    if ( !::GetTextExtentPoint32(hdc, token.wx_str(), token.length(), &sz) )
+                    {
+                        wxLogLastError(wxT("GetTextExtentPoint32"));
+                    }
+                    if ( sz.cx > max )
+                        max = sz.cx;
+
+                    token = tokenizer.GetNextToken();
                 }
 
-                SendTooltipMessage(GetToolTipCtrl(), TTM_SETMAXTIPWIDTH,
-                                        (void *)sz.cx);
+                // 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
@@ -336,7 +360,7 @@ void wxToolTip::Add(WXHWND hWnd)
                 // 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
+                ti.lpszText = (wxChar *)m_text.wx_str(); // const_cast
 
                 if ( !SendTooltipMessage(GetToolTipCtrl(), TTM_ADDTOOL, &ti) )
                 {
@@ -410,7 +434,7 @@ void wxToolTip::SetTip(const wxString& tip)
     {
         // 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, &ti);
     }