added wxRESERVE_SPACE_EVEN_IF_HIDDEN sizer flag that prevents the sizer from changing...

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

diff --git a/src/msw/tooltip.cpp b/src/msw/tooltip.cpp
index 0b705200f7207df181c69c6f280a7a78b10b5c95..dd3fdd076b086d079ee41fa5d05f4ac46d3484b8 100644 (file)
--- a/src/msw/tooltip.cpp
+++ b/src/msw/tooltip.cpp
@@ -31,12 +31,19 @@
     #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"
 
+#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.
@@ -79,21 +86,26 @@ public:
         ::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
+        // 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)hwndOwner;
+
+        // 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;
     }
 };
 
@@ -362,9 +374,12 @@ void wxToolTip::Add(WXHWND hWnd)
                 }
 
                 // only set a new width if it is bigger than the current setting
-                if (max > SendTooltipMessage(GetToolTipCtrl(), TTM_GETMAXTIPWIDTH, 0))
+                if ( max > SendTooltipMessage(GetToolTipCtrl(),
+                                              TTM_GETMAXTIPWIDTH, 0) )
+                {
                     SendTooltipMessage(GetToolTipCtrl(), TTM_SETMAXTIPWIDTH,
-                                       (void *)max);
+                                       wxUIntToPtr(max));
+                }
             }
             else
 #endif // comctl32.dll >= 4.70
@@ -395,7 +410,7 @@ void wxToolTip::SetWindow(wxWindow *win)
         Add(m_window->GetHWND());
     }
 #if !defined(__WXUNIVERSAL__)
-    // and all of its subcontrols (e.g. radiobuttons in a radiobox) as well
+    // and all of its subcontrols (e.g. radio buttons in a radiobox) as well
     wxControl *control = wxDynamicCast(m_window, wxControl);
     if ( control )
     {
@@ -419,22 +434,6 @@ void wxToolTip::SetWindow(wxWindow *win)
             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__)
 }