Add comments explaining the workaround for mingw 3.2.3

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

diff --git a/src/msw/listctrl.cpp b/src/msw/listctrl.cpp
index 0d5621a969a2bb22e01cf19d518a4debe8158f77..c343501f9fe4226e4dc45c0b7ec945a508004cc0 100644 (file)
--- a/src/msw/listctrl.cpp
+++ b/src/msw/listctrl.cpp
@@ -350,19 +350,19 @@ bool wxListCtrl::Create(wxWindow *parent,
     if ( !CreateControl(parent, id, pos, size, style, validator, name) )
         return false;
 
-    if ( !MSWCreateControl(WC_LISTVIEW, _T(""), pos, size) )
+    if ( !MSWCreateControl(WC_LISTVIEW, wxEmptyString, pos, size) )
         return false;
 
     // explicitly say that we want to use Unicode because otherwise we get ANSI
     // versions of _some_ messages (notably LVN_GETDISPINFOA) in MSLU build
     wxSetCCUnicodeFormat(GetHwnd());
 
-    // for comctl32.dll v 4.70+ we want to have this attribute because it's
-    // prettier (and also because wxGTK does it like this)
-    if ( InReportView() && wxTheApp->GetComCtl32Version() >= 470 )
+    // for comctl32.dll v 4.70+ we want to have some non default extended
+    // styles because it's prettier (and also because wxGTK does it like this)
+    if ( InReportView() && wxApp::GetComCtl32Version() >= 470 )
     {
         ::SendMessage(GetHwnd(), LVM_SETEXTENDEDLISTVIEWSTYLE,
-                      0, LVS_EX_FULLROWSELECT);
+                      0, LVS_EX_LABELTIP | LVS_EX_FULLROWSELECT);
     }
 
     return true;
@@ -428,7 +428,7 @@ WXDWORD wxListCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
 #if !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
     if ( style & wxLC_VIRTUAL )
     {
-        int ver = wxTheApp->GetComCtl32Version();
+        int ver = wxApp::GetComCtl32Version();
         if ( ver < 470 )
         {
             wxLogWarning(_("Please install a newer version of comctl32.dll\n(at least version 4.70 is required but you have %d.%02d)\nor this program won't operate correctly."),
@@ -480,8 +480,6 @@ void wxListCtrl::FreeAllInternalData()
         m_ignoreChangeMessages = false;
 
         m_AnyInternalData = false;
-
-        m_count = 0;
     }
 }
 
@@ -497,9 +495,12 @@ wxListCtrl::~wxListCtrl()
         m_textCtrl = NULL;
     }
 
-    if (m_ownsImageListNormal) delete m_imageListNormal;
-    if (m_ownsImageListSmall) delete m_imageListSmall;
-    if (m_ownsImageListState) delete m_imageListState;
+    if (m_ownsImageListNormal)
+        delete m_imageListNormal;
+    if (m_ownsImageListSmall)
+        delete m_imageListSmall;
+    if (m_ownsImageListState)
+        delete m_imageListState;
 }
 
 // ----------------------------------------------------------------------------
@@ -670,17 +671,15 @@ int wxListCtrl::GetColumnWidth(int col) const
 // Sets the column width
 bool wxListCtrl::SetColumnWidth(int col, int width)
 {
-    int col2 = col;
     if ( m_windowStyle & wxLC_LIST )
-        col2 = -1;
+        col = 0;
 
-    int width2 = width;
-    if ( width2 == wxLIST_AUTOSIZE)
-        width2 = LVSCW_AUTOSIZE;
-    else if ( width2 == wxLIST_AUTOSIZE_USEHEADER)
-        width2 = LVSCW_AUTOSIZE_USEHEADER;
+    if ( width == wxLIST_AUTOSIZE)
+        width = LVSCW_AUTOSIZE;
+    else if ( width == wxLIST_AUTOSIZE_USEHEADER)
+        width = LVSCW_AUTOSIZE_USEHEADER;
 
-    return ListView_SetColumnWidth(GetHwnd(), col2, width2) != 0;
+    return ListView_SetColumnWidth(GetHwnd(), col, width) != 0;
 }
 
 // Gets the number of items that can fit vertically in the
@@ -727,8 +726,7 @@ bool wxListCtrl::GetItem(wxListItem& info) const
     if ( info.m_mask & wxLIST_MASK_STATE )
     {
         lvItem.mask |= LVIF_STATE;
-        // the other bits are hardly interesting anyhow
-        lvItem.stateMask = LVIS_SELECTED | LVIS_FOCUSED;
+        wxConvertToMSWFlags(0, info.m_stateMask, lvItem);
     }
 
     bool success = ListView_GetItem((HWND)GetHWND(), &lvItem) != 0;
@@ -1232,7 +1230,7 @@ bool wxListCtrl::DeleteItem(long item)
         return false;
     }
 
-    m_count -= 1;
+    m_count--;
     wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
                   wxT("m_count should match ListView_GetItemCount"));
 
@@ -1818,7 +1816,8 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
         // ignored for efficiency.  It is done here because the internal data is in the
         // process of being deleted so we don't want to try and access it below.
         if ( m_ignoreChangeMessages &&
-             ( (nmLV->hdr.code == LVN_ITEMCHANGED) || (nmLV->hdr.code == LVN_ITEMCHANGING)))
+             ( (nmLV->hdr.code == LVN_ITEMCHANGED) ||
+               (nmLV->hdr.code == LVN_ITEMCHANGING)) )
         {
             return true;
         }
@@ -1924,10 +1923,12 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 break;
 
             case LVN_DELETEITEM:
-                if (m_count == 0)
-                    // this should be prevented by the post-processing code below,
-                    // but "just in case"
+                if ( m_count == 0 )
+                {
+                    // this should be prevented by the post-processing code
+                    // below, but "just in case"
                     return false;
+                }
 
                 eventType = wxEVT_COMMAND_LIST_DELETE_ITEM;
                 event.m_itemIndex = iItem;
@@ -2193,6 +2194,10 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             // also, we may free all user data now (couldn't do it before as
             // the user should have access to it in OnDeleteAllItems() handler)
             FreeAllInternalData();
+
+            // the control is empty now, synchronize the cached number of items
+            // with the real one
+            m_count = 0;
             return true;
 
         case LVN_ENDLABELEDITA:
@@ -2377,6 +2382,21 @@ void wxListCtrl::OnPaint(wxPaintEvent& event)
     }
 }
 
+WXLRESULT
+wxListCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+#ifdef WM_PRINT
+    if ( nMsg == WM_PRINT )
+    {
+        // we should bypass our own WM_PRINT handling as we don't handle
+        // PRF_CHILDREN flag, so leave it to the native control itself
+        return MSWDefWindowProc(nMsg, wParam, lParam);
+    }
+#endif // WM_PRINT
+
+    return wxControl::MSWWindowProc(nMsg, wParam, lParam);
+}
+
 // ----------------------------------------------------------------------------
 // virtual list controls
 // ----------------------------------------------------------------------------