X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2a1f999fafa4312ccd47b7be65c672c2220fea36..4f433feff9251ded00bba26b633f93e660cd44c4:/src/msw/listctrl.cpp?ds=sidebyside

diff --git a/src/msw/listctrl.cpp b/src/msw/listctrl.cpp
index dd212e951c..3769867501 100644
--- a/src/msw/listctrl.cpp
+++ b/src/msw/listctrl.cpp
@@ -56,6 +56,15 @@
 // include <commctrl.h> "properly"
 #include "wx/msw/wrapcctl.h"
 
+// Currently gcc and watcom don't define NMLVFINDITEM, and DMC only defines
+// it by its old name NM_FINDTIEM.
+//
+#if defined(__VISUALC__) || defined(__BORLANDC__) || defined(NMLVFINDITEM)
+    #define HAVE_NMLVFINDITEM 1
+#elif defined(__DMC__) || defined(NM_FINDITEM)
+    #define HAVE_NM_FINDITEM 1
+#endif
+
 // ----------------------------------------------------------------------------
 // private functions
 // ----------------------------------------------------------------------------
@@ -166,7 +175,7 @@ private:
 //
 // Solution:
 // Under MSW the only way to associate data with a List
-// item independant of its position in the list is to
+// item independent of its position in the list is to
 // store a pointer to it in its lParam attribute. However
 // user programs are already using this (via the
 // SetItemData() GetItemData() calls).
@@ -357,12 +366,12 @@ bool wxListCtrl::Create(wxWindow *parent,
     // 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)
+    // 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;
@@ -1834,7 +1843,7 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 event.m_item.m_data = internaldata->lParam;
         }
 
-
+        bool processed = true;
         switch ( nmhdr->code )
         {
             case LVN_BEGINRDRAG:
@@ -2133,6 +2142,82 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 }
                 break;
 
+#if HAVE_NMLVFINDITEM || HAVE_NM_FINDITEM
+            case LVN_ODFINDITEM:
+                // this message is only used with the virtual list control but
+                // even there we don't want to always use it: in a control with
+                // sufficiently big number of items (defined as > 1000 here),
+                // accidentally pressing a key could result in hanging an
+                // application waiting while it performs linear search
+                if ( IsVirtual() && GetItemCount() <= 1000 )
+                {
+#if HAVE_NMLVFINDITEM
+                    NMLVFINDITEM* pFindInfo = (NMLVFINDITEM*)lParam;
+#else
+                    NM_FINDITEM* pFindInfo = (NM_FINDITEM*)lParam;
+#endif
+
+                    // no match by default
+                    *result = -1;
+
+                    // we only handle string-based searches here
+                    //
+                    // TODO: what about LVFI_PARTIAL, should we handle this?
+                    if ( !(pFindInfo->lvfi.flags & LVFI_STRING) )
+                    {
+                        return false;
+                    }
+
+                    const wxChar * const searchstr = pFindInfo->lvfi.psz;
+                    const size_t len = wxStrlen(searchstr);
+
+                    // this is the first item we should examine, search from it
+                    // wrapping if necessary
+                    const int startPos = pFindInfo->iStart;
+                    const int maxPos = GetItemCount();
+                    wxCHECK_MSG( startPos <= maxPos, false,
+                                 _T("bad starting position in LVN_ODFINDITEM") );
+
+                    int currentPos = startPos;
+                    do
+                    {
+                        // wrap to the beginning if necessary
+                        if ( currentPos == maxPos )
+                        {
+                            // somewhat surprizingly, LVFI_WRAP isn't set in
+                            // flags but we still should wrap
+                            currentPos = 0;
+                        }
+
+                        // does this item begin with searchstr?
+                        if ( wxStrnicmp(searchstr,
+                                            GetItemText(currentPos), len) == 0 )
+                        {
+                            *result = currentPos;
+                            break;
+                        }
+                    }
+                    while ( ++currentPos != startPos );
+
+                    if ( *result == -1 )
+                    {
+                        // not found
+                        return false;
+                    }
+
+                    SetItemState(*result,
+                                 wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED,
+                                 wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED);
+                    EnsureVisible(*result);
+                    return true;
+                }
+                else
+                {
+                    processed = false;
+                }
+                break;
+#endif // HAVE_NMLVFINDITEM || HAVE_NM_FINDITEM
+
             case LVN_GETDISPINFO:
                 if ( IsVirtual() )
                 {
@@ -2165,8 +2250,11 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 // fall through
 
             default:
-                return wxControl::MSWOnNotify(idCtrl, lParam, result);
+                processed = false;
         }
+
+        if ( !processed )
+            return wxControl::MSWOnNotify(idCtrl, lParam, result);
     }
     else
     {
@@ -2202,7 +2290,7 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
         case LVN_ENDLABELEDITA:
         case LVN_ENDLABELEDITW:
-            // logic here is inversed compared to all the other messages
+            // logic here is inverted compared to all the other messages
             *result = event.IsAllowed();
 
             // don't keep a stale wxTextCtrl around