Clear grid selection more consistently prior clear operations; improved Clear() tests...

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

diff --git a/src/msw/listctrl.cpp b/src/msw/listctrl.cpp
index f05ea49fb8ae085aba3b1ca30a4228ca52cc8ee9..77d37d2738a03cbe26977805fe9bd8b05b6563a0 100644 (file)
--- a/src/msw/listctrl.cpp
+++ b/src/msw/listctrl.cpp
@@ -187,7 +187,7 @@ private:
     LV_ITEM_NATIVE *m_pItem;
     LV_ITEM_NATIVE m_item;
 
-    DECLARE_NO_COPY_CLASS(wxLV_ITEM)
+    wxDECLARE_NO_COPY_CLASS(wxLV_ITEM);
 };
 
 ///////////////////////////////////////////////////////
@@ -235,7 +235,7 @@ public:
            delete attr;
    }
 
-    DECLARE_NO_COPY_CLASS(wxListItemInternalData)
+    wxDECLARE_NO_COPY_CLASS(wxListItemInternalData);
 };
 
 // Get the internal data structure
@@ -2821,14 +2821,22 @@ WXLPARAM wxListCtrl::OnCustomDraw(WXLPARAM lParam)
             break;
 
         case CDDS_ITEMPREPAINT:
+            // get a message for each subitem
+            return CDRF_NOTIFYITEMDRAW;
+
+        case CDDS_SUBITEM | CDDS_ITEMPREPAINT:
             const int item = nmcd.dwItemSpec;
+            const int column = pLVCD->iSubItem;
 
             // we get this message with item == 0 for an empty control, we
             // must ignore it as calling OnGetItemAttr() would be wrong
             if ( item < 0 || item >= GetItemCount() )
                 break;
+            // same for columns
+            if ( column < 0 || column >= GetColumnCount() )
+                break;
 
-            return HandleItemPrepaint(this, pLVCD, DoGetItemAttr(item));
+            return HandleItemPrepaint(this, pLVCD, DoGetItemColumnAttr(item, column));
     }
 
     return CDRF_DODEFAULT;
@@ -2839,10 +2847,11 @@ WXLPARAM wxListCtrl::OnCustomDraw(WXLPARAM lParam)
 // Necessary for drawing hrules and vrules, if specified
 void wxListCtrl::OnPaint(wxPaintEvent& event)
 {
+    const int itemCount = GetItemCount();
     const bool drawHRules = HasFlag(wxLC_HRULES);
     const bool drawVRules = HasFlag(wxLC_VRULES);
 
-    if (!InReportView() || !(drawHRules || drawVRules))
+    if (!InReportView() || !(drawHRules || drawVRules) || !itemCount)
     {
         event.Skip();
         return;
@@ -2862,12 +2871,10 @@ void wxListCtrl::OnPaint(wxPaintEvent& event)
     wxSize clientSize = GetClientSize();
     wxRect itemRect;
 
-    int itemCount = GetItemCount();
-    int i;
     if (drawHRules)
     {
-        long top = GetTopItem();
-        for (i = top; i < top + GetCountPerPage() + 1; i++)
+        const long top = GetTopItem();
+        for ( int i = top; i < top + GetCountPerPage() + 1; i++ )
         {
             if (GetItemRect(i, itemRect))
             {
@@ -2881,17 +2888,18 @@ void wxListCtrl::OnPaint(wxPaintEvent& event)
                 {
                     cy = itemRect.GetBottom();
                     dc.DrawLine(0, cy, clientSize.x, cy);
+                    break;
                 }
             }
         }
     }
-    i = itemCount - 1;
-    if (drawVRules && (i > -1))
+
+    if (drawVRules)
     {
         wxRect firstItemRect;
         GetItemRect(0, firstItemRect);
 
-        if (GetItemRect(i, itemRect))
+        if (GetItemRect(itemCount - 1, itemRect))
         {
             // this is a fix for bug 673394: erase the pixels which we would
             // otherwise leave on the screen
@@ -2990,9 +2998,9 @@ wxListItemAttr *wxListCtrl::OnGetItemAttr(long WXUNUSED_UNLESS_DEBUG(item)) cons
     return NULL;
 }
 
-wxListItemAttr *wxListCtrl::DoGetItemAttr(long item) const
+wxListItemAttr *wxListCtrl::DoGetItemColumnAttr(long item, long column) const
 {
-    return IsVirtual() ? OnGetItemAttr(item)
+    return IsVirtual() ? OnGetItemColumnAttr(item, column)
                        : wxGetInternalDataAttr(this, item);
 }