Some change logs

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

diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp
index c5ce30eada57f8defd701c2753f88a8f8a6fe175..2df7fb4f75b6677a6d13abea9bcf6b2a99d25137 100644 (file)
--- a/src/msw/treectrl.cpp
+++ b/src/msw/treectrl.cpp
@@ -30,10 +30,11 @@
 
 #if wxUSE_TREECTRL
 
+#include "wx/msw/private.h"
+
 // include <commctrl.h> "properly"
 #include "wx/msw/wrapcctl.h"
 
-#include "wx/msw/private.h"
 #include "wx/msw/missing.h"
 
 // Set this to 1 to be _absolutely_ sure that repainting will work for all
@@ -347,7 +348,8 @@ public:
         {
             m_selections.Empty();
 
-            DoTraverse(tree->GetRootItem());
+            if (tree->GetCount() > 0)
+                DoTraverse(tree->GetRootItem());
         }
 
     virtual bool OnVisit(const wxTreeItemId& item)
@@ -2244,14 +2246,38 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
     WXLRESULT rc = 0;
     bool isMultiple = HasFlag(wxTR_MULTIPLE);
 
+    // This message is sent after a right-click, or when the "menu" key is pressed
     if ( nMsg == WM_CONTEXTMENU )
     {
+        int x = GET_X_LPARAM(lParam),
+            y = GET_Y_LPARAM(lParam);
+        // Convert the screen point to a client point
+        wxPoint MenuPoint = ScreenToClient(wxPoint(x, y));
+
         wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_MENU, GetId() );
 
         // can't use GetSelection() here as it would assert in multiselect mode
         event.m_item = wxTreeItemId(TreeView_GetSelection(GetHwnd()));
         event.SetEventObject( this );
 
+        // Get the bounding rectangle for the item, including the non-text areas
+        wxRect ItemRect;
+        GetBoundingRect(event.m_item, ItemRect, false);
+        // If the point is inside the bounding rectangle, use it as the click position.
+        // This should be the case for WM_CONTEXTMENU as the result of a right-click
+        if (ItemRect.Inside(MenuPoint))
+        {
+            event.m_pointDrag = MenuPoint;
+        }
+        // Use the Explorer standard of putting the menu at the left edge of the text,
+        // in the vertical middle of the text. Should be the case for the "menu" key
+        else
+        {
+            // Use the bounding rectangle of only the text part
+            GetBoundingRect(event.m_item, ItemRect, true);
+            event.m_pointDrag = wxPoint(ItemRect.GetX(), ItemRect.GetY() + ItemRect.GetHeight() / 2);
+        }
+
         if ( GetEventHandler()->ProcessEvent(event) )
             processed = true;
         //else: continue with generating wxEVT_CONTEXT_MENU in base class code