Better scrolling to cursor.

[wxWidgets.git] / src / msw / ole / dropsrc.cpp

diff --git a/src/msw/ole/dropsrc.cpp b/src/msw/ole/dropsrc.cpp
index 3ddecc92ea70d20bf2748a4c0dcc61734428a48c..fee89b633f6c00a197df4964e13b5446404eb223 100644 (file)
--- a/src/msw/ole/dropsrc.cpp
+++ b/src/msw/ole/dropsrc.cpp
@@ -33,22 +33,18 @@
 
 #include "wx/setup.h"
 
-#if wxUSE_DRAG_AND_DROP
+#if wxUSE_OLE && wxUSE_DRAG_AND_DROP
 
 #include "wx/log.h"
 #include "wx/dnd.h"
 
 #include <windows.h>
 
-#ifdef wxUSE_NORLANDER_HEADERS
+// for some compilers, the entire ole2.h must be included, not only oleauto.h
+#if wxUSE_NORLANDER_HEADERS || defined(__WATCOMC__)
     #include <ole2.h>
 #endif
 
-#ifndef __WIN32__
-    #include <ole2.h>
-    #include <olestd.h>
-#endif
-
 #include <oleauto.h>
 
 #include "wx/msw/ole/oleutils.h"
@@ -71,6 +67,8 @@ public:
 private:
   DWORD         m_grfInitKeyState;  // button which started the d&d operation
   wxDropSource *m_pDropSource;      // pointer to C++ class we belong to
+
+    DECLARE_NO_COPY_CLASS(wxIDropSource)
 };
 
 // ============================================================================
@@ -93,7 +91,6 @@ wxIDropSource::wxIDropSource(wxDropSource *pDropSource)
 
   m_pDropSource = pDropSource;
   m_grfInitKeyState = 0;
-  m_cRef = 0;
 }
 
 // Name    : wxIDropSource::QueryContinueDrag
@@ -140,8 +137,7 @@ STDMETHODIMP wxIDropSource::GiveFeedback(DWORD dwEffect)
   else
     effect = wxDragNone;
 
-  if ( m_pDropSource->GiveFeedback(effect,
-                                   (dwEffect & DROPEFFECT_SCROLL) != 0 ) )
+  if ( m_pDropSource->GiveFeedback(effect) )
     return S_OK;
 
   return DRAGDROP_S_USEDEFAULTCURSORS;
@@ -156,45 +152,50 @@ STDMETHODIMP wxIDropSource::GiveFeedback(DWORD dwEffect)
 // common part of all ctors
 void wxDropSource::Init()
 {
-  m_pIDropSource = new wxIDropSource(this);
-  m_pIDropSource->AddRef();
+    m_pIDropSource = new wxIDropSource(this);
+    m_pIDropSource->AddRef();
 }
 
 wxDropSource::wxDropSource(wxWindow* WXUNUSED(win),
-                           const wxIcon & WXUNUSED(go),
-                           const wxIcon & WXUNUSED(stop))
+                           const wxCursor &cursorCopy,
+                           const wxCursor &cursorMove,
+                           const wxCursor &cursorStop)
+            : wxDropSourceBase(cursorCopy, cursorMove, cursorStop)
 {
-  Init();
+    Init();
 }
 
 wxDropSource::wxDropSource(wxDataObject& data,
                            wxWindow* WXUNUSED(win),
-                           const wxIcon & WXUNUSED(go),
-                           const wxIcon & WXUNUSED(stop))
+                           const wxCursor &cursorCopy,
+                           const wxCursor &cursorMove,
+                           const wxCursor &cursorStop)
+            : wxDropSourceBase(cursorCopy, cursorMove, cursorStop)
 {
-  Init();
-  SetData(data);
+    Init();
+    SetData(data);
 }
 
 wxDropSource::~wxDropSource()
 {
-  m_pIDropSource->Release();
+    m_pIDropSource->Release();
 }
 
 // Name    : DoDragDrop
 // Purpose : start drag and drop operation
 // Returns : wxDragResult - the code of performed operation
-// Params  : [in] bool bAllowMove: if false, only copy is allowed
+// Params  : [in] int flags: specifies if moving is allowe (or only copying)
 // Notes   : you must call SetData() before if you had used def ctor
-wxDragResult wxDropSource::DoDragDrop(bool bAllowMove)
+wxDragResult wxDropSource::DoDragDrop(int flags)
 {
   wxCHECK_MSG( m_data != NULL, wxDragNone, wxT("No data in wxDropSource!") );
 
   DWORD dwEffect;
   HRESULT hr = ::DoDragDrop(m_data->GetInterface(),
                             m_pIDropSource,
-                            bAllowMove ? DROPEFFECT_COPY | DROPEFFECT_MOVE
-                                       : DROPEFFECT_COPY,
+                            (flags & wxDrag_AllowMove)
+                                ? DROPEFFECT_COPY | DROPEFFECT_MOVE
+                                : DROPEFFECT_COPY,
                             &dwEffect);
 
   if ( hr == DRAGDROP_S_CANCEL ) {
@@ -206,11 +207,8 @@ wxDragResult wxDropSource::DoDragDrop(bool bAllowMove)
     }
     else if ( dwEffect & DROPEFFECT_MOVE ) {
       // consistency check: normally, we shouldn't get "move" at all
-      // here if !bAllowMove, but in practice it does happen quite often
-      if ( bAllowMove )
-        return wxDragMove;
-      else
-        return wxDragCopy;
+      // here if we don't allow it, but in practice it does happen quite often
+      return (flags & wxDrag_AllowMove) ? wxDragMove : wxDragCopy;
     }
     else {
       // not copy or move
@@ -219,11 +217,12 @@ wxDragResult wxDropSource::DoDragDrop(bool bAllowMove)
   }
   else {
     if ( FAILED(hr) ) {
-      wxLogApiError("DoDragDrop", hr);
+      wxLogApiError(wxT("DoDragDrop"), hr);
       wxLogError(wxT("Drag & drop operation failed."));
     }
     else {
-      wxLogDebug(wxT("Unexpected success return code %08lx from DoDragDrop."), hr);
+      wxLogDebug(wxT("Unexpected success return code %08lx from DoDragDrop."),
+                 hr);
     }
 
     return wxDragError;
@@ -234,11 +233,20 @@ wxDragResult wxDropSource::DoDragDrop(bool bAllowMove)
 // Purpose : visually inform the user about d&d operation state
 // Returns : bool: true if we do all ourselves or false for default feedback
 // Params  : [in] DragResult effect - what would happen if we dropped now
-//           [in] bool bScrolling   - true if target is scrolling
 // Notes   : here we just leave this stuff for default implementation
-bool wxDropSource::GiveFeedback(wxDragResult effect, bool bScrolling)
+bool wxDropSource::GiveFeedback(wxDragResult effect)
 {
-  return FALSE;
+    const wxCursor& cursor = GetCursor(effect);
+    if ( cursor.Ok() )
+    {
+        ::SetCursor((HCURSOR)cursor.GetHCURSOR());
+
+        return TRUE;
+    }
+    else
+    {
+        return FALSE;
+    }
 }
 
 #endif  //USE_DRAG_AND_DROP