Minor header cleaning.

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

diff --git a/src/msw/ole/droptgt.cpp b/src/msw/ole/droptgt.cpp
index 8d8f6fbf1cd460a8cffb15ef8fc08c5380833be9..84d718ff17aada2cbd0eb55c2b953b2b3de09bba 100644 (file)
--- a/src/msw/ole/droptgt.cpp
+++ b/src/msw/ole/droptgt.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        ole/droptgt.cpp
+// Name:        src/msw/ole/droptgt.cpp
 // Purpose:     wxDropTarget implementation
 // Author:      Vadim Zeitlin
 // Modified by:
@@ -17,23 +17,21 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-#pragma implementation "droptgt.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #if defined(__BORLANDC__)
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
-#include "wx/setup.h"
-
 #if wxUSE_OLE && wxUSE_DRAG_AND_DROP
 
+#ifndef WX_PRECOMP
+    #include "wx/msw/wrapwin.h"
+    #include "wx/log.h"
+#endif
+
 #include "wx/msw/private.h"
-#include "wx/log.h"
 
 #ifdef __WXWINCE__
     #include <winreg.h>
@@ -42,9 +40,6 @@
 
 #ifdef __WIN32__
     #if !defined(__GNUWIN32__) || wxUSE_NORLANDER_HEADERS
-        #if wxCHECK_W32API_VERSION( 1, 0 )
-            #include <windows.h>
-        #endif
         #include <shlobj.h>            // for DROPFILES structure
     #endif
 #else
@@ -85,7 +80,7 @@ protected:
     HWND          m_hwnd;         // window we're associated with
 
     // get default drop effect for given keyboard flags
-    static inline DWORD GetDropEffect(DWORD flags);
+    static inline DWORD GetDropEffect(DWORD flags, wxDragResult defaultAction);
 
     DECLARE_NO_COPY_CLASS(wxIDropTarget)
 };
@@ -109,8 +104,10 @@ static DWORD ConvertDragResultToEffect(wxDragResult result);
 // Notes   : We do "move" normally and "copy" if <Ctrl> is pressed,
 //           which is the standard behaviour (currently there is no
 //           way to redefine it)
-DWORD wxIDropTarget::GetDropEffect(DWORD flags)
+DWORD wxIDropTarget::GetDropEffect(DWORD flags, wxDragResult defaultAction)
 {
+  if (defaultAction == wxDragCopy)
+    return flags & MK_SHIFT ? DROPEFFECT_MOVE : DROPEFFECT_COPY;
   return flags & MK_CONTROL ? DROPEFFECT_COPY : DROPEFFECT_MOVE;
 }
 
@@ -189,8 +186,8 @@ STDMETHODIMP wxIDropTarget::DragEnter(IDataObject *pIDataSource,
 
     // give some visual feedback
     *pdwEffect = ConvertDragResultToEffect(
-                    m_pTarget->OnEnter(pt.x, pt.y,
-                        ConvertDragEffectToResult(GetDropEffect(grfKeyState))
+        m_pTarget->OnEnter(pt.x, pt.y, ConvertDragEffectToResult(
+            GetDropEffect(grfKeyState, m_pTarget->GetDefaultAction()))
                     )
                  );
 
@@ -214,7 +211,8 @@ STDMETHODIMP wxIDropTarget::DragOver(DWORD   grfKeyState,
 
     wxDragResult result;
     if ( m_pIDataObject ) {
-        result = ConvertDragEffectToResult(GetDropEffect(grfKeyState));
+        result = ConvertDragEffectToResult(
+            GetDropEffect(grfKeyState, m_pTarget->GetDefaultAction()));
     }
     else {
         // can't accept data anyhow normally
@@ -257,7 +255,7 @@ STDMETHODIMP wxIDropTarget::DragLeave()
 // Returns : S_OK
 // Params  : [in] IDataObject *pIDataSource     the data to paste
 //           [in] DWORD        grfKeyState      kbd & mouse state
-//           [in] POINTL       pt               where the drop occured?
+//           [in] POINTL       pt               where the drop occurred?
 //           [ouy]DWORD       *pdwEffect        operation effect
 // Notes   :
 STDMETHODIMP wxIDropTarget::Drop(IDataObject *pIDataSource,
@@ -286,7 +284,8 @@ STDMETHODIMP wxIDropTarget::Drop(IDataObject *pIDataSource,
         m_pTarget->SetDataSource(pIDataSource);
 
         // and now it has the data
-        wxDragResult rc = ConvertDragEffectToResult(GetDropEffect(grfKeyState));
+        wxDragResult rc = ConvertDragEffectToResult(
+            GetDropEffect(grfKeyState, m_pTarget->GetDefaultAction()));
         rc = m_pTarget->OnData(pt.x, pt.y, rc);
         if ( wxIsDragResultOk(rc) ) {
             // operation succeeded
@@ -294,7 +293,7 @@ STDMETHODIMP wxIDropTarget::Drop(IDataObject *pIDataSource,
         }
         //else: *pdwEffect is already DROPEFFECT_NONE
     }
-    //else: OnDrop() returned FALSE, no need to copy data
+    //else: OnDrop() returned false, no need to copy data
 
     // release the held object
     RELEASE_AND_NULL(m_pIDataObject);
@@ -330,48 +329,72 @@ wxDropTarget::~wxDropTarget()
 
 bool wxDropTarget::Register(WXHWND hwnd)
 {
-    HRESULT hr = ::CoLockObjectExternal(m_pIDropTarget, TRUE, FALSE);
+    // FIXME
+    // RegisterDragDrop not available on Windows CE >= 400?
+    // Or maybe we can dynamically load them from ceshell.dll
+    // or similar.
+#if defined(__WXWINCE__) && _WIN32_WCE >= 400
+    wxUnusedVar(hwnd);
+    return false;
+#else
+    HRESULT hr;
+
+    // May exist in later WinCE versions
+#ifndef __WXWINCE__
+    hr = ::CoLockObjectExternal(m_pIDropTarget, TRUE, FALSE);
     if ( FAILED(hr) ) {
         wxLogApiError(wxT("CoLockObjectExternal"), hr);
-        return FALSE;
+        return false;
     }
+#endif
 
     hr = ::RegisterDragDrop((HWND) hwnd, m_pIDropTarget);
     if ( FAILED(hr) ) {
+    // May exist in later WinCE versions
+#ifndef __WXWINCE__
         ::CoLockObjectExternal(m_pIDropTarget, FALSE, FALSE);
-
+#endif
         wxLogApiError(wxT("RegisterDragDrop"), hr);
-        return FALSE;
+        return false;
     }
 
     // we will need the window handle for coords transformation later
     m_pIDropTarget->SetHwnd((HWND)hwnd);
 
-    return TRUE;
+    return true;
+#endif
 }
 
 void wxDropTarget::Revoke(WXHWND hwnd)
 {
+#if defined(__WXWINCE__) && _WIN32_WCE >= 400
+    // Not available, see note above
+    wxUnusedVar(hwnd);
+#else
     HRESULT hr = ::RevokeDragDrop((HWND) hwnd);
 
     if ( FAILED(hr) ) {
         wxLogApiError(wxT("RevokeDragDrop"), hr);
     }
 
+    // May exist in later WinCE versions
+#ifndef __WXWINCE__
     ::CoLockObjectExternal(m_pIDropTarget, FALSE, TRUE);
+#endif
 
     m_pIDropTarget->SetHwnd(0);
+#endif
 }
 
 // ----------------------------------------------------------------------------
 // base class pure virtuals
 // ----------------------------------------------------------------------------
 
-// OnDrop() is called only if we previously returned TRUE from
+// OnDrop() is called only if we previously returned true from
 // IsAcceptedData(), so no need to check anything here
 bool wxDropTarget::OnDrop(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
 {
-    return TRUE;
+    return true;
 }
 
 // copy the data from the data source to the target data object
@@ -382,7 +405,7 @@ bool wxDropTarget::GetData()
         // this is strange because IsAcceptedData() succeeded previously!
         wxFAIL_MSG(wxT("strange - did supported formats list change?"));
 
-        return FALSE;
+        return false;
     }
 
     STGMEDIUM stm;
@@ -393,7 +416,7 @@ bool wxDropTarget::GetData()
     fmtMemory.lindex    = -1;
     fmtMemory.tymed     = TYMED_HGLOBAL;  // TODO to add other media
 
-    bool rc = FALSE;
+    bool rc = false;
 
     HRESULT hr = m_pIDataSource->GetData(&fmtMemory, &stm);
     if ( SUCCEEDED(hr) ) {
@@ -401,7 +424,7 @@ bool wxDropTarget::GetData()
 
         hr = dataObject->SetData(&fmtMemory, &stm, TRUE);
         if ( SUCCEEDED(hr) ) {
-            rc = TRUE;
+            rc = true;
         }
         else {
             wxLogApiError(wxT("IDataObject::SetData()"), hr);
@@ -522,5 +545,4 @@ static DWORD ConvertDragResultToEffect(wxDragResult result)
     }
 }
 
-#endif
- // wxUSE_DRAG_AND_DROP
+#endif // wxUSE_OLE && wxUSE_DRAG_AND_DROP