fixing length param, see #10846

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

diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp
index 5a46ab36d7b841cda55c77f7ca4c276bd2170207..ca1456ec6693f785aed4b83c9435e4b0799c9842 100644 (file)
--- a/src/msw/bitmap.cpp
+++ b/src/msw/bitmap.cpp
@@ -56,7 +56,7 @@
 #endif // no CLR_INVALID
 
 // ----------------------------------------------------------------------------
-// Bitmap data
+// wxBitmapRefData
 // ----------------------------------------------------------------------------
 
 class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData
@@ -92,12 +92,12 @@ public:
     // MSW-specific
     // ------------
 
-#ifdef __WXDEBUG__
+#if wxDEBUG_LEVEL
     // this field is solely for error checking: we detect selecting a bitmap
     // into more than one DC at once or deleting a bitmap still selected into a
     // DC (both are serious programming errors under Windows)
     wxDC         *m_selectedInto;
-#endif // __WXDEBUG__
+#endif // wxDEBUG_LEVEL
 
 #if wxUSE_WXDIB
     // when GetRawData() is called for a DDB we need to convert it to a DIB
@@ -185,7 +185,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
 
 wxBitmapRefData::wxBitmapRefData()
 {
-#ifdef __WXDEBUG__
+#if wxDEBUG_LEVEL
     m_selectedInto = NULL;
 #endif
     m_bitmapMask = NULL;
@@ -202,7 +202,7 @@ wxBitmapRefData::wxBitmapRefData()
 wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data)
                : wxGDIImageRefData(data)
 {
-#ifdef __WXDEBUG__
+#if wxDEBUG_LEVEL
     m_selectedInto = NULL;
 #endif
 
@@ -254,7 +254,7 @@ wxGDIImageRefData *wxBitmap::CreateData() const
 wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *dataOrig) const
 {
     const wxBitmapRefData *
-        data = wx_static_cast(const wxBitmapRefData *, dataOrig);
+        data = static_cast<const wxBitmapRefData *>(dataOrig);
     if ( !data )
         return NULL;
 
@@ -262,25 +262,27 @@ wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *dataOrig) const
     //        wxBitmapRefData using its copy ctor but instead it modifies this
     //        bitmap itself and then returns its m_refData -- which works, of
     //        course (except in !wxUSE_WXDIB), but is completely illogical
-    wxBitmap *self = wx_const_cast(wxBitmap *, this);
+    wxBitmap *self = const_cast<wxBitmap *>(this);
 
+    wxBitmapRefData *selfdata;
 #if wxUSE_WXDIB
     // copy the other bitmap
     if ( data->m_hBitmap )
     {
         wxDIB dib((HBITMAP)(data->m_hBitmap));
         self->CopyFromDIB(dib);
+
+        selfdata = static_cast<wxBitmapRefData *>(m_refData);
+        selfdata->m_hasAlpha = data->m_hasAlpha;
     }
     else
 #endif // wxUSE_WXDIB
     {
         // copy the bitmap data
-        self->m_refData = new wxBitmapRefData(*data);
+        selfdata = new wxBitmapRefData(*data);
+        self->m_refData = selfdata;
     }
 
-    wxBitmapRefData * const
-        selfdata = wx_static_cast(wxBitmapRefData *, m_refData);
-
     // copy also the mask
     wxMask * const maskSrc = data->GetMask();
     if ( maskSrc )
@@ -510,11 +512,6 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
 #endif
 }
 
-wxBitmap::wxBitmap(int w, int h, int d)
-{
-    (void)Create(w, h, d);
-}
-
 wxBitmap::wxBitmap(int w, int h, const wxDC& dc)
 {
     (void)Create(w, h, dc);
@@ -540,7 +537,7 @@ bool wxBitmap::Create(int width, int height, const wxDC& dc)
     wxCHECK_MSG( dc.IsOk(), false, _T("invalid HDC in wxBitmap::Create()") );
 
     const wxMSWDCImpl *impl = wxDynamicCast( dc.GetImpl(), wxMSWDCImpl );
-    
+
     if (impl)
         return DoCreate(width, height, -1, impl->GetHDC());
     else
@@ -816,7 +813,7 @@ bool wxBitmap::CreateFromImage(const wxImage& image, const wxDC& dc)
                     _T("invalid HDC in wxBitmap::CreateFromImage()") );
 
     const wxMSWDCImpl *impl = wxDynamicCast( dc.GetImpl(), wxMSWDCImpl );
-    
+
     if (impl)
         return CreateFromImage(image, -1, impl->GetHDC());
     else
@@ -839,14 +836,17 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
     if ( !dib.IsOk() )
         return false;
 
-    if ( depth == -1 )
-        depth = dib.GetDepth(); // Get depth from image if none specified
+    const bool hasAlpha = image.HasAlpha();
+    
+    if (depth == -1)
+      depth = dib.GetDepth();
 
     // store the bitmap parameters
-    wxBitmapRefData *refData = new wxBitmapRefData;
+    wxBitmapRefData * const refData = new wxBitmapRefData;
     refData->m_width = w;
     refData->m_height = h;
-    refData->m_hasAlpha = image.HasAlpha();
+    refData->m_hasAlpha = hasAlpha;
+    refData->m_depth = depth;
 
     m_refData = refData;
 
@@ -857,20 +857,17 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
     // are we going to use DIB?
     //
     // NB: DDBs don't support alpha so if we have alpha channel we must use DIB
-    if ( image.HasAlpha() || wxShouldCreateDIB(w, h, depth, hdc) )
+    if ( hasAlpha || wxShouldCreateDIB(w, h, depth, hdc) )
     {
         // don't delete the DIB section in dib object dtor
         hbitmap = dib.Detach();
 
         refData->m_isDIB = true;
-        refData->m_depth = depth;
     }
 #ifndef ALWAYS_USE_DIB
     else // we need to convert DIB to DDB
     {
         hbitmap = dib.CreateDDB((HDC)hdc);
-
-        refData->m_depth = depth;
     }
 #endif // !ALWAYS_USE_DIB
 
@@ -1130,7 +1127,7 @@ wxBitmap wxBitmap::GetSubBitmapOfHDC( const wxRect& rect, WXHDC hdc ) const
 
     {
         SelectInHDC selectDst(dcDst, GetHbitmapOf(ret));
-               
+
         if ( !selectDst )
         {
             wxLogLastError(_T("SelectObject(destBitmap)"));
@@ -1173,13 +1170,13 @@ wxBitmap wxBitmap::GetSubBitmapOfHDC( const wxRect& rect, WXHDC hdc ) const
 wxPalette* wxBitmap::GetPalette() const
 {
     return GetBitmapData() ? &GetBitmapData()->m_bitmapPalette
-                           : (wxPalette *) NULL;
+                           : NULL;
 }
 #endif
 
 wxMask *wxBitmap::GetMask() const
 {
-    return GetBitmapData() ? GetBitmapData()->GetMask() : (wxMask *) NULL;
+    return GetBitmapData() ? GetBitmapData()->GetMask() : NULL;
 }
 
 wxBitmap wxBitmap::GetMaskBitmap() const
@@ -1191,14 +1188,14 @@ wxBitmap wxBitmap::GetMaskBitmap() const
     return bmp;
 }
 
-#ifdef __WXDEBUG__
-
 wxDC *wxBitmap::GetSelectedInto() const
 {
-    return GetBitmapData() ? GetBitmapData()->m_selectedInto : (wxDC *) NULL;
-}
-
+#if wxDEBUG_LEVEL
+    return GetBitmapData() ? GetBitmapData()->m_selectedInto : NULL;
+#else
+    return NULL;
 #endif
+}
 
 void wxBitmap::UseAlpha()
 {
@@ -1215,15 +1212,15 @@ bool wxBitmap::HasAlpha() const
 // wxBitmap setters
 // ----------------------------------------------------------------------------
 
-#ifdef __WXDEBUG__
-
 void wxBitmap::SetSelectedInto(wxDC *dc)
 {
+#if wxDEBUG_LEVEL
     if ( GetBitmapData() )
         GetBitmapData()->m_selectedInto = dc;
-}
-
+#else
+    wxUnusedVar(dc);
 #endif
+}
 
 #if wxUSE_PALETTE