Fix broken and missing DataView interface items for Phoenix

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

diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp
index b0e759a7b90517b86d00b986aeb9e0eb81ccadd3..b910da5380b68a6d6a382de9b2f086baa163afc8 100644 (file)
--- a/src/msw/bitmap.cpp
+++ b/src/msw/bitmap.cpp
@@ -39,6 +39,7 @@
     #include "wx/image.h"
 #endif
 
     #include "wx/image.h"
 #endif
 

+#include "wx/scopedptr.h"

 #include "wx/msw/private.h"
 #include "wx/msw/dc.h"
 
 #include "wx/msw/private.h"
 #include "wx/msw/dc.h"
 


@@ -62,12 +63,14 @@
 class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData
 {
 public:
 class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData
 {
 public:

-    wxBitmapRefData();
+    wxBitmapRefData() { Init(); }

     wxBitmapRefData(const wxBitmapRefData& data);
     virtual ~wxBitmapRefData() { Free(); }
 
     virtual void Free();
 
     wxBitmapRefData(const wxBitmapRefData& data);
     virtual ~wxBitmapRefData() { Free(); }
 
     virtual void Free();
 

+    void CopyFromDIB(const wxDIB& dib);
+

     // set the mask object to use as the mask, we take ownership of it
     void SetMask(wxMask *mask)
     {
     // set the mask object to use as the mask, we take ownership of it
     void SetMask(wxMask *mask)
     {


@@ -114,6 +117,8 @@ public:
     bool m_isDIB;
 
 private:
     bool m_isDIB;
 
 private:

+    void Init();
+

     // optional mask for transparent drawing
     wxMask       *m_bitmapMask;
 
     // optional mask for transparent drawing
     wxMask       *m_bitmapMask;
 


@@ -183,7 +188,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
 // wxBitmapRefData
 // ----------------------------------------------------------------------------
 
 // wxBitmapRefData
 // ----------------------------------------------------------------------------
 

-wxBitmapRefData::wxBitmapRefData()
+void wxBitmapRefData::Init()

 {
 #if wxDEBUG_LEVEL
     m_selectedInto = NULL;
 {
 #if wxDEBUG_LEVEL
     m_selectedInto = NULL;


@@ -202,23 +207,25 @@ wxBitmapRefData::wxBitmapRefData()
 wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data)
                : wxGDIImageRefData(data)
 {
 wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data)
                : wxGDIImageRefData(data)
 {

-#if wxDEBUG_LEVEL
-    m_selectedInto = NULL;
-#endif
+    Init();

 
     // (deep) copy the mask if present
 
     // (deep) copy the mask if present

-    m_bitmapMask = NULL;

     if (data.m_bitmapMask)
         m_bitmapMask = new wxMask(*data.m_bitmapMask);
 
     if (data.m_bitmapMask)
         m_bitmapMask = new wxMask(*data.m_bitmapMask);
 

-    // FIXME: we don't copy m_hBitmap currently but we should, see wxBitmap::
-    //        CloneGDIRefData()
-
-    wxASSERT_MSG( !data.m_isDIB,
+    wxASSERT_MSG( !data.m_dib,

                     wxT("can't copy bitmap locked for raw access!") );
                     wxT("can't copy bitmap locked for raw access!") );

-    m_isDIB = false;

 
     m_hasAlpha = data.m_hasAlpha;
 
     m_hasAlpha = data.m_hasAlpha;

+
+#if wxUSE_WXDIB
+    // copy the other bitmap
+    if ( data.m_hBitmap )
+    {
+        wxDIB dib((HBITMAP)(data.m_hBitmap));
+        CopyFromDIB(dib);
+    }
+#endif // wxUSE_WXDIB

 }
 
 void wxBitmapRefData::Free()
 }
 
 void wxBitmapRefData::Free()


@@ -241,6 +248,35 @@ void wxBitmapRefData::Free()
     wxDELETE(m_bitmapMask);
 }
 
     wxDELETE(m_bitmapMask);
 }
 

+void wxBitmapRefData::CopyFromDIB(const wxDIB& dib)
+{
+    wxCHECK_RET( !IsOk(), "bitmap already initialized" );
+    wxCHECK_RET( dib.IsOk(), wxT("invalid DIB in CopyFromDIB") );
+
+#ifdef SOMETIMES_USE_DIB
+    HBITMAP hbitmap = dib.CreateDDB();
+    if ( !hbitmap )
+        return;
+    m_isDIB = false;
+#else // ALWAYS_USE_DIB
+    HBITMAP hbitmap = const_cast<wxDIB &>(dib).Detach();
+    m_isDIB = true;
+#endif // SOMETIMES_USE_DIB/ALWAYS_USE_DIB
+
+    m_width = dib.GetWidth();
+    m_height = dib.GetHeight();
+    m_depth = dib.GetDepth();
+
+    m_hBitmap = (WXHBITMAP)hbitmap;
+
+#if wxUSE_PALETTE
+    wxPalette *palette = dib.CreatePalette();
+    if ( palette )
+        m_bitmapPalette = *palette;
+    delete palette;
+#endif // wxUSE_PALETTE
+}
+

 // ----------------------------------------------------------------------------
 // wxBitmap creation
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxBitmap creation
 // ----------------------------------------------------------------------------


@@ -250,46 +286,9 @@ wxGDIImageRefData *wxBitmap::CreateData() const
     return new wxBitmapRefData;
 }
 
     return new wxBitmapRefData;
 }
 

-wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *dataOrig) const
+wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *data) const

 {
 {

-    const wxBitmapRefData *
-        data = static_cast<const wxBitmapRefData *>(dataOrig);
-    if ( !data )
-        return NULL;
-
-    // FIXME: this method is backwards, it should just create a new
-    //        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 = 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
-        selfdata = new wxBitmapRefData(*data);
-        self->m_refData = selfdata;
-    }
-
-    // copy also the mask
-    wxMask * const maskSrc = data->GetMask();
-    if ( maskSrc )
-    {
-        selfdata->SetMask(new wxMask(*maskSrc));
-    }
-
-    return selfdata;
+    return new wxBitmapRefData(*static_cast<const wxBitmapRefData *>(data));

 }
 
 bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon,
 }
 
 bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon,


@@ -342,8 +341,9 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon,
                     wxDIB dib(iconInfo.hbmColor);
                     if (dib.IsOk())
                     {
                     wxDIB dib(iconInfo.hbmColor);
                     if (dib.IsOk())
                     {

-                        const unsigned char* pixels = dib.GetData();
-                        for (int idx = 0; idx < w*h*4; idx+=4)
+                        unsigned char* const pixels = dib.GetData();
+                        int idx;
+                        for ( idx = 0; idx < w*h*4; idx += 4 )

                         {
                             if (pixels[idx+3] != 0)
                             {
                         {
                             if (pixels[idx+3] != 0)
                             {


@@ -353,6 +353,25 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon,
                                 break;
                             }
                         }
                                 break;
                             }
                         }

+
+                        if ( refData->m_hasAlpha )
+                        {
+                            // If we do have alpha, ensure we use premultiplied
+                            // data for our pixels as this is what the bitmaps
+                            // created in other ways do and this is necessary
+                            // for e.g. AlphaBlend() to work with this bitmap.
+                            for ( idx = 0; idx < w*h*4; idx += 4 )
+                            {
+                                const unsigned char a = pixels[idx+3];
+
+                                pixels[idx]   = ((pixels[idx]  *a) + 127)/255;
+                                pixels[idx+1] = ((pixels[idx+1]*a) + 127)/255;
+                                pixels[idx+2] = ((pixels[idx+2]*a) + 127)/255;
+                            }
+
+                            ::DeleteObject(refData->m_hBitmap);
+                            refData->m_hBitmap = dib.Detach();
+                        }

                     }
                 }
             }
                     }
                 }
             }


@@ -387,7 +406,7 @@ bool wxBitmap::CopyFromCursor(const wxCursor& cursor, wxBitmapTransparency trans
 {
     UnRef();
 
 {
     UnRef();
 

-    if ( !cursor.Ok() )
+    if ( !cursor.IsOk() )

         return false;
 
     return CopyFromIconOrCursor(cursor, transp);
         return false;
 
     return CopyFromIconOrCursor(cursor, transp);


@@ -397,7 +416,7 @@ bool wxBitmap::CopyFromIcon(const wxIcon& icon, wxBitmapTransparency transp)
 {
     UnRef();
 
 {
     UnRef();
 

-    if ( !icon.Ok() )
+    if ( !icon.IsOk() )

         return false;
 
     return CopyFromIconOrCursor(icon, transp);
         return false;
 
     return CopyFromIconOrCursor(icon, transp);


@@ -407,37 +426,13 @@ bool wxBitmap::CopyFromIcon(const wxIcon& icon, wxBitmapTransparency transp)
 
 bool wxBitmap::CopyFromDIB(const wxDIB& dib)
 {
 
 bool wxBitmap::CopyFromDIB(const wxDIB& dib)
 {

-    wxCHECK_MSG( dib.IsOk(), false, wxT("invalid DIB in CopyFromDIB") );
-
-#ifdef SOMETIMES_USE_DIB
-    HBITMAP hbitmap = dib.CreateDDB();
-    if ( !hbitmap )
+    wxScopedPtr<wxBitmapRefData> newData(new wxBitmapRefData);
+    newData->CopyFromDIB(dib);
+    if ( !newData->IsOk() )

         return false;
         return false;

-#else // ALWAYS_USE_DIB
-    HBITMAP hbitmap = const_cast<wxDIB &>(dib).Detach();
-#endif // SOMETIMES_USE_DIB/ALWAYS_USE_DIB

 
     UnRef();
 
     UnRef();

-
-    wxBitmapRefData *refData = new wxBitmapRefData;
-    m_refData = refData;
-
-    refData->m_width = dib.GetWidth();
-    refData->m_height = dib.GetHeight();
-    refData->m_depth = dib.GetDepth();
-
-    refData->m_hBitmap = (WXHBITMAP)hbitmap;
-
-#if wxUSE_PALETTE
-    wxPalette *palette = dib.CreatePalette();
-    if ( palette )
-    {
-        refData->m_bitmapPalette = *palette;
-    }
-
-    delete palette;
-#endif // wxUSE_PALETTE
-
+    m_refData = newData.release();

     return true;
 }
 
     return true;
 }
 


@@ -605,7 +600,7 @@ bool wxBitmap::DoCreate(int w, int h, int d, WXHDC hdc)
 
     SetHBITMAP((WXHBITMAP)hbmp);
 
 
     SetHBITMAP((WXHBITMAP)hbmp);
 

-    return Ok();
+    return IsOk();

 }
 
 #if wxUSE_IMAGE
 }
 
 #if wxUSE_IMAGE


@@ -739,7 +734,7 @@ wxImage wxBitmap::ConvertToImage() const
     // so the 'depth' argument is ignored.
     // TODO: transparency (create a mask image)
 
     // so the 'depth' argument is ignored.
     // TODO: transparency (create a mask image)
 

-    if (!Ok())
+    if (!IsOk())

     {
         wxFAIL_MSG( wxT("bitmap is invalid") );
         return wxNullImage;
     {
         wxFAIL_MSG( wxT("bitmap is invalid") );
         return wxNullImage;


@@ -747,7 +742,7 @@ wxImage wxBitmap::ConvertToImage() const
 
     wxImage image;
 
 
     wxImage image;
 

-    wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
+    wxCHECK_MSG( IsOk(), wxNullImage, wxT("invalid bitmap") );

 
     // create an wxImage object
     int width = GetWidth();
 
     // create an wxImage object
     int width = GetWidth();


@@ -823,7 +818,7 @@ bool wxBitmap::CreateFromImage(const wxImage& image, const wxDC& dc)
 
 bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
 {
 
 bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
 {

-    wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
+    wxCHECK_MSG( image.IsOk(), false, wxT("invalid image") );

 
     UnRef();
 
 
     UnRef();
 


@@ -929,7 +924,7 @@ wxImage wxBitmap::ConvertToImage() const
 
     // and then DIB to our wxImage
     wxImage image = dib.ConvertToImage();
 
     // and then DIB to our wxImage
     wxImage image = dib.ConvertToImage();

-    if ( !image.Ok() )
+    if ( !image.IsOk() )

     {
         return wxNullImage;
     }
     {
         return wxNullImage;
     }


@@ -1039,7 +1034,7 @@ bool wxBitmap::LoadFile(const wxString& filename, wxBitmapType type)
     else // no bitmap handler found
     {
         wxImage image;
     else // no bitmap handler found
     {
         wxImage image;

-        if ( image.LoadFile( filename, type ) && image.Ok() )
+        if ( image.LoadFile( filename, type ) && image.IsOk() )

         {
             *this = wxBitmap(image);
 
         {
             *this = wxBitmap(image);
 


@@ -1084,7 +1079,7 @@ bool wxBitmap::SaveFile(const wxString& filename,
     {
         // FIXME what about palette? shouldn't we use it?
         wxImage image = ConvertToImage();
     {
         // FIXME what about palette? shouldn't we use it?
         wxImage image = ConvertToImage();

-        if ( image.Ok() )
+        if ( image.IsOk() )

         {
             return image.SaveFile(filename, type);
         }
         {
             return image.SaveFile(filename, type);
         }


@@ -1106,14 +1101,14 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect ) const
 
 wxBitmap wxBitmap::GetSubBitmapOfHDC( const wxRect& rect, WXHDC hdc ) const
 {
 
 wxBitmap wxBitmap::GetSubBitmapOfHDC( const wxRect& rect, WXHDC hdc ) const
 {

-    wxCHECK_MSG( Ok() &&
+    wxCHECK_MSG( IsOk() &&

                  (rect.x >= 0) && (rect.y >= 0) &&
                  (rect.x+rect.width <= GetWidth()) &&
                  (rect.y+rect.height <= GetHeight()),
                  wxNullBitmap, wxT("Invalid bitmap or bitmap region") );
 
     wxBitmap ret( rect.width, rect.height, GetDepth() );
                  (rect.x >= 0) && (rect.y >= 0) &&
                  (rect.x+rect.width <= GetWidth()) &&
                  (rect.y+rect.height <= GetHeight()),
                  wxNullBitmap, wxT("Invalid bitmap or bitmap region") );
 
     wxBitmap ret( rect.width, rect.height, GetDepth() );

-    wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
+    wxASSERT_MSG( ret.IsOk(), wxT("GetSubBitmap error") );

 
 #ifndef __WXMICROWIN__
     // handle alpha channel, if any
 
 #ifndef __WXMICROWIN__
     // handle alpha channel, if any


@@ -1248,7 +1243,7 @@ void wxBitmap::SetMask(wxMask *mask)
 void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp)
 {
 #if wxUSE_WXDIB
 void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp)
 {
 #if wxUSE_WXDIB

-    if ( !Ok() )
+    if ( !IsOk() )

     {
         // no bitmap, no data (raw or otherwise)
         return NULL;
     {
         // no bitmap, no data (raw or otherwise)
         return NULL;


@@ -1326,7 +1321,7 @@ void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp)
 void wxBitmap::UngetRawData(wxPixelDataBase& dataBase)
 {
 #if wxUSE_WXDIB
 void wxBitmap::UngetRawData(wxPixelDataBase& dataBase)
 {
 #if wxUSE_WXDIB

-    if ( !Ok() )
+    if ( !IsOk() )

         return;
 
     if ( !&dataBase )
         return;
 
     if ( !&dataBase )


@@ -1427,7 +1422,7 @@ wxMask::~wxMask()
 bool wxMask::Create(const wxBitmap& bitmap)
 {
 #ifndef __WXMICROWIN__
 bool wxMask::Create(const wxBitmap& bitmap)
 {
 #ifndef __WXMICROWIN__

-    wxCHECK_MSG( bitmap.Ok() && bitmap.GetDepth() == 1, false,
+    wxCHECK_MSG( bitmap.IsOk() && bitmap.GetDepth() == 1, false,

                  wxT("can't create mask from invalid or not monochrome bitmap") );
 
     if ( m_maskBitmap )
                  wxT("can't create mask from invalid or not monochrome bitmap") );
 
     if ( m_maskBitmap )


@@ -1468,7 +1463,7 @@ bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex)
     }
 
 #if wxUSE_PALETTE
     }
 
 #if wxUSE_PALETTE

-    if (bitmap.Ok() && bitmap.GetPalette()->Ok())
+    if (bitmap.IsOk() && bitmap.GetPalette()->IsOk())

     {
         unsigned char red, green, blue;
         if (bitmap.GetPalette()->GetRGB(paletteIndex, &red, &green, &blue))
     {
         unsigned char red, green, blue;
         if (bitmap.GetPalette()->GetRGB(paletteIndex, &red, &green, &blue))


@@ -1487,7 +1482,7 @@ bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex)
 bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
 {
 #ifndef __WXMICROWIN__
 bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
 {
 #ifndef __WXMICROWIN__

-    wxCHECK_MSG( bitmap.Ok(), false, wxT("invalid bitmap in wxMask::Create") );
+    wxCHECK_MSG( bitmap.IsOk(), false, wxT("invalid bitmap in wxMask::Create") );

 
     if ( m_maskBitmap )
     {
 
     if ( m_maskBitmap )
     {


@@ -1625,7 +1620,7 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp,
                              int hotSpotX,
                              int hotSpotY)
 {
                              int hotSpotX,
                              int hotSpotY)
 {

-    if ( !bmp.Ok() )
+    if ( !bmp.IsOk() )

     {
         // we can't create an icon/cursor form nothing
         return 0;
     {
         // we can't create an icon/cursor form nothing
         return 0;


@@ -1633,9 +1628,25 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp,
 
     if ( bmp.HasAlpha() )
     {
 
     if ( bmp.HasAlpha() )
     {

+        HBITMAP hbmp;
+
+#if wxUSE_WXDIB && wxUSE_IMAGE
+        // CreateIconIndirect() requires non-pre-multiplied pixel data on input
+        // as it does pre-multiplication internally itself so we need to create
+        // a special DIB in such format to pass to it. This is inefficient but
+        // better than creating an icon with wrong colours.
+        AutoHBITMAP hbmpRelease;
+        hbmp = wxDIB(bmp.ConvertToImage(),
+                     wxDIB::PixelFormat_NotPreMultiplied).Detach();
+        hbmpRelease.Init(hbmp);
+#else // !(wxUSE_WXDIB && wxUSE_IMAGE)
+        hbmp = GetHbitmapOf(bmp);
+#endif // wxUSE_WXDIB && wxUSE_IMAGE
+

         // Create an empty mask bitmap.
         // it doesn't seem to work if we mess with the mask at all.
         // Create an empty mask bitmap.
         // it doesn't seem to work if we mess with the mask at all.

-        HBITMAP hMonoBitmap = CreateBitmap(bmp.GetWidth(),bmp.GetHeight(),1,1,NULL);
+        AutoHBITMAP
+            hMonoBitmap(CreateBitmap(bmp.GetWidth(),bmp.GetHeight(),1,1,NULL));

 
         ICONINFO iconInfo;
         wxZeroMemory(iconInfo);
 
         ICONINFO iconInfo;
         wxZeroMemory(iconInfo);


@@ -1647,13 +1658,9 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp,
         }
 
         iconInfo.hbmMask = hMonoBitmap;
         }
 
         iconInfo.hbmMask = hMonoBitmap;

-        iconInfo.hbmColor = GetHbitmapOf(bmp);
-
-        HICON hicon = ::CreateIconIndirect(&iconInfo);
-
-        ::DeleteObject(hMonoBitmap);
+        iconInfo.hbmColor = hbmp;

 
 

-        return hicon;
+        return ::CreateIconIndirect(&iconInfo);

     }
 
     wxMask* mask = bmp.GetMask();
     }
 
     wxMask* mask = bmp.GetMask();


@@ -1674,7 +1681,8 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp,
         iconInfo.yHotspot = hotSpotY;
     }
 
         iconInfo.yHotspot = hotSpotY;
     }
 

-    iconInfo.hbmMask = wxInvertMask((HBITMAP)mask->GetMaskBitmap());
+    AutoHBITMAP hbmpMask(wxInvertMask((HBITMAP)mask->GetMaskBitmap()));
+    iconInfo.hbmMask = hbmpMask;

     iconInfo.hbmColor = GetHbitmapOf(bmp);
 
     // black out the transparent area to preserve background colour, because
     iconInfo.hbmColor = GetHbitmapOf(bmp);
 
     // black out the transparent area to preserve background colour, because


@@ -1700,9 +1708,6 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp,
         delete mask;
     }
 
         delete mask;
     }
 

-    // delete the inverted mask bitmap we created as well
-    ::DeleteObject(iconInfo.hbmMask);
-

     return hicon;
 }
 
     return hicon;
 }