m_hPict = NULL ;
m_hIcon = NULL ;
m_bitmapType = kMacBitmapTypeUnknownType ;
+ m_hasAlpha = false;
}
// TODO move this to a public function of Bitmap Ref
if ( no_bits == 1 )
{
M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
- MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) = wxMacCreateGWorld( the_width , the_height , no_bits ) ;
+ M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( the_width , the_height , no_bits ) ;
M_BITMAPDATA->m_ok = (MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) != NULL ) ;
CGrafPtr origPort ;
wxBitmapRefData *ref = (wxBitmapRefData *)ret.GetRefData();
ref->m_numColors = M_BITMAPDATA->m_numColors;
- ref->m_bitmapPalette = M_BITMAPDATA->m_bitmapPalette;
+#if wxUSE_PALETTE
+ ref->m_bitmapPalette = M_BITMAPDATA->m_bitmapPalette;
+#endif // wxUSE_PALETTE
ref->m_bitmapType = M_BITMAPDATA->m_bitmapType;
// Copy sub region of this bitmap
wxBitmap::wxBitmap(const wxImage& image, int depth)
{
wxCHECK_RET( image.Ok(), wxT("invalid image") )
- wxCHECK_RET( depth == -1, wxT("invalid bitmap depth") )
m_refData = new wxBitmapRefData();
M_BITMAPDATA->m_ok = isOk;
}
+#if wxUSE_PALETTE
wxPalette *wxBitmap::GetPalette() const
{
wxCHECK_MSG( Ok(), NULL, wxT("Invalid bitmap GetPalette()") );
M_BITMAPDATA->m_bitmapPalette = palette ;
}
+#endif // wxUSE_PALETTE
void wxBitmap::SetMask(wxMask *mask)
{
m_refData = new wxBitmapRefData;
// Remove existing mask if there is one.
- if (M_BITMAPDATA->m_bitmapMask)
- delete M_BITMAPDATA->m_bitmapMask;
+ delete M_BITMAPDATA->m_bitmapMask;
M_BITMAPDATA->m_bitmapMask = mask ;
}
wxCHECK_MSG( bitmap.Ok(), false, wxT("Invalid bitmap"));
- m_depth = bitmap.GetDepth() ;
+ m_depth = bitmap.GetDepth() ;
m_maskBitmap = wxMacCreateGWorld(bitmap.GetWidth(), bitmap.GetHeight(), bitmap.GetDepth() );
Rect rect = { 0,0, bitmap.GetHeight(), bitmap.GetWidth() };
GWorldPtr gworld = MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap);
PixMapHandle hPixMap = GetGWorldPixMap(gworld);
- wxCHECK_MSG( hPixMap, NULL, _T("failed to get PixMap from GWorld?") );
+ wxCHECK_MSG( hPixMap && *hPixMap, NULL,
+ _T("GetRawData(): failed to get PixMap from GWorld?") );
- if ( (*hPixMap)->pixelSize != bpp )
- {
- wxFAIL_MSG( _T("bpp mismatch in GetRawData()") );
-
- return NULL;
- }
+ wxCHECK_MSG( (*hPixMap)->pixelSize == bpp, NULL,
+ _T("GetRawData(): pixel format mismatch") );
if ( !LockPixels(hPixMap) )
{
data.m_height = GetHeight();
data.m_stride = (*hPixMap)->rowBytes & 0x7fff;
+ M_BITMAPDATA->m_hasAlpha = false;
+
return GetPixBaseAddr(hPixMap);
}
-void wxBitmap::UngetRawData(wxPixelDataBase& data)
+void wxBitmap::UngetRawData(wxPixelDataBase& dataBase)
{
if ( !Ok() )
return;
+ if ( M_BITMAPDATA->m_hasAlpha )
+ {
+ wxAlphaPixelData& data = (wxAlphaPixelData&)dataBase;
+
+ int w = data.GetWidth(),
+ h = data.GetHeight();
+
+ wxBitmap bmpMask(GetWidth(), GetHeight(), 32);
+ wxAlphaPixelData dataMask(bmpMask, data.GetOrigin(), wxSize(w, h));
+ wxAlphaPixelData::Iterator pMask(dataMask),
+ p(data);
+ for ( int y = 0; y < h; y++ )
+ {
+ wxAlphaPixelData::Iterator rowStartMask = pMask,
+ rowStart = p;
+
+ for ( int x = 0; x < w; x++ )
+ {
+ const wxAlphaPixelData::Iterator::ChannelType
+ alpha = p.Alpha();
+
+ pMask.Red() = alpha;
+ pMask.Green() = alpha;
+ pMask.Blue() = alpha;
+
+ ++p;
+ ++pMask;
+ }
+
+ p = rowStart;
+ p.OffsetY(data, 1);
+
+ pMask = rowStartMask;
+ pMask.OffsetY(dataMask, 1);
+ }
+
+ SetMask(new wxMask(bmpMask));
+ }
+
GWorldPtr gworld = MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap);
PixMapHandle hPixMap = GetGWorldPixMap(gworld);
if ( hPixMap )
void wxBitmap::UseAlpha()
{
- // nothing to do here so far
+ // remember that we are using alpha channel, we'll need to create a proper
+ // mask in UngetRawData()
+ M_BITMAPDATA->m_hasAlpha = true;
}