X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/907173e51df6d2a91d65463ddf6ce810d3fd921a..f3ebbc0ac81967b5ef42414ffd753905075940dd:/src/msw/bitmap.cpp diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp index 16e23a409d..fb6d081fb6 100644 --- a/src/msw/bitmap.cpp +++ b/src/msw/bitmap.cpp @@ -17,10 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "bitmap.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -310,10 +306,37 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) refData->m_hBitmap = (WXHBITMAP)iconInfo.hbmColor; - // the mask returned by GetIconInfo() is inversed compared to the usual - // wxWin convention - refData->SetMask(wxInvertMask(iconInfo.hbmMask, w, h)); - +#if wxUSE_WXDIB + // If the icon is 32 bits per pixel then it may have alpha channel data, + // although there are some icons that are 32 bpp but have no alpha... So + // convert to a DIB and manually check the 4th byte for each pixel. + BITMAP bm; + if ( ::GetObject(iconInfo.hbmColor, sizeof(BITMAP), (LPVOID)&bm) + && bm.bmBitsPixel == 32) + { + wxDIB dib(iconInfo.hbmColor); + if (dib.IsOk()) + { + unsigned char* pixels = dib.GetData(); + for (int idx=0; idxm_hasAlpha = true; + break; + } + } + } + } +#endif + if ( !refData->m_hasAlpha ) + { + // the mask returned by GetIconInfo() is inverted compared to the usual + // wxWin convention + refData->SetMask(wxInvertMask(iconInfo.hbmMask, w, h)); + } // delete the old one now as we don't need it any more ::DeleteObject(iconInfo.hbmMask); @@ -408,7 +431,7 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) { // we assume that it is in XBM format which is not quite the same as // the format CreateBitmap() wants because the order of bytes in the - // line is inversed! + // line is reversed! const size_t bytesPerLine = (width + 7) / 8; const size_t padding = bytesPerLine % 2; const size_t len = height * ( padding + bytesPerLine ); @@ -803,7 +826,8 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc) wxDIB dib(image); if ( !dib.IsOk() ) return false; - + if (depth == -1) + depth = dib.GetDepth(); // Get depth from image if none specified // store the bitmap parameters wxBitmapRefData *refData = new wxBitmapRefData; @@ -826,14 +850,14 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc) hbitmap = dib.Detach(); refData->m_isDIB = true; - refData->m_depth = dib.GetDepth(); + 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 == -1 ? dib.GetDepth() : depth; + refData->m_depth = depth; } #endif // !ALWAYS_USE_DIB @@ -843,9 +867,42 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc) // finally also set the mask if we have one if ( image.HasMask() ) { - SetMask(new wxMask(*this, wxColour(image.GetMaskRed(), - image.GetMaskGreen(), - image.GetMaskBlue()))); + const size_t len = 2*((w+15)/16); + BYTE *src = image.GetData(); + BYTE *data = new BYTE[h*len]; + memset(data, 0, h*len); + BYTE r = image.GetMaskRed(), + g = image.GetMaskGreen(), + b = image.GetMaskBlue(); + BYTE *dst = data; + for ( int y = 0; y < h; y++, dst += len ) + { + BYTE *dstLine = dst; + BYTE mask = 0x80; + for ( int x = 0; x < w; x++, src += 3 ) + { + if (src[0] != r || src[1] != g || src[2] != b) + *dstLine |= mask; + + if ( (mask >>= 1) == 0 ) + { + dstLine++; + mask = 0x80; + } + } + } + + hbitmap = ::CreateBitmap(w, h, 1, 1, data); + if ( !hbitmap ) + { + wxLogLastError(_T("CreateBitmap(mask)")); + } + else + { + SetMask(new wxMask((WXHBITMAP)hbitmap)); + } + + delete[] data; } return true; @@ -1031,7 +1088,7 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const #ifndef __WXMICROWIN__ // handle alpha channel, if any if (HasAlpha()) - ret.UseAlpha(); + ret.UseAlpha(); // copy bitmap data MemoryHDC dcSrc, @@ -1092,6 +1149,15 @@ wxMask *wxBitmap::GetMask() const return GetBitmapData() ? GetBitmapData()->GetMask() : (wxMask *) NULL; } +wxBitmap wxBitmap::GetMaskBitmap() const +{ + wxBitmap bmp; + wxMask *mask = GetMask(); + if ( mask ) + bmp.SetHBITMAP(mask->GetMaskBitmap()); + return bmp; +} + #ifdef __WXDEBUG__ wxDC *wxBitmap::GetSelectedInto() const @@ -1181,7 +1247,7 @@ void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) HBITMAP hDIB; if ( !GetBitmapData()->m_isDIB ) { - wxCHECK_MSG( !GetBitmapData()->m_dib, FALSE, + wxCHECK_MSG( !GetBitmapData()->m_dib, NULL, _T("GetRawData() may be called only once") ); wxDIB *dib = new wxDIB(*this); @@ -1530,7 +1596,7 @@ bool wxCreateDIB(long xSize, long ySize, long bitsPerPixel, // this value must be 1, 4, 8 or 24 so PixelDepth can only be lpDIBheader->bmiHeader.biBitCount = (WORD)(bitsPerPixel); lpDIBheader->bmiHeader.biCompression = BI_RGB; - lpDIBheader->bmiHeader.biSizeImage = xSize * abs(ySize) * bitsPerPixel >> 3; + lpDIBheader->bmiHeader.biSizeImage = (xSize * abs(ySize) * bitsPerPixel) >> 3; lpDIBheader->bmiHeader.biClrUsed = 256; @@ -1570,7 +1636,23 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp, return 0; } - wxMask *mask = bmp.GetMask(); + wxMask* mask; + wxBitmap newbmp; + if ( bmp.HasAlpha() ) + { + // Convert alpha to a mask. NOTE: It would be better to actually put + // the alpha into the icon instead of making a mask, but I don't have + // time to figure that out today. + wxImage img = bmp.ConvertToImage(); + img.ConvertAlphaToMask(); + newbmp = wxBitmap(img); + mask = newbmp.GetMask(); + } + else + { + mask = bmp.GetMask(); + } + if ( !mask ) { // we must have a mask for an icon, so even if it's probably incorrect, @@ -1607,7 +1689,7 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp, HICON hicon = ::CreateIconIndirect(&iconInfo); - if ( !bmp.GetMask() ) + if ( !bmp.GetMask() && !bmp.HasAlpha() ) { // we created the mask, now delete it delete mask;