// 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"
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; idx<w*h*4; idx+=4)
+ {
+ if (pixels[idx+3] != 0)
+ {
+ // If there is an alpha byte that is non-zero then set the
+ // alpha flag and bail out of the loop.
+ refData->m_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);
{
// 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 );
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;
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
// 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;
#ifndef __WXMICROWIN__
// handle alpha channel, if any
if (HasAlpha())
- ret.UseAlpha();
+ ret.UseAlpha();
// copy bitmap data
MemoryHDC dcSrc,
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
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);
// 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;
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,
HICON hicon = ::CreateIconIndirect(&iconInfo);
- if ( !bmp.GetMask() )
+ if ( !bmp.GetMask() && !bmp.HasAlpha() )
{
// we created the mask, now delete it
delete mask;
projects / wxWidgets.git / blobdiff