#endif // Win16/Win32
}
+bool wxBitmap::CopyFromDIB(const wxDIB& dib)
+{
+ wxCHECK_MSG( dib.IsOk(), FALSE, _T("invalid DIB in CopyFromDIB") );
+
+ HBITMAP hbitmap = dib.CreateDDB();
+ if ( !hbitmap )
+ return FALSE;
+
+ 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
+
+ return TRUE;
+}
+
wxBitmap::~wxBitmap()
{
}
hbmp = dib.Detach();
GetBitmapData()->m_depth = d;
- GetBitmapData()->m_hasAlpha = d == 32; // 32bpp DIBs have alpha channel
}
else // create a DDB
{
}
else // we need to convert DIB to DDB
{
- // create and set the device-dependent bitmap
- //
- // VZ: why don't we just use SetDIBits() instead? because of the
- // palette or is there some other reason?
- hbitmap = ::CreateCompatibleBitmap(hdc ? (HDC)hdc : ScreenHDC(), w, h);
- if ( !hbitmap )
- {
- wxLogLastError(_T("CreateCompatibleBitmap()"));
-
- return FALSE;
- }
-
- MemoryHDC hdcMem;
- SelectInHDC select(hdcMem, hbitmap);
- if ( !select )
- {
- wxLogLastError(_T("SelectObjct(hBitmap)"));
- }
-
-#if wxUSE_PALETTE
- const wxPalette& palette = image.GetPalette();
-
- HPALETTE hOldPalette;
- if ( palette.Ok() )
- {
- SetPalette(palette);
-
- hOldPalette = ::SelectPalette
- (
- hdcMem,
- GetHpaletteOf(palette),
- FALSE // ignored for hdcMem
- );
-
- if ( !hOldPalette )
- {
- wxLogLastError(_T("SelectPalette()"));
- }
-
- if ( ::RealizePalette(hdcMem) == GDI_ERROR )
- {
- wxLogLastError(_T("RealizePalette()"));
- }
- }
- else // no valid palette
- {
- hOldPalette = 0;
- }
-#endif // wxUSE_PALETTE
-
- DIBSECTION ds;
- if ( !::GetObject(dib.GetHandle(), sizeof(ds), &ds) )
- {
- wxLogLastError(_T("GetObject(hDIB)"));
- }
-
- if ( ::StretchDIBits(hdcMem,
- 0, 0, w, h,
- 0, 0, w, h,
- dib.GetData(),
- (BITMAPINFO *)&ds.dsBmih,
- DIB_RGB_COLORS,
- SRCCOPY) == GDI_ERROR )
- {
- wxLogLastError(_T("StretchDIBits()"));
-
- return FALSE;
- }
-
-#if wxUSE_PALETTE
- if ( hOldPalette )
- {
- ::SelectPalette(hdcMem, hOldPalette, FALSE);
- }
-#endif // wxUSE_PALETTE
+ hbitmap = dib.CreateDDB((HDC)hdc);
refData->m_depth = depth == -1 ? wxDisplayDepth() : depth;
}
return TRUE;
}
-// ----------------------------------------------------------------------------
-// TODO: to be replaced by something better
-// ----------------------------------------------------------------------------
-
-// Creates a bitmap that matches the device context, from
-// an arbitray bitmap. At present, the original bitmap must have an
-// associated palette. TODO: use a default palette if no palette exists.
-// Contributed by Frederic Villeneuve <frederic.villeneuve@natinst.com>
-wxBitmap wxBitmap::GetBitmapForDC(wxDC& dc) const
-{
-#ifdef __WXMICROWIN__
- return *this;
-#else
- wxMemoryDC memDC;
- wxBitmap tmpBitmap(GetWidth(), GetHeight(), dc.GetDepth());
- HPALETTE hPal = (HPALETTE) NULL;
- LPBITMAPINFO lpDib;
- void *lpBits = (void*) NULL;
-
-#if wxUSE_PALETTE
- if( GetPalette() && GetPalette()->Ok() )
- {
- tmpBitmap.SetPalette(*GetPalette());
- memDC.SelectObject(tmpBitmap);
- memDC.SetPalette(*GetPalette());
- hPal = (HPALETTE)GetPalette()->GetHPALETTE();
- }
- else
- {
- hPal = (HPALETTE) ::GetStockObject(DEFAULT_PALETTE);
- wxPalette palette;
- palette.SetHPALETTE( (WXHPALETTE)hPal );
- tmpBitmap.SetPalette( palette );
- memDC.SelectObject(tmpBitmap);
- memDC.SetPalette( palette );
- }
-#else // !wxUSE_PALETTE
- hPal = (HPALETTE) ::GetStockObject(DEFAULT_PALETTE);
-#endif // wxUSE_PALETTE/!wxUSE_PALETTE
-
- // set the height negative because in a DIB the order of the lines is
- // reversed
- if ( !wxCreateDIB(GetWidth(), -GetHeight(), GetDepth(), hPal, &lpDib) )
- {
- return wxNullBitmap;
- }
-
- lpBits = malloc(lpDib->bmiHeader.biSizeImage);
-
- ::GetBitmapBits(GetHbitmap(), lpDib->bmiHeader.biSizeImage, lpBits);
-
- ::SetDIBitsToDevice(GetHdcOf(memDC), 0, 0,
- GetWidth(), GetHeight(),
- 0, 0, 0, GetHeight(),
- lpBits, lpDib, DIB_RGB_COLORS);
-
- free(lpBits);
-
- wxFreeDIB(lpDib);
-
- return tmpBitmap;
-#endif
-}
-
// ----------------------------------------------------------------------------
// wxMask
// ----------------------------------------------------------------------------
#endif
// ----------------------------------------------------------------------------
-// other helper functions
+// global helper functions implemented here
// ----------------------------------------------------------------------------
-extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h)
+// helper of wxBitmapToHICON/HCURSOR
+static
+HICON wxBitmapToIconOrCursor(const wxBitmap& bmp,
+ bool iconWanted,
+ int hotSpotX,
+ int hotSpotY)
+{
+ if ( !bmp.Ok() )
+ {
+ // we can't create an icon/cursor form nothing
+ return 0;
+ }
+
+ wxMask *mask = bmp.GetMask();
+ if ( !mask )
+ {
+ // we must have a mask for an icon, so even if it's probably incorrect,
+ // do create it (grey is the "standard" transparent colour)
+ mask = new wxMask(bmp, *wxLIGHT_GREY);
+ }
+
+ ICONINFO iconInfo;
+ iconInfo.fIcon = iconWanted; // do we want an icon or a cursor?
+ if ( !iconWanted )
+ {
+ iconInfo.xHotspot = hotSpotX;
+ iconInfo.yHotspot = hotSpotY;
+ }
+
+ iconInfo.hbmMask = wxInvertMask((HBITMAP)mask->GetMaskBitmap());
+ iconInfo.hbmColor = GetHbitmapOf(bmp);
+
+ // black out the transparent area to preserve background colour, because
+ // Windows blits the original bitmap using SRCINVERT (XOR) after applying
+ // the mask to the dest rect.
+ {
+ MemoryHDC dcSrc, dcDst;
+ SelectInHDC selectMask(dcSrc, (HBITMAP)mask->GetMaskBitmap()),
+ selectBitmap(dcDst, iconInfo.hbmColor);
+
+ if ( !::BitBlt(dcDst, 0, 0, bmp.GetWidth(), bmp.GetHeight(),
+ dcSrc, 0, 0, SRCAND) )
+ {
+ wxLogLastError(_T("BitBlt"));
+ }
+ }
+
+ HICON hicon = ::CreateIconIndirect(&iconInfo);
+
+ if ( !bmp.GetMask() )
+ {
+ // we created the mask, now delete it
+ delete mask;
+ }
+
+ // delete the inverted mask bitmap we created as well
+ ::DeleteObject(iconInfo.hbmMask);
+
+ return hicon;
+}
+
+HICON wxBitmapToHICON(const wxBitmap& bmp)
+{
+ return wxBitmapToIconOrCursor(bmp, TRUE, 0, 0);
+}
+
+HCURSOR wxBitmapToHCURSOR(const wxBitmap& bmp, int hotSpotX, int hotSpotY)
+{
+ return (HCURSOR)wxBitmapToIconOrCursor(bmp, FALSE, hotSpotX, hotSpotY);
+}
+
+HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h)
{
#ifndef __WXMICROWIN__
wxCHECK_MSG( hbmpMask, 0, _T("invalid bitmap in wxInvertMask") );
projects / wxWidgets.git / blobdiff