if (!IsKindOf(CLASSINFO(wxPrinterDC)))
{
HBITMAP hBitmap = (HBITMAP)rBmp.GetHBITMAP();
- wxBitmap vNewBitmap( rBmp.GetWidth()
- ,rBmp.GetHeight()
- ,rBmp.GetDepth()
- );
- HBITMAP hBitmapOld = ::GpiSetBitmap((HPS)GetHPS(), vNewBitmap.GetHBITMAP());
- LONG lOldTextground = ::GpiQueryColor((HPS)GetHPS());
- LONG lOldBackground = ::GpiQueryBackColor((HPS)GetHPS());
+ HBITMAP hBitmapOld;
vY = OS2Y(vY,rBmp.GetHeight());
,0, 0
,rBmp.GetWidth(), rBmp.GetHeight()
};
-
- if (m_textForegroundColour.Ok())
- {
- ::GpiSetColor( (HPS)GetHPS()
- ,m_textForegroundColour.GetPixel()
- );
- }
- if (m_textBackgroundColour.Ok())
- {
- ::GpiSetBackColor( (HPS)GetHPS()
- ,m_textBackgroundColour.GetPixel()
- );
- }
if (bUseMask)
{
wxMask* pMask = rBmp.GetMask();
- HPS hPS;
- HDC hDC;
- if (!IsKindOf(CLASSINFO(wxMemoryDC)))
+ if (pMask)
{
+ //
+ // Need to imitate ::MaskBlt in windows.
+ // 1) Extract the bits from from the bitmap.
+ // 2) Extract the bits from the mask
+ // 3) Using the mask bits do the following:
+ // A) If the mask byte is 00 leave the bitmap byte alone
+ // B) If the mask byte is FF copy the screen color into
+ // bitmap byte
+ // 4) Create a new bitmap and set its bits to the above result
+ // 5) Blit this to the screen PS
+ //
+ HBITMAP hMask = (HBITMAP)pMask->GetMaskBitmap();
+ HBITMAP hOldBitmap = NULLHANDLE;
+ HBITMAP hNewBitmap = NULLHANDLE;
+ unsigned char* pucBits; // buffer that will contain the bitmap data
+ unsigned char* pucBitsMask; // buffer that will contain the mask data
+ unsigned char* pucData; // pointer to use to traverse bitmap data
+ unsigned char* pucDataMask; // pointer to use to traverse mask data
+ LONG lHits;
+ ERRORID vError;
+ wxString sError;
+
+ //
+ // The usual Memory context creation stuff
+ //
DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
SIZEL vSize = {0, 0};
+ HDC hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+ HPS hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
- hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
- hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
- }
- else
- hPS = m_hPS;
+ //
+ // The usual bitmap header stuff
+ //
+ BITMAPINFOHEADER2 vHeader;
+ BITMAPINFO2 vInfo;
+
+ memset(&vHeader, '\0', 16);
+ vHeader.cbFix = 16;
+ vHeader.cx = (ULONG)rBmp.GetWidth();
+ vHeader.cy = (ULONG)rBmp.GetHeight();
+ vHeader.cPlanes = 1L;
+ vHeader.cBitCount = 24;
+
+ memset(&vInfo, '\0', 16);
+ vInfo.cbFix = 16;
+ vInfo.cx = (ULONG)rBmp.GetWidth();
+ vInfo.cy = (ULONG)rBmp.GetHeight();
+ vInfo.cPlanes = 1;
+ vInfo.cBitCount = 24; // Set to desired count going in
- if (pMask)
- {
- BITMAPINFOHEADER2 vHeader;
- BITMAPINFO2 vInfo;
- int nBytesPerLine = rBmp.GetWidth() * 3;
- unsigned char* pucData;
- LONG lScans = 0L;
- LONG alFormats[24]; // Max formats OS/2 PM supports
- ULONG ulBitcount;
- HBITMAP hMask = (HBITMAP)pMask->GetMaskBitmap();
- POINTL vPointMask[4] = { 0, 0, rBmp.GetWidth(), rBmp.GetHeight()
- ,0, 0, rBmp.GetWidth(), rBmp.GetHeight()
- };
-
- ::GpiSetBitmap(hPS, hMask);
-
- ::GpiQueryDeviceBitmapFormats(hPS, 24, alFormats);
- ulBitcount = alFormats[1]; // the best one
- if (ulBitcount > 24) // PM supports a max of 24
- ulBitcount = 24;
-
- vInfo.cbFix = 16;
- vInfo.cx = rBmp.GetWidth();
- vInfo.cy = rBmp.GetHeight();
- vInfo.cPlanes = 1;
- vInfo.cBitCount = ulBitcount;
- pucData = (unsigned char*)malloc(nBytesPerLine * rBmp.GetHeight());
+ //
+ // Create the buffers for data....all wxBitmaps are 24 bit internally
+ //
+ int nBytesPerLine = rBmp.GetWidth() * 3;
+ int nSizeDWORD = sizeof(DWORD);
+ int nLineBoundary = nBytesPerLine % nSizeDWORD;
+ int nPadding = 0;
+ int i;
+ int j;
+ LONG lScans = 0L;
+ LONG lColor = 0L;
+
+ //
+ // Need to get a background color for mask blitting
+ //
+ if (IsKindOf(CLASSINFO(wxPaintDC)))
+ {
+ wxPaintDC* pPaintDC = wxDynamicCast(this, wxPaintDC);
+
+ lColor = pPaintDC->m_pCanvas->GetBackgroundColour().GetPixel();
+ }
+ else if (GetBrush() != wxNullBrush)
+ lColor = GetBrush().GetColour().GetPixel();
+ else
+ lColor = m_textBackgroundColour.GetPixel();
+
+ //
+ // Bitmap must be ina double-word alligned address so we may
+ // have some padding to worry about
+ //
+ if (nLineBoundary > 0)
+ {
+ nPadding = nSizeDWORD - nLineBoundary;
+ nBytesPerLine += nPadding;
+ }
+ pucBits = (unsigned char *)malloc(nBytesPerLine * rBmp.GetHeight());
+ pucBitsMask = (unsigned char *)malloc(nBytesPerLine * rBmp.GetHeight());
+ memset(pucBits, '\0', (nBytesPerLine * rBmp.GetHeight()));
+ memset(pucBitsMask, '\0', (nBytesPerLine * rBmp.GetHeight()));
+
+ //
+ // Extract the bitmap and mask data
+ //
+ if ((hOldBitmap = ::GpiSetBitmap(hPS, hBitmap)) == HBM_ERROR)
+ {
+ vError = ::WinGetLastError(vHabmain);
+ sError = wxPMErrorToStr(vError);
+ }
if ((lScans = ::GpiQueryBitmapBits( hPS
,0L
,(LONG)rBmp.GetHeight()
- ,(PBYTE)pucData
+ ,(PBYTE)pucBits
,&vInfo
)) == GPI_ALTERROR)
{
- ERRORID vError;
- wxString sError;
-
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
- if ((hBitmapOld = ::GpiSetBitmap(hPS, (HBITMAP)vNewBitmap.GetHBITMAP())) == HBM_ERROR)
+ if ((hOldBitmap = ::GpiSetBitmap(hPS, hMask)) == HBM_ERROR)
{
- ERRORID vError;
- wxString sError;
-
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
- if ((lScans = ::GpiSetBitmapBits( hPS
- ,0
- ,(LONG)rBmp.GetHeight()
- ,(PBYTE)pucData
- ,&vInfo
- )) == GPI_ALTERROR)
+ if ((lScans = ::GpiQueryBitmapBits( hPS
+ ,0L
+ ,(LONG)rBmp.GetHeight()
+ ,(PBYTE)pucBitsMask
+ ,&vInfo
+ )) == GPI_ALTERROR)
{
- ERRORID vError;
- wxString sError;
-
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
- if ((hBitmapOld = ::GpiSetBitmap(hPS, NULLHANDLE)) == HBM_ERROR)
+
+ //
+ // Now set the bytes(bits) according to the mask values
+ // 3 bytes per pel...must handle one at a time
+ //
+ pucData = pucBits;
+ pucDataMask = pucBitsMask;
+
+ for (i = 0; i < rBmp.GetHeight(); i++)
{
- ERRORID vError;
- wxString sError;
+ for (j = 0; j < rBmp.GetWidth(); j++)
+ {
+ // Byte 1
+ if (*pucDataMask == 0x00) // leave bitmap byte alone
+ pucData++;
+ else
+ {
+ *pucData = (unsigned char)lColor;
+ pucData++;
+ }
+ // Byte 2
+ if (*(pucDataMask + 1) == 0x00) // leave bitmap byte alone
+ pucData++;
+ else
+ {
+ *pucData = (unsigned char)lColor >> 8;
+ pucData++;
+ }
+
+ // Byte 3
+ if (*(pucDataMask + 2) == 0x00) // leave bitmap byte alone
+ pucData++;
+ else
+ {
+ *pucData = (unsigned char)lColor >> 16;
+ pucData++;
+ }
+ pucDataMask += 3;
+ }
+ for (j = 0; j < nPadding; j++)
+ {
+ pucData++;
+ pucDataMask++;
+ }
+ }
+ //
+ // Create a new bitmap
+ //
+ if ((hNewBitmap = ::GpiCreateBitmap( hPS
+ ,&vHeader
+ ,CBM_INIT
+ ,(PBYTE)pucBits
+ ,&vInfo
+ )) == GPI_ERROR)
+ {
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
- if ((hBitmapOld = ::GpiSetBitmap((HPS)GetHPS(), vNewBitmap.GetHBITMAP())) == HBM_ERROR)
- {
- ERRORID vError;
- wxString sError;
+ //
+ // Now blit it to the screen PS
+ //
+ if ((lHits = ::GpiWCBitBlt( (HPS)GetHPS()
+ ,hNewBitmap
+ ,4
+ ,vPoint
+ ,ROP_SRCCOPY
+ ,BBO_IGNORE
+ )) == GPI_ERROR)
+ {
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
- ::GpiWCBitBlt( (HPS)GetHPS()
- ,hBitmap
- ,4
- ,vPoint
- ,ROP_SRCAND
- ,BBO_IGNORE
- );
+
+ //
+ // Clean up
+ //
+ free(pucBits);
+ free(pucBitsMask);
+ ::GpiSetBitmap(hPS, NULLHANDLE);
+ ::GpiDestroyPS(hPS);
+ ::DevCloseDC(hDC);
}
}
else
{
+ LONG lOldTextground = ::GpiQueryColor((HPS)GetHPS());
+ LONG lOldBackground = ::GpiQueryBackColor((HPS)GetHPS());
+
+ if (m_textForegroundColour.Ok())
+ {
+ ::GpiSetColor( (HPS)GetHPS()
+ ,m_textForegroundColour.GetPixel()
+ );
+ }
+ if (m_textBackgroundColour.Ok())
+ {
+ ::GpiSetBackColor( (HPS)GetHPS()
+ ,m_textBackgroundColour.GetPixel()
+ );
+ }
::GpiWCBitBlt( (HPS)GetHPS()
,hBitmap
,4
,ROP_SRCCOPY
,BBO_IGNORE
);
+ ::GpiSetBitmap((HPS)GetHPS(), hBitmapOld);
+ ::GpiSetColor((HPS)GetHPS(), lOldTextground);
+ ::GpiSetBackColor((HPS)GetHPS(), lOldBackground);
}
- ::GpiSetBitmap((HPS)GetHPS(), hBitmapOld);
- ::GpiSetColor((HPS)GetHPS(), lOldTextground);
- ::GpiSetBackColor((HPS)GetHPS(), lOldBackground);
}
} // end of wxDC::DoDrawBitmap
projects / wxWidgets.git / blobdiff