//#include "wx/msw/dib.h"
#include "wx/image.h"
+#include "wx/xpmdecod.h"
// ----------------------------------------------------------------------------
// macros
if (m_hBitmap)
{
- if ( !::GpiDeleteBitmap((HBITMAP)m_hBitmap) )
+ if (!::GpiDeleteBitmap((HBITMAP)m_hBitmap))
{
wxLogLastError("GpiDeleteBitmap(hbitmap)");
}
// this function should be called from all wxBitmap ctors
void wxBitmap::Init()
{
- // m_refData = NULL; done in the base class ctor
-
- if (wxTheBitmapList)
- wxTheBitmapList->AddBitmap(this);
-}
+} // end of wxBitmap::Init
bool wxBitmap::CopyFromIconOrCursor(
const wxGDIImage& rIcon
)
{
+ HPOINTER hIcon = (HPOINTER)rIcon.GetHandle();
+ POINTERINFO SIconInfo;
+
+ if (!::WinQueryPointerInfo(hIcon, &SIconInfo))
+ {
+ wxLogLastError(wxT("WinQueryPointerInfo"));
+ return FALSE;
+ }
wxBitmapRefData* pRefData = new wxBitmapRefData;
m_refData = pRefData;
- pRefData->m_nWidth = rIcon.GetWidth();
- pRefData->m_nHeight = rIcon.GetHeight();
- pRefData->m_nDepth = wxDisplayDepth();
+ int nWidth = rIcon.GetWidth();
+ int nHeight = rIcon.GetHeight();
- pRefData->m_hBitmap = (WXHBITMAP)rIcon.GetHandle();
- // no mask???
- pRefData->m_pBitmapMask = new wxMask();
+ pRefData->m_nWidth = nWidth;
+ pRefData->m_nHeight = nHeight;
+ pRefData->m_nDepth = wxDisplayDepth();
-#if WXWIN_COMPATIBILITY_2
- pRefData->m_bOk = TRUE;
-#endif // WXWIN_COMPATIBILITY_2
+ pRefData->m_hBitmap = (WXHBITMAP)SIconInfo.hbmColor;
+
+ //
+ // No mask in the Info struct in OS/2
+ //
return(TRUE);
-}
+} // end of wxBitmap::CopyFromIconOrCursor
bool wxBitmap::CopyFromCursor(
const wxCursor& rCursor
if (!rCursor.Ok())
return(FALSE);
return(CopyFromIconOrCursor(rCursor));
-}
+} // end of wxBitmap::CopyFromCursor
bool wxBitmap::CopyFromIcon(
const wxIcon& rIcon
return(FALSE);
return CopyFromIconOrCursor(rIcon);
-}
+} // end of wxBitmap::CopyFromIcon
wxBitmap::~wxBitmap()
{
- if (wxTheBitmapList)
- wxTheBitmapList->DeleteObject(this);
-}
+} // end of wxBitmap::~wxBitmap
wxBitmap::wxBitmap(
const char zBits[]
-, int nTheWidth
-, int nTheHeight
-, int nNoBits
+, int nWidth
+, int nHeight
+, int nDepth
)
{
Init();
HPS hPs;
DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL };
SIZEL vSize = {0, 0};
+ char* pzData;
wxASSERT(vHabmain != NULL);
- hDc = ::DevOpenDC(vHabmain, OD_MEMORY, (PSZ)"*", 1L, (PDEVOPENDATA)&vDop, 0L);
+ m_refData = pRefData;
- vHeader.cbFix = sizeof(vHeader);
- vHeader.cx = (USHORT)nTheWidth;
- vHeader.cy = (USHORT)nTheHeight;
- vHeader.cPlanes = 1L;
- vHeader.cBitCount = nNoBits;
- vHeader.ulCompression = BCA_UNCOMP;
- vHeader.cxResolution = 0;
- vHeader.cyResolution = 0;
- vHeader.cclrUsed = 0;
- vHeader.cclrImportant = 0;
- vHeader.usUnits = BRU_METRIC;
- vHeader.usRecording = BRA_BOTTOMUP;
- vHeader.usRendering = BRH_NOTHALFTONED;
- vHeader.cSize1 = 0;
- vHeader.cSize2 = 0;
- vHeader.ulColorEncoding = 0;
- vHeader.ulIdentifier = 0;
+ pRefData->m_nWidth = nWidth;
+ pRefData->m_nHeight = nHeight;
+ pRefData->m_nDepth = nDepth;
+ pRefData->m_nNumColors = 0;
+ pRefData->m_pSelectedInto = NULL;
+ hDc = ::DevOpenDC(vHabmain, OD_MEMORY, (PSZ)"*", 1L, (PDEVOPENDATA)&vDop, 0L);
hPs = ::GpiCreatePS(vHabmain, hDc, &vSize, GPIA_ASSOC | PU_PELS);
if (hPs == 0)
{
wxLogLastError("GpiCreatePS Failure");
}
- m_refData = pRefData;
+ if (nDepth == 1)
+ {
+ //
+ // 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!
+ //
+ const size_t nBytesPerLine = (nWidth + 7) / 8;
+ const size_t nPadding = nBytesPerLine % 2;
+ const size_t nLen = nHeight * (nPadding + nBytesPerLine);
+ const char* pzSrc = zBits;
+ int nRows;
+ size_t nCols;
+
+ pzData = (char *)malloc(nLen);
+
+ char* pzDst = pzData;
+
+ for (nRows = 0; nRows < nHeight; nRows++)
+ {
+ for (nCols = 0; nCols < nBytesPerLine; nCols++)
+ {
+ unsigned char ucVal = *pzSrc++;
+ unsigned char ucReversed = 0;
+ int nBits;
+
+ for (nBits = 0; nBits < 8; nBits++)
+ {
+ ucReversed <<= 1;
+ ucReversed |= (ucVal & 0x01);
+ ucVal >>= 1;
+ }
+ *pzDst++ = ucReversed;
+ }
+ if (nPadding)
+ *pzDst++ = 0;
+ }
+ }
+ else
+ {
+ //
+ // Bits should already be in Windows standard format
+ //
+ pzData = (char *)zBits; // const_cast is harmless
+ }
- pRefData->m_nWidth = nTheWidth;
- pRefData->m_nHeight = nTheHeight;
- pRefData->m_nDepth = nNoBits;
- pRefData->m_nNumColors = 0;
- pRefData->m_pSelectedInto = NULL;
+ memset(&vHeader, '\0', sizeof(BITMAPINFOHEADER2));
+ vHeader.cbFix = sizeof(vHeader);
+ vHeader.cx = (USHORT)nWidth;
+ vHeader.cy = (USHORT)nHeight;
+ vHeader.cPlanes = 1L;
+ vHeader.cBitCount = nDepth;
+ vHeader.usReserved = 0;
+ vHeader.ulCompression = BCA_UNCOMP;
+ vHeader.usRecording = BRA_BOTTOMUP;
+ vHeader.usRendering = BRH_NOTHALFTONED;
+ vHeader.ulColorEncoding = BCE_RGB;
+ vHeader.ulIdentifier = 0;
+
+ memset(&vInfo, '\0', sizeof(BITMAPINFO2));
+ vInfo.cbFix = sizeof(vInfo);
+ vInfo.cx = (USHORT)nWidth;
+ vInfo.cy = (USHORT)nHeight;
+ vInfo.cPlanes = 1L;
+ vInfo.cBitCount = nDepth;
+ vInfo.usReserved = 0;
+ vInfo.ulCompression = BCA_UNCOMP;
+ vInfo.usRecording = BRA_BOTTOMUP;
+ vInfo.usRendering = BRH_NOTHALFTONED;
+ vInfo.ulColorEncoding = BCE_RGB;
+ vInfo.ulIdentifier = 0;
+
+ HBITMAP hBmp = ::GpiCreateBitmap(hPs, &vHeader, CBM_INIT, (PBYTE)pzData, &vInfo);
- HBITMAP hBmp = ::GpiCreateBitmap(hPs, &vHeader, 0L, NULL, &vInfo);
if (!hBmp)
{
wxLogLastError("CreateBitmap");
}
+ ::WinReleasePS(hPs);
SetHBITMAP((WXHBITMAP)hBmp);
-}
-
-// Create from XPM data
-wxBitmap::wxBitmap(
- char** ppData
-, wxControl* WXUNUSED(pAnItem))
-{
- Init();
-
- (void)Create( (void *)ppData
- ,wxBITMAP_TYPE_XPM_DATA
- ,0
- ,0
- ,0
- );
-}
+} // end of wxBitmap::wxBitmap
wxBitmap::wxBitmap(
int nW
,nH
,nD
);
-}
+} // end of wxBitmap::wxBitmap
wxBitmap::wxBitmap(
void* pData
,nHeight
,nDepth
);
-}
+} // end of wxBitmap::wxBitmap
wxBitmap::wxBitmap(
const wxString& rFilename
LoadFile( rFilename
,(int)lType
);
-}
+} // end of wxBitmap::wxBitmap
bool wxBitmap::Create(
int nW
{
HBITMAP hBmp;
BITMAPINFOHEADER2 vHeader;
- BITMAPINFO2 vInfo;
- HPS hpsScreen;
- HDC hdcScreen;
- DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL };
- SIZEL vSize = {0, 0};
- LONG lBitCount;
wxASSERT(vHabmain != NULL);
-
- hpsScreen = ::WinGetScreenPS(HWND_DESKTOP);
- hdcScreen = ::GpiQueryDevice(hpsScreen);
- ::DevQueryCaps(hdcScreen, CAPS_COLOR_BITCOUNT, 1L, &lBitCount);
-
- vHeader.cbFix = sizeof(vHeader);
- vHeader.cx = (USHORT)nW;
- vHeader.cy = (USHORT)nH;
- vHeader.cPlanes = (USHORT)nD;
- vHeader.cBitCount = lBitCount;
- vHeader.ulCompression = BCA_UNCOMP;
- vHeader.cxResolution = 0;
- vHeader.cyResolution = 0;
- vHeader.cclrUsed = 0;
- vHeader.cclrImportant = 0;
- vHeader.usUnits = BRU_METRIC;
- vHeader.usRecording = BRA_BOTTOMUP;
- vHeader.usRendering = BRH_NOTHALFTONED;
- vHeader.cSize1 = 0;
- vHeader.cSize2 = 0;
- vHeader.ulColorEncoding = 0;
- vHeader.ulIdentifier = 0;
-
UnRef();
m_refData = new wxBitmapRefData;
-
GetBitmapData()->m_nWidth = nW;
GetBitmapData()->m_nHeight = nH;
GetBitmapData()->m_nDepth = nD;
if (nD > 0)
{
- hBmp = ::GpiCreateBitmap(hpsScreen, &vHeader, 0L, NULL, &vInfo);
- if (!hBmp)
- {
- wxLogLastError("CreateBitmap");
- }
+ 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);
+
+ memset(&vHeader, '\0', sizeof(BITMAPINFOHEADER2));
+ vHeader.cbFix = sizeof(BITMAPINFOHEADER2);
+ vHeader.cx = nW;
+ vHeader.cy = nH;
+ vHeader.cPlanes = 1;
+ vHeader.cBitCount = nD;
+
+ hBmp = ::GpiCreateBitmap( hPS
+ ,&vHeader
+ ,0L
+ ,NULL
+ ,NULL
+ );
+ ::GpiDestroyPS(hPS);
+ ::DevCloseDC(hDC);
}
else
{
- LONG lPlanes;
+ HPS hPSScreen;
+ HDC hDCScreen;
+ LONG lBitCount;
+
+ hPSScreen = ::WinGetScreenPS(HWND_DESKTOP);
+ hDCScreen = ::GpiQueryDevice(hPSScreen);
+ ::DevQueryCaps(hDCScreen, CAPS_COLOR_BITCOUNT, 1L, &lBitCount);
+
+ memset(&vHeader, '\0', sizeof(BITMAPINFOHEADER2));
+ vHeader.cbFix = sizeof(BITMAPINFOHEADER2);
+ vHeader.cx = nW;
+ vHeader.cy = nH;
+ vHeader.cPlanes = 1;
+ vHeader.cBitCount = lBitCount;
+
+ hBmp = ::GpiCreateBitmap( hPSScreen
+ ,&vHeader
+ ,0L
+ ,NULL
+ ,NULL
+ );
- ::DevQueryCaps(hdcScreen, CAPS_COLOR_PLANES, 1L, &lPlanes);
- hBmp = ::GpiCreateBitmap(hpsScreen, &vHeader, 0L, NULL, &vInfo);
- if (!hBmp)
- {
- wxLogLastError("CreateBitmap");
- }
GetBitmapData()->m_nDepth = wxDisplayDepth();
+ ::WinReleasePS(hPSScreen);
}
SetHBITMAP((WXHBITMAP)hBmp);
#endif // WXWIN_COMPATIBILITY_2
return Ok();
-}
+} // end of wxBitmap::Create
+
+bool wxBitmap::CreateFromXpm(
+ const char** ppData
+)
+{
+#if wxUSE_IMAGE && wxUSE_XPM
+ Init();
+
+ wxCHECK_MSG(ppData != NULL, FALSE, wxT("invalid bitmap data"))
+
+ wxXPMDecoder vDecoder;
+ wxImage vImg = vDecoder.ReadData(ppData);
+
+ wxCHECK_MSG(vImg.Ok(), FALSE, wxT("invalid bitmap data"))
+
+ *this = wxBitmap(vImg);
+ return TRUE;
+#else
+ return FALSE;
+#endif
+} // end of wxBitmap::CreateFromXpm
bool wxBitmap::LoadFile(
const wxString& rFilename
if (!vImage.LoadFile(rFilename, lType) || !vImage.Ok() )
return(FALSE);
- *this = vImage.ConvertToBitmap();
+ *this = wxBitmap(vImage);
return(TRUE);
}
-}
+} // end of wxBitmap::LoadFile
bool wxBitmap::Create(
void* pData
,nHeight
,nDepth
));
-}
+} // end of wxBitmap::Create
bool wxBitmap::SaveFile(
const wxString& rFilename
else
{
// FIXME what about palette? shouldn't we use it?
- wxImage vImage(*this);
+ wxImage vImage = ConvertToImage();
if (!vImage.Ok())
return(FALSE);
,lType
));
}
-}
+} // end of wxBitmap::SaveFile
+
+
+// ----------------------------------------------------------------------------
+// wxImage-wxBitmap convertion
+// ----------------------------------------------------------------------------
+
+bool wxBitmap::CreateFromImage (
+ const wxImage& rImage
+, int nDepth
+)
+{
+ wxCHECK_MSG(rImage.Ok(), FALSE, wxT("invalid image"));
+ m_refData = new wxBitmapRefData();
+
+ int nSizeLimit = 1024 * 768 * 3;
+ int nWidth = rImage.GetWidth();
+ int nBmpHeight = rImage.GetHeight();
+ int nBytePerLine = nWidth * 3;
+ int nSizeDWORD = sizeof(DWORD);
+ int nLineBoundary = nBytePerLine % nSizeDWORD;
+ int nPadding = 0;
+
+ if (nLineBoundary > 0)
+ {
+ nPadding = nSizeDWORD - nLineBoundary;
+ nBytePerLine += nPadding;
+ }
+
+ //
+ // Calc the number of DIBs and heights of DIBs
+ //
+ int nNumDIB = 1;
+ int nHRemain = 0;
+ int nHeight = nSizeLimit / nBytePerLine;
+
+ if (nHeight >= nBmpHeight)
+ nHeight = nBmpHeight;
+ else
+ {
+ nNumDIB = nBmpHeight / nHeight;
+ nHRemain = nBmpHeight % nHeight;
+ if (nHRemain > 0)
+ nNumDIB++;
+ }
+
+ //
+ // Set bitmap parameters
+ //
+ wxCHECK_MSG(rImage.Ok(), FALSE, wxT("invalid image"));
+ SetWidth(nWidth);
+ SetHeight(nBmpHeight);
+ if (nDepth == -1)
+ nDepth = wxDisplayDepth();
+ SetDepth(nDepth);
+
+#if wxUSE_PALETTE
+ //
+ // Copy the palette from the source image
+ //
+ SetPalette(rImage.GetPalette());
+#endif // wxUSE_PALETTE
+
+ //
+ // Create a DIB header
+ //
+ BITMAPINFOHEADER2 vHeader;
+
+ //
+ // Fill in the DIB header
+ //
+ memset(&vHeader, '\0', sizeof(BITMAPINFOHEADER2));
+ vHeader.cbFix = sizeof(vHeader);
+ vHeader.cx = (USHORT)nWidth;
+ vHeader.cy = (USHORT)nHeight;
+ vHeader.cPlanes = 1L;
+ vHeader.cBitCount = 24;
+ vHeader.ulCompression = BCA_UNCOMP;
+ vHeader.cbImage = nBytePerLine * nHeight;
+ vHeader.cclrUsed = 0;
+
+ //
+ // These seem not really needed for our purpose here.
+ //
+ vHeader.cxResolution = 0;
+ vHeader.cyResolution = 0;
+ vHeader.cclrImportant = 0;
+ vHeader.usUnits = BRU_METRIC;
+ vHeader.usReserved = 0;
+ vHeader.cSize1 = 0;
+ vHeader.cSize2 = 0;
+ vHeader.usRecording = BRA_BOTTOMUP;
+ vHeader.usRendering = BRH_NOTHALFTONED;
+ vHeader.ulColorEncoding = BCE_RGB;
+ vHeader.ulIdentifier = 0;
+
+ //
+ // Memory for DIB data
+ //
+ unsigned char* pucBits;
+
+ pucBits = (unsigned char *)malloc(vHeader.cbImage);
+ if(!pucBits)
+ {
+ wxFAIL_MSG(wxT("could not allocate memory for DIB"));
+ return FALSE;
+ }
+
+ //
+ // Create and set the device-dependent bitmap
+ //
+ 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);
+ HBITMAP hBmp;
+ HBITMAP hBmpOld;
+
+ hBmp = ::GpiCreateBitmap( hPS
+ ,&vHeader
+ ,0L
+ ,NULL
+ ,NULL
+ );
+ hBmpOld = ::GpiSetBitmap(hPS, hBmp);
+#if wxUSE_PALETTE
+ HPAL hOldPalette = NULLHANDLE;
+ if (rImage.GetPalette().Ok())
+ {
+ hOldPalette = ::GpiSelectPalette(hPS, (HPAL)rImage.GetPalette().GetHPALETTE());
+ }
+#endif // wxUSE_PALETTE
+
+ //
+ // Copy image data into DIB data and then into DDB (in a loop)
+ //
+ unsigned char* pData = rImage.GetData();
+ int i;
+ int j;
+ int n;
+ int nOrigin = 0;
+ unsigned char* ptdata = pData;
+ unsigned char* ptbits;
+
+ for (n = 0; n < nNumDIB; n++)
+ {
+ if (nNumDIB > 1 && n == nNumDIB - 1 && nHRemain > 0)
+ {
+ //
+ // Redefine height and size of the (possibly) last smaller DIB
+ // memory is not reallocated
+ //
+ nHeight = nHRemain;
+ vHeader.cy = (DWORD)(nHeight);
+ vHeader.cbImage = nBytePerLine * nHeight;
+ }
+ ptbits = pucBits;
+ for (j = 0; j < nHeight; j++)
+ {
+ for (i = 0; i < nWidth; i++)
+ {
+ *(ptbits++) = *(ptdata + 2);
+ *(ptbits++) = *(ptdata + 1);
+ *(ptbits++) = *(ptdata);
+ ptdata += 3;
+ }
+ for (i = 0; i < nPadding; i++)
+ *(ptbits++) = 0;
+ }
+
+ //
+ // Have to do something similar to WIN32's StretchDIBits, use GpiBitBlt
+ //
+ POINTL vPoint[4] = { 0, nOrigin,
+ nWidth, nHeight,
+ 0, 0, nWidth, nHeight
+ };
+
+ ::GpiBitBlt( hPS
+ ,hPS
+ ,4
+ ,vPoint
+ ,ROP_SRCCOPY
+ ,BBO_IGNORE
+ );
+ nOrigin += nHeight;
+ }
+ SetHBITMAP((WXHBITMAP)hBmp);
+#if wxUSE_PALETTE
+ if (hOldPalette)
+ ::GpiSelectPalette(hPS, hOldPalette);
+#endif // wxUSE_PALETTE
+
+ //
+ // Similarly, created an mono-bitmap for the possible mask
+ //
+ if (rImage.HasMask())
+ {
+ memset(&vHeader, '\0', sizeof(BITMAPINFOHEADER2));
+ vHeader.cbFix = sizeof(BITMAPINFOHEADER2);
+ vHeader.cx = nWidth;
+ vHeader.cy = nHeight;
+ vHeader.cPlanes = 1;
+ vHeader.cBitCount = 1;
+ hBmp = ::GpiCreateBitmap( hPS
+ ,&vHeader
+ ,0L
+ ,NULL
+ ,NULL
+ );
+ hBmpOld = ::GpiSetBitmap(hPS, hBmp);
+ if (nNumDIB == 1)
+ nHeight = nBmpHeight;
+ else
+ nHeight = nSizeLimit / nBytePerLine;
+ vHeader.cy = (DWORD)(nHeight);
+ vHeader.cbImage = nBytePerLine * nHeight;
+ nOrigin = 0;
+
+ unsigned char cRed = rImage.GetMaskRed();
+ unsigned char cGreen = rImage.GetMaskGreen();
+ unsigned char cBlue = rImage.GetMaskBlue();
+ unsigned char cZero = 0;
+ unsigned char cOne = 255;
+
+ ptdata = pData;
+ for (n = 0; n < nNumDIB; n++)
+ {
+ if (nNumDIB > 1 && n == nNumDIB - 1 && nHRemain > 0)
+ {
+ //
+ // Redefine height and size of the (possibly) last smaller DIB
+ // memory is not reallocated
+ //
+ nHeight = nHRemain;
+ vHeader.cy = (DWORD)(nHeight);
+ vHeader.cbImage = nBytePerLine * nHeight;
+ }
+ ptbits = pucBits;
+ for (int j = 0; j < nHeight; j++)
+ {
+ for (i = 0; i < nWidth; i++)
+ {
+ if ((*(ptdata++) != cRed) || (*(ptdata++) != cGreen) || (*(ptdata++) != cBlue))
+ {
+ *(ptbits++) = cOne;
+ *(ptbits++) = cOne;
+ *(ptbits++) = cOne;
+ }
+ else
+ {
+ *(ptbits++) = cZero;
+ *(ptbits++) = cZero;
+ *(ptbits++) = cZero;
+ }
+ }
+ for (i = 0; i < nPadding; i++)
+ *(ptbits++) = cZero;
+ }
+ POINTL vPoint[4] = { 0, nOrigin,
+ nWidth, nHeight,
+ 0, 0, nWidth, nHeight
+ };
+
+ ::GpiBitBlt( hPS
+ ,hPS
+ ,4
+ ,vPoint
+ ,ROP_SRCCOPY
+ ,BBO_IGNORE
+ );
+ nOrigin += nHeight;
+ }
+
+ //
+ // Create a wxMask object
+ //
+ wxMask* pMask = new wxMask();
+
+ pMask->SetMaskBitmap((WXHBITMAP)hBmp);
+ SetMask(pMask);
+ hBmpOld = ::GpiSetBitmap(hPS, hBmp);
+ }
+
+ //
+ // Free allocated resources
+ //
+ ::GpiSetBitmap(hPS, NULLHANDLE);
+ ::GpiDestroyPS(hPS);
+ ::DevCloseDC(hDC);
+ free(pucBits);
+ return TRUE;
+} // end of wxBitmap::CreateFromImage
+
+wxImage wxBitmap::ConvertToImage() const
+{
+ wxImage vImage;
+
+ wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
+
+ //
+ // Create an wxImage object
+ //
+ int nWidth = GetWidth();
+ int nHeight = GetHeight();
+ int nDevWidth;
+ int nDevHeight;
+ int nBytePerLine = nWidth * 3;
+ int nSizeDWORD = sizeof(DWORD);
+ int nLineBoundary = nBytePerLine % nSizeDWORD;
+ int nPadding = 0;
+ unsigned char* pData;
+ unsigned char* lpBits;
+ long lScans;
+ BITMAPINFOHEADER2 vDIBh;
+ BITMAPINFO2 vDIBInfo;
+ HDC hDCMem;
+ PSZ pszData[4] = { "Display", NULL, NULL, NULL };
+ HPS hPSMem;
+ HPS hPS;
+ SIZEL vSizlPage = {0,0};
+ HBITMAP hBitmap;
+
+ vImage.Create( nWidth
+ ,nHeight
+ );
+ pData = vImage.GetData();
+ if(!pData)
+ {
+ wxFAIL_MSG( wxT("could not allocate data for image") );
+ return wxNullImage;
+ }
+ if(nLineBoundary > 0)
+ {
+ nPadding = nSizeDWORD - nLineBoundary;
+ nBytePerLine += nPadding;
+ }
+ wxDisplaySize( &nDevWidth
+ ,&nDevHeight
+ );
+ //
+ // Create and fill a DIB header
+ //
+ memset(&vDIBh, '\0', sizeof(BITMAPINFOHEADER2));
+ vDIBh.cbFix = sizeof(BITMAPINFOHEADER2);
+ vDIBh.cx = nWidth;
+ vDIBh.cy = nHeight;
+ vDIBh.cPlanes = 1;
+ vDIBh.cbImage = nBytePerLine * nHeight;
+ vDIBh.cBitCount = 24;
+
+ memset(&vDIBInfo, '\0', sizeof(BITMAPINFO2));
+ vDIBInfo.cbFix = sizeof(BITMAPINFO2);
+ vDIBInfo.cPlanes = 1;
+ vDIBInfo.cBitCount = 24;
+ vDIBInfo.ulCompression = BCA_UNCOMP;
+ vDIBInfo.usReserved = 0;
+ vDIBInfo.usRecording = BRA_BOTTOMUP;
+ vDIBInfo.usRendering = BRH_NOTHALFTONED;
+ vDIBInfo.ulColorEncoding = BCE_RGB;
+ vDIBInfo.ulIdentifier = 0;
+
+ lpBits = (unsigned char *)malloc(vDIBh.cbImage);
+ if (!lpBits)
+ {
+ wxFAIL_MSG(wxT("could not allocate data for DIB"));
+ free(pData);
+ return wxNullImage;
+ }
+
+ //
+ // Copy data from the device-dependent bitmap to the DIB
+ //
+ hDCMem = ::DevOpenDC( vHabmain
+ ,OD_MEMORY
+ ,"*"
+ ,4
+ ,(PDEVOPENDATA)pszData
+ ,NULLHANDLE
+ );
+ hPSMem = ::GpiCreatePS( vHabmain
+ ,hDCMem
+ ,&vSizlPage
+ ,PU_PELS | GPIA_ASSOC | GPIT_MICRO
+ );
+ hBitmap = ::GpiCreateBitmap( hPSMem
+ ,&vDIBh
+ ,0L
+ ,NULL
+ ,NULL
+ );
+ lScans = ::GpiQueryBitmapBits( hPSMem
+ ,0L
+ ,(LONG)nHeight
+ ,(PBYTE)lpBits
+ ,&vDIBInfo
+ );
+
+ //
+ // Copy DIB data into the wxImage object
+ //
+ int i;
+ int j;
+ unsigned char* ptdata = pData;
+ unsigned char* ptbits = lpBits;
+
+ for (i = 0; i < nHeight; i++)
+ {
+ for (j = 0; j < nWidth; j++)
+ {
+ *(ptdata++) = *(ptbits+2);
+ *(ptdata++) = *(ptbits+1);
+ *(ptdata++) = *(ptbits );
+ ptbits += 3;
+ }
+ ptbits += nPadding;
+ }
+
+ //
+ // Similarly, set data according to the possible mask bitmap
+ //
+ if (GetMask() && GetMask()->GetMaskBitmap())
+ {
+ hBitmap = (HBITMAP)GetMask()->GetMaskBitmap();
+
+ //
+ // Memory DC/PS created, color set, data copied, and memory DC/PS deleted
+ //
+ HDC hMemDC = ::DevOpenDC( vHabmain
+ ,OD_MEMORY
+ ,"*"
+ ,4
+ ,(PDEVOPENDATA)pszData
+ ,NULLHANDLE
+ );
+ HPS hMemPS = ::GpiCreatePS( vHabmain
+ ,hMemDC
+ ,&vSizlPage
+ ,PU_PELS | GPIA_ASSOC | GPIT_MICRO
+ );
+ ::GpiSetColor(hMemPS, OS2RGB(0, 0, 0));
+ ::GpiSetBackColor(hMemPS, OS2RGB(255, 255, 255) );
+ ::GpiQueryBitmapBits( hPSMem
+ ,0L
+ ,(LONG)nHeight
+ ,(PBYTE)lpBits
+ ,&vDIBInfo
+ );
+ ::GpiDestroyPS(hMemPS);
+ ::DevCloseDC(hMemDC);
+
+ //
+ // Background color set to RGB(16,16,16) in consistent with wxGTK
+ //
+ unsigned char ucRed = 16;
+ unsigned char ucGreen = 16;
+ unsigned char ucBlue = 16;
+
+ ptdata = pData;
+ ptbits = lpBits;
+ for (i = 0; i < nHeight; i++)
+ {
+ for (j = 0; j < nWidth; j++)
+ {
+ if (*ptbits != 0)
+ ptdata += 3;
+ else
+ {
+ *(ptdata++) = ucRed;
+ *(ptdata++) = ucGreen;
+ *(ptdata++) = ucBlue;
+ }
+ ptbits += 3;
+ }
+ ptbits += nPadding;
+ }
+ vImage.SetMaskColour( ucRed
+ ,ucGreen
+ ,ucBlue
+ );
+ vImage.SetMask(TRUE);
+ }
+ else
+ {
+ vImage.SetMask(FALSE);
+ }
+
+ //
+ // Free allocated resources
+ //
+ ::GpiDestroyPS(hPSMem);
+ ::DevCloseDC(hDCMem);
+ free(lpBits);
+ return vImage;
+} // end of wxBitmap::ConvertToImage
+
+// ----------------------------------------------------------------------------
+// sub bitmap extraction
+// ----------------------------------------------------------------------------
+
+wxBitmap wxBitmap::GetSubBitmap(
+ const wxRect& rRect
+) const
+{
+ wxCHECK_MSG( Ok() &&
+ (rRect.x >= 0) && (rRect.y >= 0) &&
+ (rRect.x + rRect.width <= GetWidth()) &&
+ (rRect.y + rRect.height <= GetHeight()),
+ wxNullBitmap, wxT("Invalid bitmap or bitmap region") );
+
+ wxBitmap vRet( rRect.width
+ ,rRect.height
+ ,GetDepth()
+ );
+ wxASSERT_MSG( vRet.Ok(), wxT("GetSubBitmap error") );
+
+
+ //
+ // Copy bitmap data
+ //
+ SIZEL vSize = {0, 0};
+ DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
+ HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+ HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+ HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC);
+ HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC);
+ POINTL vPoint[4] = { rRect.x, rRect.y,
+ rRect.x + rRect.width, rRect.y + rRect.height,
+ 0, 0, GetWidth(), GetHeight()
+ };
+
+ ::GpiSetBitmap(hPSSrc, (HBITMAP) GetHBITMAP());
+ ::GpiSetBitmap(hPSDst, (HBITMAP) vRet.GetHBITMAP());
+ ::GpiBitBlt( hPSDst
+ ,hPSSrc
+ ,4L
+ ,vPoint
+ ,ROP_SRCCOPY
+ ,BBO_IGNORE
+ );
+
+ //
+ // Copy mask if there is one
+ //
+ if (GetMask())
+ {
+ BITMAPINFOHEADER2 vBmih;
+
+ memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2));
+ vBmih.cbFix = sizeof(BITMAPINFOHEADER2);
+ vBmih.cx = rRect.width;
+ vBmih.cy = rRect.height;
+ vBmih.cPlanes = 1;
+ vBmih.cBitCount = 1;
+
+ HBITMAP hBmpMask = ::GpiCreateBitmap( hPSDst
+ ,&vBmih
+ ,0L
+ ,NULL
+ ,NULL
+ );
+
+ ::GpiSetBitmap(hPSSrc, (HBITMAP) GetHBITMAP());
+ ::GpiSetBitmap(hPSDst, (HBITMAP) vRet.GetHBITMAP());
+
+ ::GpiSetBitmap(hPSSrc, (HBITMAP) GetMask()->GetMaskBitmap());
+ ::GpiSetBitmap(hPSDst, (HBITMAP) hBmpMask);
+ ::GpiBitBlt( hPSDst
+ ,hPSSrc
+ ,4L
+ ,vPoint
+ ,ROP_SRCCOPY
+ ,BBO_IGNORE
+ );
+
+ wxMask* pMask = new wxMask((WXHBITMAP)hBmpMask);
+ vRet.SetMask(pMask);
+ }
+
+ ::GpiSetBitmap(hPSSrc, NULL);
+ ::GpiSetBitmap(hPSDst, NULL);
+ ::GpiDestroyPS(hPSSrc);
+ ::GpiDestroyPS(hPSDst);
+ ::DevCloseDC(hDCSrc);
+ ::DevCloseDC(hDCDst);
+ return vRet;
+} // end of wxBitmap::GetSubBitmap
// ----------------------------------------------------------------------------
// wxBitmap accessors
EnsureHasData();
GetBitmapData()->m_nQuality = nQ;
-}
+} // end of wxBitmap::SetQuality
#if WXWIN_COMPATIBILITY_2
void wxBitmap::SetOk(
EnsureHasData();
GetBitmapData()->m_bOk = bOk;
-}
+} // end of wxBitmap::SetOk
#endif // WXWIN_COMPATIBILITY_2
void wxBitmap::SetPalette(
EnsureHasData();
GetBitmapData()->m_vBitmapPalette = rPalette;
-}
+} // end of wxBitmap::SetPalette
void wxBitmap::SetMask(
wxMask* pMask
EnsureHasData();
GetBitmapData()->m_pBitmapMask = pMask;
-}
+} // end of wxBitmap::SetMask
-// Will try something for OS/2 but not really sure how close
-// to the msw intent this is.
wxBitmap wxBitmap::GetBitmapForDC(
wxDC& rDc
) const
{
- wxMemoryDC vMemDC;
- wxBitmap vTmpBitmap( this->GetWidth()
- ,this->GetHeight()
- ,rDc.GetDepth()
- );
- WXHBITMAP vOldBitmap;
- HPS hMemoryPS;
- HPS hPs;
- POINTL vPoint[4];
- SIZEL vSize = {0,0};
-
- hMemoryPS = ::GpiCreatePS(vHabmain, (HDC)vMemDC.GetHDC(), &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
- hPs = ::GpiCreatePS(vHabmain, (HDC)rDc.GetHDC(), &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
-
- // TODO: Set the points
-
- vOldBitmap = (WXHBITMAP)::GpiSetBitmap(hPs, (HBITMAP)vTmpBitmap.GetHBITMAP());
- ::GpiBitBlt(hPs, hMemoryPS, 4L, vPoint, ROP_SRCCOPY, BBO_IGNORE);
-
- return(vTmpBitmap);
-}
+ return(*this);
+} // end of wxBitmap::GetBitmapForDC
// ----------------------------------------------------------------------------
// wxMask
wxMask::wxMask()
{
m_hMaskBitmap = 0;
-}
+} // end of wxMask::wxMask
// Construct a mask from a bitmap and a colour indicating
// the transparent area
Create( rBitmap
,rColour
);
-}
+} // end of wxMask::wxMask
// Construct a mask from a bitmap and a palette index indicating
// the transparent area
Create( rBitmap
,nPaletteIndex
);
-}
+} // end of wxMask::wxMask
// Construct a mask from a mono bitmap (copies the bitmap).
wxMask::wxMask(
{
m_hMaskBitmap = 0;
Create(rBitmap);
-}
+} // end of wxMask::wxMask
wxMask::~wxMask()
{
if (m_hMaskBitmap)
::GpiDeleteBitmap((HBITMAP)m_hMaskBitmap);
-}
+} // end of wxMask::~wxMask
// Create a mask from a mono bitmap (copies the bitmap).
bool wxMask::Create(
const wxBitmap& rBitmap
)
{
- BITMAPINFOHEADER2 vHeader;
- DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL };
+ BITMAPINFOHEADER2 vBmih;
SIZEL vSize = {0, 0};
- POINTL vPoint[4];
+ DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
+ HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+ HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+ HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC);
+ HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC);
+ POINTL vPoint[4] = { 0 ,0, rBitmap.GetWidth(), rBitmap.GetHeight(),
+ 0, 0, rBitmap.GetWidth(), rBitmap.GetHeight()
+ };
if (m_hMaskBitmap)
{
{
return(FALSE);
}
- vHeader.cbFix = sizeof(vHeader);
- vHeader.cx = (USHORT)rBitmap.GetWidth();
- vHeader.cy = (USHORT)rBitmap.GetHeight();
- vHeader.cPlanes = 1;
- vHeader.cBitCount = 1;
-
- m_hMaskBitmap = (WXHBITMAP) ::GpiCreateBitmap( m_hPs
- ,&vHeader
- ,0L
- ,NULL
- ,NULL
- );
-
- HPS srcPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
- ::GpiSetBitmap(srcPS, (HBITMAP)rBitmap.GetHBITMAP());
- HPS destPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
- ::GpiSetBitmap(srcPS, (HBITMAP)m_hMaskBitmap);
- // TODO: Set the point array
- ::GpiBitBlt(destPS, srcPS, 4L, vPoint, ROP_SRCCOPY , BBO_IGNORE);
-
- ::GpiDestroyPS(srcPS);
- ::GpiDestroyPS(destPS);
+
+ memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2));
+ vBmih.cbFix = sizeof(BITMAPINFOHEADER2);
+ vBmih.cx = rBitmap.GetWidth();
+ vBmih.cy = rBitmap.GetHeight();
+ vBmih.cPlanes = 1;
+ vBmih.cBitCount = 1;
+
+ m_hMaskBitmap = ::GpiCreateBitmap( hPSDst
+ ,&vBmih
+ ,0L
+ ,NULL
+ ,NULL
+ );
+
+ ::GpiSetBitmap(hPSSrc, (HBITMAP) rBitmap.GetHBITMAP());
+ ::GpiSetBitmap(hPSDst, (HBITMAP) m_hMaskBitmap);
+ ::GpiBitBlt( hPSDst
+ ,hPSSrc
+ ,4L
+ ,vPoint
+ ,ROP_SRCCOPY
+ ,BBO_IGNORE
+ );
+
+ ::GpiDestroyPS(hPSSrc);
+ ::GpiDestroyPS(hPSDst);
+ ::DevCloseDC(hDCSrc);
+ ::DevCloseDC(hDCDst);
return(TRUE);
-}
+} // end of wxMask::Create
// Create a mask from a bitmap and a palette index indicating
// the transparent area
}
}
return(FALSE);
-}
+} // end of wxMask::Create
// Create a mask from a bitmap and a colour indicating
// the transparent area
, const wxColour& rColour
)
{
- BITMAPINFOHEADER2 vHeader;
- DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL };
+ bool bOk = TRUE;
+ COLORREF vMaskColour = OS2RGB( rColour.Red()
+ ,rColour.Green()
+ ,rColour.Blue()
+ );
+ BITMAPINFOHEADER2 vBmih;
SIZEL vSize = {0, 0};
- POINTL vPoint[4];
+ DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL };
+ HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+ HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+ HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC);
+ HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC);
+ POINTL vPoint[4] = { 0 ,0, rBitmap.GetWidth(), rBitmap.GetHeight(),
+ 0, 0, rBitmap.GetWidth(), rBitmap.GetHeight()
+ };
if (m_hMaskBitmap)
{
return(FALSE);
}
- // scan the bitmap for the transparent colour and set
+ //
+ // Scan the bitmap for the transparent colour and set
// the corresponding pixels in the mask to BLACK and
// the rest to WHITE
- COLORREF vMaskColour = OS2RGB(rColour.Red(), rColour.Green(), rColour.Blue());
-
- vHeader.cbFix = sizeof(vHeader);
- vHeader.cx = (USHORT)rBitmap.GetWidth();
- vHeader.cy = (USHORT)rBitmap.GetHeight();
- vHeader.cPlanes = 1;
- vHeader.cBitCount = 1;
-
- m_hMaskBitmap = (WXHBITMAP) ::GpiCreateBitmap( m_hPs
- ,&vHeader
- ,0L
- ,NULL
- ,NULL
- );
-
- HPS srcPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
- ::GpiSetBitmap(srcPS, (HBITMAP)rBitmap.GetHBITMAP());
- HPS destPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
- ::GpiSetBitmap(srcPS, (HBITMAP)m_hMaskBitmap);
-
- // this is not very efficient, but I can't think
+ //
+
+ memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2));
+ vBmih.cbFix = sizeof(BITMAPINFOHEADER2);
+ vBmih.cx = rBitmap.GetWidth();
+ vBmih.cy = rBitmap.GetHeight();
+ vBmih.cPlanes = 1;
+ vBmih.cBitCount = 1;
+
+ m_hMaskBitmap = ::GpiCreateBitmap( hPSDst
+ ,&vBmih
+ ,0L
+ ,NULL
+ ,NULL
+ );
+
+ ::GpiSetBitmap(hPSSrc, (HBITMAP) rBitmap.GetHBITMAP());
+ ::GpiSetBitmap(hPSDst, (HBITMAP) m_hMaskBitmap);
+
+ //
+ // This is not very efficient, but I can't think
// of a better way of doing it
+ //
for (int w = 0; w < rBitmap.GetWidth(); w++)
{
for (int h = 0; h < rBitmap.GetHeight(); h++)
{
- POINTL vPoint;
-
- vPoint.x = w;
- vPoint.y = h;
-
- COLORREF col = ::GpiQueryPel(srcPS, &vPoint);
+ POINTL vPt = {w, h};
+ COLORREF vCol = (COLORREF)::GpiQueryPel(hPSSrc, &vPt);
+ if (vCol == (COLORREF)CLR_NOINDEX)
+ {
+ //
+ // Doesn't make sense to continue
+ //
+ bOk = FALSE;
+ break;
+ }
- if (col == vMaskColour)
+ if (vCol == vMaskColour)
{
- ::GpiSetColor(destPS, CLR_WHITE);
- ::GpiSetPel(destPS, &vPoint);
+ ::GpiSetColor(hPSDst, OS2RGB(0, 0, 0));
+ ::GpiSetPel(hPSDst, &vPt);
}
else
{
- ::GpiSetColor(destPS, CLR_BLACK);
- ::GpiSetPel(destPS, &vPoint);
+ ::GpiSetColor(hPSDst, OS2RGB(255, 255, 255));
+ ::GpiSetPel(hPSDst, &vPt);
}
}
}
- ::GpiDestroyPS(srcPS);
- ::GpiDestroyPS(destPS);
+ ::GpiSetBitmap(hPSSrc, NULL);
+ ::GpiSetBitmap(hPSDst, NULL);
+ ::GpiDestroyPS(hPSSrc);
+ ::GpiDestroyPS(hPSDst);
+ ::DevCloseDC(hDCSrc);
+ ::DevCloseDC(hDCDst);
return(TRUE);
-}
+} // end of wxMask::Create
// ----------------------------------------------------------------------------
// wxBitmapHandler
return(FALSE);
}
+// ----------------------------------------------------------------------------
+// Utility functions
+// ----------------------------------------------------------------------------
+HBITMAP wxInvertMask(
+ HBITMAP hBmpMask
+, int nWidth
+, int nHeight
+)
+{
+ HBITMAP hBmpInvMask = 0;
+
+ wxCHECK_MSG( hBmpMask, 0, _T("invalid bitmap in wxInvertMask") );
+
+ //
+ // Get width/height from the bitmap if not given
+ //
+ if (!nWidth || !nHeight)
+ {
+ BITMAPINFOHEADER2 vBmhdr;
+
+ ::GpiQueryBitmapInfoHeader( hBmpMask
+ ,&vBmhdr
+ );
+ nWidth = (int)vBmhdr.cx;
+ nHeight = (int)vBmhdr.cy;
+ }
+
+ BITMAPINFOHEADER2 vBmih;
+ SIZEL vSize = {0, 0};
+ DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
+ HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+ HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+ HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC);
+ HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC);
+ POINTL vPoint[4] = { 0 ,0, nWidth, nHeight,
+ 0, 0, nWidth, nHeight
+ };
+
+ memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2));
+ vBmih.cbFix = sizeof(BITMAPINFOHEADER2);
+ vBmih.cx = nWidth;
+ vBmih.cy = nHeight;
+ vBmih.cPlanes = 1;
+ vBmih.cBitCount = 1;
+
+ hBmpInvMask = ::GpiCreateBitmap( hPSDst
+ ,&vBmih
+ ,0L
+ ,NULL
+ ,NULL
+ );
+
+ ::GpiSetBitmap(hPSSrc, (HBITMAP) hBmpMask);
+ ::GpiSetBitmap(hPSDst, (HBITMAP) hBmpInvMask);
+
+ ::GpiBitBlt( hPSDst
+ ,hPSSrc
+ ,4L
+ ,vPoint
+ ,ROP_SRCINVERT
+ ,BBO_IGNORE
+ );
+
+ ::GpiDestroyPS(hPSSrc);
+ ::GpiDestroyPS(hPSDst);
+ ::DevCloseDC(hDCSrc);
+ ::DevCloseDC(hDCDst);
+
+ return hBmpInvMask;
+} // end of WxWinGdi_InvertMask
+
projects / wxWidgets.git / blobdiff