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Bitmap button updates

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@17091 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
David Webster
2002-09-09 03:08:12 +00:00
parent 4147efe9ab
commit db16e5c3aa
7 changed files with 581 additions and 504 deletions
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218
src/os2/utils.cpp
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@@ -1303,3 +1303,221 @@ void wxOS2SetFont(
}
::WinSetPresParam(hWnd, PP_FONTNAMESIZE, strlen(zFont) + 1, (PVOID)zFont);
} // end of wxOS2SetFont
// ---------------------------------------------------------------------------
// Helper for taking a regular bitmap and giving it a disabled look
// ---------------------------------------------------------------------------
wxBitmap wxDisableBitmap(
const wxBitmap& rBmp
, long lColor
)
{
wxMask* pMask = rBmp.GetMask();
if (!pMask)
return(wxNullBitmap);
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);
BITMAPINFOHEADER2 vHeader;
BITMAPINFO2 vInfo;
ERRORID vError;
wxString sError;
HBITMAP hBitmap = (HBITMAP)rBmp.GetHBITMAP();
HBITMAP hOldBitmap = NULLHANDLE;
HBITMAP hOldMask = NULLHANDLE;
HBITMAP hMask = (HBITMAP)rBmp.GetMask()->GetMaskBitmap();
unsigned char* pucBits; // buffer that will contain the bitmap data
unsigned char* pucData; // pointer to use to traverse bitmap data
unsigned char* pucBitsMask; // buffer that will contain the mask data
unsigned char* pucDataMask; // pointer to use to traverse mask data
LONG lScans = 0L;
LONG lScansSet = 0L;
bool bpp16 = (wxDisplayDepth() == 16);
memset(&vHeader, '\0', 16);
vHeader.cbFix = 16;
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
//
// 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;
//
// 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());
memset(pucBits, '\0', (nBytesPerLine * rBmp.GetHeight()));
pucBitsMask = (unsigned char *)malloc(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);
}
::GpiQueryBitmapInfoHeader(hBitmap, &vHeader);
vInfo.cBitCount = 24;
if ((lScans = ::GpiQueryBitmapBits( hPS
,0L
,(LONG)rBmp.GetHeight()
,(PBYTE)pucBits
,&vInfo
)) == GPI_ALTERROR)
{
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
if ((hOldMask = ::GpiSetBitmap(hPS, hMask)) == HBM_ERROR)
{
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
::GpiQueryBitmapInfoHeader(hMask, &vHeader);
vInfo.cBitCount = 24;
if ((lScans = ::GpiQueryBitmapBits( hPS
,0L
,(LONG)rBmp.GetHeight()
,(PBYTE)pucBitsMask
,&vInfo
)) == GPI_ALTERROR)
{
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
if (( hMask = ::GpiSetBitmap(hPS, hOldMask)) == HBM_ERROR)
{
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
pucData = pucBits;
pucDataMask = pucBitsMask;
//
// Get the mask value
//
for (i = 0; i < rBmp.GetHeight(); i++)
{
for (j = 0; j < rBmp.GetWidth(); j++)
{
// Byte 1
if (bpp16 && *pucDataMask == 0xF8) // 16 bit display gobblygook
{
*pucData = 0x7F;
pucData++;
}
else if (*pucDataMask == 0xFF) // set to grey
{
*pucData = 0x7F;
pucData++;
}
else
{
*pucData = ((unsigned char)(lColor >> 16));
pucData++;
}
// Byte 2
if (bpp16 && *(pucDataMask + 1) == 0xFC) // 16 bit display gobblygook
{
*pucData = 0x7F;
pucData++;
}
else if (*(pucDataMask + 1) == 0xFF) // set to grey
{
*pucData = 0x7F;
pucData++;
}
else
{
*pucData = ((unsigned char)(lColor >> 8));
pucData++;
}
// Byte 3
if (bpp16 && *(pucDataMask + 2) == 0xF8) // 16 bit display gobblygook
{
*pucData = 0x7F;
pucData++;
}
else if (*(pucDataMask + 2) == 0xFF) // set to grey
{
*pucData = 0x7F;
pucData++;
}
else
{
*pucData = ((unsigned char)lColor);
pucData++;
}
pucDataMask += 3;
}
for (j = 0; j < nPadding; j++)
{
pucData++;
pucDataMask++;
}
}
//
// Create a new bitmap and set the modified bits
//
wxBitmap vNewBmp( rBmp.GetWidth()
,rBmp.GetHeight()
,24
);
HBITMAP hNewBmp = (HBITMAP)vNewBmp.GetHBITMAP();
if ((hOldBitmap = ::GpiSetBitmap(hPS, hNewBmp)) == HBM_ERROR)
{
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
if ((lScansSet = ::GpiSetBitmapBits( hPS
,0L
,(LONG)rBmp.GetHeight()
,(PBYTE)pucBits
,&vInfo
)) == GPI_ALTERROR)
{
vError = ::WinGetLastError(vHabmain);
sError = wxPMErrorToStr(vError);
}
wxMask* pNewMask;
pNewMask = new wxMask(pMask->GetMaskBitmap());
vNewBmp.SetMask(pNewMask);
free(pucBits);
::GpiSetBitmap(hPS, NULLHANDLE);
::GpiDestroyPS(hPS);
::DevCloseDC(hDC);
if (vNewBmp.Ok())
return(vNewBmp);
return(wxNullBitmap);
} // end of wxDisableBitmap