// Constructor.
KeyboardPage::KeyboardPage()
{
// Setup icon.
m_nIcon = IDI_KEYBOARD;
// Load bitmaps.
m_hImages = ImageList_LoadImage( ClsGetResourceHandle(), MAKEINTRESOURCE( IDB_CLIST ), 16, 0, RGB( 255, 0, 255 ), IMAGE_BITMAP, LR_CREATEDIBSECTION);
m_hDisImages = ImageList_LoadImage( ClsGetResourceHandle(), MAKEINTRESOURCE( IDB_CLIST_GRAY ), 16, 0, RGB( 255, 0, 255 ), IMAGE_BITMAP, LR_CREATEDIBSECTION);
}
// Load a bitmap.
BOOL ClsBitmap::LoadBitmap( LPCTSTR pszBitmap )
{
// Attach the loaded bitmap.
UINT uFlags = ( pszBitmap && HIWORD( pszBitmap ) == 0 ) ? 0 : LR_LOADFROMFILE;
Attach( ::LoadImage( ClsGetResourceHandle(), pszBitmap, IMAGE_BITMAP, 0, 0, uFlags ));
return ( BOOL )( m_hGdiObject ? TRUE : FALSE );
}
// Load a mapped bitmap.
BOOL ClsBitmap::LoadMappedBitmap( LPCTSTR pszBitmap, UINT nFlags, LPCOLORMAP pColorMap /* = NULL */, int nMapSize /* = 0 */ )
{
// Valid name?
if ( pszBitmap )
{
// From the resources?
if ( HIWORD( pszBitmap ) == 0 )
// Attach the mapped bitmap.
Attach( ::CreateMappedBitmap( ClsGetResourceHandle(), ( UINT )pszBitmap, nFlags, pColorMap, nMapSize ));
else
{
// Load the bitmap from the file. This code is based on the code
// from "Creating a bitmap object from a BMP file - Zafir Anjum (1998/08/05)"
// at www.codeguru.com.
ClsFile file;
HBITMAP hBitmap = NULL;
HGLOBAL hDIB = NULL;
int nColors = 0;
try
{
// Open the file.
file.Open( pszBitmap, ClsFile::fileRead | ClsFile::fileShareRead );
// Read the file header.
BITMAPFILEHEADER bmfHeader;
file.Read( &bmfHeader, sizeof( bmfHeader ));
// Is the file of the right type?
if ( bmfHeader.bfType == (( WORD )( 'M' << 8 ) | 'B' ))
{
// Allocate memory for the file.
DWORD nPackedDIBLen = file.GetFileSize( NULL ) - sizeof( BITMAPFILEHEADER );
hDIB = ::GlobalAlloc( GMEM_FIXED, nPackedDIBLen );
if ( hDIB )
{
// Read the entire file.
file.Read( hDIB, nPackedDIBLen );
// Cast pointers.
LPBITMAPINFOHEADER pbmiHeader = ( LPBITMAPINFOHEADER )hDIB;
LPBITMAPINFO pbmInfo = ( LPBITMAPINFO )hDIB;
// Determine the amount of colors present.
nColors = pbmiHeader->biClrUsed ? pbmiHeader->biClrUsed : 1 << pbmiHeader->biBitCount;
LPVOID lpDIBBits;
// Get a pointer to the "real" bitmap bits.
if ( pbmInfo->bmiHeader.biBitCount > 8 )
lpDIBBits = ( LPVOID )(( LPDWORD )( pbmInfo->bmiColors + pbmInfo->bmiHeader.biClrUsed ) +
(( pbmInfo->bmiHeader.biCompression == BI_BITFIELDS ) ? 3 : 0 ));
else
lpDIBBits = ( LPVOID )( pbmInfo->bmiColors + nColors );
// 256 colors or less. Higher color bitmaps do not carry
// color information. These bitmaps are mapped via the
// GetMappedBitmap() method.
if ( nColors <= 256 && pColorMap )
{
COLORREF cr;
int i, a;
// Iterate colors.
for ( i = 0 ; i < nColors; i++ )
{
// Create a COLORREF from the entry.
cr = RGB( pbmInfo->bmiColors[ i ].rgbRed, pbmInfo->bmiColors[ i ].rgbGreen, pbmInfo->bmiColors[ i ].rgbBlue );
// Iterate the color map.
for ( a = 0; a < nMapSize; a++ )
{
// Map this color?
if ( cr == pColorMap[ a ].from )
{
// Map the color.
pbmInfo->bmiColors[ i ].rgbRed = GetRValue( pColorMap[ a ].to );
pbmInfo->bmiColors[ i ].rgbGreen = GetGValue( pColorMap[ a ].to );
pbmInfo->bmiColors[ i ].rgbBlue = GetBValue( pColorMap[ a ].to );
break;
}
}
}
}
// Create a display DC.
ClsDC dc;
if ( dc.CreateDC( _T( "DISPLAY" ), NULL, NULL, NULL ))
{
// Create the bitmap.
hBitmap = CreateDIBitmap( dc,
pbmiHeader,
CBM_INIT,
lpDIBBits,
pbmInfo,
DIB_RGB_COLORS );
// Release the DC.
dc.DeleteDC();
}
}
// Free the memory.
::GlobalFree( hDIB );
}
// Attach the bitmap.
if ( hBitmap )
{
// Attach the bitmap.
Attach( hBitmap );
// If the DIB does not have a colormap we map all
// the bits by calling the GetMappedBitmap() method.
if ( nColors > 256 && pColorMap && nMapSize )
{
// Create the mapped version and replace the current
// bitmap by the mapped one.
HBITMAP hMapped = GetMappedBitmap( pColorMap, nMapSize );
if ( hMapped )
{
Delete();
Attach( hMapped );
return TRUE;
}
return FALSE;
}
return TRUE;
}
return FALSE;
}
catch( ClsFileException& )
{
if ( hDIB ) ::GlobalFree( hDIB );
return FALSE;
}
catch( ClsMemoryException& )
{
return FALSE;
}
}
}
return FALSE;
}
// Create a mapped bitmap.
BOOL ClsBitmap::CreateMappedBitmap( int idBitmap, UINT nFlags, LPCOLORMAP pColorMap /* = NULL */, int nMapSize /* = 0 */ )
{
// Attach the bitmap.
Attach( ::CreateMappedBitmap( ClsGetResourceHandle(), idBitmap, nFlags, pColorMap, nMapSize ));
return ( BOOL )( m_hGdiObject ? TRUE : FALSE );
}
