-/////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////
// Name: bitmap.cpp
// Purpose: wxBitmap
// Author: Julian Smart
#include "wx/msw/private.h"
#include "wx/log.h"
+#if !defined(__WXMICROWIN__)
#include "wx/msw/dib.h"
+#endif
+
#include "wx/image.h"
+#include "wx/xpmdecod.h"
// missing from mingw32 header
#ifndef CLR_INVALID
#define CLR_INVALID ((COLORREF)-1)
#endif // no CLR_INVALID
+// ----------------------------------------------------------------------------
+// Bitmap data
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData
+{
+public:
+ wxBitmapRefData();
+ virtual ~wxBitmapRefData() { Free(); }
+
+ virtual void Free();
+
+ // set the mask object to use as the mask, we take ownership of it
+ void SetMask(wxMask *mask)
+ {
+ delete m_bitmapMask;
+ m_bitmapMask = mask;
+ }
+
+ // set the HBITMAP to use as the mask
+ void SetMask(HBITMAP hbmpMask)
+ {
+ SetMask(new wxMask((WXHBITMAP)hbmpMask));
+ }
+
+ // return the mask
+ wxMask *GetMask() const { return m_bitmapMask; }
+
+public:
+ int m_numColors;
+#if wxUSE_PALETTE
+ wxPalette m_bitmapPalette;
+#endif // wxUSE_PALETTE
+
+ // MSW-specific
+ // ------------
+
+ // this field is solely for error checking: we detect selecting a bitmap
+ // into more than one DC at once or deleting a bitmap still selected into a
+ // DC (both are serious programming errors under Windows)
+ wxDC *m_selectedInto;
+
+#if wxUSE_DIB_FOR_BITMAP
+ // file mapping handle for large DIB's
+ HANDLE m_hFileMap;
+#endif // wxUSE_DIB_FOR_BITMAP
+
+private:
+ // optional mask for transparent drawing
+ wxMask *m_bitmapMask;
+
+ DECLARE_NO_COPY_CLASS(wxBitmapRefData)
+};
+
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
wxBitmapRefData::wxBitmapRefData()
{
- m_quality = 0;
m_selectedInto = NULL;
m_numColors = 0;
m_bitmapMask = NULL;
m_hBitmap = (WXHBITMAP) NULL;
+#if wxUSE_DIB_FOR_BITMAP
+ m_hFileMap = 0;
+#endif // wxUSE_DIB_FOR_BITMAP
}
void wxBitmapRefData::Free()
}
}
+#if wxUSE_DIB_FOR_BITMAP
+ if ( m_hFileMap )
+ {
+ ::CloseHandle(m_hFileMap);
+
+ m_hFileMap = 0;
+ }
+#endif // wxUSE_DIB_FOR_BITMAP
+
delete m_bitmapMask;
m_bitmapMask = NULL;
}
{
// m_refData = NULL; done in the base class ctor
- if ( wxTheBitmapList )
- wxTheBitmapList->AddBitmap(this);
+}
+
+wxGDIImageRefData *wxBitmap::CreateData() const
+{
+ return new wxBitmapRefData;
}
#ifdef __WIN32__
bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon)
{
+#ifndef __WXMICROWIN__
// it may be either HICON or HCURSOR
HICON hicon = (HICON)icon.GetHandle();
// the mask returned by GetIconInfo() is inversed compared to the usual
// wxWin convention
- refData->m_bitmapMask = new wxMask((WXHBITMAP)
- wxInvertMask(iconInfo.hbmMask, w, h));
+ refData->SetMask(wxInvertMask(iconInfo.hbmMask, w, h));
+
+
+ // delete the old one now as we don't need it any more
+ ::DeleteObject(iconInfo.hbmMask);
#if WXWIN_COMPATIBILITY_2
refData->m_ok = TRUE;
#endif // WXWIN_COMPATIBILITY_2
return TRUE;
+#else
+ return FALSE;
+#endif
}
#endif // Win32
wxBitmap::~wxBitmap()
{
- if (wxTheBitmapList)
- wxTheBitmapList->DeleteObject(this);
}
wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
{
Init();
+#ifndef __WXMICROWIN__
wxBitmapRefData *refData = new wxBitmapRefData;
m_refData = refData;
// 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!
- static const size_t bytesPerLine = (width + 7) / 8;
- static const size_t padding = bytesPerLine % 2;
- static const size_t len = height * ( padding + bytesPerLine );
+ const size_t bytesPerLine = (width + 7) / 8;
+ const size_t padding = bytesPerLine % 2;
+ const size_t len = height * ( padding + bytesPerLine );
data = (char *)malloc(len);
const char *src = bits;
char *dst = data;
}
SetHBITMAP((WXHBITMAP)hbmp);
+#endif
}
// Create from XPM data
bool wxBitmap::CreateFromXpm(const char **data)
{
+#if wxUSE_IMAGE && wxUSE_XPM
Init();
- return Create((void *)data, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
+ wxCHECK_MSG( data != NULL, FALSE, wxT("invalid bitmap data") )
+
+ wxXPMDecoder decoder;
+ wxImage img = decoder.ReadData(data);
+ wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") )
+
+ *this = wxBitmap(img);
+ return TRUE;
+#else
+ return FALSE;
+#endif
}
wxBitmap::wxBitmap(int w, int h, int d)
(void)Create(data, type, width, height, depth);
}
-wxBitmap::wxBitmap(const wxString& filename, long type)
+wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type)
{
Init();
m_refData = new wxBitmapRefData;
- GetBitmapData()->m_width = w;
- GetBitmapData()->m_height = h;
- GetBitmapData()->m_depth = d;
+#if wxUSE_DIB_FOR_BITMAP
+ if ( w && h && d >= 16 )
+ {
+ if ( !CreateDIB(w, h, d) )
+ return FALSE;
+ }
+ else
+#endif // wxUSE_DIB_FOR_BITMAP
+ {
+ GetBitmapData()->m_width = w;
+ GetBitmapData()->m_height = h;
+ GetBitmapData()->m_depth = d;
+
+ HBITMAP hbmp;
+#ifndef __WXMICROWIN__
+ if ( d > 0 )
+ {
+ hbmp = ::CreateBitmap(w, h, 1, d, NULL);
+ if ( !hbmp )
+ {
+ wxLogLastError(wxT("CreateBitmap"));
+ }
+ }
+ else
+#endif // !__WXMICROWIN__
+ {
+ ScreenHDC dc;
+ hbmp = ::CreateCompatibleBitmap(dc, w, h);
+ if ( !hbmp )
+ {
+ wxLogLastError(wxT("CreateCompatibleBitmap"));
+ }
+
+ GetBitmapData()->m_depth = wxDisplayDepth();
+ }
+
+ SetHBITMAP((WXHBITMAP)hbmp);
+
+#if WXWIN_COMPATIBILITY_2
+ GetBitmapData()->m_ok = hbmp != 0;
+#endif // WXWIN_COMPATIBILITY_2
+ }
+
+ return Ok();
+}
+
+#if wxUSE_DIB_FOR_BITMAP
+
+void *wxBitmap::CreateDIB(int width, int height, int depth)
+{
+ void *dibBits;
+ const int infosize = sizeof(BITMAPINFOHEADER);
+
+ BITMAPINFO *info = (BITMAPINFO *)malloc(infosize);
+ if ( info )
+ {
+ memset(info, 0, infosize);
+
+ info->bmiHeader.biSize = infosize;
+ info->bmiHeader.biWidth = width;
+ info->bmiHeader.biHeight = height;
+ info->bmiHeader.biPlanes = 1;
+ info->bmiHeader.biBitCount = depth;
+ info->bmiHeader.biCompression = BI_RGB;
+ info->bmiHeader.biSizeImage =
+ (((width * (depth/8)) + sizeof(DWORD) - 1) /
+ sizeof(DWORD) * sizeof(DWORD)) * height;
+ info->bmiHeader.biXPelsPerMeter = 0;
+ info->bmiHeader.biYPelsPerMeter = 0;
+ info->bmiHeader.biClrUsed = 0;
+ info->bmiHeader.biClrImportant = 0;
+ GetBitmapData()->m_hFileMap = ::CreateFileMapping
+ (
+ INVALID_HANDLE_VALUE,
+ 0,
+ PAGE_READWRITE | SEC_COMMIT,
+ 0,
+ info->bmiHeader.biSizeImage,
+ 0
+ );
+
+ // No need to report an error here. If it fails, we just won't use a
+ // file mapping and CreateDIBSection will just allocate memory for us.
+ GetBitmapData()->m_handle =
+ (WXHANDLE)::CreateDIBSection
+ (
+ 0,
+ info,
+ DIB_RGB_COLORS,
+ &dibBits,
+ GetBitmapData()->m_hFileMap,
+ 0
+ );
+
+ if ( !GetBitmapData()->m_handle )
+ wxLogLastError(wxT("CreateDIBSection"));
+
+ SetWidth(width);
+ SetHeight(height);
+ SetDepth(depth);
+
+ free(info);
+ }
+ else
+ {
+ wxFAIL_MSG( wxT("could not allocate memory for DIB header") );
+
+ dibBits = NULL;
+ }
+
+ return dibBits;
+}
+
+#endif // wxUSE_DIB_FOR_BITMAP
+
+// ----------------------------------------------------------------------------
+// wxImage to/from conversions
+// ----------------------------------------------------------------------------
+
+#if wxUSE_IMAGE
+
+bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
+{
+#ifdef __WXMICROWIN__
+
+ // Set this to 1 to experiment with mask code,
+ // which currently doesn't work
+#define USE_MASKS 0
+
+ m_refData = new wxBitmapRefData();
+
+ // Initial attempt at a simple-minded implementation.
+ // The bitmap will always be created at the screen depth,
+ // so the 'depth' argument is ignored.
+
+ HDC hScreenDC = ::GetDC(NULL);
+ int screenDepth = ::GetDeviceCaps(hScreenDC, BITSPIXEL);
+
+ HBITMAP hBitmap = ::CreateCompatibleBitmap(hScreenDC, image.GetWidth(), image.GetHeight());
+ HBITMAP hMaskBitmap = NULL;
+ HBITMAP hOldMaskBitmap = NULL;
+ HDC hMaskDC = NULL;
+ unsigned char maskR = 0;
+ unsigned char maskG = 0;
+ unsigned char maskB = 0;
+
+ // printf("Created bitmap %d\n", (int) hBitmap);
+ if (hBitmap == NULL)
+ {
+ ::ReleaseDC(NULL, hScreenDC);
+ return FALSE;
+ }
+ HDC hMemDC = ::CreateCompatibleDC(hScreenDC);
+
+ HBITMAP hOldBitmap = ::SelectObject(hMemDC, hBitmap);
+ ::ReleaseDC(NULL, hScreenDC);
+
+ // created an mono-bitmap for the possible mask
+ bool hasMask = image.HasMask();
+
+ if ( hasMask )
+ {
+#if USE_MASKS
+ // FIXME: we should be able to pass bpp = 1, but
+ // GdBlit can't handle a different depth
+#if 0
+ hMaskBitmap = ::CreateBitmap( (WORD)image.GetWidth(), (WORD)image.GetHeight(), 1, 1, NULL );
+#else
+ hMaskBitmap = ::CreateCompatibleBitmap( hMemDC, (WORD)image.GetWidth(), (WORD)image.GetHeight());
+#endif
+ maskR = image.GetMaskRed();
+ maskG = image.GetMaskGreen();
+ maskB = image.GetMaskBlue();
+
+ if (!hMaskBitmap)
+ {
+ hasMask = FALSE;
+ }
+ else
+ {
+ hScreenDC = ::GetDC(NULL);
+ hMaskDC = ::CreateCompatibleDC(hScreenDC);
+ ::ReleaseDC(NULL, hScreenDC);
- HBITMAP hbmp;
+ hOldMaskBitmap = ::SelectObject( hMaskDC, hMaskBitmap);
+ }
+#else
+ hasMask = FALSE;
+#endif
+ }
- if ( d > 0 )
+ int i, j;
+ for (i = 0; i < image.GetWidth(); i++)
{
- hbmp = ::CreateBitmap(w, h, 1, d, NULL);
- if ( !hbmp )
+ for (j = 0; j < image.GetHeight(); j++)
{
- wxLogLastError(wxT("CreateBitmap"));
+ unsigned char red = image.GetRed(i, j);
+ unsigned char green = image.GetGreen(i, j);
+ unsigned char blue = image.GetBlue(i, j);
+
+ ::SetPixel(hMemDC, i, j, PALETTERGB(red, green, blue));
+
+ if (hasMask)
+ {
+ // scan the bitmap for the transparent colour and set the corresponding
+ // pixels in the mask to BLACK and the rest to WHITE
+ if (maskR == red && maskG == green && maskB == blue)
+ ::SetPixel(hMaskDC, i, j, PALETTERGB(0, 0, 0));
+ else
+ ::SetPixel(hMaskDC, i, j, PALETTERGB(255, 255, 255));
+ }
}
}
+
+ ::SelectObject(hMemDC, hOldBitmap);
+ ::DeleteDC(hMemDC);
+ if (hasMask)
+ {
+ ::SelectObject(hMaskDC, hOldMaskBitmap);
+ ::DeleteDC(hMaskDC);
+
+ ((wxBitmapRefData*)m_refData)->SetMask(hMaskBitmap);
+ }
+
+ SetWidth(image.GetWidth());
+ SetHeight(image.GetHeight());
+ SetDepth(screenDepth);
+ SetHBITMAP( (WXHBITMAP) hBitmap );
+
+#if wxUSE_PALETTE
+ // Copy the palette from the source image
+ SetPalette(image.GetPalette());
+#endif // wxUSE_PALETTE
+
+#if WXWIN_COMPATIBILITY_2
+ // check the wxBitmap object
+ GetBitmapData()->SetOk();
+#endif // WXWIN_COMPATIBILITY_2
+
+ return TRUE;
+
+#else // !__WXMICROWIN__
+ wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
+
+ m_refData = new wxBitmapRefData();
+
+#if wxUSE_DIB_FOR_BITMAP
+ int h = image.GetHeight();
+ int w = image.GetWidth();
+ unsigned char *dibBits = (unsigned char*)CreateDIB(w, h, 24);
+ if ( !dibBits )
+ return FALSE;
+
+ // DIBs are stored in bottom to top order so we need to copy bits line by
+ // line and starting from the end
+ const int srcBytesPerLine = w * 3;
+ const int dstBytesPerLine = (srcBytesPerLine + sizeof(DWORD) - 1) /
+ sizeof(DWORD) * sizeof(DWORD);
+ const unsigned char *src = image.GetData() + ((h - 1) * srcBytesPerLine);
+ for ( int i = 0; i < h; i++ )
+ {
+ // copy one DIB line
+ int x = w;
+ const unsigned char *rgbBits = src;
+ while ( x-- )
+ {
+ // also, the order of RGB is inversed for DIBs
+ *dibBits++ = rgbBits[2];
+ *dibBits++ = rgbBits[1];
+ *dibBits++ = rgbBits[0];
+
+ rgbBits += 3;
+ }
+
+ // pass to the next line
+ src -= srcBytesPerLine;
+ dibBits += dstBytesPerLine - srcBytesPerLine;
+ }
+
+ if ( image.HasMask() )
+ {
+ SetMask(new wxMask(*this, wxColour(image.GetMaskRed(),
+ image.GetMaskGreen(),
+ image.GetMaskBlue())));
+ }
+#else // wxUSE_DIB_FOR_BITMAP
+ // sizeLimit is the MS upper limit for the DIB size
+#ifdef WIN32
+ int sizeLimit = 1024*768*3;
+#else
+ int sizeLimit = 0x7fff;
+#endif
+
+ // width and height of the device-dependent bitmap
+ int width = image.GetWidth();
+ int bmpHeight = image.GetHeight();
+
+ // calc the number of bytes per scanline and padding
+ int bytePerLine = width*3;
+ int sizeDWORD = sizeof( DWORD );
+ int lineBoundary = bytePerLine % sizeDWORD;
+ int padding = 0;
+ if( lineBoundary > 0 )
+ {
+ padding = sizeDWORD - lineBoundary;
+ bytePerLine += padding;
+ }
+ // calc the number of DIBs and heights of DIBs
+ int numDIB = 1;
+ int hRemain = 0;
+ int height = sizeLimit/bytePerLine;
+ if( height >= bmpHeight )
+ height = bmpHeight;
else
{
- ScreenHDC dc;
- hbmp = ::CreateCompatibleBitmap(dc, w, h);
- if ( !hbmp )
+ numDIB = bmpHeight / height;
+ hRemain = bmpHeight % height;
+ if( hRemain >0 ) numDIB++;
+ }
+
+ // set bitmap parameters
+ wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") );
+ SetWidth( width );
+ SetHeight( bmpHeight );
+ if (depth == -1) depth = wxDisplayDepth();
+ SetDepth( depth );
+
+#if wxUSE_PALETTE
+ // Copy the palette from the source image
+ SetPalette(image.GetPalette());
+#endif // wxUSE_PALETTE
+
+ // create a DIB header
+ int headersize = sizeof(BITMAPINFOHEADER);
+ BITMAPINFO *lpDIBh = (BITMAPINFO *) malloc( headersize );
+ wxCHECK_MSG( lpDIBh, FALSE, wxT("could not allocate memory for DIB header") );
+ // Fill in the DIB header
+ lpDIBh->bmiHeader.biSize = headersize;
+ lpDIBh->bmiHeader.biWidth = (DWORD)width;
+ lpDIBh->bmiHeader.biHeight = (DWORD)(-height);
+ lpDIBh->bmiHeader.biSizeImage = bytePerLine*height;
+ // the general formula for biSizeImage:
+ // ( ( ( ((DWORD)width*24) +31 ) & ~31 ) >> 3 ) * height;
+ lpDIBh->bmiHeader.biPlanes = 1;
+ lpDIBh->bmiHeader.biBitCount = 24;
+ lpDIBh->bmiHeader.biCompression = BI_RGB;
+ lpDIBh->bmiHeader.biClrUsed = 0;
+ // These seem not really needed for our purpose here.
+ lpDIBh->bmiHeader.biClrImportant = 0;
+ lpDIBh->bmiHeader.biXPelsPerMeter = 0;
+ lpDIBh->bmiHeader.biYPelsPerMeter = 0;
+ // memory for DIB data
+ unsigned char *lpBits;
+ lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage );
+ if( !lpBits )
+ {
+ wxFAIL_MSG( wxT("could not allocate memory for DIB") );
+ free( lpDIBh );
+ return FALSE;
+ }
+
+ // create and set the device-dependent bitmap
+ HDC hdc = ::GetDC(NULL);
+ HDC memdc = ::CreateCompatibleDC( hdc );
+ HBITMAP hbitmap;
+ hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight );
+ ::SelectObject( memdc, hbitmap);
+
+#if wxUSE_PALETTE
+ HPALETTE hOldPalette = 0;
+ if (image.GetPalette().Ok())
+ {
+ hOldPalette = ::SelectPalette(memdc, (HPALETTE) image.GetPalette().GetHPALETTE(), FALSE);
+ ::RealizePalette(memdc);
+ }
+#endif // wxUSE_PALETTE
+
+ // copy image data into DIB data and then into DDB (in a loop)
+ unsigned char *data = image.GetData();
+ int i, j, n;
+ int origin = 0;
+ unsigned char *ptdata = data;
+ unsigned char *ptbits;
+
+ for( n=0; n<numDIB; n++ )
+ {
+ if( numDIB > 1 && n == numDIB-1 && hRemain > 0 )
{
- wxLogLastError(wxT("CreateCompatibleBitmap"));
+ // redefine height and size of the (possibly) last smaller DIB
+ // memory is not reallocated
+ height = hRemain;
+ lpDIBh->bmiHeader.biHeight = (DWORD)(-height);
+ lpDIBh->bmiHeader.biSizeImage = bytePerLine*height;
}
+ ptbits = lpBits;
- GetBitmapData()->m_depth = wxDisplayDepth();
+ for( j=0; j<height; j++ )
+ {
+ for( i=0; i<width; i++ )
+ {
+ *(ptbits++) = *(ptdata+2);
+ *(ptbits++) = *(ptdata+1);
+ *(ptbits++) = *(ptdata );
+ ptdata += 3;
+ }
+ for( i=0; i< padding; i++ ) *(ptbits++) = 0;
+ }
+ ::StretchDIBits( memdc, 0, origin, width, height,\
+ 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY);
+ origin += height;
+ // if numDIB = 1, lines below can also be used
+ // hbitmap = CreateDIBitmap( hdc, &(lpDIBh->bmiHeader), CBM_INIT, lpBits, lpDIBh, DIB_RGB_COLORS );
+ // The above line is equivalent to the following two lines.
+ // hbitmap = ::CreateCompatibleBitmap( hdc, width, height );
+ // ::SetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS);
+ // or the following lines
+ // hbitmap = ::CreateCompatibleBitmap( hdc, width, height );
+ // HDC memdc = ::CreateCompatibleDC( hdc );
+ // ::SelectObject( memdc, hbitmap);
+ // ::SetDIBitsToDevice( memdc, 0, 0, width, height,
+ // 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS);
+ // ::SelectObject( memdc, 0 );
+ // ::DeleteDC( memdc );
}
+ SetHBITMAP( (WXHBITMAP) hbitmap );
- SetHBITMAP((WXHBITMAP)hbmp);
+#if wxUSE_PALETTE
+ if (hOldPalette)
+ SelectPalette(memdc, hOldPalette, FALSE);
+#endif // wxUSE_PALETTE
+
+ // similarly, created an mono-bitmap for the possible mask
+ if( image.HasMask() )
+ {
+ hbitmap = ::CreateBitmap( (WORD)width, (WORD)bmpHeight, 1, 1, NULL );
+ HGDIOBJ hbmpOld = ::SelectObject( memdc, hbitmap);
+ if( numDIB == 1 ) height = bmpHeight;
+ else height = sizeLimit/bytePerLine;
+ lpDIBh->bmiHeader.biHeight = (DWORD)(-height);
+ lpDIBh->bmiHeader.biSizeImage = bytePerLine*height;
+ origin = 0;
+ unsigned char r = image.GetMaskRed();
+ unsigned char g = image.GetMaskGreen();
+ unsigned char b = image.GetMaskBlue();
+ unsigned char zero = 0, one = 255;
+ ptdata = data;
+ for( n=0; n<numDIB; n++ )
+ {
+ if( numDIB > 1 && n == numDIB - 1 && hRemain > 0 )
+ {
+ // redefine height and size of the (possibly) last smaller DIB
+ // memory is not reallocated
+ height = hRemain;
+ lpDIBh->bmiHeader.biHeight = (DWORD)(-height);
+ lpDIBh->bmiHeader.biSizeImage = bytePerLine*height;
+ }
+ ptbits = lpBits;
+ for( int j=0; j<height; j++ )
+ {
+ for(i=0; i<width; i++ )
+ {
+ // was causing a code gen bug in cw : if( ( cr !=r) || (cg!=g) || (cb!=b) )
+ unsigned char cr = (*(ptdata++)) ;
+ unsigned char cg = (*(ptdata++)) ;
+ unsigned char cb = (*(ptdata++)) ;
+
+ if( ( cr !=r) || (cg!=g) || (cb!=b) )
+ {
+ *(ptbits++) = one;
+ *(ptbits++) = one;
+ *(ptbits++) = one;
+ }
+ else
+ {
+ *(ptbits++) = zero;
+ *(ptbits++) = zero;
+ *(ptbits++) = zero;
+ }
+ }
+ for( i=0; i< padding; i++ ) *(ptbits++) = zero;
+ }
+ ::StretchDIBits( memdc, 0, origin, width, height,\
+ 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY);
+ origin += height;
+ }
+ // create a wxMask object
+ wxMask *mask = new wxMask();
+ mask->SetMaskBitmap( (WXHBITMAP) hbitmap );
+ SetMask( mask );
+ // It will be deleted when the wxBitmap object is deleted (as of 01/1999)
+ /* The following can also be used but is slow to run
+ wxColour colour( GetMaskRed(), GetMaskGreen(), GetMaskBlue());
+ wxMask *mask = new wxMask( *this, colour );
+ SetMask( mask );
+ */
+
+ ::SelectObject( memdc, hbmpOld );
+ }
+
+ // free allocated resources
+ ::DeleteDC( memdc );
+ ::ReleaseDC(NULL, hdc);
+ free(lpDIBh);
+ free(lpBits);
+#endif // wxUSE_DIB_FOR_BITMAP
#if WXWIN_COMPATIBILITY_2
- GetBitmapData()->m_ok = hbmp != 0;
+ // check the wxBitmap object
+ GetBitmapData()->SetOk();
#endif // WXWIN_COMPATIBILITY_2
- return Ok();
+ return TRUE;
+#endif // __WXMICROWIN__/!__WXMICROWIN__
}
+wxImage wxBitmap::ConvertToImage() const
+{
+#ifdef __WXMICROWIN__
+ // Initial attempt at a simple-minded implementation.
+ // The bitmap will always be created at the screen depth,
+ // so the 'depth' argument is ignored.
+ // TODO: transparency (create a mask image)
+
+ if (!Ok())
+ {
+ wxFAIL_MSG( wxT("bitmap is invalid") );
+ return wxNullImage;
+ }
+
+ wxImage image;
+
+ wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
+
+ // create an wxImage object
+ int width = GetWidth();
+ int height = GetHeight();
+ image.Create( width, height );
+ unsigned char *data = image.GetData();
+ if( !data )
+ {
+ wxFAIL_MSG( wxT("could not allocate data for image") );
+ return wxNullImage;
+ }
+
+ HDC hScreenDC = ::GetDC(NULL);
+
+ HDC hMemDC = ::CreateCompatibleDC(hScreenDC);
+ ::ReleaseDC(NULL, hScreenDC);
+
+ HBITMAP hBitmap = (HBITMAP) GetHBITMAP();
+
+ HBITMAP hOldBitmap = ::SelectObject(hMemDC, hBitmap);
+
+ int i, j;
+ for (i = 0; i < GetWidth(); i++)
+ {
+ for (j = 0; j < GetHeight(); j++)
+ {
+ COLORREF color = ::GetPixel(hMemDC, i, j);
+ unsigned char red = GetRValue(color);
+ unsigned char green = GetGValue(color);
+ unsigned char blue = GetBValue(color);
+
+ image.SetRGB(i, j, red, green, blue);
+ }
+ }
+
+ ::SelectObject(hMemDC, hOldBitmap);
+ ::DeleteDC(hMemDC);
+
+#if wxUSE_PALETTE
+ // Copy the palette from the source image
+ if (GetPalette())
+ image.SetPalette(* GetPalette());
+#endif // wxUSE_PALETTE
+
+ return image;
+
+#else // !__WXMICROWIN__
+ wxImage image;
+
+ wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
+
+ // create an wxImage object
+ int width = GetWidth();
+ int height = GetHeight();
+ image.Create( width, height );
+ unsigned char *data = image.GetData();
+ if( !data )
+ {
+ wxFAIL_MSG( wxT("could not allocate data for image") );
+ return wxNullImage;
+ }
+
+ // calc the number of bytes per scanline and padding in the DIB
+ int bytePerLine = width*3;
+ int sizeDWORD = sizeof( DWORD );
+ int lineBoundary = bytePerLine % sizeDWORD;
+ int padding = 0;
+ if( lineBoundary > 0 )
+ {
+ padding = sizeDWORD - lineBoundary;
+ bytePerLine += padding;
+ }
+
+ // create a DIB header
+ int headersize = sizeof(BITMAPINFOHEADER);
+ BITMAPINFO *lpDIBh = (BITMAPINFO *) malloc( headersize );
+ if( !lpDIBh )
+ {
+ wxFAIL_MSG( wxT("could not allocate data for DIB header") );
+ free( data );
+ return wxNullImage;
+ }
+ // Fill in the DIB header
+ lpDIBh->bmiHeader.biSize = headersize;
+ lpDIBh->bmiHeader.biWidth = width;
+ lpDIBh->bmiHeader.biHeight = -height;
+ lpDIBh->bmiHeader.biSizeImage = bytePerLine * height;
+ lpDIBh->bmiHeader.biPlanes = 1;
+ lpDIBh->bmiHeader.biBitCount = 24;
+ lpDIBh->bmiHeader.biCompression = BI_RGB;
+ lpDIBh->bmiHeader.biClrUsed = 0;
+ // These seem not really needed for our purpose here.
+ lpDIBh->bmiHeader.biClrImportant = 0;
+ lpDIBh->bmiHeader.biXPelsPerMeter = 0;
+ lpDIBh->bmiHeader.biYPelsPerMeter = 0;
+ // memory for DIB data
+ unsigned char *lpBits;
+ lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage );
+ if( !lpBits )
+ {
+ wxFAIL_MSG( wxT("could not allocate data for DIB") );
+ free( data );
+ free( lpDIBh );
+ return wxNullImage;
+ }
+
+ // copy data from the device-dependent bitmap to the DIB
+ HDC hdc = ::GetDC(NULL);
+ HBITMAP hbitmap;
+ hbitmap = (HBITMAP) GetHBITMAP();
+ ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS );
+
+ // copy DIB data into the wxImage object
+ int i, j;
+ unsigned char *ptdata = data;
+ unsigned char *ptbits = lpBits;
+ for( i=0; i<height; i++ )
+ {
+ for( j=0; j<width; j++ )
+ {
+ *(ptdata++) = *(ptbits+2);
+ *(ptdata++) = *(ptbits+1);
+ *(ptdata++) = *(ptbits );
+ ptbits += 3;
+ }
+ ptbits += padding;
+ }
+
+ // similarly, set data according to the possible mask bitmap
+ if( GetMask() && GetMask()->GetMaskBitmap() )
+ {
+ hbitmap = (HBITMAP) GetMask()->GetMaskBitmap();
+ // memory DC created, color set, data copied, and memory DC deleted
+ HDC memdc = ::CreateCompatibleDC( hdc );
+ ::SetTextColor( memdc, RGB( 0, 0, 0 ) );
+ ::SetBkColor( memdc, RGB( 255, 255, 255 ) );
+ ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS );
+ ::DeleteDC( memdc );
+ // background color set to RGB(16,16,16) in consistent with wxGTK
+ unsigned char r=16, g=16, b=16;
+ ptdata = data;
+ ptbits = lpBits;
+ for( i=0; i<height; i++ )
+ {
+ for( j=0; j<width; j++ )
+ {
+ if( *ptbits != 0 )
+ ptdata += 3;
+ else
+ {
+ *(ptdata++) = r;
+ *(ptdata++) = g;
+ *(ptdata++) = b;
+ }
+ ptbits += 3;
+ }
+ ptbits += padding;
+ }
+ image.SetMaskColour( r, g, b );
+ image.SetMask( TRUE );
+ }
+ else
+ {
+ image.SetMask( FALSE );
+ }
+ // free allocated resources
+ ::ReleaseDC(NULL, hdc);
+ free(lpDIBh);
+ free(lpBits);
+
+ return image;
+#endif // __WXMICROWIN__/!__WXMICROWIN__
+}
+
+#endif // wxUSE_IMAGE
+
bool wxBitmap::LoadFile(const wxString& filename, long type)
{
UnRef();
return handler->LoadFile(this, filename, type, -1, -1);
}
+#if wxUSE_IMAGE
else
{
wxImage image;
- if ( !image.LoadFile( filename, type ) || !image.Ok() )
- return FALSE;
-
- *this = image.ConvertToBitmap();
+ if ( image.LoadFile( filename, type ) && image.Ok() )
+ {
+ *this = wxBitmap(image);
- return TRUE;
+ return TRUE;
+ }
}
+#endif // wxUSE_IMAGE
+
+ return FALSE;
}
bool wxBitmap::Create(void *data, long type, int width, int height, int depth)
if ( !handler )
{
- wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for type %d defined."), type);
+ wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for type %ld defined."), type);
return FALSE;
}
return handler->Create(this, data, type, width, height, depth);
}
-bool wxBitmap::SaveFile(const wxString& filename, int type, const wxPalette *palette)
+bool wxBitmap::SaveFile(const wxString& filename,
+ int type,
+ const wxPalette *palette)
{
wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler);
{
return handler->SaveFile(this, filename, type, palette);
}
+#if wxUSE_IMAGE
else
{
// FIXME what about palette? shouldn't we use it?
- wxImage image( *this );
- if (!image.Ok())
- return FALSE;
-
- return image.SaveFile( filename, type );
+ wxImage image = ConvertToImage();
+ if ( image.Ok() )
+ {
+ return image.SaveFile(filename, type);
+ }
}
+#endif // wxUSE_IMAGE
+
+ return FALSE;
}
// ----------------------------------------------------------------------------
wxBitmap ret( rect.width, rect.height, GetDepth() );
wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
+#ifndef __WXMICROWIN__
// copy bitmap data
- HDC dcSrc = ::CreateCompatibleDC(NULL);
- HDC dcDst = ::CreateCompatibleDC(NULL);
- SelectObject(dcSrc, (HBITMAP) GetHBITMAP());
- SelectObject(dcDst, (HBITMAP) ret.GetHBITMAP());
- BitBlt(dcDst, 0, 0, rect.width, rect.height, dcSrc, rect.x, rect.y, SRCCOPY);
+ MemoryHDC dcSrc, dcDst;
+
+ {
+ SelectInHDC selectSrc(dcSrc, GetHbitmap()),
+ selectDst(dcDst, GetHbitmapOf(ret));
+
+ if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height,
+ dcSrc, rect.x, rect.y, SRCCOPY) )
+ {
+ wxLogLastError(_T("BitBlt"));
+ }
+ }
// copy mask if there is one
- if (GetMask())
+ if ( GetMask() )
{
HBITMAP hbmpMask = ::CreateBitmap(rect.width, rect.height, 1, 1, 0);
- SelectObject(dcSrc, (HBITMAP) GetMask()->GetMaskBitmap());
- SelectObject(dcDst, (HBITMAP) hbmpMask);
- BitBlt(dcDst, 0, 0, rect.width, rect.height, dcSrc, rect.x, rect.y, SRCCOPY);
+ SelectInHDC selectSrc(dcSrc, (HBITMAP) GetMask()->GetMaskBitmap()),
+ selectDst(dcDst, hbmpMask);
+
+ if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height,
+ dcSrc, rect.x, rect.y, SRCCOPY) )
+ {
+ wxLogLastError(_T("BitBlt"));
+ }
wxMask *mask = new wxMask((WXHBITMAP) hbmpMask);
ret.SetMask(mask);
}
-
- SelectObject(dcDst, NULL);
- SelectObject(dcSrc, NULL);
- DeleteDC(dcDst);
- DeleteDC(dcSrc);
+#endif // !__WXMICROWIN__
return ret;
}
// wxBitmap accessors
// ----------------------------------------------------------------------------
-void wxBitmap::SetQuality(int q)
+wxPalette* wxBitmap::GetPalette() const
{
- EnsureHasData();
+ return GetBitmapData() ? &GetBitmapData()->m_bitmapPalette
+ : (wxPalette *) NULL;
+}
- GetBitmapData()->m_quality = q;
+wxMask *wxBitmap::GetMask() const
+{
+ return GetBitmapData() ? GetBitmapData()->GetMask() : (wxMask *) NULL;
}
-#if WXWIN_COMPATIBILITY_2
-void wxBitmap::SetOk(bool isOk)
+wxDC *wxBitmap::GetSelectedInto() const
{
- EnsureHasData();
+ return GetBitmapData() ? GetBitmapData()->m_selectedInto : (wxDC *) NULL;
+}
- GetBitmapData()->m_ok = isOk;
+#if wxUSE_DIB_FOR_BITMAP
+
+bool wxBitmap::IsDIB() const
+{
+ return GetBitmapData() && GetBitmapData()->m_hFileMap != NULL;
+}
+
+#endif // wxUSE_DIB_FOR_BITMAP
+
+#if WXWIN_COMPATIBILITY_2_4
+
+int wxBitmap::GetQuality() const
+{
+ return 0;
+}
+
+#endif // WXWIN_COMPATIBILITY_2_4
+
+// ----------------------------------------------------------------------------
+// wxBitmap setters
+// ----------------------------------------------------------------------------
+
+void wxBitmap::SetSelectedInto(wxDC *dc)
+{
+ if ( GetBitmapData() )
+ GetBitmapData()->m_selectedInto = dc;
}
-#endif // WXWIN_COMPATIBILITY_2
+
+#if wxUSE_PALETTE
void wxBitmap::SetPalette(const wxPalette& palette)
{
GetBitmapData()->m_bitmapPalette = palette;
}
+#endif // wxUSE_PALETTE
+
void wxBitmap::SetMask(wxMask *mask)
{
EnsureHasData();
- GetBitmapData()->m_bitmapMask = mask;
+ GetBitmapData()->SetMask(mask);
}
+#if WXWIN_COMPATIBILITY_2
+
+void wxBitmap::SetOk(bool isOk)
+{
+ EnsureHasData();
+
+ GetBitmapData()->m_ok = isOk;
+}
+
+#endif // WXWIN_COMPATIBILITY_2
+
+#if WXWIN_COMPATIBILITY_2_4
+
+void wxBitmap::SetQuality(int WXUNUSED(quality))
+{
+}
+
+#endif // WXWIN_COMPATIBILITY_2_4
+
+// ----------------------------------------------------------------------------
+// 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( 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
wxFreeDIB(lpDib);
return tmpBitmap;
+#endif
}
// ----------------------------------------------------------------------------
// Create a mask from a mono bitmap (copies the bitmap).
bool wxMask::Create(const wxBitmap& bitmap)
{
+#ifndef __WXMICROWIN__
wxCHECK_MSG( bitmap.Ok() && bitmap.GetDepth() == 1, FALSE,
_T("can't create mask from invalid or not monochrome bitmap") );
SelectObject(destDC, 0);
DeleteDC(destDC);
return TRUE;
+#else
+ return FALSE;
+#endif
}
// Create a mask from a bitmap and a palette index indicating
::DeleteObject((HBITMAP) m_maskBitmap);
m_maskBitmap = 0;
}
+
+#if wxUSE_PALETTE
if (bitmap.Ok() && bitmap.GetPalette()->Ok())
{
unsigned char red, green, blue;
return Create(bitmap, transparentColour);
}
}
+#endif // wxUSE_PALETTE
+
return FALSE;
}
// the transparent area
bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
{
+#ifndef __WXMICROWIN__
wxCHECK_MSG( bitmap.Ok(), FALSE, _T("invalid bitmap in wxMask::Create") );
if ( m_maskBitmap )
// scan the bitmap for the transparent colour and set the corresponding
// pixels in the mask to BLACK and the rest to WHITE
- COLORREF maskColour = wxColourToRGB(colour);
+ COLORREF maskColour = wxColourToPalRGB(colour);
m_maskBitmap = (WXHBITMAP)::CreateBitmap(width, height, 1, 1, 0);
HDC srcDC = ::CreateCompatibleDC(NULL);
bool ok = TRUE;
+ // SelectObject() will fail
+ wxASSERT_MSG( !bitmap.GetSelectedInto(),
+ _T("bitmap can't be selected in another DC") );
+
HGDIOBJ hbmpSrcOld = ::SelectObject(srcDC, GetHbitmapOf(bitmap));
if ( !hbmpSrcOld )
{
ok = FALSE;
}
- // this is not very efficient, but I can't think of a better way of doing
- // it
- for ( int w = 0; ok && (w < width); w++ )
+ if ( ok )
{
- for ( int h = 0; ok && (h < height); h++ )
- {
- COLORREF col = GetPixel(srcDC, w, h);
- if ( col == CLR_INVALID )
- {
- wxLogLastError(wxT("GetPixel"));
-
- // doesn't make sense to continue
- ok = FALSE;
-
- break;
- }
-
- if ( col == maskColour )
- {
- ::SetPixel(destDC, w, h, RGB(0, 0, 0));
- }
- else
- {
- ::SetPixel(destDC, w, h, RGB(255, 255, 255));
- }
- }
+ // this will create a monochrome bitmap with 0 points for the pixels
+ // which have the same value as the background colour and 1 for the
+ // others
+ ::SetBkColor(srcDC, maskColour);
+ ::BitBlt(destDC, 0, 0, width, height, srcDC, 0, 0, NOTSRCCOPY);
}
::SelectObject(srcDC, hbmpSrcOld);
::DeleteDC(destDC);
return ok;
+#else // __WXMICROWIN__
+ return FALSE;
+#endif // __WXMICROWIN__/!__WXMICROWIN__
}
// ----------------------------------------------------------------------------
{
wxBitmap *bitmap = wxDynamicCast(image, wxBitmap);
- return bitmap ? Create(bitmap, data, width, height, depth) : FALSE;
+ return bitmap ? Create(bitmap, data, flags, width, height, depth) : FALSE;
}
bool wxBitmapHandler::Load(wxGDIImage *image,
// DIB functions
// ----------------------------------------------------------------------------
+#ifndef __WXMICROWIN__
bool wxCreateDIB(long xSize, long ySize, long bitsPerPixel,
HPALETTE hPal, LPBITMAPINFO* lpDIBHeader)
{
{
free(lpDIBHeader);
}
+#endif
// ----------------------------------------------------------------------------
// other helper functions
extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h)
{
+#ifndef __WXMICROWIN__
wxCHECK_MSG( hbmpMask, 0, _T("invalid bitmap in wxInvertMask") );
// get width/height from the bitmap if not given
::DeleteDC(hdcDst);
return hbmpInvMask;
+#else
+ return 0;
+#endif
}
projects / wxWidgets.git / blobdiff