-/////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////
// 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:
+#if wxUSE_PALETTE
+ wxPalette m_bitmapPalette;
+#endif // wxUSE_PALETTE
+
+ // MSW-specific
+ // ------------
+
+#ifdef __WXDEBUG__
+ // 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;
+#endif // __WXDEBUG__
+
+ // true if we have alpha transparency info and can be drawn using
+ // AlphaBlend()
+ bool m_hasAlpha;
+
+private:
+ // optional mask for transparent drawing
+ wxMask *m_bitmapMask;
+
+ DECLARE_NO_COPY_CLASS(wxBitmapRefData)
+};
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
- IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
- IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
+IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
+IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
- IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
+IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
// ============================================================================
// implementation
wxBitmapRefData::wxBitmapRefData()
{
- m_quality = 0;
+#ifdef __WXDEBUG__
m_selectedInto = NULL;
- m_numColors = 0;
+#endif
m_bitmapMask = NULL;
m_hBitmap = (WXHBITMAP) NULL;
+ m_hasAlpha = FALSE;
}
void wxBitmapRefData::Free()
{
if ( !::DeleteObject((HBITMAP)m_hBitmap) )
{
- wxLogLastError("DeleteObject(hbitmap)");
+ wxLogLastError(wxT("DeleteObject(hbitmap)"));
}
}
{
// 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();
ICONINFO iconInfo;
if ( !::GetIconInfo(hicon, &iconInfo) )
{
- wxLogLastError("GetIconInfo");
+ wxLogLastError(wxT("GetIconInfo"));
return FALSE;
}
// the mask returned by GetIconInfo() is inversed compared to the usual
// wxWin convention
- HBITMAP hbmpMask = ::CreateBitmap(w, h, 1, 1, 0);
-
- // the icons mask is opposite to the usual wxWin convention
- HDC dcSrc = ::CreateCompatibleDC(NULL);
- HDC dcDst = ::CreateCompatibleDC(NULL);
- (void)SelectObject(dcSrc, iconInfo.hbmMask);
- (void)SelectObject(dcDst, hbmpMask);
-
- HBRUSH brush = ::CreateSolidBrush(RGB(255, 255, 255));
- RECT rect = { 0, 0, w, h };
- FillRect(dcDst, &rect, brush);
-
- BitBlt(dcDst, 0, 0, w, h, dcSrc, 0, 0, SRCINVERT);
+ refData->SetMask(wxInvertMask(iconInfo.hbmMask, w, h));
- SelectObject(dcDst, NULL);
- SelectObject(dcSrc, NULL);
- DeleteDC(dcDst);
- DeleteDC(dcSrc);
- refData->m_bitmapMask = new wxMask((WXHBITMAP)hbmpMask);
+ // 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;
refData->m_width = width;
refData->m_height = height;
refData->m_depth = depth;
- refData->m_numColors = 0;
- refData->m_selectedInto = NULL;
char *data;
if ( depth == 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!
- 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;
HBITMAP hbmp = ::CreateBitmap(width, height, 1, depth, data);
if ( !hbmp )
{
- wxLogLastError("CreateBitmap");
+ wxLogLastError(wxT("CreateBitmap"));
}
if ( data != bits )
}
SetHBITMAP((WXHBITMAP)hbmp);
-}
-
-// GRG, Dic/99
-wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
-{
- wxCHECK_MSG( Ok() &&
- (rect.x >= 0) && (rect.y >= 0) &&
- (rect.x+rect.width <= GetWidth()) &&
- (rect.y+rect.height <= GetHeight()),
- wxNullBitmap, wxT("Invalid bitmap or bitmap region") );
-
- wxBitmap ret( rect.width, rect.height, GetDepth() );
- wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
-
- // 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);
-
- // copy mask if there is one
- 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);
-
- wxMask *mask = new wxMask((WXHBITMAP) hbmpMask);
- ret.SetMask(mask);
- }
-
- SelectObject(dcDst, NULL);
- SelectObject(dcSrc, NULL);
- DeleteDC(dcDst);
- DeleteDC(dcSrc);
-
- return ret;
+#endif
}
// Create from XPM data
-wxBitmap::wxBitmap(char **data, wxControl *WXUNUSED(anItem))
+bool wxBitmap::CreateFromXpm(const char **data)
{
+#if wxUSE_IMAGE && wxUSE_XPM
Init();
- (void)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_IMAGE
+
+// ----------------------------------------------------------------------------
+// wxImage to/from conversions for Microwin
+// ----------------------------------------------------------------------------
+
+// Microwin versions are so different from normal ones that it really doesn't
+// make sense to use #ifdefs inside the function bodies
+#ifdef __WXMICROWIN__
+
+bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
+{
+ // 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);
- HBITMAP hbmp;
+ // created an mono-bitmap for the possible mask
+ bool hasMask = image.HasMask();
- if ( d > 0 )
+ if ( hasMask )
{
- hbmp = ::CreateBitmap(w, h, 1, d, NULL);
- if ( !hbmp )
+#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)
{
- wxLogLastError("CreateBitmap");
+ hasMask = FALSE;
+ }
+ else
+ {
+ hScreenDC = ::GetDC(NULL);
+ hMaskDC = ::CreateCompatibleDC(hScreenDC);
+ ::ReleaseDC(NULL, hScreenDC);
+
+ hOldMaskBitmap = ::SelectObject( hMaskDC, hMaskBitmap);
}
+#else
+ hasMask = FALSE;
+#endif
}
- else
+
+ int i, j;
+ for (i = 0; i < image.GetWidth(); i++)
{
- ScreenHDC dc;
- hbmp = ::CreateCompatibleBitmap(dc, w, h);
- if ( !hbmp )
+ for (j = 0; j < image.GetHeight(); j++)
{
- wxLogLastError("CreateCompatibleBitmap");
+ 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));
+ }
}
+ }
- GetBitmapData()->m_depth = wxDisplayDepth();
+ ::SelectObject(hMemDC, hOldBitmap);
+ ::DeleteDC(hMemDC);
+ if (hasMask)
+ {
+ ::SelectObject(hMaskDC, hOldMaskBitmap);
+ ::DeleteDC(hMaskDC);
+
+ ((wxBitmapRefData*)m_refData)->SetMask(hMaskBitmap);
}
- SetHBITMAP((WXHBITMAP)hbmp);
+ 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
- GetBitmapData()->m_ok = hbmp != 0;
+ // check the wxBitmap object
+ GetBitmapData()->SetOk();
#endif // WXWIN_COMPATIBILITY_2
- return Ok();
+ return TRUE;
}
+wxImage wxBitmap::ConvertToImage() const
+{
+ // 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;
+}
+
+#endif // __WXMICROWIN__
+
+// ----------------------------------------------------------------------------
+// wxImage to/from conversions
+// ----------------------------------------------------------------------------
+
+bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
+{
+ wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") );
+
+ UnRef();
+
+ // first convert the image to DIB
+ const int h = image.GetHeight();
+ const int w = image.GetWidth();
+
+ wxDIB dib(image);
+ if ( !dib.IsOk() )
+ return FALSE;
+
+
+ // store the bitmap parameters
+ wxBitmapRefData *refData = new wxBitmapRefData;
+ refData->m_width = w;
+ refData->m_height = h;
+ refData->m_depth = dib.GetDepth();
+ refData->m_hasAlpha = image.HasAlpha();
+
+ m_refData = refData;
+
+
+ // next either store DIB as is or create a DDB from it
+ HBITMAP hbitmap;
+
+ // TODO: if we're ready to use DIB as is, we can just do this:
+ // if ( ... )
+ // hbitmap = dib.Detach();
+ // else
+ {
+ // create and set the device-dependent bitmap
+ //
+ // VZ: why don't we just use SetDIBits() instead? because of the
+ // palette or is there some other reason?
+ hbitmap = ::CreateCompatibleBitmap(ScreenHDC(), w, h);
+ if ( !hbitmap )
+ {
+ wxLogLastError(_T("CreateCompatibleBitmap()"));
+
+ return FALSE;
+ }
+
+ MemoryHDC hdcMem;
+ SelectInHDC select(hdcMem, hbitmap);
+ if ( !select )
+ {
+ wxLogLastError(_T("SelectObjct(hBitmap)"));
+ }
+
+#if wxUSE_PALETTE
+ const wxPalette& palette = image.GetPalette();
+
+ HPALETTE hOldPalette;
+ if ( palette.Ok() )
+ {
+ SetPalette(palette);
+
+ hOldPalette = ::SelectPalette
+ (
+ hdcMem,
+ GetHpaletteOf(palette),
+ FALSE // ignored for hdcMem
+ );
+
+ if ( !hOldPalette )
+ {
+ wxLogLastError(_T("SelectPalette()"));
+ }
+
+ if ( ::RealizePalette(hdcMem) == GDI_ERROR )
+ {
+ wxLogLastError(_T("RealizePalette()"));
+ }
+ }
+ else // no valid palette
+ {
+ hOldPalette = 0;
+ }
+#endif // wxUSE_PALETTE
+
+ DIBSECTION ds;
+ if ( !::GetObject(dib.GetHandle(), sizeof(ds), &ds) )
+ {
+ wxLogLastError(_T("GetObject(hDIB)"));
+ }
+
+ if ( ::StretchDIBits(hdcMem,
+ 0, 0, w, h,
+ 0, 0, w, h,
+ dib.GetData(),
+ (BITMAPINFO *)&ds.dsBmih,
+ DIB_RGB_COLORS,
+ SRCCOPY) == GDI_ERROR )
+ {
+ wxLogLastError(_T("StretchDIBits()"));
+
+ return FALSE;
+ }
+
+#if wxUSE_PALETTE
+ if ( hOldPalette )
+ {
+ ::SelectPalette(hdcMem, hOldPalette, FALSE);
+ }
+#endif // wxUSE_PALETTE
+ }
+
+ // validate this object
+ SetHBITMAP((WXHBITMAP)hbitmap);
+
+#if WXWIN_COMPATIBILITY_2
+ m_refData->m_ok = TRUE;
+#endif // WXWIN_COMPATIBILITY_2
+
+ // finally also set the mask if we have one
+ if ( image.HasMask() )
+ {
+ SetMask(new wxMask(*this, wxColour(image.GetMaskRed(),
+ image.GetMaskGreen(),
+ image.GetMaskBlue())));
+ }
+
+ return TRUE;
+}
+
+wxImage wxBitmap::ConvertToImage() const
+{
+ 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 // wxUSE_IMAGE
+
+// ----------------------------------------------------------------------------
+// loading and saving bitmaps
+// ----------------------------------------------------------------------------
+
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;
+ wxImage image = ConvertToImage();
+ if ( image.Ok() )
+ {
+ return image.SaveFile(filename, type);
+ }
+ }
+#endif // wxUSE_IMAGE
+
+ return FALSE;
+}
+
+// ----------------------------------------------------------------------------
+// sub bitmap extraction
+// ----------------------------------------------------------------------------
+
+wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
+{
+ wxCHECK_MSG( Ok() &&
+ (rect.x >= 0) && (rect.y >= 0) &&
+ (rect.x+rect.width <= GetWidth()) &&
+ (rect.y+rect.height <= GetHeight()),
+ wxNullBitmap, wxT("Invalid bitmap or bitmap region") );
+
+ wxBitmap ret( rect.width, rect.height );
+ wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
+
+#ifndef __WXMICROWIN__
+ // TODO: copy alpha channel data if any
+
+ // copy bitmap data
+ MemoryHDC dcSrc,
+ dcDst;
+
+ {
+ SelectInHDC selectSrc(dcSrc, GetHbitmap()),
+ selectDst(dcDst, GetHbitmapOf(ret));
- return image.SaveFile( filename, type );
+ if ( !selectSrc || !selectDst )
+ {
+ wxLogLastError(_T("SelectObjct(hBitmap)"));
+ }
+
+ 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() )
+ {
+ HBITMAP hbmpMask = ::CreateBitmap(rect.width, rect.height, 1, 1, 0);
+
+ 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);
+ }
+#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)
+#ifdef __WXDEBUG__
+
+wxDC *wxBitmap::GetSelectedInto() const
{
- EnsureHasData();
+ return GetBitmapData() ? GetBitmapData()->m_selectedInto : (wxDC *) NULL;
+}
- GetBitmapData()->m_ok = isOk;
+#endif
+
+#if WXWIN_COMPATIBILITY_2_4
+
+int wxBitmap::GetQuality() const
+{
+ return 0;
}
-#endif // WXWIN_COMPATIBILITY_2
+
+#endif // WXWIN_COMPATIBILITY_2_4
+
+bool wxBitmap::HasAlpha() const
+{
+ return GetBitmapData() && GetBitmapData()->m_hasAlpha;
+}
+
+// ----------------------------------------------------------------------------
+// wxBitmap setters
+// ----------------------------------------------------------------------------
+
+#ifdef __WXDEBUG__
+
+void wxBitmap::SetSelectedInto(wxDC *dc)
+{
+ if ( GetBitmapData() )
+ GetBitmapData()->m_selectedInto = dc;
+}
+
+#endif
+
+#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(this->GetWidth(), this->GetHeight(), dc.GetDepth());
+ 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") );
+
if ( m_maskBitmap )
{
::DeleteObject((HBITMAP) m_maskBitmap);
m_maskBitmap = 0;
}
- if (!bitmap.Ok() || bitmap.GetDepth() != 1)
- {
- return FALSE;
- }
+
m_maskBitmap = (WXHBITMAP) CreateBitmap(
bitmap.GetWidth(),
bitmap.GetHeight(),
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 )
{
::DeleteObject((HBITMAP) m_maskBitmap);
m_maskBitmap = 0;
}
- if (!bitmap.Ok())
+
+ int width = bitmap.GetWidth(),
+ height = bitmap.GetHeight();
+
+ // scan the bitmap for the transparent colour and set the corresponding
+ // pixels in the mask to BLACK and the rest to WHITE
+ COLORREF maskColour = wxColourToPalRGB(colour);
+ m_maskBitmap = (WXHBITMAP)::CreateBitmap(width, height, 1, 1, 0);
+
+ HDC srcDC = ::CreateCompatibleDC(NULL);
+ HDC destDC = ::CreateCompatibleDC(NULL);
+ if ( !srcDC || !destDC )
{
- return FALSE;
+ wxLogLastError(wxT("CreateCompatibleDC"));
}
- // scan the bitmap for the transparent colour and set
- // the corresponding pixels in the mask to BLACK and
- // the rest to WHITE
- COLORREF maskColour = RGB(colour.Red(), colour.Green(), colour.Blue());
- m_maskBitmap = (WXHBITMAP) ::CreateBitmap(
- bitmap.GetWidth(),
- bitmap.GetHeight(),
- 1, 1, 0
- );
- HDC srcDC = ::CreateCompatibleDC(0);
- ::SelectObject(srcDC, (HBITMAP) bitmap.GetHBITMAP());
- HDC destDC = ::CreateCompatibleDC(0);
- ::SelectObject(destDC, (HBITMAP) m_maskBitmap);
-
- // this is not very efficient, but I can't think
- // of a better way of doing it
- for (int w = 0; w < bitmap.GetWidth(); w++)
- {
- for (int h = 0; h < bitmap.GetHeight(); h++)
- {
- COLORREF col = GetPixel(srcDC, w, h);
- if (col == maskColour)
- {
- ::SetPixel(destDC, w, h, RGB(0, 0, 0));
- }
- else
- {
- ::SetPixel(destDC, w, h, RGB(255, 255, 255));
- }
- }
+ 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 )
+ {
+ wxLogLastError(wxT("SelectObject"));
+
+ ok = FALSE;
+ }
+
+ HGDIOBJ hbmpDstOld = ::SelectObject(destDC, (HBITMAP)m_maskBitmap);
+ if ( !hbmpDstOld )
+ {
+ wxLogLastError(wxT("SelectObject"));
+
+ ok = FALSE;
+ }
+
+ if ( ok )
+ {
+ // 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, 0);
+
+ ::SelectObject(srcDC, hbmpSrcOld);
::DeleteDC(srcDC);
- ::SelectObject(destDC, 0);
+ ::SelectObject(destDC, hbmpDstOld);
::DeleteDC(destDC);
- return TRUE;
+
+ 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
+ if ( !w || !h )
+ {
+ BITMAP bm;
+ ::GetObject(hbmpMask, sizeof(BITMAP), (LPVOID)&bm);
+ w = bm.bmWidth;
+ h = bm.bmHeight;
+ }
+
+ HDC hdcSrc = ::CreateCompatibleDC(NULL);
+ HDC hdcDst = ::CreateCompatibleDC(NULL);
+ if ( !hdcSrc || !hdcDst )
+ {
+ wxLogLastError(wxT("CreateCompatibleDC"));
+ }
+
+ HBITMAP hbmpInvMask = ::CreateBitmap(w, h, 1, 1, 0);
+ if ( !hbmpInvMask )
+ {
+ wxLogLastError(wxT("CreateBitmap"));
+ }
+
+ ::SelectObject(hdcSrc, hbmpMask);
+ ::SelectObject(hdcDst, hbmpInvMask);
+ if ( !::BitBlt(hdcDst, 0, 0, w, h,
+ hdcSrc, 0, 0,
+ NOTSRCCOPY) )
+ {
+ wxLogLastError(wxT("BitBlt"));
+ }
+
+ ::DeleteDC(hdcSrc);
+ ::DeleteDC(hdcDst);
+
+ return hbmpInvMask;
+#else
+ return 0;
+#endif
+}
projects / wxWidgets.git / blobdiff