X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3c1a88d8b8518eda184be388723f46cfd54c3ac6..12335fa6aa8db0d0044ff4dbfa9ea056b57b0a66:/src/msw/bitmap.cpp diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp index 3cf541d3c7..fceabb32c4 100644 --- a/src/msw/bitmap.cpp +++ b/src/msw/bitmap.cpp @@ -1,4 +1,4 @@ -///////////////////////////////////////////////////////////////////////////// +//////////////////////////////////////////////////////////////////////////// // Name: bitmap.cpp // Purpose: wxBitmap // Author: Julian Smart @@ -40,11 +40,17 @@ #include "wx/icon.h" #endif +//#include "device.h" + #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 @@ -75,6 +81,9 @@ wxBitmapRefData::wxBitmapRefData() m_numColors = 0; m_bitmapMask = NULL; m_hBitmap = (WXHBITMAP) NULL; +#if wxUSE_DIB_FOR_BITMAP + m_hFileMap = 0; +#endif } void wxBitmapRefData::Free() @@ -84,12 +93,23 @@ void wxBitmapRefData::Free() if ( m_hBitmap) { + // printf("About to delete bitmap %d\n", (int) (HBITMAP) m_hBitmap); +#if 1 if ( !::DeleteObject((HBITMAP)m_hBitmap) ) { - wxLogLastError("DeleteObject(hbitmap)"); + wxLogLastError(wxT("DeleteObject(hbitmap)")); } +#endif } +#if wxUSE_DIB_FOR_BITMAP + if(m_hFileMap) + { + ::CloseHandle((void*)m_hFileMap); + m_hFileMap = 0; + } +#endif + delete m_bitmapMask; m_bitmapMask = NULL; } @@ -103,21 +123,20 @@ void wxBitmap::Init() { // m_refData = NULL; done in the base class ctor - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); } #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; } @@ -139,11 +158,18 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) refData->m_bitmapMask = new wxMask((WXHBITMAP) 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 @@ -210,14 +236,13 @@ bool wxBitmap::CopyFromIcon(const wxIcon& icon) 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; @@ -233,9 +258,9 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) // 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; @@ -269,7 +294,7 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) HBITMAP hbmp = ::CreateBitmap(width, height, 1, depth, data); if ( !hbmp ) { - wxLogLastError("CreateBitmap"); + wxLogLastError(wxT("CreateBitmap")); } if ( data != bits ) @@ -278,14 +303,26 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) } 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) @@ -302,7 +339,7 @@ wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth) (void)Create(data, type, width, height, depth); } -wxBitmap::wxBitmap(const wxString& filename, long type) +wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type) { Init(); @@ -315,41 +352,715 @@ bool wxBitmap::Create(int w, int h, int d) 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 = + (WXHANDLE)::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, + (HANDLE)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. - HBITMAP hbmp; + HDC hScreenDC = ::GetDC(NULL); + int screenDepth = ::GetDeviceCaps(hScreenDC, BITSPIXEL); - if ( d > 0 ) + 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); + + hOldMaskBitmap = ::SelectObject( hMaskDC, hMaskBitmap); + } +#else + hasMask = FALSE; +#endif + } + + 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("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)->m_bitmapMask = new wxMask((WXHBITMAP) 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 1 && n == numDIB-1 && hRemain > 0 ) { - wxLogLastError("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; jbmiHeader), 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 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; jSetMaskBitmap( (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; iGetMaskBitmap() ) + { + 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; iLoadFile(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) @@ -382,8 +1097,7 @@ 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; } @@ -393,7 +1107,9 @@ bool wxBitmap::Create(void *data, long type, int width, int height, int depth) 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); @@ -401,15 +1117,19 @@ bool wxBitmap::SaveFile(const wxString& filename, int type, const wxPalette *pal { 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; } // ---------------------------------------------------------------------------- @@ -427,30 +1147,39 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const 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; } @@ -475,6 +1204,8 @@ void wxBitmap::SetOk(bool isOk) } #endif // WXWIN_COMPATIBILITY_2 +#if wxUSE_PALETTE + void wxBitmap::SetPalette(const wxPalette& palette) { EnsureHasData(); @@ -482,6 +1213,8 @@ void wxBitmap::SetPalette(const wxPalette& palette) GetBitmapData()->m_bitmapPalette = palette; } +#endif // wxUSE_PALETTE + void wxBitmap::SetMask(wxMask *mask) { EnsureHasData(); @@ -495,12 +1228,16 @@ void wxBitmap::SetMask(wxMask *mask) // Contributed by Frederic Villeneuve 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()); @@ -517,6 +1254,9 @@ wxBitmap wxBitmap::GetBitmapForDC(wxDC& dc) const 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 @@ -539,6 +1279,7 @@ wxBitmap wxBitmap::GetBitmapForDC(wxDC& dc) const wxFreeDIB(lpDib); return tmpBitmap; +#endif } // ---------------------------------------------------------------------------- @@ -582,15 +1323,16 @@ wxMask::~wxMask() // 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(), @@ -606,6 +1348,9 @@ bool wxMask::Create(const wxBitmap& bitmap) SelectObject(destDC, 0); DeleteDC(destDC); return TRUE; +#else + return FALSE; +#endif } // Create a mask from a bitmap and a palette index indicating @@ -617,6 +1362,8 @@ bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) ::DeleteObject((HBITMAP) m_maskBitmap); m_maskBitmap = 0; } + +#if wxUSE_PALETTE if (bitmap.Ok() && bitmap.GetPalette()->Ok()) { unsigned char red, green, blue; @@ -626,6 +1373,8 @@ bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) return Create(bitmap, transparentColour); } } +#endif // wxUSE_PALETTE + return FALSE; } @@ -633,6 +1382,7 @@ bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) // 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 ) @@ -646,62 +1396,56 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) // 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); HDC destDC = ::CreateCompatibleDC(NULL); if ( !srcDC || !destDC ) { - wxLogLastError("CreateCompatibleDC"); + wxLogLastError(wxT("CreateCompatibleDC")); } - if ( !::SelectObject(srcDC, GetHbitmapOf(bitmap)) ) - { - wxLogLastError("SelectObject"); - } - if ( !::SelectObject(destDC, (HBITMAP)m_maskBitmap) ) + 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("SelectObject"); + wxLogLastError(wxT("SelectObject")); + + ok = FALSE; } - // this is not very efficient, but I can't think of a better way of doing - // it - for ( int w = 0; w < width; w++ ) + HGDIOBJ hbmpDstOld = ::SelectObject(destDC, (HBITMAP)m_maskBitmap); + if ( !hbmpDstOld ) { - for ( int h = 0; h < height; h++ ) - { - COLORREF col = GetPixel(srcDC, w, h); - if ( col == CLR_INVALID ) - { - wxLogLastError("GetPixel"); + wxLogLastError(wxT("SelectObject")); - // doesn't make sense to continue - ::SelectObject(srcDC, 0); - ::DeleteDC(srcDC); - ::SelectObject(destDC, 0); - ::DeleteDC(destDC); - - return FALSE; - } + ok = FALSE; + } - if ( col == maskColour ) - { - ::SetPixel(destDC, w, h, RGB(0, 0, 0)); - } - else - { - ::SetPixel(destDC, w, h, RGB(255, 255, 255)); - } - } + 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__ } // ---------------------------------------------------------------------------- @@ -715,7 +1459,7 @@ bool wxBitmapHandler::Create(wxGDIImage *image, { 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, @@ -768,6 +1512,7 @@ bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), // DIB functions // ---------------------------------------------------------------------------- +#ifndef __WXMICROWIN__ bool wxCreateDIB(long xSize, long ySize, long bitsPerPixel, HPALETTE hPal, LPBITMAPINFO* lpDIBHeader) { @@ -815,6 +1560,7 @@ void wxFreeDIB(LPBITMAPINFO lpDIBHeader) { free(lpDIBHeader); } +#endif // ---------------------------------------------------------------------------- // other helper functions @@ -822,6 +1568,7 @@ void wxFreeDIB(LPBITMAPINFO lpDIBHeader) 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 @@ -837,13 +1584,13 @@ extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h) HDC hdcDst = ::CreateCompatibleDC(NULL); if ( !hdcSrc || !hdcDst ) { - wxLogLastError("CreateCompatibleDC"); + wxLogLastError(wxT("CreateCompatibleDC")); } HBITMAP hbmpInvMask = ::CreateBitmap(w, h, 1, 1, 0); if ( !hbmpInvMask ) { - wxLogLastError("CreateBitmap"); + wxLogLastError(wxT("CreateBitmap")); } ::SelectObject(hdcSrc, hbmpMask); @@ -852,11 +1599,14 @@ extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h) hdcSrc, 0, 0, NOTSRCCOPY) ) { - wxLogLastError("BitBlt"); + wxLogLastError(wxT("BitBlt")); } ::DeleteDC(hdcSrc); ::DeleteDC(hdcDst); return hbmpInvMask; +#else + return 0; +#endif }