X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/fd3f686c274a264e89ea97505350a82c1134f307..cee14ca0c5e9d4d525172f44bab921323becb962:/src/msw/bitmap.cpp?ds=sidebyside diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp index 67d698f32b..99e6867101 100644 --- a/src/msw/bitmap.cpp +++ b/src/msw/bitmap.cpp @@ -9,378 +9,1087 @@ // Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + #ifdef __GNUG__ -#pragma implementation "bitmap.h" + #pragma implementation "bitmap.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP -#include -#include "wx/setup.h" -#include "wx/list.h" -#include "wx/utils.h" -#include "wx/app.h" -#include "wx/palette.h" -#include "wx/bitmap.h" -#include "wx/icon.h" + #include + + #include "wx/list.h" + #include "wx/utils.h" + #include "wx/app.h" + #include "wx/palette.h" + #include "wx/dcmemory.h" + #include "wx/bitmap.h" + #include "wx/icon.h" #endif +//#include "device.h" + #include "wx/msw/private.h" #include "wx/log.h" -#include "assert.h" - -#if wxUSE_XPM_IN_MSW -#define FOR_MSW 1 -#include "../../contrib/wxxpm/libxpm.34b/lib/xpm34.h" +#if !defined(__WXMICROWIN__) +#include "wx/msw/dib.h" #endif -#include "wx/msw/dib.h" +#include "wx/image.h" +#include "wx/xpmdecod.h" + +// missing from mingw32 header +#ifndef CLR_INVALID + #define CLR_INVALID ((COLORREF)-1) +#endif // no CLR_INVALID + +// ---------------------------------------------------------------------------- +// macros +// ---------------------------------------------------------------------------- -#if !USE_SHARED_LIBRARIES IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject) IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject) -#endif -wxBitmapRefData::wxBitmapRefData(void) -{ - m_ok = FALSE; - m_width = 0; - m_height = 0; - m_depth = 0; - m_quality = 0; - m_hBitmap = 0 ; - m_selectedInto = NULL; - m_numColors = 0; - m_bitmapMask = NULL; -} - -wxBitmapRefData::~wxBitmapRefData(void) -{ - if (m_selectedInto) - { - char buf[200]; - sprintf(buf, "Bitmap was deleted without selecting out of wxMemoryDC %X.", (unsigned int) m_selectedInto); - wxFatalError(buf); - } - if (m_hBitmap) - { - DeleteObject((HBITMAP) m_hBitmap); - } - m_hBitmap = 0 ; - - if (m_bitmapMask) - delete m_bitmapMask; - m_bitmapMask = NULL; -} +IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) -wxList wxBitmap::sm_handlers; +// ============================================================================ +// implementation +// ============================================================================ -wxBitmap::wxBitmap(void) -{ - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); -} +// ---------------------------------------------------------------------------- +// wxBitmapRefData +// ---------------------------------------------------------------------------- -wxBitmap::~wxBitmap(void) +wxBitmapRefData::wxBitmapRefData() { - if (wxTheBitmapList) - wxTheBitmapList->DeleteObject(this); + m_quality = 0; + m_selectedInto = NULL; + m_numColors = 0; + m_bitmapMask = NULL; + m_hBitmap = (WXHBITMAP) NULL; } -bool wxBitmap::FreeResource(bool force) +void wxBitmapRefData::Free() { - if ( !M_BITMAPDATA ) - return FALSE; + wxASSERT_MSG( !m_selectedInto, + wxT("deleting bitmap still selected into wxMemoryDC") ); + + if ( m_hBitmap) + { + // printf("About to delete bitmap %d\n", (int) (HBITMAP) m_hBitmap); +#if 1 + if ( !::DeleteObject((HBITMAP)m_hBitmap) ) + { + wxLogLastError(wxT("DeleteObject(hbitmap)")); + } +#endif + } - if (M_BITMAPDATA->m_selectedInto) - { - char buf[200]; - sprintf(buf, "Bitmap %X was deleted without selecting out of wxMemoryDC %X.", (unsigned int) this, (unsigned int) M_BITMAPDATA->m_selectedInto); - wxFatalError(buf); - } - if (M_BITMAPDATA->m_hBitmap) - { - DeleteObject((HBITMAP) M_BITMAPDATA->m_hBitmap); - } - M_BITMAPDATA->m_hBitmap = 0 ; + delete m_bitmapMask; + m_bitmapMask = NULL; +} -/* - if (M_BITMAPDATA->m_bitmapPalette) - delete M_BITMAPDATA->m_bitmapPalette; +// ---------------------------------------------------------------------------- +// wxBitmap creation +// ---------------------------------------------------------------------------- - M_BITMAPDATA->m_bitmapPalette = NULL ; -*/ +// this function should be called from all wxBitmap ctors +void wxBitmap::Init() +{ + // m_refData = NULL; done in the base class ctor - return TRUE; } +#ifdef __WIN32__ -wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits) +bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) { - m_refData = new wxBitmapRefData; +#ifndef __WXMICROWIN__ + // it may be either HICON or HCURSOR + HICON hicon = (HICON)icon.GetHandle(); - M_BITMAPDATA->m_width = the_width ; - M_BITMAPDATA->m_height = the_height ; - M_BITMAPDATA->m_depth = no_bits ; - M_BITMAPDATA->m_numColors = 0; + ICONINFO iconInfo; + if ( !::GetIconInfo(hicon, &iconInfo) ) + { + wxLogLastError(wxT("GetIconInfo")); - M_BITMAPDATA->m_hBitmap = (WXHBITMAP) CreateBitmap(the_width, the_height, 1, no_bits, bits); + return FALSE; + } - if (M_BITMAPDATA->m_hBitmap) - M_BITMAPDATA->m_ok = TRUE; - else - M_BITMAPDATA->m_ok = FALSE; + wxBitmapRefData *refData = new wxBitmapRefData; + m_refData = refData; - M_BITMAPDATA->m_selectedInto = NULL; + int w = icon.GetWidth(), + h = icon.GetHeight(); - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); -} + refData->m_width = w; + refData->m_height = h; + refData->m_depth = wxDisplayDepth(); -wxBitmap::wxBitmap(int w, int h, int d) -{ - (void)Create(w, h, d); + refData->m_hBitmap = (WXHBITMAP)iconInfo.hbmColor; - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); -} + // the mask returned by GetIconInfo() is inversed compared to the usual + // wxWin convention + refData->m_bitmapMask = new wxMask((WXHBITMAP) + wxInvertMask(iconInfo.hbmMask, w, h)); -wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth) -{ - (void) Create(data, type, width, height, depth); - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); -} + // delete the old one now as we don't need it any more + ::DeleteObject(iconInfo.hbmMask); -wxBitmap::wxBitmap(const wxString& filename, long type) -{ - LoadFile(filename, (int)type); +#if WXWIN_COMPATIBILITY_2 + refData->m_ok = TRUE; +#endif // WXWIN_COMPATIBILITY_2 - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); + return TRUE; +#else + return FALSE; +#endif } -#if wxUSE_XPM_IN_MSW -// Create from data -wxBitmap::wxBitmap(const char **data, wxItem *WXUNUSED(anItem)) -{ - (void) Create((void *)data, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0); -} -#endif +#endif // Win32 -bool wxBitmap::Create(int w, int h, int d) +bool wxBitmap::CopyFromCursor(const wxCursor& cursor) { - UnRef(); + UnRef(); - m_refData = new wxBitmapRefData; + if ( !cursor.Ok() ) + return FALSE; - M_BITMAPDATA->m_width = w; - M_BITMAPDATA->m_height = h; - M_BITMAPDATA->m_depth = d; +#ifdef __WIN16__ + wxFAIL_MSG( _T("don't know how to convert cursor to bitmap") ); - if (d > 0) - { - M_BITMAPDATA->m_hBitmap = (WXHBITMAP) CreateBitmap(w, h, 1, d, NULL); - } - else - { - HDC dc = GetDC(NULL); - M_BITMAPDATA->m_hBitmap = (WXHBITMAP) CreateCompatibleBitmap(dc, w, h); - ReleaseDC(NULL, dc); - M_BITMAPDATA->m_depth = wxDisplayDepth(); - } - if (M_BITMAPDATA->m_hBitmap) - M_BITMAPDATA->m_ok = TRUE; - else - M_BITMAPDATA->m_ok = FALSE; - return M_BITMAPDATA->m_ok; + return FALSE; +#else + return CopyFromIconOrCursor(cursor); +#endif // Win16 } -bool wxBitmap::LoadFile(const wxString& filename, long type) +bool wxBitmap::CopyFromIcon(const wxIcon& icon) { - UnRef(); + UnRef(); + + if ( !icon.Ok() ) + return FALSE; - m_refData = new wxBitmapRefData; + // GetIconInfo() doesn't exist under Win16 and I don't know any other way + // to create a bitmap from icon there - but using this way we won't have + // the mask (FIXME) +#ifdef __WIN16__ + int width = icon.GetWidth(), + height = icon.GetHeight(); - wxBitmapHandler *handler = FindHandler(type); + // copy the icon to the bitmap + ScreenHDC hdcScreen; + HDC hdc = ::CreateCompatibleDC(hdcScreen); + HBITMAP hbitmap = ::CreateCompatibleBitmap(hdcScreen, width, height); + HBITMAP hbmpOld = (HBITMAP)::SelectObject(hdc, hbitmap); - if ( handler == NULL ) { - wxLogWarning("no bitmap handler for type %d defined.", type); + ::DrawIcon(hdc, 0, 0, GetHiconOf(icon)); - return FALSE; - } + ::SelectObject(hdc, hbmpOld); + ::DeleteDC(hdc); + + wxBitmapRefData *refData = new wxBitmapRefData; + m_refData = refData; - return handler->LoadFile(this, filename, type, -1, -1); + refData->m_width = width; + refData->m_height = height; + refData->m_depth = wxDisplayDepth(); + + refData->m_hBitmap = (WXHBITMAP)hbitmap; + +#if WXWIN_COMPATIBILITY_2 + refData->m_ok = TRUE; +#endif // WXWIN_COMPATIBILITY_2 + + return TRUE; +#else // Win32 + return CopyFromIconOrCursor(icon); +#endif // Win16/Win32 } -bool wxBitmap::Create(void *data, long type, int width, int height, int depth) +wxBitmap::~wxBitmap() { - UnRef(); +} - m_refData = new wxBitmapRefData; +wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) +{ + Init(); - wxBitmapHandler *handler = FindHandler(type); +#ifndef __WXMICROWIN__ + wxBitmapRefData *refData = new wxBitmapRefData; + m_refData = refData; - if ( handler == NULL ) { - wxLogWarning("no bitmap handler for type %d defined.", type); + refData->m_width = width; + refData->m_height = height; + refData->m_depth = depth; + refData->m_numColors = 0; + refData->m_selectedInto = NULL; - return FALSE; - } + 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! + 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; + + for ( int rows = 0; rows < height; rows++ ) + { + for ( size_t cols = 0; cols < bytesPerLine; cols++ ) + { + unsigned char val = *src++; + unsigned char reversed = 0; + + for ( int bits = 0; bits < 8; bits++) + { + reversed <<= 1; + reversed |= (val & 0x01); + val >>= 1; + } + *dst++ = reversed; + } + + if ( padding ) + *dst++ = 0; + } + } + else + { + // bits should already be in Windows standard format + data = (char *)bits; // const_cast is harmless + } + + HBITMAP hbmp = ::CreateBitmap(width, height, 1, depth, data); + if ( !hbmp ) + { + wxLogLastError(wxT("CreateBitmap")); + } + + if ( data != bits ) + { + free(data); + } - return handler->Create(this, data, type, width, height, depth); + SetHBITMAP((WXHBITMAP)hbmp); +#endif } -bool wxBitmap::SaveFile(const wxString& filename, int type, const wxPalette *palette) +// Create from XPM data +bool wxBitmap::CreateFromXpm(const char **data) { - wxBitmapHandler *handler = FindHandler(type); +#if wxUSE_IMAGE && wxUSE_XPM + Init(); - if ( handler == NULL ) { - wxLogWarning("no bitmap handler for type %d defined.", type); + wxCHECK_MSG( data != NULL, FALSE, wxT("invalid bitmap data") ) - return FALSE; - } + wxXPMDecoder decoder; + wxImage img = decoder.ReadData(data); + wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") ) - return handler->SaveFile(this, filename, type, palette); + *this = wxBitmap(img); + return TRUE; +#else + return FALSE; +#endif } -void wxBitmap::SetWidth(int w) +wxBitmap::wxBitmap(int w, int h, int d) { - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + Init(); - M_BITMAPDATA->m_width = w; + (void)Create(w, h, d); } -void wxBitmap::SetHeight(int h) +wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth) { - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + Init(); - M_BITMAPDATA->m_height = h; + (void)Create(data, type, width, height, depth); } -void wxBitmap::SetDepth(int d) +wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type) { - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + Init(); - M_BITMAPDATA->m_depth = d; + LoadFile(filename, (int)type); } -void wxBitmap::SetQuality(int q) +bool wxBitmap::Create(int w, int h, int d) { - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + UnRef(); + + m_refData = new wxBitmapRefData; + + 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 + { + ScreenHDC dc; + hbmp = ::CreateCompatibleBitmap(dc, w, h); + if ( !hbmp ) + { + wxLogLastError(wxT("CreateCompatibleBitmap")); + } + + GetBitmapData()->m_depth = wxDisplayDepth(); + } + + SetHBITMAP((WXHBITMAP)hbmp); - M_BITMAPDATA->m_quality = q; +#if WXWIN_COMPATIBILITY_2 + GetBitmapData()->m_ok = hbmp != 0; +#endif // WXWIN_COMPATIBILITY_2 + return Ok(); } -void wxBitmap::SetOk(bool isOk) +// ---------------------------------------------------------------------------- +// wxImage to/from conversions +// ---------------------------------------------------------------------------- + +#if wxUSE_IMAGE + +bool wxBitmap::CreateFromImage( const wxImage& image, int depth ) { - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; +#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. - M_BITMAPDATA->m_ok = isOk; + HDC hScreenDC = ::GetDC(NULL); + // printf("Screen planes = %d, bpp = %d\n", hScreenDC->psd->planes, hScreenDC->psd->bpp); + 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); + + hOldMaskBitmap = ::SelectObject( hMaskDC, hMaskBitmap); + } +#else + hasMask = FALSE; +#endif + } + + int i, j; + for (i = 0; i < image.GetWidth(); i++) + { + for (j = 0; j < image.GetHeight(); j++) + { + 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 + wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") ) + + m_refData = new wxBitmapRefData(); + + // 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 + { + 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 ) + { + // 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( 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 ); + +#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); + +#if WXWIN_COMPATIBILITY_2 + // check the wxBitmap object + GetBitmapData()->SetOk(); +#endif // WXWIN_COMPATIBILITY_2 + + return TRUE; +#endif } -void wxBitmap::SetPalette(const wxPalette& palette) +wxImage wxBitmap::ConvertToImage() const { - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; +#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 // __MICROWIN__ + + 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; + } - M_BITMAPDATA->m_bitmapPalette = palette ; + // 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; im_bitmapMask = mask ; + return handler->LoadFile(this, filename, type, -1, -1); + } +#if wxUSE_IMAGE + else + { + wxImage image; + if ( image.LoadFile( filename, type ) && image.Ok() ) + { + *this = image.ConvertToBitmap(); + + return TRUE; + } + } +#endif // wxUSE_IMAGE + + return FALSE; } -void wxBitmap::SetHBITMAP(WXHBITMAP bmp) +bool wxBitmap::Create(void *data, long type, int width, int height, int depth) { - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + UnRef(); + + wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler); + + if ( !handler ) + { + wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for type %d defined."), type); - M_BITMAPDATA->m_hBitmap = bmp; + return FALSE; + } + + m_refData = new wxBitmapRefData; + + return handler->Create(this, data, type, width, height, depth); } -void wxBitmap::AddHandler(wxBitmapHandler *handler) +bool wxBitmap::SaveFile(const wxString& filename, + int type, + const wxPalette *palette) { - sm_handlers.Append(handler); + wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler); + + if ( handler ) + { + 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 image.SaveFile(filename, type); + } + } +#endif // wxUSE_IMAGE + + return FALSE; } -void wxBitmap::InsertHandler(wxBitmapHandler *handler) +// ---------------------------------------------------------------------------- +// sub bitmap extraction +// ---------------------------------------------------------------------------- + +wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const { - sm_handlers.Insert(handler); + 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") ); + +#ifndef __WXMICROWIN__ + // copy bitmap data + 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() ) + { + 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; } -bool wxBitmap::RemoveHandler(const wxString& name) +// ---------------------------------------------------------------------------- +// wxBitmap accessors +// ---------------------------------------------------------------------------- + +void wxBitmap::SetQuality(int q) { - wxBitmapHandler *handler = FindHandler(name); - if ( handler ) - { - sm_handlers.DeleteObject(handler); - return TRUE; - } - else - return FALSE; + EnsureHasData(); + + GetBitmapData()->m_quality = q; } -wxBitmapHandler *wxBitmap::FindHandler(const wxString& name) +#if WXWIN_COMPATIBILITY_2 +void wxBitmap::SetOk(bool isOk) { - wxNode *node = sm_handlers.First(); - while ( node ) - { - wxBitmapHandler *handler = (wxBitmapHandler *)node->Data(); - if ( handler->GetName() == name ) - return handler; - node = node->Next(); - } - return NULL; + EnsureHasData(); + + GetBitmapData()->m_ok = isOk; } +#endif // WXWIN_COMPATIBILITY_2 + +#if wxUSE_PALETTE -wxBitmapHandler *wxBitmap::FindHandler(const wxString& extension, long bitmapType) +void wxBitmap::SetPalette(const wxPalette& palette) { - wxNode *node = sm_handlers.First(); - while ( node ) - { - wxBitmapHandler *handler = (wxBitmapHandler *)node->Data(); - if ( handler->GetExtension() == extension && - (bitmapType == -1 || handler->GetType() == bitmapType) ) - return handler; - node = node->Next(); - } - return NULL; + EnsureHasData(); + + GetBitmapData()->m_bitmapPalette = palette; } -wxBitmapHandler *wxBitmap::FindHandler(long bitmapType) +#endif // wxUSE_PALETTE + +void wxBitmap::SetMask(wxMask *mask) { - wxNode *node = sm_handlers.First(); - while ( node ) - { - wxBitmapHandler *handler = (wxBitmapHandler *)node->Data(); - if (handler->GetType() == bitmapType) - return handler; - node = node->Next(); - } - return NULL; -} + EnsureHasData(); -// New Create/FreeDIB functions since ones in dibutils.cpp are confusing -static long createDIB(long xSize, long ySize, long bitsPerPixel, - HPALETTE hPal, LPBITMAPINFO* lpDIBHeader); -static long freeDIB(LPBITMAPINFO lpDIBHeader); + GetBitmapData()->m_bitmapMask = mask; +} // Creates a bitmap that matches the device context, from // an arbitray bitmap. At present, the original bitmap must have an @@ -388,41 +1097,65 @@ static long freeDIB(LPBITMAPINFO lpDIBHeader); // Contributed by Frederic Villeneuve wxBitmap wxBitmap::GetBitmapForDC(wxDC& dc) const { +#ifdef __WXMICROWIN__ + return *this; +#else wxMemoryDC memDC; - wxBitmap tmpBitmap(this->GetWidth(), this->GetHeight(), dc.GetDepth()); - HPALETTE hPal = NULL; + wxBitmap tmpBitmap(GetWidth(), GetHeight(), dc.GetDepth()); + HPALETTE hPal = (HPALETTE) NULL; LPBITMAPINFO lpDib; - void *lpBits = NULL; - - wxASSERT( this->GetPalette() && this->GetPalette()->Ok() && (this->GetPalette()->GetHPALETTE() != 0) ); - - tmpBitmap.SetPalette(this->GetPalette()); - memDC.SelectObject(tmpBitmap); - memDC.SetPalette(this->GetPalette()); + void *lpBits = (void*) NULL; - hPal = (HPALETTE) this->GetPalette()->GetHPALETTE(); +#if wxUSE_PALETTE + if( GetPalette() && GetPalette()->Ok() ) + { + tmpBitmap.SetPalette(*GetPalette()); + memDC.SelectObject(tmpBitmap); + memDC.SetPalette(*GetPalette()); + hPal = (HPALETTE)GetPalette()->GetHPALETTE(); + } + else + { + hPal = (HPALETTE) ::GetStockObject(DEFAULT_PALETTE); + wxPalette palette; + palette.SetHPALETTE( (WXHPALETTE)hPal ); + tmpBitmap.SetPalette( palette ); + 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 - createDIB(this->GetWidth(), -this->GetHeight(), this->GetDepth(), hPal, &lpDib); + // set the height negative because in a DIB the order of the lines is + // reversed + if ( !wxCreateDIB(GetWidth(), -GetHeight(), GetDepth(), hPal, &lpDib) ) + { + return wxNullBitmap; + } lpBits = malloc(lpDib->bmiHeader.biSizeImage); - ::GetBitmapBits((HBITMAP)GetHBITMAP(), lpDib->bmiHeader.biSizeImage, lpBits); + ::GetBitmapBits(GetHbitmap(), lpDib->bmiHeader.biSizeImage, lpBits); - ::SetDIBitsToDevice((HDC) memDC.GetHDC(), 0, 0, this->GetWidth(), this->GetHeight(), - 0, 0, 0, this->GetHeight(), lpBits, lpDib, DIB_RGB_COLORS); + ::SetDIBitsToDevice(GetHdcOf(memDC), 0, 0, + GetWidth(), GetHeight(), + 0, 0, 0, GetHeight(), + lpBits, lpDib, DIB_RGB_COLORS); free(lpBits); - freeDIB(lpDib); - return (tmpBitmap); + wxFreeDIB(lpDib); + + return tmpBitmap; +#endif } -/* - * wxMask - */ +// ---------------------------------------------------------------------------- +// wxMask +// ---------------------------------------------------------------------------- -wxMask::wxMask(void) +wxMask::wxMask() { m_maskBitmap = 0; } @@ -432,7 +1165,7 @@ wxMask::wxMask(void) wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour) { m_maskBitmap = 0; - Create(bitmap, colour); + Create(bitmap, colour); } // Construct a mask from a bitmap and a palette index indicating @@ -440,17 +1173,17 @@ wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour) wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex) { m_maskBitmap = 0; - Create(bitmap, paletteIndex); + Create(bitmap, paletteIndex); } // Construct a mask from a mono bitmap (copies the bitmap). wxMask::wxMask(const wxBitmap& bitmap) { m_maskBitmap = 0; - Create(bitmap); + Create(bitmap); } -wxMask::~wxMask(void) +wxMask::~wxMask() { if ( m_maskBitmap ) ::DeleteObject((HBITMAP) m_maskBitmap); @@ -459,30 +1192,34 @@ wxMask::~wxMask(void) // 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) - { + { + ::DeleteObject((HBITMAP) m_maskBitmap); + m_maskBitmap = 0; + } + + 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); + BitBlt(destDC, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), srcDC, 0, 0, SRCCOPY); + SelectObject(srcDC, 0); + DeleteDC(srcDC); + SelectObject(destDC, 0); + DeleteDC(destDC); + return TRUE; +#else return FALSE; - } - 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); - BitBlt(destDC, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), srcDC, 0, 0, SRCCOPY); - SelectObject(srcDC, 0); - DeleteDC(srcDC); - SelectObject(destDC, 0); - DeleteDC(destDC); - return TRUE; +#endif } // Create a mask from a bitmap and a palette index indicating @@ -490,380 +1227,163 @@ bool wxMask::Create(const wxBitmap& bitmap) bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) { if ( m_maskBitmap ) - { - ::DeleteObject((HBITMAP) m_maskBitmap); - m_maskBitmap = 0; - } - if (bitmap.Ok() && bitmap.GetPalette()->Ok()) - { - unsigned char red, green, blue; - if (bitmap.GetPalette()->GetRGB(paletteIndex, &red, &green, &blue)) { - wxColour transparentColour(red, green, blue); - return Create(bitmap, transparentColour); + ::DeleteObject((HBITMAP) m_maskBitmap); + m_maskBitmap = 0; } - } - return FALSE; + +#if wxUSE_PALETTE + if (bitmap.Ok() && bitmap.GetPalette()->Ok()) + { + unsigned char red, green, blue; + if (bitmap.GetPalette()->GetRGB(paletteIndex, &red, &green, &blue)) + { + wxColour transparentColour(red, green, blue); + return Create(bitmap, transparentColour); + } + } +#endif // wxUSE_PALETTE + + return FALSE; } // Create a mask from a bitmap and a colour indicating // the transparent area bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) { - if ( m_maskBitmap ) - { - ::DeleteObject((HBITMAP) m_maskBitmap); - m_maskBitmap = 0; - } - if (!bitmap.Ok()) - { - return FALSE; - } - - // 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)); - } - } - } - ::SelectObject(srcDC, 0); - ::DeleteDC(srcDC); - ::SelectObject(destDC, 0); - ::DeleteDC(destDC); - return TRUE; -} - -/* - * wxBitmapHandler - */ - -IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) - -bool wxBitmapHandler::Create(wxBitmap *bitmap, void *data, long type, int width, int height, int depth) -{ - return FALSE; -} - -bool wxBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long type, - int desiredWidth, int desiredHeight) -{ - return FALSE; -} - -bool wxBitmapHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette) -{ - return FALSE; -} +#ifndef __WXMICROWIN__ + wxCHECK_MSG( bitmap.Ok(), FALSE, _T("invalid bitmap in wxMask::Create") ); -/* - * Standard handlers - */ + if ( m_maskBitmap ) + { + ::DeleteObject((HBITMAP) m_maskBitmap); + m_maskBitmap = 0; + } -class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler -{ - DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler) -public: - inline wxBMPResourceHandler(void) - { - m_name = "Windows bitmap resource"; - m_extension = ""; - m_type = wxBITMAP_TYPE_BMP_RESOURCE; - }; + int width = bitmap.GetWidth(), + height = bitmap.GetHeight(); - virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags, - int desiredWidth, int desiredHeight); -}; -IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler) + // 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(width, height, 1, 1, 0); -bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags, - int desiredWidth, int desiredHeight) -{ - // TODO: load colourmap. - M_BITMAPHANDLERDATA->m_hBitmap = (WXHBITMAP) ::LoadBitmap(wxGetInstance(), name); - if (M_BITMAPHANDLERDATA->m_hBitmap) + HDC srcDC = ::CreateCompatibleDC(NULL); + HDC destDC = ::CreateCompatibleDC(NULL); + if ( !srcDC || !destDC ) { - M_BITMAPHANDLERDATA->m_ok = TRUE; - BITMAP bm; - GetObject((HBITMAP) M_BITMAPHANDLERDATA->m_hBitmap, sizeof(BITMAP), (LPSTR) &bm); - M_BITMAPHANDLERDATA->m_width = bm.bmWidth; - M_BITMAPHANDLERDATA->m_height = bm.bmHeight; - M_BITMAPHANDLERDATA->m_depth = bm.bmBitsPixel; - return TRUE; + wxLogLastError(wxT("CreateCompatibleDC")); } - // it's probably not found - wxLogError("Can't load bitmap '%s' from resources! Check .rc file.", name.c_str()); + bool ok = TRUE; - return FALSE; -} + // SelectObject() will fail + wxASSERT_MSG( !bitmap.GetSelectedInto(), + _T("bitmap can't be selected in another DC") ); -class WXDLLEXPORT wxBMPFileHandler: public wxBitmapHandler -{ - DECLARE_DYNAMIC_CLASS(wxBMPFileHandler) -public: - inline wxBMPFileHandler(void) - { - m_name = "Windows bitmap file"; - m_extension = "bmp"; - m_type = wxBITMAP_TYPE_BMP; - }; + HGDIOBJ hbmpSrcOld = ::SelectObject(srcDC, GetHbitmapOf(bitmap)); + if ( !hbmpSrcOld ) + { + wxLogLastError(wxT("SelectObject")); - virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags, - int desiredWidth, int desiredHeight); - virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL); -}; -IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler) + ok = FALSE; + } -bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags, - int desiredWidth, int desiredHeight) -{ -#if wxUSE_IMAGE_LOADING_IN_MSW - wxPalette *palette = NULL; - bool success = FALSE; -/* - if (type & wxBITMAP_DISCARD_COLOURMAP) - success = wxLoadIntoBitmap(WXSTRINGCAST name, bitmap); - else -*/ - success = (wxLoadIntoBitmap(WXSTRINGCAST name, bitmap, &palette) != 0); - if (!success && palette) + HGDIOBJ hbmpDstOld = ::SelectObject(destDC, (HBITMAP)m_maskBitmap); + if ( !hbmpDstOld ) { - delete palette; - palette = NULL; - } - if (palette) - M_BITMAPHANDLERDATA->m_bitmapPalette = *palette; - return success; -#else - return FALSE; -#endif -} + wxLogLastError(wxT("SelectObject")); -bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *pal) -{ -#if wxUSE_IMAGE_LOADING_IN_MSW - wxPalette *actualPalette = (wxPalette *)pal; - if (!actualPalette && (!M_BITMAPHANDLERDATA->m_bitmapPalette.IsNull())) - actualPalette = & (M_BITMAPHANDLERDATA->m_bitmapPalette); - return (wxSaveBitmap(WXSTRINGCAST name, bitmap, actualPalette) != 0); -#else - return FALSE; -#endif -} + ok = FALSE; + } -class WXDLLEXPORT wxXPMFileHandler: public wxBitmapHandler -{ - DECLARE_DYNAMIC_CLASS(wxXPMFileHandler) -public: - inline wxXPMFileHandler(void) - { - m_name = "XPM bitmap file"; - m_extension = "xpm"; - m_type = wxBITMAP_TYPE_XPM; - }; - - virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags, - int desiredWidth = -1, int desiredHeight = -1); - virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL); -}; -IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler) - -bool wxXPMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags, - int desiredWidth, int desiredHeight) -{ -#if wxUSE_XPM_IN_MSW - XImage *ximage; - XpmAttributes xpmAttr; - HDC dc; - - M_BITMAPHANDLERDATA->m_ok = FALSE; - dc = CreateCompatibleDC(NULL); - if (dc) - { - xpmAttr.valuemask = XpmReturnPixels; - int errorStatus = XpmReadFileToImage(&dc, WXSTRINGCAST name, &ximage, (XImage **) NULL, &xpmAttr); - DeleteDC(dc); - if (errorStatus == XpmSuccess) - { - M_BITMAPHANDLERDATA->m_hBitmap = (WXHBITMAP) ximage->bitmap; - - BITMAP bm; - GetObject((HBITMAP)M_BITMAPHANDLERDATA->m_hBitmap, sizeof(bm), (LPSTR) & bm); - - M_BITMAPHANDLERDATA->m_width = (bm.bmWidth); - M_BITMAPHANDLERDATA->m_height = (bm.bmHeight); - M_BITMAPHANDLERDATA->m_depth = (bm.bmPlanes * bm.bmBitsPixel); - M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels; - XpmFreeAttributes(&xpmAttr); - XImageFree(ximage); - - M_BITMAPHANDLERDATA->m_ok = TRUE; - return TRUE; - } - else - { - M_BITMAPHANDLERDATA->m_ok = FALSE; - return 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); } -#endif - return FALSE; -} + ::SelectObject(srcDC, hbmpSrcOld); + ::DeleteDC(srcDC); + ::SelectObject(destDC, hbmpDstOld); + ::DeleteDC(destDC); -bool wxXPMFileHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette) -{ -#if wxUSE_XPM_IN_MSW - HDC dc = NULL; - - XImage ximage; - - dc = CreateCompatibleDC(NULL); - if (dc) - { - if (SelectObject(dc, (HBITMAP) M_BITMAPHANDLERDATA->m_hBitmap)) - { - /* for following SetPixel */ - /* fill the XImage struct 'by hand' */ - ximage.width = M_BITMAPHANDLERDATA->m_width; - ximage.height = M_BITMAPHANDLERDATA->m_height; - ximage.depth = M_BITMAPHANDLERDATA->m_depth; - ximage.bitmap = (HBITMAP)M_BITMAPHANDLERDATA->m_hBitmap; - int errorStatus = XpmWriteFileFromImage(&dc, WXSTRINGCAST name, - &ximage, (XImage *) NULL, (XpmAttributes *) NULL); - - if (dc) - DeleteDC(dc); - - if (errorStatus == XpmSuccess) - return TRUE; /* no error */ - else - return FALSE; - } else return FALSE; - } else return FALSE; -#else + return ok; +#else // __WXMICROWIN__ return FALSE; -#endif +#endif // __WXMICROWIN__/!__WXMICROWIN__ } -class WXDLLEXPORT wxXPMDataHandler: public wxBitmapHandler -{ - DECLARE_DYNAMIC_CLASS(wxXPMDataHandler) -public: - inline wxXPMDataHandler(void) - { - m_name = "XPM bitmap data"; - m_extension = "xpm"; - m_type = wxBITMAP_TYPE_XPM_DATA; - }; - - virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1); -}; -IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler) +// ---------------------------------------------------------------------------- +// wxBitmapHandler +// ---------------------------------------------------------------------------- -bool wxXPMDataHandler::Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth) +bool wxBitmapHandler::Create(wxGDIImage *image, + void *data, + long flags, + int width, int height, int depth) { -#if wxUSE_XPM_IN_MSW - XImage *ximage; - int ErrorStatus; - XpmAttributes xpmAttr; - HDC dc; - - M_BITMAPHANDLERDATA->m_ok = FALSE; - M_BITMAPHANDLERDATA->m_numColors = 0; + wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); - dc = CreateCompatibleDC(NULL); /* memory DC */ - - if (dc) - { - xpmAttr.valuemask = XpmReturnInfos; /* get infos back */ - ErrorStatus = XpmCreateImageFromData(&dc, (char **)data, - &ximage, (XImage **) NULL, &xpmAttr); - - if (ErrorStatus == XpmSuccess) - { - /* ximage is malloced and contains bitmap and attributes */ - M_BITMAPHANDLERDATA->m_hBitmap = (WXHBITMAP) ximage->bitmap; + return bitmap ? Create(bitmap, data, flags, width, height, depth) : FALSE; +} - BITMAP bm; - GetObject((HBITMAP) M_BITMAPHANDLERDATA->m_hBitmap, sizeof(bm), (LPSTR) & bm); +bool wxBitmapHandler::Load(wxGDIImage *image, + const wxString& name, + long flags, + int width, int height) +{ + wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); - M_BITMAPHANDLERDATA->m_width = (bm.bmWidth); - M_BITMAPHANDLERDATA->m_height = (bm.bmHeight); - M_BITMAPHANDLERDATA->m_depth = (bm.bmPlanes * bm.bmBitsPixel); - M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels; - XpmFreeAttributes(&xpmAttr); + return bitmap ? LoadFile(bitmap, name, flags, width, height) : FALSE; +} - XImageFree(ximage); // releases the malloc, but does not detroy - // the bitmap - M_BITMAPHANDLERDATA->m_ok = TRUE; - DeleteDC(dc); +bool wxBitmapHandler::Save(wxGDIImage *image, + const wxString& name, + int type) +{ + wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); - return TRUE; - } - else - { - M_BITMAPHANDLERDATA->m_ok = FALSE; -// XpmDebugError(ErrorStatus, NULL); - DeleteDC(dc); - return FALSE; - } - } -#endif + return bitmap ? SaveFile(bitmap, name, type) : FALSE; +} - return FALSE; +bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap), + void *WXUNUSED(data), + long WXUNUSED(type), + int WXUNUSED(width), + int WXUNUSED(height), + int WXUNUSED(depth)) +{ + return FALSE; } -void wxBitmap::CleanUpHandlers(void) +bool wxBitmapHandler::LoadFile(wxBitmap *WXUNUSED(bitmap), + const wxString& WXUNUSED(name), + long WXUNUSED(type), + int WXUNUSED(desiredWidth), + int WXUNUSED(desiredHeight)) { - wxNode *node = sm_handlers.First(); - while ( node ) - { - wxBitmapHandler *handler = (wxBitmapHandler *)node->Data(); - wxNode *next = node->Next(); - delete handler; - delete node; - node = next; - } + return FALSE; } -void wxBitmap::InitStandardHandlers(void) +bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), + const wxString& WXUNUSED(name), + int WXUNUSED(type), + const wxPalette *WXUNUSED(palette)) { - AddHandler(new wxBMPResourceHandler); - AddHandler(new wxBMPFileHandler); - AddHandler(new wxXPMFileHandler); - AddHandler(new wxXPMDataHandler); - AddHandler(new wxICOResourceHandler); - AddHandler(new wxICOFileHandler); + return FALSE; } -static long createDIB(long xSize, long ySize, long bitsPerPixel, - HPALETTE hPal, LPBITMAPINFO* lpDIBHeader) +// ---------------------------------------------------------------------------- +// DIB functions +// ---------------------------------------------------------------------------- + +#ifndef __WXMICROWIN__ +bool wxCreateDIB(long xSize, long ySize, long bitsPerPixel, + HPALETTE hPal, LPBITMAPINFO* lpDIBHeader) { unsigned long i, headerSize; LPBITMAPINFO lpDIBheader = NULL; @@ -877,10 +1397,8 @@ static long createDIB(long xSize, long ySize, long bitsPerPixel, GetPaletteEntries(hPal, 0, 256, lpPe); - memset(lpDIBheader, 0x00, sizeof(BITMAPINFOHEADER)); - // Fill in the static parts of the DIB header lpDIBheader->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); lpDIBheader->bmiHeader.biWidth = xSize; @@ -890,8 +1408,7 @@ static long createDIB(long xSize, long ySize, long bitsPerPixel, // this value must be 1, 4, 8 or 24 so PixelDepth can only be lpDIBheader->bmiHeader.biBitCount = (WORD)(bitsPerPixel); lpDIBheader->bmiHeader.biCompression = BI_RGB; - lpDIBheader->bmiHeader.biSizeImage = xSize * abs(ySize) * bitsPerPixel >> -3; + lpDIBheader->bmiHeader.biSizeImage = xSize * abs(ySize) * bitsPerPixel >> 3; lpDIBheader->bmiHeader.biClrUsed = 256; @@ -905,21 +1422,60 @@ static long createDIB(long xSize, long ySize, long bitsPerPixel, *lpDIBHeader = lpDIBheader; - - return (0); - + return TRUE; } +void wxFreeDIB(LPBITMAPINFO lpDIBHeader) +{ + free(lpDIBHeader); +} +#endif +// ---------------------------------------------------------------------------- +// other helper functions +// ---------------------------------------------------------------------------- -static long freeDIB(LPBITMAPINFO lpDIBHeader) +extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h) { +#ifndef __WXMICROWIN__ + wxCHECK_MSG( hbmpMask, 0, _T("invalid bitmap in wxInvertMask") ); - if (lpDIBHeader != NULL) { - free(lpDIBHeader); - } + // 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; + } - return (0); -} + 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 +}