X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6faac21b0bf815c01b1d98cf3ea3310bb5238f6f..74a8f67d96591cec101def2a7d47c64072aff7fd:/src/msw/bitmap.cpp?ds=inline diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp index b174fdf9de..10756fee7c 100644 --- a/src/msw/bitmap.cpp +++ b/src/msw/bitmap.cpp @@ -1,5 +1,5 @@ //////////////////////////////////////////////////////////////////////////// -// Name: bitmap.cpp +// Name: src/msw/bitmap.cpp // Purpose: wxBitmap // Author: Julian Smart // Modified by: @@ -17,10 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "bitmap.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -28,6 +24,8 @@ #pragma hdrstop #endif +#include "wx/bitmap.h" + #ifndef WX_PRECOMP #include @@ -36,22 +34,20 @@ #include "wx/app.h" #include "wx/palette.h" #include "wx/dcmemory.h" - #include "wx/bitmap.h" #include "wx/icon.h" + #include "wx/log.h" + #include "wx/image.h" #endif #include "wx/msw/private.h" -#include "wx/log.h" +#include "wx/msw/dc.h" #if wxUSE_WXDIB -#include "wx/msw/dib.h" + #include "wx/msw/dib.h" #endif -#include "wx/image.h" -#include "wx/xpmdecod.h" - -#ifdef wxHAVE_RAW_BITMAP -#include "wx/rawbmp.h" +#ifdef wxHAS_RAW_BITMAP + #include "wx/rawbmp.h" #endif // missing from mingw32 header @@ -60,13 +56,14 @@ #endif // no CLR_INVALID // ---------------------------------------------------------------------------- -// Bitmap data +// wxBitmapRefData // ---------------------------------------------------------------------------- class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData { public: wxBitmapRefData(); + wxBitmapRefData(const wxBitmapRefData& data); virtual ~wxBitmapRefData() { Free(); } virtual void Free(); @@ -95,12 +92,12 @@ public: // MSW-specific // ------------ -#ifdef __WXDEBUG__ +#if wxDEBUG_LEVEL // 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__ +#endif // wxDEBUG_LEVEL #if wxUSE_WXDIB // when GetRawData() is called for a DDB we need to convert it to a DIB @@ -120,7 +117,9 @@ private: // optional mask for transparent drawing wxMask *m_bitmapMask; - DECLARE_NO_COPY_CLASS(wxBitmapRefData) + + // not implemented + wxBitmapRefData& operator=(const wxBitmapRefData&); }; // ---------------------------------------------------------------------------- @@ -186,7 +185,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) wxBitmapRefData::wxBitmapRefData() { -#ifdef __WXDEBUG__ +#if wxDEBUG_LEVEL m_selectedInto = NULL; #endif m_bitmapMask = NULL; @@ -197,7 +196,29 @@ wxBitmapRefData::wxBitmapRefData() #endif m_isDIB = - m_hasAlpha = FALSE; + m_hasAlpha = false; +} + +wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data) + : wxGDIImageRefData(data) +{ +#if wxDEBUG_LEVEL + m_selectedInto = NULL; +#endif + + // (deep) copy the mask if present + m_bitmapMask = NULL; + if (data.m_bitmapMask) + m_bitmapMask = new wxMask(*data.m_bitmapMask); + + // FIXME: we don't copy m_hBitmap currently but we should, see wxBitmap:: + // CloneGDIRefData() + + wxASSERT_MSG( !data.m_isDIB, + wxT("can't copy bitmap locked for raw access!") ); + m_isDIB = false; + + m_hasAlpha = data.m_hasAlpha; } void wxBitmapRefData::Free() @@ -206,7 +227,7 @@ void wxBitmapRefData::Free() wxT("deleting bitmap still selected into wxMemoryDC") ); #if wxUSE_WXDIB - wxASSERT_MSG( !m_dib, _T("forgot to call wxBitmap::UngetRawData()!") ); + wxASSERT_MSG( !m_dib, wxT("forgot to call wxBitmap::UngetRawData()!") ); #endif if ( m_hBitmap) @@ -217,28 +238,62 @@ void wxBitmapRefData::Free() } } - delete m_bitmapMask; - m_bitmapMask = NULL; + wxDELETE(m_bitmapMask); } // ---------------------------------------------------------------------------- // wxBitmap creation // ---------------------------------------------------------------------------- -// this function should be called from all wxBitmap ctors -void wxBitmap::Init() -{ - // m_refData = NULL; done in the base class ctor -} - wxGDIImageRefData *wxBitmap::CreateData() const { return new wxBitmapRefData; } -#ifdef __WIN32__ +wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *dataOrig) const +{ + const wxBitmapRefData * + data = static_cast(dataOrig); + if ( !data ) + return NULL; + + // FIXME: this method is backwards, it should just create a new + // wxBitmapRefData using its copy ctor but instead it modifies this + // bitmap itself and then returns its m_refData -- which works, of + // course (except in !wxUSE_WXDIB), but is completely illogical + wxBitmap *self = const_cast(this); -bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) + wxBitmapRefData *selfdata; +#if wxUSE_WXDIB + // copy the other bitmap + if ( data->m_hBitmap ) + { + wxDIB dib((HBITMAP)(data->m_hBitmap)); + self->CopyFromDIB(dib); + + selfdata = static_cast(m_refData); + selfdata->m_hasAlpha = data->m_hasAlpha; + } + else +#endif // wxUSE_WXDIB + { + // copy the bitmap data + selfdata = new wxBitmapRefData(*data); + self->m_refData = selfdata; + } + + // copy also the mask + wxMask * const maskSrc = data->GetMask(); + if ( maskSrc ) + { + selfdata->SetMask(new wxMask(*maskSrc)); + } + + return selfdata; +} + +bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon, + wxBitmapTransparency transp) { #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) // it may be either HICON or HCURSOR @@ -264,55 +319,102 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) refData->m_hBitmap = (WXHBITMAP)iconInfo.hbmColor; - // the mask returned by GetIconInfo() is inversed compared to the usual - // wxWin convention - refData->SetMask(wxInvertMask(iconInfo.hbmMask, w, h)); + switch ( transp ) + { + default: + wxFAIL_MSG( wxT("unknown wxBitmapTransparency value") ); + + case wxBitmapTransparency_None: + // nothing to do, refData->m_hasAlpha is false by default + break; + + case wxBitmapTransparency_Auto: +#if wxUSE_WXDIB + // If the icon is 32 bits per pixel then it may have alpha channel + // data, although there are some icons that are 32 bpp but have no + // alpha... So convert to a DIB and manually check the 4th byte for + // each pixel. + { + BITMAP bm; + if ( ::GetObject(iconInfo.hbmColor, sizeof(bm), &bm) && + (bm.bmBitsPixel == 32) ) + { + wxDIB dib(iconInfo.hbmColor); + if (dib.IsOk()) + { + const unsigned char* pixels = dib.GetData(); + for (int idx = 0; idx < w*h*4; idx+=4) + { + if (pixels[idx+3] != 0) + { + // If there is an alpha byte that is non-zero + // then set the alpha flag and stop checking + refData->m_hasAlpha = true; + break; + } + } + } + } + } + break; +#endif // wxUSE_WXDIB + + case wxBitmapTransparency_Always: + refData->m_hasAlpha = true; + break; + } + if ( !refData->m_hasAlpha ) + { + // the mask returned by GetIconInfo() is inverted compared to the usual + // wxWin convention + refData->SetMask(wxInvertMask(iconInfo.hbmMask, w, h)); + } // delete the old one now as we don't need it any more ::DeleteObject(iconInfo.hbmMask); return true; -#else +#else // __WXMICROWIN__ || __WXWINCE__ wxUnusedVar(icon); + wxUnusedVar(transp); + return false; -#endif +#endif // !__WXWINCE__/__WXWINCE__ } -#endif // Win32 - -bool wxBitmap::CopyFromCursor(const wxCursor& cursor) +bool wxBitmap::CopyFromCursor(const wxCursor& cursor, wxBitmapTransparency transp) { UnRef(); - if ( !cursor.Ok() ) - return FALSE; + if ( !cursor.IsOk() ) + return false; - return CopyFromIconOrCursor(cursor); + return CopyFromIconOrCursor(cursor, transp); } -bool wxBitmap::CopyFromIcon(const wxIcon& icon) +bool wxBitmap::CopyFromIcon(const wxIcon& icon, wxBitmapTransparency transp) { UnRef(); - if ( !icon.Ok() ) - return FALSE; + if ( !icon.IsOk() ) + return false; - return CopyFromIconOrCursor(icon); + return CopyFromIconOrCursor(icon, transp); } #ifndef NEVER_USE_DIB bool wxBitmap::CopyFromDIB(const wxDIB& dib) { - wxCHECK_MSG( dib.IsOk(), FALSE, _T("invalid DIB in CopyFromDIB") ); + wxCHECK_MSG( dib.IsOk(), false, wxT("invalid DIB in CopyFromDIB") ); #ifdef SOMETIMES_USE_DIB HBITMAP hbitmap = dib.CreateDDB(); if ( !hbitmap ) - return FALSE; + return false; #else // ALWAYS_USE_DIB - HBITMAP hbitmap = ((wxDIB &)dib).Detach(); // const_cast + HBITMAP hbitmap = const_cast(dib).Detach(); #endif // SOMETIMES_USE_DIB/ALWAYS_USE_DIB UnRef(); @@ -336,7 +438,7 @@ bool wxBitmap::CopyFromDIB(const wxDIB& dib) delete palette; #endif // wxUSE_PALETTE - return TRUE; + return true; } #endif // NEVER_USE_DIB @@ -347,8 +449,6 @@ wxBitmap::~wxBitmap() wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) { - Init(); - #ifndef __WXMICROWIN__ wxBitmapRefData *refData = new wxBitmapRefData; m_refData = refData; @@ -362,7 +462,7 @@ 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! + // line is reversed! const size_t bytesPerLine = (width + 7) / 8; const size_t padding = bytesPerLine % 2; const size_t len = height * ( padding + bytesPerLine ); @@ -380,10 +480,10 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) for ( int bits = 0; bits < 8; bits++) { reversed <<= 1; - reversed |= (val & 0x01); + reversed |= (unsigned char)(val & 0x01); val >>= 1; } - *dst++ = reversed; + *dst++ = ~reversed; } if ( padding ) @@ -393,7 +493,7 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) else { // bits should already be in Windows standard format - data = (char *)bits; // const_cast is harmless + data = const_cast(bits); } HBITMAP hbmp = ::CreateBitmap(width, height, 1, depth, data); @@ -411,55 +511,19 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) #endif } -// Create from XPM data -#if wxUSE_IMAGE && wxUSE_XPM -bool wxBitmap::CreateFromXpm(const char **data) -#else -bool wxBitmap::CreateFromXpm(const char **WXUNUSED(data)) -#endif -{ -#if wxUSE_IMAGE && wxUSE_XPM - Init(); - - 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) -{ - Init(); - - (void)Create(w, h, d); -} - wxBitmap::wxBitmap(int w, int h, const wxDC& dc) { - Init(); - (void)Create(w, h, dc); } -wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth) +wxBitmap::wxBitmap(const void* data, wxBitmapType type, int width, int height, int depth) { - Init(); - (void)Create(data, type, width, height, depth); } wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type) { - Init(); - - LoadFile(filename, (int)type); + LoadFile(filename, type); } bool wxBitmap::Create(int width, int height, int depth) @@ -469,9 +533,14 @@ bool wxBitmap::Create(int width, int height, int depth) bool wxBitmap::Create(int width, int height, const wxDC& dc) { - wxCHECK_MSG( dc.Ok(), FALSE, _T("invalid HDC in wxBitmap::Create()") ); + wxCHECK_MSG( dc.IsOk(), false, wxT("invalid HDC in wxBitmap::Create()") ); + + const wxMSWDCImpl *impl = wxDynamicCast( dc.GetImpl(), wxMSWDCImpl ); - return DoCreate(width, height, -1, dc.GetHDC()); + if (impl) + return DoCreate(width, height, -1, impl->GetHDC()); + else + return false; } bool wxBitmap::DoCreate(int w, int h, int d, WXHDC hdc) @@ -496,12 +565,12 @@ bool wxBitmap::DoCreate(int w, int h, int d, WXHDC hdc) wxDIB dib(w, h, d); if ( !dib.IsOk() ) - return FALSE; + return false; // don't delete the DIB section in dib object dtor hbmp = dib.Detach(); - GetBitmapData()->m_isDIB = TRUE; + GetBitmapData()->m_isDIB = true; GetBitmapData()->m_depth = d; } else // create a DDB @@ -536,7 +605,7 @@ bool wxBitmap::DoCreate(int w, int h, int d, WXHDC hdc) SetHBITMAP((WXHBITMAP)hbmp); - return Ok(); + return IsOk(); } #if wxUSE_IMAGE @@ -576,7 +645,7 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, const wxDC& dc) if (hBitmap == NULL) { ::ReleaseDC(NULL, hScreenDC); - return FALSE; + return false; } HDC hMemDC = ::CreateCompatibleDC(hScreenDC); @@ -602,7 +671,7 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, const wxDC& dc) if (!hMaskBitmap) { - hasMask = FALSE; + hasMask = false; } else { @@ -613,7 +682,7 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, const wxDC& dc) hOldMaskBitmap = ::SelectObject( hMaskDC, hMaskBitmap); } #else - hasMask = FALSE; + hasMask = false; #endif } @@ -660,7 +729,7 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, const wxDC& dc) SetPalette(image.GetPalette()); #endif // wxUSE_PALETTE - return TRUE; + return true; } wxImage wxBitmap::ConvertToImage() const @@ -670,7 +739,7 @@ wxImage wxBitmap::ConvertToImage() const // so the 'depth' argument is ignored. // TODO: transparency (create a mask image) - if (!Ok()) + if (!IsOk()) { wxFAIL_MSG( wxT("bitmap is invalid") ); return wxNullImage; @@ -678,7 +747,7 @@ wxImage wxBitmap::ConvertToImage() const wxImage image; - wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); + wxCHECK_MSG( IsOk(), wxNullImage, wxT("invalid bitmap") ); // create an wxImage object int width = GetWidth(); @@ -732,8 +801,6 @@ wxImage wxBitmap::ConvertToImage() const // wxImage to/from conversions // ---------------------------------------------------------------------------- -#if wxUSE_WXDIB - bool wxBitmap::CreateFromImage(const wxImage& image, int depth) { return CreateFromImage(image, depth, 0); @@ -741,15 +808,22 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth) bool wxBitmap::CreateFromImage(const wxImage& image, const wxDC& dc) { - wxCHECK_MSG( dc.Ok(), FALSE, - _T("invalid HDC in wxBitmap::CreateFromImage()") ); + wxCHECK_MSG( dc.IsOk(), false, + wxT("invalid HDC in wxBitmap::CreateFromImage()") ); + + const wxMSWDCImpl *impl = wxDynamicCast( dc.GetImpl(), wxMSWDCImpl ); - return CreateFromImage(image, -1, dc.GetHDC()); + if (impl) + return CreateFromImage(image, -1, impl->GetHDC()); + else + return false; } +#if wxUSE_WXDIB + bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc) { - wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") ); + wxCHECK_MSG( image.IsOk(), false, wxT("invalid image") ); UnRef(); @@ -759,14 +833,19 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc) wxDIB dib(image); if ( !dib.IsOk() ) - return FALSE; + return false; + const bool hasAlpha = image.HasAlpha(); + + if (depth == -1) + depth = dib.GetDepth(); // store the bitmap parameters - wxBitmapRefData *refData = new wxBitmapRefData; + wxBitmapRefData * const refData = new wxBitmapRefData; refData->m_width = w; refData->m_height = h; - refData->m_hasAlpha = image.HasAlpha(); + refData->m_hasAlpha = hasAlpha; + refData->m_depth = depth; m_refData = refData; @@ -777,20 +856,17 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc) // are we going to use DIB? // // NB: DDBs don't support alpha so if we have alpha channel we must use DIB - if ( image.HasAlpha() || wxShouldCreateDIB(w, h, depth, hdc) ) + if ( hasAlpha || wxShouldCreateDIB(w, h, depth, hdc) ) { // don't delete the DIB section in dib object dtor hbitmap = dib.Detach(); - refData->m_isDIB = TRUE; - refData->m_depth = dib.GetDepth(); + refData->m_isDIB = true; } #ifndef ALWAYS_USE_DIB else // we need to convert DIB to DDB { hbitmap = dib.CreateDDB((HDC)hdc); - - refData->m_depth = depth == -1 ? dib.GetDepth() : depth; } #endif // !ALWAYS_USE_DIB @@ -800,12 +876,45 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc) // finally also set the mask if we have one if ( image.HasMask() ) { - SetMask(new wxMask(*this, wxColour(image.GetMaskRed(), - image.GetMaskGreen(), - image.GetMaskBlue()))); + const size_t len = 2*((w+15)/16); + BYTE *src = image.GetData(); + BYTE *data = new BYTE[h*len]; + memset(data, 0, h*len); + BYTE r = image.GetMaskRed(), + g = image.GetMaskGreen(), + b = image.GetMaskBlue(); + BYTE *dst = data; + for ( int y = 0; y < h; y++, dst += len ) + { + BYTE *dstLine = dst; + BYTE mask = 0x80; + for ( int x = 0; x < w; x++, src += 3 ) + { + if (src[0] != r || src[1] != g || src[2] != b) + *dstLine |= mask; + + if ( (mask >>= 1) == 0 ) + { + dstLine++; + mask = 0x80; + } + } + } + + hbitmap = ::CreateBitmap(w, h, 1, 1, data); + if ( !hbitmap ) + { + wxLogLastError(wxT("CreateBitmap(mask)")); + } + else + { + SetMask(new wxMask((WXHBITMAP)hbitmap)); + } + + delete[] data; } - return TRUE; + return true; } wxImage wxBitmap::ConvertToImage() const @@ -820,7 +929,7 @@ wxImage wxBitmap::ConvertToImage() const // and then DIB to our wxImage wxImage image = dib.ConvertToImage(); - if ( !image.Ok() ) + if ( !image.IsOk() ) { return wxNullImage; } @@ -891,7 +1000,22 @@ wxImage wxBitmap::ConvertToImage() const return image; } -#endif // wxUSE_WXDIB +#else // !wxUSE_WXDIB + +bool +wxBitmap::CreateFromImage(const wxImage& WXUNUSED(image), + int WXUNUSED(depth), + WXHDC WXUNUSED(hdc)) +{ + return false; +} + +wxImage wxBitmap::ConvertToImage() const +{ + return wxImage(); +} + +#endif // wxUSE_WXDIB/!wxUSE_WXDIB #endif // wxUSE_IMAGE @@ -899,7 +1023,7 @@ wxImage wxBitmap::ConvertToImage() const // loading and saving bitmaps // ---------------------------------------------------------------------------- -bool wxBitmap::LoadFile(const wxString& filename, long type) +bool wxBitmap::LoadFile(const wxString& filename, wxBitmapType type) { UnRef(); @@ -911,23 +1035,23 @@ bool wxBitmap::LoadFile(const wxString& filename, long type) return handler->LoadFile(this, filename, type, -1, -1); } -#if wxUSE_IMAGE +#if wxUSE_IMAGE && wxUSE_WXDIB else // no bitmap handler found { wxImage image; - if ( image.LoadFile( filename, type ) && image.Ok() ) + if ( image.LoadFile( filename, type ) && image.IsOk() ) { *this = wxBitmap(image); - return TRUE; + return true; } } #endif // wxUSE_IMAGE - return FALSE; + return false; } -bool wxBitmap::Create(void *data, long type, int width, int height, int depth) +bool wxBitmap::Create(const void* data, wxBitmapType type, int width, int height, int depth) { UnRef(); @@ -937,7 +1061,7 @@ bool wxBitmap::Create(void *data, long type, int width, int height, int depth) { wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for type %ld defined."), type); - return FALSE; + return false; } m_refData = new wxBitmapRefData; @@ -946,8 +1070,8 @@ bool wxBitmap::Create(void *data, long type, int width, int height, int depth) } bool wxBitmap::SaveFile(const wxString& filename, - int type, - const wxPalette *palette) + wxBitmapType type, + const wxPalette *palette) const { wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler); @@ -955,56 +1079,63 @@ bool wxBitmap::SaveFile(const wxString& filename, { return handler->SaveFile(this, filename, type, palette); } -#if wxUSE_IMAGE +#if wxUSE_IMAGE && wxUSE_WXDIB else // no bitmap handler found { // FIXME what about palette? shouldn't we use it? wxImage image = ConvertToImage(); - if ( image.Ok() ) + if ( image.IsOk() ) { return image.SaveFile(filename, type); } } #endif // wxUSE_IMAGE - return FALSE; + return false; } // ---------------------------------------------------------------------------- // sub bitmap extraction // ---------------------------------------------------------------------------- +wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect ) const +{ + MemoryHDC dcSrc; + SelectInHDC selectSrc(dcSrc, GetHbitmap()); + return GetSubBitmapOfHDC( rect, (WXHDC)dcSrc ); +} -wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const +wxBitmap wxBitmap::GetSubBitmapOfHDC( const wxRect& rect, WXHDC hdc ) const { - wxCHECK_MSG( Ok() && + wxCHECK_MSG( IsOk() && (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") ); + wxBitmap ret( rect.width, rect.height, GetDepth() ); + wxASSERT_MSG( ret.IsOk(), wxT("GetSubBitmap error") ); #ifndef __WXMICROWIN__ - // TODO: copy alpha channel data if any + // handle alpha channel, if any + if (HasAlpha()) + ret.UseAlpha(); // copy bitmap data MemoryHDC dcSrc, dcDst; { - SelectInHDC selectSrc(dcSrc, GetHbitmap()), - selectDst(dcDst, GetHbitmapOf(ret)); + SelectInHDC selectDst(dcDst, GetHbitmapOf(ret)); - if ( !selectSrc || !selectDst ) + if ( !selectDst ) { - wxLogLastError(_T("SelectObjct(hBitmap)")); + wxLogLastError(wxT("SelectObject(destBitmap)")); } if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height, - dcSrc, rect.x, rect.y, SRCCOPY) ) + (HDC)hdc, rect.x, rect.y, SRCCOPY) ) { - wxLogLastError(_T("BitBlt")); + wxLogLastError(wxT("BitBlt")); } } @@ -1019,7 +1150,7 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height, dcSrc, rect.x, rect.y, SRCCOPY) ) { - wxLogLastError(_T("BitBlt")); + wxLogLastError(wxT("BitBlt")); } wxMask *mask = new wxMask((WXHBITMAP) hbmpMask); @@ -1038,33 +1169,33 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const wxPalette* wxBitmap::GetPalette() const { return GetBitmapData() ? &GetBitmapData()->m_bitmapPalette - : (wxPalette *) NULL; + : NULL; } #endif wxMask *wxBitmap::GetMask() const { - return GetBitmapData() ? GetBitmapData()->GetMask() : (wxMask *) NULL; + return GetBitmapData() ? GetBitmapData()->GetMask() : NULL; } -#ifdef __WXDEBUG__ - -wxDC *wxBitmap::GetSelectedInto() const +wxBitmap wxBitmap::GetMaskBitmap() const { - return GetBitmapData() ? GetBitmapData()->m_selectedInto : (wxDC *) NULL; + wxBitmap bmp; + wxMask *mask = GetMask(); + if ( mask ) + bmp.SetHBITMAP(mask->GetMaskBitmap()); + return bmp; } -#endif - -#if WXWIN_COMPATIBILITY_2_4 - -int wxBitmap::GetQuality() const +wxDC *wxBitmap::GetSelectedInto() const { - return 0; +#if wxDEBUG_LEVEL + return GetBitmapData() ? GetBitmapData()->m_selectedInto : NULL; +#else + return NULL; +#endif } -#endif // WXWIN_COMPATIBILITY_2_4 - void wxBitmap::UseAlpha() { if ( GetBitmapData() ) @@ -1080,21 +1211,21 @@ bool wxBitmap::HasAlpha() const // wxBitmap setters // ---------------------------------------------------------------------------- -#ifdef __WXDEBUG__ - void wxBitmap::SetSelectedInto(wxDC *dc) { +#if wxDEBUG_LEVEL if ( GetBitmapData() ) GetBitmapData()->m_selectedInto = dc; -} - +#else + wxUnusedVar(dc); #endif +} #if wxUSE_PALETTE void wxBitmap::SetPalette(const wxPalette& palette) { - EnsureHasData(); + AllocExclusive(); GetBitmapData()->m_bitmapPalette = palette; } @@ -1103,28 +1234,21 @@ void wxBitmap::SetPalette(const wxPalette& palette) void wxBitmap::SetMask(wxMask *mask) { - EnsureHasData(); + AllocExclusive(); GetBitmapData()->SetMask(mask); } -#if WXWIN_COMPATIBILITY_2_4 - -void wxBitmap::SetQuality(int WXUNUSED(quality)) -{ -} - -#endif // WXWIN_COMPATIBILITY_2_4 - // ---------------------------------------------------------------------------- // raw bitmap access support // ---------------------------------------------------------------------------- -#ifdef wxHAVE_RAW_BITMAP +#ifdef wxHAS_RAW_BITMAP + void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) { #if wxUSE_WXDIB - if ( !Ok() ) + if ( !IsOk() ) { // no bitmap, no data (raw or otherwise) return NULL; @@ -1136,8 +1260,8 @@ void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) HBITMAP hDIB; if ( !GetBitmapData()->m_isDIB ) { - wxCHECK_MSG( !GetBitmapData()->m_dib, FALSE, - _T("GetRawData() may be called only once") ); + wxCHECK_MSG( !GetBitmapData()->m_dib, NULL, + wxT("GetRawData() may be called only once") ); wxDIB *dib = new wxDIB(*this); if ( !dib->IsOk() ) @@ -1160,7 +1284,7 @@ void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) DIBSECTION ds; if ( ::GetObject(hDIB, sizeof(ds), &ds) != sizeof(DIBSECTION) ) { - wxFAIL_MSG( _T("failed to get DIBSECTION from a DIB?") ); + wxFAIL_MSG( wxT("failed to get DIBSECTION from a DIB?") ); return NULL; } @@ -1168,7 +1292,7 @@ void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) // check that the bitmap is in correct format if ( ds.dsBm.bmBitsPixel != bpp ) { - wxFAIL_MSG( _T("incorrect bitmap type in wxBitmap::GetRawData()") ); + wxFAIL_MSG( wxT("incorrect bitmap type in wxBitmap::GetRawData()") ); return NULL; } @@ -1180,7 +1304,11 @@ void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) data.m_height = h; // remember that DIBs are stored in top to bottom order! - const LONG bytesPerRow = ds.dsBm.bmWidthBytes; + // (We can't just use ds.dsBm.bmWidthBytes here, because it isn't always a + // multiple of 2, as required by the documentation. So we use the official + // formula, which we already use elsewhere.) + const LONG bytesPerRow = + wxDIB::GetLineSize(ds.dsBm.bmWidth, ds.dsBm.bmBitsPixel); data.m_stride = -bytesPerRow; char *bits = (char *)ds.dsBm.bmBits; @@ -1198,15 +1326,10 @@ void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) void wxBitmap::UngetRawData(wxPixelDataBase& dataBase) { #if wxUSE_WXDIB - if ( !Ok() ) + if ( !IsOk() ) return; - // the cast is ugly but we can't do without it and without making this - // function template (and hence inline) unfortunately - typedef wxPixelData PixelData; - PixelData& data = (PixelData &)dataBase; - - if ( !data ) + if ( !&dataBase ) { // invalid data, don't crash -- but don't assert neither as we're // called automatically from wxPixelDataBase dtor and so there is no @@ -1214,36 +1337,6 @@ void wxBitmap::UngetRawData(wxPixelDataBase& dataBase) return; } - if ( GetBitmapData()->m_hasAlpha ) - { - // AlphaBlend() wants to have premultiplied source alpha but - // wxRawBitmap API uses normal, not premultiplied, colours, so adjust - // them here now - PixelData::Iterator p(data); - - const int w = data.GetWidth(); - const int h = data.GetHeight(); - - for ( int y = 0; y < h; y++ ) - { - PixelData::Iterator rowStart = p; - - for ( int x = 0; x < w; x++ ) - { - const unsigned alpha = p.Alpha(); - - p.Red() = (p.Red() * alpha + 127) / 255; - p.Blue() = (p.Blue() * alpha + 127) / 255; - p.Green() = (p.Green() * alpha + 127) / 255; - - ++p; - } - - p = rowStart; - p.OffsetY(data, 1); - } - } - // if we're a DDB we need to convert DIB back to DDB now to make the // changes made via raw bitmap access effective if ( !GetBitmapData()->m_isDIB ) @@ -1257,7 +1350,7 @@ void wxBitmap::UngetRawData(wxPixelDataBase& dataBase) } #endif // wxUSE_WXDIB } -#endif // #ifdef wxHAVE_RAW_BITMAP +#endif // wxHAS_RAW_BITMAP // ---------------------------------------------------------------------------- // wxMask @@ -1268,6 +1361,39 @@ wxMask::wxMask() m_maskBitmap = 0; } +// Copy constructor +wxMask::wxMask(const wxMask &mask) + : wxObject() +{ + BITMAP bmp; + + HDC srcDC = CreateCompatibleDC(0); + HDC destDC = CreateCompatibleDC(0); + + // GetBitmapDimensionEx won't work if SetBitmapDimensionEx wasn't used + // so we'll use GetObject() API here: + if (::GetObject((HGDIOBJ)mask.m_maskBitmap, sizeof(bmp), &bmp) == 0) + { + wxFAIL_MSG(wxT("Cannot retrieve the dimensions of the wxMask to copy")); + return; + } + + // create our HBITMAP + int w = bmp.bmWidth, h = bmp.bmHeight; + m_maskBitmap = (WXHBITMAP)CreateCompatibleBitmap(srcDC, w, h); + + // copy the mask's HBITMAP into our HBITMAP + SelectObject(srcDC, (HBITMAP) mask.m_maskBitmap); + SelectObject(destDC, (HBITMAP) m_maskBitmap); + + BitBlt(destDC, 0, 0, w, h, srcDC, 0, 0, SRCCOPY); + + SelectObject(srcDC, 0); + DeleteDC(srcDC); + SelectObject(destDC, 0); + DeleteDC(destDC); +} + // Construct a mask from a bitmap and a colour indicating // the transparent area wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour) @@ -1301,8 +1427,8 @@ wxMask::~wxMask() 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") ); + wxCHECK_MSG( bitmap.IsOk() && bitmap.GetDepth() == 1, false, + wxT("can't create mask from invalid or not monochrome bitmap") ); if ( m_maskBitmap ) { @@ -1324,9 +1450,10 @@ bool wxMask::Create(const wxBitmap& bitmap) DeleteDC(srcDC); SelectObject(destDC, 0); DeleteDC(destDC); - return TRUE; + return true; #else - return FALSE; + wxUnusedVar(bitmap); + return false; #endif } @@ -1341,7 +1468,7 @@ bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) } #if wxUSE_PALETTE - if (bitmap.Ok() && bitmap.GetPalette()->Ok()) + if (bitmap.IsOk() && bitmap.GetPalette()->IsOk()) { unsigned char red, green, blue; if (bitmap.GetPalette()->GetRGB(paletteIndex, &red, &green, &blue)) @@ -1352,7 +1479,7 @@ bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) } #endif // wxUSE_PALETTE - return FALSE; + return false; } // Create a mask from a bitmap and a colour indicating @@ -1360,7 +1487,7 @@ bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) { #ifndef __WXMICROWIN__ - wxCHECK_MSG( bitmap.Ok(), FALSE, _T("invalid bitmap in wxMask::Create") ); + wxCHECK_MSG( bitmap.IsOk(), false, wxT("invalid bitmap in wxMask::Create") ); if ( m_maskBitmap ) { @@ -1383,18 +1510,18 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) wxLogLastError(wxT("CreateCompatibleDC")); } - bool ok = TRUE; + bool ok = true; // SelectObject() will fail wxASSERT_MSG( !bitmap.GetSelectedInto(), - _T("bitmap can't be selected in another DC") ); + wxT("bitmap can't be selected in another DC") ); HGDIOBJ hbmpSrcOld = ::SelectObject(srcDC, GetHbitmapOf(bitmap)); if ( !hbmpSrcOld ) { wxLogLastError(wxT("SelectObject")); - ok = FALSE; + ok = false; } HGDIOBJ hbmpDstOld = ::SelectObject(destDC, (HBITMAP)m_maskBitmap); @@ -1402,7 +1529,7 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) { wxLogLastError(wxT("SelectObject")); - ok = FALSE; + ok = false; } if ( ok ) @@ -1421,7 +1548,9 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) return ok; #else // __WXMICROWIN__ - return FALSE; + wxUnusedVar(bitmap); + wxUnusedVar(colour); + return false; #endif // __WXMICROWIN__/!__WXMICROWIN__ } @@ -1430,111 +1559,60 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) // ---------------------------------------------------------------------------- bool wxBitmapHandler::Create(wxGDIImage *image, - void *data, - long flags, + const void* data, + wxBitmapType type, int width, int height, int depth) { wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); - return bitmap ? Create(bitmap, data, flags, width, height, depth) : FALSE; + return bitmap && Create(bitmap, data, type, width, height, depth); } bool wxBitmapHandler::Load(wxGDIImage *image, const wxString& name, - long flags, + wxBitmapType type, int width, int height) { wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); - return bitmap ? LoadFile(bitmap, name, flags, width, height) : FALSE; + return bitmap && LoadFile(bitmap, name, type, width, height); } -bool wxBitmapHandler::Save(wxGDIImage *image, +bool wxBitmapHandler::Save(const wxGDIImage *image, const wxString& name, - int type) + wxBitmapType type) const { wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); - return bitmap ? SaveFile(bitmap, name, type) : FALSE; + return bitmap && SaveFile(bitmap, name, type); } bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap), - void *WXUNUSED(data), - long WXUNUSED(type), + const void* WXUNUSED(data), + wxBitmapType WXUNUSED(type), int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth)) { - return FALSE; + return false; } bool wxBitmapHandler::LoadFile(wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name), - long WXUNUSED(type), + wxBitmapType WXUNUSED(type), int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight)) { - return FALSE; + return false; } -bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), +bool wxBitmapHandler::SaveFile(const wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name), - int WXUNUSED(type), - const wxPalette *WXUNUSED(palette)) -{ - return FALSE; -} - -// ---------------------------------------------------------------------------- -// DIB functions -// ---------------------------------------------------------------------------- - -#ifndef __WXMICROWIN__ -bool wxCreateDIB(long xSize, long ySize, long bitsPerPixel, - HPALETTE hPal, LPBITMAPINFO* lpDIBHeader) -{ - unsigned long i, headerSize; - - // Allocate space for a DIB header - headerSize = (sizeof(BITMAPINFOHEADER) + (256 * sizeof(PALETTEENTRY))); - LPBITMAPINFO lpDIBheader = (BITMAPINFO *) malloc(headerSize); - LPPALETTEENTRY lpPe = (PALETTEENTRY *)((BYTE*)lpDIBheader + sizeof(BITMAPINFOHEADER)); - - 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; - lpDIBheader->bmiHeader.biHeight = ySize; - lpDIBheader->bmiHeader.biPlanes = 1; - - // 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.biClrUsed = 256; - - - // Initialize the DIB palette - for (i = 0; i < 256; i++) { - lpDIBheader->bmiColors[i].rgbReserved = lpPe[i].peFlags; - lpDIBheader->bmiColors[i].rgbRed = lpPe[i].peRed; - lpDIBheader->bmiColors[i].rgbGreen = lpPe[i].peGreen; - lpDIBheader->bmiColors[i].rgbBlue = lpPe[i].peBlue; - } - - *lpDIBHeader = lpDIBheader; - - return TRUE; -} - -void wxFreeDIB(LPBITMAPINFO lpDIBHeader) + wxBitmapType WXUNUSED(type), + const wxPalette *WXUNUSED(palette)) const { - free(lpDIBHeader); + return false; } -#endif // ---------------------------------------------------------------------------- // global helper functions implemented here @@ -1547,13 +1625,51 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp, int hotSpotX, int hotSpotY) { - if ( !bmp.Ok() ) + if ( !bmp.IsOk() ) { // we can't create an icon/cursor form nothing return 0; } - wxMask *mask = bmp.GetMask(); + if ( bmp.HasAlpha() ) + { + HBITMAP hbmp; + +#if wxUSE_WXDIB && wxUSE_IMAGE + // CreateIconIndirect() requires non-pre-multiplied pixel data on input + // as it does pre-multiplication internally itself so we need to create + // a special DIB in such format to pass to it. This is inefficient but + // better than creating an icon with wrong colours. + AutoHBITMAP hbmpRelease; + hbmp = wxDIB(bmp.ConvertToImage(), + wxDIB::PixelFormat_NotPreMultiplied).Detach(); + hbmpRelease.Init(hbmp); +#else // !(wxUSE_WXDIB && wxUSE_IMAGE) + hbmp = GetHbitmapOf(bmp); +#endif // wxUSE_WXDIB && wxUSE_IMAGE + + // Create an empty mask bitmap. + // it doesn't seem to work if we mess with the mask at all. + AutoHBITMAP + hMonoBitmap(CreateBitmap(bmp.GetWidth(),bmp.GetHeight(),1,1,NULL)); + + ICONINFO iconInfo; + wxZeroMemory(iconInfo); + iconInfo.fIcon = iconWanted; // do we want an icon or a cursor? + if ( !iconWanted ) + { + iconInfo.xHotspot = hotSpotX; + iconInfo.yHotspot = hotSpotY; + } + + iconInfo.hbmMask = hMonoBitmap; + iconInfo.hbmColor = hbmp; + + return ::CreateIconIndirect(&iconInfo); + } + + wxMask* mask = bmp.GetMask(); + if ( !mask ) { // we must have a mask for an icon, so even if it's probably incorrect, @@ -1570,7 +1686,8 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp, iconInfo.yHotspot = hotSpotY; } - iconInfo.hbmMask = wxInvertMask((HBITMAP)mask->GetMaskBitmap()); + AutoHBITMAP hbmpMask(wxInvertMask((HBITMAP)mask->GetMaskBitmap())); + iconInfo.hbmMask = hbmpMask; iconInfo.hbmColor = GetHbitmapOf(bmp); // black out the transparent area to preserve background colour, because @@ -1584,38 +1701,35 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp, if ( !::BitBlt(dcDst, 0, 0, bmp.GetWidth(), bmp.GetHeight(), dcSrc, 0, 0, SRCAND) ) { - wxLogLastError(_T("BitBlt")); + wxLogLastError(wxT("BitBlt")); } } HICON hicon = ::CreateIconIndirect(&iconInfo); - if ( !bmp.GetMask() ) + if ( !bmp.GetMask() && !bmp.HasAlpha() ) { // we created the mask, now delete it delete mask; } - // delete the inverted mask bitmap we created as well - ::DeleteObject(iconInfo.hbmMask); - return hicon; } HICON wxBitmapToHICON(const wxBitmap& bmp) { - return wxBitmapToIconOrCursor(bmp, TRUE, 0, 0); + return wxBitmapToIconOrCursor(bmp, true, 0, 0); } HCURSOR wxBitmapToHCURSOR(const wxBitmap& bmp, int hotSpotX, int hotSpotY) { - return (HCURSOR)wxBitmapToIconOrCursor(bmp, FALSE, hotSpotX, hotSpotY); + return (HCURSOR)wxBitmapToIconOrCursor(bmp, false, hotSpotX, hotSpotY); } HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h) { #ifndef __WXMICROWIN__ - wxCHECK_MSG( hbmpMask, 0, _T("invalid bitmap in wxInvertMask") ); + wxCHECK_MSG( hbmpMask, 0, wxT("invalid bitmap in wxInvertMask") ); // get width/height from the bitmap if not given if ( !w || !h ) @@ -1651,7 +1765,7 @@ HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h) // Deselect objects SelectObject(hdcSrc,srcTmp); SelectObject(hdcDst,dstTmp); - + ::DeleteDC(hdcSrc); ::DeleteDC(hdcDst);