X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f48a115976827701bb7b4bab7333f7512de08ab2..9f298361db63eb8d8f427538b2ff233ce36d08a9:/src/msw/bitmap.cpp diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp index b0e759a7b9..0cd514ffd1 100644 --- a/src/msw/bitmap.cpp +++ b/src/msw/bitmap.cpp @@ -39,6 +39,7 @@ #include "wx/image.h" #endif +#include "wx/scopedptr.h" #include "wx/msw/private.h" #include "wx/msw/dc.h" @@ -62,12 +63,14 @@ class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData { public: - wxBitmapRefData(); + wxBitmapRefData() { Init(); } wxBitmapRefData(const wxBitmapRefData& data); virtual ~wxBitmapRefData() { Free(); } virtual void Free(); + void CopyFromDIB(const wxDIB& dib); + // set the mask object to use as the mask, we take ownership of it void SetMask(wxMask *mask) { @@ -114,6 +117,8 @@ public: bool m_isDIB; private: + void Init(); + // optional mask for transparent drawing wxMask *m_bitmapMask; @@ -183,7 +188,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) // wxBitmapRefData // ---------------------------------------------------------------------------- -wxBitmapRefData::wxBitmapRefData() +void wxBitmapRefData::Init() { #if wxDEBUG_LEVEL m_selectedInto = NULL; @@ -202,23 +207,25 @@ wxBitmapRefData::wxBitmapRefData() wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data) : wxGDIImageRefData(data) { -#if wxDEBUG_LEVEL - m_selectedInto = NULL; -#endif + Init(); // (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, + wxASSERT_MSG( !data.m_dib, wxT("can't copy bitmap locked for raw access!") ); - m_isDIB = false; m_hasAlpha = data.m_hasAlpha; + +#if wxUSE_WXDIB + // copy the other bitmap + if ( data.m_hBitmap ) + { + wxDIB dib((HBITMAP)(data.m_hBitmap)); + CopyFromDIB(dib); + } +#endif // wxUSE_WXDIB } void wxBitmapRefData::Free() @@ -241,6 +248,35 @@ void wxBitmapRefData::Free() wxDELETE(m_bitmapMask); } +void wxBitmapRefData::CopyFromDIB(const wxDIB& dib) +{ + wxCHECK_RET( !IsOk(), "bitmap already initialized" ); + wxCHECK_RET( dib.IsOk(), wxT("invalid DIB in CopyFromDIB") ); + +#ifdef SOMETIMES_USE_DIB + HBITMAP hbitmap = dib.CreateDDB(); + if ( !hbitmap ) + return; + m_isDIB = false; +#else // ALWAYS_USE_DIB + HBITMAP hbitmap = const_cast(dib).Detach(); + m_isDIB = true; +#endif // SOMETIMES_USE_DIB/ALWAYS_USE_DIB + + m_width = dib.GetWidth(); + m_height = dib.GetHeight(); + m_depth = dib.GetDepth(); + + m_hBitmap = (WXHBITMAP)hbitmap; + +#if wxUSE_PALETTE + wxPalette *palette = dib.CreatePalette(); + if ( palette ) + m_bitmapPalette = *palette; + delete palette; +#endif // wxUSE_PALETTE +} + // ---------------------------------------------------------------------------- // wxBitmap creation // ---------------------------------------------------------------------------- @@ -250,46 +286,9 @@ wxGDIImageRefData *wxBitmap::CreateData() const return new wxBitmapRefData; } -wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *dataOrig) const +wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *data) 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); - - 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; + return new wxBitmapRefData(*static_cast(data)); } bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon, @@ -342,8 +341,9 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon, wxDIB dib(iconInfo.hbmColor); if (dib.IsOk()) { - const unsigned char* pixels = dib.GetData(); - for (int idx = 0; idx < w*h*4; idx+=4) + unsigned char* const pixels = dib.GetData(); + int idx; + for ( idx = 0; idx < w*h*4; idx += 4 ) { if (pixels[idx+3] != 0) { @@ -353,6 +353,25 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon, break; } } + + if ( refData->m_hasAlpha ) + { + // If we do have alpha, ensure we use premultiplied + // data for our pixels as this is what the bitmaps + // created in other ways do and this is necessary + // for e.g. AlphaBlend() to work with this bitmap. + for ( idx = 0; idx < w*h*4; idx += 4 ) + { + const unsigned char a = pixels[idx+3]; + + pixels[idx] = ((pixels[idx] *a) + 127)/255; + pixels[idx+1] = ((pixels[idx+1]*a) + 127)/255; + pixels[idx+2] = ((pixels[idx+2]*a) + 127)/255; + } + + ::DeleteObject(refData->m_hBitmap); + refData->m_hBitmap = dib.Detach(); + } } } } @@ -387,7 +406,7 @@ bool wxBitmap::CopyFromCursor(const wxCursor& cursor, wxBitmapTransparency trans { UnRef(); - if ( !cursor.Ok() ) + if ( !cursor.IsOk() ) return false; return CopyFromIconOrCursor(cursor, transp); @@ -397,7 +416,7 @@ bool wxBitmap::CopyFromIcon(const wxIcon& icon, wxBitmapTransparency transp) { UnRef(); - if ( !icon.Ok() ) + if ( !icon.IsOk() ) return false; return CopyFromIconOrCursor(icon, transp); @@ -407,37 +426,13 @@ bool wxBitmap::CopyFromIcon(const wxIcon& icon, wxBitmapTransparency transp) bool wxBitmap::CopyFromDIB(const wxDIB& dib) { - wxCHECK_MSG( dib.IsOk(), false, wxT("invalid DIB in CopyFromDIB") ); - -#ifdef SOMETIMES_USE_DIB - HBITMAP hbitmap = dib.CreateDDB(); - if ( !hbitmap ) + wxScopedPtr newData(new wxBitmapRefData); + newData->CopyFromDIB(dib); + if ( !newData->IsOk() ) return false; -#else // ALWAYS_USE_DIB - HBITMAP hbitmap = const_cast(dib).Detach(); -#endif // SOMETIMES_USE_DIB/ALWAYS_USE_DIB UnRef(); - - wxBitmapRefData *refData = new wxBitmapRefData; - m_refData = refData; - - refData->m_width = dib.GetWidth(); - refData->m_height = dib.GetHeight(); - refData->m_depth = dib.GetDepth(); - - refData->m_hBitmap = (WXHBITMAP)hbitmap; - -#if wxUSE_PALETTE - wxPalette *palette = dib.CreatePalette(); - if ( palette ) - { - refData->m_bitmapPalette = *palette; - } - - delete palette; -#endif // wxUSE_PALETTE - + m_refData = newData.release(); return true; } @@ -605,7 +600,7 @@ bool wxBitmap::DoCreate(int w, int h, int d, WXHDC hdc) SetHBITMAP((WXHBITMAP)hbmp); - return Ok(); + return IsOk(); } #if wxUSE_IMAGE @@ -739,7 +734,7 @@ 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; @@ -747,7 +742,7 @@ 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(); @@ -823,7 +818,7 @@ bool wxBitmap::CreateFromImage(const wxImage& image, const wxDC& dc) 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(); @@ -929,7 +924,7 @@ wxImage wxBitmap::ConvertToImage() const // and then DIB to our wxImage wxImage image = dib.ConvertToImage(); - if ( !image.Ok() ) + if ( !image.IsOk() ) { return wxNullImage; } @@ -1039,7 +1034,7 @@ bool wxBitmap::LoadFile(const wxString& filename, wxBitmapType type) else // no bitmap handler found { wxImage image; - if ( image.LoadFile( filename, type ) && image.Ok() ) + if ( image.LoadFile( filename, type ) && image.IsOk() ) { *this = wxBitmap(image); @@ -1084,7 +1079,7 @@ bool wxBitmap::SaveFile(const wxString& filename, { // FIXME what about palette? shouldn't we use it? wxImage image = ConvertToImage(); - if ( image.Ok() ) + if ( image.IsOk() ) { return image.SaveFile(filename, type); } @@ -1106,14 +1101,14 @@ 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, GetDepth() ); - wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") ); + wxASSERT_MSG( ret.IsOk(), wxT("GetSubBitmap error") ); #ifndef __WXMICROWIN__ // handle alpha channel, if any @@ -1178,15 +1173,6 @@ wxMask *wxBitmap::GetMask() const return GetBitmapData() ? GetBitmapData()->GetMask() : NULL; } -wxBitmap wxBitmap::GetMaskBitmap() const -{ - wxBitmap bmp; - wxMask *mask = GetMask(); - if ( mask ) - bmp.SetHBITMAP(mask->GetMaskBitmap()); - return bmp; -} - wxDC *wxBitmap::GetSelectedInto() const { #if wxDEBUG_LEVEL @@ -1248,7 +1234,7 @@ void wxBitmap::SetMask(wxMask *mask) void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) { #if wxUSE_WXDIB - if ( !Ok() ) + if ( !IsOk() ) { // no bitmap, no data (raw or otherwise) return NULL; @@ -1326,7 +1312,7 @@ void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) void wxBitmap::UngetRawData(wxPixelDataBase& dataBase) { #if wxUSE_WXDIB - if ( !Ok() ) + if ( !IsOk() ) return; if ( !&dataBase ) @@ -1427,7 +1413,7 @@ wxMask::~wxMask() bool wxMask::Create(const wxBitmap& bitmap) { #ifndef __WXMICROWIN__ - wxCHECK_MSG( bitmap.Ok() && bitmap.GetDepth() == 1, false, + wxCHECK_MSG( bitmap.IsOk() && bitmap.GetDepth() == 1, false, wxT("can't create mask from invalid or not monochrome bitmap") ); if ( m_maskBitmap ) @@ -1468,7 +1454,7 @@ 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)) @@ -1487,7 +1473,7 @@ bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) { #ifndef __WXMICROWIN__ - wxCHECK_MSG( bitmap.Ok(), false, wxT("invalid bitmap in wxMask::Create") ); + wxCHECK_MSG( bitmap.IsOk(), false, wxT("invalid bitmap in wxMask::Create") ); if ( m_maskBitmap ) { @@ -1554,6 +1540,13 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) #endif // __WXMICROWIN__/!__WXMICROWIN__ } +wxBitmap wxMask::GetBitmap() const +{ + wxBitmap bmp; + bmp.SetHBITMAP(m_maskBitmap); + return bmp; +} + // ---------------------------------------------------------------------------- // wxBitmapHandler // ---------------------------------------------------------------------------- @@ -1625,7 +1618,7 @@ 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; @@ -1633,9 +1626,25 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp, 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. - HBITMAP hMonoBitmap = CreateBitmap(bmp.GetWidth(),bmp.GetHeight(),1,1,NULL); + AutoHBITMAP + hMonoBitmap(CreateBitmap(bmp.GetWidth(),bmp.GetHeight(),1,1,NULL)); ICONINFO iconInfo; wxZeroMemory(iconInfo); @@ -1647,13 +1656,9 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp, } iconInfo.hbmMask = hMonoBitmap; - iconInfo.hbmColor = GetHbitmapOf(bmp); - - HICON hicon = ::CreateIconIndirect(&iconInfo); - - ::DeleteObject(hMonoBitmap); + iconInfo.hbmColor = hbmp; - return hicon; + return ::CreateIconIndirect(&iconInfo); } wxMask* mask = bmp.GetMask(); @@ -1674,7 +1679,8 @@ 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 @@ -1700,9 +1706,6 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp, delete mask; } - // delete the inverted mask bitmap we created as well - ::DeleteObject(iconInfo.hbmMask); - return hicon; }