X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/26ac40202f84fd07c9f24885b4d36b34b9468f4d..6342bd1ab36c1957684c00d408d09fba65d33db6:/src/msw/bitmap.cpp diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp index 581eadde0a..b5bd43e892 100644 --- a/src/msw/bitmap.cpp +++ b/src/msw/bitmap.cpp @@ -9,374 +9,485 @@ // 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/dcmemory.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 "wx/msw/private.h" #include "wx/log.h" -#include "assert.h" - #include "wx/msw/dib.h" +#include "wx/image.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) +IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) + +// ============================================================================ +// implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// wxBitmapRefData +// ---------------------------------------------------------------------------- + +wxBitmapRefData::wxBitmapRefData() +{ + m_quality = 0; + m_selectedInto = NULL; + m_numColors = 0; + m_bitmapMask = NULL; + m_hBitmap = (WXHBITMAP) NULL; +} + +void wxBitmapRefData::Free() +{ + wxASSERT_MSG( !m_selectedInto, + wxT("deleting bitmap still selected into wxMemoryDC") ); + + if ( m_hBitmap) + { + if ( !::DeleteObject((HBITMAP)m_hBitmap) ) + { + wxLogLastError(wxT("DeleteObject(hbitmap)")); + } + } + delete m_bitmapMask; - m_bitmapMask = NULL; + m_bitmapMask = NULL; +} +// ---------------------------------------------------------------------------- +// wxBitmap creation +// ---------------------------------------------------------------------------- + +// this function should be called from all wxBitmap ctors +void wxBitmap::Init() +{ + // m_refData = NULL; done in the base class ctor + + if ( wxTheBitmapList ) + wxTheBitmapList->AddBitmap(this); } -wxList wxBitmap::sm_handlers; +#ifdef __WIN32__ -wxBitmap::wxBitmap(void) +bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) { - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); + // it may be either HICON or HCURSOR + HICON hicon = (HICON)icon.GetHandle(); + + ICONINFO iconInfo; + if ( !::GetIconInfo(hicon, &iconInfo) ) + { + wxLogLastError(wxT("GetIconInfo")); + + return FALSE; + } + + wxBitmapRefData *refData = new wxBitmapRefData; + m_refData = refData; + + int w = icon.GetWidth(), + h = icon.GetHeight(); + + refData->m_width = w; + refData->m_height = h; + refData->m_depth = wxDisplayDepth(); + + refData->m_hBitmap = (WXHBITMAP)iconInfo.hbmColor; + + // the mask returned by GetIconInfo() is inversed compared to the usual + // wxWin convention + refData->m_bitmapMask = new wxMask((WXHBITMAP) + wxInvertMask(iconInfo.hbmMask, w, h)); + +#if WXWIN_COMPATIBILITY_2 + refData->m_ok = TRUE; +#endif // WXWIN_COMPATIBILITY_2 + + return TRUE; } -wxBitmap::~wxBitmap(void) +#endif // Win32 + +bool wxBitmap::CopyFromCursor(const wxCursor& cursor) { - if (wxTheBitmapList) - wxTheBitmapList->DeleteObject(this); + UnRef(); + + if ( !cursor.Ok() ) + return FALSE; + +#ifdef __WIN16__ + wxFAIL_MSG( _T("don't know how to convert cursor to bitmap") ); + + return FALSE; +#else + return CopyFromIconOrCursor(cursor); +#endif // Win16 } -bool wxBitmap::FreeResource(bool WXUNUSED(force)) +bool wxBitmap::CopyFromIcon(const wxIcon& icon) { - if ( !M_BITMAPDATA ) - return FALSE; + UnRef(); + + if ( !icon.Ok() ) + return FALSE; + + // 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(); + + // copy the icon to the bitmap + ScreenHDC hdcScreen; + HDC hdc = ::CreateCompatibleDC(hdcScreen); + HBITMAP hbitmap = ::CreateCompatibleBitmap(hdcScreen, width, height); + HBITMAP hbmpOld = (HBITMAP)::SelectObject(hdc, hbitmap); + + ::DrawIcon(hdc, 0, 0, GetHiconOf(icon)); + + ::SelectObject(hdc, hbmpOld); + ::DeleteDC(hdc); - 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 ; + wxBitmapRefData *refData = new wxBitmapRefData; + m_refData = refData; -/* - if (M_BITMAPDATA->m_bitmapPalette) - delete M_BITMAPDATA->m_bitmapPalette; + refData->m_width = width; + refData->m_height = height; + refData->m_depth = wxDisplayDepth(); - M_BITMAPDATA->m_bitmapPalette = NULL ; -*/ + refData->m_hBitmap = (WXHBITMAP)hbitmap; - return TRUE; +#if WXWIN_COMPATIBILITY_2 + refData->m_ok = TRUE; +#endif // WXWIN_COMPATIBILITY_2 + + return TRUE; +#else // Win32 + return CopyFromIconOrCursor(icon); +#endif // Win16/Win32 } +wxBitmap::~wxBitmap() +{ + if (wxTheBitmapList) + wxTheBitmapList->DeleteObject(this); +} -wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits) +wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) { - m_refData = new wxBitmapRefData; + Init(); - M_BITMAPDATA->m_width = the_width ; - M_BITMAPDATA->m_height = the_height ; - M_BITMAPDATA->m_depth = no_bits ; - M_BITMAPDATA->m_numColors = 0; + wxBitmapRefData *refData = new wxBitmapRefData; + m_refData = refData; - M_BITMAPDATA->m_hBitmap = (WXHBITMAP) CreateBitmap(the_width, the_height, 1, no_bits, bits); + refData->m_width = width; + refData->m_height = height; + refData->m_depth = depth; + refData->m_numColors = 0; + refData->m_selectedInto = NULL; - if (M_BITMAPDATA->m_hBitmap) - M_BITMAPDATA->m_ok = TRUE; - else - M_BITMAPDATA->m_ok = 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! + static const size_t bytesPerLine = (width + 7) / 8; + static const size_t padding = bytesPerLine % 2; + static 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 + } - M_BITMAPDATA->m_selectedInto = NULL; + HBITMAP hbmp = ::CreateBitmap(width, height, 1, depth, data); + if ( !hbmp ) + { + wxLogLastError(wxT("CreateBitmap")); + } - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); + if ( data != bits ) + { + free(data); + } + + SetHBITMAP((WXHBITMAP)hbmp); } // Create from XPM data -wxBitmap::wxBitmap(char **data, wxControl *WXUNUSED(anItem)) +bool wxBitmap::CreateFromXpm(const char **data) { - (void) Create((void *)data, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0); + Init(); + + return Create((void *)data, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0); } wxBitmap::wxBitmap(int w, int h, int d) { - (void)Create(w, h, d); + Init(); - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); + (void)Create(w, h, d); } wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth) { - (void) Create(data, type, width, height, depth); + Init(); - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); + (void)Create(data, type, width, height, depth); } wxBitmap::wxBitmap(const wxString& filename, long type) { - LoadFile(filename, (int)type); + Init(); - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); + LoadFile(filename, (int)type); } bool wxBitmap::Create(int w, int h, int d) { - UnRef(); + UnRef(); - m_refData = new wxBitmapRefData; + m_refData = new wxBitmapRefData; - M_BITMAPDATA->m_width = w; - M_BITMAPDATA->m_height = h; - M_BITMAPDATA->m_depth = d; + GetBitmapData()->m_width = w; + GetBitmapData()->m_height = h; + GetBitmapData()->m_depth = d; - if (d > 0) - { - M_BITMAPDATA->m_hBitmap = (WXHBITMAP) CreateBitmap(w, h, 1, d, NULL); - } - else - { - HDC dc = GetDC((HWND) NULL); - M_BITMAPDATA->m_hBitmap = (WXHBITMAP) CreateCompatibleBitmap(dc, w, h); - ReleaseDC((HWND) 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; -} + HBITMAP hbmp; -bool wxBitmap::LoadFile(const wxString& filename, long type) -{ - UnRef(); - - m_refData = new wxBitmapRefData; + if ( d > 0 ) + { + hbmp = ::CreateBitmap(w, h, 1, d, NULL); + if ( !hbmp ) + { + wxLogLastError(wxT("CreateBitmap")); + } + } + else + { + ScreenHDC dc; + hbmp = ::CreateCompatibleBitmap(dc, w, h); + if ( !hbmp ) + { + wxLogLastError(wxT("CreateCompatibleBitmap")); + } - wxBitmapHandler *handler = FindHandler(type); + GetBitmapData()->m_depth = wxDisplayDepth(); + } - if ( handler == NULL ) { - wxLogWarning("no bitmap handler for type %d defined.", type); + SetHBITMAP((WXHBITMAP)hbmp); - return FALSE; - } +#if WXWIN_COMPATIBILITY_2 + GetBitmapData()->m_ok = hbmp != 0; +#endif // WXWIN_COMPATIBILITY_2 - return handler->LoadFile(this, filename, type, -1, -1); + return Ok(); } -bool wxBitmap::Create(void *data, long type, int width, int height, int depth) +bool wxBitmap::LoadFile(const wxString& filename, long type) { - UnRef(); + UnRef(); - m_refData = new wxBitmapRefData; + wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler); - wxBitmapHandler *handler = FindHandler(type); + if ( handler ) + { + m_refData = new wxBitmapRefData; - if ( handler == NULL ) { - wxLogWarning("no bitmap handler for type %d defined.", type); + return handler->LoadFile(this, filename, type, -1, -1); + } + else + { + wxImage image; + if ( !image.LoadFile( filename, type ) || !image.Ok() ) + return FALSE; - return FALSE; - } + *this = image.ConvertToBitmap(); - return handler->Create(this, data, type, width, height, depth); + return TRUE; + } } -bool wxBitmap::SaveFile(const wxString& filename, int type, const wxPalette *palette) +bool wxBitmap::Create(void *data, long type, int width, int height, int depth) { - wxBitmapHandler *handler = FindHandler(type); + UnRef(); - if ( handler == NULL ) { - wxLogWarning("no bitmap handler for type %d defined.", type); + wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler); - return FALSE; - } + if ( !handler ) + { + wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for type %d defined."), type); - return handler->SaveFile(this, filename, type, palette); -} + return FALSE; + } -void wxBitmap::SetWidth(int w) -{ - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + m_refData = new wxBitmapRefData; - M_BITMAPDATA->m_width = w; + return handler->Create(this, data, type, width, height, depth); } -void wxBitmap::SetHeight(int h) +bool wxBitmap::SaveFile(const wxString& filename, int type, const wxPalette *palette) { - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler); - M_BITMAPDATA->m_height = h; -} - -void wxBitmap::SetDepth(int d) -{ - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + if ( handler ) + { + return handler->SaveFile(this, filename, type, palette); + } + else + { + // FIXME what about palette? shouldn't we use it? + wxImage image( *this ); + if (!image.Ok()) + return FALSE; - M_BITMAPDATA->m_depth = d; + return image.SaveFile( filename, type ); + } } -void wxBitmap::SetQuality(int q) +// ---------------------------------------------------------------------------- +// sub bitmap extraction +// ---------------------------------------------------------------------------- + +wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const { - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + 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") ); - M_BITMAPDATA->m_quality = q; -} + wxBitmap ret( rect.width, rect.height, GetDepth() ); + wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") ); -void wxBitmap::SetOk(bool isOk) -{ - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + // copy bitmap data + HDC dcSrc = ::CreateCompatibleDC(NULL); + HDC dcDst = ::CreateCompatibleDC(NULL); + SelectObject(dcSrc, (HBITMAP) GetHBITMAP()); + SelectObject(dcDst, (HBITMAP) ret.GetHBITMAP()); + BitBlt(dcDst, 0, 0, rect.width, rect.height, dcSrc, rect.x, rect.y, SRCCOPY); - M_BITMAPDATA->m_ok = isOk; -} + // copy mask if there is one + if (GetMask()) + { + HBITMAP hbmpMask = ::CreateBitmap(rect.width, rect.height, 1, 1, 0); -void wxBitmap::SetPalette(const wxPalette& palette) -{ - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + SelectObject(dcSrc, (HBITMAP) GetMask()->GetMaskBitmap()); + SelectObject(dcDst, (HBITMAP) hbmpMask); + BitBlt(dcDst, 0, 0, rect.width, rect.height, dcSrc, rect.x, rect.y, SRCCOPY); - M_BITMAPDATA->m_bitmapPalette = palette ; -} + wxMask *mask = new wxMask((WXHBITMAP) hbmpMask); + ret.SetMask(mask); + } -void wxBitmap::SetMask(wxMask *mask) -{ - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + SelectObject(dcDst, NULL); + SelectObject(dcSrc, NULL); + DeleteDC(dcDst); + DeleteDC(dcSrc); - M_BITMAPDATA->m_bitmapMask = mask ; + return ret; } -void wxBitmap::SetHBITMAP(WXHBITMAP bmp) +// ---------------------------------------------------------------------------- +// wxBitmap accessors +// ---------------------------------------------------------------------------- + +void wxBitmap::SetQuality(int q) { - if (!M_BITMAPDATA) - m_refData = new wxBitmapRefData; + EnsureHasData(); - M_BITMAPDATA->m_hBitmap = bmp; + GetBitmapData()->m_quality = q; } -void wxBitmap::AddHandler(wxBitmapHandler *handler) +#if WXWIN_COMPATIBILITY_2 +void wxBitmap::SetOk(bool isOk) { - sm_handlers.Append(handler); -} + EnsureHasData(); -void wxBitmap::InsertHandler(wxBitmapHandler *handler) -{ - sm_handlers.Insert(handler); + GetBitmapData()->m_ok = isOk; } +#endif // WXWIN_COMPATIBILITY_2 -bool wxBitmap::RemoveHandler(const wxString& name) +void wxBitmap::SetPalette(const wxPalette& palette) { - wxBitmapHandler *handler = FindHandler(name); - if ( handler ) - { - sm_handlers.DeleteObject(handler); - return TRUE; - } - else - return FALSE; -} + EnsureHasData(); -wxBitmapHandler *wxBitmap::FindHandler(const wxString& name) -{ - wxNode *node = sm_handlers.First(); - while ( node ) - { - wxBitmapHandler *handler = (wxBitmapHandler *)node->Data(); - if ( (handler->GetName().Cmp(name) == 0) ) - return handler; - node = node->Next(); - } - return NULL; + GetBitmapData()->m_bitmapPalette = palette; } -wxBitmapHandler *wxBitmap::FindHandler(const wxString& extension, long bitmapType) +void wxBitmap::SetMask(wxMask *mask) { - wxNode *node = sm_handlers.First(); - while ( node ) - { - wxBitmapHandler *handler = (wxBitmapHandler *)node->Data(); - if ( (handler->GetExtension().Cmp(extension) == 0) && - (bitmapType == -1 || (handler->GetType() == bitmapType)) ) - return handler; - node = node->Next(); - } - return NULL; -} + EnsureHasData(); -wxBitmapHandler *wxBitmap::FindHandler(long bitmapType) -{ - wxNode *node = sm_handlers.First(); - while ( node ) - { - wxBitmapHandler *handler = (wxBitmapHandler *)node->Data(); - if (handler->GetType() == bitmapType) - return handler; - node = node->Next(); - } - return NULL; + GetBitmapData()->m_bitmapMask = mask; } -// 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); - // Creates a bitmap that matches the device context, from // an arbitray bitmap. At present, the original bitmap must have an // associated palette. TODO: use a default palette if no palette exists. @@ -384,26 +495,17 @@ static long freeDIB(LPBITMAPINFO lpDIBHeader); wxBitmap wxBitmap::GetBitmapForDC(wxDC& dc) const { wxMemoryDC memDC; - wxBitmap tmpBitmap(this->GetWidth(), this->GetHeight(), dc.GetDepth()); + wxBitmap tmpBitmap(GetWidth(), GetHeight(), dc.GetDepth()); HPALETTE hPal = (HPALETTE) NULL; LPBITMAPINFO lpDib; void *lpBits = (void*) NULL; -/* - wxASSERT( this->GetPalette() && this->GetPalette()->Ok() && (this->GetPalette()->GetHPALETTE() != 0) ); - - tmpBitmap.SetPalette(this->GetPalette()); - memDC.SelectObject(tmpBitmap); - memDC.SetPalette(this->GetPalette()); - - hPal = (HPALETTE) this->GetPalette()->GetHPALETTE(); -*/ - if( this->GetPalette() && this->GetPalette()->Ok() && (this->GetPalette()->GetHPALETTE() != 0) ) + if( GetPalette() && GetPalette()->Ok() ) { - tmpBitmap.SetPalette(* this->GetPalette()); + tmpBitmap.SetPalette(*GetPalette()); memDC.SelectObject(tmpBitmap); - memDC.SetPalette(* this->GetPalette()); - hPal = (HPALETTE) this->GetPalette()->GetHPALETTE(); + memDC.SetPalette(*GetPalette()); + hPal = (HPALETTE)GetPalette()->GetHPALETTE(); } else { @@ -415,27 +517,34 @@ wxBitmap wxBitmap::GetBitmapForDC(wxDC& dc) const memDC.SetPalette( 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; } -/* - * wxMask - */ +// ---------------------------------------------------------------------------- +// wxMask +// ---------------------------------------------------------------------------- -wxMask::wxMask(void) +wxMask::wxMask() { m_maskBitmap = 0; } @@ -445,7 +554,7 @@ 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 @@ -453,17 +562,17 @@ 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); @@ -472,30 +581,30 @@ wxMask::~wxMask(void) // Create a mask from a mono bitmap (copies the bitmap). bool wxMask::Create(const wxBitmap& bitmap) { + wxCHECK_MSG( bitmap.Ok() && bitmap.GetDepth() == 1, FALSE, + _T("can't create mask from invalid or not monochrome bitmap") ); + if ( m_maskBitmap ) - { - ::DeleteObject((HBITMAP) m_maskBitmap); - m_maskBitmap = 0; - } - if (!bitmap.Ok() || bitmap.GetDepth() != 1) - { - return FALSE; - } - m_maskBitmap = (WXHBITMAP) CreateBitmap( - bitmap.GetWidth(), - bitmap.GetHeight(), - 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; + { + ::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; } // Create a mask from a bitmap and a palette index indicating @@ -503,229 +612,169 @@ 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 (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); + } + } + return FALSE; } // Create a mask from a bitmap and a colour indicating // the transparent area bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) { + wxCHECK_MSG( bitmap.Ok(), FALSE, _T("invalid bitmap in wxMask::Create") ); + 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)); - } + ::DeleteObject((HBITMAP) m_maskBitmap); + m_maskBitmap = 0; } - } - ::SelectObject(srcDC, 0); - ::DeleteDC(srcDC); - ::SelectObject(destDC, 0); - ::DeleteDC(destDC); - return TRUE; -} -/* - * wxBitmapHandler - */ + int width = bitmap.GetWidth(), + height = bitmap.GetHeight(); -IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) + // scan the bitmap for the transparent colour and set the corresponding + // pixels in the mask to BLACK and the rest to WHITE + COLORREF maskColour = wxColourToRGB(colour); + m_maskBitmap = (WXHBITMAP)::CreateBitmap(width, height, 1, 1, 0); -bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap), void *WXUNUSED(data), long WXUNUSED(type), int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth)) -{ - return FALSE; -} + HDC srcDC = ::CreateCompatibleDC(NULL); + HDC destDC = ::CreateCompatibleDC(NULL); + if ( !srcDC || !destDC ) + { + wxLogLastError(wxT("CreateCompatibleDC")); + } -bool wxBitmapHandler::LoadFile(wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name), long WXUNUSED(type), - int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight)) -{ - return FALSE; -} + bool ok = TRUE; -bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name), int WXUNUSED(type), const wxPalette *WXUNUSED(palette)) -{ - return FALSE; -} + HGDIOBJ hbmpSrcOld = ::SelectObject(srcDC, GetHbitmapOf(bitmap)); + if ( !hbmpSrcOld ) + { + wxLogLastError(wxT("SelectObject")); -/* - * Standard handlers - */ + ok = FALSE; + } -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; - }; + HGDIOBJ hbmpDstOld = ::SelectObject(destDC, (HBITMAP)m_maskBitmap); + if ( !hbmpDstOld ) + { + wxLogLastError(wxT("SelectObject")); - virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags, - int desiredWidth, int desiredHeight); -}; -IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler) + ok = FALSE; + } -bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long WXUNUSED(flags), - int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight)) -{ - // TODO: load colourmap. - M_BITMAPHANDLERDATA->m_hBitmap = (WXHBITMAP) ::LoadBitmap(wxGetInstance(), name); - if (M_BITMAPHANDLERDATA->m_hBitmap) + // this is not very efficient, but I can't think of a better way of doing + // it + for ( int w = 0; ok && (w < width); w++ ) { - 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; - - if ( bitmap->IsKindOf(CLASSINFO(wxIcon)) ) + for ( int h = 0; ok && (h < height); h++ ) { + COLORREF col = GetPixel(srcDC, w, h); + if ( col == CLR_INVALID ) + { + wxLogLastError(wxT("GetPixel")); + + // doesn't make sense to continue + ok = FALSE; + + break; + } + + if ( col == maskColour ) + { + ::SetPixel(destDC, w, h, RGB(0, 0, 0)); + } + else + { + ::SetPixel(destDC, w, h, RGB(255, 255, 255)); + } } - - return TRUE; } - // it's probably not found - wxLogError("Can't load bitmap '%s' from resources! Check .rc file.", name.c_str()); + ::SelectObject(srcDC, hbmpSrcOld); + ::DeleteDC(srcDC); + ::SelectObject(destDC, hbmpDstOld); + ::DeleteDC(destDC); - return FALSE; + return ok; } -class WXDLLEXPORT wxBMPFileHandler: public wxBitmapHandler +// ---------------------------------------------------------------------------- +// wxBitmapHandler +// ---------------------------------------------------------------------------- + +bool wxBitmapHandler::Create(wxGDIImage *image, + void *data, + long flags, + int width, int height, int depth) { - DECLARE_DYNAMIC_CLASS(wxBMPFileHandler) -public: - inline wxBMPFileHandler(void) - { - m_name = "Windows bitmap file"; - m_extension = "bmp"; - m_type = wxBITMAP_TYPE_BMP; - }; + wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); - 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) + return bitmap ? Create(bitmap, data, width, height, depth) : FALSE; +} -bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long WXUNUSED(flags), - int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight)) +bool wxBitmapHandler::Load(wxGDIImage *image, + const wxString& name, + long flags, + int width, int height) { -#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) - { - delete palette; - palette = NULL; - } - if (palette) - { - M_BITMAPHANDLERDATA->m_bitmapPalette = *palette; - delete palette; - } - return success; -#else - return FALSE; -#endif + wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); + + return bitmap ? LoadFile(bitmap, name, flags, width, height) : FALSE; } -bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int WXUNUSED(type), const wxPalette *pal) +bool wxBitmapHandler::Save(wxGDIImage *image, + const wxString& name, + int type) { -#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 + wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); + + return bitmap ? SaveFile(bitmap, name, type) : FALSE; } -void wxBitmap::CleanUpHandlers(void) +bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap), + void *WXUNUSED(data), + long WXUNUSED(type), + int WXUNUSED(width), + int WXUNUSED(height), + int WXUNUSED(depth)) { - 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::LoadFile(wxBitmap *WXUNUSED(bitmap), + const wxString& WXUNUSED(name), + long WXUNUSED(type), + int WXUNUSED(desiredWidth), + int WXUNUSED(desiredHeight)) { - AddHandler(new wxBMPResourceHandler); - AddHandler(new wxBMPFileHandler); - - // Not added by default: include xpmhand.h in your app - // and call these in your wxApp::OnInit. -// AddHandler(new wxXPMFileHandler); -// AddHandler(new wxXPMDataHandler); + return FALSE; +} - AddHandler(new wxICOResourceHandler); - AddHandler(new wxICOFileHandler); +bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), + const wxString& WXUNUSED(name), + int WXUNUSED(type), + const wxPalette *WXUNUSED(palette)) +{ + return FALSE; } -static long createDIB(long xSize, long ySize, long bitsPerPixel, - HPALETTE hPal, LPBITMAPINFO* lpDIBHeader) +// ---------------------------------------------------------------------------- +// DIB functions +// ---------------------------------------------------------------------------- + +bool wxCreateDIB(long xSize, long ySize, long bitsPerPixel, + HPALETTE hPal, LPBITMAPINFO* lpDIBHeader) { unsigned long i, headerSize; LPBITMAPINFO lpDIBheader = NULL; @@ -739,10 +788,8 @@ 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; @@ -752,8 +799,7 @@ 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; @@ -767,21 +813,55 @@ static long createDIB(long xSize, long ySize, long bitsPerPixel, *lpDIBHeader = lpDIBheader; - - return (0); - + return TRUE; } +void wxFreeDIB(LPBITMAPINFO lpDIBHeader) +{ + free(lpDIBHeader); +} +// ---------------------------------------------------------------------------- +// other helper functions +// ---------------------------------------------------------------------------- -static long freeDIB(LPBITMAPINFO lpDIBHeader) +extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h) { + 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; +}