X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e42a6c18c42d211f9ae7dc171f195a626102b226..6bb09706724534c42465f9ecf46a4a7e7ff08c30:/src/msw/gdiimage.cpp diff --git a/src/msw/gdiimage.cpp b/src/msw/gdiimage.cpp index ae1820d19a..cba8189116 100644 --- a/src/msw/gdiimage.cpp +++ b/src/msw/gdiimage.cpp @@ -6,7 +6,7 @@ // Created: 20.11.99 // RCS-ID: $Id$ // Copyright: (c) 1999 Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -17,7 +17,7 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "gdiimage.h" #endif @@ -30,19 +30,45 @@ #ifndef WX_PRECOMP #include "wx/string.h" + #include "wx/log.h" #endif // WX_PRECOMP #include "wx/msw/private.h" #include "wx/app.h" -#include "wx/msw/dib.h" +#include "wx/bitmap.h" #include "wx/msw/gdiimage.h" +#if wxUSE_WXDIB +#include "wx/msw/dib.h" +#endif + +#ifdef __WXWINCE__ +#include +#include +#endif + +#include "wx/file.h" + +#include "wx/listimpl.cpp" +WX_DEFINE_LIST(wxGDIImageHandlerList); + +// ---------------------------------------------------------------------------- +// auxiliary functions +// ---------------------------------------------------------------------------- + +#ifdef __WXWINCE__ +// Used in wxBMPFileHandler::LoadFile +HBITMAP wxLoadBMP(const wxString& filename) ; +#endif + // ---------------------------------------------------------------------------- // private classes // ---------------------------------------------------------------------------- +#ifndef __WXMICROWIN__ + // all image handlers are declared/defined in this file because the outside // world doesn't have to know about them (but only about wxBITMAP_TYPE_XXX ids) @@ -98,14 +124,14 @@ public: int WXUNUSED(height), int WXUNUSED(depth) = 1) { - return FALSE; + return false; } virtual bool Save(wxGDIImage *WXUNUSED(image), const wxString& WXUNUSED(name), int WXUNUSED(type)) { - return FALSE; + return false; } virtual bool Load(wxGDIImage *image, @@ -114,7 +140,7 @@ public: int desiredWidth, int desiredHeight) { wxIcon *icon = wxDynamicCast(image, wxIcon); - wxCHECK_MSG( icon, FALSE, _T("wxIconHandler only works with icons") ); + wxCHECK_MSG( icon, false, _T("wxIconHandler only works with icons") ); return LoadIcon(icon, name, flags, desiredWidth, desiredHeight); } @@ -163,24 +189,23 @@ private: // wxWin macros // ---------------------------------------------------------------------------- -#if !USE_SHARED_LIBRARIES - IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler) - IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler) - IMPLEMENT_DYNAMIC_CLASS(wxICOFileHandler, wxGDIImageHandler) - IMPLEMENT_DYNAMIC_CLASS(wxICOResourceHandler, wxGDIImageHandler) -#endif +IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler) +IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler) +IMPLEMENT_DYNAMIC_CLASS(wxICOFileHandler, wxObject) +IMPLEMENT_DYNAMIC_CLASS(wxICOResourceHandler, wxObject) // ---------------------------------------------------------------------------- // private functions // ---------------------------------------------------------------------------- -static wxSize GetHiconSize(HICON hicon); +#endif + // __MICROWIN__ // ============================================================================ // implementation // ============================================================================ -wxList wxGDIImage::ms_handlers; +wxGDIImageHandlerList wxGDIImage::ms_handlers; // ---------------------------------------------------------------------------- // wxGDIImage functions forwarded to wxGDIImageRefData @@ -194,10 +219,10 @@ bool wxGDIImage::FreeResource(bool WXUNUSED(force)) GetGDIImageData()->m_handle = 0; } - return TRUE; + return true; } -WXHANDLE wxGDIImage::GetResourceHandle() +WXHANDLE wxGDIImage::GetResourceHandle() const { return GetHandle(); } @@ -222,21 +247,21 @@ bool wxGDIImage::RemoveHandler(const wxString& name) if ( handler ) { ms_handlers.DeleteObject(handler); - return TRUE; + return true; } else - return FALSE; + return false; } wxGDIImageHandler *wxGDIImage::FindHandler(const wxString& name) { - wxNode *node = ms_handlers.First(); + wxGDIImageHandlerList::compatibility_iterator node = ms_handlers.GetFirst(); while ( node ) { - wxGDIImageHandler *handler = (wxGDIImageHandler *)node->Data(); + wxGDIImageHandler *handler = node->GetData(); if ( handler->GetName() == name ) return handler; - node = node->Next(); + node = node->GetNext(); } return NULL; @@ -245,31 +270,31 @@ wxGDIImageHandler *wxGDIImage::FindHandler(const wxString& name) wxGDIImageHandler *wxGDIImage::FindHandler(const wxString& extension, long type) { - wxNode *node = ms_handlers.First(); + wxGDIImageHandlerList::compatibility_iterator node = ms_handlers.GetFirst(); while ( node ) { - wxGDIImageHandler *handler = (wxGDIImageHandler *)node->Data(); + wxGDIImageHandler *handler = node->GetData(); if ( (handler->GetExtension() = extension) && (type == -1 || handler->GetType() == type) ) { return handler; } - node = node->Next(); + node = node->GetNext(); } return NULL; } wxGDIImageHandler *wxGDIImage::FindHandler(long type) { - wxNode *node = ms_handlers.First(); + wxGDIImageHandlerList::compatibility_iterator node = ms_handlers.GetFirst(); while ( node ) { - wxGDIImageHandler *handler = (wxGDIImageHandler *)node->Data(); + wxGDIImageHandler *handler = node->GetData(); if ( handler->GetType() == type ) return handler; - node = node->Next(); + node = node->GetNext(); } return NULL; @@ -277,31 +302,29 @@ wxGDIImageHandler *wxGDIImage::FindHandler(long type) void wxGDIImage::CleanUpHandlers() { - wxNode *node = ms_handlers.First(); + wxGDIImageHandlerList::compatibility_iterator node = ms_handlers.GetFirst(); while ( node ) { - wxGDIImageHandler *handler = (wxGDIImageHandler *)node->Data(); - wxNode *next = node->Next(); + wxGDIImageHandler *handler = node->GetData(); + wxGDIImageHandlerList::compatibility_iterator next = node->GetNext(); delete handler; - delete node; + ms_handlers.Erase( node ); node = next; } } void wxGDIImage::InitStandardHandlers() { +#ifndef __WXMICROWIN__ 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); - AddHandler(new wxICOResourceHandler); AddHandler(new wxICOFileHandler); +#endif } +#ifndef __WXMICROWIN__ + // ---------------------------------------------------------------------------- // wxBitmap handlers // ---------------------------------------------------------------------------- @@ -314,27 +337,29 @@ bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap, // TODO: load colourmap. bitmap->SetHBITMAP((WXHBITMAP)::LoadBitmap(wxGetInstance(), name)); - wxBitmapRefData *data = bitmap->GetBitmapData(); - if ( bitmap->Ok() ) - { - BITMAP bm; - if ( !::GetObject(GetHbitmapOf(*bitmap), sizeof(BITMAP), (LPSTR) &bm) ) - { - wxLogLastError("GetObject(HBITMAP)"); - } - - data->m_width = bm.bmWidth; - data->m_height = bm.bmHeight; - data->m_depth = bm.bmBitsPixel; - } - else + if ( !bitmap->Ok() ) { // it's probably not found wxLogError(wxT("Can't load bitmap '%s' from resources! Check .rc file."), name.c_str()); + + return false; + } + + BITMAP bm; + if ( !::GetObject(GetHbitmapOf(*bitmap), sizeof(BITMAP), (LPSTR) &bm) ) + { + wxLogLastError(wxT("GetObject(HBITMAP)")); } - return bitmap->Ok(); + bitmap->SetWidth(bm.bmWidth); + bitmap->SetHeight(bm.bmHeight); + bitmap->SetDepth(bm.bmBitsPixel); + + // use 0xc0c0c0 as transparent colour by default + bitmap->SetMask(new wxMask(*bitmap, *wxLIGHT_GREY)); + + return true; } bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap, @@ -342,35 +367,36 @@ bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap, int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight)) { -#if wxUSE_IMAGE_LOADING_IN_MSW - wxPalette *palette = NULL; - bool success = wxLoadIntoBitmap(WXSTRINGCAST name, bitmap, &palette) != 0; - if ( success && palette ) - { - bitmap->SetPalette(*palette); - } +#if wxUSE_WXDIB + wxCHECK_MSG( bitmap, false, _T("NULL bitmap in LoadFile") ); - // it was copied by the bitmap if it was loaded successfully - delete palette; + wxDIB dib(name); - return success; + bool ok = dib.IsOk() && bitmap->CopyFromDIB(dib); + return ok; #else - return FALSE; + WXHBITMAP hBitmap = (WXHBITMAP)wxLoadBMP(name); + if(hBitmap) { + bitmap->SetHBITMAP(hBitmap); + return true; + } + return false; #endif } bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int WXUNUSED(type), - const wxPalette *pal) + const wxPalette * WXUNUSED(pal)) { -#if wxUSE_IMAGE_LOADING_IN_MSW - wxPalette *actualPalette = (wxPalette *)pal; - if ( !actualPalette ) - actualPalette = bitmap->GetPalette(); - return wxSaveBitmap(WXSTRINGCAST name, bitmap, actualPalette) != 0; +#if wxUSE_WXDIB + wxCHECK_MSG( bitmap, false, _T("NULL bitmap in SaveFile") ); + + wxDIB dib(*bitmap); + + return dib.Save(name); #else - return FALSE; + return false; #endif } @@ -380,83 +406,173 @@ bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap, bool wxICOFileHandler::LoadIcon(wxIcon *icon, const wxString& name, - long flags, + long WXUNUSED(flags), int desiredWidth, int desiredHeight) { -#if wxUSE_RESOURCE_LOADING_IN_MSW icon->UnRef(); // actual size wxSize size; -#ifdef __WIN32__ - HICON hicon = ::ExtractIcon(wxGetInstance(), name, 0 /* first */); + HICON hicon = NULL; + + // Parse the filename: it may be of the form "filename;n" in order to + // specify the nth icon in the file. + // + // For the moment, ignore the issue of possible semicolons in the + // filename. + int iconIndex = 0; + wxString nameReal(name); + wxString strIconIndex = name.AfterLast(wxT(';')); + if (strIconIndex != name) + { + iconIndex = wxAtoi(strIconIndex); + nameReal = name.BeforeLast(wxT(';')); + } + +#if 0 + // If we don't know what size icon we're looking for, + // try to find out what's there. + // Unfortunately this doesn't work, because ExtractIconEx + // will scale the icon to the 'desired' size, even if that + // size of icon isn't explicitly stored. So we would have + // to parse the icon file outselves. + if ( desiredWidth == -1 && + desiredHeight == -1) + { + // Try loading a large icon first + if ( ::ExtractIconEx(nameReal, iconIndex, &hicon, NULL, 1) == 1) + { + } + // Then try loading a small icon + else if ( ::ExtractIconEx(nameReal, iconIndex, NULL, &hicon, 1) == 1) + { + } + } + else +#endif + // were we asked for a large icon? + if ( desiredWidth == ::GetSystemMetrics(SM_CXICON) && + desiredHeight == ::GetSystemMetrics(SM_CYICON) ) + { + // get the specified large icon from file + if ( !::ExtractIconEx(nameReal, iconIndex, &hicon, NULL, 1) ) + { + // it is not an error, but it might still be useful to be informed + // about it optionally + wxLogTrace(_T("iconload"), + _T("No large icons found in the file '%s'."), + name.c_str()); + } + } + else if ( desiredWidth == ::GetSystemMetrics(SM_CXSMICON) && + desiredHeight == ::GetSystemMetrics(SM_CYSMICON) ) + { + // get the specified small icon from file + if ( !::ExtractIconEx(nameReal, iconIndex, NULL, &hicon, 1) ) + { + wxLogTrace(_T("iconload"), + _T("No small icons found in the file '%s'."), + name.c_str()); + } + } + //else: not standard size, load below + +#ifndef __WXWINCE__ + if ( !hicon ) + { + // take any size icon from the file by index + hicon = ::ExtractIcon(wxGetInstance(), nameReal, iconIndex); + } +#endif + if ( !hicon ) { wxLogSysError(_T("Failed to load icon from the file '%s'"), name.c_str()); - return FALSE; + return false; } - size = GetHiconSize(hicon); -#else // Win16 - HICON hicon = ReadIconFile((wxChar *)name.c_str(), - wxGetInstance(), - &size.x, &size.y); -#endif // Win32/Win16 + size = wxGetHiconSize(hicon); if ( (desiredWidth != -1 && desiredWidth != size.x) || (desiredHeight != -1 && desiredHeight != size.y) ) { - wxLogDebug(_T("Returning FALSE from wxICOFileHandler::Load because " - "of the size mismatch: actual (%d, %d), " - "requested (%d, %d)"), - size.x, size.y, - desiredWidth, desiredHeight); + wxLogTrace(_T("iconload"), + _T("Returning false from wxICOFileHandler::Load because of the size mismatch: actual (%d, %d), requested (%d, %d)"), + size.x, size.y, + desiredWidth, desiredHeight); ::DestroyIcon(hicon); - return FALSE; + return false; } icon->SetHICON((WXHICON)hicon); icon->SetSize(size.x, size.y); return icon->Ok(); -#else - return FALSE; -#endif } bool wxICOResourceHandler::LoadIcon(wxIcon *icon, const wxString& name, - long flags, + long WXUNUSED(flags), int desiredWidth, int desiredHeight) { HICON hicon; -#if defined(__WIN32__) && !defined(__SC__) - if ( desiredWidth != -1 && desiredHeight != -1 ) + // do we need the icon of the specific size or would any icon do? + bool hasSize = desiredWidth != -1 || desiredHeight != -1; + + wxASSERT_MSG( !hasSize || (desiredWidth != -1 && desiredHeight != -1), + _T("width and height should be either both -1 or not") ); + + // try to load the icon from this program first to allow overriding the + // standard icons (although why one would want to do it considering that + // we already have wxApp::GetStdIcon() is unclear) + + // note that we can't just always call LoadImage() because it seems to do + // some icon rescaling internally which results in very ugly 16x16 icons + if ( hasSize ) { hicon = (HICON)::LoadImage(wxGetInstance(), name, IMAGE_ICON, desiredWidth, desiredHeight, LR_DEFAULTCOLOR); } else -#endif // Win32 { hicon = ::LoadIcon(wxGetInstance(), name); } - wxSize size = GetHiconSize(hicon); - icon->SetSize(size.x, size.y); - - // Override the found values with desired values - if ( desiredWidth > -1 && desiredHeight > -1 ) + // next check if it's not a standard icon +#ifndef __WXWINCE__ + if ( !hicon && !hasSize ) { - icon->SetSize(desiredWidth, desiredHeight); + static const struct + { + const wxChar *name; + LPTSTR id; + } stdIcons[] = + { + { wxT("wxICON_QUESTION"), IDI_QUESTION }, + { wxT("wxICON_WARNING"), IDI_EXCLAMATION }, + { wxT("wxICON_ERROR"), IDI_HAND }, + { wxT("wxICON_INFORMATION"), IDI_ASTERISK }, + }; + + for ( size_t nIcon = 0; !hicon && nIcon < WXSIZEOF(stdIcons); nIcon++ ) + { + if ( name == stdIcons[nIcon].name ) + { + hicon = ::LoadIcon((HINSTANCE)NULL, stdIcons[nIcon].id); + } + } } +#endif + + wxSize size = wxGetHiconSize(hicon); + icon->SetSize(size.x, size.y); icon->SetHICON((WXHICON)hicon); @@ -467,18 +583,19 @@ bool wxICOResourceHandler::LoadIcon(wxIcon *icon, // private functions // ---------------------------------------------------------------------------- -static wxSize GetHiconSize(HICON hicon) +wxSize wxGetHiconSize(HICON hicon) { - wxSize size(32, 32); // default + // default icon size on this hardware + // usually 32x32 but can be other (smaller) on pocket devices + wxSize size(::GetSystemMetrics(SM_CXICON), ::GetSystemMetrics(SM_CYICON)); -#ifdef __WIN32__ - // Win32s doesn't have GetIconInfo function... +#ifndef __WXWINCE__ if ( hicon && wxGetOsVersion() != wxWIN32S ) { ICONINFO info; if ( !::GetIconInfo(hicon, &info) ) { - wxLogLastError("GetIconInfo"); + wxLogLastError(wxT("GetIconInfo")); } else { @@ -497,7 +614,88 @@ static wxSize GetHiconSize(HICON hicon) ::DeleteObject(info.hbmColor); } } +#else + wxUnusedVar(hicon); #endif - return size; } + +#endif // __WXMICROWIN__ + +#ifdef __WXWINCE__ +// Used in wxBMPFileHandler::LoadFile +HBITMAP wxLoadBMP(const wxString& filename) +{ + wxFile file; + if(!file.Open(filename)) + return 0; + + // The first part of the file contains the file header. + // This will tell us if it is a bitmap, how big the header is, and how big + // the file is. The header size in the file header includes the color table. + BITMAPFILEHEADER BmpFileHdr; + BITMAPINFO *pBmpInfo = (BITMAPINFO*)malloc(sizeof(BITMAPINFO)+255*sizeof(RGBQUAD)); + BYTE* pBits = 0; + HBITMAP hBitmap = 0; + + if(file.Read(&BmpFileHdr, sizeof(BmpFileHdr))==sizeof(BmpFileHdr) + && !strncmp((char*)&BmpFileHdr.bfType,"BM",2) + && file.Read(pBmpInfo, sizeof(BITMAPINFOHEADER))==sizeof(BITMAPINFOHEADER) + && pBmpInfo->bmiHeader.biSize == sizeof(BITMAPINFOHEADER)) { + + + unsigned int nColors = pBmpInfo->bmiHeader.biClrUsed ? + pBmpInfo->bmiHeader.biClrUsed : 1 << pBmpInfo->bmiHeader.biBitCount; + if (nColors < 1 + || file.Read(pBmpInfo->bmiColors, nColors * sizeof(RGBQUAD)) + == (off_t)(nColors * sizeof(RGBQUAD))) { + + // So how big the bitmap surface is. + int nBitsSize = BmpFileHdr.bfSize - BmpFileHdr.bfOffBits; + + // Allocate the memory for the bits and read the bits from the file. + pBits = (BYTE*) malloc(nBitsSize*2); + if (pBits) { + // Seek to the bits in the file. + file.Seek(BmpFileHdr.bfOffBits); + + // read the bits + if(file.Read(pBits, nBitsSize)==nBitsSize) { + // Everything went OK. + pBmpInfo->bmiHeader.biSizeImage = nBitsSize; + + //HBITMAP hBitmap=SetBitmap((LPBITMAPINFO)pBmpInfo, pBits); + //DWORD dwBitmapInfoSize = sizeof(BITMAPINFO) + nColors*sizeof(RGBQUAD); + + // Create a DC which will be used to get DIB, then create DIBsection + HDC hDC = ::GetDC(NULL); + if (hDC) { + LPVOID bits; + hBitmap = CreateDIBSection(hDC, (const BITMAPINFO*) pBmpInfo, + DIB_RGB_COLORS, &bits, NULL, 0); + ReleaseDC(0,hDC); + + if (hBitmap) { + DWORD dwImageSize = pBmpInfo->bmiHeader.biSizeImage; + if (dwImageSize == 0) { + int nBytesPerLine = pBmpInfo->bmiHeader.biWidth * pBmpInfo->bmiHeader.biBitCount; + nBytesPerLine = ( (nBytesPerLine + 31) & (~31) ) / 8; + dwImageSize = nBytesPerLine * pBmpInfo->bmiHeader.biHeight; + } + memcpy(bits, pBits, dwImageSize); + } + } + } + } + } + } + + if(pBmpInfo) + free(pBmpInfo); + if(pBits) + free(pBits); + + return hBitmap; +} +#endif +