From b4eb4c6b55e7618095682468a0edfa7193edb421 Mon Sep 17 00:00:00 2001 From: David Webster Date: Fri, 17 Dec 1999 13:39:24 +0000 Subject: [PATCH] New image base classes for wxOS2 git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5013 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- src/os2/gdiimage.cpp | 567 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 567 insertions(+) create mode 100644 src/os2/gdiimage.cpp diff --git a/src/os2/gdiimage.cpp b/src/os2/gdiimage.cpp new file mode 100644 index 0000000000..fcc9d4a18b --- /dev/null +++ b/src/os2/gdiimage.cpp @@ -0,0 +1,567 @@ +/////////////////////////////////////////////////////////////////////////////// +// Name: msw/gdiimage.cpp +// Purpose: wxGDIImage implementation +// Author: Vadim Zeitlin +// Modified by: +// Created: 20.11.99 +// RCS-ID: $Id$ +// Copyright: (c) 1999 Vadim Zeitlin +// Licence: wxWindows license +/////////////////////////////////////////////////////////////////////////////// + +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + + +#ifndef WX_PRECOMP + #include "wx/string.h" +#endif // WX_PRECOMP + +#include "wx/os2/private.h" + +#include "wx/app.h" + +#include "wx/os2/gdiimage.h" + +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- + +// 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) + +class WXDLLEXPORT wxBMPFileHandler : public wxBitmapHandler +{ +public: + wxBMPFileHandler() : wxBitmapHandler(_T("Windows bitmap file"), _T("bmp"), + wxBITMAP_TYPE_BMP) + { + } + + virtual bool LoadFile( wxBitmap* pBitmap + ,const wxString& rName + ,HPS hPs + ,long lFlags + ,int nDesiredWidth + ,int nDesiredHeight + ); + virtual bool SaveFile( wxBitmap* pBitmap + ,const wxString& rName + ,int lType + ,const wxPalette* pPalette = NULL + ); + +private: + DECLARE_DYNAMIC_CLASS(wxBMPFileHandler) +}; + +class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler +{ +public: + wxBMPResourceHandler() : wxBitmapHandler(_T("Windows bitmap resource"), + wxEmptyString, + wxBITMAP_TYPE_BMP_RESOURCE) + { + } + + virtual bool LoadFile( wxBitmap* pBitmap + ,const wxString& rName + ,HPS hPs + ,long lFlags + ,int nDesiredWidth + ,int nDesiredHeight + ); + +private: + DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler) +}; + +class WXDLLEXPORT wxIconHandler : public wxGDIImageHandler +{ +public: + wxIconHandler( const wxString& rName + ,const wxString& rExt + ,long lType + ) : wxGDIImageHandler( rName + ,rExt + ,lType + ) + { + } + + // creating and saving icons is not supported + virtual bool Create( wxGDIImage* WXUNUSED(pImage) + ,void* WXUNUSED(pData) + ,long WXUNUSED(lFlags) + ,int WXUNUSED(nWidth) + ,int WXUNUSED(nHeight) + ,int WXUNUSED(nDepth) = 1 + ) + { + return(FALSE); + } + + virtual bool Save( wxGDIImage* WXUNUSED(pImage) + ,const wxString& WXUNUSED(rName) + ,int WXUNUSED(nType) + ) + { + return(FALSE); + } + virtual bool Load( wxGDIImage* pImage + ,const wxString& rName + ,HPS hPs + ,long lFlags + ,int nDesiredWidth + ,int nDesiredHeight + ) + { + wxIcon* pIcon = wxDynamicCast(pImage, wxIcon); + wxCHECK_MSG(pIcon, FALSE, _T("wxIconHandler only works with icons")); + + return LoadIcon( pIcon + ,rName + ,hPs + ,lFlags + ,nDesiredWidth + ,nDesiredHeight + ); + } + +protected: + virtual bool LoadIcon( wxIcon* pIcon + ,const wxString& rName + ,HPS hPs + ,long lFlags + ,int nDesiredWidth = -1 + ,int nDesiredHeight = -1 + ) = 0; +}; + +class WXDLLEXPORT wxICOFileHandler : public wxIconHandler +{ +public: + wxICOFileHandler() : wxIconHandler(_T("ICO icon file"), + _T("ico"), + wxBITMAP_TYPE_ICO) + { + } + + virtual bool LoadIcon( wxIcon * pIcon + ,const wxString& rName + ,HPS hPs + ,long lFlags + ,int nDesiredWidth = -1 + ,int nDesiredHeight = -1 + ); + +private: + DECLARE_DYNAMIC_CLASS(wxICOFileHandler) +}; + +class WXDLLEXPORT wxICOResourceHandler: public wxIconHandler +{ +public: + wxICOResourceHandler() : wxIconHandler(_T("ICO resource"), + _T("ico"), + wxBITMAP_TYPE_ICO_RESOURCE) + { + } + + virtual bool LoadIcon( wxIcon* pIcon + ,const wxString& rName + ,HPS hPs + ,long lFlags + ,int nDesiredWidth = -1 + ,int nDesiredHeight = -1 + ); + +private: + DECLARE_DYNAMIC_CLASS(wxICOResourceHandler) +}; + +// ---------------------------------------------------------------------------- +// 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 + +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +static wxSize GetHiconSize(WXHICON hicon); + +// ============================================================================ +// implementation +// ============================================================================ + +wxList wxGDIImage::ms_handlers; + +// ---------------------------------------------------------------------------- +// wxGDIImage functions forwarded to wxGDIImageRefData +// ---------------------------------------------------------------------------- + +bool wxGDIImage::FreeResource( + bool WXUNUSED(bForce) +) +{ + if ( !IsNull() ) + { + GetGDIImageData()->Free(); + GetGDIImageData()->m_hHandle = 0; + } + + return(TRUE); +} + +WXHANDLE wxGDIImage::GetResourceHandle() +{ + return GetHandle(); +} + +// ---------------------------------------------------------------------------- +// wxGDIImage handler stuff +// ---------------------------------------------------------------------------- + +void wxGDIImage::AddHandler( + wxGDIImageHandler* pHandler +) +{ + ms_handlers.Append(pHandler); +} + +void wxGDIImage::InsertHandler( + wxGDIImageHandler* pHandler +) +{ + ms_handlers.Insert(pHandler); +} + +bool wxGDIImage::RemoveHandler( + const wxString& rName +) +{ + wxGDIImageHandler* pHandler = FindHandler(rName); + + if (pHandler) + { + ms_handlers.DeleteObject(pHandler); + return(TRUE); + } + else + return(FALSE); +} + +wxGDIImageHandler* wxGDIImage::FindHandler( + const wxString& rName +) +{ + wxNode* pNode = ms_handlers.First(); + + while (pNode) + { + wxGDIImageHandler* pHandler = (wxGDIImageHandler *)pNode->Data(); + + if (pHandler->GetName() == rName) + return(pHandler); + pNode = pNode->Next(); + } + return(NULL); +} + +wxGDIImageHandler* wxGDIImage::FindHandler( + const wxString& rExtension +, long lType +) +{ + wxNode* pNode = ms_handlers.First(); + + while (pNode) + { + wxGDIImageHandler* pHandler = (wxGDIImageHandler *)pNode->Data(); + + if ((pHandler->GetExtension() = rExtension) && + (lType == -1 || pHandler->GetType() == lType)) + { + return(pHandler); + } + pNode = pNode->Next(); + } + return(NULL); +} + +wxGDIImageHandler* wxGDIImage::FindHandler( + long lType +) +{ + wxNode* pNode = ms_handlers.First(); + + while (pNode) + { + wxGDIImageHandler* pHandler = (wxGDIImageHandler *)pNode->Data(); + + if (pHandler->GetType() == lType) + return pHandler; + pNode = pNode->Next(); + } + return(NULL); +} + +void wxGDIImage::CleanUpHandlers() +{ + wxNode* pNode = ms_handlers.First(); + + while (pNode) + { + wxGDIImageHandler* pHandler = (wxGDIImageHandler *)pNode->Data(); + wxNode* pNext = pNode->Next(); + + delete pHandler; + delete pNode; + pNode = pNext; + } +} + +void wxGDIImage::InitStandardHandlers() +{ + 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); +} + +// ---------------------------------------------------------------------------- +// wxBitmap handlers +// ---------------------------------------------------------------------------- + +bool wxBMPResourceHandler::LoadFile( + wxBitmap* pBitmap +, const wxString& rName +, HPS hPs +, long lFlags +, int nDesiredWidth +, int nDesiredHeight +) +{ + // TODO: load a bitmap from a file + /* + rBitmap->SetHBITMAP((WXHBITMAP)::LoadBitmap(wxGetInstance(), rName)); + + wxBitmapRefData* pData = bitmap->GetBitmapData(); + + if (pBitmap->Ok()) + { + BITMAP bm; + + if ( !::GetObject(GetHbitmapOf(*pBitmap), sizeof(BITMAP), (LPSTR) &bm) ) + { + wxLogLastError("GetObject(HBITMAP)"); + } + + data->m_width = bm.bmWidth; + data->m_height = bm.bmHeight; + data->m_depth = bm.bmBitsPixel; + } + else + { + // it's probably not found + wxLogError(wxT("Can't load bitmap '%s' from resources! Check .rc file."), + name.c_str()); + } + + return bitmap->Ok(); + */ + return(FALSE); +} + +bool wxBMPFileHandler::LoadFile( + wxBitmap* pBitmap +, const wxString& rName +, HPS hPs +, long WXUNUSED(lFlags) +, int WXUNUSED(nDesiredWidth) +, int WXUNUSED(nDesiredHeight) +) +{ +#if wxUSE_IMAGE_LOADING_IN_OS2 + wxPalette* pPalette = NULL; + + bool bSuccess = FALSE; /* wxLoadIntoBitmap( WXSTRINGCAST rName + ,pBitmap + ,&pPalette + ) != 0; */ + if (bSuccess && pPalette) + { + pBitmap->SetPalette(*pPalette); + } + + // it was copied by the bitmap if it was loaded successfully + delete pPalette; + + return(bSuccess); +#else + return(FALSE); +#endif +} + +bool wxBMPFileHandler::SaveFile( + wxBitmap* pBitmap +, const wxString& rName +, int WXUNUSED(nType) +, const wxPalette* pPal +) +{ +#if wxUSE_IMAGE_LOADING_IN_OS2 + wxPalette* pActualPalette = (wxPalette *)pPal; + + if (!pActualPalette) + pActualPalette = pBitmap->GetPalette(); + /* return(wxSaveBitmap( WXSTRINGCAST rName + ,pBitmap + ,pActualPalette + ) != 0); */ + return(FALSE); +#else + return(FALSE); +#endif +} + +// ---------------------------------------------------------------------------- +// wxIcon handlers +// ---------------------------------------------------------------------------- + +bool wxICOFileHandler::LoadIcon( + wxIcon* pIcon +, const wxString& rName +, HPS hPs +, long lFlags +, int nDesiredWidth +, int nDesiredHeight +) +{ +#if wxUSE_RESOURCE_LOADING_IN_OS2 + pIcon->UnRef(); + + // actual size + wxSize vSize; + + // TODO: load icon directly from a file + /* +#ifdef __WIN32__ + HICON hicon = ::ExtractIcon(wxGetInstance(), name, first); + if ( !hicon ) + { + wxLogSysError(_T("Failed to load icon from the file '%s'"), + name.c_str()); + + return FALSE; + } + + size = GetHiconSize(hicon); +#else // Win16 + HICON hicon = ReadIconFile((wxChar *)name.c_str(), + wxGetInstance(), + &size.x, &size.y); +#endif // Win32/Win16 + + 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); + + ::DestroyIcon(hicon); + + return FALSE; + } + + icon->SetHICON((WXHICON)hicon); + icon->SetSize(size.x, size.y); + + return icon->Ok(); + */ + return(FALSE); +#else + return(FALSE); +#endif +} + +bool wxICOResourceHandler::LoadIcon( + wxIcon* pIcon +, const wxString& rName +, HPS hPs +, long lFlags +, int nDesiredWidth +, int nDesiredHeight +) +{ + // TODO: load icon from a file + /* + HICON hicon; + +#if defined(__WIN32__) && !defined(__SC__) + if ( desiredWidth != -1 && desiredHeight != -1 ) + { + 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 ) + { + icon->SetSize(desiredWidth, desiredHeight); + } + + icon->SetHICON((WXHICON)hicon); + + return icon->Ok(); + */ + return(FALSE); +} + +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +static wxSize GetHiconSize( + WXHICON hicon +) +{ + wxSize vSize(32, 32); // default + + // all OS/2 icons are 32x32 + return(vSize); +} +