Files
wxWidgets/src/os2/gdiimage.cpp
2006-04-28 12:44:37 +00:00

482 lines
16 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: src/os2/gdiimage.cpp
// Purpose: wxGDIImage implementation
// Author: Vadim Zeitlin
// Modified by:
// Created: 20.11.99
// RCS-ID: $Id$
// Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifndef WX_PRECOMP
#include "wx/string.h"
#include "wx/app.h"
#endif // WX_PRECOMP
#include "wx/os2/private.h"
#include "wx/os2/gdiimage.h"
#include "wx/listimpl.cpp"
WX_DEFINE_LIST(wxGDIImageHandlerList)
// ----------------------------------------------------------------------------
// 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:
inline virtual bool LoadFile( wxBitmap* pBitmap
,int nId
,long lFlags
,int nDesiredWidth
,int nDesiredHeight
)
{
return wxBitmapHandler::LoadFile( pBitmap
,nId
,lFlags
,nDesiredWidth
,nDesiredHeight
);
}
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
,int nId
,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;
private:
inline virtual bool Load( wxGDIImage* WXUNUSED(pImage),
int WXUNUSED(nId),
long WXUNUSED(lFlags),
int WXUNUSED(nDesiredWidth),
int WXUNUSED(nDesiredHeight) )
{
return false;
}
};
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
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler)
IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
IMPLEMENT_DYNAMIC_CLASS(wxICOFileHandler, wxObject)
IMPLEMENT_DYNAMIC_CLASS(wxICOResourceHandler, wxObject)
// ============================================================================
// implementation
// ============================================================================
wxGDIImageHandlerList 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
)
{
wxGDIImageHandlerList::compatibility_iterator pNode = ms_handlers.GetFirst();
while ( pNode )
{
wxGDIImageHandler* pHandler = pNode->GetData();
if ( pHandler->GetName() == rName )
return pHandler;
pNode = pNode->GetNext();
}
return((wxGDIImageHandler*)NULL);
}
wxGDIImageHandler* wxGDIImage::FindHandler(
const wxString& rExtension
, long lType
)
{
wxGDIImageHandlerList::compatibility_iterator pNode = ms_handlers.GetFirst();
while ( pNode )
{
wxGDIImageHandler* pHandler = pNode->GetData();
if ( (pHandler->GetExtension() = rExtension) &&
(lType == -1 || pHandler->GetType() == lType) )
{
return pHandler;
}
pNode = pNode->GetNext();
}
return((wxGDIImageHandler*)NULL);
}
wxGDIImageHandler* wxGDIImage::FindHandler(
long lType
)
{
wxGDIImageHandlerList::compatibility_iterator pNode = ms_handlers.GetFirst();
while ( pNode )
{
wxGDIImageHandler* pHandler = pNode->GetData();
if ( pHandler->GetType() == lType )
return pHandler;
pNode = pNode->GetNext();
}
return((wxGDIImageHandler*)NULL);
}
void wxGDIImage::CleanUpHandlers()
{
wxGDIImageHandlerList::compatibility_iterator pNode = ms_handlers.GetFirst();
while ( pNode )
{
wxGDIImageHandler* pHandler = pNode->GetData();
wxGDIImageHandlerList::compatibility_iterator pNext = pNode->GetNext();
delete pHandler;
ms_handlers.Erase( pNode );
pNode = pNext;
}
}
void wxGDIImage::InitStandardHandlers()
{
AddHandler(new wxBMPResourceHandler);
AddHandler(new wxBMPFileHandler);
AddHandler(new wxICOResourceHandler);
AddHandler(new wxICOFileHandler);
}
// ----------------------------------------------------------------------------
// wxBitmap handlers
// ----------------------------------------------------------------------------
bool wxBMPResourceHandler::LoadFile( wxBitmap* pBitmap,
int nId,
long WXUNUSED(lFlags),
int WXUNUSED(nDesiredWidth),
int WXUNUSED(nDesiredHeight) )
{
SIZEL vSize = {0, 0};
DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
HDC hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
HPS hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
pBitmap->SetHBITMAP((WXHBITMAP)::GpiLoadBitmap( hPS
,NULLHANDLE
,nId
,0
,0
));
::GpiDestroyPS(hPS);
::DevCloseDC(hDC);
wxBitmapRefData* pData = pBitmap->GetBitmapData();
if ( pBitmap->Ok() )
{
BITMAPINFOHEADER vBmph;
::GpiQueryBitmapParameters(GetHbitmapOf(*pBitmap), &vBmph);
pData->m_nWidth = vBmph.cx;
pData->m_nHeight = vBmph.cy;
pData->m_nDepth = vBmph.cBitCount;
}
return(pBitmap->Ok());
} // end of wxBMPResourceHandler::LoadFile
bool wxBMPFileHandler::LoadFile( wxBitmap* pBitmap,
const wxString& WXUNUSED(rName),
HPS WXUNUSED(hPs),
long WXUNUSED(lFlags),
int WXUNUSED(nDesiredWidth),
int WXUNUSED(nDesiredHeight) )
{
#if defined(wxUSE_IMAGE_LOADING_IN_OS2) && 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
wxUnusedVar(pBitmap);
return false;
#endif
}
bool wxBMPFileHandler::SaveFile( wxBitmap* pBitmap,
const wxString& WXUNUSED(rName),
int WXUNUSED(nType),
const wxPalette* pPal )
{
#if defined(wxUSE_IMAGE_LOADING_IN_OS2) && wxUSE_IMAGE_LOADING_IN_OS2
wxPalette* pActualPalette = (wxPalette *)pPal;
if (!pActualPalette)
pActualPalette = pBitmap->GetPalette();
/* return(wxSaveBitmap( WXSTRINGCAST rName
,pBitmap
,pActualPalette
) != 0); */
return false;
#else
wxUnusedVar(pBitmap);
wxUnusedVar(pPal);
return false;
#endif
}
// ----------------------------------------------------------------------------
// wxIcon handlers
// ----------------------------------------------------------------------------
bool wxICOFileHandler::LoadIcon( wxIcon* pIcon,
const wxString& WXUNUSED(rName),
HPS WXUNUSED(hPs),
long WXUNUSED(lFlags),
int WXUNUSED(nDesiredWidth),
int WXUNUSED(nDesiredHeight) )
{
#if defined(wxUSE_RESOURCE_LOADING_IN_OS2) && wxUSE_RESOURCE_LOADING_IN_OS2
pIcon->UnRef();
return false;
#else
wxUnusedVar(pIcon);
return false;
#endif
}
bool wxICOResourceHandler::LoadIcon( wxIcon* pIcon,
const wxString& rName,
HPS WXUNUSED(hPs),
long WXUNUSED(lFlags),
int WXUNUSED(nDesiredWidth),
int WXUNUSED(nDesiredHeight) )
{
HPOINTER hIcon;
hIcon = ::WinLoadFileIcon( (PSZ)rName.c_str()
,TRUE // load for private use
);
pIcon->SetSize(32, 32); // all OS/2 icons are 32 x 32
pIcon->SetHICON((WXHICON)hIcon);
return pIcon->Ok();
} // end of wxICOResourceHandler::LoadIcon