src/os2/gdiimage.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/gdiimage.cpp
   3 // Purpose:     wxGDIImage implementation
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     20.11.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "gdiimage.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27
  28 #ifndef WX_PRECOMP
  29     #include "wx/string.h"
  30 #endif // WX_PRECOMP
  31
  32 #include "wx/os2/private.h"
  33 #include "wx/app.h"
  34 #include "wx/os2/gdiimage.h"
  35
  36 #include "wx/listimpl.cpp"
  37 WX_DEFINE_LIST(wxGDIImageHandlerList);
  38
  39 // ----------------------------------------------------------------------------
  40 // private classes
  41 // ----------------------------------------------------------------------------
  42
  43 // all image handlers are declared/defined in this file because the outside
  44 // world doesn't have to know about them (but only about wxBITMAP_TYPE_XXX ids)
  45
  46 class WXDLLEXPORT wxBMPFileHandler : public wxBitmapHandler
  47 {
  48 public:
  49     wxBMPFileHandler() : wxBitmapHandler(_T("Windows bitmap file"), _T("bmp"),
  50                                          wxBITMAP_TYPE_BMP)
  51     {
  52     }
  53
  54     virtual bool LoadFile( wxBitmap*       pBitmap
  55                           ,const wxString& rName
  56                           ,HPS             hPs
  57                           ,long            lFlags
  58                           ,int             nDesiredWidth
  59                           ,int             nDesiredHeight
  60                          );
  61     virtual bool SaveFile( wxBitmap*        pBitmap
  62                           ,const wxString&  rName
  63                           ,int              lType
  64                           ,const wxPalette* pPalette = NULL
  65                          );
  66
  67 private:
  68     inline virtual bool LoadFile( wxBitmap*       pBitmap
  69                                  ,int             nId
  70                                  ,long            lFlags
  71                                  ,int             nDesiredWidth
  72                                  ,int             nDesiredHeight
  73                                 )
  74     {
  75         return wxBitmapHandler::LoadFile( pBitmap
  76                                          ,nId
  77                                          ,lFlags
  78                                          ,nDesiredWidth
  79                                          ,nDesiredHeight
  80                                         );
  81     }
  82     DECLARE_DYNAMIC_CLASS(wxBMPFileHandler)
  83 };
  84
  85 class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler
  86 {
  87 public:
  88     wxBMPResourceHandler() : wxBitmapHandler(_T("Windows bitmap resource"),
  89                                              wxEmptyString,
  90                                              wxBITMAP_TYPE_BMP_RESOURCE)
  91     {
  92     }
  93
  94     virtual bool LoadFile( wxBitmap*       pBitmap
  95                           ,int             nId
  96                           ,long            lFlags
  97                           ,int             nDesiredWidth
  98                           ,int             nDesiredHeight
  99                          );
 100
 101 private:
 102     DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler)
 103 };
 104
 105 class WXDLLEXPORT wxIconHandler : public wxGDIImageHandler
 106 {
 107 public:
 108     wxIconHandler( const wxString& rName
 109                   ,const wxString& rExt
 110                   ,long            lType
 111                  ) : wxGDIImageHandler( rName
 112                                        ,rExt
 113                                        ,lType
 114                                       )
 115     {
 116     }
 117
 118     // creating and saving icons is not supported
 119     virtual bool Create( wxGDIImage* WXUNUSED(pImage)
 120                         ,void*       WXUNUSED(pData)
 121                         ,long        WXUNUSED(lFlags)
 122                         ,int         WXUNUSED(nWidth)
 123                         ,int         WXUNUSED(nHeight)
 124                         ,int         WXUNUSED(nDepth) = 1
 125                        )
 126     {
 127         return(FALSE);
 128     }
 129
 130     virtual bool Save( wxGDIImage*     WXUNUSED(pImage)
 131                       ,const wxString& WXUNUSED(rName)
 132                       ,int             WXUNUSED(nType)
 133                      )
 134     {
 135         return(FALSE);
 136     }
 137     virtual bool Load( wxGDIImage*     pImage
 138                       ,const wxString& rName
 139                       ,HPS             hPs
 140                       ,long            lFlags
 141                       ,int             nDesiredWidth
 142                       ,int             nDesiredHeight
 143                      )
 144     {
 145         wxIcon*                     pIcon = wxDynamicCast(pImage, wxIcon);
 146         wxCHECK_MSG(pIcon, FALSE, _T("wxIconHandler only works with icons"));
 147
 148         return LoadIcon( pIcon
 149                         ,rName
 150                         ,hPs
 151                         ,lFlags
 152                         ,nDesiredWidth
 153                         ,nDesiredHeight
 154                        );
 155     }
 156
 157 protected:
 158     virtual bool LoadIcon( wxIcon*         pIcon
 159                           ,const wxString& rName
 160                           ,HPS             hPs
 161                           ,long            lFlags
 162                           ,int             nDesiredWidth = -1
 163                           ,int             nDesiredHeight = -1
 164                          ) = 0;
 165 private:
 166     inline virtual bool Load( wxGDIImage*     pImage
 167                              ,int             nId
 168                              ,long            lFlags
 169                              ,int             nDesiredWidth
 170                              ,int             nDesiredHeight
 171                             )
 172     {
 173         return FALSE;
 174     }
 175 };
 176
 177 class WXDLLEXPORT wxICOFileHandler : public wxIconHandler
 178 {
 179 public:
 180     wxICOFileHandler() : wxIconHandler(_T("ICO icon file"),
 181                                        _T("ico"),
 182                                        wxBITMAP_TYPE_ICO)
 183     {
 184     }
 185
 186     virtual bool LoadIcon( wxIcon *        pIcon
 187                           ,const wxString& rName
 188                           ,HPS             hPs
 189                           ,long            lFlags
 190                           ,int             nDesiredWidth = -1
 191                           ,int             nDesiredHeight = -1
 192                          );
 193
 194 private:
 195     DECLARE_DYNAMIC_CLASS(wxICOFileHandler)
 196 };
 197
 198 class WXDLLEXPORT wxICOResourceHandler: public wxIconHandler
 199 {
 200 public:
 201     wxICOResourceHandler() : wxIconHandler(_T("ICO resource"),
 202                                            _T("ico"),
 203                                            wxBITMAP_TYPE_ICO_RESOURCE)
 204     {
 205     }
 206
 207     virtual bool LoadIcon( wxIcon*         pIcon
 208                           ,const wxString& rName
 209                           ,HPS             hPs
 210                           ,long            lFlags
 211                           ,int             nDesiredWidth = -1
 212                           ,int             nDesiredHeight = -1
 213                          );
 214
 215 private:
 216     DECLARE_DYNAMIC_CLASS(wxICOResourceHandler)
 217 };
 218
 219 // ----------------------------------------------------------------------------
 220 // wxWin macros
 221 // ----------------------------------------------------------------------------
 222
 223 #if !USE_SHARED_LIBRARIES
 224     IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler)
 225     IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
 226     IMPLEMENT_DYNAMIC_CLASS(wxICOFileHandler, wxObject)
 227     IMPLEMENT_DYNAMIC_CLASS(wxICOResourceHandler, wxObject)
 228 #endif
 229
 230 // ============================================================================
 231 // implementation
 232 // ============================================================================
 233
 234 wxGDIImageHandlerList wxGDIImage::ms_handlers;
 235
 236 // ----------------------------------------------------------------------------
 237 // wxGDIImage functions forwarded to wxGDIImageRefData
 238 // ----------------------------------------------------------------------------
 239
 240 bool wxGDIImage::FreeResource(
 241   bool                              WXUNUSED(bForce)
 242 )
 243 {
 244     if ( !IsNull() )
 245     {
 246         GetGDIImageData()->Free();
 247         GetGDIImageData()->m_hHandle = 0;
 248     }
 249
 250     return(TRUE);
 251 }
 252
 253 WXHANDLE wxGDIImage::GetResourceHandle()
 254 {
 255     return GetHandle();
 256 }
 257
 258 // ----------------------------------------------------------------------------
 259 // wxGDIImage handler stuff
 260 // ----------------------------------------------------------------------------
 261
 262 void wxGDIImage::AddHandler(
 263   wxGDIImageHandler*                pHandler
 264 )
 265 {
 266     ms_handlers.Append(pHandler);
 267 }
 268
 269 void wxGDIImage::InsertHandler(
 270   wxGDIImageHandler*                pHandler
 271 )
 272 {
 273     ms_handlers.Insert(pHandler);
 274 }
 275
 276 bool wxGDIImage::RemoveHandler(
 277   const wxString&                   rName
 278 )
 279 {
 280     wxGDIImageHandler*              pHandler = FindHandler(rName);
 281
 282     if (pHandler)
 283     {
 284         ms_handlers.DeleteObject(pHandler);
 285         return(TRUE);
 286     }
 287     else
 288         return(FALSE);
 289 }
 290
 291 wxGDIImageHandler* wxGDIImage::FindHandler(
 292   const wxString&                   rName
 293 )
 294 {
 295     wxGDIImageHandlerList::compatibility_iterator   pNode = ms_handlers.GetFirst();
 296
 297     while ( pNode )
 298     {
 299         wxGDIImageHandler*          pHandler = pNode->GetData();
 300
 301         if ( pHandler->GetName() == rName )
 302             return pHandler;
 303         pNode = pNode->GetNext();
 304     }
 305     return((wxGDIImageHandler*)NULL);
 306 }
 307
 308 wxGDIImageHandler* wxGDIImage::FindHandler(
 309   const wxString&                   rExtension
 310 , long                              lType
 311 )
 312 {
 313     wxGDIImageHandlerList::compatibility_iterator   pNode = ms_handlers.GetFirst();
 314     while ( pNode )
 315     {
 316         wxGDIImageHandler*          pHandler = pNode->GetData();
 317
 318         if ( (pHandler->GetExtension() = rExtension) &&
 319              (lType == -1 || pHandler->GetType() == lType) )
 320         {
 321             return pHandler;
 322         }
 323         pNode = pNode->GetNext();
 324     }
 325     return((wxGDIImageHandler*)NULL);
 326 }
 327
 328 wxGDIImageHandler* wxGDIImage::FindHandler(
 329   long                              lType
 330 )
 331 {
 332     wxGDIImageHandlerList::compatibility_iterator   pNode = ms_handlers.GetFirst();
 333
 334     while ( pNode )
 335     {
 336         wxGDIImageHandler*          pHandler = pNode->GetData();
 337
 338         if ( pHandler->GetType() == lType )
 339             return pHandler;
 340         pNode = pNode->GetNext();
 341     }
 342     return((wxGDIImageHandler*)NULL);
 343 }
 344
 345 void wxGDIImage::CleanUpHandlers()
 346 {
 347     wxGDIImageHandlerList::compatibility_iterator   pNode = ms_handlers.GetFirst();
 348
 349     while ( pNode )
 350     {
 351         wxGDIImageHandler*                              pHandler = pNode->GetData();
 352         wxGDIImageHandlerList::compatibility_iterator   pNext = pNode->GetNext();
 353
 354         delete pHandler;
 355         ms_handlers.Erase( pNode );
 356         pNode = pNext;
 357     }
 358 }
 359
 360 void wxGDIImage::InitStandardHandlers()
 361 {
 362     AddHandler(new wxBMPResourceHandler);
 363     AddHandler(new wxBMPFileHandler);
 364     AddHandler(new wxICOResourceHandler);
 365     AddHandler(new wxICOFileHandler);
 366 }
 367
 368 // ----------------------------------------------------------------------------
 369 // wxBitmap handlers
 370 // ----------------------------------------------------------------------------
 371
 372 bool wxBMPResourceHandler::LoadFile(
 373   wxBitmap*                         pBitmap
 374 , int                               nId
 375 , long                              lFlags
 376 , int                               nDesiredWidth
 377 , int                               nDesiredHeight
 378 )
 379 {
 380     SIZEL                               vSize = {0, 0};
 381     DEVOPENSTRUC                        vDop  = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
 382     HDC                                 hDC   = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
 383     HPS                                 hPS   = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
 384
 385     pBitmap->SetHBITMAP((WXHBITMAP)::GpiLoadBitmap( hPS
 386                                                    ,NULLHANDLE
 387                                                    ,nId
 388                                                    ,0
 389                                                    ,0
 390                                                   ));
 391     ::GpiDestroyPS(hPS);
 392     ::DevCloseDC(hDC);
 393
 394     wxBitmapRefData*                pData = pBitmap->GetBitmapData();
 395
 396     if ( pBitmap->Ok() )
 397     {
 398         BITMAPINFOHEADER            vBmph;
 399
 400         ::GpiQueryBitmapParameters(GetHbitmapOf(*pBitmap), &vBmph);
 401         pData->m_nWidth  = vBmph.cx;
 402         pData->m_nHeight = vBmph.cy;
 403         pData->m_nDepth  = vBmph.cBitCount;
 404     }
 405     return(pBitmap->Ok());
 406 } // end of wxBMPResourceHandler::LoadFile
 407
 408 bool wxBMPFileHandler::LoadFile(
 409   wxBitmap*                         pBitmap
 410 , const wxString&                   rName
 411 , HPS                               hPs
 412 , long                              WXUNUSED(lFlags)
 413 , int                               WXUNUSED(nDesiredWidth)
 414 , int                               WXUNUSED(nDesiredHeight)
 415 )
 416 {
 417 #if wxUSE_IMAGE_LOADING_IN_OS2
 418     wxPalette*                      pPalette = NULL;
 419
 420     bool                            bSuccess = FALSE; /* wxLoadIntoBitmap( WXSTRINGCAST rName
 421                                                                 ,pBitmap
 422                                                                 ,&pPalette
 423                                                                ) != 0; */
 424     if (bSuccess && pPalette)
 425     {
 426         pBitmap->SetPalette(*pPalette);
 427     }
 428
 429     // it was copied by the bitmap if it was loaded successfully
 430     delete pPalette;
 431
 432     return(bSuccess);
 433 #else
 434     return(FALSE);
 435 #endif
 436 }
 437
 438 bool wxBMPFileHandler::SaveFile(
 439   wxBitmap*                         pBitmap
 440 , const wxString&                   rName
 441 , int                               WXUNUSED(nType)
 442 , const wxPalette*                  pPal
 443 )
 444 {
 445 #if wxUSE_IMAGE_LOADING_IN_OS2
 446     wxPalette*                      pActualPalette = (wxPalette *)pPal;
 447
 448     if (!pActualPalette)
 449         pActualPalette = pBitmap->GetPalette();
 450     /* return(wxSaveBitmap( WXSTRINGCAST rName
 451                         ,pBitmap
 452                         ,pActualPalette
 453                        ) != 0); */
 454     return(FALSE);
 455 #else
 456     return(FALSE);
 457 #endif
 458 }
 459
 460 // ----------------------------------------------------------------------------
 461 // wxIcon handlers
 462 // ----------------------------------------------------------------------------
 463
 464 bool wxICOFileHandler::LoadIcon(
 465   wxIcon*                           pIcon
 466 , const wxString&                   rName
 467 , HPS                               hPs
 468 , long                              lFlags
 469 , int                               nDesiredWidth
 470 , int                               nDesiredHeight
 471 )
 472 {
 473 #if wxUSE_RESOURCE_LOADING_IN_OS2
 474     pIcon->UnRef();
 475
 476     // actual size
 477     wxSize                          vSize;
 478
 479     return(FALSE);
 480 #else
 481     return(FALSE);
 482 #endif
 483 }
 484
 485 bool wxICOResourceHandler::LoadIcon(
 486   wxIcon*                           pIcon
 487 , const wxString&                   rName
 488 , HPS                               hPs
 489 , long                              lFlags
 490 , int                               WXUNUSED(nDesiredWidth)
 491 , int                               WXUNUSED(nDesiredHeight)
 492 )
 493 {
 494     HPOINTER                        hIcon;
 495
 496     hIcon = ::WinLoadFileIcon( (PSZ)rName.c_str()
 497                               ,TRUE // load for private use
 498                              );
 499
 500     pIcon->SetSize(32, 32); // all OS/2 icons are 32 x 32
 501
 502
 503     pIcon->SetHICON((WXHICON)hIcon);
 504
 505     return pIcon->Ok();
 506 } // end of wxICOResourceHandler::LoadIcon
 507