src/html/m_image.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/html/m_image.cpp
   3 // Purpose:     wxHtml module for displaying images
   4 // Author:      Vaclav Slavik
   5 // Copyright:   (c) 1999 Vaclav Slavik, Joel Lucsy
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 #include "wx/wxprec.h"
  10
  11 #ifdef __BORLANDC__
  12     #pragma hdrstop
  13 #endif
  14
  15 #if wxUSE_HTML && wxUSE_STREAMS
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/dynarray.h"
  19     #include "wx/dc.h"
  20     #include "wx/scrolwin.h"
  21     #include "wx/timer.h"
  22     #include "wx/dcmemory.h"
  23     #include "wx/log.h"
  24     #include "wx/math.h"
  25     #include "wx/image.h"
  26     #include "wx/wxcrtvararg.h"
  27 #endif
  28
  29 #include "wx/html/forcelnk.h"
  30 #include "wx/html/m_templ.h"
  31 #include "wx/html/htmlwin.h"
  32
  33 #include "wx/gifdecod.h"
  34 #include "wx/artprov.h"
  35
  36 #include <float.h>
  37
  38 FORCE_LINK_ME(m_image)
  39
  40
  41
  42
  43 WX_DECLARE_OBJARRAY(int, CoordArray);
  44 #include "wx/arrimpl.cpp" // this is a magic incantation which must be done!
  45 WX_DEFINE_OBJARRAY(CoordArray)
  46
  47
  48 // ---------------------------------------------------------------------------
  49 // wxHtmlImageMapAreaCell
  50 //                  0-width, 0-height cell that represents single area in
  51 //                  imagemap (it's GetLink is called from wxHtmlImageCell's)
  52 // ---------------------------------------------------------------------------
  53
  54 class wxHtmlImageMapAreaCell : public wxHtmlCell
  55 {
  56     public:
  57         enum celltype { CIRCLE, RECT, POLY };
  58     protected:
  59         CoordArray coords;
  60         celltype type;
  61         int radius;
  62     public:
  63         wxHtmlImageMapAreaCell( celltype t, wxString &coords, double pixel_scale = 1.0);
  64         virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
  65         void Draw(wxDC& WXUNUSED(dc),
  66                   int WXUNUSED(x), int WXUNUSED(y),
  67                   int WXUNUSED(view_y1), int WXUNUSED(view_y2),
  68                   wxHtmlRenderingInfo& WXUNUSED(info)) {}
  69
  70
  71     wxDECLARE_NO_COPY_CLASS(wxHtmlImageMapAreaCell);
  72 };
  73
  74
  75
  76
  77
  78 wxHtmlImageMapAreaCell::wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::celltype t, wxString &incoords, double pixel_scale )
  79 {
  80     int i;
  81     wxString x = incoords, y;
  82
  83     type = t;
  84     while ((i = x.Find( ',' )) != wxNOT_FOUND)
  85     {
  86         coords.Add( (int)(pixel_scale * (double)wxAtoi( x.Left( i ).c_str())) );
  87         x = x.Mid( i + 1 );
  88     }
  89     coords.Add( (int)(pixel_scale * (double)wxAtoi( x.c_str())) );
  90 }
  91
  92 wxHtmlLinkInfo *wxHtmlImageMapAreaCell::GetLink( int x, int y ) const
  93 {
  94     switch (type)
  95     {
  96         case RECT:
  97             if ( coords.GetCount() == 4 )
  98             {
  99                 int l, t, r, b;
 100
 101                 l = coords[ 0 ];
 102                 t = coords[ 1 ];
 103                 r = coords[ 2 ];
 104                 b = coords[ 3 ];
 105                 if (x >= l && x <= r && y >= t && y <= b)
 106                 {
 107                     return m_Link;
 108                 }
 109             }
 110             break;
 111         case CIRCLE:
 112             if ( coords.GetCount() == 3 )
 113             {
 114                 int l, t, r;
 115                 double  d;
 116
 117                 l = coords[ 0 ];
 118                 t = coords[ 1 ];
 119                 r = coords[ 2 ];
 120                 d = sqrt( (double) (((x - l) * (x - l)) + ((y - t) * (y - t))) );
 121                 if (d < (double)r)
 122                 {
 123                     return m_Link;
 124                 }
 125             }
 126             break;
 127         case POLY:
 128              if (coords.GetCount() >= 6)
 129              {
 130                  int intersects = 0;
 131                  int wherex = x;
 132                  int wherey = y;
 133                  int totalv = coords.GetCount() / 2;
 134                  int totalc = totalv * 2;
 135                  int xval = coords[totalc - 2];
 136                  int yval = coords[totalc - 1];
 137                  int end = totalc;
 138                  int pointer = 1;
 139
 140                  if ((yval >= wherey) != (coords[pointer] >= wherey))
 141                  {
 142                      if ((xval >= wherex) == (coords[0] >= wherex))
 143                      {
 144                          intersects += (xval >= wherex) ? 1 : 0;
 145                      }
 146                      else
 147                      {
 148                          intersects += ((xval - (yval - wherey) *
 149                                          (coords[0] - xval) /
 150                                          (coords[pointer] - yval)) >= wherex) ? 1 : 0;
 151                      }
 152                  }
 153
 154                  while (pointer < end)
 155                  {
 156                      yval = coords[pointer];
 157                      pointer += 2;
 158                      if (yval >= wherey)
 159                      {
 160                          while ((pointer < end) && (coords[pointer] >= wherey))
 161                          {
 162                              pointer += 2;
 163                          }
 164                          if (pointer >= end)
 165                          {
 166                              break;
 167                          }
 168                          if ((coords[pointer - 3] >= wherex) ==
 169                                  (coords[pointer - 1] >= wherex)) {
 170                              intersects += (coords[pointer - 3] >= wherex) ? 1 : 0;
 171                          }
 172                          else
 173                          {
 174                              intersects +=
 175                                  ((coords[pointer - 3] - (coords[pointer - 2] - wherey) *
 176                                    (coords[pointer - 1] - coords[pointer - 3]) /
 177                                    (coords[pointer] - coords[pointer - 2])) >= wherex) ? 1 : 0;
 178                          }
 179                      }
 180                      else
 181                      {
 182                          while ((pointer < end) && (coords[pointer] < wherey))
 183                          {
 184                              pointer += 2;
 185                          }
 186                          if (pointer >= end)
 187                          {
 188                              break;
 189                          }
 190                          if ((coords[pointer - 3] >= wherex) ==
 191                                  (coords[pointer - 1] >= wherex))
 192                          {
 193                              intersects += (coords[pointer - 3] >= wherex) ? 1 : 0;
 194                          }
 195                          else
 196                          {
 197                              intersects +=
 198                                  ((coords[pointer - 3] - (coords[pointer - 2] - wherey) *
 199                                    (coords[pointer - 1] - coords[pointer - 3]) /
 200                                    (coords[pointer] - coords[pointer - 2])) >= wherex) ? 1 : 0;
 201                          }
 202                      }
 203                  }
 204                  if ((intersects & 1) != 0)
 205                  {
 206                      return m_Link;
 207                  }
 208             }
 209             break;
 210     }
 211
 212     if (m_Next)
 213     {
 214         wxHtmlImageMapAreaCell  *a = (wxHtmlImageMapAreaCell*)m_Next;
 215         return a->GetLink( x, y );
 216     }
 217     return NULL;
 218 }
 219
 220
 221
 222
 223
 224
 225
 226
 227 //--------------------------------------------------------------------------------
 228 // wxHtmlImageMapCell
 229 //                  0-width, 0-height cell that represents map from imagemaps
 230 //                  it is always placed before wxHtmlImageMapAreaCells
 231 //                  It responds to Find(wxHTML_COND_ISIMAGEMAP)
 232 //--------------------------------------------------------------------------------
 233
 234
 235 class wxHtmlImageMapCell : public wxHtmlCell
 236 {
 237     public:
 238         wxHtmlImageMapCell( wxString &name );
 239     protected:
 240         wxString m_Name;
 241     public:
 242         virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
 243         virtual const wxHtmlCell *Find( int cond, const void *param ) const;
 244         void Draw(wxDC& WXUNUSED(dc),
 245                   int WXUNUSED(x), int WXUNUSED(y),
 246                   int WXUNUSED(view_y1), int WXUNUSED(view_y2),
 247                   wxHtmlRenderingInfo& WXUNUSED(info)) {}
 248
 249     wxDECLARE_NO_COPY_CLASS(wxHtmlImageMapCell);
 250 };
 251
 252
 253 wxHtmlImageMapCell::wxHtmlImageMapCell( wxString &name )
 254 {
 255     m_Name = name ;
 256 }
 257
 258 wxHtmlLinkInfo *wxHtmlImageMapCell::GetLink( int x, int y ) const
 259 {
 260     wxHtmlImageMapAreaCell  *a = (wxHtmlImageMapAreaCell*)m_Next;
 261     if (a)
 262         return a->GetLink( x, y );
 263     return wxHtmlCell::GetLink( x, y );
 264 }
 265
 266 const wxHtmlCell *wxHtmlImageMapCell::Find( int cond, const void *param ) const
 267 {
 268     if (cond == wxHTML_COND_ISIMAGEMAP)
 269     {
 270         if (m_Name == *((wxString*)(param)))
 271             return this;
 272     }
 273     return wxHtmlCell::Find(cond, param);
 274 }
 275
 276
 277
 278
 279
 280 //--------------------------------------------------------------------------------
 281 // wxHtmlImageCell
 282 //                  Image/bitmap
 283 //--------------------------------------------------------------------------------
 284
 285 class wxHtmlImageCell : public wxHtmlCell
 286 {
 287 public:
 288     wxHtmlImageCell(wxHtmlWindowInterface *windowIface,
 289                     wxFSFile *input,
 290                     int w = wxDefaultCoord, bool wpercent = false,
 291                     int h = wxDefaultCoord, bool hpresent = false,
 292                     double scale = 1.0, int align = wxHTML_ALIGN_BOTTOM,
 293                     const wxString& mapname = wxEmptyString);
 294     virtual ~wxHtmlImageCell();
 295     void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
 296               wxHtmlRenderingInfo& info);
 297     virtual wxHtmlLinkInfo *GetLink(int x = 0, int y = 0) const;
 298
 299     void SetImage(const wxImage& img);
 300
 301     // If "alt" text is set, it will be used when converting this cell to text.
 302     void SetAlt(const wxString& alt);
 303     virtual wxString ConvertToText(wxHtmlSelection *sel) const;
 304
 305 #if wxUSE_GIF && wxUSE_TIMER
 306     void AdvanceAnimation(wxTimer *timer);
 307     virtual void Layout(int w);
 308 #endif
 309
 310 private:
 311     wxBitmap           *m_bitmap;
 312     int                 m_align;
 313     int                 m_bmpW, m_bmpH;
 314     bool                m_bmpWpercent:1;
 315     bool                m_bmpHpresent:1;
 316     bool                m_showFrame:1;
 317     wxHtmlWindowInterface *m_windowIface;
 318 #if wxUSE_GIF && wxUSE_TIMER
 319     wxGIFDecoder       *m_gifDecoder;
 320     wxTimer            *m_gifTimer;
 321     int                 m_physX, m_physY;
 322     size_t              m_nCurrFrame;
 323 #endif
 324     double              m_scale;
 325     wxHtmlImageMapCell *m_imageMap;
 326     wxString            m_mapName;
 327     wxString            m_alt;
 328
 329     wxDECLARE_NO_COPY_CLASS(wxHtmlImageCell);
 330 };
 331
 332 #if wxUSE_GIF && wxUSE_TIMER
 333 class wxGIFTimer : public wxTimer
 334 {
 335     public:
 336         wxGIFTimer(wxHtmlImageCell *cell) : m_cell(cell) {}
 337         virtual void Notify()
 338         {
 339             m_cell->AdvanceAnimation(this);
 340         }
 341
 342     private:
 343         wxHtmlImageCell *m_cell;
 344
 345     wxDECLARE_NO_COPY_CLASS(wxGIFTimer);
 346 };
 347 #endif
 348
 349
 350 //----------------------------------------------------------------------------
 351 // wxHtmlImageCell
 352 //----------------------------------------------------------------------------
 353
 354
 355 wxHtmlImageCell::wxHtmlImageCell(wxHtmlWindowInterface *windowIface,
 356                                  wxFSFile *input,
 357                                  int w, bool wpercent, int h, bool hpresent, double scale, int align,
 358                                  const wxString& mapname) : wxHtmlCell()
 359 {
 360     m_windowIface = windowIface;
 361     m_scale = scale;
 362     m_showFrame = false;
 363     m_bitmap = NULL;
 364     m_bmpW   = w;
 365     m_bmpH   = h;
 366     m_align  = align;
 367     m_bmpWpercent = wpercent;
 368     m_bmpHpresent = hpresent;
 369     m_imageMap = NULL;
 370     m_mapName = mapname;
 371     SetCanLiveOnPagebreak(false);
 372 #if wxUSE_GIF && wxUSE_TIMER
 373     m_gifDecoder = NULL;
 374     m_gifTimer = NULL;
 375     m_physX = m_physY = wxDefaultCoord;
 376     m_nCurrFrame = 0;
 377 #endif
 378
 379     if ( m_bmpW && m_bmpH )
 380     {
 381         if ( input )
 382         {
 383             wxInputStream *s = input->GetStream();
 384
 385             if ( s )
 386             {
 387 #if wxUSE_GIF && wxUSE_TIMER
 388                 bool readImg = true;
 389                 if ( m_windowIface &&
 390                      (input->GetLocation().Matches(wxT("*.gif")) ||
 391                       input->GetLocation().Matches(wxT("*.GIF"))) )
 392                 {
 393                     m_gifDecoder = new wxGIFDecoder();
 394                     if ( m_gifDecoder->LoadGIF(*s) == wxGIF_OK )
 395                     {
 396                         wxImage img;
 397                         if ( m_gifDecoder->ConvertToImage(0, &img) )
 398                             SetImage(img);
 399
 400                         readImg = false;
 401
 402                         if ( m_gifDecoder->IsAnimation() )
 403                         {
 404                             m_gifTimer = new wxGIFTimer(this);
 405                             long delay = m_gifDecoder->GetDelay(0);
 406                             if ( delay == 0 )
 407                                 delay = 1;
 408                             m_gifTimer->Start(delay, true);
 409                         }
 410                         else
 411                         {
 412                             wxDELETE(m_gifDecoder);
 413                         }
 414                     }
 415                     else
 416                     {
 417                         wxDELETE(m_gifDecoder);
 418                     }
 419                 }
 420
 421                 if ( readImg )
 422 #endif // wxUSE_GIF && wxUSE_TIMER
 423                 {
 424                     wxImage image(*s, wxBITMAP_TYPE_ANY);
 425                     if ( image.IsOk() )
 426                         SetImage(image);
 427                 }
 428             }
 429         }
 430         else // input==NULL, use "broken image" bitmap
 431         {
 432             if ( m_bmpW == wxDefaultCoord && m_bmpH == wxDefaultCoord )
 433             {
 434                 m_bmpW = 29;
 435                 m_bmpH = 31;
 436             }
 437             else
 438             {
 439                 m_showFrame = true;
 440                 if ( m_bmpW == wxDefaultCoord ) m_bmpW = 31;
 441                 if ( m_bmpH == wxDefaultCoord ) m_bmpH = 33;
 442             }
 443             m_bitmap =
 444                 new wxBitmap(wxArtProvider::GetBitmap(wxART_MISSING_IMAGE));
 445         }
 446     }
 447     //else: ignore the 0-sized images used sometimes on the Web pages
 448
 449  }
 450
 451 void wxHtmlImageCell::SetImage(const wxImage& img)
 452 {
 453 #if !defined(__WXMSW__) || wxUSE_WXDIB
 454     if ( img.IsOk() )
 455     {
 456         delete m_bitmap;
 457
 458         int ww, hh;
 459         ww = img.GetWidth();
 460         hh = img.GetHeight();
 461
 462         if ( m_bmpW == wxDefaultCoord)
 463             m_bmpW = ww;
 464         if ( m_bmpH == wxDefaultCoord)
 465             m_bmpH = hh;
 466
 467         // Only scale the bitmap at the rendering stage,
 468         // so we don't lose quality twice
 469 /*
 470         if ((m_bmpW != ww) || (m_bmpH != hh))
 471         {
 472             wxImage img2 = img.Scale(m_bmpW, m_bmpH);
 473             m_bitmap = new wxBitmap(img2);
 474         }
 475         else
 476 */
 477             m_bitmap = new wxBitmap(img);
 478     }
 479 #endif
 480 }
 481
 482 void wxHtmlImageCell::SetAlt(const wxString& alt)
 483 {
 484     m_alt = alt;
 485 }
 486
 487 wxString wxHtmlImageCell::ConvertToText(wxHtmlSelection* WXUNUSED(sel)) const
 488 {
 489     return m_alt;
 490 }
 491
 492 #if wxUSE_GIF && wxUSE_TIMER
 493 void wxHtmlImageCell::AdvanceAnimation(wxTimer *timer)
 494 {
 495     wxImage img;
 496
 497     // advance current frame
 498     m_nCurrFrame++;
 499     if (m_nCurrFrame == m_gifDecoder->GetFrameCount())
 500         m_nCurrFrame = 0;
 501
 502     if ( m_physX == wxDefaultCoord )
 503     {
 504         m_physX = m_physY = 0;
 505         for (wxHtmlCell *cell = this; cell; cell = cell->GetParent())
 506         {
 507             m_physX += cell->GetPosX();
 508             m_physY += cell->GetPosY();
 509         }
 510     }
 511
 512     wxWindow *win = m_windowIface->GetHTMLWindow();
 513     wxPoint pos =
 514         m_windowIface->HTMLCoordsToWindow(this, wxPoint(m_physX, m_physY));
 515     wxRect rect(pos, wxSize(m_Width, m_Height));
 516
 517     if ( win->GetClientRect().Intersects(rect) &&
 518          m_gifDecoder->ConvertToImage(m_nCurrFrame, &img) )
 519     {
 520 #if !defined(__WXMSW__) || wxUSE_WXDIB
 521         if ( m_gifDecoder->GetFrameSize(m_nCurrFrame) != wxSize(m_Width, m_Height) ||
 522              m_gifDecoder->GetFramePosition(m_nCurrFrame) != wxPoint(0, 0) )
 523         {
 524             wxBitmap bmp(img);
 525             wxMemoryDC dc;
 526             dc.SelectObject(*m_bitmap);
 527             dc.DrawBitmap(bmp, m_gifDecoder->GetFramePosition(m_nCurrFrame),
 528                           true /* use mask */);
 529         }
 530         else
 531 #endif
 532             SetImage(img);
 533         win->Refresh(img.HasMask(), &rect);
 534     }
 535
 536     long delay = m_gifDecoder->GetDelay(m_nCurrFrame);
 537     if ( delay == 0 )
 538         delay = 1;
 539     timer->Start(delay, true);
 540 }
 541
 542 void wxHtmlImageCell::Layout(int w)
 543 {
 544     if (m_bmpWpercent)
 545     {
 546
 547         m_Width = w*m_bmpW/100;
 548
 549         if (!m_bmpHpresent && m_bitmap != NULL)
 550             m_Height = m_bitmap->GetHeight()*m_Width/m_bitmap->GetWidth();
 551         else
 552             m_Height = static_cast<int>(m_scale*m_bmpH);
 553     } else
 554     {
 555         m_Width  = static_cast<int>(m_scale*m_bmpW);
 556         m_Height = static_cast<int>(m_scale*m_bmpH);
 557     }
 558
 559     switch (m_align)
 560     {
 561         case wxHTML_ALIGN_TOP :
 562             m_Descent = m_Height;
 563             break;
 564         case wxHTML_ALIGN_CENTER :
 565             m_Descent = m_Height / 2;
 566             break;
 567         case wxHTML_ALIGN_BOTTOM :
 568         default :
 569             m_Descent = 0;
 570             break;
 571     }
 572
 573     wxHtmlCell::Layout(w);
 574     m_physX = m_physY = wxDefaultCoord;
 575 }
 576
 577 #endif
 578
 579 wxHtmlImageCell::~wxHtmlImageCell()
 580 {
 581     delete m_bitmap;
 582 #if wxUSE_GIF && wxUSE_TIMER
 583     delete m_gifTimer;
 584     delete m_gifDecoder;
 585 #endif
 586 }
 587
 588
 589 void wxHtmlImageCell::Draw(wxDC& dc, int x, int y,
 590                            int WXUNUSED(view_y1), int WXUNUSED(view_y2),
 591                            wxHtmlRenderingInfo& WXUNUSED(info))
 592 {
 593     if ( m_showFrame )
 594     {
 595         dc.SetBrush(*wxTRANSPARENT_BRUSH);
 596         dc.SetPen(*wxBLACK_PEN);
 597         dc.DrawRectangle(x + m_PosX, y + m_PosY, m_Width, m_Height);
 598         x++, y++;
 599     }
 600     if ( m_bitmap )
 601     {
 602         // We add in the scaling from the desired bitmap width
 603         // and height, so we only do the scaling once.
 604         double imageScaleX = 1.0;
 605         double imageScaleY = 1.0;
 606         if (m_Width != m_bitmap->GetWidth())
 607             imageScaleX = (double) m_Width / (double) m_bitmap->GetWidth();
 608         if (m_Height != m_bitmap->GetHeight())
 609             imageScaleY = (double) m_Height / (double) m_bitmap->GetHeight();
 610
 611         double us_x, us_y;
 612         dc.GetUserScale(&us_x, &us_y);
 613         dc.SetUserScale(us_x * imageScaleX, us_y * imageScaleY);
 614
 615         dc.DrawBitmap(*m_bitmap, (int) ((x + m_PosX) / (imageScaleX)),
 616                                  (int) ((y + m_PosY) / (imageScaleY)), true);
 617         dc.SetUserScale(us_x, us_y);
 618     }
 619 }
 620
 621 wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const
 622 {
 623     if (m_mapName.empty())
 624         return wxHtmlCell::GetLink( x, y );
 625     if (!m_imageMap)
 626     {
 627         wxHtmlContainerCell *p, *op;
 628         op = p = GetParent();
 629         while (p)
 630         {
 631             op = p;
 632             p = p->GetParent();
 633         }
 634         p = op;
 635         wxHtmlCell *cell = (wxHtmlCell*)p->Find(wxHTML_COND_ISIMAGEMAP,
 636                                                 (const void*)(&m_mapName));
 637         if (!cell)
 638         {
 639             ((wxString&)m_mapName).Clear();
 640             return wxHtmlCell::GetLink( x, y );
 641         }
 642         {   // dirty hack, ask Joel why he fills m_ImageMap in this place
 643             // THE problem is that we're in const method and we can't modify m_ImageMap
 644             wxHtmlImageMapCell **cx = (wxHtmlImageMapCell**)(&m_imageMap);
 645             *cx = (wxHtmlImageMapCell*)cell;
 646         }
 647     }
 648     return m_imageMap->GetLink(x, y);
 649 }
 650
 651
 652
 653 //--------------------------------------------------------------------------------
 654 // tag handler
 655 //--------------------------------------------------------------------------------
 656
 657 TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
 658     TAG_HANDLER_CONSTR(IMG) { }
 659
 660     TAG_HANDLER_PROC(tag)
 661     {
 662         if (tag.GetName() == wxT("IMG"))
 663         {
 664             wxString tmp;
 665             if (tag.GetParamAsString(wxT("SRC"), &tmp))
 666             {
 667                 int w = wxDefaultCoord, h = wxDefaultCoord;
 668                 bool wpercent = false;
 669                 bool hpresent = false;
 670                 int al;
 671                 wxFSFile *str;
 672                 wxString mn;
 673
 674                 str = m_WParser->OpenURL(wxHTML_URL_IMAGE, tmp);
 675
 676                 if (tag.GetParamAsIntOrPercent(wxT("WIDTH"), &w, wpercent))
 677                 {
 678                     if (wpercent)
 679                     {
 680                         if (w < 0)
 681                             w = 0;
 682                         else if (w > 100)
 683                             w = 100;
 684                     }
 685                 }
 686
 687                 if (tag.GetParamAsInt(wxT("HEIGHT"), &h))
 688                 {
 689                     hpresent = true;
 690                 }
 691
 692                 al = wxHTML_ALIGN_BOTTOM;
 693                 wxString alstr;
 694                 if (tag.GetParamAsString(wxT("ALIGN"), &alstr))
 695                 {
 696                     alstr.MakeUpper();  // for the case alignment was in ".."
 697                     if (alstr == wxT("TEXTTOP"))
 698                         al = wxHTML_ALIGN_TOP;
 699                     else if ((alstr == wxT("CENTER")) || (alstr == wxT("ABSCENTER")))
 700                         al = wxHTML_ALIGN_CENTER;
 701                 }
 702                 if (tag.GetParamAsString(wxT("USEMAP"), &mn))
 703                 {
 704                     if ( !mn.empty() && *mn.begin() == '#' )
 705                     {
 706                         mn = mn.Mid( 1 );
 707                     }
 708                 }
 709                 wxHtmlImageCell *cel = new wxHtmlImageCell(
 710                                           m_WParser->GetWindowInterface(),
 711                                           str, w, wpercent, h, hpresent,
 712                                           m_WParser->GetPixelScale(),
 713                                           al, mn);
 714                 m_WParser->ApplyStateToCell(cel);
 715                 m_WParser->StopCollapsingSpaces();
 716                 cel->SetId(tag.GetParam(wxT("id"))); // may be empty
 717                 cel->SetAlt(tag.GetParam(wxT("alt")));
 718                 m_WParser->GetContainer()->InsertCell(cel);
 719                 if (str)
 720                     delete str;
 721             }
 722         }
 723         if (tag.GetName() == wxT("MAP"))
 724         {
 725             m_WParser->CloseContainer();
 726             m_WParser->OpenContainer();
 727             wxString tmp;
 728             if (tag.GetParamAsString(wxT("NAME"), &tmp))
 729             {
 730                 wxHtmlImageMapCell *cel = new wxHtmlImageMapCell( tmp );
 731                 m_WParser->GetContainer()->InsertCell( cel );
 732             }
 733             ParseInner( tag );
 734             m_WParser->CloseContainer();
 735             m_WParser->OpenContainer();
 736         }
 737         if (tag.GetName() == wxT("AREA"))
 738         {
 739             wxString tmp;
 740             if (tag.GetParamAsString(wxT("SHAPE"), &tmp))
 741             {
 742                 wxString coords = tag.GetParam(wxT("COORDS"));
 743                 tmp.MakeUpper();
 744                 wxHtmlImageMapAreaCell *cel = NULL;
 745                 if (tmp == wxT("POLY"))
 746                 {
 747                     cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::POLY, coords, m_WParser->GetPixelScale() );
 748                 }
 749                 else if (tmp == wxT("CIRCLE"))
 750                 {
 751                     cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::CIRCLE, coords, m_WParser->GetPixelScale() );
 752                 }
 753                 else if (tmp == wxT("RECT"))
 754                 {
 755                     cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::RECT, coords, m_WParser->GetPixelScale() );
 756                 }
 757                 wxString href;
 758                 if (cel != NULL && tag.GetParamAsString(wxT("HREF"), &href))
 759                     cel->SetLink(wxHtmlLinkInfo(href, tag.GetParam(wxT("TARGET"))));
 760                 if (cel != NULL)
 761                     m_WParser->GetContainer()->InsertCell( cel );
 762             }
 763         }
 764
 765         return false;
 766     }
 767
 768 TAG_HANDLER_END(IMG)
 769
 770
 771
 772 TAGS_MODULE_BEGIN(Image)
 773
 774     TAGS_MODULE_ADD(IMG)
 775
 776 TAGS_MODULE_END(Image)
 777
 778
 779 #endif