include/wx/html/htmlcell.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        htmlcell.h
   3 // Purpose:     wxHtmlCell class is used by wxHtmlWindow/wxHtmlWinParser
   4 //              as a basic visual element of HTML page
   5 // Author:      Vaclav Slavik
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 1999-2003 Vaclav Slavik
   8 // Licence:     wxWindows Licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11
  12 #ifndef _WX_HTMLCELL_H_
  13 #define _WX_HTMLCELL_H_
  14
  15 #if defined(__GNUG__) && !defined(__APPLE__)
  16 #pragma interface "htmlcell.h"
  17 #endif
  18
  19 #include "wx/defs.h"
  20
  21 #if wxUSE_HTML
  22
  23 #include "wx/html/htmltag.h"
  24 #include "wx/html/htmldefs.h"
  25 #include "wx/window.h"
  26
  27
  28 class WXDLLEXPORT wxHtmlLinkInfo;
  29 class WXDLLEXPORT wxHtmlCell;
  30 class WXDLLEXPORT wxHtmlContainerCell;
  31
  32
  33 // wxHtmlSelection is data holder with information about text selection.
  34 // Selection is defined by two positions (beginning and end of the selection)
  35 // and two leaf(!) cells at these positions.
  36 class WXDLLEXPORT wxHtmlSelection
  37 {
  38 public:
  39     wxHtmlSelection()
  40         : m_fromPos(wxDefaultPosition), m_toPos(wxDefaultPosition),
  41           m_fromPrivPos(wxDefaultPosition), m_toPrivPos(wxDefaultPosition),
  42           m_fromCell(NULL), m_toCell(NULL) {}
  43
  44     void Set(const wxPoint& fromPos, const wxHtmlCell *fromCell,
  45              const wxPoint& toPos, const wxHtmlCell *toCell);
  46     void Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell);
  47
  48     const wxHtmlCell *GetFromCell() const { return m_fromCell; }
  49     const wxHtmlCell *GetToCell() const { return m_toCell; }
  50
  51     // these values are in absolute coordinates:
  52     const wxPoint& GetFromPos() const { return m_fromPos; }
  53     const wxPoint& GetToPos() const { return m_toPos; }
  54
  55     // these are From/ToCell's private data
  56     const wxPoint& GetFromPrivPos() const { return m_fromPrivPos; }
  57     const wxPoint& GetToPrivPos() const { return m_toPrivPos; }
  58     void SetFromPrivPos(const wxPoint& pos) { m_fromPrivPos = pos; }
  59     void SetToPrivPos(const wxPoint& pos) { m_toPrivPos = pos; }
  60     void ClearPrivPos() { m_toPrivPos = m_fromPrivPos = wxDefaultPosition; }
  61
  62     const bool IsEmpty() const
  63         { return m_fromPos == wxDefaultPosition &&
  64                  m_toPos == wxDefaultPosition; }
  65
  66 private:
  67     wxPoint m_fromPos, m_toPos;
  68     wxPoint m_fromPrivPos, m_toPrivPos;
  69     const wxHtmlCell *m_fromCell, *m_toCell;
  70 };
  71
  72
  73
  74 enum wxHtmlSelectionState
  75 {
  76     wxHTML_SEL_OUT,     // currently rendered cell is outside the selection
  77     wxHTML_SEL_IN,      // ... is inside selection
  78     wxHTML_SEL_CHANGING // ... is the cell on which selection state changes
  79 };
  80
  81 // Selection state is passed to wxHtmlCell::Draw so that it can render itself
  82 // differently e.g. when inside text selection or outside it.
  83 class WXDLLEXPORT wxHtmlRenderingState
  84 {
  85 public:
  86     wxHtmlRenderingState() : m_selState(wxHTML_SEL_OUT) {}
  87
  88     void SetSelectionState(wxHtmlSelectionState s) { m_selState = s; }
  89     wxHtmlSelectionState GetSelectionState() const { return m_selState; }
  90
  91     void SetFgColour(const wxColour& c) { m_fgColour = c; }
  92     const wxColour& GetFgColour() const { return m_fgColour; }
  93     void SetBgColour(const wxColour& c) { m_bgColour = c; }
  94     const wxColour& GetBgColour() const { return m_bgColour; }
  95
  96 private:
  97     wxHtmlSelectionState  m_selState;
  98     wxColour              m_fgColour, m_bgColour;
  99 };
 100
 101
 102 // HTML rendering customization. This class is used when rendering wxHtmlCells
 103 // as a callback:
 104 class WXDLLEXPORT wxHtmlRenderingStyle
 105 {
 106 public:
 107     virtual wxColour GetSelectedTextColour(const wxColour& clr) = 0;
 108     virtual wxColour GetSelectedTextBgColour(const wxColour& clr) = 0;
 109 };
 110
 111 // Standard style:
 112 class WXDLLEXPORT wxDefaultHtmlRenderingStyle : public wxHtmlRenderingStyle
 113 {
 114 public:
 115     virtual wxColour GetSelectedTextColour(const wxColour& clr);
 116     virtual wxColour GetSelectedTextBgColour(const wxColour& clr);
 117 };
 118
 119
 120 // Information given to cells when drawing them. Contains rendering state,
 121 // selection information and rendering style object that can be used to
 122 // customize the output.
 123 class WXDLLEXPORT wxHtmlRenderingInfo
 124 {
 125 public:
 126     wxHtmlRenderingInfo() : m_selection(NULL), m_style(NULL) {}
 127
 128     void SetSelection(wxHtmlSelection *s) { m_selection = s; }
 129     wxHtmlSelection *GetSelection() const { return m_selection; }
 130
 131     void SetStyle(wxHtmlRenderingStyle *style) { m_style = style; }
 132     wxHtmlRenderingStyle& GetStyle() { return *m_style; }
 133
 134     wxHtmlRenderingState& GetState() { return m_state; }
 135
 136 protected:
 137     wxHtmlSelection      *m_selection;
 138     wxHtmlRenderingStyle *m_style;
 139     wxHtmlRenderingState m_state;
 140 };
 141
 142
 143 // Flags for wxHtmlCell::FindCellByPos
 144 enum
 145 {
 146     wxHTML_FIND_EXACT             = 1,
 147     wxHTML_FIND_NEAREST_BEFORE    = 2,
 148     wxHTML_FIND_NEAREST_AFTER     = 4
 149 };
 150
 151
 152
 153
 154 // ---------------------------------------------------------------------------
 155 // wxHtmlCell
 156 //                  Internal data structure. It represents fragments of parsed
 157 //                  HTML page - a word, picture, table, horizontal line and so
 158 //                  on.  It is used by wxHtmlWindow to represent HTML page in
 159 //                  memory.
 160 // ---------------------------------------------------------------------------
 161
 162
 163 class WXDLLEXPORT wxHtmlCell : public wxObject
 164 {
 165 public:
 166     wxHtmlCell();
 167     virtual ~wxHtmlCell();
 168
 169     void SetParent(wxHtmlContainerCell *p) {m_Parent = p;}
 170     wxHtmlContainerCell *GetParent() const {return m_Parent;}
 171
 172     int GetPosX() const {return m_PosX;}
 173     int GetPosY() const {return m_PosY;}
 174     int GetWidth() const {return m_Width;}
 175     int GetHeight() const {return m_Height;}
 176     int GetDescent() const {return m_Descent;}
 177
 178     const wxString& GetId() const { return m_id; }
 179     void SetId(const wxString& id) { m_id = id; }
 180
 181     // returns the link associated with this cell. The position is position
 182     // within the cell so it varies from 0 to m_Width, from 0 to m_Height
 183     virtual wxHtmlLinkInfo* GetLink(int WXUNUSED(x) = 0,
 184                                     int WXUNUSED(y) = 0) const
 185         { return m_Link; }
 186
 187     // return next cell among parent's cells
 188     wxHtmlCell *GetNext() const {return m_Next;}
 189     // returns first child cell (if there are any, i.e. if this is container):
 190     virtual wxHtmlCell* GetFirstChild() const { return NULL; }
 191
 192     // members writing methods
 193     virtual void SetPos(int x, int y) {m_PosX = x, m_PosY = y;}
 194     void SetLink(const wxHtmlLinkInfo& link);
 195     void SetNext(wxHtmlCell *cell) {m_Next = cell;}
 196
 197     // 1. adjust cell's width according to the fact that maximal possible width
 198     //    is w.  (this has sense when working with horizontal lines, tables
 199     //    etc.)
 200     // 2. prepare layout (=fill-in m_PosX, m_PosY (and sometime m_Height)
 201     //    members) = place items to fit window, according to the width w
 202     virtual void Layout(int w);
 203
 204     // renders the cell
 205     virtual void Draw(wxDC& WXUNUSED(dc),
 206                       int WXUNUSED(x), int WXUNUSED(y),
 207                       int WXUNUSED(view_y1), int WXUNUSED(view_y2),
 208                       wxHtmlRenderingInfo& WXUNUSED(info)) {}
 209
 210     // proceed drawing actions in case the cell is not visible (scrolled out of
 211     // screen).  This is needed to change fonts, colors and so on.
 212     virtual void DrawInvisible(wxDC& WXUNUSED(dc),
 213                                int WXUNUSED(x), int WXUNUSED(y),
 214                                wxHtmlRenderingInfo& WXUNUSED(info)) {}
 215
 216     // This method returns pointer to the FIRST cell for that
 217     // the condition
 218     // is true. It first checks if the condition is true for this
 219     // cell and then calls m_Next->Find(). (Note: it checks
 220     // all subcells if the cell is container)
 221     // Condition is unique condition identifier (see htmldefs.h)
 222     // (user-defined condition IDs should start from 10000)
 223     // and param is optional parameter
 224     // Example : m_Cell->Find(wxHTML_COND_ISANCHOR, "news");
 225     //   returns pointer to anchor news
 226     virtual const wxHtmlCell* Find(int condition, const void* param) const;
 227
 228     // This function is called when mouse button is clicked over the cell.
 229     //
 230     // Parent is pointer to wxHtmlWindow that generated the event
 231     // HINT: if this handling is not enough for you you should use
 232     //       wxHtmlWidgetCell
 233     virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event);
 234
 235     // This method used to adjust pagebreak position. The parameter is variable
 236     // that contains y-coordinate of page break (= horizontal line that should
 237     // not be crossed by words, images etc.). If this cell cannot be divided
 238     // into two pieces (each one on another page) then it moves the pagebreak
 239     // few pixels up.
 240     //
 241     // Returned value : true if pagebreak was modified, false otherwise
 242     // Usage : while (container->AdjustPagebreak(&p)) {}
 243     virtual bool AdjustPagebreak(int *pagebreak,
 244                                  int *known_pagebreaks = NULL,
 245                                  int number_of_pages = 0) const;
 246
 247     // Sets cell's behaviour on pagebreaks (see AdjustPagebreak). Default
 248     // is true - the cell can be split on two pages
 249     void SetCanLiveOnPagebreak(bool can) { m_CanLiveOnPagebreak = can; }
 250
 251     // Returns y-coordinates that contraint the cell, i.e. left is highest
 252     // and right lowest coordinate such that the cell lays between then.
 253     // Note: this method does not return meaningful values if you haven't
 254     //       called Layout() before!
 255     virtual void GetHorizontalConstraints(int *left, int *right) const;
 256
 257     // Returns true for simple == terminal cells, i.e. not composite ones.
 258     // This if for internal usage only and may disappear in future versions!
 259     virtual bool IsTerminalCell() const { return TRUE; }
 260
 261     // Find a cell inside this cell positioned at the given coordinates
 262     // (relative to this's positions). Returns NULL if no such cell exists.
 263     // The flag can be used to specify whether to look for terminal or
 264     // nonterminal cells or both. In either case, returned cell is deepest
 265     // cell in cells tree that contains [x,y].
 266     virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y,
 267                                   unsigned flags = wxHTML_FIND_EXACT) const;
 268
 269     // Returns absolute position of the cell on HTML canvas
 270     wxPoint GetAbsPos() const;
 271
 272     // Returns first (last) terminal cell inside this cell. It may return NULL,
 273     // but it is rare -- only if there are no terminals in the tree.
 274     virtual wxHtmlCell *GetFirstTerminal() const
 275         { return wxConstCast(this, wxHtmlCell); }
 276     virtual wxHtmlCell *GetLastTerminal() const
 277         { return wxConstCast(this, wxHtmlCell); }
 278
 279     // Returns cell's depth, i.e. how far under the root cell it is
 280     // (if it is the root, depth is 0)
 281     unsigned GetDepth() const;
 282
 283     // Returns true if the cell appears before 'cell' in natural order of
 284     // cells (= as they are read). If cell A is (grand)parent of cell B,
 285     // then both A.IsBefore(B) and B.IsBefore(A) always return true.
 286     bool IsBefore(wxHtmlCell *cell) const;
 287
 288     // Converts the cell into text representation. If sel != NULL then
 289     // only part of the cell inside the selection is converted.
 290     virtual wxString ConvertToText(wxHtmlSelection *WXUNUSED(sel)) const
 291         { return wxEmptyString; }
 292
 293 protected:
 294     wxHtmlCell *m_Next;
 295             // pointer to the next cell
 296     wxHtmlContainerCell *m_Parent;
 297             // pointer to parent cell
 298     long m_Width, m_Height, m_Descent;
 299             // dimensions of fragment
 300             // m_Descent is used to position text&images..
 301     long m_PosX, m_PosY;
 302             // position where the fragment is drawn
 303     wxHtmlLinkInfo *m_Link;
 304             // destination address if this fragment is hypertext link, NULL otherwise
 305     bool m_CanLiveOnPagebreak;
 306             // true if this cell can be placed on pagebreak, false otherwise
 307     wxString m_id;
 308             // unique identifier of the cell, generated from "id" property of tags
 309
 310     DECLARE_NO_COPY_CLASS(wxHtmlCell)
 311 };
 312
 313
 314
 315
 316 // ----------------------------------------------------------------------------
 317 // Inherited cells:
 318 // ----------------------------------------------------------------------------
 319
 320
 321 // ----------------------------------------------------------------------------
 322 // wxHtmlWordCell
 323 //                  Single word in input stream.
 324 // ----------------------------------------------------------------------------
 325
 326 class WXDLLEXPORT wxHtmlWordCell : public wxHtmlCell
 327 {
 328 public:
 329     wxHtmlWordCell(const wxString& word, wxDC& dc);
 330     void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
 331               wxHtmlRenderingInfo& info);
 332     wxString ConvertToText(wxHtmlSelection *sel) const;
 333
 334 protected:
 335     void SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const;
 336     void Split(wxDC& dc,
 337                const wxPoint& selFrom, const wxPoint& selTo,
 338                unsigned& pos1, unsigned& pos2) const;
 339
 340     wxString m_Word;
 341 };
 342
 343
 344
 345
 346
 347 // Container contains other cells, thus forming tree structure of rendering
 348 // elements. Basic code of layout algorithm is contained in this class.
 349 class WXDLLEXPORT wxHtmlContainerCell : public wxHtmlCell
 350 {
 351 public:
 352     wxHtmlContainerCell(wxHtmlContainerCell *parent);
 353     ~wxHtmlContainerCell();
 354
 355     virtual void Layout(int w);
 356     virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
 357                       wxHtmlRenderingInfo& info);
 358     virtual void DrawInvisible(wxDC& dc, int x, int y,
 359                                wxHtmlRenderingInfo& info);
 360     virtual bool AdjustPagebreak(int *pagebreak, int *known_pagebreaks = NULL, int number_of_pages = 0) const;
 361
 362     // insert cell at the end of m_Cells list
 363     void InsertCell(wxHtmlCell *cell);
 364
 365     // sets horizontal/vertical alignment
 366     void SetAlignHor(int al) {m_AlignHor = al; m_LastLayout = -1;}
 367     int GetAlignHor() const {return m_AlignHor;}
 368     void SetAlignVer(int al) {m_AlignVer = al; m_LastLayout = -1;}
 369     int GetAlignVer() const {return m_AlignVer;}
 370
 371     // sets left-border indentation. units is one of wxHTML_UNITS_* constants
 372     // what is combination of wxHTML_INDENT_*
 373     void SetIndent(int i, int what, int units = wxHTML_UNITS_PIXELS);
 374     // returns the indentation. ind is one of wxHTML_INDENT_* constants
 375     int GetIndent(int ind) const;
 376     // returns type of value returned by GetIndent(ind)
 377     int GetIndentUnits(int ind) const;
 378
 379     // sets alignment info based on given tag's params
 380     void SetAlign(const wxHtmlTag& tag);
 381     // sets floating width adjustment
 382     // (examples : 32 percent of parent container,
 383     // -15 pixels percent (this means 100 % - 15 pixels)
 384     void SetWidthFloat(int w, int units) {m_WidthFloat = w; m_WidthFloatUnits = units; m_LastLayout = -1;}
 385     void SetWidthFloat(const wxHtmlTag& tag, double pixel_scale = 1.0);
 386     // sets minimal height of this container.
 387     void SetMinHeight(int h, int align = wxHTML_ALIGN_TOP) {m_MinHeight = h; m_MinHeightAlign = align; m_LastLayout = -1;}
 388
 389     void SetBackgroundColour(const wxColour& clr) {m_UseBkColour = TRUE; m_BkColour = clr;}
 390     // returns background colour (of wxNullColour if none set), so that widgets can
 391     // adapt to it:
 392     wxColour GetBackgroundColour();
 393     void SetBorder(const wxColour& clr1, const wxColour& clr2) {m_UseBorder = TRUE; m_BorderColour1 = clr1, m_BorderColour2 = clr2;}
 394     virtual wxHtmlLinkInfo* GetLink(int x = 0, int y = 0) const;
 395     virtual const wxHtmlCell* Find(int condition, const void* param) const;
 396     virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event);
 397     virtual void GetHorizontalConstraints(int *left, int *right) const;
 398
 399     virtual wxHtmlCell* GetFirstChild() const { return m_Cells; }
 400 #if WXWIN_COMPATIBILITY_2_4
 401     wxDEPRECATED( wxHtmlCell* GetFirstCell() const );
 402 #endif
 403
 404     // see comment in wxHtmlCell about this method
 405     virtual bool IsTerminalCell() const { return FALSE; }
 406
 407     virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y,
 408                                   unsigned flags = wxHTML_FIND_EXACT) const;
 409
 410     virtual wxHtmlCell *GetFirstTerminal() const;
 411     virtual wxHtmlCell *GetLastTerminal() const;
 412
 413 protected:
 414     void UpdateRenderingStatePre(wxHtmlRenderingInfo& info,
 415                                  wxHtmlCell *cell) const;
 416     void UpdateRenderingStatePost(wxHtmlRenderingInfo& info,
 417                                   wxHtmlCell *cell) const;
 418
 419 protected:
 420     int m_IndentLeft, m_IndentRight, m_IndentTop, m_IndentBottom;
 421             // indentation of subcells. There is always m_Indent pixels
 422             // big space between given border of the container and the subcells
 423             // it m_Indent < 0 it is in PERCENTS, otherwise it is in pixels
 424     int m_MinHeight, m_MinHeightAlign;
 425         // minimal height.
 426     wxHtmlCell *m_Cells, *m_LastCell;
 427             // internal cells, m_Cells points to the first of them, m_LastCell to the last one.
 428             // (LastCell is needed only to speed-up InsertCell)
 429     int m_AlignHor, m_AlignVer;
 430             // alignment horizontal and vertical (left, center, right)
 431     int m_WidthFloat, m_WidthFloatUnits;
 432             // width float is used in adjustWidth
 433     bool m_UseBkColour;
 434     wxColour m_BkColour;
 435             // background color of this container
 436     bool m_UseBorder;
 437     wxColour m_BorderColour1, m_BorderColour2;
 438             // borders color of this container
 439     int m_LastLayout;
 440             // if != -1 then call to Layout may be no-op
 441             // if previous call to Layout has same argument
 442
 443     DECLARE_NO_COPY_CLASS(wxHtmlContainerCell)
 444 };
 445
 446 #if WXWIN_COMPATIBILITY_2_4
 447 inline wxHtmlCell* wxHtmlContainerCell::GetFirstCell() const
 448     { return GetFirstChild(); }
 449 #endif
 450
 451
 452
 453
 454 // ---------------------------------------------------------------------------
 455 // wxHtmlColourCell
 456 //                  Color changer.
 457 // ---------------------------------------------------------------------------
 458
 459 class WXDLLEXPORT wxHtmlColourCell : public wxHtmlCell
 460 {
 461 public:
 462     wxHtmlColourCell(const wxColour& clr, int flags = wxHTML_CLR_FOREGROUND) : wxHtmlCell() {m_Colour = clr; m_Flags = flags;}
 463     virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
 464                       wxHtmlRenderingInfo& info);
 465     virtual void DrawInvisible(wxDC& dc, int x, int y,
 466                                wxHtmlRenderingInfo& info);
 467
 468 protected:
 469     wxColour m_Colour;
 470     unsigned m_Flags;
 471 };
 472
 473
 474
 475
 476 //--------------------------------------------------------------------------------
 477 // wxHtmlFontCell
 478 //                  Sets actual font used for text rendering
 479 //--------------------------------------------------------------------------------
 480
 481 class WXDLLEXPORT wxHtmlFontCell : public wxHtmlCell
 482 {
 483 public:
 484     wxHtmlFontCell(wxFont *font) : wxHtmlCell() { m_Font = (*font); }
 485     virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
 486                       wxHtmlRenderingInfo& info);
 487     virtual void DrawInvisible(wxDC& dc, int x, int y,
 488                                wxHtmlRenderingInfo& info);
 489
 490 protected:
 491     wxFont m_Font;
 492 };
 493
 494
 495
 496
 497
 498
 499 //--------------------------------------------------------------------------------
 500 // wxHtmlwidgetCell
 501 //                  This cell is connected with wxWindow object
 502 //                  You can use it to insert windows into HTML page
 503 //                  (buttons, input boxes etc.)
 504 //--------------------------------------------------------------------------------
 505
 506 class WXDLLEXPORT wxHtmlWidgetCell : public wxHtmlCell
 507 {
 508 public:
 509     // !!! wnd must have correct parent!
 510     // if w != 0 then the m_Wnd has 'floating' width - it adjust
 511     // it's width according to parent container's width
 512     // (w is percent of parent's width)
 513     wxHtmlWidgetCell(wxWindow *wnd, int w = 0);
 514     ~wxHtmlWidgetCell() { m_Wnd->Destroy(); }
 515     virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
 516                       wxHtmlRenderingInfo& info);
 517     virtual void DrawInvisible(wxDC& dc, int x, int y,
 518                                wxHtmlRenderingInfo& info);
 519     virtual void Layout(int w);
 520
 521 protected:
 522     wxWindow* m_Wnd;
 523     int m_WidthFloat;
 524             // width float is used in adjustWidth (it is in percents)
 525
 526     DECLARE_NO_COPY_CLASS(wxHtmlWidgetCell)
 527 };
 528
 529
 530
 531 //--------------------------------------------------------------------------------
 532 // wxHtmlLinkInfo
 533 //                  Internal data structure. It represents hypertext link
 534 //--------------------------------------------------------------------------------
 535
 536 class WXDLLEXPORT wxHtmlLinkInfo : public wxObject
 537 {
 538 public:
 539     wxHtmlLinkInfo() : wxObject()
 540           { m_Href = m_Target = wxEmptyString; m_Event = NULL, m_Cell = NULL; }
 541     wxHtmlLinkInfo(const wxString& href, const wxString& target = wxEmptyString) : wxObject()
 542           { m_Href = href; m_Target = target; m_Event = NULL, m_Cell = NULL; }
 543     wxHtmlLinkInfo(const wxHtmlLinkInfo& l) : wxObject()
 544           { m_Href = l.m_Href, m_Target = l.m_Target, m_Event = l.m_Event;
 545             m_Cell = l.m_Cell; }
 546     wxHtmlLinkInfo& operator=(const wxHtmlLinkInfo& l)
 547           { m_Href = l.m_Href, m_Target = l.m_Target, m_Event = l.m_Event;
 548             m_Cell = l.m_Cell; return *this; }
 549
 550     void SetEvent(const wxMouseEvent *e) { m_Event = e; }
 551     void SetHtmlCell(const wxHtmlCell *e) { m_Cell = e; }
 552
 553     wxString GetHref() const { return m_Href; }
 554     wxString GetTarget() const { return m_Target; }
 555     const wxMouseEvent* GetEvent() const { return m_Event; }
 556     const wxHtmlCell* GetHtmlCell() const { return m_Cell; }
 557
 558 private:
 559     wxString m_Href, m_Target;
 560     const wxMouseEvent *m_Event;
 561     const wxHtmlCell *m_Cell;
 562 };
 563
 564
 565
 566 // ----------------------------------------------------------------------------
 567 // wxHtmlTerminalCellsInterator
 568 // ----------------------------------------------------------------------------
 569
 570 class WXDLLEXPORT wxHtmlTerminalCellsInterator
 571 {
 572 public:
 573     wxHtmlTerminalCellsInterator(const wxHtmlCell *from, const wxHtmlCell *to)
 574         : m_to(to), m_pos(from) {}
 575
 576     operator bool() const { return m_pos != NULL; }
 577     const wxHtmlCell* operator++();
 578     const wxHtmlCell* operator->() const { return m_pos; }
 579     const wxHtmlCell* operator*() const { return m_pos; }
 580
 581 private:
 582     const wxHtmlCell *m_to, *m_pos;
 583 };
 584
 585
 586
 587 #endif // wxUSE_HTML
 588
 589 #endif // _WX_HTMLCELL_H_
 590