updated header file name in source

[wxWidgets.git] / src / html / htmlcell.cpp

diff --git a/src/html/htmlcell.cpp b/src/html/htmlcell.cpp
index 6979805f45fd302dc65e6dc5dad703716a108a75..3a100af4d6c65654147fa1d37217c66967ccac9d 100644 (file)
--- a/src/html/htmlcell.cpp
+++ b/src/html/htmlcell.cpp
@@ -1,114 +1,665 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        htmlcell.cpp
+// Name:        src/html/htmlcell.cpp

 // Purpose:     wxHtmlCell - basic element of HTML output
 // Author:      Vaclav Slavik
 // RCS-ID:      $Id$
 // Copyright:   (c) 1999 Vaclav Slavik
 // Purpose:     wxHtmlCell - basic element of HTML output
 // Author:      Vaclav Slavik
 // RCS-ID:      $Id$
 // Copyright:   (c) 1999 Vaclav Slavik

-// Licence:     wxWindows Licence
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation
-#endif
-

 #include "wx/wxprec.h"
 
 #include "wx/wxprec.h"
 

-#if wxUSE_HTML
-
-#ifdef __BORDLANDC__
-#pragma hdrstop
+#ifdef __BORLANDC__
+    #pragma hdrstop

 #endif
 
 #endif
 

+#if wxUSE_HTML && wxUSE_STREAMS
+

 #ifndef WXPRECOMP
 #ifndef WXPRECOMP

-#include "wx/wx.h"
+    #include "wx/dynarray.h"
+    #include "wx/brush.h"
+    #include "wx/colour.h"
+    #include "wx/dc.h"
+    #include "wx/settings.h"

 #endif
 
 #include "wx/html/htmlcell.h"
 #include "wx/html/htmlwin.h"
 #endif
 
 #include "wx/html/htmlcell.h"
 #include "wx/html/htmlwin.h"

+#include "wx/module.h"
+

 #include <stdlib.h>
 
 #include <stdlib.h>
 

+//-----------------------------------------------------------------------------
+// Helper classes
+//-----------------------------------------------------------------------------
+
+void wxHtmlSelection::Set(const wxPoint& fromPos, const wxHtmlCell *fromCell,
+                          const wxPoint& toPos, const wxHtmlCell *toCell)
+{
+    m_fromCell = fromCell;
+    m_toCell = toCell;
+    m_fromPos = fromPos;
+    m_toPos = toPos;
+}
+
+void wxHtmlSelection::Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell)
+{
+    wxPoint p1 = fromCell ? fromCell->GetAbsPos() : wxDefaultPosition;
+    wxPoint p2 = toCell ? toCell->GetAbsPos() : wxDefaultPosition;
+    if ( toCell )
+    {
+        p2.x += toCell->GetWidth();
+        p2.y += toCell->GetHeight();
+    }
+    Set(p1, fromCell, p2, toCell);
+}
+
+wxColour
+wxDefaultHtmlRenderingStyle::
+GetSelectedTextColour(const wxColour& WXUNUSED(clr))
+{
+    return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
+}
+
+wxColour
+wxDefaultHtmlRenderingStyle::
+GetSelectedTextBgColour(const wxColour& WXUNUSED(clr))
+{
+    return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
+}
+

 
 //-----------------------------------------------------------------------------
 // wxHtmlCell
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 // wxHtmlCell
 //-----------------------------------------------------------------------------
 

+IMPLEMENT_ABSTRACT_CLASS(wxHtmlCell, wxObject)
+
+wxHtmlCell::wxHtmlCell() : wxObject()
+{
+    m_Next = NULL;
+    m_Parent = NULL;
+    m_Width = m_Height = m_Descent = 0;
+    m_ScriptMode = wxHTML_SCRIPT_NORMAL;        // <sub> or <sup> mode
+    m_ScriptBaseline = 0;                       // <sub> or <sup> baseline
+    m_CanLiveOnPagebreak = true;
+    m_Link = NULL;
+}
+
+wxHtmlCell::~wxHtmlCell()
+{
+    delete m_Link;
+}
+
+// Update the descent value when whe are in a <sub> or <sup>.
+// prevbase is the parent base
+void wxHtmlCell::SetScriptMode(wxHtmlScriptMode mode, long previousBase)
+{
+    m_ScriptMode = mode;
+
+    if (mode == wxHTML_SCRIPT_SUP)
+        m_ScriptBaseline = previousBase - (m_Height + 1) / 2;
+    else if (mode == wxHTML_SCRIPT_SUB)
+        m_ScriptBaseline = previousBase + (m_Height + 1) / 6;
+    else
+        m_ScriptBaseline = 0;
+
+    m_Descent += m_ScriptBaseline;
+}
+
+#if WXWIN_COMPATIBILITY_2_6
+
+struct wxHtmlCellOnMouseClickCompatHelper;
+
+static wxHtmlCellOnMouseClickCompatHelper *gs_helperOnMouseClick = NULL;
+
+// helper for routing calls to new ProcessMouseClick() method to deprecated
+// OnMouseClick() method
+struct wxHtmlCellOnMouseClickCompatHelper
+{
+    wxHtmlCellOnMouseClickCompatHelper(wxHtmlWindowInterface *window_,
+                                       const wxPoint& pos_,
+                                       const wxMouseEvent& event_)
+        : window(window_), pos(pos_), event(event_), retval(false)
+    {
+    }
+
+    bool CallOnMouseClick(wxHtmlCell *cell)
+    {
+        wxHtmlCellOnMouseClickCompatHelper *oldHelper = gs_helperOnMouseClick;
+        gs_helperOnMouseClick = this;
+        cell->OnMouseClick
+              (
+                window ? window->GetHTMLWindow() : NULL,
+                pos.x, pos.y,
+                event
+              );
+        gs_helperOnMouseClick = oldHelper;
+        return retval;
+    }
+
+    wxHtmlWindowInterface *window;
+    const wxPoint& pos;
+    const wxMouseEvent& event;
+    bool retval;
+};
+#endif // WXWIN_COMPATIBILITY_2_6

 
 

-void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y,
-                              bool WXUNUSED(left),
-                              bool WXUNUSED(middle),
-                              bool WXUNUSED(right))
+bool wxHtmlCell::ProcessMouseClick(wxHtmlWindowInterface *window,
+                                   const wxPoint& pos,
+                                   const wxMouseEvent& event)

 {
 {

-    wxString lnk = GetLink(x, y);
-    if (lnk != wxEmptyString)
-        ((wxHtmlWindow*)parent) -> OnLinkClicked(lnk);
-        // note : this overcasting is legal because parent is *always* wxHtmlWindow
+    wxCHECK_MSG( window, false, _T("window interface must be provided") );
+
+#if WXWIN_COMPATIBILITY_2_6
+    // NB: this hack puts the body of ProcessMouseClick() into OnMouseClick()
+    //     (for which it has to pass the arguments and return value via a
+    //     helper variable because these two methods have different
+    //     signatures), so that old code overriding OnMouseClick will continue
+    //     to work
+    wxHtmlCellOnMouseClickCompatHelper compat(window, pos, event);
+    return compat.CallOnMouseClick(this);

 }
 
 }
 

+void wxHtmlCell::OnMouseClick(wxWindow *, int, int, const wxMouseEvent& event)
+{
+    wxCHECK_RET( gs_helperOnMouseClick, _T("unexpected call to OnMouseClick") );
+    wxHtmlWindowInterface *window = gs_helperOnMouseClick->window;
+    const wxPoint& pos = gs_helperOnMouseClick->pos;
+#endif // WXWIN_COMPATIBILITY_2_6
+
+    wxHtmlLinkInfo *lnk = GetLink(pos.x, pos.y);
+    bool retval = false;
+
+    if (lnk)
+    {
+        wxHtmlLinkInfo lnk2(*lnk);
+        lnk2.SetEvent(&event);
+        lnk2.SetHtmlCell(this);
+
+        window->OnHTMLLinkClicked(lnk2);
+        retval = true;
+    }

 
 

+#if WXWIN_COMPATIBILITY_2_6
+    gs_helperOnMouseClick->retval = retval;
+#else
+    return retval;
+#endif // WXWIN_COMPATIBILITY_2_6
+}

 
 

-bool wxHtmlCell::AdjustPagebreak(int *pagebreak)
+#if WXWIN_COMPATIBILITY_2_6
+wxCursor wxHtmlCell::GetCursor() const

 {
 {

+    return wxNullCursor;
+}
+#endif // WXWIN_COMPATIBILITY_2_6

 
 

-    if ((!m_CanLiveOnPagebreak) && 
-                m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak) {
+wxCursor wxHtmlCell::GetMouseCursor(wxHtmlWindowInterface *window) const
+{
+#if WXWIN_COMPATIBILITY_2_6
+    // NB: Older versions of wx used GetCursor() virtual method in place of
+    //     GetMouseCursor(interface). This code ensures that user code that
+    //     overriden GetCursor() continues to work. The trick is that the base
+    //     wxHtmlCell::GetCursor() method simply returns wxNullCursor, so we
+    //     know that GetCursor() was overriden iff it returns valid cursor.
+    wxCursor cur = GetCursor();
+    if (cur.Ok())
+        return cur;
+#endif // WXWIN_COMPATIBILITY_2_6
+
+    if ( GetLink() )
+    {
+        return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Link);
+    }
+    else
+    {
+        return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Default);
+    }
+}
+
+
+bool wxHtmlCell::AdjustPagebreak(int *pagebreak,
+                                 wxArrayInt& WXUNUSED(known_pagebreaks)) const
+{
+    if ((!m_CanLiveOnPagebreak) &&
+                m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
+    {

         *pagebreak = m_PosY;
         *pagebreak = m_PosY;

-        if (m_Next != NULL) m_Next -> AdjustPagebreak(pagebreak);
-        return TRUE;
+        return true;
+    }
+
+    return false;
+}
+
+
+
+void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link)
+{
+    if (m_Link) delete m_Link;
+    m_Link = NULL;
+    if (link.GetHref() != wxEmptyString)
+        m_Link = new wxHtmlLinkInfo(link);
+}
+
+
+void wxHtmlCell::Layout(int WXUNUSED(w))
+{
+    SetPos(0, 0);
+}
+
+
+
+const wxHtmlCell* wxHtmlCell::Find(int WXUNUSED(condition), const void* WXUNUSED(param)) const
+{
+    return NULL;
+}
+
+
+wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y,
+                                      unsigned flags) const
+{
+    if ( x >= 0 && x < m_Width && y >= 0 && y < m_Height )
+    {
+        return wxConstCast(this, wxHtmlCell);

     }
     }

-    
-    else {
-        if (m_Next != NULL) return m_Next -> AdjustPagebreak(pagebreak);
-        else return FALSE;
+    else
+    {
+        if ((flags & wxHTML_FIND_NEAREST_AFTER) &&
+                (y < 0 || (y < 0+m_Height && x < 0+m_Width)))
+            return wxConstCast(this, wxHtmlCell);
+        else if ((flags & wxHTML_FIND_NEAREST_BEFORE) &&
+                (y >= 0+m_Height || (y >= 0 && x >= 0)))
+            return wxConstCast(this, wxHtmlCell);
+        else
+            return NULL;

     }
 }
 
 
     }
 }
 
 

+wxPoint wxHtmlCell::GetAbsPos(wxHtmlCell *rootCell) const
+{
+    wxPoint p(m_PosX, m_PosY);
+    for (wxHtmlCell *parent = m_Parent; parent && parent != rootCell;
+         parent = parent->m_Parent)
+    {
+        p.x += parent->m_PosX;
+        p.y += parent->m_PosY;
+    }
+    return p;
+}
+
+wxHtmlCell *wxHtmlCell::GetRootCell() const
+{
+    wxHtmlCell *c = wxConstCast(this, wxHtmlCell);
+    while ( c->m_Parent )
+        c = c->m_Parent;
+    return c;
+}
+
+unsigned wxHtmlCell::GetDepth() const
+{
+    unsigned d = 0;
+    for (wxHtmlCell *p = m_Parent; p; p = p->m_Parent)
+        d++;
+    return d;
+}
+
+bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const
+{
+    const wxHtmlCell *c1 = this;
+    const wxHtmlCell *c2 = cell;
+    unsigned d1 = GetDepth();
+    unsigned d2 = cell->GetDepth();
+
+    if ( d1 > d2 )
+        for (; d1 != d2; d1-- )
+            c1 = c1->m_Parent;
+    else if ( d1 < d2 )
+        for (; d1 != d2; d2-- )
+            c2 = c2->m_Parent;
+
+    if ( cell == this )
+        return true;
+
+    while ( c1 && c2 )
+    {
+        if ( c1->m_Parent == c2->m_Parent )
+        {
+            while ( c1 )
+            {
+                if ( c1 == c2 )
+                    return true;
+                c1 = c1->GetNext();
+            }
+            return false;
+        }
+        else
+        {
+            c1 = c1->m_Parent;
+            c2 = c2->m_Parent;
+        }
+    }
+
+    wxFAIL_MSG(_T("Cells are in different trees"));
+    return false;
+}

 
 
 //-----------------------------------------------------------------------------
 // wxHtmlWordCell
 //-----------------------------------------------------------------------------
 
 
 
 //-----------------------------------------------------------------------------
 // wxHtmlWordCell
 //-----------------------------------------------------------------------------
 

-wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell()
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlWordCell, wxHtmlCell)
+
+wxHtmlWordCell::wxHtmlWordCell(const wxString& word, const wxDC& dc) : wxHtmlCell()

 {
     m_Word = word;
 {
     m_Word = word;

-    m_Word.Replace("&nbsp;", " ", TRUE);
-    m_Word.Replace("&quot;", "\"", TRUE);
-    m_Word.Replace("&lt;", "<", TRUE);
-    m_Word.Replace("&gt;", ">", TRUE);
-    m_Word.Replace("&amp;", "&", TRUE);

     dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);
     dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);

-    SetCanLiveOnPagebreak(FALSE);
+    SetCanLiveOnPagebreak(false);
+    m_allowLinebreak = true;
+}
+
+void wxHtmlWordCell::SetPreviousWord(wxHtmlWordCell *cell)
+{
+    if ( cell && m_Parent == cell->m_Parent &&
+         !wxIsspace(cell->m_Word.Last()) && !wxIsspace(m_Word[0u]) )
+    {
+        m_allowLinebreak = false;
+    }
+}
+
+// Splits m_Word into up to three parts according to selection, returns
+// substring before, in and after selection and the points (in relative coords)
+// where s2 and s3 start:
+void wxHtmlWordCell::Split(const wxDC& dc,
+                           const wxPoint& selFrom, const wxPoint& selTo,
+                           unsigned& pos1, unsigned& pos2) const
+{
+    wxPoint pt1 = (selFrom == wxDefaultPosition) ?
+                   wxDefaultPosition : selFrom - GetAbsPos();
+    wxPoint pt2 = (selTo == wxDefaultPosition) ?
+                   wxPoint(m_Width, wxDefaultCoord) : selTo - GetAbsPos();
+
+    unsigned len = m_Word.length();
+    unsigned i = 0;
+    pos1 = 0;
+
+    // adjust for cases when the start/end position is completely
+    // outside the cell:
+    if ( pt1.y < 0 )
+        pt1.x = 0;
+    if ( pt2.y >= m_Height )
+        pt2.x = m_Width;
+
+    // before selection:
+#ifdef __WXMAC__
+    // implementation using PartialExtents to support fractional widths
+    wxArrayInt widths ;
+    dc.GetPartialTextExtents(m_Word,widths) ;
+    while( i < len && pt1.x >= widths[i] )
+        i++ ;
+#else // __WXMAC__
+    wxCoord charW, charH;
+    while ( pt1.x > 0 && i < len )
+    {
+        dc.GetTextExtent(m_Word[i], &charW, &charH);
+        pt1.x -= charW;
+        if ( pt1.x >= 0 )
+        {
+            pos1 += charW;
+            i++;
+        }
+    }
+#endif // __WXMAC__/!__WXMAC__
+
+    // in selection:
+    unsigned j = i;
+#ifdef __WXMAC__
+    while( j < len && pt2.x >= widths[j] )
+        j++ ;
+#else // __WXMAC__
+    pos2 = pos1;
+    pt2.x -= pos2;
+    while ( pt2.x > 0 && j < len )
+    {
+        dc.GetTextExtent(m_Word[j], &charW, &charH);
+        pt2.x -= charW;
+        if ( pt2.x >= 0 )
+        {
+            pos2 += charW;
+            j++;
+        }
+    }
+#endif // __WXMAC__/!__WXMAC__
+
+    pos1 = i;
+    pos2 = j;
+}
+
+void wxHtmlWordCell::SetSelectionPrivPos(const wxDC& dc, wxHtmlSelection *s) const
+{
+    unsigned p1, p2;
+
+    Split(dc,
+          this == s->GetFromCell() ? s->GetFromPos() : wxDefaultPosition,
+          this == s->GetToCell() ? s->GetToPos() : wxDefaultPosition,
+          p1, p2);
+
+    wxPoint p(0, m_Word.length());
+
+    if ( this == s->GetFromCell() )
+        p.x = p1; // selection starts here
+    if ( this == s->GetToCell() )
+        p.y = p2; // selection ends here
+
+    if ( this == s->GetFromCell() )
+        s->SetFromPrivPos(p);
+    if ( this == s->GetToCell() )
+        s->SetToPrivPos(p);

 }
 
 
 }
 
 

+static void SwitchSelState(wxDC& dc, wxHtmlRenderingInfo& info,
+                           bool toSelection)
+{
+    wxColour fg = info.GetState().GetFgColour();
+    wxColour bg = info.GetState().GetBgColour();
+
+    if ( toSelection )
+    {
+        dc.SetBackgroundMode(wxSOLID);
+        dc.SetTextForeground(info.GetStyle().GetSelectedTextColour(fg));
+        dc.SetTextBackground(info.GetStyle().GetSelectedTextBgColour(bg));
+        dc.SetBackground(wxBrush(info.GetStyle().GetSelectedTextBgColour(bg),
+                                 wxSOLID));
+    }
+    else
+    {
+        dc.SetBackgroundMode(wxTRANSPARENT);
+        dc.SetTextForeground(fg);
+        dc.SetTextBackground(bg);
+        dc.SetBackground(wxBrush(bg, wxSOLID));
+    }
+}
+
+
+void wxHtmlWordCell::Draw(wxDC& dc, int x, int y,
+                          int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+                          wxHtmlRenderingInfo& info)
+{
+#if 0 // useful for debugging
+    dc.SetPen(*wxBLACK_PEN);
+    dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width /* VZ: +1? */ ,m_Height);
+#endif
+
+    bool drawSelectionAfterCell = false;
+
+    if ( info.GetState().GetSelectionState() == wxHTML_SEL_CHANGING )
+    {
+        // Selection changing, we must draw the word piecewise:
+        wxHtmlSelection *s = info.GetSelection();
+        wxString txt;
+        int w, h;
+        int ofs = 0;
+
+        wxPoint priv = (this == s->GetFromCell()) ?
+                           s->GetFromPrivPos() : s->GetToPrivPos();
+
+        // NB: this is quite a hack: in order to compute selection boundaries
+        //     (in word's characters) we must know current font, which is only
+        //     possible inside rendering code. Therefore we update the
+        //     information here and store it in wxHtmlSelection so that
+        //     ConvertToText can use it later:
+        if ( priv == wxDefaultPosition )
+        {
+            SetSelectionPrivPos(dc, s);
+            priv = (this == s->GetFromCell()) ?
+                    s->GetFromPrivPos() : s->GetToPrivPos();
+        }
+
+        int part1 = priv.x;
+        int part2 = priv.y;
+
+        if ( part1 > 0 )
+        {
+            txt = m_Word.Mid(0, part1);
+            dc.DrawText(txt, x + m_PosX, y + m_PosY);
+            dc.GetTextExtent(txt, &w, &h);
+            ofs += w;
+        }
+
+        SwitchSelState(dc, info, true);
+
+        txt = m_Word.Mid(part1, part2-part1);
+        dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY);

 
 

-void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+        if ( (size_t)part2 < m_Word.length() )
+        {
+            dc.GetTextExtent(txt, &w, &h);
+            ofs += w;
+            SwitchSelState(dc, info, false);
+            txt = m_Word.Mid(part2);
+            dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY);
+        }
+        else
+            drawSelectionAfterCell = true;
+    }
+    else
+    {
+        wxHtmlSelectionState selstate = info.GetState().GetSelectionState();
+        // Not changing selection state, draw the word in single mode:
+        if ( selstate != wxHTML_SEL_OUT &&
+             dc.GetBackgroundMode() != wxSOLID )
+        {
+            SwitchSelState(dc, info, true);
+        }
+        else if ( selstate == wxHTML_SEL_OUT &&
+                  dc.GetBackgroundMode() == wxSOLID )
+        {
+            SwitchSelState(dc, info, false);
+        }
+        dc.DrawText(m_Word, x + m_PosX, y + m_PosY);
+        drawSelectionAfterCell = (selstate != wxHTML_SEL_OUT);
+    }
+
+    // NB: If the text is justified then there is usually some free space
+    //     between adjacent cells and drawing the selection only onto cells
+    //     would result in ugly unselected spaces. The code below detects
+    //     this special case and renders the selection *outside* the sell,
+    //     too.
+    if ( m_Parent->GetAlignHor() == wxHTML_ALIGN_JUSTIFY &&
+         drawSelectionAfterCell )
+    {
+        wxHtmlCell *nextCell = m_Next;
+        while ( nextCell && nextCell->IsFormattingCell() )
+            nextCell = nextCell->GetNext();
+        if ( nextCell )
+        {
+            int nextX = nextCell->GetPosX();
+            if ( m_PosX + m_Width < nextX )
+            {
+                dc.SetBrush(dc.GetBackground());
+                dc.SetPen(*wxTRANSPARENT_PEN);
+                dc.DrawRectangle(x + m_PosX + m_Width, y + m_PosY,
+                                 nextX - m_PosX - m_Width, m_Height);
+            }
+        }
+    }
+}
+
+
+wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *s) const

 {
 {

-    dc.DrawText(m_Word, x + m_PosX, y + m_PosY);
-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
+    if ( s && (this == s->GetFromCell() || this == s->GetToCell()) )
+    {
+        wxPoint priv = this == s->GetFromCell() ? s->GetFromPrivPos()
+                                                : s->GetToPrivPos();
+
+        // VZ: we may be called before we had a chance to re-render ourselves
+        //     and in this case GetFrom/ToPrivPos() is not set yet -- assume
+        //     that this only happens in case of a double/triple click (which
+        //     seems to be the case now) and so it makes sense to select the
+        //     entire contents of the cell in this case
+        //
+        // TODO: but this really needs to be fixed in some better way later...
+        if ( priv != wxDefaultPosition )
+        {
+            int part1 = priv.x;
+            int part2 = priv.y;
+            return m_Word.Mid(part1, part2-part1);
+        }
+        //else: return the whole word below
+    }
+
+    return m_Word;

 }
 
 }
 

+wxCursor wxHtmlWordCell::GetMouseCursor(wxHtmlWindowInterface *window) const
+{
+    if ( !GetLink() )
+    {
+        return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Text);
+    }
+    else
+    {
+        return wxHtmlCell::GetMouseCursor(window);
+    }
+}

 
 
 //-----------------------------------------------------------------------------
 // wxHtmlContainerCell
 //-----------------------------------------------------------------------------
 
 
 
 //-----------------------------------------------------------------------------
 // wxHtmlContainerCell
 //-----------------------------------------------------------------------------
 

+IMPLEMENT_ABSTRACT_CLASS(wxHtmlContainerCell, wxHtmlCell)

 
 wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCell()
 {
     m_Cells = m_LastCell = NULL;
     m_Parent = parent;
 
 wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCell()
 {
     m_Cells = m_LastCell = NULL;
     m_Parent = parent;

-    if (m_Parent) m_Parent -> InsertCell(this);
+    m_MaxTotalWidth = 0;
+    if (m_Parent) m_Parent->InsertCell(this);

     m_AlignHor = wxHTML_ALIGN_LEFT;
     m_AlignVer = wxHTML_ALIGN_BOTTOM;
     m_IndentLeft = m_IndentRight = m_IndentTop = m_IndentBottom = 0;
     m_WidthFloat = 100; m_WidthFloatUnits = wxHTML_UNITS_PERCENT;
     m_AlignHor = wxHTML_ALIGN_LEFT;
     m_AlignVer = wxHTML_ALIGN_BOTTOM;
     m_IndentLeft = m_IndentRight = m_IndentTop = m_IndentBottom = 0;
     m_WidthFloat = 100; m_WidthFloatUnits = wxHTML_UNITS_PERCENT;

-    m_UseBkColour = FALSE;
-    m_UseBorder = FALSE;
-    m_MinHeight = m_MaxLineWidth = 0;
+    m_UseBkColour = false;
+    m_UseBorder = false;
+    m_MinHeight = 0;

     m_MinHeightAlign = wxHTML_ALIGN_TOP;
     m_MinHeightAlign = wxHTML_ALIGN_TOP;

+    m_LastLayout = -1;
+}
+
+wxHtmlContainerCell::~wxHtmlContainerCell()
+{
+    wxHtmlCell *cell = m_Cells;
+    while ( cell )
+    {
+        wxHtmlCell *cellNext = cell->GetNext();
+        delete cell;
+        cell = cellNext;
+    }

 }
 
 
 }
 
 


@@ -120,6 +671,7 @@ void wxHtmlContainerCell::SetIndent(int i, int what, int units)
     if (what & wxHTML_INDENT_RIGHT) m_IndentRight = val;
     if (what & wxHTML_INDENT_TOP) m_IndentTop = val;
     if (what & wxHTML_INDENT_BOTTOM) m_IndentBottom = val;
     if (what & wxHTML_INDENT_RIGHT) m_IndentRight = val;
     if (what & wxHTML_INDENT_TOP) m_IndentTop = val;
     if (what & wxHTML_INDENT_BOTTOM) m_IndentBottom = val;

+    m_LastLayout = -1;

 }
 
 
 }
 
 


@@ -138,7 +690,7 @@ int wxHtmlContainerCell::GetIndent(int ind) const
 
 int wxHtmlContainerCell::GetIndentUnits(int ind) const
 {
 
 int wxHtmlContainerCell::GetIndentUnits(int ind) const
 {

-    bool p = FALSE;
+    bool p = false;

     if (ind & wxHTML_INDENT_LEFT) p = m_IndentLeft < 0;
     else if (ind & wxHTML_INDENT_RIGHT) p = m_IndentRight < 0;
     else if (ind & wxHTML_INDENT_TOP) p = m_IndentTop < 0;
     if (ind & wxHTML_INDENT_LEFT) p = m_IndentLeft < 0;
     else if (ind & wxHTML_INDENT_RIGHT) p = m_IndentRight < 0;
     else if (ind & wxHTML_INDENT_TOP) p = m_IndentTop < 0;


@@ -148,35 +700,57 @@ int wxHtmlContainerCell::GetIndentUnits(int ind) const
 }
 
 
 }
 
 

-
-bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak)
+bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak,
+                                          wxArrayInt& known_pagebreaks) const

 {
 {

-    if (!m_CanLiveOnPagebreak) 
-        return wxHtmlCell::AdjustPagebreak(pagebreak);
-
-    else {
-        wxHtmlCell *c = GetFirstCell();
-        bool rt = FALSE;
-        int pbrk = *pagebreak - m_PosY;
-
-        while (c) {
-            if (c -> AdjustPagebreak(&pbrk)) rt = TRUE;
-            c = c -> GetNext();
-        }
-        if (rt) *pagebreak = pbrk + m_PosY;
-        return rt;
+    if (!m_CanLiveOnPagebreak)
+        return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks);
+
+    wxHtmlCell *c = GetFirstChild();
+    bool rt = false;
+    int pbrk = *pagebreak - m_PosY;
+
+    while (c)
+    {
+        if (c->AdjustPagebreak(&pbrk, known_pagebreaks))
+            rt = true;
+        c = c->GetNext();

     }
     }

+    if (rt)
+        *pagebreak = pbrk + m_PosY;
+    return rt;

 }
 
 
 }
 
 

-

 void wxHtmlContainerCell::Layout(int w)
 {
 void wxHtmlContainerCell::Layout(int w)
 {

-    wxHtmlCell *cell = m_Cells, *line = m_Cells;
+    wxHtmlCell::Layout(w);
+
+    if (m_LastLayout == w) return;
+
+    // VS: Any attempt to layout with negative or zero width leads to hell,
+    // but we can't ignore such attempts completely, since it sometimes
+    // happen (e.g. when trying how small a table can be). The best thing we
+    // can do is to set the width of child cells to zero
+    if (w < 1)
+    {
+       m_Width = 0;
+       for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+            cell->Layout(0);
+            // this does two things: it recursively calls this code on all
+            // child contrainers and resets children's position to (0,0)
+       return;
+    }
+
+    wxHtmlCell *nextCell;

     long xpos = 0, ypos = m_IndentTop;
     int xdelta = 0, ybasicpos = 0, ydiff;
     long xpos = 0, ypos = m_IndentTop;
     int xdelta = 0, ybasicpos = 0, ydiff;

-    int s_width, s_indent;
+    int s_width, nextWordWidth, s_indent;

     int ysizeup = 0, ysizedown = 0;
     int ysizeup = 0, ysizedown = 0;

+    int MaxLineWidth = 0;
+    int curLineWidth = 0;
+    m_MaxTotalWidth = 0;
+

 
     /*
 
 
     /*
 


@@ -184,19 +758,23 @@ void wxHtmlContainerCell::Layout(int w)
 
     */
 
 
     */
 

-    if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT) {
+    if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
+    {

         if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
         else m_Width = m_WidthFloat * w / 100;
     }
         if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
         else m_Width = m_WidthFloat * w / 100;
     }

-    else {
+    else
+    {

         if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
         else m_Width = m_WidthFloat;
     }
 
         if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
         else m_Width = m_WidthFloat;
     }
 

-    if (m_Cells) {
+    if (m_Cells)
+    {

         int l = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
         int r = (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;
         int l = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
         int r = (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;

-        m_Cells -> Layout(m_Width - (l + r));
+        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+            cell->Layout(m_Width - (l + r));

     }
 
     /*
     }
 
     /*


@@ -209,41 +787,156 @@ void wxHtmlContainerCell::Layout(int w)
     s_indent = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
     s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 
     s_indent = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
     s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 

-    m_MaxLineWidth = 0;
-

     // my own layouting:
     // my own layouting:

-    while (cell != NULL) {
-        switch (m_AlignVer) {
+    wxHtmlCell *cell = m_Cells,
+               *line = m_Cells;
+    while (cell != NULL)
+    {
+        switch (m_AlignVer)
+        {

             case wxHTML_ALIGN_TOP :      ybasicpos = 0; break;
             case wxHTML_ALIGN_TOP :      ybasicpos = 0; break;

-            case wxHTML_ALIGN_BOTTOM :   ybasicpos = - cell -> GetHeight(); break;
-            case wxHTML_ALIGN_CENTER :   ybasicpos = - cell -> GetHeight() / 2; break;
+            case wxHTML_ALIGN_BOTTOM :   ybasicpos = - cell->GetHeight(); break;
+            case wxHTML_ALIGN_CENTER :   ybasicpos = - cell->GetHeight() / 2; break;
+        }
+        ydiff = cell->GetHeight() + ybasicpos;
+
+        if (cell->GetDescent() + ydiff > ysizedown) ysizedown = cell->GetDescent() + ydiff;
+        if (ybasicpos + cell->GetDescent() < -ysizeup) ysizeup = - (ybasicpos + cell->GetDescent());
+
+        // layout nonbreakable run of cells:
+        cell->SetPos(xpos, ybasicpos + cell->GetDescent());
+        xpos += cell->GetWidth();
+        if (!cell->IsTerminalCell())
+        {
+            // Container cell indicates new line
+            if (curLineWidth > m_MaxTotalWidth)
+                m_MaxTotalWidth = curLineWidth;
+
+            if (wxMax(cell->GetWidth(), cell->GetMaxTotalWidth()) > m_MaxTotalWidth)
+                m_MaxTotalWidth = cell->GetMaxTotalWidth();
+            curLineWidth = 0;
+        }
+        else
+            // Normal cell, add maximum cell width to line width
+            curLineWidth += cell->GetMaxTotalWidth();
+
+        cell = cell->GetNext();
+
+        // compute length of the next word that would be added:
+        nextWordWidth = 0;
+        if (cell)
+        {
+            nextCell = cell;
+            do
+            {
+                nextWordWidth += nextCell->GetWidth();
+                nextCell = nextCell->GetNext();
+            } while (nextCell && !nextCell->IsLinebreakAllowed());

         }
         }

-        ydiff = cell -> GetHeight() + ybasicpos;
-
-        if (cell -> GetDescent() + ydiff > ysizedown) ysizedown = cell -> GetDescent() + ydiff;
-        if (ybasicpos + cell -> GetDescent() < -ysizeup) ysizeup = - (ybasicpos + cell -> GetDescent());
-
-        cell -> SetPos(xpos, ybasicpos + cell -> GetDescent());
-        xpos += cell -> GetWidth();
-        cell = cell -> GetNext();

 
 

-        // force new line if occured:
-        if ((cell == NULL) || (xpos + cell -> GetWidth() > s_width)) {
-            if (xpos > m_MaxLineWidth) m_MaxLineWidth = xpos;
+        // force new line if occurred:
+        if ((cell == NULL) ||
+            (xpos + nextWordWidth > s_width && cell->IsLinebreakAllowed()))
+        {
+            if (xpos > MaxLineWidth) MaxLineWidth = xpos;

             if (ysizeup < 0) ysizeup = 0;
             if (ysizedown < 0) ysizedown = 0;
             switch (m_AlignHor) {
             if (ysizeup < 0) ysizeup = 0;
             if (ysizedown < 0) ysizedown = 0;
             switch (m_AlignHor) {

-                case wxHTML_ALIGN_LEFT : xdelta = 0; break;
-                case wxHTML_ALIGN_RIGHT : xdelta = 0 + (s_width - xpos); break;
-                case wxHTML_ALIGN_CENTER : xdelta = 0 + (s_width - xpos) / 2; break;
+                case wxHTML_ALIGN_LEFT :
+                case wxHTML_ALIGN_JUSTIFY :
+                         xdelta = 0;
+                         break;
+                case wxHTML_ALIGN_RIGHT :
+                         xdelta = 0 + (s_width - xpos);
+                         break;
+                case wxHTML_ALIGN_CENTER :
+                         xdelta = 0 + (s_width - xpos) / 2;
+                         break;

             }
             if (xdelta < 0) xdelta = 0;
             xdelta += s_indent;
 
             ypos += ysizeup;
             }
             if (xdelta < 0) xdelta = 0;
             xdelta += s_indent;
 
             ypos += ysizeup;

-            while (line != cell) {
-                line -> SetPos(line -> GetPosX() + xdelta, ypos + line -> GetPosY());
-                line = line -> GetNext();
+
+            if (m_AlignHor != wxHTML_ALIGN_JUSTIFY || cell == NULL)
+            {
+                while (line != cell)
+                {
+                    line->SetPos(line->GetPosX() + xdelta,
+                                   ypos + line->GetPosY());
+                    line = line->GetNext();
+                }
+            }
+            else // align == justify
+            {
+                // we have to distribute the extra horz space between the cells
+                // on this line
+
+                // an added complication is that some cells have fixed size and
+                // shouldn't get any increment (it so happens that these cells
+                // also don't allow line break on them which provides with an
+                // easy way to test for this) -- and neither should the cells
+                // adjacent to them as this could result in a visible space
+                // between two cells separated by, e.g. font change, cell which
+                // is wrong
+
+                int step = s_width - xpos;
+                if ( step > 0 )
+                {
+                    // first count the cells which will get extra space
+                    int total = 0;
+
+                    const wxHtmlCell *c;
+                    if ( line != cell )
+                    {
+                        for ( c = line->GetNext(); c != cell; c = c->GetNext() )
+                        {
+                            if ( c->IsLinebreakAllowed() )
+                            {
+                                total++;
+                            }
+                        }
+                    }
+
+                    // and now extra space to those cells which merit it
+                    if ( total )
+                    {
+                        // first cell on line is not moved:
+                        line->SetPos(line->GetPosX() + s_indent,
+                                     line->GetPosY() + ypos);
+
+                        line = line->GetNext();
+                        for ( int n = 0; line != cell; line = line->GetNext() )
+                        {
+                            if ( line->IsLinebreakAllowed() )
+                            {
+                                // offset the next cell relative to this one
+                                // thus increasing our size
+                                n++;
+                            }
+
+                            line->SetPos(line->GetPosX() + s_indent +
+                                           ((n * step) / total),
+                                           line->GetPosY() + ypos);
+                        }
+                    }
+                    else
+                    {
+                        // this will cause the code to enter "else branch" below:
+                        step = 0;
+                    }
+                }
+                // else branch:
+                if ( step <= 0 ) // no extra space to distribute
+                {
+                    // just set the indent properly
+                    while (line != cell)
+                    {
+                        line->SetPos(line->GetPosX() + s_indent,
+                                     line->GetPosY() + ypos);
+                        line = line->GetNext();
+                    }
+                }

             }
 
             ypos += ysizedown;
             }
 
             ypos += ysizedown;


@@ -256,90 +949,155 @@ void wxHtmlContainerCell::Layout(int w)
     // setup height & width, depending on container layout:
     m_Height = ypos + (ysizedown + ysizeup) + m_IndentBottom;
 
     // setup height & width, depending on container layout:
     m_Height = ypos + (ysizedown + ysizeup) + m_IndentBottom;
 

-    if (m_Height < m_MinHeight) {
-        if (m_MinHeightAlign != wxHTML_ALIGN_TOP) {
+    if (m_Height < m_MinHeight)
+    {
+        if (m_MinHeightAlign != wxHTML_ALIGN_TOP)
+        {

             int diff = m_MinHeight - m_Height;
             if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2;
             cell = m_Cells;
             int diff = m_MinHeight - m_Height;
             if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2;
             cell = m_Cells;

-            while (cell) {
-                cell -> SetPos(cell -> GetPosX(), cell -> GetPosY() + diff);
-                cell = cell -> GetNext();
+            while (cell)
+            {
+                cell->SetPos(cell->GetPosX(), cell->GetPosY() + diff);
+                cell = cell->GetNext();

             }
         }
         m_Height = m_MinHeight;
     }
 
             }
         }
         m_Height = m_MinHeight;
     }
 

-    m_MaxLineWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
-    if (m_Width < m_MaxLineWidth) m_Width = m_MaxLineWidth;
+    if (curLineWidth > m_MaxTotalWidth)
+        m_MaxTotalWidth = curLineWidth;

 
 

-    wxHtmlCell::Layout(w);
+    m_MaxTotalWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
+    MaxLineWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
+    if (m_Width < MaxLineWidth) m_Width = MaxLineWidth;
+
+    m_LastLayout = w;

 }
 
 }
 

+void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingInfo& info,
+                                                  wxHtmlCell *cell) const
+{
+    wxHtmlSelection *s = info.GetSelection();
+    if (!s) return;
+    if (s->GetFromCell() == cell || s->GetToCell() == cell)
+    {
+        info.GetState().SetSelectionState(wxHTML_SEL_CHANGING);
+    }
+}
+
+void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingInfo& info,
+                                                   wxHtmlCell *cell) const
+{
+    wxHtmlSelection *s = info.GetSelection();
+    if (!s) return;
+    if (s->GetToCell() == cell)
+        info.GetState().SetSelectionState(wxHTML_SEL_OUT);
+    else if (s->GetFromCell() == cell)
+        info.GetState().SetSelectionState(wxHTML_SEL_IN);
+}

 
 #define mMin(a, b) (((a) < (b)) ? (a) : (b))
 #define mMax(a, b) (((a) < (b)) ? (b) : (a))
 
 
 #define mMin(a, b) (((a) < (b)) ? (a) : (b))
 #define mMax(a, b) (((a) < (b)) ? (b) : (a))
 

-void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
+                               wxHtmlRenderingInfo& info)

 {
 {

-    // container visible, draw it:
-    if ((y + m_PosY < view_y2) && (y + m_PosY + m_Height > view_y1)) {
-
-        if (m_UseBkColour) {
-            wxBrush myb = wxBrush(m_BkColour, wxSOLID);
-
-            int real_y1 = mMax(y + m_PosY, view_y1);
-            int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2);
+#if 0 // useful for debugging
+    dc.SetPen(*wxRED_PEN);
+    dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
+#endif

 
 

-            dc.SetBrush(myb);
-            dc.SetPen(*wxTRANSPARENT_PEN);
-            dc.DrawRectangle(x + m_PosX, real_y1, m_Width, real_y2 - real_y1 + 1);
-        }
+    int xlocal = x + m_PosX;
+    int ylocal = y + m_PosY;

 
 

-        if (m_UseBorder) {
-            wxPen mypen1(m_BorderColour1, 1, wxSOLID);
-            wxPen mypen2(m_BorderColour2, 1, wxSOLID);
+    if (m_UseBkColour)
+    {
+        wxBrush myb = wxBrush(m_BkColour, wxSOLID);

 
 

-            dc.SetPen(mypen1);
-            dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX, y + m_PosY + m_Height - 1);
-            dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX + m_Width - 1, y + m_PosY);
-            dc.SetPen(mypen2);
-            dc.DrawLine(x + m_PosX + m_Width - 1, y + m_PosY, x + m_PosX +  m_Width - 1, y + m_PosY + m_Height - 1);
-            dc.DrawLine(x + m_PosX, y + m_PosY + m_Height - 1, x + m_PosX + m_Width - 1, y + m_PosY + m_Height - 1);
-        }
+        int real_y1 = mMax(ylocal, view_y1);
+        int real_y2 = mMin(ylocal + m_Height - 1, view_y2);

 
 

-        if (m_Cells) m_Cells -> Draw(dc, x + m_PosX, y + m_PosY, view_y1, view_y2);
+        dc.SetBrush(myb);
+        dc.SetPen(*wxTRANSPARENT_PEN);
+        dc.DrawRectangle(xlocal, real_y1, m_Width, real_y2 - real_y1 + 1);

     }
     }

-    // container invisible, just proceed font+color changing:
-    else {
-        if (m_Cells) m_Cells -> DrawInvisible(dc, x + m_PosX, y + m_PosY);
+
+    if (m_UseBorder)
+    {
+        wxPen mypen1(m_BorderColour1, 1, wxSOLID);
+        wxPen mypen2(m_BorderColour2, 1, wxSOLID);
+
+        dc.SetPen(mypen1);
+        dc.DrawLine(xlocal, ylocal, xlocal, ylocal + m_Height - 1);
+        dc.DrawLine(xlocal, ylocal, xlocal + m_Width, ylocal);
+        dc.SetPen(mypen2);
+        dc.DrawLine(xlocal + m_Width - 1, ylocal, xlocal +  m_Width - 1, ylocal + m_Height - 1);
+        dc.DrawLine(xlocal, ylocal + m_Height - 1, xlocal + m_Width, ylocal + m_Height - 1);

     }
 
     }
 

-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
+    if (m_Cells)
+    {
+        // draw container's contents:
+        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+        {
+
+            // optimize drawing: don't render off-screen content:
+            if ((ylocal + cell->GetPosY() <= view_y2) &&
+                (ylocal + cell->GetPosY() + cell->GetHeight() > view_y1))
+            {
+                // the cell is visible, draw it:
+                UpdateRenderingStatePre(info, cell);
+                cell->Draw(dc,
+                           xlocal, ylocal, view_y1, view_y2,
+                           info);
+                UpdateRenderingStatePost(info, cell);
+            }
+            else
+            {
+                // the cell is off-screen, proceed with font+color+etc.
+                // changes only:
+                cell->DrawInvisible(dc, xlocal, ylocal, info);
+            }
+        }
+    }

 }
 
 
 
 }
 
 
 

-void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y)
+void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y,
+                                        wxHtmlRenderingInfo& info)
+{
+    if (m_Cells)
+    {
+        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+        {
+            UpdateRenderingStatePre(info, cell);
+            cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, info);
+            UpdateRenderingStatePost(info, cell);
+        }
+    }
+}
+
+
+wxColour wxHtmlContainerCell::GetBackgroundColour()

 {
 {

-    if (m_Cells) m_Cells -> DrawInvisible(dc, x + m_PosX, y + m_PosY);
-    wxHtmlCell::DrawInvisible(dc, x, y);
+    if (m_UseBkColour)
+        return m_BkColour;
+    else
+        return wxNullColour;

 }
 
 
 
 }
 
 
 

-wxString wxHtmlContainerCell::GetLink(int x, int y) const
+wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const

 {
 {

-    wxHtmlCell *c = m_Cells;
-    int cx, cy, cw, ch;
+    wxHtmlCell *cell = FindCellByPos(x, y);

 
 

-    while (c) {
-        cx = c -> GetPosX(), cy = c -> GetPosY();
-        cw = c -> GetWidth(), ch = c -> GetHeight();
-        if ((x >= cx) && (x < cx + cw) && (y >= cy) && (y < cy + ch))
-            return c -> GetLink(x - cx, y - cy);
-        c = c -> GetNext();
-    }
-    return wxEmptyString;
+    // VZ: I don't know if we should pass absolute or relative coords to
+    //     wxHtmlCell::GetLink()? As the base class version just ignores them
+    //     anyhow, it hardly matters right now but should still be clarified
+    return cell ? cell->GetLink(x, y) : NULL;

 }
 
 
 }
 
 


@@ -347,46 +1105,56 @@ wxString wxHtmlContainerCell::GetLink(int x, int y) const
 void wxHtmlContainerCell::InsertCell(wxHtmlCell *f)
 {
     if (!m_Cells) m_Cells = m_LastCell = f;
 void wxHtmlContainerCell::InsertCell(wxHtmlCell *f)
 {
     if (!m_Cells) m_Cells = m_LastCell = f;

-    else {
-        m_LastCell -> SetNext(f);
+    else
+    {
+        m_LastCell->SetNext(f);

         m_LastCell = f;
         m_LastCell = f;

-        if (m_LastCell) while (m_LastCell -> GetNext()) m_LastCell = m_LastCell -> GetNext();
+        if (m_LastCell) while (m_LastCell->GetNext()) m_LastCell = m_LastCell->GetNext();

     }
     }

-    f -> SetParent(this);
+    f->SetParent(this);
+    m_LastLayout = -1;

 }
 
 
 
 void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag)
 {
 }
 
 
 
 void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag)
 {

-    if (tag.HasParam("ALIGN")) {
-        wxString alg = tag.GetParam("ALIGN");
+    if (tag.HasParam(wxT("ALIGN")))
+    {
+        wxString alg = tag.GetParam(wxT("ALIGN"));

         alg.MakeUpper();
         alg.MakeUpper();

-        if (alg == "CENTER")
+        if (alg == wxT("CENTER"))

             SetAlignHor(wxHTML_ALIGN_CENTER);
             SetAlignHor(wxHTML_ALIGN_CENTER);

-        else if (alg == "LEFT")
+        else if (alg == wxT("LEFT"))

             SetAlignHor(wxHTML_ALIGN_LEFT);
             SetAlignHor(wxHTML_ALIGN_LEFT);

-        else if (alg == "RIGHT")
+        else if (alg == wxT("JUSTIFY"))
+            SetAlignHor(wxHTML_ALIGN_JUSTIFY);
+        else if (alg == wxT("RIGHT"))

             SetAlignHor(wxHTML_ALIGN_RIGHT);
             SetAlignHor(wxHTML_ALIGN_RIGHT);

+        m_LastLayout = -1;

     }
 }
 
 
 
     }
 }
 
 
 

-void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag)
+void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale)

 {
 {

-    if (tag.HasParam("WIDTH")) {
+    if (tag.HasParam(wxT("WIDTH")))
+    {

         int wdi;
         int wdi;

-        wxString wd = tag.GetParam("WIDTH");
+        wxString wd = tag.GetParam(wxT("WIDTH"));

 
 

-        if (wd[wd.Length()-1] == '%') {
-            sscanf(wd.c_str(), "%i%%", &wdi);
+        if (wd[wd.length()-1] == wxT('%'))
+        {
+            wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);

             SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
         }
             SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
         }

-        else {
-            sscanf(wd.c_str(), "%i", &wdi);
-            SetWidthFloat(wdi, wxHTML_UNITS_PIXELS);
+        else
+        {
+            wxSscanf(wd.c_str(), wxT("%i"), &wdi);
+            SetWidthFloat((int)(pixel_scale * (double)wdi), wxHTML_UNITS_PIXELS);

         }
         }

+        m_LastLayout = -1;

     }
 }
 
     }
 }
 


@@ -394,82 +1162,289 @@ void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag)
 
 const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const
 {
 
 const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const
 {

-    const wxHtmlCell *r = NULL;
+    if (m_Cells)
+    {
+        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
+        {
+            const wxHtmlCell *r = cell->Find(condition, param);
+            if (r) return r;
+        }
+    }
+    return NULL;
+}

 
 

-    if (m_Cells) {
-        r = m_Cells -> Find(condition, param);
-        if (r) return r;
+
+wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y,
+                                               unsigned flags) const
+{
+    if ( flags & wxHTML_FIND_EXACT )
+    {
+        for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
+        {
+            int cx = cell->GetPosX(),
+                cy = cell->GetPosY();
+
+            if ( (cx <= x) && (cx + cell->GetWidth() > x) &&
+                 (cy <= y) && (cy + cell->GetHeight() > y) )
+            {
+                return cell->FindCellByPos(x - cx, y - cy, flags);
+            }
+        }
+    }
+    else if ( flags & wxHTML_FIND_NEAREST_AFTER )
+    {
+        wxHtmlCell *c;
+        for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
+        {
+            if ( cell->IsFormattingCell() )
+                continue;
+            int cellY = cell->GetPosY();
+            if (!( y < cellY || (y < cellY + cell->GetHeight() &&
+                                 x < cell->GetPosX() + cell->GetWidth()) ))
+                continue;
+
+            c = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
+            if (c) return c;
+        }
+    }
+    else if ( flags & wxHTML_FIND_NEAREST_BEFORE )
+    {
+        wxHtmlCell *c2, *c = NULL;
+        for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
+        {
+            if ( cell->IsFormattingCell() )
+                continue;
+            int cellY = cell->GetPosY();
+            if (!( cellY + cell->GetHeight() <= y ||
+                   (y >= cellY && x >= cell->GetPosX()) ))
+                break;
+            c2 = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
+            if (c2)
+                c = c2;
+        }
+        if (c) return c;

     }
 
     }
 

-    return wxHtmlCell::Find(condition, param);
+    return NULL;

 }
 
 
 }
 
 

+bool wxHtmlContainerCell::ProcessMouseClick(wxHtmlWindowInterface *window,
+                                            const wxPoint& pos,
+                                            const wxMouseEvent& event)
+{
+#if WXWIN_COMPATIBILITY_2_6
+    wxHtmlCellOnMouseClickCompatHelper compat(window, pos, event);
+    return compat.CallOnMouseClick(this);
+}

 
 

-void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, bool left, bool middle, bool right)
+void wxHtmlContainerCell::OnMouseClick(wxWindow*,
+                                       int, int, const wxMouseEvent& event)

 {
 {

-    if (m_Cells) {
-        wxHtmlCell *c = m_Cells;
-        while (c) {
-            if (    (c -> GetPosX() <= x) &&
-                    (c -> GetPosY() <= y) &&
-                    (c -> GetPosX() + c -> GetWidth() > x) &&
-                    (c -> GetPosY() + c -> GetHeight() > y)) {
-                c -> OnMouseClick(parent, x - c -> GetPosX(), y - c -> GetPosY(), left, middle, right);
-                break;
-            }
-            c = c -> GetNext();
+    wxCHECK_RET( gs_helperOnMouseClick, _T("unexpected call to OnMouseClick") );
+    wxHtmlWindowInterface *window = gs_helperOnMouseClick->window;
+    const wxPoint& pos = gs_helperOnMouseClick->pos;
+#endif // WXWIN_COMPATIBILITY_2_6
+
+    bool retval = false;
+    wxHtmlCell *cell = FindCellByPos(pos.x, pos.y);
+    if ( cell )
+        retval = cell->ProcessMouseClick(window, pos, event);
+
+#if WXWIN_COMPATIBILITY_2_6
+    gs_helperOnMouseClick->retval = retval;
+#else
+    return retval;
+#endif // WXWIN_COMPATIBILITY_2_6
+}
+
+
+wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const
+{
+    if ( m_Cells )
+    {
+        wxHtmlCell *c2;
+        for (wxHtmlCell *c = m_Cells; c; c = c->GetNext())
+        {
+            c2 = c->GetFirstTerminal();
+            if ( c2 )
+                return c2;

         }
     }
         }
     }

+    return NULL;
+}
+
+wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const
+{
+    if ( m_Cells )
+    {
+        // most common case first:
+        wxHtmlCell *c = m_LastCell->GetLastTerminal();
+        if ( c )
+            return c;
+
+        wxHtmlCell *ctmp;
+        wxHtmlCell *c2 = NULL;
+        for (c = m_Cells; c; c = c->GetNext())
+        {
+            ctmp = c->GetLastTerminal();
+            if ( ctmp )
+                c2 = ctmp;
+        }
+        return c2;
+    }
+    else
+        return NULL;
+}
+
+
+static bool IsEmptyContainer(wxHtmlContainerCell *cell)
+{
+    for ( wxHtmlCell *c = cell->GetFirstChild(); c; c = c->GetNext() )
+    {
+        if ( !c->IsTerminalCell() || !c->IsFormattingCell() )
+            return false;
+    }
+    return true;

 }
 
 }
 

+void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)
+{
+    if ( top )
+        SetIndent(0, wxHTML_INDENT_TOP);
+    if ( bottom )
+        SetIndent(0, wxHTML_INDENT_BOTTOM);
+
+    if ( m_Cells )
+    {
+        wxHtmlCell *c;
+        wxHtmlContainerCell *cont;
+        if ( top )
+        {
+            for ( c = m_Cells; c; c = c->GetNext() )
+            {
+                if ( c->IsTerminalCell() )
+                {
+                    if ( !c->IsFormattingCell() )
+                        break;
+                }
+                else
+                {
+                    cont = (wxHtmlContainerCell*)c;
+                    if ( IsEmptyContainer(cont) )
+                    {
+                        cont->SetIndent(0, wxHTML_INDENT_VERTICAL);
+                    }
+                    else
+                    {
+                        cont->RemoveExtraSpacing(true, false);
+                        break;
+                    }
+                }
+            }
+        }
+
+        if ( bottom )
+        {
+            wxArrayPtrVoid arr;
+            for ( c = m_Cells; c; c = c->GetNext() )
+                arr.Add((void*)c);
+
+            for ( int i = arr.GetCount() - 1; i >= 0; i--)
+            {
+                c = (wxHtmlCell*)arr[i];
+                if ( c->IsTerminalCell() )
+                {
+                    if ( !c->IsFormattingCell() )
+                        break;
+                }
+                else
+                {
+                    cont = (wxHtmlContainerCell*)c;
+                    if ( IsEmptyContainer(cont) )
+                    {
+                        cont->SetIndent(0, wxHTML_INDENT_VERTICAL);
+                    }
+                    else
+                    {
+                        cont->RemoveExtraSpacing(false, true);
+                        break;
+                    }
+                }
+            }
+        }
+    }
+}

 
 
 
 
 
 
 
 

-//--------------------------------------------------------------------------------
+// --------------------------------------------------------------------------

 // wxHtmlColourCell
 // wxHtmlColourCell

-//--------------------------------------------------------------------------------
+// --------------------------------------------------------------------------

 
 

-void wxHtmlColourCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlColourCell, wxHtmlCell)
+
+void wxHtmlColourCell::Draw(wxDC& dc,
+                            int x, int y,
+                            int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+                            wxHtmlRenderingInfo& info)

 {
 {

-    if (m_Flags & wxHTML_CLR_FOREGROUND)
-        dc.SetTextForeground(m_Colour);
-    if (m_Flags & wxHTML_CLR_BACKGROUND) {
-        dc.SetBackground(wxBrush(m_Colour, wxSOLID));
-        dc.SetTextBackground(m_Colour);
-    }
-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
+    DrawInvisible(dc, x, y, info);

 }
 
 }
 

-void wxHtmlColourCell::DrawInvisible(wxDC& dc, int x, int y)
+void wxHtmlColourCell::DrawInvisible(wxDC& dc,
+                                     int WXUNUSED(x), int WXUNUSED(y),
+                                     wxHtmlRenderingInfo& info)

 {
 {

+    wxHtmlRenderingState& state = info.GetState();

     if (m_Flags & wxHTML_CLR_FOREGROUND)
     if (m_Flags & wxHTML_CLR_FOREGROUND)

-        dc.SetTextForeground(m_Colour);
-    if (m_Flags & wxHTML_CLR_BACKGROUND) {
-        dc.SetBackground(wxBrush(m_Colour, wxSOLID));
-        dc.SetTextBackground(m_Colour);
+    {
+        state.SetFgColour(m_Colour);
+        if (state.GetSelectionState() != wxHTML_SEL_IN)
+            dc.SetTextForeground(m_Colour);
+        else
+            dc.SetTextForeground(
+                    info.GetStyle().GetSelectedTextColour(m_Colour));
+    }
+    if (m_Flags & wxHTML_CLR_BACKGROUND)
+    {
+        state.SetBgColour(m_Colour);
+        if (state.GetSelectionState() != wxHTML_SEL_IN)
+        {
+            dc.SetTextBackground(m_Colour);
+            dc.SetBackground(wxBrush(m_Colour, wxSOLID));
+        }
+        else
+        {
+            wxColour c = info.GetStyle().GetSelectedTextBgColour(m_Colour);
+            dc.SetTextBackground(c);
+            dc.SetBackground(wxBrush(c, wxSOLID));
+        }

     }
     }

-    wxHtmlCell::DrawInvisible(dc, x, y);

 }
 
 
 
 
 }
 
 
 
 

-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------

 // wxHtmlFontCell
 // wxHtmlFontCell

-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------

 
 

-void wxHtmlFontCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlFontCell, wxHtmlCell)
+
+void wxHtmlFontCell::Draw(wxDC& dc,
+                          int WXUNUSED(x), int WXUNUSED(y),
+                          int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+                          wxHtmlRenderingInfo& WXUNUSED(info))

 {
 {

-    dc.SetFont(*m_Font);
-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
+    dc.SetFont(m_Font);

 }
 
 }
 

-void wxHtmlFontCell::DrawInvisible(wxDC& dc, int x, int y)
+void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y),
+                                   wxHtmlRenderingInfo& WXUNUSED(info))

 {
 {

-    dc.SetFont(*m_Font);
-    wxHtmlCell::DrawInvisible(dc, x, y);
+    dc.SetFont(m_Font);

 }
 
 
 }
 
 


@@ -479,66 +1454,112 @@ void wxHtmlFontCell::DrawInvisible(wxDC& dc, int x, int y)
 
 
 
 
 
 

-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------

 // wxHtmlWidgetCell
 // wxHtmlWidgetCell

-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlWidgetCell, wxHtmlCell)

 
 wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
 {
     int sx, sy;
     m_Wnd = wnd;
 
 wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
 {
     int sx, sy;
     m_Wnd = wnd;

-    m_Wnd -> GetSize(&sx, &sy);
+    m_Wnd->GetSize(&sx, &sy);

     m_Width = sx, m_Height = sy;
     m_WidthFloat = w;
 }
 
 
     m_Width = sx, m_Height = sy;
     m_WidthFloat = w;
 }
 
 

-void wxHtmlWidgetCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc),
+                            int WXUNUSED(x), int WXUNUSED(y),
+                            int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+                            wxHtmlRenderingInfo& WXUNUSED(info))

 {
     int absx = 0, absy = 0, stx, sty;
     wxHtmlCell *c = this;
 
 {
     int absx = 0, absy = 0, stx, sty;
     wxHtmlCell *c = this;
 

-    while (c) {
-        absx += c -> GetPosX();
-        absy += c -> GetPosY();
-        c = c -> GetParent();
+    while (c)
+    {
+        absx += c->GetPosX();
+        absy += c->GetPosY();
+        c = c->GetParent();

     }
 
     }
 

-    ((wxScrolledWindow*)(m_Wnd -> GetParent())) -> ViewStart(&stx, &sty);
-    m_Wnd -> SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
-
-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
+    ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
+    m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);

 }
 
 
 
 }
 
 
 

-void wxHtmlWidgetCell::DrawInvisible(wxDC& dc, int x, int y)
+void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc),
+                                     int WXUNUSED(x), int WXUNUSED(y),
+                                     wxHtmlRenderingInfo& WXUNUSED(info))

 {
     int absx = 0, absy = 0, stx, sty;
     wxHtmlCell *c = this;
 
 {
     int absx = 0, absy = 0, stx, sty;
     wxHtmlCell *c = this;
 

-    while (c) {
-        absx += c -> GetPosX();
-        absy += c -> GetPosY();
-        c = c -> GetParent();
+    while (c)
+    {
+        absx += c->GetPosX();
+        absy += c->GetPosY();
+        c = c->GetParent();

     }
 
     }
 

-    ((wxScrolledWindow*)(m_Wnd -> GetParent())) -> ViewStart(&stx, &sty);
-    m_Wnd -> SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
-
-    wxHtmlCell::DrawInvisible(dc, x, y);
+    ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
+    m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);

 }
 
 
 
 void wxHtmlWidgetCell::Layout(int w)
 {
 }
 
 
 
 void wxHtmlWidgetCell::Layout(int w)
 {

-    if (m_WidthFloat != 0) {
+    if (m_WidthFloat != 0)
+    {

         m_Width = (w * m_WidthFloat) / 100;
         m_Width = (w * m_WidthFloat) / 100;

-        m_Wnd -> SetSize(m_Width, m_Height);
+        m_Wnd->SetSize(m_Width, m_Height);

     }
 
     wxHtmlCell::Layout(w);
 }
 
     }
 
     wxHtmlCell::Layout(w);
 }
 

+
+
+// ----------------------------------------------------------------------------
+// wxHtmlTerminalCellsInterator
+// ----------------------------------------------------------------------------
+
+const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++()
+{
+    if ( !m_pos )
+        return NULL;
+
+    do
+    {
+        if ( m_pos == m_to )
+        {
+            m_pos = NULL;
+            return NULL;
+        }
+
+        if ( m_pos->GetNext() )
+            m_pos = m_pos->GetNext();
+        else
+        {
+            // we must go up the hierarchy until we reach container where this
+            // is not the last child, and then go down to first terminal cell:
+            while ( m_pos->GetNext() == NULL )
+            {
+                m_pos = m_pos->GetParent();
+                if ( !m_pos )
+                    return NULL;
+            }
+            m_pos = m_pos->GetNext();
+        }
+        while ( m_pos->GetFirstChild() != NULL )
+            m_pos = m_pos->GetFirstChild();
+    } while ( !m_pos->IsTerminalCell() );
+
+    return m_pos;
+}
+

 #endif
 #endif