header files are not executable

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

diff --git a/src/html/htmlcell.cpp b/src/html/htmlcell.cpp
index 7d38d30994b3a66cc87ae533d67508a918c39028..e0ca15d66efaaeff8ac9ad2043c74f262cfbdbe5 100644 (file)
--- a/src/html/htmlcell.cpp
+++ b/src/html/htmlcell.cpp
@@ -1,48 +1,35 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// 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

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

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "htmlcell.h"
-#endif
-

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

-#include "wx/defs.h"
-
-#if wxUSE_HTML && wxUSE_STREAMS
-

 #ifdef __BORLANDC__
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

-#ifndef WXPRECOMP
+#if wxUSE_HTML && wxUSE_STREAMS
+
+#ifndef WX_PRECOMP
+    #include "wx/dynarray.h"

     #include "wx/brush.h"
     #include "wx/colour.h"
     #include "wx/dc.h"
     #include "wx/brush.h"
     #include "wx/colour.h"
     #include "wx/dc.h"

+    #include "wx/settings.h"
+    #include "wx/module.h"
+    #include "wx/wxcrtvararg.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/settings.h"
-#include "wx/module.h"
-#include "wx/dynarray.h"

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

-//-----------------------------------------------------------------------------
-// Global variables
-//-----------------------------------------------------------------------------
-
-static wxCursor *gs_cursorLink = NULL;
-static wxCursor *gs_cursorText = NULL;
-
-

 //-----------------------------------------------------------------------------
 // Helper classes
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // Helper classes
 //-----------------------------------------------------------------------------


@@ -94,7 +81,9 @@ wxHtmlCell::wxHtmlCell() : wxObject()
     m_Next = NULL;
     m_Parent = NULL;
     m_Width = m_Height = m_Descent = 0;
     m_Next = NULL;
     m_Parent = NULL;
     m_Width = m_Height = m_Descent = 0;

-    m_CanLiveOnPagebreak = TRUE;
+    m_ScriptMode = wxHTML_SCRIPT_NORMAL;        // <sub> or <sup> mode
+    m_ScriptBaseline = 0;                       // <sub> or <sup> baseline
+    m_CanLiveOnPagebreak = true;

     m_Link = NULL;
 }
 
     m_Link = NULL;
 }
 


@@ -103,46 +92,145 @@ wxHtmlCell::~wxHtmlCell()
     delete m_Link;
 }
 
     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;

 
 

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

 {
 {

-    wxHtmlLinkInfo *lnk = GetLink(x, y);
-    if (lnk != NULL)
+    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);
 
     {
         wxHtmlLinkInfo lnk2(*lnk);
         lnk2.SetEvent(&event);
         lnk2.SetHtmlCell(this);
 

-        // note : this cast is legal because parent is *always* wxHtmlWindow
-        wxStaticCast(parent, wxHtmlWindow)->OnLinkClicked(lnk2);
+        window->OnHTMLLinkClicked(lnk2);
+        retval = true;

     }
     }

-}

 
 

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

 
 

+#if WXWIN_COMPATIBILITY_2_6

 wxCursor wxHtmlCell::GetCursor() const
 {
 wxCursor wxHtmlCell::GetCursor() const
 {

+    return wxNullCursor;
+}
+#endif // WXWIN_COMPATIBILITY_2_6
+
+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() )
     {
     if ( GetLink() )
     {

-        if ( !gs_cursorLink )
-            gs_cursorLink = new wxCursor(wxCURSOR_HAND);
-        return *gs_cursorLink;
+        return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Link);

     }
     else
     }
     else

-        return *wxSTANDARD_CURSOR;
+    {
+        return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Default);
+    }

 }
 
 
 }
 
 

-bool wxHtmlCell::AdjustPagebreak(int *pagebreak, int* WXUNUSED(known_pagebreaks), int WXUNUSED(number_of_pages)) const
+bool wxHtmlCell::AdjustPagebreak(int *pagebreak,
+                                 wxArrayInt& WXUNUSED(known_pagebreaks)) const

 {
     if ((!m_CanLiveOnPagebreak) &&
                 m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
     {
         *pagebreak = m_PosY;
 {
     if ((!m_CanLiveOnPagebreak) &&
                 m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
     {
         *pagebreak = m_PosY;

-        return TRUE;
+        return true;

     }
 
     }
 

-    return FALSE;
+    return false;

 }
 
 
 }
 
 


@@ -190,10 +278,11 @@ wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y,
 }
 
 
 }
 
 

-wxPoint wxHtmlCell::GetAbsPos() const
+wxPoint wxHtmlCell::GetAbsPos(wxHtmlCell *rootCell) const

 {
     wxPoint p(m_PosX, m_PosY);
 {
     wxPoint p(m_PosX, m_PosY);

-    for (wxHtmlCell *parent = m_Parent; parent; parent = parent->m_Parent)
+    for (wxHtmlCell *parent = m_Parent; parent && parent != rootCell;
+         parent = parent->m_Parent)

     {
         p.x += parent->m_PosX;
         p.y += parent->m_PosY;
     {
         p.x += parent->m_PosX;
         p.y += parent->m_PosY;


@@ -201,6 +290,14 @@ wxPoint wxHtmlCell::GetAbsPos() const
     return p;
 }
 
     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;
 unsigned wxHtmlCell::GetDepth() const
 {
     unsigned d = 0;


@@ -256,11 +353,15 @@ bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const
 
 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWordCell, wxHtmlCell)
 
 
 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWordCell, wxHtmlCell)
 

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

 {
     m_Word = word;
 {
     m_Word = word;

-    dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);
-    SetCanLiveOnPagebreak(FALSE);
+    wxCoord w, h, d;
+    dc.GetTextExtent(m_Word, &w, &h, &d);
+    m_Width = w;
+    m_Height = h;
+    m_Descent = d;
+    SetCanLiveOnPagebreak(false);

     m_allowLinebreak = true;
 }
 
     m_allowLinebreak = true;
 }
 


@@ -276,16 +377,25 @@ void wxHtmlWordCell::SetPreviousWord(wxHtmlWordCell *cell)
 // 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:
 // 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(wxDC& dc,
+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) ?
                            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, -1) : selTo - GetAbsPos();
+                   wxPoint(m_Width, wxDefaultCoord) : selTo - GetAbsPos();
+
+    // if the selection is entirely within this cell, make sure pt1 < pt2 in
+    // order to make the rest of this function simpler:
+    if ( selFrom != wxDefaultPosition && selTo != wxDefaultPosition &&
+         selFrom.x > selTo.x )
+    {
+        wxPoint tmp = pt1;
+        pt1 = pt2;
+        pt2 = tmp;
+    }

 
 

-    wxCoord charW, charH;

     unsigned len = m_Word.length();
     unsigned i = 0;
     pos1 = 0;
     unsigned len = m_Word.length();
     unsigned i = 0;
     pos1 = 0;


@@ -298,37 +408,65 @@ void wxHtmlWordCell::Split(wxDC& dc,
         pt2.x = m_Width;
 
     // before selection:
         pt2.x = m_Width;
 
     // before selection:

+    // (include character under caret only if in first half of width)
+#ifdef __WXMAC__
+    // implementation using PartialExtents to support fractional widths
+    wxArrayInt widths ;
+    dc.GetPartialTextExtents(m_Word,widths) ;
+    while( i < len && pt1.x >= widths[i] )
+        i++ ;
+    if ( i < len )
+    {
+        int charW = (i > 0) ? widths[i] - widths[i-1] : widths[i];
+        if ( widths[i] - pt1.x < charW/2 )
+            i++;
+    }
+#else // !__WXMAC__
+    wxCoord charW, charH;

     while ( pt1.x > 0 && i < len )
     {
         dc.GetTextExtent(m_Word[i], &charW, &charH);
         pt1.x -= charW;
     while ( pt1.x > 0 && i < len )
     {
         dc.GetTextExtent(m_Word[i], &charW, &charH);
         pt1.x -= charW;

-        if ( pt1.x >= 0 )
+        if ( pt1.x >= -charW/2 )

         {
             pos1 += charW;
             i++;
         }
     }
         {
             pos1 += charW;
             i++;
         }
     }

+#endif // __WXMAC__/!__WXMAC__

 
     // in selection:
 
     // in selection:

+    // (include character under caret only if in first half of width)

     unsigned j = i;
     unsigned j = i;

+#ifdef __WXMAC__
+    while( j < len && pt2.x >= widths[j] )
+        j++ ;
+    if ( j < len )
+    {
+        int charW = (j > 0) ? widths[j] - widths[j-1] : widths[j];
+        if ( widths[j] - pt2.x < charW/2 )
+            j++;
+    }
+#else // !__WXMAC__

     pos2 = pos1;
     pt2.x -= pos2;
     while ( pt2.x > 0 && j < len )
     {
         dc.GetTextExtent(m_Word[j], &charW, &charH);
         pt2.x -= charW;
     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 )
+        if ( pt2.x >= -charW/2 )

         {
             pos2 += charW;
             j++;
         }
     }
         {
             pos2 += charW;
             j++;
         }
     }

+#endif // __WXMAC__/!__WXMAC__

 
     pos1 = i;
     pos2 = j;
 }
 
 
     pos1 = i;
     pos2 = j;
 }
 

-void wxHtmlWordCell::SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const
+void wxHtmlWordCell::SetSelectionPrivPos(const wxDC& dc, wxHtmlSelection *s) const

 {
     unsigned p1, p2;
 
 {
     unsigned p1, p2;
 


@@ -381,11 +519,11 @@ void wxHtmlWordCell::Draw(wxDC& dc, int x, int y,
 {
 #if 0 // useful for debugging
     dc.SetPen(*wxBLACK_PEN);
 {
 #if 0 // useful for debugging
     dc.SetPen(*wxBLACK_PEN);

-    dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
+    dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width /* VZ: +1? */ ,m_Height);

 #endif
 
     bool drawSelectionAfterCell = false;
 #endif
 
     bool drawSelectionAfterCell = false;

-    
+

     if ( info.GetState().GetSelectionState() == wxHTML_SEL_CHANGING )
     {
         // Selection changing, we must draw the word piecewise:
     if ( info.GetState().GetSelectionState() == wxHTML_SEL_CHANGING )
     {
         // Selection changing, we must draw the word piecewise:


@@ -506,16 +644,16 @@ wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *s) const
     return m_Word;
 }
 
     return m_Word;
 }
 

-wxCursor wxHtmlWordCell::GetCursor() const
+wxCursor wxHtmlWordCell::GetMouseCursor(wxHtmlWindowInterface *window) const

 {
     if ( !GetLink() )
     {
 {
     if ( !GetLink() )
     {

-        if ( !gs_cursorText )
-            gs_cursorText = new wxCursor(wxCURSOR_IBEAM);
-        return *gs_cursorText;
+        return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Text);

     }
     else
     }
     else

-        return wxHtmlCell::GetCursor();
+    {
+        return wxHtmlCell::GetMouseCursor(window);
+    }

 }
 
 
 }
 
 


@@ -529,13 +667,14 @@ wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCe
 {
     m_Cells = m_LastCell = NULL;
     m_Parent = parent;
 {
     m_Cells = m_LastCell = NULL;
     m_Parent = parent;

+    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;
     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_UseBkColour = FALSE;
-    m_UseBorder = FALSE;
+    m_UseBkColour = false;
+    m_UseBorder = false;

     m_MinHeight = 0;
     m_MinHeightAlign = wxHTML_ALIGN_TOP;
     m_LastLayout = -1;
     m_MinHeight = 0;
     m_MinHeightAlign = wxHTML_ALIGN_TOP;
     m_LastLayout = -1;


@@ -580,7 +719,7 @@ 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;


@@ -590,32 +729,28 @@ int wxHtmlContainerCell::GetIndentUnits(int ind) const
 }
 
 
 }
 
 

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

 {
     if (!m_CanLiveOnPagebreak)
 {
     if (!m_CanLiveOnPagebreak)

-        return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks, number_of_pages);
+        return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks);

 
 

-    else
-    {
-        wxHtmlCell *c = GetFirstChild();
-        bool rt = FALSE;
-        int pbrk = *pagebreak - m_PosY;
+    wxHtmlCell *c = GetFirstChild();
+    bool rt = false;
+    int pbrk = *pagebreak - m_PosY;

 
 

-        while (c)
-        {
-            if (c->AdjustPagebreak(&pbrk, known_pagebreaks, number_of_pages))
-                rt = TRUE;
-            c = c->GetNext();
-        }
-        if (rt)
-            *pagebreak = pbrk + m_PosY;
-        return rt;
+    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)
 {
     wxHtmlCell::Layout(w);
 void wxHtmlContainerCell::Layout(int w)
 {
     wxHtmlCell::Layout(w);


@@ -636,14 +771,14 @@ void wxHtmlContainerCell::Layout(int w)
        return;
     }
 
        return;
     }
 

-    wxHtmlCell *cell = m_Cells, *line = m_Cells;

     wxHtmlCell *nextCell;
     long xpos = 0, ypos = m_IndentTop;
     int xdelta = 0, ybasicpos = 0, ydiff;
     int s_width, nextWordWidth, s_indent;
     int ysizeup = 0, ysizedown = 0;
     int MaxLineWidth = 0;
     wxHtmlCell *nextCell;
     long xpos = 0, ypos = m_IndentTop;
     int xdelta = 0, ybasicpos = 0, ydiff;
     int s_width, nextWordWidth, s_indent;
     int ysizeup = 0, ysizedown = 0;
     int MaxLineWidth = 0;

-    int xcnt = 0;
+    int curLineWidth = 0;
+    m_MaxTotalWidth = 0;

 
 
     /*
 
 
     /*


@@ -682,6 +817,8 @@ void wxHtmlContainerCell::Layout(int w)
     s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 
     // my own layouting:
     s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 
     // my own layouting:

+    wxHtmlCell *cell = m_Cells,
+               *line = m_Cells;

     while (cell != NULL)
     {
         switch (m_AlignVer)
     while (cell != NULL)
     {
         switch (m_AlignVer)


@@ -698,9 +835,22 @@ void wxHtmlContainerCell::Layout(int w)
         // layout nonbreakable run of cells:
         cell->SetPos(xpos, ybasicpos + cell->GetDescent());
         xpos += cell->GetWidth();
         // 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();
         cell = cell->GetNext();

-        xcnt++;
-            
+

         // compute length of the next word that would be added:
         nextWordWidth = 0;
         if (cell)
         // compute length of the next word that would be added:
         nextWordWidth = 0;
         if (cell)


@@ -712,9 +862,9 @@ void wxHtmlContainerCell::Layout(int w)
                 nextCell = nextCell->GetNext();
             } while (nextCell && !nextCell->IsLinebreakAllowed());
         }
                 nextCell = nextCell->GetNext();
             } while (nextCell && !nextCell->IsLinebreakAllowed());
         }

-        
-        // force new line if occured:
-        if ((cell == NULL) || 
+
+        // force new line if occurred:
+        if ((cell == NULL) ||

             (xpos + nextWordWidth > s_width && cell->IsLinebreakAllowed()))
         {
             if (xpos > MaxLineWidth) MaxLineWidth = xpos;
             (xpos + nextWordWidth > s_width && cell->IsLinebreakAllowed()))
         {
             if (xpos > MaxLineWidth) MaxLineWidth = xpos;


@@ -738,29 +888,99 @@ void wxHtmlContainerCell::Layout(int w)
             ypos += ysizeup;
 
             if (m_AlignHor != wxHTML_ALIGN_JUSTIFY || cell == NULL)
             ypos += ysizeup;
 
             if (m_AlignHor != wxHTML_ALIGN_JUSTIFY || cell == NULL)

+            {

                 while (line != cell)
                 {
                     line->SetPos(line->GetPosX() + xdelta,
                                    ypos + line->GetPosY());
                     line = line->GetNext();
                 }
                 while (line != cell)
                 {
                     line->SetPos(line->GetPosX() + xdelta,
                                    ypos + line->GetPosY());
                     line = line->GetNext();
                 }

-            else
+            }
+            else // align == justify

             {
             {

-                int counter = 0;
-                int step = (s_width - xpos);
-                if (step < 0) step = 0;
-                xcnt--;
-                if (xcnt > 0) while (line != cell)
+                // 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 )

                 {
                 {

-                    line->SetPos(line->GetPosX() + s_indent +
-                                   (counter++ * step / xcnt),
-                                   ypos + line->GetPosY());
-                    line = line->GetNext();
+                    // first count the cells which will get extra space
+                    int total = -1;
+
+                    const wxHtmlCell *c;
+                    if ( line != cell )
+                    {
+                        for ( c = line; c != cell; c = c->GetNext() )
+                        {
+                            if ( c->IsLinebreakAllowed() )
+                            {
+                                total++;
+                            }
+                        }
+                    }
+
+                    // and now extra space to those cells which merit it
+                    if ( total )
+                    {
+                        // first visible cell on line is not moved:
+                        while (line !=cell && !line->IsLinebreakAllowed())
+                        {
+                            line->SetPos(line->GetPosX() + s_indent,
+                                         line->GetPosY() + ypos);
+                            line = line->GetNext();
+                        }
+
+                        if (line != cell)
+                        {
+                            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;

-            xpos = xcnt = 0;
+            xpos = 0;

             ysizeup = ysizedown = 0;
             line = cell;
         }
             ysizeup = ysizedown = 0;
             line = cell;
         }


@@ -785,6 +1005,10 @@ void wxHtmlContainerCell::Layout(int w)
         m_Height = m_MinHeight;
     }
 
         m_Height = m_MinHeight;
     }
 

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


@@ -823,52 +1047,60 @@ void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
     dc.SetPen(*wxRED_PEN);
     dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
 #endif
     dc.SetPen(*wxRED_PEN);
     dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
 #endif

-    // container visible, draw it:
-    if ((y + m_PosY <= view_y2) && (y + m_PosY + m_Height > view_y1))
+
+    int xlocal = x + m_PosX;
+    int ylocal = y + m_PosY;
+
+    if (m_UseBkColour)

     {
     {

-        if (m_UseBkColour)
-        {
-            wxBrush myb = wxBrush(m_BkColour, wxSOLID);
+        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);
+        int real_y1 = mMax(ylocal, view_y1);
+        int real_y2 = mMin(ylocal + m_Height - 1, view_y2);

 
 

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

 
 

-        if (m_UseBorder)
-        {
-            wxPen mypen1(m_BorderColour1, 1, wxSOLID);
-            wxPen mypen2(m_BorderColour2, 1, 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, 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, y + m_PosY + m_Height - 1);
-        }
+    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);
+    }

 
 

-        if (m_Cells)
+    if (m_Cells)
+    {
+        // draw container's contents:
+        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())

         {
         {

-            // 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,
                 UpdateRenderingStatePre(info, cell);
                 cell->Draw(dc,

-                           x + m_PosX, y + m_PosY, view_y1, view_y2,
+                           xlocal, ylocal, view_y1, view_y2,

                            info);
                 UpdateRenderingStatePost(info, cell);
             }
                            info);
                 UpdateRenderingStatePost(info, cell);
             }

+            else
+            {
+                // the cell is off-screen, proceed with font+color+etc.
+                // changes only:
+                cell->DrawInvisible(dc, xlocal, ylocal, info);
+            }

         }
     }
         }
     }

-    // container invisible, just proceed font+color changing:
-    else
-    {
-        DrawInvisible(dc, x, y, info);
-    }

 }
 
 
 }
 
 


@@ -952,7 +1184,7 @@ void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale
         int wdi;
         wxString wd = tag.GetParam(wxT("WIDTH"));
 
         int wdi;
         wxString wd = tag.GetParam(wxT("WIDTH"));
 

-        if (wd[wd.Length()-1] == wxT('%'))
+        if (wd[wd.length()-1] == wxT('%'))

         {
             wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
             SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
         {
             wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
             SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);


@@ -1007,10 +1239,10 @@ wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y,
             if ( cell->IsFormattingCell() )
                 continue;
             int cellY = cell->GetPosY();
             if ( cell->IsFormattingCell() )
                 continue;
             int cellY = cell->GetPosY();

-            if (!( y < cellY || (y < cellY + cell->GetHeight() && 
+            if (!( y < cellY || (y < cellY + cell->GetHeight() &&

                                  x < cell->GetPosX() + cell->GetWidth()) ))
                 continue;
                                  x < cell->GetPosX() + cell->GetWidth()) ))
                 continue;

-            
+

             c = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
             if (c) return c;
         }
             c = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
             if (c) return c;
         }


@@ -1037,13 +1269,34 @@ wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y,
 }
 
 
 }
 
 

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

 {
 {

-    wxHtmlCell *cell = FindCellByPos(x, y);
-    if ( cell )
-        cell->OnMouseClick(parent, x, y, event);
+#if WXWIN_COMPATIBILITY_2_6
+    wxHtmlCellOnMouseClickCompatHelper compat(window, pos, event);
+    return compat.CallOnMouseClick(this);

 }
 
 }
 

+void wxHtmlContainerCell::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
+
+    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
 
 
 wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const


@@ -1096,7 +1349,7 @@ static bool IsEmptyContainer(wxHtmlContainerCell *cell)
 }
 
 void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)
 }
 
 void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)

-{   
+{

     if ( top )
         SetIndent(0, wxHTML_INDENT_TOP);
     if ( bottom )
     if ( top )
         SetIndent(0, wxHTML_INDENT_TOP);
     if ( bottom )


@@ -1130,13 +1383,13 @@ void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)
                 }
             }
         }
                 }
             }
         }

-        
+

         if ( bottom )
         {
             wxArrayPtrVoid arr;
             for ( c = m_Cells; c; c = c->GetNext() )
                 arr.Add((void*)c);
         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];
             for ( int i = arr.GetCount() - 1; i >= 0; i--)
             {
                 c = (wxHtmlCell*)arr[i];


@@ -1150,7 +1403,8 @@ void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)
                     cont = (wxHtmlContainerCell*)c;
                     if ( IsEmptyContainer(cont) )
                     {
                     cont = (wxHtmlContainerCell*)c;
                     if ( IsEmptyContainer(cont) )
                     {

-                        cont->SetIndent(0, wxHTML_INDENT_VERTICAL);                                 }
+                        cont->SetIndent(0, wxHTML_INDENT_VERTICAL);
+                    }

                     else
                     {
                         cont->RemoveExtraSpacing(false, true);
                     else
                     {
                         cont->RemoveExtraSpacing(false, true);


@@ -1271,8 +1525,15 @@ void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc),
         c = c->GetParent();
     }
 
         c = c->GetParent();
     }
 

-    ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
-    m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
+    wxScrolledWindow *scrolwin =
+        wxDynamicCast(m_Wnd->GetParent(), wxScrolledWindow);
+    wxCHECK_RET( scrolwin,
+                 _T("widget cells can only be placed in wxHtmlWindow") );
+
+    scrolwin->GetViewStart(&stx, &sty);
+    m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx,
+                   absy  - wxHTML_SCROLL_STEP * sty,
+                   m_Width, m_Height);

 }
 
 
 }
 
 


@@ -1348,29 +1609,4 @@ const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++()
     return m_pos;
 }
 
     return m_pos;
 }
 

-
-
-
-
-
-
-//-----------------------------------------------------------------------------
-// Cleanup
-//-----------------------------------------------------------------------------
-
-class wxHtmlCellModule: public wxModule
-{
-DECLARE_DYNAMIC_CLASS(wxHtmlCellModule)
-public:
-    wxHtmlCellModule() : wxModule() {}
-    bool OnInit() { return true; }
-    void OnExit()
-    {
-        wxDELETE(gs_cursorLink);
-        wxDELETE(gs_cursorText);
-    }
-};
-
-IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellModule, wxModule)
-

 #endif
 #endif