fixed bug in FindAbsoluteValidPath() which returned cwd instead of empty string if...

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

diff --git a/src/html/htmlcell.cpp b/src/html/htmlcell.cpp
index e692487a1da5bb46618e41f80f01c502b88b9bbc..90dfc46e46bcab00cdb536dca420e4cad385e76c 100644 (file)
--- a/src/html/htmlcell.cpp
+++ b/src/html/htmlcell.cpp
@@ -4,10 +4,10 @@
 // Author:      Vaclav Slavik
 // RCS-ID:      $Id$
 // Copyright:   (c) 1999 Vaclav Slavik
 // Author:      Vaclav Slavik
 // RCS-ID:      $Id$
 // Copyright:   (c) 1999 Vaclav Slavik

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

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

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

 #pragma implementation "htmlcell.h"
 #endif
 
 #pragma implementation "htmlcell.h"
 #endif
 


@@ -62,8 +62,8 @@ void wxHtmlSelection::Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell)
     wxPoint p2 = toCell ? toCell->GetAbsPos() : wxDefaultPosition;
     if ( toCell )
     {
     wxPoint p2 = toCell ? toCell->GetAbsPos() : wxDefaultPosition;
     if ( toCell )
     {

-        p2.x += toCell->GetWidth()-1;
-        p2.y += toCell->GetHeight()-1;
+        p2.x += toCell->GetWidth();
+        p2.y += toCell->GetHeight();

     }
     Set(p1, fromCell, p2, toCell);
 }
     }
     Set(p1, fromCell, p2, toCell);
 }


@@ -87,12 +87,14 @@ GetSelectedTextBgColour(const wxColour& WXUNUSED(clr))
 // wxHtmlCell
 //-----------------------------------------------------------------------------
 
 // wxHtmlCell
 //-----------------------------------------------------------------------------
 

+IMPLEMENT_ABSTRACT_CLASS(wxHtmlCell, wxObject)
+

 wxHtmlCell::wxHtmlCell() : wxObject()
 {
     m_Next = NULL;
     m_Parent = NULL;
     m_Width = m_Height = m_Descent = 0;
 wxHtmlCell::wxHtmlCell() : wxObject()
 {
     m_Next = NULL;
     m_Parent = NULL;
     m_Width = m_Height = m_Descent = 0;

-    m_CanLiveOnPagebreak = TRUE;
+    m_CanLiveOnPagebreak = true;

     m_Link = NULL;
 }
 
     m_Link = NULL;
 }
 


@@ -137,10 +139,10 @@ bool wxHtmlCell::AdjustPagebreak(int *pagebreak, int* WXUNUSED(known_pagebreaks)
                 m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
     {
         *pagebreak = m_PosY;
                 m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
     {
         *pagebreak = m_PosY;

-        return TRUE;
+        return true;

     }
 
     }
 

-    return FALSE;
+    return false;

 }
 
 
 }
 
 


@@ -252,11 +254,13 @@ bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const
 // wxHtmlWordCell
 //-----------------------------------------------------------------------------
 
 // wxHtmlWordCell
 //-----------------------------------------------------------------------------
 

+IMPLEMENT_ABSTRACT_CLASS(wxHtmlWordCell, wxHtmlCell)
+

 wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell()
 {
     m_Word = word;
     dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);
 wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell()
 {
     m_Word = word;
     dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);

-    SetCanLiveOnPagebreak(FALSE);
+    SetCanLiveOnPagebreak(false);

     m_allowLinebreak = true;
 }
 
     m_allowLinebreak = true;
 }
 


@@ -279,7 +283,7 @@ void wxHtmlWordCell::Split(wxDC& dc,
     wxPoint pt1 = (selFrom == wxDefaultPosition) ?
                    wxDefaultPosition : selFrom - GetAbsPos();
     wxPoint pt2 = (selTo == wxDefaultPosition) ?
     wxPoint pt1 = (selFrom == wxDefaultPosition) ?
                    wxDefaultPosition : selFrom - GetAbsPos();
     wxPoint pt2 = (selTo == wxDefaultPosition) ?

-                   wxPoint(m_Width, -1) : selTo - GetAbsPos();
+                   wxPoint(m_Width, wxDefaultPosition.y) : selTo - GetAbsPos();

 
     wxCoord charW, charH;
     unsigned len = m_Word.length();
 
     wxCoord charW, charH;
     unsigned len = m_Word.length();


@@ -377,7 +381,7 @@ 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;


@@ -519,18 +523,20 @@ wxCursor wxHtmlWordCell::GetCursor() const
 // 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;

+    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;


@@ -575,7 +581,7 @@ 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;


@@ -594,13 +600,13 @@ bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak, int* known_pagebreaks,
     else
     {
         wxHtmlCell *c = GetFirstChild();
     else
     {
         wxHtmlCell *c = GetFirstChild();

-        bool rt = FALSE;
+        bool rt = false;

         int pbrk = *pagebreak - m_PosY;
 
         while (c)
         {
             if (c->AdjustPagebreak(&pbrk, known_pagebreaks, number_of_pages))
         int pbrk = *pagebreak - m_PosY;
 
         while (c)
         {
             if (c->AdjustPagebreak(&pbrk, known_pagebreaks, number_of_pages))

-                rt = TRUE;
+                rt = true;

             c = c->GetNext();
         }
         if (rt)
             c = c->GetNext();
         }
         if (rt)


@@ -631,14 +637,16 @@ void wxHtmlContainerCell::Layout(int w)
        return;
     }
 
        return;
     }
 

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

 
 
     /*
 
 
     /*


@@ -693,8 +701,21 @@ 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;
             
         // compute length of the next word that would be added:
         nextWordWidth = 0;


@@ -733,30 +754,91 @@ 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 = 0;
+
+                    const wxHtmlCell *c,
+                                     *prev = NULL,
+                                     *next wxDUMMY_INITIALIZE(NULL);
+                    for ( c = line; c != cell; prev = c, c = next )
+                    {
+                        next = c->GetNext();
+                        if ( c->IsLinebreakAllowed() &&
+                                (next == cell || next->IsLinebreakAllowed()) &&
+                                    (!prev || prev->IsLinebreakAllowed()) )
+                        {
+                            total++;
+                        }
+                    }
+
+                    // and now extra space to those cells which merit it
+                    if ( total )
+                    {
+                        prev =
+                        next = NULL;
+                        for ( int n = 0; line != cell; prev = line, line = line->GetNext() )
+                        {
+                            line->SetPos(line->GetPosX() + s_indent +
+                                           ((n * step) / total),
+                                           line->GetPosY() + ypos);
+
+                            next = line->GetNext();
+                            if ( line->IsLinebreakAllowed() &&
+                                    (next == cell ||
+                                        next->IsLinebreakAllowed()) &&
+                                        (!prev || prev->IsLinebreakAllowed()) )
+                            {
+                                // offset the next cell relative to this one
+                                // thus increasing our size
+                                n++;
+                            }
+                        }
+                    }
+                    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();
+                    }

                 }
                 }

-                xcnt++;

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

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

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


@@ -781,6 +863,10 @@ 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;
 


@@ -968,11 +1054,9 @@ const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) co
 {
     if (m_Cells)
     {
 {
     if (m_Cells)
     {

-        const wxHtmlCell *r = NULL;
-

         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
         {
         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
         {

-            r = cell->Find(condition, param);
+            const wxHtmlCell *r = cell->Find(condition, param);

             if (r) return r;
         }
     }
             if (r) return r;
         }
     }


@@ -1167,6 +1251,8 @@ void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)
 // wxHtmlColourCell
 // --------------------------------------------------------------------------
 
 // wxHtmlColourCell
 // --------------------------------------------------------------------------
 

+IMPLEMENT_ABSTRACT_CLASS(wxHtmlColourCell, wxHtmlCell)
+

 void wxHtmlColourCell::Draw(wxDC& dc,
                             int x, int y,
                             int WXUNUSED(view_y1), int WXUNUSED(view_y2),
 void wxHtmlColourCell::Draw(wxDC& dc,
                             int x, int y,
                             int WXUNUSED(view_y1), int WXUNUSED(view_y2),


@@ -1213,6 +1299,8 @@ void wxHtmlColourCell::DrawInvisible(wxDC& dc,
 // wxHtmlFontCell
 // ---------------------------------------------------------------------------
 
 // wxHtmlFontCell
 // ---------------------------------------------------------------------------
 

+IMPLEMENT_ABSTRACT_CLASS(wxHtmlFontCell, wxHtmlCell)
+

 void wxHtmlFontCell::Draw(wxDC& dc,
                           int WXUNUSED(x), int WXUNUSED(y),
                           int WXUNUSED(view_y1), int WXUNUSED(view_y2),
 void wxHtmlFontCell::Draw(wxDC& dc,
                           int WXUNUSED(x), int WXUNUSED(y),
                           int WXUNUSED(view_y1), int WXUNUSED(view_y2),


@@ -1238,6 +1326,8 @@ void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y),
 // wxHtmlWidgetCell
 // ---------------------------------------------------------------------------
 
 // wxHtmlWidgetCell
 // ---------------------------------------------------------------------------
 

+IMPLEMENT_ABSTRACT_CLASS(wxHtmlWidgetCell, wxHtmlCell)
+

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