*** empty log message ***

[wxWidgets.git] / samples / richedit / wxllist.cpp

diff --git a/samples/richedit/wxllist.cpp b/samples/richedit/wxllist.cpp
index f6b6032c9cc2e63fffa75440edd588c6a92de1c6..e4ca6a41979a983496d640adc4fc8090a7124d8d 100644 (file)
--- a/samples/richedit/wxllist.cpp
+++ b/samples/richedit/wxllist.cpp
@@ -622,20 +622,25 @@ wxLayoutObjectCmd::Layout(wxDC &dc, class wxLayoutList * llist)
 
 wxLayoutLine::wxLayoutLine(wxLayoutLine *prev, wxLayoutList *llist)
 {
 
 wxLayoutLine::wxLayoutLine(wxLayoutLine *prev, wxLayoutList *llist)
 {

-   m_LineNumber = 0;

    m_Width = m_Height = 0;
    m_Length = 0;
    m_Width = m_Height = 0;
    m_Length = 0;

+

    m_updateLeft = -1;
    MarkDirty(0);
    m_updateLeft = -1;
    MarkDirty(0);

+

    m_Previous = prev;
    m_Next = NULL;
    m_Previous = prev;
    m_Next = NULL;

+
+   m_LineNumber = 0;

    RecalculatePosition(llist);
    RecalculatePosition(llist);

+

    if(m_Previous)
    {
    if(m_Previous)
    {

-      m_LineNumber = m_Previous->GetLineNumber()+1;
+      m_LineNumber = m_Previous->GetLineNumber() + 1;

       m_Next = m_Previous->GetNextLine();
       m_Previous->m_Next = this;
    }
       m_Next = m_Previous->GetNextLine();
       m_Previous->m_Next = this;
    }

+

    if(m_Next)
    {
       m_Next->m_Previous = this;
    if(m_Next)
    {
       m_Next->m_Previous = this;


@@ -644,6 +649,8 @@ wxLayoutLine::wxLayoutLine(wxLayoutLine *prev, wxLayoutList *llist)
    }
 
    m_StyleInfo = llist->GetDefaultStyleInfo();
    }
 
    m_StyleInfo = llist->GetDefaultStyleInfo();

+
+   llist->IncNumLines();

 }
 
 wxLayoutLine::~wxLayoutLine()
 }
 
 wxLayoutLine::~wxLayoutLine()


@@ -734,30 +741,45 @@ wxLayoutLine::FindObject(CoordType xpos, CoordType *offset) const
 }
 
 wxLayoutObjectList::iterator
 }
 
 wxLayoutObjectList::iterator

-wxLayoutLine::FindObjectScreen(wxDC &dc,
+wxLayoutLine::FindObjectScreen(wxDC &dc, wxLayoutList *llist,

                                CoordType xpos, CoordType *cxpos,
                                bool *found) const
 {
    wxASSERT(cxpos);
                                CoordType xpos, CoordType *cxpos,
                                bool *found) const
 {
    wxASSERT(cxpos);

-   wxASSERT(cxpos);
+
+   llist->ApplyStyle(GetStyleInfo(), dc);
+

    wxLayoutObjectList::iterator i;
    CoordType x = 0, cx = 0, width;
 
    for(i = m_ObjectList.begin(); i != NULLIT; i++)
    {
    wxLayoutObjectList::iterator i;
    CoordType x = 0, cx = 0, width;
 
    for(i = m_ObjectList.begin(); i != NULLIT; i++)
    {

-      width = (**i).GetWidth();
+      wxLayoutObject *obj = *i;
+      if ( obj->GetType() == WXLO_TYPE_CMD )
+      {
+         // this will set the correct font for the objects which follow
+         obj->Layout(dc, llist);
+      }
+
+      width = obj->GetWidth();

       if( x <= xpos && xpos <= x + width )
       {
       if( x <= xpos && xpos <= x + width )
       {

-         *cxpos = cx + (**i).GetOffsetScreen(dc, xpos-x);
-         if(found) *found = true;
+         *cxpos = cx + obj->GetOffsetScreen(dc, xpos-x);
+
+         if ( found )
+             *found = true;

          return i;
       }
          return i;
       }

-      x += (**i).GetWidth();
-      cx += (**i).GetLength();
+
+      x += obj->GetWidth();
+      cx += obj->GetLength();

    }
    }

+

    // behind last object:
    *cxpos = cx;
    // behind last object:
    *cxpos = cx;

-   if(found) *found = false;
+
+   if (found)
+       *found = false;

    return m_ObjectList.tail();
 }
 
    return m_ObjectList.tail();
 }
 


@@ -1004,12 +1026,24 @@ wxLayoutLine::DeleteWord(CoordType xpos)
 wxLayoutLine *
 wxLayoutLine::DeleteLine(bool update, wxLayoutList *llist)
 {
 wxLayoutLine *
 wxLayoutLine::DeleteLine(bool update, wxLayoutList *llist)
 {

-   if(m_Next) m_Next->m_Previous = m_Previous;
-   if(m_Previous) m_Previous->m_Next = m_Next;
+   // maintain linked list integrity
+   if(m_Next)
+       m_Next->m_Previous = m_Previous;
+   if(m_Previous)
+       m_Previous->m_Next = m_Next;
+
+   wxLayoutLine *next = m_Next;
+   if ( next )
+   {
+      // get the line numbers right again
+      next->MoveLines(-1);
+   }
+

    if(update)
    {
    if(update)
    {

-      m_Next->MoveLines(-1);
-      m_Next->RecalculatePositions(1, llist);
+      if ( next )
+         next->RecalculatePositions(1, llist);
+

       /* We assume that if we have more than one object in the list,
          this means that we have a command object, so we need to
          update the following lines. */
       /* We assume that if we have more than one object in the list,
          this means that we have a command object, so we need to
          update the following lines. */


@@ -1019,8 +1053,11 @@ wxLayoutLine::DeleteLine(bool update, wxLayoutList *llist)
          )
          MarkNextDirty(-1);
    }
          )
          MarkNextDirty(-1);
    }

-   wxLayoutLine *next = m_Next;
+

    delete this;
    delete this;

+
+   llist->DecNumLines();
+

    return next;
 }
 
    return next;
 }
 


@@ -1358,6 +1395,8 @@ wxLayoutLine::MergeNextLine(wxLayoutList *llist)
 #endif // 0
    }
 
 #endif // 0
    }
 

+   llist->DecNumLines();
+

    delete oldnext;
 }
 
    delete oldnext;
 }
 


@@ -1513,6 +1552,7 @@ wxLayoutList::wxLayoutList()
    m_caret = NULL;
 #endif // WXLAYOUT_USE_CARET
 
    m_caret = NULL;
 #endif // WXLAYOUT_USE_CARET
 

+   m_numLines = 0;

    m_FirstLine = NULL;
    InvalidateUpdateRect();
    Clear();
    m_FirstLine = NULL;
    InvalidateUpdateRect();
    Clear();


@@ -1521,7 +1561,10 @@ wxLayoutList::wxLayoutList()
 wxLayoutList::~wxLayoutList()
 {
    InternalClear();
 wxLayoutList::~wxLayoutList()
 {
    InternalClear();

+   Empty();

    m_FirstLine->DeleteLine(false, this);
    m_FirstLine->DeleteLine(false, this);

+
+   wxASSERT_MSG( m_numLines == 0, "line count calculation broken" );

 }
 
 void
 }
 
 void


@@ -1543,7 +1586,6 @@ wxLayoutList::Empty(void)
 void
 wxLayoutList::InternalClear(void)
 {
 void
 wxLayoutList::InternalClear(void)
 {

-   Empty();

    m_Selection.m_selecting = false;
    m_Selection.m_valid = false;
 
    m_Selection.m_selecting = false;
    m_Selection.m_valid = false;
 


@@ -1608,6 +1650,11 @@ wxLayoutList::Clear(int family, int size, int style, int weight,
    m_DefaultStyleInfo = wxLayoutStyleInfo(family, size, style, weight,
                                         underline, fg, bg);
    m_CurrentStyleInfo = m_DefaultStyleInfo;
    m_DefaultStyleInfo = wxLayoutStyleInfo(family, size, style, weight,
                                         underline, fg, bg);
    m_CurrentStyleInfo = m_DefaultStyleInfo;

+
+   // Empty() should be called after we set m_DefaultStyleInfo because
+   // otherwise the style info for the first line (created in Empty()) would be
+   // incorrect
+   Empty();

 }
 
 wxPoint
 }
 
 wxPoint


@@ -1775,14 +1822,53 @@ wxLayoutList::MoveCursorWord(int n, bool untilNext)
 
    CoordType moveDistance = 0;
    CoordType offset;
 
    CoordType moveDistance = 0;
    CoordType offset;

-   for ( wxLOiterator i = m_CursorLine->FindObject(m_CursorPos.x, &offset);
+   wxLayoutLine *lineCur = m_CursorLine;
+   for ( wxLOiterator i = lineCur->FindObject(m_CursorPos.x, &offset);

          n != 0;
          n > 0 ? i++ : i-- )
    {
       if ( i == NULLIT )
          n != 0;
          n > 0 ? i++ : i-- )
    {
       if ( i == NULLIT )

-         return false;
+      {
+         if ( n > 0 )
+         {
+            // moving forward, pass to the first object of the next line
+            moveDistance++;
+            lineCur = lineCur->GetNextLine();
+            if ( lineCur )
+               i = lineCur->GetFirstObject();
+         }
+         else
+         {
+            // moving backwards, pass to the last object of the prev line
+            moveDistance--;
+            lineCur = lineCur->GetPreviousLine();
+            if ( lineCur )
+               i = lineCur->GetLastObject();
+         }
+
+         if ( i == NULLIT )
+         {
+            // moved to the end/beginning of text
+            return false;
+         }
+
+         offset = -1;
+      }

 
       wxLayoutObject *obj = *i;
 
       wxLayoutObject *obj = *i;

+
+      if ( offset == -1 )
+      {
+         // calculate offset: we are either at the very beginning or the very
+         // end of the object, so it isn't very difficult (the only time when
+         // offset is != -1 is for the very first iteration when its value is
+         // returned by FindObject)
+         if ( n > 0 )
+            offset = 0;
+         else
+            offset = obj->GetLength();
+      }
+

       if( obj->GetType() != WXLO_TYPE_TEXT )
       {
          // any visible non text objects count as one word
       if( obj->GetType() != WXLO_TYPE_TEXT )
       {
          // any visible non text objects count as one word


@@ -1805,9 +1891,11 @@ wxLayoutList::MoveCursorWord(int n, bool untilNext)
             if ( n > 0 )
             {
                // can't move further in this text object
             if ( n > 0 )
             {
                // can't move further in this text object

-               n--;
-

                canAdvance = false;
                canAdvance = false;

+
+               // still should move over the object border
+               moveDistance++;
+               n--;

             }
             else if ( offset > 0 )
             {
             }
             else if ( offset > 0 )
             {


@@ -1859,14 +1947,26 @@ wxLayoutList::MoveCursorWord(int n, bool untilNext)
                }
             }
 
                }
             }
 

-            n > 0 ? n-- : n++;
+            CoordType moveDelta = p - start - offset;
+            if ( (n < 0) && (offset == tobj->GetLength() - 1) )
+            {
+               // because we substracted 1 from offset in this case above, now
+               // compensate for it
+               moveDelta--;
+            }
+
+            if ( moveDelta != 0 )
+            {
+               moveDistance += moveDelta;

 
 

-            moveDistance = p - start - offset;
+               n > 0 ? n-- : n++;
+            }

          }
       }
 
          }
       }
 

-      // except for the first iteration, offset is 0
-      offset = 0;
+      // except for the first iteration, offset is calculated in the beginning
+      // of the loop
+      offset = -1;

    }
 
    MoveCursorHorizontally(moveDistance);
    }
 
    MoveCursorHorizontally(moveDistance);


@@ -1940,7 +2040,6 @@ bool
 wxLayoutList::LineBreak(void)
 {
    wxASSERT(m_CursorLine);
 wxLayoutList::LineBreak(void)
 {
    wxASSERT(m_CursorLine);

-   bool setFirst = (m_CursorLine == m_FirstLine && m_CursorPos.x == 0);

 
    AddCursorPosToUpdateRect();
 
 
    AddCursorPosToUpdateRect();
 


@@ -1951,14 +2050,12 @@ wxLayoutList::LineBreak(void)
       height = m_CursorLine->GetHeight();
 
    m_CursorLine = m_CursorLine->Break(m_CursorPos.x, this);
       height = m_CursorLine->GetHeight();
 
    m_CursorLine = m_CursorLine->Break(m_CursorPos.x, this);

-   if(setFirst) // we were at beginning of first line
+   if(m_CursorLine->GetPreviousLine() == NULL)

       m_FirstLine = m_CursorLine;
       m_FirstLine = m_CursorLine;

-   wxASSERT(m_FirstLine);
-   if(m_CursorPos.x != 0)
+   if(m_CursorPos.x > 0)

       m_CursorPos.y++;
    m_CursorPos.x = 0;
 
       m_CursorPos.y++;
    m_CursorPos.x = 0;
 

-

    // The following code will produce a height which is guaranteed to
    // be too high: old lineheight + the height of both new lines.
    // We can probably drop the old line height and start with height = 
    // The following code will produce a height which is guaranteed to
    // be too high: old lineheight + the height of both new lines.
    // We can probably drop the old line height and start with height = 


@@ -2248,17 +2345,19 @@ wxLayoutList::Draw(wxDC &dc,
    {
       // only draw if between top and bottom:
       if((top == -1 ||
    {
       // only draw if between top and bottom:
       if((top == -1 ||

-          line->GetPosition().y + line->GetHeight() >= top))
+          line->GetPosition().y + line->GetHeight() > top))

       {
 //         if(! style_set)
          {
             ApplyStyle(line->GetStyleInfo(), dc);
             style_set = true;
          }
       {
 //         if(! style_set)
          {
             ApplyStyle(line->GetStyleInfo(), dc);
             style_set = true;
          }

+         // little condition to speed up redrawing:
+         if(bottom != -1
+            && line->GetPosition().y+line->GetHeight() >= bottom)
+            break;

          line->Draw(dc, this, offset);
       }
          line->Draw(dc, this, offset);
       }

-      // little condition to speed up redrawing:
-      if(bottom != -1 && line->GetPosition().y > bottom) break;

       line = line->GetNextLine();
    }
    InvalidateUpdateRect();
       line = line->GetNextLine();
    }
    InvalidateUpdateRect();


@@ -2275,7 +2374,9 @@ wxLayoutList::FindObjectScreen(wxDC &dc, wxPoint const pos,
                                bool *found)
 {
    // First, find the right line:
                                bool *found)
 {
    // First, find the right line:

-   wxLayoutLine *line = m_FirstLine;
+   wxLayoutLine
+      *line = m_FirstLine,
+      *lastline = m_FirstLine;

    wxPoint p;
 
    ApplyStyle(m_DefaultStyleInfo, dc);
    wxPoint p;
 
    ApplyStyle(m_DefaultStyleInfo, dc);


@@ -2284,28 +2385,30 @@ wxLayoutList::FindObjectScreen(wxDC &dc, wxPoint const pos,
       p = line->GetPosition();
       if(p.y <= pos.y && p.y+line->GetHeight() >= pos.y)
          break;
       p = line->GetPosition();
       if(p.y <= pos.y && p.y+line->GetHeight() >= pos.y)
          break;

-#if 0
-      // we need to run a layout here to get font sizes right :-(
-
-      // VZ: we can't call Layout() from here because it marks the line as
-      //     clean and it is not refreshed when it's called from wxLayoutList::
-      //     Layout() - if we really need to do this, we should introduce an
-      //     extra argument to Layout() to prevent the line from MarkClean()ing
-      //     itself here
-      line->Layout(dc, this);
-#endif
+      lastline = line;

       line = line->GetNextLine();
    }
       line = line->GetNextLine();
    }

-   if(line == NULL)
+
+   bool didFind = line != NULL;
+
+   if ( !line )

    {
    {

-      if(found) *found = false;
-      return NULL; // not found
+      // use the last line:
+      line = lastline;

    }
    }

-   if(cursorPos) cursorPos->y = line->GetLineNumber();
+
+   if ( cursorPos )
+       cursorPos->y = line->GetLineNumber();
+
+   bool foundinline = true;

    // Now, find the object in the line:
    // Now, find the object in the line:

-   wxLOiterator i = line->FindObjectScreen(dc, pos.x,
-                                           cursorPos ? & cursorPos->x : NULL ,
-                                           found);
+   wxLOiterator i = line->FindObjectScreen(dc, this,
+                                           pos.x,
+                                           cursorPos ? &cursorPos->x : NULL,
+                                           &foundinline);
+   if ( found )
+      *found = didFind && foundinline;
+

    return (i == NULLIT) ? NULL : *i;
 
 }
    return (i == NULLIT) ? NULL : *i;
 
 }


@@ -2374,10 +2477,10 @@ wxLayoutList::DrawCursor(wxDC &dc, bool active, wxPoint const &translate)
 #else // !WXLAYOUT_USE_CARET
    dc.SetBrush(*wxWHITE_BRUSH);
    //FIXME: wxGTK XOR is borken at the moment!!!dc.SetLogicalFunction(wxXOR);
 #else // !WXLAYOUT_USE_CARET
    dc.SetBrush(*wxWHITE_BRUSH);
    //FIXME: wxGTK XOR is borken at the moment!!!dc.SetLogicalFunction(wxXOR);

-   dc.SetLogicalFunction(wxXOR);

    dc.SetPen(wxPen(*wxBLACK,1,wxSOLID));
    if(active)
    {
    dc.SetPen(wxPen(*wxBLACK,1,wxSOLID));
    if(active)
    {

+      dc.SetLogicalFunction(wxXOR);

       dc.DrawRectangle(coords.x, coords.y,
                        m_CursorSize.x, m_CursorSize.y);
       SetUpdateRect(coords.x, coords.y);
       dc.DrawRectangle(coords.x, coords.y,
                        m_CursorSize.x, m_CursorSize.y);
       SetUpdateRect(coords.x, coords.y);


@@ -2385,6 +2488,7 @@ wxLayoutList::DrawCursor(wxDC &dc, bool active, wxPoint const &translate)
    }
    else
    {
    }
    else
    {

+      dc.SetLogicalFunction(wxCOPY);

       dc.DrawLine(coords.x, coords.y+m_CursorSize.y-1,
                   coords.x, coords.y);
       SetUpdateRect(coords.x, coords.y+m_CursorSize.y-1);
       dc.DrawLine(coords.x, coords.y+m_CursorSize.y-1,
                   coords.x, coords.y);
       SetUpdateRect(coords.x, coords.y+m_CursorSize.y-1);


@@ -2556,44 +2660,29 @@ wxLayoutList::DeleteSelection(void)
       return;
    }
 
       return;
    }
 

+   // We now know that the two lines are different:

 
    wxLayoutLine
 
    wxLayoutLine

-      * firstLine = NULL,
-      * lastLine = NULL;
-
-   for(firstLine = m_FirstLine;
-       firstLine && firstLine->GetLineNumber() < m_Selection.m_CursorA.y;
-       firstLine=firstLine->GetNextLine())
-      ;
-   if(!firstLine || firstLine->GetLineNumber() != m_Selection.m_CursorA.y)
-      return;
-
-
-   for(lastLine = m_FirstLine;
-       lastLine && lastLine->GetLineNumber() < m_Selection.m_CursorB.y;
-       lastLine=lastLine->GetNextLine())
-      ;
-   if(!lastLine || lastLine->GetLineNumber() != m_Selection.m_CursorB.y)
-      return;
-
-
-   // We now know that the two lines are different:
+      * firstLine = GetLine(m_Selection.m_CursorA.y),
+      * lastLine = GetLine(m_Selection.m_CursorB.y);

 
    // First, delete what's left of this line:
    MoveCursorTo(m_Selection.m_CursorA);
    DeleteToEndOfLine();
 
 
    // First, delete what's left of this line:
    MoveCursorTo(m_Selection.m_CursorA);
    DeleteToEndOfLine();
 

-   wxLayoutLine *nextLine = firstLine->GetNextLine();
+   wxLayoutLine *prevLine = firstLine->GetPreviousLine(),
+                *nextLine = firstLine->GetNextLine();

    while(nextLine && nextLine != lastLine)
       nextLine = nextLine->DeleteLine(false, this);
 
    // Now nextLine = lastLine;
    Delete(1); // This joins firstLine and nextLine
    while(nextLine && nextLine != lastLine)
       nextLine = nextLine->DeleteLine(false, this);
 
    // Now nextLine = lastLine;
    Delete(1); // This joins firstLine and nextLine

-   Delete(m_Selection.m_CursorB.x); // This deletes the first x
-   // positions
+   Delete(m_Selection.m_CursorB.x); // This deletes the first x positions

 
 

-   /// Recalculate:
-   firstLine->RecalculatePositions(1, this);
+   // Recalculate the line positions and numbers but notice that firstLine
+   // might not exist any more - it could be deleted by Delete(1) above
+   wxLayoutLine *firstLine2 = prevLine ? prevLine->GetNextLine() : m_FirstLine;
+   firstLine2->RecalculatePositions(1, this);

 }
 
 /// Starts highlighting the selection
 }
 
 /// Starts highlighting the selection


@@ -2839,6 +2928,9 @@ bool wxLayoutPrintout::OnPrintPage(int page)
       int top, bottom;
       top = (page - 1)*m_PrintoutHeight;
       bottom = top + m_PrintoutHeight;
       int top, bottom;
       top = (page - 1)*m_PrintoutHeight;
       bottom = top + m_PrintoutHeight;

+
+      WXLO_DEBUG(("OnPrintPage(%d) printing from %d to %d", page, top, 
+                  bottom));

       // SetDeviceOrigin() doesn't work here, so we need to manually
       // translate all coordinates.
       wxPoint translate(m_Offset.x,m_Offset.y-top);
       // SetDeviceOrigin() doesn't work here, so we need to manually
       // translate all coordinates.
       wxPoint translate(m_Offset.x,m_Offset.y-top);


@@ -2863,13 +2955,21 @@ void wxLayoutPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom,
    float scale = ScaleDC(&psdc);
 
    psdc.GetSize(&m_PageWidth, &m_PageHeight);
    float scale = ScaleDC(&psdc);
 
    psdc.GetSize(&m_PageWidth, &m_PageHeight);

-   // This sets a left/top origin of 15% and 20%:
-   m_Offset = wxPoint((15*m_PageWidth)/100, m_PageHeight/20);
+
+   // This sets a left/top origin of 15% and 5%:
+   m_Offset = wxPoint((15*m_PageWidth)/100, (5*m_PageHeight)/100);

 
    // This is the length of the printable area.
 
    // This is the length of the printable area.

-   m_PrintoutHeight = m_PageHeight - (int) (m_PageHeight * 0.15);
+   m_PrintoutHeight = m_PageHeight - 2*m_Offset.y;

    m_PrintoutHeight = (int)( m_PrintoutHeight / scale); // we want to use the real paper height
    m_PrintoutHeight = (int)( m_PrintoutHeight / scale); // we want to use the real paper height

-
+#if 0
+   // We should really use the margin settings of wxWindows somehow.
+   m_Offset = wxPoint(0,0);
+   // This is the length of the printable area.
+   m_PrintoutHeight = m_PageHeight;
+   m_PrintoutHeight = (int)( m_PrintoutHeight / scale); // we want to use the real paper height
+#endif
+   

 
    m_NumOfPages = 1 +
       (int)( m_llist->GetSize().y / (float)(m_PrintoutHeight));
 
    m_NumOfPages = 1 +
       (int)( m_llist->GetSize().y / (float)(m_PrintoutHeight));