1. fatal typo in colour copying in wxStyleInfo ctor fixed

2. yet slightly better selection handling
3. scrollbars now appear when the window is resized and disappear too
   (it's somewhat strange still...)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2735 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/richedit/wxlwindow.cpp

@@ -84,6 +84,8 @@ static const int Y_SCROLL_PAGE = 20;
 // ----------------------------------------------------------------------------
 
 BEGIN_EVENT_TABLE(wxLayoutWindow,wxScrolledWindow)
+   EVT_SIZE    (wxLayoutWindow::OnSize)
+
    EVT_PAINT    (wxLayoutWindow::OnPaint)
 
    EVT_CHAR     (wxLayoutWindow::OnChar)
@@ -159,6 +161,11 @@ wxLayoutWindow::wxLayoutWindow(wxWindow *parent)
    EnableScrolling(true, true);
    m_maxx = max.x + X_SCROLL_PAGE;
    m_maxy = max.y + Y_SCROLL_PAGE;
+
+   // no scrollbars initially (BTW, why then we do all the stuff above?)
+   m_hasHScrollbar =
+   m_hasVScrollbar = false;
+
    m_Selecting = false;
 
 #ifdef WXLAYOUT_USE_CARET
@@ -333,6 +340,10 @@ wxLayoutWindow::OnMouse(int eventId, wxMouseEvent& event)
          }
          break;
 
+      case WXLOWIN_MENU_RCLICK:
+         // remove the selection if mouse click is outside it (TODO)
+         break;
+
       case WXLOWIN_MENU_DBLCLICK:
          // select a word under cursor
          m_llist->MoveCursorTo(cursorPos);
@@ -828,17 +839,35 @@ wxLayoutWindow::InternalPaint(const wxRect *updateRect)
    }
 }
 
+void
+wxLayoutWindow::OnSize(wxSizeEvent &event)
+{
+    ResizeScrollbars();
+
+    event.Skip();
+}
+
 // change the range and position of scrollbars
 void
 wxLayoutWindow::ResizeScrollbars(bool exact)
 {
    wxPoint max = m_llist->GetSize();
+   wxSize size = GetClientSize();
 
    WXLO_DEBUG(("ResizeScrollbars: max size = (%ld, %ld)",
                (long int)max.x, (long int) max.y));
 
+   // in the absence of scrollbars we should compare with the client size
+   if ( !m_hasHScrollbar )
+      m_maxx = size.x - WXLO_ROFFSET;
+   if ( !m_hasVScrollbar )
+      m_maxy = size.y - WXLO_BOFFSET;
+
+   // check if the text hasn't become too big
+   // TODO why do we set both at once? they're independent...
    if( max.x > m_maxx - WXLO_ROFFSET || max.y > m_maxy - WXLO_BOFFSET || exact )
    {
+      // text became too large
       if ( !exact )
       {
          // add an extra bit to the sizes to avoid future updates
@@ -852,9 +881,30 @@ wxLayoutWindow::ResizeScrollbars(bool exact)
                     m_ViewStartX, m_ViewStartY,
                     true);
 
+      m_hasHScrollbar =
+      m_hasVScrollbar = true;
+
       m_maxx = max.x + X_SCROLL_PAGE;
       m_maxy = max.y + Y_SCROLL_PAGE;
    }
+   else
+   {
+      // check if the window hasn't become too big, thus making the scrollbars
+      // unnecessary
+      if ( m_hasHScrollbar && (max.x < size.x) )
+      {
+         // remove the horizontal scrollbar
+         SetScrollbars(0, -1, 0, -1, 0, -1, true);
+         m_hasHScrollbar = false;
+      }
+
+      if ( m_hasVScrollbar && (max.y < size.y) )
+      {
+         // remove the vertical scrollbar
+         SetScrollbars(-1, 0, -1, 0, -1, 0, true);
+         m_hasVScrollbar = false;
+      }
+   }
 }
 
 // ----------------------------------------------------------------------------