Added knowledge of virtual size to wx(Scrolled)Windows, they can now

manage their own scrollbars with the help of a sizer or other user
clues (SetVirtualSizeHints) without the need for an ancillary container.
Added SetSizerAndFit convenience method.
SetSizer now enables/disables AutoLayout automagically.
Logic bugfix for scrollsub sample.
Syntax bugfix in parser.y.
Compiler warning fix in textctrl.cpp.

 Modified Files:
    docs/latex/wx/scrolwin.tex docs/latex/wx/sizer.tex
    docs/latex/wx/window.tex include/wx/scrolwin.h
    include/wx/sizer.h include/wx/window.h
    include/wx/generic/scrolwin.h include/wx/gtk/scrolwin.h
    samples/scrollsub/scrollsub.cpp src/common/parser.y
    src/common/sizer.cpp src/common/wincmn.cpp
    src/generic/scrlwing.cpp src/gtk/scrolwin.cpp
    src/msw/textctrl.cpp


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15210 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/scrolwin.h

@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        wx/generic/scrolwin.h
+// Name:        wx/gtk/scrolwin.h
 // Purpose:     wxScrolledWindow class
 // Author:      Robert Roebling
 // Modified by:
@@ -65,9 +65,17 @@ public:
     virtual void SetTargetWindow( wxWindow *target, bool pushEventHandler = FALSE );
     virtual wxWindow *GetTargetWindow();
 
+    // Set the scrolled area of the window.
+    virtual void DoSetVirtualSize( int x, int y );
+
+    // Set the x, y scrolling increments.
+    void SetScrollRate( int xstep, int ystep );
+
     // Number of pixels per user unit (0 or -1 for no scrollbar)
     // Length of virtual canvas in user units
     // Length of page in user units
+    // Default action is to set the virtual size and alter scrollbars
+    // accordingly.
     virtual void SetScrollbars(int pixelsPerUnitX, int pixelsPerUnitY,
                              int noUnitsX, int noUnitsY,
                              int xPos = 0, int yPos = 0,
@@ -95,9 +103,6 @@ public:
     void ViewStart(int *x, int *y) const
        { GetViewStart( x, y ); }
 
-    // Actual size in pixels when scrolling is taken into account
-    virtual void GetVirtualSize(int *x, int *y) const;
-
     // translate between scrolled and unscrolled coordinates
     void CalcScrolledPosition(int x, int y, int *xx, int *yy) const
         {  DoCalcScrolledPosition(x, y, xx, yy); }
@@ -163,10 +168,12 @@ protected:
     int                   m_yScrollPixelsPerLine;
     bool                  m_xScrollingEnabled;
     bool                  m_yScrollingEnabled;
+
+    // FIXME: these next four members are duplicated in the GtkAdjustment
+    //        members of wxWindow.  Can they be safely removed from here?
+
     int                   m_xScrollPosition;
     int                   m_yScrollPosition;
-    int                   m_xScrollLines;
-    int                   m_yScrollLines;
     int                   m_xScrollLinesPerPage;
     int                   m_yScrollLinesPerPage;
 
@@ -179,3 +186,5 @@ private:
 
 #endif
     // _WX_GTK_SCROLLWIN_H_
+
+// vi:sts=4:sw=4:et