Don't create multiple parent-less top level frames in layout sample.

[wxWidgets.git] / include / wx / sizer.h

diff --git a/include/wx/sizer.h b/include/wx/sizer.h
index 5b8af95cdb26bbd46509ea19db8d709190f33316..29facff1e2278a182cd152c3d52c1762a4058f1f 100644 (file)
--- a/include/wx/sizer.h
+++ b/include/wx/sizer.h
@@ -1,172 +1,1316 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        sizer.h
-// Purpose:     provide wxSizer class for layounting
+// Name:        wx/sizer.h
+// Purpose:     provide wxSizer class for layout

 // Author:      Robert Roebling and Robin Dunn
 // Author:      Robert Roebling and Robin Dunn

-// Modified by:
-// Created:     
+// Modified by: Ron Lee, Vadim Zeitlin (wxSizerFlags)
+// Created:

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:   (c) Robin Dunn, Dirk Holtwick and Robert Roebling
+// Copyright:   (c) Robin Dunn, Robert Roebling

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef __WXSIZER_H__
 #define __WXSIZER_H__
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef __WXSIZER_H__
 #define __WXSIZER_H__
 

-#ifdef __GNUG__
-#pragma interface "sizer.h"
-#endif
-

 #include "wx/defs.h"
 
 #include "wx/window.h"
 #include "wx/defs.h"
 
 #include "wx/window.h"

-#include "wx/frame.h"
-#include "wx/dialog.h"

 
 //---------------------------------------------------------------------------
 // classes
 //---------------------------------------------------------------------------
 
 
 //---------------------------------------------------------------------------
 // classes
 //---------------------------------------------------------------------------
 

-class wxStaticBox;
+class WXDLLIMPEXP_FWD_CORE wxButton;
+class WXDLLIMPEXP_FWD_CORE wxBoxSizer;
+class WXDLLIMPEXP_FWD_CORE wxSizerItem;
+class WXDLLIMPEXP_FWD_CORE wxSizer;

 
 

-class wxSizerItem;
-class wxSizer;
-class wxBoxSizer;
-class wxStaticBoxSizer;
+#ifndef wxUSE_BORDER_BY_DEFAULT
+    #ifdef __SMARTPHONE__
+        // no borders by default on limited size screen
+        #define wxUSE_BORDER_BY_DEFAULT 0
+    #else
+        #define wxUSE_BORDER_BY_DEFAULT 1
+    #endif
+#endif

 
 

-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// wxSizerFlags: flags used for an item in the sizer
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxSizerFlags
+{
+public:
+    // construct the flags object initialized with the given proportion (0 by
+    // default)
+    wxSizerFlags(int proportion = 0) : m_proportion(proportion)
+    {
+        m_flags = 0;
+        m_borderInPixels = 0;
+    }
+
+    // setters for all sizer flags, they all return the object itself so that
+    // calls to them can be chained
+
+    wxSizerFlags& Proportion(int proportion)
+    {
+        m_proportion = proportion;
+        return *this;
+    }
+
+    wxSizerFlags& Expand()
+    {
+        m_flags |= wxEXPAND;
+        return *this;
+    }
+
+    // notice that Align() replaces the current alignment flags, use specific
+    // methods below such as Top(), Left() &c if you want to set just the
+    // vertical or horizontal alignment
+    wxSizerFlags& Align(int alignment) // combination of wxAlignment values
+    {
+        m_flags &= ~wxALIGN_MASK;
+        m_flags |= alignment;
+
+        return *this;
+    }
+
+    // some shortcuts for Align()
+    wxSizerFlags& Centre() { return Align(wxALIGN_CENTRE); }
+    wxSizerFlags& Center() { return Centre(); }
+
+    wxSizerFlags& Top()
+    {
+        m_flags &= ~(wxALIGN_BOTTOM | wxALIGN_CENTRE_VERTICAL);
+        return *this;
+    }
+
+    wxSizerFlags& Left()
+    {
+        m_flags &= ~(wxALIGN_RIGHT | wxALIGN_CENTRE_HORIZONTAL);
+        return *this;
+    }
+
+    wxSizerFlags& Right()
+    {
+        m_flags = (m_flags & ~wxALIGN_CENTRE_HORIZONTAL) | wxALIGN_RIGHT;
+        return *this;
+    }
+
+    wxSizerFlags& Bottom()
+    {
+        m_flags = (m_flags & ~wxALIGN_CENTRE_VERTICAL) | wxALIGN_BOTTOM;
+        return *this;
+    }
+
+
+    // default border size used by Border() below
+    static int GetDefaultBorder()
+    {
+#if wxUSE_BORDER_BY_DEFAULT
+    #ifdef __WXGTK20__
+        // GNOME HIG says to use 6px as the base unit:
+        // http://library.gnome.org/devel/hig-book/stable/design-window.html.en
+        return 6;
+    #else
+        // FIXME: default border size shouldn't be hardcoded and at the very
+        //        least they should depend on the current font size
+        return 5;
+    #endif
+#else
+        return 0;
+#endif
+    }
+
+
+    wxSizerFlags& Border(int direction, int borderInPixels)
+    {
+        wxCHECK_MSG( !(direction & ~wxALL), *this,
+                     wxS("direction must be a combination of wxDirection ")
+                     wxS("enum values.") );
+
+        m_flags &= ~wxALL;
+        m_flags |= direction;
+
+        m_borderInPixels = borderInPixels;
+
+        return *this;
+    }
+
+    wxSizerFlags& Border(int direction = wxALL)
+    {
+#if wxUSE_BORDER_BY_DEFAULT
+        return Border(direction, GetDefaultBorder());
+#else
+        // no borders by default on limited size screen
+        wxUnusedVar(direction);
+
+        return *this;
+#endif
+    }
+
+    wxSizerFlags& DoubleBorder(int direction = wxALL)
+    {
+#if wxUSE_BORDER_BY_DEFAULT
+        return Border(direction, 2*GetDefaultBorder());
+#else
+        wxUnusedVar(direction);
+
+        return *this;
+#endif
+    }
+
+    wxSizerFlags& TripleBorder(int direction = wxALL)
+    {
+#if wxUSE_BORDER_BY_DEFAULT
+        return Border(direction, 3*GetDefaultBorder());
+#else
+        wxUnusedVar(direction);
+
+        return *this;
+#endif
+    }
+
+    wxSizerFlags& HorzBorder()
+    {
+#if wxUSE_BORDER_BY_DEFAULT
+        return Border(wxLEFT | wxRIGHT, GetDefaultBorder());
+#else
+        return *this;
+#endif
+    }
+
+    wxSizerFlags& DoubleHorzBorder()
+    {
+#if wxUSE_BORDER_BY_DEFAULT
+        return Border(wxLEFT | wxRIGHT, 2*GetDefaultBorder());
+#else
+        return *this;
+#endif
+    }
+
+    // setters for the others flags
+    wxSizerFlags& Shaped()
+    {
+        m_flags |= wxSHAPED;
+
+        return *this;
+    }
+
+    wxSizerFlags& FixedMinSize()
+    {
+        m_flags |= wxFIXED_MINSIZE;
+
+        return *this;
+    }
+
+    // makes the item ignore window's visibility status
+    wxSizerFlags& ReserveSpaceEvenIfHidden()
+    {
+        m_flags |= wxRESERVE_SPACE_EVEN_IF_HIDDEN;
+        return *this;
+    }
+
+    // accessors for wxSizer only
+    int GetProportion() const { return m_proportion; }
+    int GetFlags() const { return m_flags; }
+    int GetBorderInPixels() const { return m_borderInPixels; }
+
+private:
+    int m_proportion;
+    int m_flags;
+    int m_borderInPixels;
+};
+
+
+// ----------------------------------------------------------------------------
+// wxSizerSpacer: used by wxSizerItem to represent a spacer
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxSizerSpacer
+{
+public:
+    wxSizerSpacer(const wxSize& size) : m_size(size), m_isShown(true) { }
+
+    void SetSize(const wxSize& size) { m_size = size; }
+    const wxSize& GetSize() const { return m_size; }
+
+    void Show(bool show) { m_isShown = show; }
+    bool IsShown() const { return m_isShown; }
+
+private:
+    // the size, in pixel
+    wxSize m_size;
+
+    // is the spacer currently shown?
+    bool m_isShown;
+};
+
+// ----------------------------------------------------------------------------

 // wxSizerItem
 // wxSizerItem

-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------

 
 

-class WXDLLEXPORT wxSizerItem: public wxObject
+class WXDLLIMPEXP_CORE wxSizerItem : public wxObject

 {
 public:
 {
 public:

-  // spacer
-  wxSizerItem( int width, int height, int option, int flag, int border );
-
-  // window
-  wxSizerItem( wxWindow *window, int option, int flag, int border );
-
-  // subsizer
-  wxSizerItem( wxSizer *sizer, int option, int flag, int border );
-
-  virtual wxSize GetSize();
-  virtual wxSize CalcMin();
-  virtual void SetDimension( wxPoint pos, wxSize size );
-  
-  bool IsWindow();
-  bool IsSizer();
-  bool IsSpacer();
-  
-  wxWindow *GetWindow() const  
-    { return m_window; }
-  wxSizer *GetSizer() const    
-    { return m_sizer; }
-  int GetOption() const
-    { return m_option; }
-  int GetFlag() const
-    { return m_flag; }
-  int GetBorder() const
-    { return m_border; }
-  
+    // window
+    wxSizerItem( wxWindow *window,
+                 int proportion=0,
+                 int flag=0,
+                 int border=0,
+                 wxObject* userData=NULL );
+
+    // window with flags
+    wxSizerItem(wxWindow *window, const wxSizerFlags& flags)
+    {
+        Init(flags);
+
+        DoSetWindow(window);
+    }
+
+    // subsizer
+    wxSizerItem( wxSizer *sizer,
+                 int proportion=0,
+                 int flag=0,
+                 int border=0,
+                 wxObject* userData=NULL );
+
+    // sizer with flags
+    wxSizerItem(wxSizer *sizer, const wxSizerFlags& flags)
+    {
+        Init(flags);
+
+        DoSetSizer(sizer);
+    }
+
+    // spacer
+    wxSizerItem( int width,
+                 int height,
+                 int proportion=0,
+                 int flag=0,
+                 int border=0,
+                 wxObject* userData=NULL);
+
+    // spacer with flags
+    wxSizerItem(int width, int height, const wxSizerFlags& flags)
+    {
+        Init(flags);
+
+        DoSetSpacer(wxSize(width, height));
+    }
+
+    wxSizerItem();
+    virtual ~wxSizerItem();
+
+    virtual void DeleteWindows();
+
+    // Enable deleting the SizerItem without destroying the contained sizer.
+    void DetachSizer() { m_sizer = NULL; }
+
+    virtual wxSize GetSize() const;
+    virtual wxSize CalcMin();
+    virtual void SetDimension( const wxPoint& pos, const wxSize& size );
+
+    wxSize GetMinSize() const
+        { return m_minSize; }
+    wxSize GetMinSizeWithBorder() const;
+
+    wxSize GetMaxSize() const
+        { return IsWindow() ? m_window->GetMaxSize() : wxDefaultSize; }
+    wxSize GetMaxSizeWithBorder() const;
+
+    void SetMinSize(const wxSize& size)
+    {
+        if ( IsWindow() )
+            m_window->SetMinSize(size);
+        m_minSize = size;
+    }
+    void SetMinSize( int x, int y )
+        { SetMinSize(wxSize(x, y)); }
+    void SetInitSize( int x, int y )
+        { SetMinSize(wxSize(x, y)); }
+
+    // if either of dimensions is zero, ratio is assumed to be 1
+    // to avoid "divide by zero" errors
+    void SetRatio(int width, int height)
+        { m_ratio = (width && height) ? ((float) width / (float) height) : 1; }
+    void SetRatio(const wxSize& size)
+        { SetRatio(size.x, size.y); }
+    void SetRatio(float ratio)
+        { m_ratio = ratio; }
+    float GetRatio() const
+        { return m_ratio; }
+
+    virtual wxRect GetRect() { return m_rect; }
+
+    // set a sizer item id (different from a window id, all sizer items,
+    // including spacers, can have an associated id)
+    void SetId(int id) { m_id = id; }
+    int GetId() const { return m_id; }
+
+    bool IsWindow() const { return m_kind == Item_Window; }
+    bool IsSizer() const { return m_kind == Item_Sizer; }
+    bool IsSpacer() const { return m_kind == Item_Spacer; }
+
+#if WXWIN_COMPATIBILITY_2_6
+    // Deprecated in 2.6, use {G,S}etProportion instead.
+    wxDEPRECATED( void SetOption( int option ) );
+    wxDEPRECATED( int GetOption() const );
+#endif // WXWIN_COMPATIBILITY_2_6
+
+    void SetProportion( int proportion )
+        { m_proportion = proportion; }
+    int GetProportion() const
+        { return m_proportion; }
+    void SetFlag( int flag )
+        { m_flag = flag; }
+    int GetFlag() const
+        { return m_flag; }
+    void SetBorder( int border )
+        { m_border = border; }
+    int GetBorder() const
+        { return m_border; }
+
+    wxWindow *GetWindow() const
+        { return m_kind == Item_Window ? m_window : NULL; }
+    wxSizer *GetSizer() const
+        { return m_kind == Item_Sizer ? m_sizer : NULL; }
+    wxSize GetSpacer() const;
+
+    // This function behaves obviously for the windows and spacers but for the
+    // sizers it returns true if any sizer element is shown and only returns
+    // false if all of them are hidden. Also, it always returns true if
+    // wxRESERVE_SPACE_EVEN_IF_HIDDEN flag was used.
+    bool IsShown() const;
+
+    void Show(bool show);
+
+    void SetUserData(wxObject* userData)
+        { delete m_userData; m_userData = userData; }
+    wxObject* GetUserData() const
+        { return m_userData; }
+    wxPoint GetPosition() const
+        { return m_pos; }
+
+    // Called once the first component of an item has been decided. This is
+    // used in algorithms that depend on knowing the size in one direction
+    // before the min size in the other direction can be known.
+    // Returns true if it made use of the information (and min size was changed).
+    bool InformFirstDirection( int direction, int size, int availableOtherDir=-1 );
+
+    // these functions delete the current contents of the item if it's a sizer
+    // or a spacer but not if it is a window
+    void AssignWindow(wxWindow *window)
+    {
+        Free();
+        DoSetWindow(window);
+    }
+
+    void AssignSizer(wxSizer *sizer)
+    {
+        Free();
+        DoSetSizer(sizer);
+    }
+
+    void AssignSpacer(const wxSize& size)
+    {
+        Free();
+        DoSetSpacer(size);
+    }
+
+    void AssignSpacer(int w, int h) { AssignSpacer(wxSize(w, h)); }
+
+#if WXWIN_COMPATIBILITY_2_8
+    // these functions do not free the old sizer/spacer and so can easily
+    // provoke the memory leaks and so shouldn't be used, use Assign() instead
+    wxDEPRECATED( void SetWindow(wxWindow *window) );
+    wxDEPRECATED( void SetSizer(wxSizer *sizer) );
+    wxDEPRECATED( void SetSpacer(const wxSize& size) );
+    wxDEPRECATED( void SetSpacer(int width, int height) );
+#endif // WXWIN_COMPATIBILITY_2_8
+

 protected:
 protected:

-  wxWindow    *m_window;
-  wxSizer     *m_sizer;
-  wxSize       m_size;
-  wxSize       m_minSize;
-  int          m_option;
-  int          m_border;
-  int          m_flag;
+    // common part of several ctors
+    void Init() { m_userData = NULL; m_kind = Item_None; }
+
+    // common part of ctors taking wxSizerFlags
+    void Init(const wxSizerFlags& flags);
+
+    // free current contents
+    void Free();
+
+    // common parts of Set/AssignXXX()
+    void DoSetWindow(wxWindow *window);
+    void DoSetSizer(wxSizer *sizer);
+    void DoSetSpacer(const wxSize& size);
+
+    // Add the border specified for this item to the given size
+    // if it's != wxDefaultSize, just return wxDefaultSize otherwise.
+    wxSize AddBorderToSize(const wxSize& size) const;
+
+    // discriminated union: depending on m_kind one of the fields is valid
+    enum
+    {
+        Item_None,
+        Item_Window,
+        Item_Sizer,
+        Item_Spacer,
+        Item_Max
+    } m_kind;
+    union
+    {
+        wxWindow      *m_window;
+        wxSizer       *m_sizer;
+        wxSizerSpacer *m_spacer;
+    };
+
+    wxPoint      m_pos;
+    wxSize       m_minSize;
+    int          m_proportion;
+    int          m_border;
+    int          m_flag;
+    int          m_id;
+
+    // on screen rectangle of this item (not including borders)
+    wxRect       m_rect;
+
+    // Aspect ratio can always be calculated from m_size,
+    // but this would cause precision loss when the window
+    // is shrunk.  It is safer to preserve the initial value.
+    float        m_ratio;
+
+    wxObject    *m_userData;
+
+private:
+    DECLARE_CLASS(wxSizerItem)
+    wxDECLARE_NO_COPY_CLASS(wxSizerItem);

 };
 
 };
 

+WX_DECLARE_EXPORTED_LIST( wxSizerItem, wxSizerItemList );
+
+

 //---------------------------------------------------------------------------
 // wxSizer
 //---------------------------------------------------------------------------
 
 //---------------------------------------------------------------------------
 // wxSizer
 //---------------------------------------------------------------------------
 

-class WXDLLEXPORT wxSizer: public wxObject
+class WXDLLIMPEXP_CORE wxSizer: public wxObject, public wxClientDataContainer

 {
 public:
 {
 public:

-   wxSizer();
-   ~wxSizer();
-   
-   virtual void Add( wxWindow *window, int option = 0, int flag = 0, int border = 0 );
-   virtual void Add( wxSizer *sizer, int option = 0, int flag = 0, int border = 0 );
-   virtual void Add( int width, int height, int option = 0, int flag = 0, int border = 0  );
-  
-   virtual void Prepend( wxWindow *window, int option = 0, int flag = 0, int border = 0 );
-   virtual void Prepend( wxSizer *sizer, int option = 0, int flag = 0, int border = 0 );
-   virtual void Prepend( int width, int height, int option = 0, int flag = 0, int border = 0  );
-   
-   virtual bool Remove( wxWindow *window );
-   virtual bool Remove( wxSizer *sizer );
-   virtual bool Remove( int pos );
-  
-   void SetDimension( int x, int y, int width, int height );
-  
-   wxSize GetSize()
-     { return m_size; }
-   wxPoint GetPosition()
-     { return m_position; }
-   wxSize GetMinSize()
-     { return CalcMin(); }
-
-   virtual void RecalcSizes() = 0;
-   virtual wxSize CalcMin() = 0;
-   
-   virtual void Layout();
-
-   void Fit( wxWindow *window );
-   void SetSizeHints( wxWindow *window );
-   
+    wxSizer() { m_containingWindow = NULL; }
+    virtual ~wxSizer();
+
+    // methods for adding elements to the sizer: there are Add/Insert/Prepend
+    // overloads for each of window/sizer/spacer/wxSizerItem
+    wxSizerItem* Add(wxWindow *window,
+                     int proportion = 0,
+                     int flag = 0,
+                     int border = 0,
+                     wxObject* userData = NULL);
+    wxSizerItem* Add(wxSizer *sizer,
+                     int proportion = 0,
+                     int flag = 0,
+                     int border = 0,
+                     wxObject* userData = NULL);
+    wxSizerItem* Add(int width,
+                     int height,
+                     int proportion = 0,
+                     int flag = 0,
+                     int border = 0,
+                     wxObject* userData = NULL);
+    wxSizerItem* Add( wxWindow *window, const wxSizerFlags& flags);
+    wxSizerItem* Add( wxSizer *sizer, const wxSizerFlags& flags);
+    wxSizerItem* Add( int width, int height, const wxSizerFlags& flags);
+    wxSizerItem* Add( wxSizerItem *item);
+
+    virtual wxSizerItem *AddSpacer(int size);
+    wxSizerItem* AddStretchSpacer(int prop = 1);
+
+    wxSizerItem* Insert(size_t index,
+                        wxWindow *window,
+                        int proportion = 0,
+                        int flag = 0,
+                        int border = 0,
+                        wxObject* userData = NULL);
+    wxSizerItem* Insert(size_t index,
+                        wxSizer *sizer,
+                        int proportion = 0,
+                        int flag = 0,
+                        int border = 0,
+                        wxObject* userData = NULL);
+    wxSizerItem* Insert(size_t index,
+                        int width,
+                        int height,
+                        int proportion = 0,
+                        int flag = 0,
+                        int border = 0,
+                        wxObject* userData = NULL);
+    wxSizerItem* Insert(size_t index,
+                        wxWindow *window,
+                        const wxSizerFlags& flags);
+    wxSizerItem* Insert(size_t index,
+                        wxSizer *sizer,
+                        const wxSizerFlags& flags);
+    wxSizerItem* Insert(size_t index,
+                        int width,
+                        int height,
+                        const wxSizerFlags& flags);
+
+    // NB: do _not_ override this function in the derived classes, this one is
+    //     virtual for compatibility reasons only to allow old code overriding
+    //     it to continue to work, override DoInsert() instead in the new code
+    virtual wxSizerItem* Insert(size_t index, wxSizerItem *item);
+
+    wxSizerItem* InsertSpacer(size_t index, int size);
+    wxSizerItem* InsertStretchSpacer(size_t index, int prop = 1);
+
+    wxSizerItem* Prepend(wxWindow *window,
+                         int proportion = 0,
+                         int flag = 0,
+                         int border = 0,
+                         wxObject* userData = NULL);
+    wxSizerItem* Prepend(wxSizer *sizer,
+                         int proportion = 0,
+                         int flag = 0,
+                         int border = 0,
+                         wxObject* userData = NULL);
+    wxSizerItem* Prepend(int width,
+                         int height,
+                         int proportion = 0,
+                         int flag = 0,
+                         int border = 0,
+                         wxObject* userData = NULL);
+    wxSizerItem* Prepend(wxWindow *window, const wxSizerFlags& flags);
+    wxSizerItem* Prepend(wxSizer *sizer, const wxSizerFlags& flags);
+    wxSizerItem* Prepend(int width, int height, const wxSizerFlags& flags);
+    wxSizerItem* Prepend(wxSizerItem *item);
+
+    wxSizerItem* PrependSpacer(int size);
+    wxSizerItem* PrependStretchSpacer(int prop = 1);
+
+    // set (or possibly unset if window is NULL) or get the window this sizer
+    // is used in
+    void SetContainingWindow(wxWindow *window);
+    wxWindow *GetContainingWindow() const { return m_containingWindow; }
+
+#if WXWIN_COMPATIBILITY_2_6
+    // Deprecated in 2.6 since historically it does not delete the window,
+    // use Detach instead.
+    wxDEPRECATED( virtual bool Remove( wxWindow *window ) );
+#endif // WXWIN_COMPATIBILITY_2_6
+
+    virtual bool Remove( wxSizer *sizer );
+    virtual bool Remove( int index );
+
+    virtual bool Detach( wxWindow *window );
+    virtual bool Detach( wxSizer *sizer );
+    virtual bool Detach( int index );
+
+    virtual bool Replace( wxWindow *oldwin, wxWindow *newwin, bool recursive = false );
+    virtual bool Replace( wxSizer *oldsz, wxSizer *newsz, bool recursive = false );
+    virtual bool Replace( size_t index, wxSizerItem *newitem );
+
+    virtual void Clear( bool delete_windows = false );
+    virtual void DeleteWindows();
+
+    // Inform sizer about the first direction that has been decided (by parent item)
+    // Returns true if it made use of the information (and recalculated min size)
+    virtual bool InformFirstDirection( int WXUNUSED(direction), int WXUNUSED(size), int WXUNUSED(availableOtherDir) )
+        { return false; }
+
+    void SetMinSize( int width, int height )
+        { DoSetMinSize( width, height ); }
+    void SetMinSize( const wxSize& size )
+        { DoSetMinSize( size.x, size.y ); }
+
+    // Searches recursively
+    bool SetItemMinSize( wxWindow *window, int width, int height )
+        { return DoSetItemMinSize( window, width, height ); }
+    bool SetItemMinSize( wxWindow *window, const wxSize& size )
+        { return DoSetItemMinSize( window, size.x, size.y ); }
+
+    // Searches recursively
+    bool SetItemMinSize( wxSizer *sizer, int width, int height )
+        { return DoSetItemMinSize( sizer, width, height ); }
+    bool SetItemMinSize( wxSizer *sizer, const wxSize& size )
+        { return DoSetItemMinSize( sizer, size.x, size.y ); }
+
+    bool SetItemMinSize( size_t index, int width, int height )
+        { return DoSetItemMinSize( index, width, height ); }
+    bool SetItemMinSize( size_t index, const wxSize& size )
+        { return DoSetItemMinSize( index, size.x, size.y ); }
+
+    wxSize GetSize() const
+        { return m_size; }
+    wxPoint GetPosition() const
+        { return m_position; }
+
+    // Calculate the minimal size or return m_minSize if bigger.
+    wxSize GetMinSize();
+
+    // These virtual functions are used by the layout algorithm: first
+    // CalcMin() is called to calculate the minimal size of the sizer and
+    // prepare for laying it out and then RecalcSizes() is called to really
+    // update all the sizer items
+    virtual wxSize CalcMin() = 0;
+    virtual void RecalcSizes() = 0;
+
+    virtual void Layout();
+
+    wxSize ComputeFittingClientSize(wxWindow *window);
+    wxSize ComputeFittingWindowSize(wxWindow *window);
+
+    wxSize Fit( wxWindow *window );
+    void FitInside( wxWindow *window );
+    void SetSizeHints( wxWindow *window );
+#if WXWIN_COMPATIBILITY_2_8
+    // This only calls FitInside() since 2.9
+    wxDEPRECATED( void SetVirtualSizeHints( wxWindow *window ) );
+#endif
+
+    wxSizerItemList& GetChildren()
+        { return m_children; }
+    const wxSizerItemList& GetChildren() const
+        { return m_children; }
+
+    void SetDimension(const wxPoint& pos, const wxSize& size)
+    {
+        m_position = pos;
+        m_size = size;
+        Layout();
+
+        // This call is required for wxWrapSizer to be able to calculate its
+        // minimal size correctly.
+        InformFirstDirection(wxHORIZONTAL, size.x, size.y);
+    }
+    void SetDimension(int x, int y, int width, int height)
+        { SetDimension(wxPoint(x, y), wxSize(width, height)); }
+
+    size_t GetItemCount() const { return m_children.GetCount(); }
+    bool IsEmpty() const { return m_children.IsEmpty(); }
+
+    wxSizerItem* GetItem( wxWindow *window, bool recursive = false );
+    wxSizerItem* GetItem( wxSizer *sizer, bool recursive = false );
+    wxSizerItem* GetItem( size_t index );
+    wxSizerItem* GetItemById( int id, bool recursive = false );
+
+    // Manage whether individual scene items are considered
+    // in the layout calculations or not.
+    bool Show( wxWindow *window, bool show = true, bool recursive = false );
+    bool Show( wxSizer *sizer, bool show = true, bool recursive = false );
+    bool Show( size_t index, bool show = true );
+
+    bool Hide( wxSizer *sizer, bool recursive = false )
+        { return Show( sizer, false, recursive ); }
+    bool Hide( wxWindow *window, bool recursive = false )
+        { return Show( window, false, recursive ); }
+    bool Hide( size_t index )
+        { return Show( index, false ); }
+
+    bool IsShown( wxWindow *window ) const;
+    bool IsShown( wxSizer *sizer ) const;
+    bool IsShown( size_t index ) const;
+
+    // Recursively call wxWindow::Show () on all sizer items.
+    virtual void ShowItems (bool show);
+
+    void Show(bool show) { ShowItems(show); }
+
+    // This is the ShowItems() counterpart and returns true if any of the sizer
+    // items are shown.
+    virtual bool AreAnyItemsShown() const;
+

 protected:
 protected:

-   wxSize  m_size;
-   wxPoint m_position;
-   wxList  m_children;
-   
-   wxSize GetMinWindowSize( wxWindow *window );
+    wxSize              m_size;
+    wxSize              m_minSize;
+    wxPoint             m_position;
+    wxSizerItemList     m_children;
+
+    // the window this sizer is used in, can be NULL
+    wxWindow *m_containingWindow;
+
+    wxSize GetMaxClientSize( wxWindow *window ) const;
+    wxSize GetMinClientSize( wxWindow *window );
+    wxSize VirtualFitSize( wxWindow *window );
+
+    virtual void DoSetMinSize( int width, int height );
+    virtual bool DoSetItemMinSize( wxWindow *window, int width, int height );
+    virtual bool DoSetItemMinSize( wxSizer *sizer, int width, int height );
+    virtual bool DoSetItemMinSize( size_t index, int width, int height );
+
+    // insert a new item into m_children at given index and return the item
+    // itself
+    virtual wxSizerItem* DoInsert(size_t index, wxSizerItem *item);
+
+private:
+    DECLARE_CLASS(wxSizer)
+};
+
+//---------------------------------------------------------------------------
+// wxGridSizer
+//---------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxGridSizer: public wxSizer
+{
+public:
+    // ctors specifying the number of columns only: number of rows will be
+    // deduced automatically depending on the number of sizer elements
+    wxGridSizer( int cols, int vgap, int hgap );
+    wxGridSizer( int cols, const wxSize& gap = wxSize(0, 0) );
+
+    // ctors specifying the number of rows and columns
+    wxGridSizer( int rows, int cols, int vgap, int hgap );
+    wxGridSizer( int rows, int cols, const wxSize& gap );
+
+    virtual void RecalcSizes();
+    virtual wxSize CalcMin();
+
+    void SetCols( int cols )
+    {
+        wxASSERT_MSG( cols >= 0, "Number of columns must be non-negative");
+        m_cols = cols;
+    }
+
+    void SetRows( int rows )
+    {
+        wxASSERT_MSG( rows >= 0, "Number of rows must be non-negative");
+        m_rows = rows;
+    }
+
+    void SetVGap( int gap )     { m_vgap = gap; }
+    void SetHGap( int gap )     { m_hgap = gap; }
+    int GetCols() const         { return m_cols; }
+    int GetRows() const         { return m_rows; }
+    int GetVGap() const         { return m_vgap; }
+    int GetHGap() const         { return m_hgap; }
+
+    int GetEffectiveColsCount() const   { return m_cols ? m_cols : CalcCols(); }
+    int GetEffectiveRowsCount() const   { return m_rows ? m_rows : CalcRows(); }
+
+    // return the number of total items and the number of columns and rows
+    // (for internal use only)
+    int CalcRowsCols(int& rows, int& cols) const;
+
+protected:
+    // the number of rows/columns in the sizer, if 0 then it is determined
+    // dynamically depending on the total number of items
+    int    m_rows;
+    int    m_cols;
+
+    // gaps between rows and columns
+    int    m_vgap;
+    int    m_hgap;
+
+    virtual wxSizerItem *DoInsert(size_t index, wxSizerItem *item);
+
+    void SetItemBounds( wxSizerItem *item, int x, int y, int w, int h );
+
+    // returns the number of columns/rows needed for the current total number
+    // of children (and the fixed number of rows/columns)
+    int CalcCols() const
+    {
+        wxCHECK_MSG
+        (
+            m_rows, 0,
+            "Can't calculate number of cols if number of rows is not specified"
+        );
+
+        return (m_children.GetCount() + m_rows - 1) / m_rows;
+    }
+
+    int CalcRows() const
+    {
+        wxCHECK_MSG
+        (
+            m_cols, 0,
+            "Can't calculate number of cols if number of rows is not specified"
+        );
+
+        return (m_children.GetCount() + m_cols - 1) / m_cols;
+    }
+
+private:
+    DECLARE_CLASS(wxGridSizer)
+};
+
+//---------------------------------------------------------------------------
+// wxFlexGridSizer
+//---------------------------------------------------------------------------
+
+// values which define the behaviour for resizing wxFlexGridSizer cells in the
+// "non-flexible" direction
+enum wxFlexSizerGrowMode
+{
+    // don't resize the cells in non-flexible direction at all
+    wxFLEX_GROWMODE_NONE,
+
+    // uniformly resize only the specified ones (default)
+    wxFLEX_GROWMODE_SPECIFIED,
+
+    // uniformly resize all cells
+    wxFLEX_GROWMODE_ALL
+};
+
+class WXDLLIMPEXP_CORE wxFlexGridSizer: public wxGridSizer
+{
+public:
+    // ctors specifying the number of columns only: number of rows will be
+    // deduced automatically depending on the number of sizer elements
+    wxFlexGridSizer( int cols, int vgap, int hgap );
+    wxFlexGridSizer( int cols, const wxSize& gap = wxSize(0, 0) );
+
+    // ctors specifying the number of rows and columns
+    wxFlexGridSizer( int rows, int cols, int vgap, int hgap );
+    wxFlexGridSizer( int rows, int cols, const wxSize& gap );
+
+    // dtor
+    virtual ~wxFlexGridSizer();
+
+    // set the rows/columns which will grow (the others will remain of the
+    // constant initial size)
+    void AddGrowableRow( size_t idx, int proportion = 0 );
+    void RemoveGrowableRow( size_t idx );
+    void AddGrowableCol( size_t idx, int proportion = 0 );
+    void RemoveGrowableCol( size_t idx );
+
+    bool IsRowGrowable( size_t idx );
+    bool IsColGrowable( size_t idx );
+
+    // the sizer cells may grow in both directions, not grow at all or only
+    // grow in one direction but not the other
+
+    // the direction may be wxVERTICAL, wxHORIZONTAL or wxBOTH (default)
+    void SetFlexibleDirection(int direction) { m_flexDirection = direction; }
+    int GetFlexibleDirection() const { return m_flexDirection; }
+
+    // note that the grow mode only applies to the direction which is not
+    // flexible
+    void SetNonFlexibleGrowMode(wxFlexSizerGrowMode mode) { m_growMode = mode; }
+    wxFlexSizerGrowMode GetNonFlexibleGrowMode() const { return m_growMode; }
+
+    // Read-only access to the row heights and col widths arrays
+    const wxArrayInt& GetRowHeights() const { return m_rowHeights; }
+    const wxArrayInt& GetColWidths() const  { return m_colWidths; }
+
+    // implementation
+    virtual void RecalcSizes();
+    virtual wxSize CalcMin();
+
+protected:
+    void AdjustForFlexDirection();
+    void AdjustForGrowables(const wxSize& sz);
+    void FindWidthsAndHeights(int nrows, int ncols);
+
+    // the heights/widths of all rows/columns
+    wxArrayInt  m_rowHeights,
+                m_colWidths;
+
+    // indices of the growable columns and rows
+    wxArrayInt  m_growableRows,
+                m_growableCols;
+
+    // proportion values of the corresponding growable rows and columns
+    wxArrayInt  m_growableRowsProportions,
+                m_growableColsProportions;
+
+    // parameters describing whether the growable cells should be resized in
+    // both directions or only one
+    int m_flexDirection;
+    wxFlexSizerGrowMode m_growMode;
+
+    // saves CalcMin result to optimize RecalcSizes
+    wxSize m_calculatedMinSize;
+
+private:
+    DECLARE_CLASS(wxFlexGridSizer)
+    wxDECLARE_NO_COPY_CLASS(wxFlexGridSizer);

 };
 
 //---------------------------------------------------------------------------
 // wxBoxSizer
 //---------------------------------------------------------------------------
 
 };
 
 //---------------------------------------------------------------------------
 // wxBoxSizer
 //---------------------------------------------------------------------------
 

-class WXDLLEXPORT wxBoxSizer: public wxSizer
+class WXDLLIMPEXP_CORE wxBoxSizer: public wxSizer

 {
 public:
 {
 public:

-   wxBoxSizer( int orient );
-   
-   void RecalcSizes();
-   wxSize CalcMin();
-   
-   int GetOrientation()
-     { return m_orient; }
-   
+    wxBoxSizer(int orient)
+    {
+        m_orient = orient;
+        m_totalProportion = 0;
+
+        wxASSERT_MSG( m_orient == wxHORIZONTAL || m_orient == wxVERTICAL,
+                      wxT("invalid value for wxBoxSizer orientation") );
+    }
+
+    virtual wxSizerItem *AddSpacer(int size);
+
+    int GetOrientation() const { return m_orient; }
+
+    bool IsVertical() const { return m_orient == wxVERTICAL; }
+
+    void SetOrientation(int orient) { m_orient = orient; }
+
+    // implementation of our resizing logic
+    virtual wxSize CalcMin();
+    virtual void RecalcSizes();
+

 protected:
 protected:

+    // helpers for our code: this returns the component of the given wxSize in
+    // the direction of the sizer and in the other direction, respectively
+    int GetSizeInMajorDir(const wxSize& sz) const
+    {
+        return m_orient == wxHORIZONTAL ? sz.x : sz.y;
+    }
+
+    int& SizeInMajorDir(wxSize& sz)
+    {
+        return m_orient == wxHORIZONTAL ? sz.x : sz.y;
+    }
+
+    int& PosInMajorDir(wxPoint& pt)
+    {
+        return m_orient == wxHORIZONTAL ? pt.x : pt.y;
+    }
+
+    int GetSizeInMinorDir(const wxSize& sz) const
+    {
+        return m_orient == wxHORIZONTAL ? sz.y : sz.x;
+    }
+
+    int& SizeInMinorDir(wxSize& sz)
+    {
+        return m_orient == wxHORIZONTAL ? sz.y : sz.x;
+    }
+
+    int& PosInMinorDir(wxPoint& pt)
+    {
+        return m_orient == wxHORIZONTAL ? pt.y : pt.x;
+    }
+
+    // another helper: creates wxSize from major and minor components
+    wxSize SizeFromMajorMinor(int major, int minor) const
+    {
+        if ( m_orient == wxHORIZONTAL )
+        {
+            return wxSize(major, minor);
+        }
+        else // wxVERTICAL
+        {
+            return wxSize(minor, major);
+        }
+    }
+
+
+    // either wxHORIZONTAL or wxVERTICAL

     int m_orient;
     int m_orient;

-    int m_stretchable;
-    int m_minWidth;
-    int m_minHeight;
-    int m_fixedWidth;
-    int m_fixedHeight;
+
+    // the sum of proportion of all of our elements
+    int m_totalProportion;
+
+    // the minimal size needed for this sizer as calculated by the last call to
+    // our CalcMin()
+    wxSize m_minSize;
+
+private:
+    DECLARE_CLASS(wxBoxSizer)

 };
 };

-  
+

 //---------------------------------------------------------------------------
 // wxStaticBoxSizer
 //---------------------------------------------------------------------------
 
 //---------------------------------------------------------------------------
 // wxStaticBoxSizer
 //---------------------------------------------------------------------------
 

-class WXDLLEXPORT wxStaticBoxSizer: public wxBoxSizer
+#if wxUSE_STATBOX
+
+class WXDLLIMPEXP_FWD_CORE wxStaticBox;
+
+class WXDLLIMPEXP_CORE wxStaticBoxSizer: public wxBoxSizer

 {
 public:
 {
 public:

-   wxStaticBoxSizer( wxStaticBox *box, int orient );
-   
-   void RecalcSizes();
-   wxSize CalcMin();
-   
-   wxStaticBox *GetStaticBox()
-     { return m_staticBox; }
-   
+    wxStaticBoxSizer(wxStaticBox *box, int orient);
+    wxStaticBoxSizer(int orient, wxWindow *win, const wxString& label = wxEmptyString);
+    virtual ~wxStaticBoxSizer();
+
+    void RecalcSizes();
+    wxSize CalcMin();
+
+    wxStaticBox *GetStaticBox() const
+        { return m_staticBox; }
+
+    // override to hide/show the static box as well
+    virtual void ShowItems (bool show);
+    virtual bool AreAnyItemsShown() const;
+
+    virtual bool Detach( wxWindow *window );
+    virtual bool Detach( wxSizer *sizer ) { return wxBoxSizer::Detach(sizer); }
+    virtual bool Detach( int index ) { return wxBoxSizer::Detach(index); }
+

 protected:
 protected:

-   wxStaticBox   *m_staticBox;
+    wxStaticBox   *m_staticBox;
+
+private:
+    DECLARE_CLASS(wxStaticBoxSizer)
+    wxDECLARE_NO_COPY_CLASS(wxStaticBoxSizer);

 };
 
 };
 

-#endif
-  // __WXSIZER_H__
+#endif // wxUSE_STATBOX
+
+//---------------------------------------------------------------------------
+// wxStdDialogButtonSizer
+//---------------------------------------------------------------------------
+
+#if wxUSE_BUTTON
+
+class WXDLLIMPEXP_CORE wxStdDialogButtonSizer: public wxBoxSizer
+{
+public:
+    // Constructor just creates a new wxBoxSizer, not much else.
+    // Box sizer orientation is automatically determined here:
+    // vertical for PDAs, horizontal for everything else?
+    wxStdDialogButtonSizer();
+
+    // Checks button ID against system IDs and sets one of the pointers below
+    // to this button. Does not do any sizer-related things here.
+    void AddButton(wxButton *button);
+
+    // Use these if no standard ID can/should be used
+    void SetAffirmativeButton( wxButton *button );
+    void SetNegativeButton( wxButton *button );
+    void SetCancelButton( wxButton *button );
+
+    // All platform-specific code here, checks which buttons exist and add
+    // them to the sizer accordingly.
+    // Note - one potential hack on Mac we could use here,
+    // if m_buttonAffirmative is wxID_SAVE then ensure wxID_SAVE
+    // is set to _("Save") and m_buttonNegative is set to _("Don't Save")
+    // I wouldn't add any other hacks like that into here,
+    // but this one I can see being useful.
+    void Realize();
+
+    wxButton *GetAffirmativeButton() const { return m_buttonAffirmative; }
+    wxButton *GetApplyButton() const { return m_buttonApply; }
+    wxButton *GetNegativeButton() const { return m_buttonNegative; }
+    wxButton *GetCancelButton() const { return m_buttonCancel; }
+    wxButton *GetHelpButton() const { return m_buttonHelp; }
+
+protected:
+    wxButton *m_buttonAffirmative;  // wxID_OK, wxID_YES, wxID_SAVE go here
+    wxButton *m_buttonApply;        // wxID_APPLY
+    wxButton *m_buttonNegative;     // wxID_NO
+    wxButton *m_buttonCancel;       // wxID_CANCEL, wxID_CLOSE
+    wxButton *m_buttonHelp;         // wxID_HELP, wxID_CONTEXT_HELP
+
+private:
+    DECLARE_CLASS(wxStdDialogButtonSizer)
+    wxDECLARE_NO_COPY_CLASS(wxStdDialogButtonSizer);
+};
+
+#endif // wxUSE_BUTTON
+
+
+// ----------------------------------------------------------------------------
+// inline functions implementation
+// ----------------------------------------------------------------------------
+
+#if WXWIN_COMPATIBILITY_2_8
+
+inline void wxSizerItem::SetWindow(wxWindow *window)
+{
+    DoSetWindow(window);
+}
+
+inline void wxSizerItem::SetSizer(wxSizer *sizer)
+{
+    DoSetSizer(sizer);
+}
+
+inline void wxSizerItem::SetSpacer(const wxSize& size)
+{
+    DoSetSpacer(size);
+}
+
+inline void wxSizerItem::SetSpacer(int width, int height)
+{
+    DoSetSpacer(wxSize(width, height));
+}
+
+#endif // WXWIN_COMPATIBILITY_2_8
+
+inline wxSizerItem*
+wxSizer::Insert(size_t index, wxSizerItem *item)
+{
+    return DoInsert(index, item);
+}
+
+
+inline wxSizerItem*
+wxSizer::Add( wxSizerItem *item )
+{
+    return Insert( m_children.GetCount(), item );
+}
+
+inline wxSizerItem*
+wxSizer::Add( wxWindow *window, int proportion, int flag, int border, wxObject* userData )
+{
+    return Add( new wxSizerItem( window, proportion, flag, border, userData ) );
+}
+
+inline wxSizerItem*
+wxSizer::Add( wxSizer *sizer, int proportion, int flag, int border, wxObject* userData )
+{
+    return Add( new wxSizerItem( sizer, proportion, flag, border, userData ) );
+}
+
+inline wxSizerItem*
+wxSizer::Add( int width, int height, int proportion, int flag, int border, wxObject* userData )
+{
+    return Add( new wxSizerItem( width, height, proportion, flag, border, userData ) );
+}
+
+inline wxSizerItem*
+wxSizer::Add( wxWindow *window, const wxSizerFlags& flags )
+{
+    return Add( new wxSizerItem(window, flags) );
+}
+
+inline wxSizerItem*
+wxSizer::Add( wxSizer *sizer, const wxSizerFlags& flags )
+{
+    return Add( new wxSizerItem(sizer, flags) );
+}
+
+inline wxSizerItem*
+wxSizer::Add( int width, int height, const wxSizerFlags& flags )
+{
+    return Add( new wxSizerItem(width, height, flags) );
+}
+
+inline wxSizerItem*
+wxSizer::AddSpacer(int size)
+{
+    return Add(size, size);
+}
+
+inline wxSizerItem*
+wxSizer::AddStretchSpacer(int prop)
+{
+    return Add(0, 0, prop);
+}
+
+inline wxSizerItem*
+wxSizer::Prepend( wxSizerItem *item )
+{
+    return Insert( 0, item );
+}
+
+inline wxSizerItem*
+wxSizer::Prepend( wxWindow *window, int proportion, int flag, int border, wxObject* userData )
+{
+    return Prepend( new wxSizerItem( window, proportion, flag, border, userData ) );
+}
+
+inline wxSizerItem*
+wxSizer::Prepend( wxSizer *sizer, int proportion, int flag, int border, wxObject* userData )
+{
+    return Prepend( new wxSizerItem( sizer, proportion, flag, border, userData ) );
+}
+
+inline wxSizerItem*
+wxSizer::Prepend( int width, int height, int proportion, int flag, int border, wxObject* userData )
+{
+    return Prepend( new wxSizerItem( width, height, proportion, flag, border, userData ) );
+}
+
+inline wxSizerItem*
+wxSizer::PrependSpacer(int size)
+{
+    return Prepend(size, size);
+}
+
+inline wxSizerItem*
+wxSizer::PrependStretchSpacer(int prop)
+{
+    return Prepend(0, 0, prop);
+}
+
+inline wxSizerItem*
+wxSizer::Prepend( wxWindow *window, const wxSizerFlags& flags )
+{
+    return Prepend( new wxSizerItem(window, flags) );
+}
+
+inline wxSizerItem*
+wxSizer::Prepend( wxSizer *sizer, const wxSizerFlags& flags )
+{
+    return Prepend( new wxSizerItem(sizer, flags) );
+}
+
+inline wxSizerItem*
+wxSizer::Prepend( int width, int height, const wxSizerFlags& flags )
+{
+    return Prepend( new wxSizerItem(width, height, flags) );
+}
+
+inline wxSizerItem*
+wxSizer::Insert( size_t index,
+                 wxWindow *window,
+                 int proportion,
+                 int flag,
+                 int border,
+                 wxObject* userData )
+{
+    return Insert( index, new wxSizerItem( window, proportion, flag, border, userData ) );
+}
+
+inline wxSizerItem*
+wxSizer::Insert( size_t index,
+                 wxSizer *sizer,
+                 int proportion,
+                 int flag,
+                 int border,
+                 wxObject* userData )
+{
+    return Insert( index, new wxSizerItem( sizer, proportion, flag, border, userData ) );
+}
+
+inline wxSizerItem*
+wxSizer::Insert( size_t index,
+                 int width,
+                 int height,
+                 int proportion,
+                 int flag,
+                 int border,
+                 wxObject* userData )
+{
+    return Insert( index, new wxSizerItem( width, height, proportion, flag, border, userData ) );
+}
+
+inline wxSizerItem*
+wxSizer::Insert( size_t index, wxWindow *window, const wxSizerFlags& flags )
+{
+    return Insert( index, new wxSizerItem(window, flags) );
+}
+
+inline wxSizerItem*
+wxSizer::Insert( size_t index, wxSizer *sizer, const wxSizerFlags& flags )
+{
+    return Insert( index, new wxSizerItem(sizer, flags) );
+}
+
+inline wxSizerItem*
+wxSizer::Insert( size_t index, int width, int height, const wxSizerFlags& flags )
+{
+    return Insert( index, new wxSizerItem(width, height, flags) );
+}
+
+inline wxSizerItem*
+wxSizer::InsertSpacer(size_t index, int size)
+{
+    return Insert(index, size, size);
+}
+
+inline wxSizerItem*
+wxSizer::InsertStretchSpacer(size_t index, int prop)
+{
+    return Insert(index, 0, 0, prop);
+}
+
+#endif // __WXSIZER_H__