don't annoy the user by repeating the question which had been already answered (and...

[wxWidgets.git] / src / common / sizer.cpp

diff --git a/src/common/sizer.cpp b/src/common/sizer.cpp
index 5a004dd535fe6a2ff63c3bd89c3e30798e1d1654..8735020e9bcc7672e57e457de0a8fee312f04441 100644 (file)
--- a/src/common/sizer.cpp
+++ b/src/common/sizer.cpp
@@ -1,9 +1,9 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        sizer.cpp
 /////////////////////////////////////////////////////////////////////////////
 // Name:        sizer.cpp

-// Purpose:     provide wxNewSizer class for layounting
+// Purpose:     provide new wxSizer class for layout

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

-// Created:     
+// Created:

 // RCS-ID:      $Id$
 // Copyright:   (c) Robin Dunn, Dirk Holtwick and Robert Roebling
 // Licence:     wxWindows licence
 // RCS-ID:      $Id$
 // Copyright:   (c) Robin Dunn, Dirk Holtwick and Robert Roebling
 // Licence:     wxWindows licence


@@ -22,67 +22,99 @@
 
 #include "wx/sizer.h"
 #include "wx/utils.h"
 
 #include "wx/sizer.h"
 #include "wx/utils.h"

+#include "wx/statbox.h"
+#include "wx/notebook.h"

 
 //---------------------------------------------------------------------------
 
 //---------------------------------------------------------------------------

-// wxNewSizerItem
+
+IMPLEMENT_ABSTRACT_CLASS(wxSizerItem, wxObject);
+IMPLEMENT_ABSTRACT_CLASS(wxSizer, wxObject);
+IMPLEMENT_ABSTRACT_CLASS(wxGridSizer, wxSizer);
+IMPLEMENT_ABSTRACT_CLASS(wxFlexGridSizer, wxGridSizer);
+IMPLEMENT_ABSTRACT_CLASS(wxBoxSizer, wxSizer);
+IMPLEMENT_ABSTRACT_CLASS(wxStaticBoxSizer, wxBoxSizer);
+#if wxUSE_NOTEBOOK
+IMPLEMENT_ABSTRACT_CLASS(wxNotebookSizer, wxSizer);
+#endif
+
+//---------------------------------------------------------------------------
+// wxSizerItem

 //---------------------------------------------------------------------------
 
 //---------------------------------------------------------------------------
 

-wxNewSizerItem::wxNewSizerItem( int width, int height, int option, int flag, int border )
+wxSizerItem::wxSizerItem( int width, int height, int option, int flag, int border, wxObject* userData )

 {
     m_window = (wxWindow *) NULL;
 {
     m_window = (wxWindow *) NULL;

-    m_sizer = (wxNewSizer *) NULL;
+    m_sizer = (wxSizer *) NULL;

     m_option = option;
     m_border = border;
     m_flag = flag;
     m_option = option;
     m_border = border;
     m_flag = flag;

-    
+    m_userData = userData;
+

     // minimal size is the initial size
     m_minSize.x = width;
     m_minSize.y = height;
     // minimal size is the initial size
     m_minSize.x = width;
     m_minSize.y = height;

-    
+
+    SetRatio(width, height);
+

     // size is set directly
     m_size = m_minSize;
 }
 
     // size is set directly
     m_size = m_minSize;
 }
 

-wxNewSizerItem::wxNewSizerItem( wxWindow *window, int option, int flag, int border )
+wxSizerItem::wxSizerItem( wxWindow *window, int option, int flag, int border, wxObject* userData )

 {
     m_window = window;
 {
     m_window = window;

-    m_sizer = (wxNewSizer *) NULL;
+    m_sizer = (wxSizer *) NULL;

     m_option = option;
     m_border = border;
     m_flag = flag;
     m_option = option;
     m_border = border;
     m_flag = flag;

-    
+    m_userData = userData;
+

     // minimal size is the initial size
     m_minSize = window->GetSize();
     // minimal size is the initial size
     m_minSize = window->GetSize();

-    
+
+    // aspect ratio calculated from initial size
+    SetRatio(m_minSize);
+

     // size is calculated later
     // m_size = ...
 }
 
     // size is calculated later
     // m_size = ...
 }
 

-wxNewSizerItem::wxNewSizerItem( wxNewSizer *sizer, int option, int flag, int border )
+wxSizerItem::wxSizerItem( wxSizer *sizer, int option, int flag, int border, wxObject* userData )

 {
     m_window = (wxWindow *) NULL;
     m_sizer = sizer;
     m_option = option;
     m_border = border;
     m_flag = flag;
 {
     m_window = (wxWindow *) NULL;
     m_sizer = sizer;
     m_option = option;
     m_border = border;
     m_flag = flag;

-    
+    m_userData = userData;
+

     // minimal size is calculated later
     // m_minSize = ...
     // minimal size is calculated later
     // m_minSize = ...

-   
+    m_ratio = 0;
+

     // size is calculated later
     // m_size = ...
 }
 
     // size is calculated later
     // m_size = ...
 }
 

-wxSize wxNewSizerItem::GetSize()
+wxSizerItem::~wxSizerItem()
+{
+    if (m_userData)
+        delete m_userData;
+    if (m_sizer)
+        delete m_sizer;
+}
+
+
+wxSize wxSizerItem::GetSize()

 {
     wxSize ret;
 {
     wxSize ret;

-    if (IsNewSizer())
+    if (IsSizer())

         ret = m_sizer->GetSize();
     else
     if (IsWindow())
         ret = m_window->GetSize();
     else ret = m_size;
         ret = m_sizer->GetSize();
     else
     if (IsWindow())
         ret = m_window->GetSize();
     else ret = m_size;

-    
+

     if (m_flag & wxWEST)
         ret.x += m_border;
     if (m_flag & wxEAST)
     if (m_flag & wxWEST)
         ret.x += m_border;
     if (m_flag & wxEAST)


@@ -91,26 +123,39 @@ wxSize wxNewSizerItem::GetSize()
         ret.y += m_border;
     if (m_flag & wxSOUTH)
         ret.y += m_border;
         ret.y += m_border;
     if (m_flag & wxSOUTH)
         ret.y += m_border;

-    
+

     return ret;
 }
 
     return ret;
 }
 

-wxSize wxNewSizerItem::CalcMin()
+wxSize wxSizerItem::CalcMin()

 {
     wxSize ret;
 {
     wxSize ret;

-    if (IsNewSizer())
-        ret = m_sizer->CalcMin();
-/*  
-    The minimum size of a window should be the
-    initial size, as saved in m_minSize, not the
-    current size.
-    
+    if (IsSizer())
+    {
+        ret = m_sizer->GetMinSize();
+
+        // if we have to preserve aspect ratio _AND_ this is
+        // the first-time calculation, consider ret to be initial size
+        if ((m_flag & wxSHAPED) && !m_ratio)
+            SetRatio(ret);
+    }

     else
     else

-    if (IsWindow())
-        ret = m_window->GetSize();
-*/
-    else ret = m_minSize;
-    
+    {
+        if ( IsWindow() && (m_flag & wxADJUST_MINSIZE) )
+        {
+            // check if the best (minimal, in fact) window size hadn't changed
+            // by chance: this may happen for, e.g. static text if its label
+            // changed
+            wxSize size = m_window->GetBestSize();
+            if ( size.x > m_minSize.x )
+                m_minSize.x = size.x;
+            if ( size.y > m_minSize.y )
+                m_minSize.y = size.y;
+        }
+
+        ret = m_minSize;
+    }
+

     if (m_flag & wxWEST)
         ret.x += m_border;
     if (m_flag & wxEAST)
     if (m_flag & wxWEST)
         ret.x += m_border;
     if (m_flag & wxEAST)


@@ -119,12 +164,44 @@ wxSize wxNewSizerItem::CalcMin()
         ret.y += m_border;
     if (m_flag & wxSOUTH)
         ret.y += m_border;
         ret.y += m_border;
     if (m_flag & wxSOUTH)
         ret.y += m_border;

-    
+

     return ret;
 }
 
     return ret;
 }
 

-void wxNewSizerItem::SetDimension( wxPoint pos, wxSize size )
+void wxSizerItem::SetDimension( wxPoint pos, wxSize size )

 {
 {

+    if (m_flag & wxSHAPED)
+    {
+        // adjust aspect ratio
+        int rwidth = (int) (size.y * m_ratio);
+        if (rwidth > size.x)
+        {
+            // fit horizontally
+            int rheight = (int) (size.x / m_ratio);
+            // add vertical space
+            if (m_flag & wxALIGN_CENTER_VERTICAL)
+                pos.y += (size.y - rheight) / 2;
+            else if (m_flag & wxALIGN_BOTTOM)
+                pos.y += (size.y - rheight);
+            // use reduced dimensions
+            size.y =rheight;
+        }
+        else if (rwidth < size.x)
+        {
+            // add horizontal space
+            if (m_flag & wxALIGN_CENTER_HORIZONTAL)
+                pos.x += (size.x - rwidth) / 2;
+            else if (m_flag & wxALIGN_RIGHT)
+                pos.x += (size.x - rwidth);
+            size.x = rwidth;
+        }
+    }
+
+    // This is what GetPosition() returns. Since we calculate
+    // borders afterwards, GetPosition() will be the left/top
+    // corner of the surrounding border.
+    m_pos = pos;
+

     if (m_flag & wxWEST)
     {
         pos.x += m_border;
     if (m_flag & wxWEST)
     {
         pos.x += m_border;


@@ -143,111 +220,635 @@ void wxNewSizerItem::SetDimension( wxPoint pos, wxSize size )
     {
         size.y -= m_border;
     }
     {
         size.y -= m_border;
     }

-       
-    if (IsNewSizer())
+
+    if (IsSizer())

         m_sizer->SetDimension( pos.x, pos.y, size.x, size.y );
         m_sizer->SetDimension( pos.x, pos.y, size.x, size.y );

-       
+

     if (IsWindow())
     if (IsWindow())

-        m_window->SetSize( pos.x, pos.y, size.x, size.y );
+        m_window->SetSize( pos.x, pos.y, size.x, size.y, wxSIZE_ALLOW_MINUS_ONE );

 
     m_size = size;
 }
 
 
     m_size = size;
 }
 

-bool wxNewSizerItem::IsWindow()
+bool wxSizerItem::IsWindow()

 {
     return (m_window != NULL);
 }
 
 {
     return (m_window != NULL);
 }
 

-bool wxNewSizerItem::IsNewSizer()
+bool wxSizerItem::IsSizer()

 {
     return (m_sizer != NULL);
 }
 
 {
     return (m_sizer != NULL);
 }
 

-bool wxNewSizerItem::IsSpacer()
+bool wxSizerItem::IsSpacer()

 {
     return (m_window == NULL) && (m_sizer == NULL);
 }
 
 //---------------------------------------------------------------------------
 {
     return (m_window == NULL) && (m_sizer == NULL);
 }
 
 //---------------------------------------------------------------------------

-// wxNewSizer
+// wxSizer

 //---------------------------------------------------------------------------
 
 //---------------------------------------------------------------------------
 

-wxNewSizer::wxNewSizer()
+wxSizer::wxSizer()

 {
     m_children.DeleteContents( TRUE );
 {
     m_children.DeleteContents( TRUE );

+    m_minSize.x = 0;
+    m_minSize.y = 0;
+}
+
+wxSizer::~wxSizer()
+{
+}
+
+void wxSizer::Add( wxWindow *window, int option, int flag, int border, wxObject* userData )
+{
+    m_children.Append( new wxSizerItem( window, option, flag, border, userData ) );
+}
+
+void wxSizer::Add( wxSizer *sizer, int option, int flag, int border, wxObject* userData )
+{
+    m_children.Append( new wxSizerItem( sizer, option, flag, border, userData ) );
+}
+
+void wxSizer::Add( int width, int height, int option, int flag, int border, wxObject* userData )
+{
+    m_children.Append( new wxSizerItem( width, height, option, flag, border, userData ) );
+}
+
+void wxSizer::Prepend( wxWindow *window, int option, int flag, int border, wxObject* userData )
+{
+    m_children.Insert( new wxSizerItem( window, option, flag, border, userData ) );

 }
 
 }
 

-wxNewSizer::~wxNewSizer()
+void wxSizer::Prepend( wxSizer *sizer, int option, int flag, int border, wxObject* userData )

 {
 {

+    m_children.Insert( new wxSizerItem( sizer, option, flag, border, userData ) );

 }
 }

-   
-void wxNewSizer::Add( wxWindow *window, int option, int flag, int border )
+
+void wxSizer::Prepend( int width, int height, int option, int flag, int border, wxObject* userData )

 {
 {

-    m_children.Append( new wxNewSizerItem( window, option, flag, border ) );
+    m_children.Insert( new wxSizerItem( width, height, option, flag, border, userData ) );

 }
 
 }
 

-void wxNewSizer::Add( wxNewSizer *sizer, int option, int flag, int border )
+void wxSizer::Insert( int before, wxWindow *window, int option, int flag, int border, wxObject* userData )

 {
 {

-    m_children.Append( new wxNewSizerItem( sizer, option, flag, border ) );
+    m_children.Insert( before, new wxSizerItem( window, option, flag, border, userData ) );

 }
 
 }
 

-void wxNewSizer::Add( int width, int height, int option, int flag, int border )
+void wxSizer::Insert( int before, wxSizer *sizer, int option, int flag, int border, wxObject* userData )

 {
 {

-    m_children.Append( new wxNewSizerItem( width, height, option, flag, border ) );
+    m_children.Insert( before, new wxSizerItem( sizer, option, flag, border, userData ) );

 }
 
 }
 

-void wxNewSizer::Fit( wxWindow *window )
+void wxSizer::Insert( int before, int width, int height, int option, int flag, int border, wxObject* userData )

 {
 {

-    window->SetSize( GetMinWindowSize( window ) );
+    m_children.Insert( before, new wxSizerItem( width, height, option, flag, border, userData ) );

 }
 
 }
 

-void wxNewSizer::Layout()
+bool wxSizer::Remove( wxWindow *window )

 {
 {

-    m_size = CalcMin();
+    wxASSERT( window );
+
+    wxNode *node = m_children.First();
+    while (node)
+    {
+        wxSizerItem *item = (wxSizerItem*)node->Data();
+        if (item->GetWindow() == window)
+        {
+            m_children.DeleteNode( node );
+            return TRUE;
+        }
+        node = node->Next();
+    }
+
+    return FALSE;
+}
+
+bool wxSizer::Remove( wxSizer *sizer )
+{
+    wxASSERT( sizer );
+
+    wxNode *node = m_children.First();
+    while (node)
+    {
+        wxSizerItem *item = (wxSizerItem*)node->Data();
+        if (item->GetSizer() == sizer)
+        {
+            m_children.DeleteNode( node );
+            return TRUE;
+        }
+        node = node->Next();
+    }
+
+    return FALSE;
+}
+
+bool wxSizer::Remove( int pos )
+{
+    wxNode *node = m_children.Nth( pos );
+    if (!node) return FALSE;
+
+    m_children.DeleteNode( node );
+
+    return TRUE;
+}
+
+void wxSizer::Fit( wxWindow *window )
+{
+    wxSize size;
+    if (window->IsTopLevel())
+        size = FitSize( window );
+    else
+        size = GetMinWindowSize( window );
+
+    window->SetSize( size );
+}
+
+void wxSizer::Layout()
+{
+    CalcMin();

     RecalcSizes();
 }
 
     RecalcSizes();
 }
 

-void wxNewSizer::SetSizeHints( wxWindow *window )
+void wxSizer::SetSizeHints( wxWindow *window )

 {
 {

-    wxSize size( GetMinWindowSize( window ) );
+    wxSize size = FitSize( window );

     window->SetSizeHints( size.x, size.y );
 }
 
     window->SetSizeHints( size.x, size.y );
 }
 

-wxSize wxNewSizer::GetMinWindowSize( wxWindow *window )
+wxSize wxSizer::GetMaxWindowSize( wxWindow *WXUNUSED(window) )
+{
+    wxRect rect = wxGetClientDisplayRect();
+    wxSize sizeMax (rect.width,rect.height);
+
+    // Make the max size a bit smaller than the visible portion of
+    // the screen.  A window which takes the entire screen doesn't
+    // look very nice either
+    sizeMax.x *= 9;
+    sizeMax.x /= 10;
+
+    sizeMax.y *= 9;
+    sizeMax.y /= 10;
+
+    return sizeMax;
+}
+
+wxSize wxSizer::GetMinWindowSize( wxWindow *window )

 {
     wxSize minSize( GetMinSize() );
     wxSize size( window->GetSize() );
     wxSize client_size( window->GetClientSize() );
     return wxSize( minSize.x+size.x-client_size.x,
 {
     wxSize minSize( GetMinSize() );
     wxSize size( window->GetSize() );
     wxSize client_size( window->GetClientSize() );
     return wxSize( minSize.x+size.x-client_size.x,

-                   minSize.y+size.y-client_size.y ); 
+                   minSize.y+size.y-client_size.y );

 }
 
 }
 

-void wxNewSizer::SetDimension( int x, int y, int width, int height )
+// Return a window size that will fit within the screens dimensions
+wxSize wxSizer::FitSize( wxWindow *window )
+{
+    wxSize size     = GetMinWindowSize( window );
+    wxSize sizeMax  = GetMaxWindowSize( window );
+
+    if ( size.x > sizeMax.x )
+        size.x = sizeMax.x;
+    if ( size.y > sizeMax.y )
+        size.y = sizeMax.y;
+
+    return size;
+}
+
+void wxSizer::SetDimension( int x, int y, int width, int height )

 {
     m_position.x = x;
     m_position.y = y;
     m_size.x = width;
     m_size.y = height;
 {
     m_position.x = x;
     m_position.y = y;
     m_size.x = width;
     m_size.y = height;

+    CalcMin();

     RecalcSizes();
 }
 
     RecalcSizes();
 }
 

+wxSize wxSizer::GetMinSize()
+{
+    wxSize ret( CalcMin() );
+    if (ret.x < m_minSize.x) ret.x = m_minSize.x;
+    if (ret.y < m_minSize.y) ret.y = m_minSize.y;
+    return ret;
+}
+
+void wxSizer::DoSetMinSize( int width, int height )
+{
+    m_minSize.x = width;
+    m_minSize.y = height;
+}
+
+bool wxSizer::DoSetItemMinSize( wxWindow *window, int width, int height )
+{
+    wxASSERT( window );
+
+    wxNode *node = m_children.First();
+    while (node)
+    {
+        wxSizerItem *item = (wxSizerItem*)node->Data();
+        if (item->GetWindow() == window)
+        {
+            item->SetInitSize( width, height );
+            return TRUE;
+        }
+        node = node->Next();
+    }
+
+    node = m_children.First();
+    while (node)
+    {
+        wxSizerItem *item = (wxSizerItem*)node->Data();
+        if (item->GetSizer())
+        {
+            /* It's a sizer, so lets search recursively. */
+            if (item->GetSizer()->DoSetItemMinSize( window, width, height ))
+            {
+                /* A child sizer found the requested windw, exit. */
+                return TRUE;
+            }
+        }
+        node = node->Next();
+    }
+
+    return FALSE;
+}
+
+bool wxSizer::DoSetItemMinSize( wxSizer *sizer, int width, int height )
+{
+    wxASSERT( sizer );
+
+    wxNode *node = m_children.First();
+    while (node)
+    {
+        wxSizerItem *item = (wxSizerItem*)node->Data();
+        if (item->GetSizer() == sizer)
+        {
+            item->GetSizer()->DoSetMinSize( width, height );
+            return TRUE;
+        }
+        node = node->Next();
+    }
+
+    node = m_children.First();
+    while (node)
+    {
+        wxSizerItem *item = (wxSizerItem*)node->Data();
+        if (item->GetSizer())
+        {
+            /* It's a sizer, so lets search recursively. */
+            if (item->GetSizer()->DoSetItemMinSize( sizer, width, height ))
+            {
+                /* A child sizer found the requested windw, exit. */
+                return TRUE;
+            }
+        }
+        node = node->Next();
+    }
+
+    return FALSE;
+}
+
+bool wxSizer::DoSetItemMinSize( int pos, int width, int height )
+{
+    wxNode *node = m_children.Nth( pos );
+    if (!node) return FALSE;
+
+    wxSizerItem *item = (wxSizerItem*) node->Data();
+    if (item->GetSizer())
+    {
+        /* Sizers contains the minimal size in them, if not calculated ... */
+        item->GetSizer()->DoSetMinSize( width, height );
+    }
+    else
+    {
+        /* ... whereas the minimal size of spacers and windows in stored
+           in the item */
+        item->SetInitSize( width, height );
+    }
+
+    return TRUE;
+}
+

 //---------------------------------------------------------------------------
 //---------------------------------------------------------------------------

-// wxBox
+// wxGridSizer

 //---------------------------------------------------------------------------
 
 //---------------------------------------------------------------------------
 

-wxBox::wxBox( int orient )
+wxGridSizer::wxGridSizer( int rows, int cols, int vgap, int hgap )

 {
 {

-    m_orient = orient;
+    m_rows = rows;
+    m_cols = cols;
+    m_vgap = vgap;
+    m_hgap = hgap;
+}
+
+wxGridSizer::wxGridSizer( int cols, int vgap, int hgap )
+{
+    m_rows = 0;
+    m_cols = cols;
+    m_vgap = vgap;
+    m_hgap = hgap;
+}
+
+void wxGridSizer::RecalcSizes()
+{
+    if (m_children.GetCount() == 0)
+        return;
+
+    int nitems = m_children.GetCount();
+    int nrows = m_rows;
+    int ncols = m_cols;
+
+    if (ncols > 0)
+        nrows = (nitems + ncols-1) / ncols;
+    else
+        ncols = (nitems + nrows-1) / nrows;
+
+    wxSize sz( GetSize() );
+    wxPoint pt( GetPosition() );
+
+    int w = (sz.x - (ncols - 1) * m_hgap) / ncols;
+    int h = (sz.y - (nrows - 1) * m_vgap) / nrows;
+
+    int x = pt.x;
+    for (int c = 0; c < ncols; c++)
+    {
+        int y = pt.y;
+        for (int r = 0; r < nrows; r++)
+        {
+            int i = r * ncols + c;
+            if (i < nitems)
+            {
+                wxNode *node = m_children.Nth( i );
+                wxASSERT( node );
+
+                SetItemBounds( (wxSizerItem*) node->Data(), x, y, w, h);
+            }
+            y = y + h + m_vgap;
+        }
+        x = x + w + m_hgap;
+    }

 }
 
 }
 

-void wxBox::RecalcSizes()
+wxSize wxGridSizer::CalcMin()

 {
     if (m_children.GetCount() == 0)
 {
     if (m_children.GetCount() == 0)

+        return wxSize(10,10);
+
+    int nitems = m_children.GetCount();
+    int nrows = m_rows;
+    int ncols = m_cols;
+
+    if (ncols > 0)
+        nrows = (nitems + ncols-1) / ncols;
+    else
+        ncols = (nitems + nrows-1) / nrows;
+
+    /* Find the max width and height for any component */
+    int w = 0;
+    int h = 0;
+
+    wxNode *node = m_children.First();
+    while (node)
+    {
+        wxSizerItem *item = (wxSizerItem*)node->Data();
+        wxSize sz( item->CalcMin() );
+        w = wxMax( w, sz.x );
+        h = wxMax( h, sz.y );
+
+        node = node->Next();
+    }
+
+    return wxSize(ncols * w + (ncols-1) * m_hgap,
+                  nrows * h + (nrows-1) * m_vgap);
+}
+
+void wxGridSizer::SetItemBounds( wxSizerItem *item, int x, int y, int w, int h )
+{
+    wxPoint pt( x,y );
+    wxSize sz( item->CalcMin() );
+    int flag = item->GetFlag();
+
+    if ((flag & wxEXPAND) || (flag & wxSHAPED))

     {
     {

-        SetDimension( m_position.x, m_position.y, 2, 2 );
+       sz = wxSize(w, h);
+    }
+    else
+    {
+        if (flag & wxALIGN_CENTER_HORIZONTAL)
+        {
+            pt.x = x + (w - sz.x) / 2;
+        }
+        else if (flag & wxALIGN_RIGHT)
+        {
+            pt.x = x + (w - sz.x);
+        }
+
+        if (flag & wxALIGN_CENTER_VERTICAL)
+        {
+            pt.y = y + (h - sz.y) / 2;
+        }
+        else if (flag & wxALIGN_BOTTOM)
+        {
+            pt.y = y + (h - sz.y);
+        }
+    }
+
+    item->SetDimension(pt, sz);
+}
+
+//---------------------------------------------------------------------------
+// wxFlexGridSizer
+//---------------------------------------------------------------------------
+
+wxFlexGridSizer::wxFlexGridSizer( int rows, int cols, int vgap, int hgap )
+   : wxGridSizer( rows, cols, vgap, hgap )
+{
+    m_rowHeights = (int*) NULL;
+    m_colWidths = (int*) NULL;
+}
+
+wxFlexGridSizer::wxFlexGridSizer( int cols, int vgap, int hgap )
+   : wxGridSizer( cols, vgap, hgap )
+{
+    m_rowHeights = (int*) NULL;
+    m_colWidths = (int*) NULL;
+}
+
+wxFlexGridSizer::~wxFlexGridSizer()
+{
+    if (m_rowHeights)
+        delete[] m_rowHeights;
+    if (m_colWidths)
+        delete[] m_colWidths;
+}
+
+void wxFlexGridSizer::CreateArrays()
+{
+    if (m_rowHeights)
+        delete[] m_rowHeights;
+    if (m_colWidths)
+        delete[] m_colWidths;
+
+    if (m_children.GetCount() == 0)

         return;
         return;

+
+    int nitems = m_children.GetCount();
+    int nrows = m_rows;
+    int ncols = m_cols;
+
+    if (ncols > 0)
+        nrows = (nitems + ncols-1) / ncols;
+    else
+        ncols = (nitems + nrows-1) / nrows;
+
+    m_rowHeights = new int[nrows];
+    m_colWidths = new int[ncols];
+
+    for (int col = 0; col < ncols; col++)
+        m_colWidths[ col ] = 0;
+    for (int row = 0; row < nrows; row++)
+        m_rowHeights[ row ] = 0;
+}
+
+void wxFlexGridSizer::RecalcSizes()
+{
+    if (m_children.GetCount() == 0)
+        return;
+
+    int nitems = m_children.GetCount();
+    int nrows = m_rows;
+    int ncols = m_cols;
+
+    if (ncols > 0)
+        nrows = (nitems + ncols-1) / ncols;
+    else
+        ncols = (nitems + nrows-1) / nrows;
+
+    wxSize sz( GetSize() );
+    wxSize minsz( CalcMin() );
+    wxPoint pt( GetPosition() );
+    int    delta;
+    size_t idx;
+
+    if ((m_growableRows.GetCount() > 0) && (sz.y > minsz.y))
+    {
+        delta = (sz.y - minsz.y) / m_growableRows.GetCount();
+        for (idx = 0; idx < m_growableRows.GetCount(); idx++)
+            m_rowHeights[ m_growableRows[idx] ] += delta;
+    }
+
+    if ((m_growableCols.GetCount() > 0) && (sz.x > minsz.x))
+    {
+        delta = (sz.x - minsz.x) / m_growableCols.GetCount();
+        for (idx = 0; idx < m_growableCols.GetCount(); idx++)
+            m_colWidths[ m_growableCols[idx] ] += delta;

     }
     }

-    
+
+    sz = wxSize( pt.x + sz.x, pt.y + sz.y );
+
+    int x = pt.x;
+    for (int c = 0; c < ncols; c++)
+    {
+        int y = pt.y;
+        for (int r = 0; r < nrows; r++)
+        {
+            int i = r * ncols + c;
+            if (i < nitems)
+            {
+                wxNode *node = m_children.Nth( i );
+                wxASSERT( node );
+
+                int w = wxMax( 0, wxMin( m_colWidths[c], sz.x - x ) );
+                int h = wxMax( 0, wxMin( m_rowHeights[r], sz.y - y ) );
+
+                SetItemBounds( (wxSizerItem*) node->Data(), x, y, w, h);
+            }
+            y = y + m_rowHeights[r] + m_vgap;
+        }
+        x = x + m_colWidths[c] + m_hgap;
+    }
+}
+
+wxSize wxFlexGridSizer::CalcMin()
+{
+    if (m_children.GetCount() == 0)
+        return wxSize(10,10);
+
+    int nitems = m_children.GetCount();
+    int nrows = m_rows;
+    int ncols = m_cols;
+
+    if (ncols > 0)
+        nrows = (nitems + ncols-1) / ncols;
+    else
+        ncols = (nitems + nrows-1) / nrows;
+
+    CreateArrays();
+
+    int col;
+    int row;
+
+    int i = 0;
+    wxNode *node = m_children.First();
+    while (node)
+    {
+        wxSizerItem *item = (wxSizerItem*)node->Data();
+        wxSize sz( item->CalcMin() );
+        row = i / ncols;
+        col = i % ncols;
+        m_rowHeights[ row ] = wxMax( sz.y, m_rowHeights[ row ] );
+        m_colWidths[ col ] = wxMax( sz.x, m_colWidths[ col ] );
+
+        node = node->Next();
+        i++;
+    }
+
+    int width = 0;
+    for (col = 0; col < ncols; col++)
+        width += m_colWidths[ col ];
+
+    int height = 0;
+    for (row = 0; row < nrows; row++)
+        height += m_rowHeights[ row ];
+
+    return wxSize( width +  (ncols-1) * m_hgap,
+                   height + (nrows-1) * m_vgap);
+}
+
+void wxFlexGridSizer::AddGrowableRow( size_t idx )
+{
+    m_growableRows.Add( idx );
+}
+
+void wxFlexGridSizer::RemoveGrowableRow( size_t WXUNUSED(idx) )
+{
+}
+
+void wxFlexGridSizer::AddGrowableCol( size_t idx )
+{
+    m_growableCols.Add( idx );
+}
+
+void wxFlexGridSizer::RemoveGrowableCol( size_t WXUNUSED(idx) )
+{
+}
+
+//---------------------------------------------------------------------------
+// wxBoxSizer
+//---------------------------------------------------------------------------
+
+wxBoxSizer::wxBoxSizer( int orient )
+{
+    m_orient = orient;
+}
+
+void wxBoxSizer::RecalcSizes()
+{
+    if (m_children.GetCount() == 0)
+        return;
+

     int delta = 0;
     int extra = 0;
     if (m_stretchable)
     int delta = 0;
     int extra = 0;
     if (m_stretchable)


@@ -256,131 +857,281 @@ void wxBox::RecalcSizes()
         {
             delta = (m_size.x - m_fixedWidth) / m_stretchable;
             extra = (m_size.x - m_fixedWidth) % m_stretchable;
         {
             delta = (m_size.x - m_fixedWidth) / m_stretchable;
             extra = (m_size.x - m_fixedWidth) % m_stretchable;

-       }
-       else
-       {
+        }
+        else
+        {

             delta = (m_size.y - m_fixedHeight) / m_stretchable;
             extra = (m_size.y - m_fixedHeight) % m_stretchable;
             delta = (m_size.y - m_fixedHeight) / m_stretchable;
             extra = (m_size.y - m_fixedHeight) % m_stretchable;

-       }
+        }

     }
     }

-    
+

     wxPoint pt( m_position );
     wxPoint pt( m_position );

-    
+

     wxNode *node = m_children.GetFirst();
     while (node)
     {
     wxNode *node = m_children.GetFirst();
     while (node)
     {

-        wxNewSizerItem *item = (wxNewSizerItem*) node->Data();
-
-       int weight = 1;
-       if (item->GetOption())
-           weight = item->GetOption();
-       
-       wxSize size( item->CalcMin() );
-       
-       if (m_orient == wxVERTICAL)
-       {
-           long height = size.y;
-           if (item->GetOption())
-           {
-               height = (delta * weight) + extra;
-               extra = 0; // only the first item will get the remainder as extra size
-           }
-           
-           wxPoint child_pos( pt );
-           wxSize  child_size( wxSize( size.x, height) );
-           
-           if (item->GetFlag() & wxALIGN_RIGHT)
-             child_pos.x += m_size.x - size.x;
-           else if (item->GetFlag() & wxCENTER)
-             child_pos.x += (m_size.x - size.x) / 2;
-           else if (item->GetFlag() & wxEXPAND)
-             child_size.x = m_size.x;
-             
-           item->SetDimension( child_pos, child_size );
-           
-           pt.y += height;
-       }
-       else
-       {
-           long width = size.x;
-           if (item->GetOption())
-           {
-               width = (delta * weight) + extra;
-               extra = 0; // only the first item will get the remainder as extra size
-           }
-           
-           wxPoint child_pos( pt );
-           wxSize  child_size( wxSize(width, size.y) );
-           
-           if (item->GetFlag() & wxALIGN_BOTTOM)
-             child_pos.y += m_size.y - size.y;
-           else if (item->GetFlag() & wxCENTER)
-             child_pos.y += (m_size.y - size.y) / 2;
-           else if (item->GetFlag() & wxEXPAND)
-             child_size.y = m_size.y;
-             
-           item->SetDimension( child_pos, child_size );
-           
-           pt.x += width;
-       }
-
-       node = node->Next();
+        wxSizerItem *item = (wxSizerItem*) node->Data();
+
+        int weight = 1;
+        if (item->GetOption())
+            weight = item->GetOption();
+
+        wxSize size( item->CalcMin() );
+
+        if (m_orient == wxVERTICAL)
+        {
+            wxCoord height = size.y;
+            if (item->GetOption())
+            {
+                height = (delta * weight) + extra;
+                extra = 0; // only the first item will get the remainder as extra size
+            }
+
+            wxPoint child_pos( pt );
+            wxSize  child_size( wxSize( size.x, height) );
+
+            if (item->GetFlag() & (wxEXPAND | wxSHAPED))
+                child_size.x = m_size.x;
+            else if (item->GetFlag() & wxALIGN_RIGHT)
+                child_pos.x += m_size.x - size.x;
+            else if (item->GetFlag() & (wxCENTER | wxALIGN_CENTER_HORIZONTAL))
+            // XXX wxCENTER is added for backward compatibility;
+            //     wxALIGN_CENTER should be used in new code
+                child_pos.x += (m_size.x - size.x) / 2;
+
+            item->SetDimension( child_pos, child_size );
+
+            pt.y += height;
+        }
+        else
+        {
+            wxCoord width = size.x;
+            if (item->GetOption())
+            {
+                width = (delta * weight) + extra;
+                extra = 0; // only the first item will get the remainder as extra size
+            }
+
+            wxPoint child_pos( pt );
+            wxSize  child_size( wxSize(width, size.y) );
+
+            if (item->GetFlag() & (wxEXPAND | wxSHAPED))
+                child_size.y = m_size.y;
+            else if (item->GetFlag() & wxALIGN_BOTTOM)
+                child_pos.y += m_size.y - size.y;
+            else if (item->GetFlag() & (wxCENTER | wxALIGN_CENTER_VERTICAL))
+            // XXX wxCENTER is added for backward compatibility;
+            //     wxALIGN_CENTER should be used in new code
+                child_pos.y += (m_size.y - size.y) / 2;
+
+            item->SetDimension( child_pos, child_size );
+
+            pt.x += width;
+        }
+
+        node = node->Next();

     }
 }
 
     }
 }
 

-wxSize wxBox::CalcMin()
+wxSize wxBoxSizer::CalcMin()

 {
     if (m_children.GetCount() == 0)
 {
     if (m_children.GetCount() == 0)

-        return wxSize(2,2);
-    
+        return wxSize(10,10);
+

     m_stretchable = 0;
     m_minWidth = 0;
     m_minHeight = 0;
     m_fixedWidth = 0;
     m_fixedHeight = 0;
     m_stretchable = 0;
     m_minWidth = 0;
     m_minHeight = 0;
     m_fixedWidth = 0;
     m_fixedHeight = 0;

-    
+
+    // Find how long each stretch unit needs to be
+    int stretchSize = 1;

     wxNode *node = m_children.GetFirst();
     while (node)
     {
     wxNode *node = m_children.GetFirst();
     while (node)
     {

-        wxNewSizerItem *item = (wxNewSizerItem*) node->Data();
-       
-       int weight = 1;
-       if (item->GetOption())
-           weight = item->GetOption();
-       
-       wxSize size( item->CalcMin() );
-       
-       if (m_orient == wxHORIZONTAL)
-       {
-           m_minWidth += (size.x * weight);
-           m_minHeight = wxMax( m_minHeight, size.y );
-       }
-       else
-       {
-           m_minHeight += (size.y * weight);
-           m_minWidth = wxMax( m_minWidth, size.x );
-       }
-       
-       if (item->GetOption())
-       {
-           m_stretchable += weight;
-       }
-       else
-       {
-           if (m_orient == wxVERTICAL)
-           {
-               m_fixedHeight += size.y;
-               m_fixedWidth = wxMax( m_fixedWidth, size.x );
-           }
-           else
-           {
-               m_fixedWidth += size.x;
-               m_fixedHeight = wxMax( m_fixedHeight, size.y );
-           }
-       }
-       
-       node = node->Next();
+        wxSizerItem *item = (wxSizerItem*) node->Data();
+        if (item->GetOption() != 0)
+        {
+            int stretch = item->GetOption();
+            wxSize size( item->CalcMin() );
+            int sizePerStretch;
+            // Integer division rounded up is (a + b - 1) / b
+            if (m_orient == wxHORIZONTAL)
+                sizePerStretch = ( size.x + stretch - 1 ) / stretch;
+            else
+                sizePerStretch = ( size.y + stretch - 1 ) / stretch;
+            if (sizePerStretch > stretchSize)
+                stretchSize = sizePerStretch;
+        }
+        node = node->Next();

     }
     }

-       
+       // Calculate overall minimum size
+       node = m_children.GetFirst();
+    while (node)
+    {
+        wxSizerItem *item = (wxSizerItem*) node->Data();
+
+        m_stretchable += item->GetOption();
+
+        wxSize size( item->CalcMin() );
+        if (item->GetOption() != 0)
+        {
+            if (m_orient == wxHORIZONTAL)
+                size.x = stretchSize * item->GetOption();
+            else
+                size.y = stretchSize * item->GetOption();
+        }
+
+        if (m_orient == wxHORIZONTAL)
+        {
+            m_minWidth += size.x;
+            m_minHeight = wxMax( m_minHeight, size.y );
+        }
+        else
+        {
+            m_minHeight += size.y;
+            m_minWidth = wxMax( m_minWidth, size.x );
+        }
+
+        if (item->GetOption() == 0)
+        {
+            if (m_orient == wxVERTICAL)
+            {
+                m_fixedHeight += size.y;
+                m_fixedWidth = wxMax( m_fixedWidth, size.x );
+            }
+            else
+            {
+                m_fixedWidth += size.x;
+                m_fixedHeight = wxMax( m_fixedHeight, size.y );
+            }
+        }
+
+        node = node->Next();
+    }
+

     return wxSize( m_minWidth, m_minHeight );
 }
     return wxSize( m_minWidth, m_minHeight );
 }

+
+//---------------------------------------------------------------------------
+// wxStaticBoxSizer
+//---------------------------------------------------------------------------
+
+wxStaticBoxSizer::wxStaticBoxSizer( wxStaticBox *box, int orient )
+                : wxBoxSizer( orient )
+{
+    wxASSERT_MSG( box, wxT("wxStaticBoxSizer needs a static box") );
+
+    m_staticBox = box;
+}
+
+static void GetStaticBoxBorders(wxStaticBox *box,
+                                int *borderTop, int *borderOther)
+{
+    // this has to be done platform by platform as there is no way to
+    // guess the thickness of a wxStaticBox border
+#ifdef __WXGTK__
+    if ( box->GetLabel().IsEmpty() )
+        *borderTop = 5;
+    else
+#endif // __WXGTK__
+        *borderTop = 15;
+       (void)box;
+    *borderOther = 5;
+}
+
+void wxStaticBoxSizer::RecalcSizes()
+{
+    int top_border, other_border;
+    GetStaticBoxBorders(m_staticBox, &top_border, &other_border);
+
+    m_staticBox->SetSize( m_position.x, m_position.y, m_size.x, m_size.y );
+
+    wxPoint old_pos( m_position );
+    m_position.x += other_border;
+    m_position.y += top_border;
+    wxSize old_size( m_size );
+    m_size.x -= 2*other_border;
+    m_size.y -= top_border + other_border;
+
+    wxBoxSizer::RecalcSizes();
+
+    m_position = old_pos;
+    m_size = old_size;
+}
+
+wxSize wxStaticBoxSizer::CalcMin()
+{
+    int top_border, other_border;
+    GetStaticBoxBorders(m_staticBox, &top_border, &other_border);
+
+    wxSize ret( wxBoxSizer::CalcMin() );
+    ret.x += 2*other_border;
+    ret.y += other_border + top_border;
+
+    return ret;
+}
+
+//---------------------------------------------------------------------------
+// wxNotebookSizer
+//---------------------------------------------------------------------------
+
+#if wxUSE_NOTEBOOK
+
+wxNotebookSizer::wxNotebookSizer( wxNotebook *nb )
+{
+    wxASSERT_MSG( nb, wxT("wxNotebookSizer needs a notebook") );
+
+    m_notebook = nb;
+}
+
+void wxNotebookSizer::RecalcSizes()
+{
+    m_notebook->SetSize( m_position.x, m_position.y, m_size.x, m_size.y );
+}
+
+wxSize wxNotebookSizer::CalcMin()
+{
+    // This will have to be done platform by platform
+    // as there is no way to guess the thickness of
+    // the wxNotebook tabs and border.
+
+    int borderX = 5;
+    int borderY = 5;
+    if ((m_notebook->HasFlag(wxNB_RIGHT)) ||
+        (m_notebook->HasFlag(wxNB_LEFT)))
+    {
+        borderX += 90; // improvements later..
+    }
+    else
+    {
+        borderY += 40; // improvements later..
+    }
+
+    if (m_notebook->GetChildren().GetCount() == 0)
+        return wxSize(borderX + 10, borderY + 10);
+
+    int maxX = 0;
+    int maxY = 0;
+
+    wxWindowList::Node *node = m_notebook->GetChildren().GetFirst();
+    while (node)
+    {
+        wxWindow *item = node->GetData();
+        wxSizer *itemsizer = item->GetSizer();
+
+        if (itemsizer)
+        {
+            wxSize subsize( itemsizer->CalcMin() );
+
+            if (subsize.x > maxX) maxX = subsize.x;
+            if (subsize.y > maxY) maxY = subsize.y;
+        }
+
+        node = node->GetNext();
+    }
+
+    return wxSize( borderX + maxX, borderY + maxY );
+}
+
+#endif // wxUSE_NOTEBOOK