implemented fallback for AlphaBlend() for the systems not supporting it

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

diff --git a/src/common/sizer.cpp b/src/common/sizer.cpp
index 44d9630a629bda8e9929de73ce13421edbee318c..21f311e59b65958a5fe4f494d48c0e133843c870 100644 (file)
--- a/src/common/sizer.cpp
+++ b/src/common/sizer.cpp
@@ -1,12 +1,12 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        sizer.cpp
 // Purpose:     provide new wxSizer class for layout
 /////////////////////////////////////////////////////////////////////////////
 // Name:        sizer.cpp
 // Purpose:     provide new wxSizer class for layout

-// Author:      Robert Roebling and Robin Dunn
+// Author:      Robert Roebling and Robin Dunn, contributions by
+//              Dirk Holtwick, Ron Lee

 // Modified by: Ron Lee
 // Created:
 // RCS-ID:      $Id$
 // Modified by: Ron Lee
 // Created:
 // RCS-ID:      $Id$

-// Copyright:   (c) Robin Dunn, Dirk Holtwick and Robert Roebling
-//              (c) 2003, Ron Lee
+// Copyright:   (c) Robin Dunn, Robert Roebling

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 


@@ -399,17 +399,17 @@ bool wxSizer::Remove( wxSizer *sizer )
     return false;
 }
 
     return false;
 }
 

-bool wxSizer::Remove( size_t index )
+bool wxSizer::Remove( int index )

 {
 {

-    wxCHECK_MSG( index < m_children.GetCount(),
+    wxCHECK_MSG( index >= 0 && (size_t)index < m_children.GetCount(),

                  false,
                  _T("Remove index is out of range") );
 
                  false,
                  _T("Remove index is out of range") );
 

-    wxSizerItemList::Node   *node = m_children.Item( index );
+    wxSizerItemList::Node *node = m_children.Item( index );

 
     wxCHECK_MSG( node, false, _T("Failed to find child node") );
 
 
     wxCHECK_MSG( node, false, _T("Failed to find child node") );
 

-    wxSizerItem     *item = node->GetData();
+    wxSizerItem *item = node->GetData();

 
     if( item->IsWindow() )
         item->GetWindow()->SetContainingSizer( NULL );
 
     if( item->IsWindow() )
         item->GetWindow()->SetContainingSizer( NULL );


@@ -457,17 +457,17 @@ bool wxSizer::Detach( wxWindow *window )
     return false;
 }
 
     return false;
 }
 

-bool wxSizer::Detach( size_t index )
+bool wxSizer::Detach( int index )

 {
 {

-    wxCHECK_MSG( index < m_children.GetCount(),
+    wxCHECK_MSG( index >= 0 && (size_t)index < m_children.GetCount(),

                  false,
                  _T("Detach index is out of range") );
 
                  false,
                  _T("Detach index is out of range") );
 

-    wxSizerItemList::Node   *node = m_children.Item( index );
+    wxSizerItemList::Node *node = m_children.Item( index );

 
     wxCHECK_MSG( node, false, _T("Failed to find child node") );
 
 
     wxCHECK_MSG( node, false, _T("Failed to find child node") );
 

-    wxSizerItem     *item = node->GetData();
+    wxSizerItem *item = node->GetData();

 
     if( item->IsSizer() )
         item->DetachSizer();
 
     if( item->IsSizer() )
         item->DetachSizer();


@@ -814,7 +814,7 @@ bool wxSizer::IsShown( wxWindow *window ) const
     while (node)
     {
         wxSizerItem     *item = node->GetData();
     while (node)
     {
         wxSizerItem     *item = node->GetData();

-        
+

         if (item->GetWindow() == window)
         {
             return item->IsShown();
         if (item->GetWindow() == window)
         {
             return item->IsShown();


@@ -1000,48 +1000,21 @@ void wxGridSizer::SetItemBounds( wxSizerItem *item, int x, int y, int w, int h )
 //---------------------------------------------------------------------------
 
 wxFlexGridSizer::wxFlexGridSizer( int rows, int cols, int vgap, int hgap )
 //---------------------------------------------------------------------------
 
 wxFlexGridSizer::wxFlexGridSizer( int rows, int cols, int vgap, int hgap )

-   : wxGridSizer( rows, cols, vgap, hgap )
-   , m_rowHeights( NULL )
-   , m_colWidths( NULL )
+               : wxGridSizer( rows, cols, vgap, hgap ),
+                 m_flexDirection(wxBOTH),
+                 m_growMode(wxFLEX_GROWMODE_SPECIFIED)

 {
 }
 
 wxFlexGridSizer::wxFlexGridSizer( int cols, int vgap, int hgap )
 {
 }
 
 wxFlexGridSizer::wxFlexGridSizer( int cols, int vgap, int hgap )

-   : wxGridSizer( cols, vgap, hgap )
-   , m_rowHeights( NULL )
-   , m_colWidths( NULL )
+               : wxGridSizer( cols, vgap, hgap ),
+                 m_flexDirection(wxBOTH),
+                 m_growMode(wxFLEX_GROWMODE_SPECIFIED)

 {
 }
 
 wxFlexGridSizer::~wxFlexGridSizer()
 {
 {
 }
 
 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;
-
-    int nitems, nrows, ncols;
-    if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
-    {
-        m_rowHeights =
-        m_colWidths = NULL;
-    }
-
-    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()
 }
 
 void wxFlexGridSizer::RecalcSizes()


@@ -1054,36 +1027,93 @@ void wxFlexGridSizer::RecalcSizes()
     wxSize minsz( CalcMin() );
     wxPoint pt( GetPosition() );
     int    delta;
     wxSize minsz( CalcMin() );
     wxPoint pt( GetPosition() );
     int    delta;

-    size_t idx,num;
+    size_t idx, num;

     wxArrayInt temp;
     wxArrayInt temp;

+    wxArrayInt temp_proportions;
+    int sum_proportions = 0;
+    int growable_space = 0;

 
 

-    // Transfer only those rows into temp which exist in the sizer
-    // ignoring the superflouus ones. This prevents a segfault when
-    // calling AddGrowableRow( 3 ) if the sizer only has 2 rows.
-    for (idx = 0; idx < m_growableRows.GetCount(); idx++)
-        if (m_growableRows[idx] < nrows)
-            temp.Add( m_growableRows[idx] );
-    num = temp.GetCount();
+    // what to do with the rows? by default, resize them proportionally
+    if ( (m_flexDirection & wxVERTICAL) ||
+            (m_growMode == wxFLEX_GROWMODE_SPECIFIED) )
+    {
+        // Transfer only those rows into temp which exist in the sizer
+        // ignoring the superfluous ones. This prevents a segfault when
+        // calling AddGrowableRow( 3 ) if the sizer only has 2 rows.
+        for (idx = 0; idx < m_growableRows.GetCount(); idx++)
+        {
+            if (m_growableRows[idx] < nrows)
+            {
+                temp.Add( m_growableRows[idx] );
+                temp_proportions.Add( m_growableRowsProportions[idx] );
+                sum_proportions += m_growableRowsProportions[idx];
+                growable_space += m_rowHeights[ temp[idx] ];
+            }
+        }

 
 

-    if ((num > 0) && (sz.y > minsz.y))
+        num = temp.GetCount();
+
+        if ((num > 0) && (sz.y > minsz.y))
+        {
+            for (idx = 0; idx < num; idx++)
+            {
+                delta = (sz.y - minsz.y);
+                if (sum_proportions == 0)
+                    delta = (delta/num) + m_rowHeights[ temp[idx] ];
+                else
+                    delta = ((delta+growable_space)*temp_proportions[idx])/
+                                                     sum_proportions;
+                m_rowHeights[ temp[idx] ] = delta;
+            }
+        }
+        temp.Empty();
+        temp_proportions.Empty();
+               sum_proportions = 0;
+               growable_space = 0;
+    }
+    else if ( (m_growMode == wxFLEX_GROWMODE_ALL) && (sz.y > minsz.y) )

     {
     {

-        delta = (sz.y - minsz.y) / num;
-        for (idx = 0; idx < num; idx++)
-            m_rowHeights[ temp[idx] ] += delta;
+        // rounding problem?
+        for ( int row = 0; row < nrows; ++row )
+            m_rowHeights[ row ] = sz.y / nrows;

     }
 
     }
 

-    temp.Empty();
-    // See above
-    for (idx = 0; idx < m_growableCols.GetCount(); idx++)
-        if (m_growableCols[idx] < ncols)
-            temp.Add( m_growableCols[idx] );
-    num = temp.GetCount();
+    // the same logic as above but for the columns
+    if ( (m_flexDirection & wxHORIZONTAL) ||
+            (m_growMode == wxFLEX_GROWMODE_SPECIFIED) )
+    {
+        // See above
+        for (idx = 0; idx < m_growableCols.GetCount(); idx++)
+        {
+            if (m_growableCols[idx] < ncols)
+            {
+                temp.Add( m_growableCols[idx] );
+                temp_proportions.Add( m_growableColsProportions[idx] );
+                sum_proportions += m_growableColsProportions[idx];
+                growable_space += m_colWidths[idx];
+            }
+        }
+
+        num = temp.GetCount();

 
 

-    if ((num > 0) && (sz.x > minsz.x))
+        if ((num > 0) && (sz.x > minsz.x))
+        {
+            for (idx = 0; idx < num; idx++)
+            {
+                delta = (sz.x - minsz.x);
+                if (sum_proportions == 0)
+                    delta = (delta/num) + m_colWidths[ temp[idx] ];
+               else
+                    delta = ((delta+growable_space)*temp_proportions[idx])/
+                                                     sum_proportions;
+                m_colWidths[ temp[idx] ] = delta;
+            }
+        }
+    }
+    else if ( (m_growMode == wxFLEX_GROWMODE_ALL) && (sz.x > minsz.x) )

     {
     {

-        delta = (sz.x - minsz.x) / num;
-        for (idx = 0; idx < num; idx++)
-            m_colWidths[ temp[idx] ] += delta;
+        for ( int col=0; col < ncols; ++col )
+            m_colWidths[ col ] = sz.x / ncols;

     }
 
     sz = wxSize( pt.x + sz.x, pt.y + sz.y );
     }
 
     sz = wxSize( pt.x + sz.x, pt.y + sz.y );


@@ -1114,15 +1144,29 @@ void wxFlexGridSizer::RecalcSizes()
 
 wxSize wxFlexGridSizer::CalcMin()
 {
 
 wxSize wxFlexGridSizer::CalcMin()
 {

-    int nitems, nrows, ncols;
-    if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
-        return wxSize(10,10);
+    int     nrows,
+            ncols;
+    size_t  i, s;
+
+    if ( !CalcRowsCols(nrows, ncols) )
+        return wxSize(10, 10);
+
+    // We have to clear the old sizes out if any item has wxADJUST_MINSIZE
+    // set on it.  Its probably quicker to just always do it than test for
+    // that though.  At least do it before resizing the arrays, SetCount will
+    // initialise new elements to zero.
+    for( s = m_rowHeights.GetCount(), i = 0; i < s; ++i )
+        m_rowHeights[ i ] = 0;

 
 

-    CreateArrays();
+    for( s = m_colWidths.GetCount(), i = 0; i < s; ++i )
+        m_colWidths[ i ] = 0;
+
+    m_rowHeights.SetCount(nrows);
+    m_colWidths.SetCount(ncols);

 
 

-    int                      i = 0;

     wxSizerItemList::Node   *node = m_children.GetFirst();
 
     wxSizerItemList::Node   *node = m_children.GetFirst();
 

+    i = 0;

     while (node)
     {
         wxSizerItem    *item = node->GetData();
     while (node)
     {
         wxSizerItem    *item = node->GetData();


@@ -1137,6 +1181,34 @@ wxSize wxFlexGridSizer::CalcMin()
         i++;
     }
 
         i++;
     }
 

+    // the logic above works when we resize flexibly in both directions but
+    // maybe this is not the case
+    if ( m_flexDirection != wxBOTH )
+    {
+        // select the array corresponding to the direction in which we do *not*
+        // resize flexibly
+        wxArrayInt& array = m_flexDirection == wxVERTICAL ? m_colWidths
+                                                          : m_rowHeights;
+
+        const int count = array.GetCount();
+
+        // find the largest value in this array
+        int n,
+            largest = 0;
+        for ( n = 0; n < count; ++n )
+        {
+            if ( array[n] > largest )
+                largest = array[n];
+        }
+
+        // and now fill it with the largest value
+        for ( n = 0; n < count; ++n )
+        {
+            array[n] = largest;
+        }
+    }
+
+

     int width = 0;
     for (int col = 0; col < ncols; col++)
         width += m_colWidths[ col ];
     int width = 0;
     for (int col = 0; col < ncols; col++)
         width += m_colWidths[ col ];


@@ -1149,18 +1221,20 @@ wxSize wxFlexGridSizer::CalcMin()
                    height + (nrows-1) * m_vgap);
 }
 
                    height + (nrows-1) * m_vgap);
 }
 

-void wxFlexGridSizer::AddGrowableRow( size_t idx )
+void wxFlexGridSizer::AddGrowableRow( size_t idx, int proportion )

 {
     m_growableRows.Add( idx );
 {
     m_growableRows.Add( idx );

+    m_growableRowsProportions.Add( proportion );

 }
 
 void wxFlexGridSizer::RemoveGrowableRow( size_t WXUNUSED(idx) )
 {
 }
 
 }
 
 void wxFlexGridSizer::RemoveGrowableRow( size_t WXUNUSED(idx) )
 {
 }
 

-void wxFlexGridSizer::AddGrowableCol( size_t idx )
+void wxFlexGridSizer::AddGrowableCol( size_t idx, int proportion )

 {
     m_growableCols.Add( idx );
 {
     m_growableCols.Add( idx );

+    m_growableColsProportions.Add( proportion );

 }
 
 void wxFlexGridSizer::RemoveGrowableCol( size_t WXUNUSED(idx) )
 }
 
 void wxFlexGridSizer::RemoveGrowableCol( size_t WXUNUSED(idx) )


@@ -1372,14 +1446,18 @@ static void GetStaticBoxBorders( wxStaticBox *box,
 {
     // this has to be done platform by platform as there is no way to
     // guess the thickness of a wxStaticBox border
 {
     // this has to be done platform by platform as there is no way to
     // guess the thickness of a wxStaticBox border

+#ifdef __WXCOCOA__
+    box->GetBordersForSizer(borderTop,borderOther);
+#else // __WXCOCOA__

 #ifdef __WXGTK__
     if ( box->GetLabel().IsEmpty() )
         *borderTop = 5;
     else
 #endif // __WXGTK__
 #ifdef __WXGTK__
     if ( box->GetLabel().IsEmpty() )
         *borderTop = 5;
     else
 #endif // __WXGTK__

-        *borderTop = 15;
-    (void)box;
+        *borderTop = box->GetCharHeight();
+

     *borderOther = 5;
     *borderOther = 5;

+#endif // __WXCOCOA__

 }
 
 void wxStaticBoxSizer::RecalcSizes()
 }
 
 void wxStaticBoxSizer::RecalcSizes()