/////////////////////////////////////////////////////////////////////////////
// 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: $Id$
-// Copyright: (c) Robin Dunn, Dirk Holtwick and Robert Roebling
-// (c) 2003, Ron Lee
+// Copyright: (c) Robin Dunn, Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
//---------------------------------------------------------------------------
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 )
- : wxGridSizer( cols, vgap, hgap )
- , m_rowHeights( NULL )
- , m_colWidths( NULL )
+ : wxGridSizer( cols, vgap, hgap ),
+ m_flexDirection(wxBOTH),
+ m_growMode(wxFLEX_GROWMODE_SPECIFIED)
{
}
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()
wxSize sz( GetSize() );
wxSize minsz( CalcMin() );
wxPoint pt( GetPosition() );
- int delta;
- size_t idx,num;
- wxArrayInt temp;
-
- // 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();
-
- if ((num > 0) && (sz.y > minsz.y))
+
+ // what to do with the rows? by default, resize them proportionally
+ if ( sz.y > minsz.y && ( (m_flexDirection & wxVERTICAL) || (m_growMode == wxFLEX_GROWMODE_SPECIFIED) ) )
+ {
+ int sum_proportions = 0;
+ int growable_space = 0;
+ int num = 0;
+ size_t idx;
+ for (idx = 0; idx < m_growableRows.GetCount(); idx++)
+ {
+ // Since the number of rows/columns can change as items are inserted/deleted, we need
+ // to verify at runtime that the requested growable rows/columns are still valid.
+ if (m_growableRows[idx] >= nrows)
+ continue;
+ // If all items in a row/column are hidden, that row/column will have a dimension of -1.
+ // This causes the row/column to be hidden completely.
+ if (m_rowHeights[ m_growableRows[idx] ] == -1)
+ continue;
+ sum_proportions += m_growableRowsProportions[idx];
+ growable_space += m_rowHeights[ m_growableRows[idx] ];
+ num++;
+ }
+
+ if (num > 0)
+ {
+ for (idx = 0; idx < m_growableRows.GetCount(); idx++)
+ {
+ if (m_growableRows[idx] >= nrows )
+ continue;
+ if (m_rowHeights[ m_growableRows[idx] ] == -1)
+ m_rowHeights[ m_growableRows[idx] ] = 0;
+ else
+ {
+ int delta = (sz.y - minsz.y);
+ if (sum_proportions == 0)
+ delta = (delta/num) + m_rowHeights[ m_growableRows[idx] ];
+ else
+ delta = ((delta+growable_space)*m_growableRowsProportions[idx]) / sum_proportions;
+ m_rowHeights[ m_growableRows[idx] ] = delta;
+ }
+ }
+ }
+ }
+ 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 ( sz.x > minsz.x && ( (m_flexDirection & wxHORIZONTAL) || (m_growMode == wxFLEX_GROWMODE_SPECIFIED) ) )
+ {
+ int sum_proportions = 0;
+ int growable_space = 0;
+ int num = 0;
+ size_t idx;
+ for (idx = 0; idx < m_growableCols.GetCount(); idx++)
+ {
+ // Since the number of rows/columns can change as items are inserted/deleted, we need
+ // to verify at runtime that the requested growable rows/columns are still valid.
+ if (m_growableCols[idx] >= ncols)
+ continue;
+ // If all items in a row/column are hidden, that row/column will have a dimension of -1.
+ // This causes the column to be hidden completely.
+ if (m_colWidths[ m_growableCols[idx] ] == -1)
+ continue;
+ sum_proportions += m_growableColsProportions[idx];
+ // wtb 5/12/02 bugfix - was m_ColWidths[idx]!!
+ growable_space += m_colWidths[ m_growableCols[idx] ];
+ num++;
+ }
- if ((num > 0) && (sz.x > minsz.x))
+ if (num > 0)
+ {
+ for (idx = 0; idx < m_growableCols.GetCount(); idx++)
+ {
+ if (m_growableCols[idx] >= ncols )
+ continue;
+ if (m_colWidths[ m_growableCols[idx] ] == -1)
+ m_colWidths[ m_growableCols[idx] ] = 0;
+ else
+ {
+ int delta = (sz.x - minsz.x);
+ if (sum_proportions == 0)
+ delta = (delta/num) + m_colWidths[ m_growableCols[idx] ];
+ else
+ delta = ((delta+growable_space)*m_growableColsProportions[idx])/sum_proportions;
+ m_colWidths[ m_growableCols[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 );
wxSize wxFlexGridSizer::CalcMin()
{
- int nitems, nrows, ncols;
- if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
- return wxSize(10,10);
+ int nrows,
+ ncols;
+ size_t i, s;
+
+ // Number of rows/columns can change as items are added or removed.
+ if ( !CalcRowsCols(nrows, ncols) )
+ return wxSize(10, 10);
+
+ m_rowHeights.SetCount(nrows);
+ m_colWidths.SetCount(ncols);
- CreateArrays();
+ // We have to recalcuate the sizes in case an item has wxADJUST_MINSIZE, has changed
+ // minimum size since the previous layout, or has been hidden using wxSizer::Show().
+ // If all the items in a row/column are hidden, the final dimension of the row/column
+ // will be -1, indicating that the column itself is hidden.
+ for( s = m_rowHeights.GetCount(), i = 0; i < s; ++i )
+ m_rowHeights[ i ] = -1;
+ for( s = m_colWidths.GetCount(), i = 0; i < s; ++i )
+ m_colWidths[ i ] = -1;
- int i = 0;
wxSizerItemList::Node *node = m_children.GetFirst();
+ i = 0;
while (node)
{
wxSizerItem *item = node->GetData();
- wxSize sz( item->CalcMin() );
- int row = i / ncols;
- int col = i % ncols;
+ if ( item->IsShown() )
+ {
+ wxSize sz( item->CalcMin() );
+ int row = i / ncols;
+ int col = i % ncols;
- m_rowHeights[ row ] = wxMax( sz.y, m_rowHeights[ row ] );
- m_colWidths[ col ] = wxMax( sz.x, m_colWidths[ col ] );
+ m_rowHeights[ row ] = wxMax( wxMax( 0, sz.y ), m_rowHeights[ row ] );
+ m_colWidths[ col ] = wxMax( wxMax( 0, sz.x ), m_colWidths[ col ] );
+ }
node = node->GetNext();
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;
+ }
+ }
+
+ // Sum total minimum size, including gaps between rows/columns.
+ // -1 is used as a magic number meaning empty column.
int width = 0;
for (int col = 0; col < ncols; col++)
- width += m_colWidths[ col ];
+ if ( m_colWidths[ col ] != -1 )
+ width += m_colWidths[ col ] + ( col == ncols-1 ? 0 : m_hgap );
int height = 0;
for (int row = 0; row < nrows; row++)
- height += m_rowHeights[ row ];
+ if ( m_rowHeights[ row ] != -1 )
+ height += m_rowHeights[ row ] + ( row == nrows-1 ? 0 : m_vgap );
- return wxSize( width + (ncols-1) * m_hgap,
- height + (nrows-1) * m_vgap);
+ return wxSize( width, height );
}
-void wxFlexGridSizer::AddGrowableRow( size_t idx )
+void wxFlexGridSizer::AddGrowableRow( size_t idx, int proportion )
{
m_growableRows.Add( idx );
+ m_growableRowsProportions.Add( proportion );
}
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_growableColsProportions.Add( proportion );
}
void wxFlexGridSizer::RemoveGrowableCol( size_t WXUNUSED(idx) )
{
// 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__
- *borderTop = 15;
- (void)box;
+ *borderTop = box->GetCharHeight();
+
*borderOther = 5;
+#endif // __WXCOCOA__
}
void wxStaticBoxSizer::RecalcSizes()
projects / wxWidgets.git / blobdiff