+ // ... but the minimal size of spacers and windows is stored via the item
+ item->SetMinSize( width, height );
+ }
+
+ return true;
+}
+
+wxSizerItem* wxSizer::GetItem( wxWindow *window, bool recursive )
+{
+ wxASSERT_MSG( window, wxT("GetItem for NULL window") );
+
+ wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxSizerItem *item = node->GetData();
+
+ if (item->GetWindow() == window)
+ {
+ return item;
+ }
+ else if (recursive && item->IsSizer())
+ {
+ wxSizerItem *subitem = item->GetSizer()->GetItem( window, true );
+ if (subitem)
+ return subitem;
+ }
+
+ node = node->GetNext();
+ }
+
+ return NULL;
+}
+
+wxSizerItem* wxSizer::GetItem( wxSizer *sizer, bool recursive )
+{
+ wxASSERT_MSG( sizer, wxT("GetItem for NULL sizer") );
+
+ wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxSizerItem *item = node->GetData();
+
+ if (item->GetSizer() == sizer)
+ {
+ return item;
+ }
+ else if (recursive && item->IsSizer())
+ {
+ wxSizerItem *subitem = item->GetSizer()->GetItem( sizer, true );
+ if (subitem)
+ return subitem;
+ }
+
+ node = node->GetNext();
+ }
+
+ return NULL;
+}
+
+wxSizerItem* wxSizer::GetItem( size_t index )
+{
+ wxCHECK_MSG( index < m_children.GetCount(),
+ NULL,
+ wxT("GetItem index is out of range") );
+
+ return m_children.Item( index )->GetData();
+}
+
+wxSizerItem* wxSizer::GetItemById( int id, bool recursive )
+{
+ // This gets a sizer item by the id of the sizer item
+ // and NOT the id of a window if the item is a window.
+
+ wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxSizerItem *item = node->GetData();
+
+ if (item->GetId() == id)
+ {
+ return item;
+ }
+ else if (recursive && item->IsSizer())
+ {
+ wxSizerItem *subitem = item->GetSizer()->GetItemById( id, true );
+ if (subitem)
+ return subitem;
+ }
+
+ node = node->GetNext();
+ }
+
+ return NULL;
+}
+
+bool wxSizer::Show( wxWindow *window, bool show, bool recursive )
+{
+ wxSizerItem *item = GetItem( window, recursive );
+
+ if ( item )
+ {
+ item->Show( show );
+ return true;
+ }
+
+ return false;
+}
+
+bool wxSizer::Show( wxSizer *sizer, bool show, bool recursive )
+{
+ wxSizerItem *item = GetItem( sizer, recursive );
+
+ if ( item )
+ {
+ item->Show( show );
+ return true;
+ }
+
+ return false;
+}
+
+bool wxSizer::Show( size_t index, bool show)
+{
+ wxSizerItem *item = GetItem( index );
+
+ if ( item )
+ {
+ item->Show( show );
+ return true;
+ }
+
+ return false;
+}
+
+void wxSizer::ShowItems( bool show )
+{
+ wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ node->GetData()->Show( show );
+ node = node->GetNext();
+ }
+}
+
+bool wxSizer::IsShown( wxWindow *window ) const
+{
+ wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxSizerItem *item = node->GetData();
+
+ if (item->GetWindow() == window)
+ {
+ return item->IsShown();
+ }
+ node = node->GetNext();
+ }
+
+ wxFAIL_MSG( wxT("IsShown failed to find sizer item") );
+
+ return false;
+}
+
+bool wxSizer::IsShown( wxSizer *sizer ) const
+{
+ wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxSizerItem *item = node->GetData();
+
+ if (item->GetSizer() == sizer)
+ {
+ return item->IsShown();
+ }
+ node = node->GetNext();
+ }
+
+ wxFAIL_MSG( wxT("IsShown failed to find sizer item") );
+
+ return false;
+}
+
+bool wxSizer::IsShown( size_t index ) const
+{
+ wxCHECK_MSG( index < m_children.GetCount(),
+ false,
+ wxT("IsShown index is out of range") );
+
+ return m_children.Item( index )->GetData()->IsShown();
+}
+
+
+//---------------------------------------------------------------------------
+// wxGridSizer
+//---------------------------------------------------------------------------
+
+wxGridSizer::wxGridSizer( int cols, int vgap, int hgap )
+ : m_rows( cols == 0 ? 1 : 0 ),
+ m_cols( cols ),
+ m_vgap( vgap ),
+ m_hgap( hgap )
+{
+}
+
+wxGridSizer::wxGridSizer( int cols, const wxSize& gap )
+ : m_rows( cols == 0 ? 1 : 0 ),
+ m_cols( cols ),
+ m_vgap( gap.GetHeight() ),
+ m_hgap( gap.GetWidth() )
+{
+}
+
+wxGridSizer::wxGridSizer( int rows, int cols, int vgap, int hgap )
+ : m_rows( rows || cols ? rows : 1 ),
+ m_cols( cols ),
+ m_vgap( vgap ),
+ m_hgap( hgap )
+{
+}
+
+wxGridSizer::wxGridSizer( int rows, int cols, const wxSize& gap )
+ : m_rows( rows || cols ? rows : 1 ),
+ m_cols( cols ),
+ m_vgap( gap.GetHeight() ),
+ m_hgap( gap.GetWidth() )
+{
+}
+
+wxSizerItem *wxGridSizer::Insert(size_t index, wxSizerItem *item)
+{
+ // if only the number of columns or the number of rows is specified for a
+ // sizer, arbitrarily many items can be added to it but if both of them are
+ // fixed, then the sizer can't have more than that many items -- check for
+ // this here to ensure that we detect errors as soon as possible
+ if ( m_cols && m_rows )
+ {
+ const int nitems = m_children.GetCount();
+ if ( nitems == m_cols*m_rows )
+ {
+ wxFAIL_MSG(
+ wxString::Format(
+ "too many items (%d > %d*%d) in grid sizer (maybe you "
+ "should omit the number of either rows or columns?)",
+ nitems + 1, m_cols, m_rows)
+ );
+
+ // additionally, continuing to use the specified number of columns
+ // and rows is not a good idea as callers of CalcRowsCols() expect
+ // that all sizer items can fit into m_cols-/m_rows-sized arrays
+ // which is not the case if there are too many items and results in
+ // crashes, so let it compute the number of rows automatically by
+ // forgetting the (wrong) number of rows specified (this also has a
+ // nice side effect of giving only one assert even if there are
+ // many more items than allowed in this sizer)
+ m_rows = 0;
+ }
+ }
+
+ return wxSizer::Insert(index, item);
+}
+
+int wxGridSizer::CalcRowsCols(int& nrows, int& ncols) const
+{
+ const int nitems = m_children.GetCount();
+
+ ncols = GetEffectiveColsCount();
+ nrows = GetEffectiveRowsCount();
+
+ // Since Insert() checks for overpopulation, the following
+ // should only assert if the grid was shrunk via SetRows() / SetCols()
+ wxASSERT_MSG( nitems <= ncols*nrows, "logic error in wxGridSizer" );
+
+ return nitems;
+}
+
+void wxGridSizer::RecalcSizes()
+{
+ int nitems, nrows, ncols;
+ if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
+ return;
+
+ 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)
+ {
+ wxSizerItemList::compatibility_iterator node = m_children.Item( i );
+
+ wxASSERT_MSG( node, wxT("Failed to find SizerItemList node") );
+
+ SetItemBounds( node->GetData(), x, y, w, h);
+ }
+ y = y + h + m_vgap;
+ }
+ x = x + w + m_hgap;
+ }
+}
+
+wxSize wxGridSizer::CalcMin()
+{
+ int nrows, ncols;
+ if ( CalcRowsCols(nrows, ncols) == 0 )
+ return wxSize();
+
+ // Find the max width and height for any component
+ int w = 0;
+ int h = 0;
+
+ wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxSizerItem *item = node->GetData();
+ wxSize sz( item->CalcMin() );
+
+ w = wxMax( w, sz.x );
+ h = wxMax( h, sz.y );
+
+ node = node->GetNext();
+ }
+
+ // In case we have a nested sizer with a two step algo , give it
+ // a chance to adjust to that (we give it width component)
+ node = m_children.GetFirst();
+ bool didChangeMinSize = false;
+ while (node)
+ {
+ wxSizerItem *item = node->GetData();
+ didChangeMinSize |= item->InformFirstDirection( wxHORIZONTAL, w, -1 );
+
+ node = node->GetNext();
+ }
+
+ // And redo iteration in case min size changed
+ if( didChangeMinSize )
+ {
+ node = m_children.GetFirst();
+ w = h = 0;
+ while (node)
+ {
+ wxSizerItem *item = node->GetData();
+ wxSize sz( item->GetMinSizeWithBorder() );
+
+ w = wxMax( w, sz.x );
+ h = wxMax( h, sz.y );
+
+ node = node->GetNext();
+ }
+ }
+
+ 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->GetMinSizeWithBorder() );
+ int flag = item->GetFlag();
+
+ if ((flag & wxEXPAND) || (flag & wxSHAPED))
+ {
+ 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 cols, int vgap, int hgap )
+ : wxGridSizer( cols, vgap, hgap ),
+ m_flexDirection(wxBOTH),
+ m_growMode(wxFLEX_GROWMODE_SPECIFIED)
+{
+}
+
+wxFlexGridSizer::wxFlexGridSizer( int cols, const wxSize& gap )
+ : wxGridSizer( cols, gap ),
+ m_flexDirection(wxBOTH),
+ m_growMode(wxFLEX_GROWMODE_SPECIFIED)
+{
+}
+
+wxFlexGridSizer::wxFlexGridSizer( int rows, int cols, int vgap, int hgap )
+ : wxGridSizer( rows, cols, vgap, hgap ),
+ m_flexDirection(wxBOTH),
+ m_growMode(wxFLEX_GROWMODE_SPECIFIED)
+{
+}
+
+wxFlexGridSizer::wxFlexGridSizer( int rows, int cols, const wxSize& gap )
+ : wxGridSizer( rows, cols, gap ),
+ m_flexDirection(wxBOTH),
+ m_growMode(wxFLEX_GROWMODE_SPECIFIED)
+{
+}
+
+wxFlexGridSizer::~wxFlexGridSizer()
+{
+}
+
+void wxFlexGridSizer::RecalcSizes()
+{
+ int nrows, ncols;
+ if ( !CalcRowsCols(nrows, ncols) )
+ return;
+
+ const wxPoint pt(GetPosition());
+ const wxSize sz(GetSize());
+
+ AdjustForGrowables(sz);
+
+ wxSizerItemList::const_iterator i = m_children.begin();
+ const wxSizerItemList::const_iterator end = m_children.end();
+
+ int y = 0;
+ for ( int r = 0; r < nrows; r++ )
+ {
+ if ( m_rowHeights[r] == -1 )
+ {
+ // this row is entirely hidden, skip it
+ for ( int c = 0; c < ncols; c++ )
+ {
+ if ( i == end )
+ return;
+
+ ++i;
+ }
+
+ continue;
+ }
+
+ const int hrow = m_rowHeights[r];
+ int h = sz.y - y; // max remaining height, don't overflow it
+ if ( hrow < h )
+ h = hrow;
+
+ int x = 0;
+ for ( int c = 0; c < ncols && i != end; c++, ++i )
+ {
+ const int wcol = m_colWidths[c];
+
+ if ( wcol == -1 )
+ continue;
+
+ int w = sz.x - x; // max possible value, ensure we don't overflow
+ if ( wcol < w )
+ w = wcol;
+
+ SetItemBounds(*i, pt.x + x, pt.y + y, w, h);
+
+ x += wcol + m_hgap;
+ }
+
+ if ( i == end )
+ return;
+
+ y += hrow + m_vgap;
+ }
+}
+
+// helper function used in CalcMin() to sum up the sizes of non-hidden items
+static int SumArraySizes(const wxArrayInt& sizes, int gap)
+{
+ // Sum total minimum size, including gaps between rows/columns.
+ // -1 is used as a magic number meaning empty row/column.
+ int total = 0;
+
+ const size_t count = sizes.size();
+ for ( size_t n = 0; n < count; n++ )
+ {
+ if ( sizes[n] != -1 )
+ {
+ if ( total )
+ total += gap; // separate from the previous column
+
+ total += sizes[n];
+ }
+ }
+
+ return total;
+}
+
+void wxFlexGridSizer::FindWidthsAndHeights(int nrows, int ncols)
+{
+ // We have to recalculate the sizes in case the item minimum size has
+ // changed since the previous layout, or the item 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.
+ m_rowHeights.assign(nrows, -1);
+ m_colWidths.assign(ncols, -1);
+
+ // n is the index of the item in left-to-right top-to-bottom order
+ size_t n = 0;
+ for ( wxSizerItemList::iterator i = m_children.begin();
+ i != m_children.end();
+ ++i, ++n )
+ {
+ wxSizerItem * const item = *i;
+ if ( item->IsShown() )
+ {
+ // NOTE: Not doing the calculation here, this is just
+ // for finding max values.
+ const wxSize sz(item->GetMinSizeWithBorder());
projects / wxWidgets.git / blobdiff