#endif // WX_PRECOMP
#include "wx/display.h"
+#include "wx/vector.h"
#include "wx/listimpl.cpp"
// window item
void wxSizerItem::DoSetWindow(wxWindow *window)
{
- wxCHECK_RET( window, _T("NULL window in wxSizerItem::SetWindow()") );
+ wxCHECK_RET( window, wxT("NULL window in wxSizerItem::SetWindow()") );
m_kind = Item_Window;
m_window = window;
case Item_Max:
default:
- wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") );
+ wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") );
}
m_kind = Item_None;
case Item_Max:
default:
- wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") );
+ wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") );
}
if (m_flag & wxWEST)
{
if( !wxIsNullDouble(m_ratio) )
{
- wxCHECK_MSG( (m_proportion==0), false, _T("Shaped item, non-zero proportion in wxSizerItem::InformFirstDirection()") );
+ wxCHECK_MSG( (m_proportion==0), false, wxT("Shaped item, non-zero proportion in wxSizerItem::InformFirstDirection()") );
if( direction==wxHORIZONTAL && !wxIsNullDouble(m_ratio) )
{
// Clip size so that we don't take too much
switch ( m_kind )
{
case Item_None:
- wxFAIL_MSG( _T("can't set size of uninitialized sizer item") );
+ wxFAIL_MSG( wxT("can't set size of uninitialized sizer item") );
break;
case Item_Window:
case Item_Max:
default:
- wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") );
+ wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") );
}
}
case Item_Max:
default:
- wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") );
+ wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") );
}
}
switch ( m_kind )
{
case Item_None:
- wxFAIL_MSG( _T("can't show uninitialized sizer item") );
+ wxFAIL_MSG( wxT("can't show uninitialized sizer item") );
break;
case Item_Window:
case Item_Max:
default:
- wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") );
+ wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") );
}
}
return m_window->IsShown();
case Item_Sizer:
+ {
// arbitrarily decide that if at least one of our elements is
// shown, so are we (this arbitrariness is the reason for
// deprecating this function)
+ for ( wxSizerItemList::compatibility_iterator
+ node = m_sizer->GetChildren().GetFirst();
+ node;
+ node = node->GetNext() )
{
- // Some apps (such as dialog editors) depend on an empty sizer still
- // being laid out correctly and reporting the correct size and position.
- if (m_sizer->GetChildren().GetCount() == 0)
+ if ( node->GetData()->IsShown() )
return true;
-
- for ( wxSizerItemList::compatibility_iterator
- node = m_sizer->GetChildren().GetFirst();
- node;
- node = node->GetNext() )
- {
- if ( node->GetData()->IsShown() )
- return true;
- }
}
return false;
+ }
case Item_Spacer:
return m_spacer->IsShown();
case Item_Max:
default:
- wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") );
+ wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") );
}
return false;
WX_CLEAR_LIST(wxSizerItemList, m_children);
}
-wxSizerItem* wxSizer::Insert( size_t index, wxSizerItem *item )
+wxSizerItem* wxSizer::DoInsert( size_t index, wxSizerItem *item )
{
m_children.Insert( index, item );
bool wxSizer::Remove( wxSizer *sizer )
{
- wxASSERT_MSG( sizer, _T("Removing NULL sizer") );
+ wxASSERT_MSG( sizer, wxT("Removing NULL sizer") );
wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
while (node)
{
wxCHECK_MSG( index >= 0 && (size_t)index < m_children.GetCount(),
false,
- _T("Remove index is out of range") );
+ wxT("Remove index is out of range") );
wxSizerItemList::compatibility_iterator node = m_children.Item( index );
- wxCHECK_MSG( node, false, _T("Failed to find child node") );
+ wxCHECK_MSG( node, false, wxT("Failed to find child node") );
delete node->GetData();
m_children.Erase( node );
bool wxSizer::Detach( wxSizer *sizer )
{
- wxASSERT_MSG( sizer, _T("Detaching NULL sizer") );
+ wxASSERT_MSG( sizer, wxT("Detaching NULL sizer") );
wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
while (node)
bool wxSizer::Detach( wxWindow *window )
{
- wxASSERT_MSG( window, _T("Detaching NULL window") );
+ wxASSERT_MSG( window, wxT("Detaching NULL window") );
wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
while (node)
{
wxCHECK_MSG( index >= 0 && (size_t)index < m_children.GetCount(),
false,
- _T("Detach index is out of range") );
+ wxT("Detach index is out of range") );
wxSizerItemList::compatibility_iterator node = m_children.Item( index );
- wxCHECK_MSG( node, false, _T("Failed to find child node") );
+ wxCHECK_MSG( node, false, wxT("Failed to find child node") );
wxSizerItem *item = node->GetData();
bool wxSizer::Replace( wxWindow *oldwin, wxWindow *newwin, bool recursive )
{
- wxASSERT_MSG( oldwin, _T("Replacing NULL window") );
- wxASSERT_MSG( newwin, _T("Replacing with NULL window") );
+ wxASSERT_MSG( oldwin, wxT("Replacing NULL window") );
+ wxASSERT_MSG( newwin, wxT("Replacing with NULL window") );
wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
while (node)
bool wxSizer::Replace( wxSizer *oldsz, wxSizer *newsz, bool recursive )
{
- wxASSERT_MSG( oldsz, _T("Replacing NULL sizer") );
- wxASSERT_MSG( newsz, _T("Replacing with NULL sizer") );
+ wxASSERT_MSG( oldsz, wxT("Replacing NULL sizer") );
+ wxASSERT_MSG( newsz, wxT("Replacing with NULL sizer") );
wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
while (node)
bool wxSizer::Replace( size_t old, wxSizerItem *newitem )
{
- wxCHECK_MSG( old < m_children.GetCount(), false, _T("Replace index is out of range") );
- wxASSERT_MSG( newitem, _T("Replacing with NULL item") );
+ wxCHECK_MSG( old < m_children.GetCount(), false, wxT("Replace index is out of range") );
+ wxASSERT_MSG( newitem, wxT("Replacing with NULL item") );
wxSizerItemList::compatibility_iterator node = m_children.Item( old );
- wxCHECK_MSG( node, false, _T("Failed to find child node") );
+ wxCHECK_MSG( node, false, wxT("Failed to find child node") );
wxSizerItem *item = node->GetData();
node->SetData(newitem);
bool wxSizer::DoSetItemMinSize( wxWindow *window, int width, int height )
{
- wxASSERT_MSG( window, _T("SetMinSize for NULL window") );
+ wxASSERT_MSG( window, wxT("SetMinSize for NULL window") );
// Is it our immediate child?
bool wxSizer::DoSetItemMinSize( wxSizer *sizer, int width, int height )
{
- wxASSERT_MSG( sizer, _T("SetMinSize for NULL sizer") );
+ wxASSERT_MSG( sizer, wxT("SetMinSize for NULL sizer") );
// Is it our immediate child?
{
wxSizerItemList::compatibility_iterator node = m_children.Item( index );
- wxCHECK_MSG( node, false, _T("Failed to find child node") );
+ wxCHECK_MSG( node, false, wxT("Failed to find child node") );
wxSizerItem *item = node->GetData();
wxSizerItem* wxSizer::GetItem( wxWindow *window, bool recursive )
{
- wxASSERT_MSG( window, _T("GetItem for NULL window") );
+ wxASSERT_MSG( window, wxT("GetItem for NULL window") );
wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
while (node)
wxSizerItem* wxSizer::GetItem( wxSizer *sizer, bool recursive )
{
- wxASSERT_MSG( sizer, _T("GetItem for NULL sizer") );
+ wxASSERT_MSG( sizer, wxT("GetItem for NULL sizer") );
wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
while (node)
{
wxCHECK_MSG( index < m_children.GetCount(),
NULL,
- _T("GetItem index is out of range") );
+ wxT("GetItem index is out of range") );
return m_children.Item( index )->GetData();
}
node = node->GetNext();
}
- wxFAIL_MSG( _T("IsShown failed to find sizer item") );
+ wxFAIL_MSG( wxT("IsShown failed to find sizer item") );
return false;
}
node = node->GetNext();
}
- wxFAIL_MSG( _T("IsShown failed to find sizer item") );
+ wxFAIL_MSG( wxT("IsShown failed to find sizer item") );
return false;
}
{
wxCHECK_MSG( index < m_children.GetCount(),
false,
- _T("IsShown index is out of range") );
+ 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 )
+{
+ wxASSERT(cols >= 0);
+}
+
+wxGridSizer::wxGridSizer( int cols, const wxSize& gap )
+ : m_rows( cols == 0 ? 1 : 0 ),
+ m_cols( cols ),
+ m_vgap( gap.GetHeight() ),
+ m_hgap( gap.GetWidth() )
+{
+ wxASSERT(cols >= 0);
+}
+
wxGridSizer::wxGridSizer( int rows, int cols, int vgap, int hgap )
- : m_rows( ( cols == 0 && rows == 0 ) ? 1 : rows )
- , m_cols( cols )
- , m_vgap( vgap )
- , m_hgap( hgap )
+ : m_rows( rows || cols ? rows : 1 ),
+ m_cols( cols ),
+ m_vgap( vgap ),
+ m_hgap( hgap )
{
+ wxASSERT(rows >= 0 && cols >= 0);
}
-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 rows, int cols, const wxSize& gap )
+ : m_rows( rows || cols ? rows : 1 ),
+ m_cols( cols ),
+ m_vgap( gap.GetHeight() ),
+ m_hgap( gap.GetWidth() )
{
+ wxASSERT(rows >= 0 && cols >= 0);
}
-int wxGridSizer::CalcRowsCols(int& nrows, int& ncols) const
+wxSizerItem *wxGridSizer::DoInsert(size_t index, wxSizerItem *item)
{
- const int nitems = m_children.GetCount();
+ // 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 )
{
- // if both rows and columns are specified by user, use the provided
- // values even if we don't have enough items but check that we don't
- // have too many of them as this is going to result in problems later
- ncols = m_cols;
- nrows = 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)
+ );
- wxASSERT_MSG( ncols*nrows >= nitems, "too many items in grid sizer" );
- }
- else if ( m_cols )
- {
- ncols = m_cols;
- nrows = (nitems + m_cols - 1) / m_cols;
- }
- else if ( m_rows )
- {
- ncols = (nitems + m_rows - 1) / m_rows;
- nrows = 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;
+ }
}
- else // 0 columns, 0 rows?
- {
- wxFAIL_MSG( _T("grid sizer must have either rows or columns fixed") );
- nrows =
- ncols = 0;
- }
+ return wxSizer::DoInsert(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;
}
{
wxSizerItemList::compatibility_iterator node = m_children.Item( i );
- wxASSERT_MSG( node, _T("Failed to find SizerItemList node") );
+ wxASSERT_MSG( node, wxT("Failed to find SizerItemList node") );
SetItemBounds( node->GetData(), x, y, w, h);
}
// 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),
{
}
-wxFlexGridSizer::wxFlexGridSizer( int cols, int vgap, int hgap )
- : wxGridSizer( cols, vgap, hgap ),
+wxFlexGridSizer::wxFlexGridSizer( int rows, int cols, const wxSize& gap )
+ : wxGridSizer( rows, cols, gap ),
m_flexDirection(wxBOTH),
m_growMode(wxFLEX_GROWMODE_SPECIFIED)
{
void wxFlexGridSizer::AdjustForGrowables(const wxSize& sz)
{
+#if wxDEBUG_LEVEL
+ // by the time this function is called, the sizer should be already fully
+ // initialized and hence the number of its columns and rows is known and we
+ // can check that all indices in m_growableCols/Rows are valid (see also
+ // comments in AddGrowableCol/Row())
+ if ( !m_rows || !m_cols )
+ {
+ if ( !m_rows )
+ {
+ int nrows = CalcRows();
+
+ for ( size_t n = 0; n < m_growableRows.size(); n++ )
+ {
+ wxASSERT_MSG( m_growableRows[n] < nrows,
+ "invalid growable row index" );
+ }
+ }
+
+ if ( !m_cols )
+ {
+ int ncols = CalcCols();
+
+ for ( size_t n = 0; n < m_growableCols.size(); n++ )
+ {
+ wxASSERT_MSG( m_growableCols[n] < ncols,
+ "invalid growable column index" );
+ }
+ }
+ }
+#endif // wxDEBUG_LEVEL
+
+
if ( (m_flexDirection & wxHORIZONTAL) || (m_growMode != wxFLEX_GROWMODE_NONE) )
{
DoAdjustForGrowables
// This gives nested objects that benefit from knowing one size
// component in advance the chance to use that.
bool didAdjustMinSize = false;
- int nrows, ncols;
- CalcRowsCols(nrows, ncols);
// Iterate over all items and inform about column width
- size_t n = 0;
+ const int ncols = GetEffectiveColsCount();
+ int col = 0;
for ( wxSizerItemList::iterator i = m_children.begin();
i != m_children.end();
- ++i, ++n )
+ ++i )
{
- const int col = n % ncols;
didAdjustMinSize |= (*i)->InformFirstDirection(wxHORIZONTAL, m_colWidths[col], sz.y - m_calculatedMinSize.y);
+ if ( ++col == ncols )
+ col = 0;
}
// Only redo if info was actually used
void wxFlexGridSizer::AddGrowableRow( size_t idx, int proportion )
{
- int nrows, ncols;
- CalcRowsCols(nrows, ncols);
- wxCHECK_RET( idx < (size_t)nrows, "invalid row index" );
-
wxASSERT_MSG( !IsRowGrowable( idx ),
"AddGrowableRow() called for growable row" );
+
+ // notice that we intentionally don't check the index validity here in (the
+ // common) case when the number of rows was not specified in the ctor -- in
+ // this case it will be computed only later, when all items are added to
+ // the sizer, and the check will be done in AdjustForGrowables()
+ wxCHECK_RET( !m_rows || idx < (size_t)m_rows, "invalid row index" );
+
m_growableRows.Add( idx );
m_growableRowsProportions.Add( proportion );
}
void wxFlexGridSizer::AddGrowableCol( size_t idx, int proportion )
{
- int nrows, ncols;
- CalcRowsCols(nrows, ncols);
- wxCHECK_RET( idx < (size_t)ncols, "invalid column index" );
-
wxASSERT_MSG( !IsColGrowable( idx ),
"AddGrowableCol() called for growable column" );
+
+ // see comment in AddGrowableRow(): although it's less common to omit the
+ // specification of the number of columns, it still can also happen
+ wxCHECK_RET( !m_cols || idx < (size_t)m_cols, "invalid column index" );
+
m_growableCols.Add( idx );
m_growableColsProportions.Add( proportion );
}
}
}
- wxFAIL_MSG( _T("column/row is already not growable") );
+ wxFAIL_MSG( wxT("column/row is already not growable") );
}
void wxFlexGridSizer::RemoveGrowableCol( size_t idx )
// wxBoxSizer
//---------------------------------------------------------------------------
+wxSizerItem *wxBoxSizer::AddSpacer(int size)
+{
+ return IsVertical() ? Add(0, size) : Add(size, 0);
+}
+
+namespace
+{
+
+/*
+ Helper of RecalcSizes(): checks if there is enough remaining space for the
+ min size of the given item and returns its min size or the entire remaining
+ space depending on which one is greater.
+
+ This function updates the remaining space parameter to account for the size
+ effectively allocated to the item.
+ */
+int
+GetMinOrRemainingSize(int orient, const wxSizerItem *item, int *remainingSpace_)
+{
+ int& remainingSpace = *remainingSpace_;
+
+ wxCoord size;
+ if ( remainingSpace > 0 )
+ {
+ const wxSize sizeMin = item->GetMinSizeWithBorder();
+ size = orient == wxHORIZONTAL ? sizeMin.x : sizeMin.y;
+
+ if ( size >= remainingSpace )
+ {
+ // truncate the item to fit in the remaining space, this is better
+ // than showing it only partially in general, even if both choices
+ // are bad -- but there is nothing else we can do
+ size = remainingSpace;
+ }
+
+ remainingSpace -= size;
+ }
+ else // no remaining space
+ {
+ // no space at all left, no need to even query the item for its min
+ // size as we can't give it to it anyhow
+ size = 0;
+ }
+
+ return size;
+}
+
+} // anonymous namespace
+
void wxBoxSizer::RecalcSizes()
{
if ( m_children.empty() )
return;
const wxCoord totalMinorSize = GetSizeInMinorDir(m_size);
+ const wxCoord totalMajorSize = GetSizeInMajorDir(m_size);
// the amount of free space which we should redistribute among the
// stretchable items (i.e. those with non zero proportion)
- int delta = GetSizeInMajorDir(m_size) - GetSizeInMajorDir(m_minSize);
+ int delta = totalMajorSize - GetSizeInMajorDir(m_minSize);
+ // declare loop variables used below:
+ wxSizerItemList::const_iterator i; // iterator in m_children list
+ unsigned n = 0; // item index in majorSizes array
- // Inform child items about the size in minor direction, that can
- // change how much free space we have in major dir and how to distribute it.
- int majorMinSum = 0;
- wxSizerItemList::const_iterator i ;
- for ( i = m_children.begin();
- i != m_children.end();
- ++i )
+
+ // First, inform item about the available size in minor direction as this
+ // can change their size in the major direction. Also compute the number of
+ // visible items and sum of their min sizes in major direction.
+
+ int minMajorSize = 0;
+ for ( i = m_children.begin(); i != m_children.end(); ++i )
{
wxSizerItem * const item = *i;
// take too much, so delta should not become negative.
delta -= deltaChange;
}
- majorMinSum += GetSizeInMajorDir(item->GetMinSizeWithBorder());
+ minMajorSize += GetSizeInMajorDir(item->GetMinSizeWithBorder());
}
- // And update our min size
- SizeInMajorDir(m_minSize) = majorMinSum;
-
- // might have a new delta now
- delta = GetSizeInMajorDir(m_size) - GetSizeInMajorDir(m_minSize);
+ // update our min size and delta which may have changed
+ SizeInMajorDir(m_minSize) = minMajorSize;
+ delta = totalMajorSize - minMajorSize;
- // the position at which we put the next child
- wxPoint pt(m_position);
+ // space and sum of proportions for the remaining items, both may change
+ // below
+ wxCoord remaining = totalMajorSize;
int totalProportion = m_totalProportion;
- for ( i = m_children.begin();
- i != m_children.end();
- ++i )
+
+ // size of the (visible) items in major direction, -1 means "not fixed yet"
+ wxVector<int> majorSizes(GetItemCount(), wxDefaultCoord);
+
+
+ // Check for the degenerated case when we don't have enough space for even
+ // the min sizes of all the items: in this case we really can't do much
+ // more than to to allocate the min size to as many of fixed size items as
+ // possible (on the assumption that variable size items such as text zones
+ // or list boxes may use scrollbars to show their content even if their
+ // size is less than min size but that fixed size items such as buttons
+ // will suffer even more if we don't give them their min size)
+ if ( totalMajorSize < minMajorSize )
{
- wxSizerItem * const item = *i;
+ // Second degenerated case pass: allocate min size to all fixed size
+ // items.
+ for ( i = m_children.begin(), n = 0; i != m_children.end(); ++i, ++n )
+ {
+ wxSizerItem * const item = *i;
- if ( !item->IsShown() )
- continue;
+ if ( !item->IsShown() )
+ continue;
- const wxSize sizeThis(item->GetMinSizeWithBorder());
+ // deal with fixed size items only during this pass
+ if ( item->GetProportion() )
+ continue;
+
+ majorSizes[n] = GetMinOrRemainingSize(m_orient, item, &remaining);
+ }
- // adjust the size in the major direction using the proportion
- wxCoord majorSize = GetSizeInMajorDir(sizeThis);
- // if there is not enough space, don't try to distribute negative space
- // among the children, this would result in overlapping windows which
- // we don't want
- if ( delta > 0 )
+ // Third degenerated case pass: allocate min size to all the remaining,
+ // i.e. non-fixed size, items.
+ for ( i = m_children.begin(), n = 0; i != m_children.end(); ++i, ++n )
{
+ wxSizerItem * const item = *i;
+
+ if ( !item->IsShown() )
+ continue;
+
+ // we've already dealt with fixed size items above
+ if ( !item->GetProportion() )
+ continue;
+
+ majorSizes[n] = GetMinOrRemainingSize(m_orient, item, &remaining);
+ }
+ }
+ else // we do have enough space to give at least min sizes to all items
+ {
+ // Second and maybe more passes in the non-degenerated case: deal with
+ // fixed size items and items whose min size is greater than what we
+ // would allocate to them taking their proportion into account. For
+ // both of them, we will just use their min size, but for the latter we
+ // also need to reexamine all the items as the items which fitted
+ // before we adjusted their size upwards might not fit any more. This
+ // does make for a quadratic algorithm but it's not obvious how to
+ // avoid it and hopefully it's not a huge problem in practice as the
+ // sizers don't have many items usually (and, of course, the algorithm
+ // still reduces into a linear one if there is enough space for all the
+ // min sizes).
+ bool nonFixedSpaceChanged = false;
+ for ( i = m_children.begin(), n = 0; ; ++i, ++n )
+ {
+ if ( nonFixedSpaceChanged )
+ {
+ i = m_children.begin();
+ n = 0;
+ nonFixedSpaceChanged = false;
+ }
+
+ // check for the end of the loop only after the check above as
+ // otherwise we wouldn't do another pass if the last child resulted
+ // in non fixed space reduction
+ if ( i == m_children.end() )
+ break;
+
+ wxSizerItem * const item = *i;
+
+ if ( !item->IsShown() )
+ continue;
+
+ // don't check the item which we had already dealt with during a
+ // previous pass (this is more than an optimization, the code
+ // wouldn't work correctly if we kept adjusting for the same item
+ // over and over again)
+ if ( majorSizes[n] != wxDefaultCoord )
+ continue;
+
+ wxCoord minMajor = GetSizeInMajorDir(item->GetMinSizeWithBorder());
+
+ // it doesn't make sense for min size to be negative but right now
+ // it's possible to create e.g. a spacer with (-1, 10) as size and
+ // people do it in their code apparently (see #11842) so ensure
+ // that we don't use this -1 as real min size as it conflicts with
+ // the meaning we use for it here and negative min sizes just don't
+ // make sense anyhow (which is why it might be a better idea to
+ // deal with them at wxSizerItem level in the future but for now
+ // this is the minimal fix for the bug)
+ if ( minMajor < 0 )
+ minMajor = 0;
+
const int propItem = item->GetProportion();
if ( propItem )
{
- const int deltaItem = (delta * propItem) / totalProportion;
+ // is the desired size of this item big enough?
+ if ( (remaining*propItem)/totalProportion >= minMajor )
+ {
+ // yes, it is, we'll determine the real size of this
+ // item later, for now just leave it as wxDefaultCoord
+ continue;
+ }
+
+ // the proportion of this item won't count, it has
+ // effectively become fixed
+ totalProportion -= propItem;
+ }
+
+ // we can already allocate space for this item
+ majorSizes[n] = minMajor;
- majorSize += deltaItem;
+ // change the amount of the space remaining to the other items,
+ // as this can result in not being able to satisfy their
+ // proportions any more we will need to redo another loop
+ // iteration
+ remaining -= minMajor;
- delta -= deltaItem;
+ nonFixedSpaceChanged = true;
+ }
+
+
+ // Last by one pass: distribute the remaining space among the non-fixed
+ // items whose size weren't fixed yet according to their proportions.
+ for ( i = m_children.begin(), n = 0; i != m_children.end(); ++i, ++n )
+ {
+ wxSizerItem * const item = *i;
+
+ if ( !item->IsShown() )
+ continue;
+
+ if ( majorSizes[n] == wxDefaultCoord )
+ {
+ const int propItem = item->GetProportion();
+ majorSizes[n] = (remaining*propItem)/totalProportion;
+
+ remaining -= majorSizes[n];
totalProportion -= propItem;
}
}
+ }
+ // the position at which we put the next child
+ wxPoint pt(m_position);
+
+
+ // Final pass: finally do position the items correctly using their sizes as
+ // determined above.
+ for ( i = m_children.begin(), n = 0; i != m_children.end(); ++i, ++n )
+ {
+ wxSizerItem * const item = *i;
+
+ if ( !item->IsShown() )
+ continue;
+
+ const int majorSize = majorSizes[n];
+
+ const wxSize sizeThis(item->GetMinSizeWithBorder());
+
// apply the alignment in the minor direction
wxPoint posChild(pt);
wxCoord minorSize = GetSizeInMinorDir(sizeThis);
const int flag = item->GetFlag();
- if ( flag & (wxEXPAND | wxSHAPED) )
+ if ( (flag & (wxEXPAND | wxSHAPED)) || (minorSize > totalMinorSize) )
{
+ // occupy all the available space if wxEXPAND was given and also if
+ // the item is too big to fit -- in this case we truncate it below
+ // its minimal size which is bad but better than not showing parts
+ // of the window at all
minorSize = totalMinorSize;
}
else if ( flag & (IsVertical() ? wxALIGN_RIGHT : wxALIGN_BOTTOM) )
}
// NB: wxCENTRE is used here only for backwards compatibility,
// wxALIGN_CENTRE should be used in new code
- else if ( flag & (wxCENTER | (IsVertical() ? wxALIGN_CENTRE_HORIZONTAL : wxALIGN_CENTRE_VERTICAL)))
+ else if ( flag & (wxCENTER | (IsVertical() ? wxALIGN_CENTRE_HORIZONTAL
+ : wxALIGN_CENTRE_VERTICAL)) )
{
PosInMinorDir(posChild) += (totalMinorSize - minorSize) / 2;
}
m_totalProportion = 0;
m_minSize = wxSize(0, 0);
- // calculate the minimal sizes for all items and count sum of proportions
+ // The minimal size for the sizer should be big enough to allocate its
+ // element at least its minimal size but also, and this is the non trivial
+ // part, to respect the children proportion. To satisfy the latter
+ // condition we must find the greatest min-size-to-proportion ratio for all
+ // elements with non-zero proportion.
+ float maxMinSizeToProp = 0.;
for ( wxSizerItemList::const_iterator i = m_children.begin();
i != m_children.end();
++i )
continue;
const wxSize sizeMinThis = item->CalcMin();
- SizeInMajorDir(m_minSize) += GetSizeInMajorDir(sizeMinThis);
+ if ( const int propThis = item->GetProportion() )
+ {
+ float minSizeToProp = GetSizeInMajorDir(sizeMinThis);
+ minSizeToProp /= propThis;
+
+ if ( minSizeToProp > maxMinSizeToProp )
+ maxMinSizeToProp = minSizeToProp;
+
+ m_totalProportion += item->GetProportion();
+ }
+ else // fixed size item
+ {
+ // Just account for its size directly
+ SizeInMajorDir(m_minSize) += GetSizeInMajorDir(sizeMinThis);
+ }
+
+ // In the transversal direction we just need to find the maximum.
if ( GetSizeInMinorDir(sizeMinThis) > GetSizeInMinorDir(m_minSize) )
SizeInMinorDir(m_minSize) = GetSizeInMinorDir(sizeMinThis);
-
- m_totalProportion += item->GetProportion();
}
+ // Using the max ratio ensures that the min size is big enough for all
+ // items to have their min size and satisfy the proportions among them.
+ SizeInMajorDir(m_minSize) += (int)(maxMinSizeToProp*m_totalProportion);
+
return m_minSize;
}
delete m_staticBox;
}
-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
- box->GetBordersForSizer(borderTop, borderOther);
-}
-
void wxStaticBoxSizer::RecalcSizes()
{
int top_border, other_border;
- GetStaticBoxBorders(m_staticBox, &top_border, &other_border);
+ m_staticBox->GetBordersForSizer(&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;
+ wxPoint old_pos( m_position );
+ if (m_staticBox->GetChildren().GetCount() > 0)
+ {
+#if defined( __WXGTK20__ )
+ // if the wxStaticBox has created a wxPizza to contain its children
+ // (see wxStaticBox::AddChild) then we need to place the items it contains
+ // in the wxBoxSizer::RecalcSizes() call below using coordinates relative
+ // to the top-left corner of the staticbox:
+ m_position.x = m_position.y = 0;
+#else
+ // if the wxStaticBox has childrens, then these windows must be placed
+ // by the wxBoxSizer::RecalcSizes() call below using coordinates relative
+ // to the top-left corner of the staticbox (but unlike wxGTK, we need
+ // to keep in count the static borders here!):
+ m_position.x = other_border;
+ m_position.y = top_border;
+#endif
+ }
+ else
+ {
+ // the windows contained in the staticbox have been created as siblings of the
+ // staticbox (this is the "old" way of staticbox contents creation); in this
+ // case we need to position them with coordinates relative to our common parent
+ m_position.x += other_border;
+ m_position.y += top_border;
+ }
+
wxBoxSizer::RecalcSizes();
m_position = old_pos;
wxSize wxStaticBoxSizer::CalcMin()
{
int top_border, other_border;
- GetStaticBoxBorders(m_staticBox, &top_border, &other_border);
+ m_staticBox->GetBordersForSizer(&top_border, &other_border);
wxSize ret( wxBoxSizer::CalcMin() );
ret.x += 2*other_border;
+
+ // ensure that we're wide enough to show the static box label (there is no
+ // need to check for the static box best size in vertical direction though)
+ const int boxWidth = m_staticBox->GetBestSize().x;
+ if ( ret.x < boxWidth )
+ ret.x = boxWidth;
+
ret.y += other_border + top_border;
return ret;
#endif // wxUSE_STATBOX
+//---------------------------------------------------------------------------
+// wxStdDialogButtonSizer
+//---------------------------------------------------------------------------
+
#if wxUSE_BUTTON
wxStdDialogButtonSizer::wxStdDialogButtonSizer()
}
// Extra space around and at the right
- Add(12, 24);
+ Add(12, 40);
#elif defined(__WXGTK20__)
- Add(0, 0, 0, wxLEFT, 9);
+ // http://library.gnome.org/devel/hig-book/stable/windows-alert.html.en
+ // says that the correct button order is
+ //
+ // [Help] [Alternative] [Cancel] [Affirmative]
+
+ // Flags ensuring that margins between the buttons are 6 pixels.
+ const wxSizerFlags
+ flagsBtn = wxSizerFlags().Centre().Border(wxLEFT | wxRIGHT, 3);
+
+ // Margin around the entire sizer button should be 12.
+ AddSpacer(9);
+
if (m_buttonHelp)
- Add((wxWindow*)m_buttonHelp, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 3);
+ Add(m_buttonHelp, flagsBtn);
- // extra whitespace between help and cancel/ok buttons
- Add(0, 0, 1, wxEXPAND, 0);
+ // Align the rest of the buttons to the right.
+ AddStretchSpacer();
- if (m_buttonNegative){
- Add((wxWindow*)m_buttonNegative, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 3);
- }
+ if (m_buttonNegative)
+ Add(m_buttonNegative, flagsBtn);
- // according to HIG, in explicit apply windows the order is:
- // [ Help Apply Cancel OK ]
if (m_buttonApply)
- Add((wxWindow*)m_buttonApply, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 3);
+ Add(m_buttonApply, flagsBtn);
- if (m_buttonCancel){
- Add((wxWindow*)m_buttonCancel, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 3);
- // Cancel or help should be default
- // m_buttonCancel->SetDefaultButton();
- }
+ if (m_buttonCancel)
+ Add(m_buttonCancel, flagsBtn);
if (m_buttonAffirmative)
- Add((wxWindow*)m_buttonAffirmative, 0, wxALIGN_CENTRE | wxLEFT, 6);
+ Add(m_buttonAffirmative, flagsBtn);
+
+ // Ensure that the right margin is 12 as well.
+ AddSpacer(9);
#elif defined(__WXMSW__)
// Windows
projects / wxWidgets.git / blobdiff