return ret;
}
+bool wxSizerItem::InformFirstDirection(int direction, int size, int availableOtherDir)
+{
+ // The size that come here will be including borders. Child items should get it
+ // without borders.
+ if( size>0 )
+ {
+ if( direction==wxHORIZONTAL )
+ {
+ if (m_flag & wxWEST)
+ size -= m_border;
+ if (m_flag & wxEAST)
+ size -= m_border;
+ }
+ else if( direction==wxVERTICAL )
+ {
+ if (m_flag & wxNORTH)
+ size -= m_border;
+ if (m_flag & wxSOUTH)
+ size -= m_border;
+ }
+ }
+
+ bool didUse = false;
+ // Pass the information along to the held object
+ if (IsSizer())
+ {
+ didUse = GetSizer()->InformFirstDirection(direction,size,availableOtherDir);
+ if (didUse)
+ m_minSize = GetSizer()->CalcMin();
+ }
+ else if (IsWindow())
+ {
+ didUse = GetWindow()->InformFirstDirection(direction,size,availableOtherDir);
+ if (didUse)
+ m_minSize = m_window->GetEffectiveMinSize();
+
+ // This information is useful for items with wxSHAPED flag, since
+ // we can request an optimal min size for such an item. Even if
+ // we overwrite the m_minSize member here, we can read it back from
+ // the owned window (happens automatically).
+ if( (m_flag & wxSHAPED) && (m_flag & wxEXPAND) && direction )
+ {
+ if( !wxIsNullDouble(m_ratio) )
+ {
+ wxCHECK_MSG( (m_proportion==0), false, _T("Shaped item, non-zero proportion in wxSizerItem::InformFirstDirection()") );
+ if( direction==wxHORIZONTAL && !wxIsNullDouble(m_ratio) )
+ {
+ // Clip size so that we don't take too much
+ if( availableOtherDir>=0 && int(size/m_ratio)-m_minSize.y>availableOtherDir )
+ size = int((availableOtherDir+m_minSize.y)*m_ratio);
+ m_minSize = wxSize(size,int(size/m_ratio));
+ }
+ else if( direction==wxVERTICAL )
+ {
+ // Clip size so that we don't take too much
+ if( availableOtherDir>=0 && int(size*m_ratio)-m_minSize.x>availableOtherDir )
+ size = int((availableOtherDir+m_minSize.x)/m_ratio);
+ m_minSize = wxSize(int(size*m_ratio),size);
+ }
+ didUse = true;
+ }
+ }
+ }
+
+ return didUse;
+}
+
wxSize wxSizerItem::CalcMin()
{
if (IsSizer())
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 );
}
return total;
}
-wxSize wxFlexGridSizer::CalcMin()
+void wxFlexGridSizer::FindWidthsAndHeights(int nrows, int ncols)
{
- int nrows,
- ncols;
-
- // Number of rows/columns can change as items are added or removed.
- if ( !CalcRowsCols(nrows, ncols) )
- return wxSize();
-
-
// 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
wxSizerItem * const item = *i;
if ( item->IsShown() )
{
- const wxSize sz(item->CalcMin());
+ // NOTE: Not doing the calculation here, this is just
+ // for finding max values.
+ const wxSize sz(item->GetMinSizeWithBorder());
const int row = n / ncols;
const int col = n % ncols;
m_calculatedMinSize = wxSize(SumArraySizes(m_colWidths, m_hgap),
SumArraySizes(m_rowHeights, m_vgap));
+}
+
+wxSize wxFlexGridSizer::CalcMin()
+{
+ int nrows,
+ ncols;
+
+ // Number of rows/columns can change as items are added or removed.
+ if ( !CalcRowsCols(nrows, ncols) )
+ return wxSize();
+
+
+ // 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() )
+ {
+ item->CalcMin();
+ }
+ }
+
+ // The stage of looking for max values in each row/column has been
+ // made a separate function, since it's reused in AdjustForGrowables.
+ FindWidthsAndHeights(nrows,ncols);
return m_calculatedMinSize;
}
void wxFlexGridSizer::AdjustForGrowables(const wxSize& sz)
{
- if ( (m_flexDirection & wxVERTICAL) || (m_growMode != wxFLEX_GROWMODE_NONE) )
+ if ( (m_flexDirection & wxHORIZONTAL) || (m_growMode != wxFLEX_GROWMODE_NONE) )
{
- // pass NULL instead of proportions if the grow mode is ALL as we
- // should treat all rows as having proportion of 1 then
DoAdjustForGrowables
(
- sz.y - m_calculatedMinSize.y,
- m_growableRows,
- m_rowHeights,
- m_growMode == wxFLEX_GROWMODE_SPECIFIED ? &m_growableRowsProportions
+ sz.x - m_calculatedMinSize.x,
+ m_growableCols,
+ m_colWidths,
+ m_growMode == wxFLEX_GROWMODE_SPECIFIED ? &m_growableColsProportions
: NULL
);
+
+ // 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;
+ for ( wxSizerItemList::iterator i = m_children.begin();
+ i != m_children.end();
+ ++i, ++n )
+ {
+ const int col = n % ncols;
+ didAdjustMinSize |= (*i)->InformFirstDirection(wxHORIZONTAL, m_colWidths[col], sz.y - m_calculatedMinSize.y);
}
- if ( (m_flexDirection & wxHORIZONTAL) || (m_growMode != wxFLEX_GROWMODE_NONE) )
+ // Only redo if info was actually used
+ if( didAdjustMinSize )
{
DoAdjustForGrowables
(
}
}
+ if ( (m_flexDirection & wxVERTICAL) || (m_growMode != wxFLEX_GROWMODE_NONE) )
+ {
+ // pass NULL instead of proportions if the grow mode is ALL as we
+ // should treat all rows as having proportion of 1 then
+ DoAdjustForGrowables
+ (
+ sz.y - m_calculatedMinSize.y,
+ m_growableRows,
+ m_rowHeights,
+ m_growMode == wxFLEX_GROWMODE_SPECIFIED ? &m_growableRowsProportions
+ : NULL
+ );
+ }
+}
+
void wxFlexGridSizer::AddGrowableRow( size_t idx, int proportion )
{
if ( m_children.empty() )
return;
+ const wxCoord totalMinorSize = GetSizeInMinorDir(m_size);
+
// the amount of free space which we should redistribute among the
// stretchable items (i.e. those with non zero proportion)
- int delta = SizeInMajorDir(m_size) - SizeInMajorDir(m_minSize);
+ int delta = GetSizeInMajorDir(m_size) - GetSizeInMajorDir(m_minSize);
+
+
+ // 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 )
+ {
+ wxSizerItem * const item = *i;
+
+ if ( !item->IsShown() )
+ continue;
+
+ wxSize szMinPrev = item->GetMinSizeWithBorder();
+ item->InformFirstDirection(m_orient^wxBOTH,totalMinorSize,delta);
+ wxSize szMin = item->GetMinSizeWithBorder();
+ int deltaChange = GetSizeInMajorDir(szMin-szMinPrev);
+ if( deltaChange )
+ {
+ // Since we passed available space along to the item, it should not
+ // take too much, so delta should not become negative.
+ delta -= deltaChange;
+ }
+ majorMinSum += 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);
// the position at which we put the next child
wxPoint pt(m_position);
- const wxCoord totalMinorSize = SizeInMinorDir(m_size);
-
int totalProportion = m_totalProportion;
- for ( wxSizerItemList::const_iterator i = m_children.begin();
+ for ( i = m_children.begin();
i != m_children.end();
++i )
{
if ( !item->IsShown() )
continue;
-#ifndef __DMC__
- // DMC doesn't distinguish between
- // int SizeInMajorDir(const wxSize& sz) const
- // and int& SizeInMajorDir(wxSize& sz)
- const
-#endif
- wxSize sizeThis(item->GetMinSizeWithBorder());
+ const wxSize sizeThis(item->GetMinSizeWithBorder());
// adjust the size in the major direction using the proportion
- wxCoord majorSize = SizeInMajorDir(sizeThis);
+ wxCoord majorSize = GetSizeInMajorDir(sizeThis);
const int propItem = item->GetProportion();
if ( propItem )
{
// apply the alignment in the minor direction
wxPoint posChild(pt);
- wxCoord minorSize = SizeInMinorDir(sizeThis);
+ wxCoord minorSize = GetSizeInMinorDir(sizeThis);
const int flag = item->GetFlag();
if ( flag & (wxEXPAND | wxSHAPED) )
{
if ( !item->IsShown() )
continue;
-#ifndef __DMC__
- const // see __DMC__ above
-#endif
- wxSize sizeMinThis = item->CalcMin();
- SizeInMajorDir(m_minSize) += SizeInMajorDir(sizeMinThis);
- if ( SizeInMinorDir(sizeMinThis) > SizeInMinorDir(m_minSize) )
- SizeInMinorDir(m_minSize) = SizeInMinorDir(sizeMinThis);
+ const wxSize sizeMinThis = item->CalcMin();
+ SizeInMajorDir(m_minSize) += GetSizeInMajorDir(sizeMinThis);
+ if ( GetSizeInMinorDir(sizeMinThis) > GetSizeInMinorDir(m_minSize) )
+ SizeInMinorDir(m_minSize) = GetSizeInMinorDir(sizeMinThis);
m_totalProportion += item->GetProportion();
}
return m_minSize;
}
+//---------------------------------------------------------------------------
+// wxWrapSizer
+//---------------------------------------------------------------------------
+
+#define wxDEFAULT_PROPORTION_LAST 1000000
+
+// User data to hold old proportion for last item on line
+// (which might be extended)
+struct wxPropHolder : public wxObject
+{
+ wxPropHolder( ) : m_item(0), m_propOld(0) { }
+ void Init( wxSizerItem *item, int propOld ) { m_item=item; m_propOld=propOld; }
+
+ wxSizerItem *m_item;
+ int m_propOld;
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxWrapSizer, wxBoxSizer);
+
+wxWrapSizer::wxWrapSizer( int orient, int flags )
+ : wxBoxSizer(orient),
+ m_prim_size_last( -1 ),
+ m_rows(orient^wxBOTH),
+ m_flags(flags)
+{
+}
+
+wxWrapSizer::~wxWrapSizer()
+{
+ // Have to clear grand child items so that they're not deleted twice
+ for( int ix=m_rows.GetChildren().GetCount()-1; ix>=0; ix-- )
+ {
+ wxSizer *psz = m_rows.GetItem((size_t)ix)->GetSizer();
+ wxSizerItemList &sl = psz->GetChildren();
+ while( sl.GetLast() )
+ sl.Erase( sl.GetLast() );
+ }
+}
+
+
+bool wxWrapSizer::InformFirstDirection( int direction, int size, int WXUNUSED(availableOtherDir) )
+{
+ if( !direction )
+ {
+ // Better to keep value, then CalcMin will work better
+ //m_prim_size_last = -1;
+ return false;
+ }
+ if( direction==m_orient )
+ {
+ // The direction is same as our primary, so we can make use of it
+ m_prim_size_last = size;
+ return true;
+ }
+ else
+ return false;
+}
+
+
+void wxWrapSizer::AdjustPropLastItem(wxSizer *psz, wxSizerItem *itemLast)
+{
+ wxSizerItem *psi = m_rows.GetItem(psz);
+ wxASSERT(psi);
+ wxPropHolder *pph = (wxPropHolder*)psi->GetUserData();
+ if ( !pph )
+ psi->SetUserData( pph=new wxPropHolder );
+
+ pph->Init( itemLast, itemLast->GetProportion() );
+ itemLast->SetProportion( wxDEFAULT_PROPORTION_LAST );
+}
+
+void wxWrapSizer::RecalcSizes()
+{
+ wxASSERT( m_orient&wxBOTH );
+ if (m_children.GetCount() == 0)
+ return;
+
+ // What we do here is to put our items into child box sizers,
+ // as many of them as we have lines.
+
+ // Empty all items in all rows in owned sizer.
+ // We have to access the list directly, since we don't want to
+ // destroy the wxSizerItems.
+ for( int ix=m_rows.GetChildren().GetCount()-1; ix>=0; ix-- ){
+ wxSizerItem *psi = m_rows.GetItem( (size_t)ix );
+
+ // Restore proportion for last item on line (if item has not been deleted)
+ wxPropHolder *pph = (wxPropHolder*)psi->GetUserData();
+ if( pph && GetChildren().Find(pph->m_item) )
+ pph->m_item->SetProportion(pph->m_propOld);
+
+ wxSizer *psz = psi->GetSizer();
+ wxASSERT( psz );
+ wxSizerItemList &sl = psz->GetChildren();
+ while( sl.GetLast() )
+ sl.Erase( sl.GetLast() );
+ }
+
+ int lineSumMajor = 0;
+ int majorSize = GetSizeInMajorDir(m_size);
+
+ // Make sure we have at least one child sizer
+ m_n_line = 1;
+ if( !m_rows.GetChildren().GetCount() )
+ m_rows.Add( new wxBoxSizer(GetOrientation()), 1, wxEXPAND );
+
+ // The sizer where to insert items in
+ wxSizer *psz = m_rows.GetItem((size_t)0)->GetSizer();
+ wxASSERT( psz );
+
+ // Now put our child items into child sizers instead
+ wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
+ wxSizerItem *item = NULL, *itemLast=NULL;
+ while (node)
+ {
+ item = node->GetData();
+ if ( item->IsShown() )
+ {
+ wxSize minSz = item->GetMinSize();
+ int minSzMajor = GetSizeInMajorDir(minSz);
+
+ // More space on this line?
+ if( !lineSumMajor || lineSumMajor+minSzMajor<=majorSize )
+ {
+ lineSumMajor += minSzMajor;
+ }
+ else
+ {
+ lineSumMajor = minSzMajor;
+ // Get a new empty sizer to insert into
+ if( (int)m_rows.GetChildren().GetCount()<=m_n_line )
+ m_rows.Add( new wxBoxSizer(GetOrientation()), 1, wxEXPAND );
+
+ // If we have extend-last-on-each-line mode, then do so now
+ // Note: We must store old proportion value then.
+ if( m_flags&wxEXTEND_LAST_ON_EACH_LINE )
+ AdjustPropLastItem(psz,itemLast);
+
+ // The sizer where to insert items in
+ psz = m_rows.GetItem(m_n_line++)->GetSizer();
+ }
+ itemLast = item;
+ psz->Add( item );
+ // If item is a window, it now has a pointer to the child sizer,
+ // which is wrong. Set it to point to us.
+ if( item->GetWindow() )
+ item->GetWindow()->SetContainingSizer( this );
+ }
+ node = node->GetNext();
+ }
+
+ // If we have extend-last-on-each-line mode, then do so now
+ if( m_flags&wxEXTEND_LAST_ON_EACH_LINE )
+ AdjustPropLastItem(psz,itemLast);
+
+ // If we have more sizers than lines, remove them
+ while( (int)m_rows.GetChildren().GetCount()>m_n_line )
+ m_rows.Remove( m_n_line );
+
+ // Now do layout on row sizer
+ m_rows.SetDimension( m_position.x, m_position.y, m_size.x, m_size.y );
+
+ // Remember this to next time (will be overridden by InformFirstDirection if used)
+ m_prim_size_last = GetSizeInMajorDir(m_size);
+}
+
+
+wxSize wxWrapSizer::CalcMin()
+{
+ if (m_children.GetCount() == 0)
+ return wxSize();
+
+ // Algorithm for calculating min size: (assuming horizontal orientation)
+ // X: Max width of all members
+ // Y: Based on last X, calculate how many lines needed
+ // First time around, assume all items fits on one line
+
+ int maxMajor = 0;
+ int minorSum = 0;
+ int lineMaxMinor = 0;
+ int lineSumMajor = 0;
+ m_n_line = 0;
+
+ // precalc item minsizes and fit on lines (preliminary)
+ wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxSizerItem *item = node->GetData();
+ if ( item->IsShown() )
+ {
+ wxSize minSz = item->CalcMin();
+ int szMajor = GetSizeInMajorDir(minSz);
+ int szMinor = GetSizeInMinorDir(minSz);
+ if( szMajor>maxMajor ) maxMajor = szMajor;
+ // More space on this line?
+ if( m_prim_size_last<0 || !lineSumMajor ||
+ lineSumMajor+szMajor<=m_prim_size_last )
+ {
+ lineSumMajor += szMajor;
+ if( szMinor>lineMaxMinor )
+ lineMaxMinor = szMinor;
+ }
+ else
+ {
+ minorSum += lineMaxMinor; // Add height of highest item on last line
+ m_n_line++;
+ lineMaxMinor = szMinor;
+ lineSumMajor = szMajor;
+ }
+ }
+ node = node->GetNext();
+ }
+ minorSum += lineMaxMinor; // Add height of highest item on last line
+
+ m_minSize = SizeFromMajorMinor(maxMajor, minorSum);
+ return m_minSize;
+}
+
//---------------------------------------------------------------------------
// wxStaticBoxSizer
//---------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff