X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/02dc0099cb39b6126ff5c92e521a00c2d9e85313..f363cee882672e147340240cf0bb194a68e37833:/src/common/sizer.cpp diff --git a/src/common/sizer.cpp b/src/common/sizer.cpp index eb5eb59bbe..31bed2c619 100644 --- a/src/common/sizer.cpp +++ b/src/common/sizer.cpp @@ -5,7 +5,6 @@ // Dirk Holtwick, Ron Lee // Modified by: Ron Lee // Created: -// RCS-ID: $Id$ // Copyright: (c) Robin Dunn, Robert Roebling // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -17,8 +16,8 @@ #pragma hdrstop #endif -#include "wx/display.h" #include "wx/sizer.h" +#include "wx/private/flagscheck.h" #ifndef WX_PRECOMP #include "wx/string.h" @@ -31,6 +30,8 @@ #include "wx/toplevel.h" #endif // WX_PRECOMP +#include "wx/display.h" +#include "wx/vector.h" #include "wx/listimpl.cpp" @@ -87,6 +88,31 @@ WX_DEFINE_EXPORTED_LIST( wxSizerItemList ) // wxSizerItem // ---------------------------------------------------------------------------- +// check for flags conflicts +static const int SIZER_FLAGS_MASK = + wxADD_FLAG(wxCENTRE, + wxADD_FLAG(wxHORIZONTAL, + wxADD_FLAG(wxVERTICAL, + wxADD_FLAG(wxLEFT, + wxADD_FLAG(wxRIGHT, + wxADD_FLAG(wxUP, + wxADD_FLAG(wxDOWN, + wxADD_FLAG(wxALIGN_NOT, + wxADD_FLAG(wxALIGN_CENTER_HORIZONTAL, + wxADD_FLAG(wxALIGN_RIGHT, + wxADD_FLAG(wxALIGN_BOTTOM, + wxADD_FLAG(wxALIGN_CENTER_VERTICAL, + wxADD_FLAG(wxFIXED_MINSIZE, + wxADD_FLAG(wxRESERVE_SPACE_EVEN_IF_HIDDEN, + wxADD_FLAG(wxSTRETCH_NOT, + wxADD_FLAG(wxSHRINK, + wxADD_FLAG(wxGROW, + wxADD_FLAG(wxSHAPED, + 0)))))))))))))))))); + +#define ASSERT_VALID_SIZER_FLAGS(f) wxASSERT_VALID_FLAGS(f, SIZER_FLAGS_MASK) + + void wxSizerItem::Init(const wxSizerFlags& flags) { Init(); @@ -94,6 +120,8 @@ void wxSizerItem::Init(const wxSizerFlags& flags) m_proportion = flags.GetProportion(); m_flag = flags.GetFlags(); m_border = flags.GetBorderInPixels(); + + ASSERT_VALID_SIZER_FLAGS( m_flag ); } wxSizerItem::wxSizerItem() @@ -109,7 +137,7 @@ wxSizerItem::wxSizerItem() // 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; @@ -136,6 +164,8 @@ wxSizerItem::wxSizerItem(wxWindow *window, m_id(wxID_NONE), m_userData(userData) { + ASSERT_VALID_SIZER_FLAGS( m_flag ); + DoSetWindow(window); } @@ -160,6 +190,8 @@ wxSizerItem::wxSizerItem(wxSizer *sizer, m_ratio(0.0), m_userData(userData) { + ASSERT_VALID_SIZER_FLAGS( m_flag ); + DoSetSizer(sizer); // m_minSize is set later @@ -174,6 +206,33 @@ void wxSizerItem::DoSetSpacer(const wxSize& size) SetRatio(size); } +wxSize wxSizerItem::AddBorderToSize(const wxSize& size) const +{ + wxSize result = size; + + // Notice that we shouldn't modify the unspecified component(s) of the + // size, it's perfectly valid to have either min or max size specified in + // one direction only and it shouldn't be applied in the other one then. + + if ( result.x != wxDefaultCoord ) + { + if (m_flag & wxWEST) + result.x += m_border; + if (m_flag & wxEAST) + result.x += m_border; + } + + if ( result.y != wxDefaultCoord ) + { + if (m_flag & wxNORTH) + result.y += m_border; + if (m_flag & wxSOUTH) + result.y += m_border; + } + + return result; +} + wxSizerItem::wxSizerItem(int width, int height, int proportion, @@ -189,6 +248,8 @@ wxSizerItem::wxSizerItem(int width, m_id(wxID_NONE), m_userData(userData) { + ASSERT_VALID_SIZER_FLAGS( m_flag ); + DoSetSpacer(wxSize(width, height)); } @@ -219,7 +280,7 @@ void wxSizerItem::Free() case Item_Max: default: - wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") ); + wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") ); } m_kind = Item_None; @@ -257,7 +318,7 @@ wxSize wxSizerItem::GetSize() const case Item_Max: default: - wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") ); + wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") ); } if (m_flag & wxWEST) @@ -316,7 +377,7 @@ bool wxSizerItem::InformFirstDirection(int direction, int size, int availableOth { 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 @@ -362,20 +423,13 @@ wxSize wxSizerItem::CalcMin() wxSize wxSizerItem::GetMinSizeWithBorder() const { - wxSize ret = m_minSize; - - if (m_flag & wxWEST) - ret.x += m_border; - if (m_flag & wxEAST) - ret.x += m_border; - if (m_flag & wxNORTH) - ret.y += m_border; - if (m_flag & wxSOUTH) - ret.y += m_border; - - return ret; + return AddBorderToSize(m_minSize); } +wxSize wxSizerItem::GetMaxSizeWithBorder() const +{ + return AddBorderToSize(GetMaxSize()); +} void wxSizerItem::SetDimension( const wxPoint& pos_, const wxSize& size_ ) { @@ -442,16 +496,27 @@ void wxSizerItem::SetDimension( const wxPoint& pos_, const wxSize& size_ ) 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: + { + // Use wxSIZE_FORCE_EVENT here since a sizer item might + // have changed alignment or some other property which would + // not change the size of the window. In such a case, no + // wxSizeEvent would normally be generated and thus the + // control wouldn't get laid out correctly here. +#if 1 m_window->SetSize(pos.x, pos.y, size.x, size.y, - wxSIZE_ALLOW_MINUS_ONE); + wxSIZE_ALLOW_MINUS_ONE|wxSIZE_FORCE_EVENT ); +#else + m_window->SetSize(pos.x, pos.y, size.x, size.y, + wxSIZE_ALLOW_MINUS_ONE ); +#endif break; - + } case Item_Sizer: - m_sizer->SetDimension(pos.x, pos.y, size.x, size.y); + m_sizer->SetDimension(pos, size); break; case Item_Spacer: @@ -460,7 +525,7 @@ void wxSizerItem::SetDimension( const wxPoint& pos_, const wxSize& size_ ) case Item_Max: default: - wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") ); + wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") ); } } @@ -489,7 +554,7 @@ void wxSizerItem::DeleteWindows() case Item_Max: default: - wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") ); + wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") ); } } @@ -499,7 +564,7 @@ void wxSizerItem::Show( bool show ) 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: @@ -516,12 +581,15 @@ void wxSizerItem::Show( bool show ) case Item_Max: default: - wxFAIL_MSG( _T("unexpected wxSizerItem::m_kind") ); + wxFAIL_MSG( wxT("unexpected wxSizerItem::m_kind") ); } } bool wxSizerItem::IsShown() const { + if ( m_flag & wxRESERVE_SPACE_EVEN_IF_HIDDEN ) + return true; + switch ( m_kind ) { case Item_None: @@ -536,29 +604,14 @@ bool wxSizerItem::IsShown() const // arbitrarily decide that if at least one of our elements is // shown, so are we (this arbitrariness is the reason for // deprecating this function) - { - // 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) - return true; - - for ( wxSizerItemList::compatibility_iterator - node = m_sizer->GetChildren().GetFirst(); - node; - node = node->GetNext() ) - { - if ( node->GetData()->IsShown() ) - return true; - } - } - return false; + return m_sizer->AreAnyItemsShown(); 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; @@ -586,7 +639,7 @@ wxSizer::~wxSizer() 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 ); @@ -631,7 +684,7 @@ bool wxSizer::Remove( wxWindow *window ) 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) @@ -655,11 +708,11 @@ bool wxSizer::Remove( int index ) { 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 ); @@ -669,7 +722,7 @@ bool wxSizer::Remove( int index ) 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) @@ -691,7 +744,7 @@ bool wxSizer::Detach( wxSizer *sizer ) 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) @@ -714,11 +767,11 @@ bool wxSizer::Detach( int index ) { 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(); @@ -732,8 +785,8 @@ bool wxSizer::Detach( int index ) 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) @@ -760,8 +813,8 @@ bool wxSizer::Replace( wxWindow *oldwin, wxWindow *newwin, bool recursive ) 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) @@ -787,15 +840,19 @@ bool wxSizer::Replace( wxSizer *oldsz, wxSizer *newsz, bool recursive ) 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); + + if (item->IsWindow() && item->GetWindow()) + item->GetWindow()->SetContainingSizer(NULL); + delete item; return true; @@ -834,10 +891,13 @@ void wxSizer::DeleteWindows() } } -wxSize wxSizer::Fit( wxWindow *window ) +wxSize wxSizer::ComputeFittingClientSize(wxWindow *window) { + wxCHECK_MSG( window, wxDefaultSize, "window can't be NULL" ); + // take the min size by default and limit it by max size wxSize size = GetMinClientSize(window); + wxSize sizeMax; wxTopLevelWindow *tlw = wxDynamicCast(window, wxTopLevelWindow); if ( tlw ) @@ -845,10 +905,9 @@ wxSize wxSizer::Fit( wxWindow *window ) // hack for small screen devices where TLWs are always full screen if ( tlw->IsAlwaysMaximized() ) { - // do nothing - return tlw->GetSize(); + return tlw->GetClientSize(); } - + // limit the window to the size of the display it is on int disp = wxDisplay::GetFromWindow(window); if ( disp == wxNOT_FOUND ) @@ -857,40 +916,45 @@ wxSize wxSizer::Fit( wxWindow *window ) disp = 0; } - wxSize sizeMax = wxDisplay(disp).GetClientArea().GetSize(); - + sizeMax = wxDisplay(disp).GetClientArea().GetSize(); + + // If determining the display size failed, skip the max size checks as + // we really don't want to create windows of (0, 0) size. + if ( !sizeMax.x || !sizeMax.y ) + return size; + // space for decorations and toolbars etc. - wxSize tlw_client_size = tlw->GetClientSize(); - wxSize tlw_size = tlw->GetSize(); - sizeMax.x -= tlw_size.x - tlw_client_size.x; - sizeMax.y -= tlw_size.y - tlw_client_size.y; - - if ( sizeMax.x != wxDefaultCoord && size.x > sizeMax.x ) - size.x = sizeMax.x; - if ( sizeMax.y != wxDefaultCoord && size.y > sizeMax.y ) - size.y = sizeMax.y; - - // set client size - tlw->SetClientSize( size ); - - // return entire size - return tlw->GetSize(); + sizeMax = tlw->WindowToClientSize(sizeMax); } else { - wxSize sizeMax = GetMaxClientSize(window); - - if ( sizeMax.x != wxDefaultCoord && size.x > sizeMax.x ) - size.x = sizeMax.x; - if ( sizeMax.y != wxDefaultCoord && size.y > sizeMax.y ) - size.y = sizeMax.y; + sizeMax = GetMaxClientSize(window); + } - // set client size - window->SetClientSize( size ); + if ( sizeMax.x != wxDefaultCoord && size.x > sizeMax.x ) + size.x = sizeMax.x; + if ( sizeMax.y != wxDefaultCoord && size.y > sizeMax.y ) + size.y = sizeMax.y; - // return entire size - return window->GetSize(); - } + return size; +} + +wxSize wxSizer::ComputeFittingWindowSize(wxWindow *window) +{ + wxCHECK_MSG( window, wxDefaultSize, "window can't be NULL" ); + + return window->ClientToWindowSize(ComputeFittingClientSize(window)); +} + +wxSize wxSizer::Fit( wxWindow *window ) +{ + wxCHECK_MSG( window, wxDefaultSize, "window can't be NULL" ); + + // set client size + window->SetClientSize(ComputeFittingClientSize(window)); + + // return entire size + return window->GetSize(); } void wxSizer::FitInside( wxWindow *window ) @@ -911,6 +975,8 @@ void wxSizer::Layout() CalcMin(); // Applies the layout and repositions/resizes the items + wxWindow::ChildrenRepositioningGuard repositionGuard(m_containingWindow); + RecalcSizes(); } @@ -919,12 +985,16 @@ void wxSizer::SetSizeHints( wxWindow *window ) // Preserve the window's max size hints, but set the // lower bound according to the sizer calculations. - wxSize size = Fit( window ); + // This is equivalent to calling Fit(), except that we need to set + // the size hints _in between_ the two steps performed by Fit + // (1. ComputeFittingClientSize, 2. SetClientSize). That's because + // otherwise SetClientSize() could have no effect if there already are + // size hints in effect that forbid requested client size. + + const wxSize clientSize = ComputeFittingClientSize(window); - window->SetSizeHints( size.x, - size.y, - window->GetMaxWidth(), - window->GetMaxHeight() ); + window->SetMinClientSize(clientSize); + window->SetClientSize(clientSize); } #if WXWIN_COMPATIBILITY_2_8 @@ -934,38 +1004,12 @@ void wxSizer::SetVirtualSizeHints( wxWindow *window ) } #endif // WXWIN_COMPATIBILITY_2_8 -wxSize wxSizer::GetMaxWindowSize( wxWindow *window ) const -{ - return window->GetMaxSize(); -} - -wxSize wxSizer::GetMinWindowSize( wxWindow *window ) -{ - wxSize minSize( GetMinSize() ); - wxSize size( window->GetSize() ); - wxSize client_size( window->GetClientSize() ); - - return wxSize( minSize.x+size.x-client_size.x, - minSize.y+size.y-client_size.y ); -} - // TODO on mac we need a function that determines how much free space this // min size contains, in order to make sure that we have 20 pixels of free // space around the controls wxSize wxSizer::GetMaxClientSize( wxWindow *window ) const { - wxSize maxSize( window->GetMaxSize() ); - - if ( maxSize != wxDefaultSize ) - { - wxSize size( window->GetSize() ); - wxSize client_size( window->GetClientSize() ); - - return wxSize( maxSize.x + client_size.x - size.x, - maxSize.y + client_size.y - size.y ); - } - else - return wxDefaultSize; + return window->WindowToClientSize(window->GetMaxSize()); } wxSize wxSizer::GetMinClientSize( wxWindow *WXUNUSED(window) ) @@ -988,15 +1032,6 @@ wxSize wxSizer::VirtualFitSize( wxWindow *window ) return size; } -void wxSizer::SetDimension( int x, int y, int width, int height ) -{ - m_position.x = x; - m_position.y = y; - m_size.x = width; - m_size.y = height; - Layout(); -} - wxSize wxSizer::GetMinSize() { wxSize ret( CalcMin() ); @@ -1013,7 +1048,7 @@ void wxSizer::DoSetMinSize( int width, int height ) 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? @@ -1051,7 +1086,7 @@ bool wxSizer::DoSetItemMinSize( wxWindow *window, int width, int height ) 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? @@ -1091,7 +1126,7 @@ bool wxSizer::DoSetItemMinSize( size_t index, int width, int height ) { 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(); @@ -1111,7 +1146,7 @@ bool wxSizer::DoSetItemMinSize( size_t index, int width, int height ) 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) @@ -1137,7 +1172,7 @@ wxSizerItem* wxSizer::GetItem( wxWindow *window, bool recursive ) 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) @@ -1165,7 +1200,7 @@ wxSizerItem* wxSizer::GetItem( size_t index ) { 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(); } @@ -1246,6 +1281,19 @@ void wxSizer::ShowItems( bool show ) } } +bool wxSizer::AreAnyItemsShown() const +{ + wxSizerItemList::compatibility_iterator node = m_children.GetFirst(); + while (node) + { + if ( node->GetData()->IsShown() ) + return true; + node = node->GetNext(); + } + + return false; +} + bool wxSizer::IsShown( wxWindow *window ) const { wxSizerItemList::compatibility_iterator node = m_children.GetFirst(); @@ -1260,7 +1308,7 @@ bool wxSizer::IsShown( wxWindow *window ) const node = node->GetNext(); } - wxFAIL_MSG( _T("IsShown failed to find sizer item") ); + wxFAIL_MSG( wxT("IsShown failed to find sizer item") ); return false; } @@ -1279,7 +1327,7 @@ bool wxSizer::IsShown( wxSizer *sizer ) const node = node->GetNext(); } - wxFAIL_MSG( _T("IsShown failed to find sizer item") ); + wxFAIL_MSG( wxT("IsShown failed to find sizer item") ); return false; } @@ -1288,7 +1336,7 @@ bool wxSizer::IsShown( size_t index ) const { 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(); } @@ -1298,45 +1346,86 @@ bool wxSizer::IsShown( size_t index ) const // 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) { - int nitems = m_children.GetCount(); - if ( nitems) + // 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 ( m_cols ) + const int nitems = m_children.GetCount(); + if ( nitems == m_cols*m_rows ) { - ncols = m_cols; - nrows = (nitems + m_cols - 1) / m_cols; - } - else if ( m_rows ) - { - ncols = (nitems + m_rows - 1) / m_rows; - nrows = m_rows; - } - else // 0 columns, 0 rows? - { - wxFAIL_MSG( _T("grid sizer must have either rows or columns fixed") ); + 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) + ); - nrows = ncols = 0; + // 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::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; } @@ -1363,7 +1452,7 @@ void wxGridSizer::RecalcSizes() { 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); } @@ -1466,6 +1555,20 @@ void wxGridSizer::SetItemBounds( wxSizerItem *item, int x, int y, int w, int 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), @@ -1473,8 +1576,8 @@ wxFlexGridSizer::wxFlexGridSizer( int rows, int cols, int vgap, int hgap ) { } -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) { @@ -1623,11 +1726,9 @@ wxSize wxFlexGridSizer::CalcMin() 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 ) + ++i) { wxSizerItem * const item = *i; if ( item->IsShown() ) @@ -1756,6 +1857,38 @@ DoAdjustForGrowables(int delta, 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 @@ -1770,32 +1903,32 @@ void wxFlexGridSizer::AdjustForGrowables(const wxSize& sz) // 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 if( didAdjustMinSize ) - { - DoAdjustForGrowables - ( - sz.x - m_calculatedMinSize.x, - m_growableCols, - m_colWidths, - m_growMode == wxFLEX_GROWMODE_SPECIFIED ? &m_growableColsProportions - : NULL - ); + { + DoAdjustForGrowables + ( + sz.x - m_calculatedMinSize.x, + m_growableCols, + m_colWidths, + m_growMode == wxFLEX_GROWMODE_SPECIFIED ? &m_growableColsProportions + : NULL + ); + } } -} if ( (m_flexDirection & wxVERTICAL) || (m_growMode != wxFLEX_GROWMODE_NONE) ) { @@ -1812,15 +1945,40 @@ void wxFlexGridSizer::AdjustForGrowables(const wxSize& sz) } } +bool wxFlexGridSizer::IsRowGrowable( size_t idx ) +{ + return m_growableRows.Index( idx ) != wxNOT_FOUND; +} + +bool wxFlexGridSizer::IsColGrowable( size_t idx ) +{ + return m_growableCols.Index( idx ) != wxNOT_FOUND; +} void wxFlexGridSizer::AddGrowableRow( size_t idx, int proportion ) { + 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 ) { + 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 ); } @@ -1840,7 +1998,7 @@ DoRemoveFromArrays(size_t idx, wxArrayInt& items, wxArrayInt& proportions) } } - wxFAIL_MSG( _T("column/row is already not growable") ); + wxFAIL_MSG( wxT("column/row is already not growable") ); } void wxFlexGridSizer::RemoveGrowableCol( size_t idx ) @@ -1857,25 +2015,78 @@ void wxFlexGridSizer::RemoveGrowableRow( 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; @@ -1892,60 +2103,273 @@ void wxBoxSizer::RecalcSizes() // 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 have changed + SizeInMajorDir(m_minSize) = 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 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 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); + } + + + // 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; - // adjust the size in the major direction using the proportion - wxCoord majorSize = GetSizeInMajorDir(sizeThis); - const int propItem = item->GetProportion(); - if ( propItem ) + 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 ) { - const int deltaItem = (delta * propItem) / totalProportion; + 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; - majorSize += deltaItem; + wxSizerItem * const item = *i; - delta -= deltaItem; + 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 ) + { + // 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; + + // 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; + + nonFixedSpaceChanged = true; + } + + // Similar to the previous loop, but dealing with items whose max size + // is less than what we would allocate to them taking their proportion + // into account. + 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 maxMajor = GetSizeInMajorDir(item->GetMaxSizeWithBorder()); + + // must be nonzero, fixed-size items were dealt with in previous loop + const int propItem = item->GetProportion(); + + // is the desired size of this item small enough? + if ( maxMajor < 0 || + (remaining*propItem)/totalProportion <= maxMajor ) + { + // 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] = maxMajor; + + // 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 -= maxMajor; + + 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; + + // do not allow the size in the minor direction to grow beyond the max + // size of the item in the minor direction + const wxCoord maxMinorSize = GetSizeInMinorDir(item->GetMaxSizeWithBorder()); + if ( maxMinorSize >= 0 && minorSize > maxMinorSize ) + minorSize = maxMinorSize; } - else if ( flag & (IsVertical() ? wxALIGN_RIGHT : wxALIGN_BOTTOM) ) + + if ( flag & (IsVertical() ? wxALIGN_RIGHT : wxALIGN_BOTTOM) ) { PosInMinorDir(posChild) += totalMinorSize - minorSize; } // NB: wxCENTRE is used here only for backwards compatibility, // wxALIGN_CENTRE should be used in new code - else if ( flag & (wxCENTER | wxALIGN_CENTRE) ) + else if ( flag & (wxCENTER | (IsVertical() ? wxALIGN_CENTRE_HORIZONTAL + : wxALIGN_CENTRE_VERTICAL)) ) { PosInMinorDir(posChild) += (totalMinorSize - minorSize) / 2; } @@ -1974,7 +2398,12 @@ wxSize wxBoxSizer::CalcMin() 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 ) @@ -1985,231 +2414,31 @@ wxSize wxBoxSizer::CalcMin() continue; 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() ) + if ( const int propThis = item->GetProportion() ) { - 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 + float minSizeToProp = GetSizeInMajorDir(sizeMinThis); + minSizeToProp /= propThis; - int maxMajor = 0; - int minorSum = 0; - int lineMaxMinor = 0; - int lineSumMajor = 0; - m_n_line = 0; + if ( minSizeToProp > maxMinSizeToProp ) + maxMinSizeToProp = minSizeToProp; - // precalc item minsizes and fit on lines (preliminary) - wxSizerItemList::compatibility_iterator node = m_children.GetFirst(); - while (node) - { - wxSizerItem *item = node->GetData(); - if ( item->IsShown() ) + m_totalProportion += item->GetProportion(); + } + else // fixed size item { - 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; - } + // Just account for its size directly + SizeInMajorDir(m_minSize) += GetSizeInMajorDir(sizeMinThis); } - node = node->GetNext(); + + // In the transversal direction we just need to find the maximum. + if ( GetSizeInMinorDir(sizeMinThis) > GetSizeInMinorDir(m_minSize) ) + SizeInMinorDir(m_minSize) = GetSizeInMinorDir(sizeMinThis); } - minorSum += lineMaxMinor; // Add height of highest item on last line - m_minSize = SizeFromMajorMinor(maxMajor, minorSum); + // 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; } @@ -2243,29 +2472,48 @@ wxStaticBoxSizer::~wxStaticBoxSizer() 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; +#elif defined(__WXOSX__) && wxOSX_USE_COCOA + // the distance from the 'inner' content view to the embedded controls + // this is independent of the title, therefore top_border is not relevant + m_position.x = m_position.y = 10; +#else + // if the wxStaticBox has children, 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; @@ -2275,10 +2523,17 @@ void wxStaticBoxSizer::RecalcSizes() 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; @@ -2290,6 +2545,16 @@ void wxStaticBoxSizer::ShowItems( bool show ) wxBoxSizer::ShowItems( show ); } +bool wxStaticBoxSizer::AreAnyItemsShown() const +{ + // We don't need to check the status of our child items: if the box is + // shown, this sizer should be considered shown even if all its elements + // are hidden (or, more prosaically, there are no elements at all). And, + // conversely, if the box is hidden then all our items, which are its + // children, are hidden too. + return m_staticBox->IsShown(); +} + bool wxStaticBoxSizer::Detach( wxWindow *window ) { // avoid deleting m_staticBox in our dtor if it's being detached from the @@ -2306,6 +2571,10 @@ bool wxStaticBoxSizer::Detach( wxWindow *window ) #endif // wxUSE_STATBOX +//--------------------------------------------------------------------------- +// wxStdDialogButtonSizer +//--------------------------------------------------------------------------- + #if wxUSE_BUTTON wxStdDialogButtonSizer::wxStdDialogButtonSizer() @@ -2413,32 +2682,40 @@ void wxStdDialogButtonSizer::Realize() } // 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