// Dirk Holtwick, Ron Lee
// Modified by: Ron Lee
// Created:
-// RCS-ID: $Id$
// Copyright: (c) Robin Dunn, Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#pragma hdrstop
#endif
-#include "wx/display.h"
#include "wx/sizer.h"
+#include "wx/private/flagscheck.h"
#ifndef WX_PRECOMP
#include "wx/string.h"
#include "wx/toplevel.h"
#endif // WX_PRECOMP
+#include "wx/display.h"
+#include "wx/vector.h"
#include "wx/listimpl.cpp"
// 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();
m_proportion = flags.GetProportion();
m_flag = flags.GetFlags();
m_border = flags.GetBorderInPixels();
+
+ ASSERT_VALID_SIZER_FLAGS( m_flag );
}
wxSizerItem::wxSizerItem()
m_proportion = 0;
m_border = 0;
m_flag = 0;
+ m_id = wxID_NONE;
}
// 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;
m_proportion(proportion),
m_border(border),
m_flag(flag),
+ m_id(wxID_NONE),
m_userData(userData)
{
+ ASSERT_VALID_SIZER_FLAGS( m_flag );
+
DoSetWindow(window);
}
m_proportion(proportion),
m_border(border),
m_flag(flag),
+ m_id(wxID_NONE),
m_ratio(0.0),
m_userData(userData)
{
+ ASSERT_VALID_SIZER_FLAGS( m_flag );
+
DoSetSizer(sizer);
// m_minSize is set later
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,
m_proportion(proportion),
m_border(border),
m_flag(flag),
+ m_id(wxID_NONE),
m_userData(userData)
{
+ ASSERT_VALID_SIZER_FLAGS( m_flag );
+
DoSetSpacer(wxSize(width, height));
}
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)
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, 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
+ 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())
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_ )
{
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:
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") );
}
}
bool wxSizerItem::IsShown() const
{
+ if ( m_flag & wxRESERVE_SPACE_EVEN_IF_HIDDEN )
+ return true;
+
switch ( m_kind )
{
case Item_None:
// 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;
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 );
if ( item->GetWindow() )
item->GetWindow()->SetContainingSizer( this );
+ if ( item->GetSizer() )
+ item->GetSizer()->SetContainingWindow( m_containingWindow );
+
return 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);
+
+ if (item->IsWindow() && item->GetWindow())
+ item->GetWindow()->SetContainingSizer(NULL);
+
delete item;
return true;
}
}
-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 = GetMinWindowSize(window);
- wxSize sizeMax = GetMaxWindowSize(window);
+ wxSize size = GetMinClientSize(window);
+ wxSize sizeMax;
wxTopLevelWindow *tlw = wxDynamicCast(window, wxTopLevelWindow);
if ( tlw )
// hack for small screen devices where TLWs are always full screen
if ( tlw->IsAlwaysMaximized() )
{
- size = tlw->GetSize();
+ return tlw->GetClientSize();
}
- else // normal situation
- {
- // limit the window to the size of the display it is on
- int disp = wxDisplay::GetFromWindow(window);
- if ( disp == wxNOT_FOUND )
- {
- // or, if we don't know which one it is, of the main one
- disp = 0;
- }
- sizeMax = wxDisplay(disp).GetClientArea().GetSize();
+ // limit the window to the size of the display it is on
+ int disp = wxDisplay::GetFromWindow(window);
+ if ( disp == wxNOT_FOUND )
+ {
+ // or, if we don't know which one it is, of the main one
+ disp = 0;
}
+
+ 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.
+ sizeMax = tlw->WindowToClientSize(sizeMax);
+ }
+ else
+ {
+ sizeMax = GetMaxClientSize(window);
}
if ( sizeMax.x != wxDefaultCoord && size.x > sizeMax.x )
- size.x = sizeMax.x;
+ size.x = sizeMax.x;
if ( sizeMax.y != wxDefaultCoord && size.y > sizeMax.y )
- size.y = sizeMax.y;
+ size.y = sizeMax.y;
+ return size;
+}
- window->SetSize( size );
+wxSize wxSizer::ComputeFittingWindowSize(wxWindow *window)
+{
+ wxCHECK_MSG( window, wxDefaultSize, "window can't be NULL" );
- return size;
+ 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 )
CalcMin();
// Applies the layout and repositions/resizes the items
+ wxWindow::ChildrenRepositioningGuard repositionGuard(m_containingWindow);
+
RecalcSizes();
}
// 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.
- window->SetSizeHints( size.x,
- size.y,
- window->GetMaxWidth(),
- window->GetMaxHeight() );
+ const wxSize clientSize = ComputeFittingClientSize(window);
+
+ window->SetMinClientSize(clientSize);
+ window->SetClientSize(clientSize);
}
+#if WXWIN_COMPATIBILITY_2_8
void wxSizer::SetVirtualSizeHints( wxWindow *window )
{
- // Preserve the window's max size hints, but set the
- // lower bound according to the sizer calculations.
-
FitInside( window );
- wxSize size( window->GetVirtualSize() );
- window->SetVirtualSizeHints( size.x,
- size.y,
- window->GetMaxWidth(),
- window->GetMaxHeight() );
-}
-
-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 );
}
+#endif // WXWIN_COMPATIBILITY_2_8
// 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) )
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() );
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();
}
+wxSizerItem* wxSizer::GetItemById( int id, bool recursive )
+{
+ // This gets a sizer item by the id of the sizer item
+ // and NOT the id of a window if the item is a window.
+
+ wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxSizerItem *item = node->GetData();
+
+ if (item->GetId() == id)
+ {
+ return item;
+ }
+ else if (recursive && item->IsSizer())
+ {
+ wxSizerItem *subitem = item->GetSizer()->GetItemById( id, true );
+ if (subitem)
+ return subitem;
+ }
+
+ node = node->GetNext();
+ }
+
+ return NULL;
+}
+
bool wxSizer::Show( wxWindow *window, bool show, bool recursive )
{
wxSizerItem *item = GetItem( window, recursive );
}
}
+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();
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)
{
- 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") );
-
- nrows = ncols = 0;
+ wxFAIL_MSG(
+ wxString::Format(
+ "too many items (%d > %d*%d) in grid sizer (maybe you "
+ "should omit the number of either rows or columns?)",
+ nitems + 1, m_cols, m_rows)
+ );
+
+ // additionally, continuing to use the specified number of columns
+ // and rows is not a good idea as callers of CalcRowsCols() expect
+ // that all sizer items can fit into m_cols-/m_rows-sized arrays
+ // which is not the case if there are too many items and results in
+ // crashes, so let it compute the number of rows automatically by
+ // forgetting the (wrong) number of rows specified (this also has a
+ // nice side effect of giving only one assert even if there are
+ // many more items than allowed in this sizer)
+ m_rows = 0;
}
}
+ return wxSizer::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);
}
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 );
}
// 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::RecalcSizes()
{
- int nitems, nrows, ncols;
- if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
+ int nrows, ncols;
+ if ( !CalcRowsCols(nrows, ncols) )
return;
- wxPoint pt( GetPosition() );
- wxSize sz( GetSize() );
+ const wxPoint pt(GetPosition());
+ const wxSize sz(GetSize());
- AdjustForGrowables(sz, m_calculatedMinSize, nrows, ncols);
+ AdjustForGrowables(sz);
- sz = wxSize( pt.x + sz.x, pt.y + sz.y );
+ wxSizerItemList::const_iterator i = m_children.begin();
+ const wxSizerItemList::const_iterator end = m_children.end();
- int x = pt.x;
- for (int c = 0; c < ncols; c++)
+ int y = 0;
+ for ( int r = 0; r < nrows; r++ )
{
- int y = pt.y;
- for (int r = 0; r < nrows; r++)
+ if ( m_rowHeights[r] == -1 )
{
- int i = r * ncols + c;
- if (i < nitems)
+ // this row is entirely hidden, skip it
+ for ( int c = 0; c < ncols; c++ )
{
- wxSizerItemList::compatibility_iterator node = m_children.Item( i );
+ if ( i == end )
+ return;
+
+ ++i;
+ }
- wxASSERT_MSG( node, _T("Failed to find node") );
+ continue;
+ }
- int w = wxMax( 0, wxMin( m_colWidths[c], sz.x - x ) );
- int h = wxMax( 0, wxMin( m_rowHeights[r], sz.y - y ) );
+ const int hrow = m_rowHeights[r];
+ int h = sz.y - y; // max remaining height, don't overflow it
+ if ( hrow < h )
+ h = hrow;
- SetItemBounds( node->GetData(), x, y, w, h);
- }
- if (m_rowHeights[r] != -1)
- y = y + m_rowHeights[r] + m_vgap;
+ int x = 0;
+ for ( int c = 0; c < ncols && i != end; c++, ++i )
+ {
+ const int wcol = m_colWidths[c];
+
+ if ( wcol == -1 )
+ continue;
+
+ int w = sz.x - x; // max possible value, ensure we don't overflow
+ if ( wcol < w )
+ w = wcol;
+
+ SetItemBounds(*i, pt.x + x, pt.y + y, w, h);
+
+ x += wcol + m_hgap;
+ }
+
+ if ( i == end )
+ return;
+
+ y += hrow + m_vgap;
+ }
+}
+
+// helper function used in CalcMin() to sum up the sizes of non-hidden items
+static int SumArraySizes(const wxArrayInt& sizes, int gap)
+{
+ // Sum total minimum size, including gaps between rows/columns.
+ // -1 is used as a magic number meaning empty row/column.
+ int total = 0;
+
+ const size_t count = sizes.size();
+ for ( size_t n = 0; n < count; n++ )
+ {
+ if ( sizes[n] != -1 )
+ {
+ if ( total )
+ total += gap; // separate from the previous column
+
+ total += sizes[n];
+ }
+ }
+
+ return total;
+}
+
+void wxFlexGridSizer::FindWidthsAndHeights(int nrows, int ncols)
+{
+ // We have to recalculate the sizes in case the item minimum size has
+ // changed since the previous layout, or the item has been hidden using
+ // wxSizer::Show(). If all the items in a row/column are hidden, the final
+ // dimension of the row/column will be -1, indicating that the column
+ // itself is hidden.
+ m_rowHeights.assign(nrows, -1);
+ m_colWidths.assign(ncols, -1);
+
+ // n is the index of the item in left-to-right top-to-bottom order
+ size_t n = 0;
+ for ( wxSizerItemList::iterator i = m_children.begin();
+ i != m_children.end();
+ ++i, ++n )
+ {
+ wxSizerItem * const item = *i;
+ if ( item->IsShown() )
+ {
+ // NOTE: Not doing the calculation here, this is just
+ // for finding max values.
+ const wxSize sz(item->GetMinSizeWithBorder());
+
+ const int row = n / ncols;
+ const int col = n % ncols;
+
+ if ( sz.y > m_rowHeights[row] )
+ m_rowHeights[row] = sz.y;
+ if ( sz.x > m_colWidths[col] )
+ m_colWidths[col] = sz.x;
}
- if (m_colWidths[c] != -1)
- x = x + m_colWidths[c] + m_hgap;
}
+
+ AdjustForFlexDirection();
+
+ m_calculatedMinSize = wxSize(SumArraySizes(m_colWidths, m_hgap),
+ SumArraySizes(m_rowHeights, m_vgap));
}
wxSize wxFlexGridSizer::CalcMin()
{
- int nrows,
- ncols;
- size_t i, s;
+ int nrows,
+ ncols;
// Number of rows/columns can change as items are added or removed.
if ( !CalcRowsCols(nrows, ncols) )
return wxSize();
- m_rowHeights.SetCount(nrows);
- m_colWidths.SetCount(ncols);
- // We have to recalcuate the sizes in case the item minimum size has
+ // 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.
- for( s = m_rowHeights.GetCount(), i = 0; i < s; ++i )
- m_rowHeights[ i ] = -1;
- for( s = m_colWidths.GetCount(), i = 0; i < s; ++i )
- m_colWidths[ i ] = -1;
+ m_rowHeights.assign(nrows, -1);
+ m_colWidths.assign(ncols, -1);
- wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
-
- i = 0;
- while (node)
+ for ( wxSizerItemList::iterator i = m_children.begin();
+ i != m_children.end();
+ ++i)
{
- wxSizerItem *item = node->GetData();
+ wxSizerItem * const item = *i;
if ( item->IsShown() )
{
- wxSize sz( item->CalcMin() );
- int row = i / ncols;
- int col = i % ncols;
-
- m_rowHeights[ row ] = wxMax( wxMax( 0, sz.y ), m_rowHeights[ row ] );
- m_colWidths[ col ] = wxMax( wxMax( 0, sz.x ), m_colWidths[ col ] );
+ item->CalcMin();
}
-
- node = node->GetNext();
- i++;
}
- AdjustForFlexDirection();
+ // 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);
- // Sum total minimum size, including gaps between rows/columns.
- // -1 is used as a magic number meaning empty column.
- int width = 0;
- for (int col = 0; col < ncols; col++)
- if ( m_colWidths[ col ] != -1 )
- width += m_colWidths[ col ] + m_hgap;
- if (width > 0)
- width -= m_hgap;
-
- int height = 0;
- for (int row = 0; row < nrows; row++)
- if ( m_rowHeights[ row ] != -1 )
- height += m_rowHeights[ row ] + m_vgap;
- if (height > 0)
- height -= m_vgap;
-
- m_calculatedMinSize = wxSize( width, height );
return m_calculatedMinSize;
}
}
}
+// helper of AdjustForGrowables() which is called for rows/columns separately
+//
+// parameters:
+// delta: the extra space, we do nothing unless it's positive
+// growable: indices or growable rows/cols in sizes array
+// sizes: the height/widths of rows/cols to adjust
+// proportions: proportions of the growable rows/cols or NULL if they all
+// should be assumed to have proportion of 1
+static void
+DoAdjustForGrowables(int delta,
+ const wxArrayInt& growable,
+ wxArrayInt& sizes,
+ const wxArrayInt *proportions)
+{
+ if ( delta <= 0 )
+ return;
+
+ // total sum of proportions of all non-hidden rows
+ int sum_proportions = 0;
+
+ // number of currently shown growable rows
+ int num = 0;
+
+ const int max_idx = sizes.size();
-void wxFlexGridSizer::AdjustForGrowables(const wxSize& sz, const wxSize& minsz,
- int nrows, int ncols)
+ const size_t count = growable.size();
+ size_t idx;
+ for ( idx = 0; idx < count; idx++ )
+ {
+ // Since the number of rows/columns can change as items are
+ // inserted/deleted, we need to verify at runtime that the
+ // requested growable rows/columns are still valid.
+ if ( growable[idx] >= max_idx )
+ continue;
+
+ // If all items in a row/column are hidden, that row/column will
+ // have a dimension of -1. This causes the row/column to be
+ // hidden completely.
+ if ( sizes[growable[idx]] == -1 )
+ continue;
+
+ if ( proportions )
+ sum_proportions += (*proportions)[idx];
+
+ num++;
+ }
+
+ if ( !num )
+ return;
+
+ // the remaining extra free space, adjusted during each iteration
+ for ( idx = 0; idx < count; idx++ )
+ {
+ if ( growable[idx] >= max_idx )
+ continue;
+
+ if ( sizes[ growable[idx] ] == -1 )
+ continue;
+
+ int cur_delta;
+ if ( sum_proportions == 0 )
+ {
+ // no growable rows -- divide extra space evenly among all
+ cur_delta = delta/num;
+ num--;
+ }
+ else // allocate extra space proportionally
+ {
+ const int cur_prop = (*proportions)[idx];
+ cur_delta = (delta*cur_prop)/sum_proportions;
+ sum_proportions -= cur_prop;
+ }
+
+ sizes[growable[idx]] += cur_delta;
+ delta -= cur_delta;
+ }
+}
+
+void wxFlexGridSizer::AdjustForGrowables(const wxSize& sz)
{
- // what to do with the rows? by default, resize them proportionally
- if ( sz.y > minsz.y && ( (m_flexDirection & wxVERTICAL) || (m_growMode == wxFLEX_GROWMODE_SPECIFIED) ) )
+#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 )
{
- int sum_proportions = 0;
- int growable_space = 0;
- int num = 0;
- size_t idx;
- for (idx = 0; idx < m_growableRows.GetCount(); idx++)
+ if ( !m_rows )
{
- // Since the number of rows/columns can change as items are
- // inserted/deleted, we need to verify at runtime that the
- // requested growable rows/columns are still valid.
- if (m_growableRows[idx] >= nrows)
- continue;
+ int nrows = CalcRows();
- // If all items in a row/column are hidden, that row/column will
- // have a dimension of -1. This causes the row/column to be
- // hidden completely.
- if (m_rowHeights[ m_growableRows[idx] ] == -1)
- continue;
- sum_proportions += m_growableRowsProportions[idx];
- growable_space += m_rowHeights[ m_growableRows[idx] ];
- num++;
+ for ( size_t n = 0; n < m_growableRows.size(); n++ )
+ {
+ wxASSERT_MSG( m_growableRows[n] < nrows,
+ "invalid growable row index" );
+ }
}
- if (num > 0)
+ if ( !m_cols )
{
- for (idx = 0; idx < m_growableRows.GetCount(); idx++)
+ int ncols = CalcCols();
+
+ for ( size_t n = 0; n < m_growableCols.size(); n++ )
{
- if (m_growableRows[idx] >= nrows )
- continue;
- if (m_rowHeights[ m_growableRows[idx] ] != -1)
- {
- int delta = (sz.y - minsz.y);
- if (sum_proportions == 0)
- delta = (delta/num) + m_rowHeights[ m_growableRows[idx] ];
- else
- delta = ((delta+growable_space)*m_growableRowsProportions[idx]) / sum_proportions;
- m_rowHeights[ m_growableRows[idx] ] = delta;
- }
+ wxASSERT_MSG( m_growableCols[n] < ncols,
+ "invalid growable column index" );
}
}
}
- else if ( (m_growMode == wxFLEX_GROWMODE_ALL) && (sz.y > minsz.y) )
- {
- // rounding problem?
- for ( int row = 0; row < nrows; ++row )
- m_rowHeights[ row ] = sz.y / nrows;
- }
+#endif // wxDEBUG_LEVEL
+
- // the same logic as above but for the columns
- if ( sz.x > minsz.x && ( (m_flexDirection & wxHORIZONTAL) || (m_growMode == wxFLEX_GROWMODE_SPECIFIED) ) )
+ if ( (m_flexDirection & wxHORIZONTAL) || (m_growMode != wxFLEX_GROWMODE_NONE) )
{
- int sum_proportions = 0;
- int growable_space = 0;
- int num = 0;
- size_t idx;
- for (idx = 0; idx < m_growableCols.GetCount(); idx++)
+ DoAdjustForGrowables
+ (
+ 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;
+
+ // Iterate over all items and inform about column width
+ const int ncols = GetEffectiveColsCount();
+ int col = 0;
+ for ( wxSizerItemList::iterator i = m_children.begin();
+ i != m_children.end();
+ ++i )
{
- // Since the number of rows/columns can change as items are
- // inserted/deleted, we need to verify at runtime that the
- // requested growable rows/columns are still valid.
- if (m_growableCols[idx] >= ncols)
- continue;
-
- // If all items in a row/column are hidden, that row/column will
- // have a dimension of -1. This causes the column to be hidden
- // completely.
- if (m_colWidths[ m_growableCols[idx] ] == -1)
- continue;
- sum_proportions += m_growableColsProportions[idx];
- growable_space += m_colWidths[ m_growableCols[idx] ];
- num++;
+ didAdjustMinSize |= (*i)->InformFirstDirection(wxHORIZONTAL, m_colWidths[col], sz.y - m_calculatedMinSize.y);
+ if ( ++col == ncols )
+ col = 0;
}
- if (num > 0)
+ // Only redo if info was actually used
+ if( didAdjustMinSize )
{
- for (idx = 0; idx < m_growableCols.GetCount(); idx++)
- {
- if (m_growableCols[idx] >= ncols )
- continue;
- if (m_colWidths[ m_growableCols[idx] ] != -1)
- {
- int delta = (sz.x - minsz.x);
- if (sum_proportions == 0)
- delta = (delta/num) + m_colWidths[ m_growableCols[idx] ];
- else
- delta = ((delta+growable_space)*m_growableColsProportions[idx])/sum_proportions;
- m_colWidths[ m_growableCols[idx] ] = delta;
- }
- }
+ DoAdjustForGrowables
+ (
+ sz.x - m_calculatedMinSize.x,
+ m_growableCols,
+ m_colWidths,
+ m_growMode == wxFLEX_GROWMODE_SPECIFIED ? &m_growableColsProportions
+ : NULL
+ );
}
}
- else if ( (m_growMode == wxFLEX_GROWMODE_ALL) && (sz.x > minsz.x) )
+
+ if ( (m_flexDirection & wxVERTICAL) || (m_growMode != wxFLEX_GROWMODE_NONE) )
{
- for ( int col=0; col < ncols; ++col )
- m_colWidths[ col ] = sz.x / ncols;
+ // 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
+ );
}
}
+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 );
}
}
}
- 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)
- const int delta = SizeInMajorDir(m_size) - SizeInMajorDir(m_minSize);
+ int delta = totalMajorSize - GetSizeInMajorDir(m_minSize);
- // the position at which we put the next child
- wxPoint pt(m_position);
+ // declare loop variables used below:
+ wxSizerItemList::const_iterator i; // iterator in m_children list
+ unsigned n = 0; // item index in majorSizes array
- const wxCoord totalMinorSize = SizeInMinorDir(m_size);
- for ( wxSizerItemList::const_iterator 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;
if ( !item->IsShown() )
continue;
- const wxSize sizeThis(item->GetMinSizeWithBorder());
+ 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;
+ }
+ minMajorSize += GetSizeInMajorDir(item->GetMinSizeWithBorder());
+ }
+
+ // update our min size have changed
+ SizeInMajorDir(m_minSize) = minMajorSize;
+
+
+ // space and sum of proportions for the remaining items, both may change
+ // below
+ wxCoord remaining = totalMajorSize;
+ int totalProportion = m_totalProportion;
+ // size of the (visible) items in major direction, -1 means "not fixed yet"
+ wxVector<int> majorSizes(GetItemCount(), wxDefaultCoord);
- // adjust the size in the major direction using the proportion
- wxCoord majorSize = SizeInMajorDir(sizeThis);
- if ( item->GetProportion() )
+
+ // 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 )
+ {
+ // 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 )
{
- // as at least one visible item has non-zero proportion the total
- // proportion must be non zero
- majorSize += (delta * item->GetProportion()) / m_totalProportion;
+ wxSizerItem * const item = *i;
+
+ if ( !item->IsShown() )
+ continue;
+
+ // 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;
+
+ 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 )
+ {
+ // 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 = SizeInMinorDir(sizeThis);
+ 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;
}
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();
+ if ( const int propThis = item->GetProportion() )
+ {
+ float minSizeToProp = GetSizeInMajorDir(sizeMinThis);
+ minSizeToProp /= propThis;
- SizeInMajorDir(m_minSize) += SizeInMajorDir(sizeMinThis);
- if ( SizeInMinorDir(sizeMinThis) > SizeInMinorDir(m_minSize) )
- SizeInMinorDir(m_minSize) = SizeInMinorDir(sizeMinThis);
+ if ( minSizeToProp > maxMinSizeToProp )
+ maxMinSizeToProp = minSizeToProp;
- m_totalProportion += item->GetProportion();
+ 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);
}
+ // 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;
+#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;
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;
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
#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