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sizer.cpp
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2002-11-09
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/////////////////////////////////////////////////////////////////////////////
// Name: sizer.cpp
// Purpose: provide new wxSizer class for layout
// Author: Robert Roebling and Robin Dunn
// Modified by: Ron Lee
// Created:
// RCS-ID: $Id: sizer.cpp,v 1.46.2.4 2002/11/09 13:29:22 RL Exp $
// Copyright: (c) Robin Dunn, Dirk Holtwick and Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "sizer.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "wx/sizer.h"
#include "wx/utils.h"
#include "wx/statbox.h"
#include "wx/notebook.h"
//---------------------------------------------------------------------------
IMPLEMENT_ABSTRACT_CLASS(wxSizerItem, wxObject)
IMPLEMENT_ABSTRACT_CLASS(wxSizer, wxObject)
IMPLEMENT_ABSTRACT_CLASS(wxGridSizer, wxSizer)
IMPLEMENT_ABSTRACT_CLASS(wxFlexGridSizer, wxGridSizer)
IMPLEMENT_ABSTRACT_CLASS(wxBoxSizer, wxSizer)
#if wxUSE_STATBOX
IMPLEMENT_ABSTRACT_CLASS(wxStaticBoxSizer, wxBoxSizer)
#endif
#if wxUSE_NOTEBOOK
IMPLEMENT_ABSTRACT_CLASS(wxNotebookSizer, wxSizer)
#endif
//---------------------------------------------------------------------------
// wxSizerItem
//---------------------------------------------------------------------------
wxSizerItem::wxSizerItem( int width, int height, int option, int flag, int border, wxObject* userData )
{
m_window = (wxWindow *) NULL;
m_sizer = (wxSizer *) NULL;
m_option = option;
m_border = border;
m_flag = flag;
m_show = TRUE; // Cannot be changed
m_userData = userData;
// minimal size is the initial size
m_minSize.x = width;
m_minSize.y = height;
SetRatio(width, height);
// size is set directly
m_size = m_minSize;
}
wxSizerItem::wxSizerItem( wxWindow *window, int option, int flag, int border, wxObject* userData )
{
m_window = window;
m_sizer = (wxSizer *) NULL;
m_option = option;
m_border = border;
m_flag = flag;
m_show = TRUE;
m_userData = userData;
// minimal size is the initial size
m_minSize = window->GetSize();
// aspect ratio calculated from initial size
SetRatio(m_minSize);
// size is calculated later
// m_size = ...
}
wxSizerItem::wxSizerItem( wxSizer *sizer, int option, int flag, int border, wxObject* userData )
{
m_window = (wxWindow *) NULL;
m_sizer = sizer;
m_option = option;
m_border = border;
m_flag = flag;
m_show = TRUE;
m_userData = userData;
// minimal size is calculated later
// m_minSize = ...
m_ratio = 0;
// size is calculated later
// m_size = ...
}
wxSizerItem::~wxSizerItem()
{
if (m_userData)
delete m_userData;
if (m_sizer)
delete m_sizer;
}
wxSize wxSizerItem::GetSize()
{
wxSize ret;
if (IsSizer())
ret = m_sizer->GetSize();
else
if (IsWindow())
ret = m_window->GetSize();
else ret = m_size;
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;
}
wxSize wxSizerItem::CalcMin()
{
wxSize ret;
if (IsSizer())
{
ret = m_sizer->GetMinSize();
// if we have to preserve aspect ratio _AND_ this is
// the first-time calculation, consider ret to be initial size
if ((m_flag & wxSHAPED) && !m_ratio)
SetRatio(ret);
}
else
{
if ( IsWindow() && (m_flag & wxADJUST_MINSIZE) )
{
// By user request, keep the minimal size for this item
// in sync with the largest of BestSize and any user supplied
// minimum size hint. Useful in cases where the item is
// changeable -- static text labels, etc.
m_minSize = m_window->GetAdjustedBestSize();
}
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;
}
void wxSizerItem::SetDimension( wxPoint pos, wxSize size )
{
if (m_flag & wxSHAPED)
{
// adjust aspect ratio
int rwidth = (int) (size.y * m_ratio);
if (rwidth > size.x)
{
// fit horizontally
int rheight = (int) (size.x / m_ratio);
// add vertical space
if (m_flag & wxALIGN_CENTER_VERTICAL)
pos.y += (size.y - rheight) / 2;
else if (m_flag & wxALIGN_BOTTOM)
pos.y += (size.y - rheight);
// use reduced dimensions
size.y =rheight;
}
else if (rwidth < size.x)
{
// add horizontal space
if (m_flag & wxALIGN_CENTER_HORIZONTAL)
pos.x += (size.x - rwidth) / 2;
else if (m_flag & wxALIGN_RIGHT)
pos.x += (size.x - rwidth);
size.x = rwidth;
}
}
// This is what GetPosition() returns. Since we calculate
// borders afterwards, GetPosition() will be the left/top
// corner of the surrounding border.
m_pos = pos;
if (m_flag & wxWEST)
{
pos.x += m_border;
size.x -= m_border;
}
if (m_flag & wxEAST)
{
size.x -= m_border;
}
if (m_flag & wxNORTH)
{
pos.y += m_border;
size.y -= m_border;
}
if (m_flag & wxSOUTH)
{
size.y -= m_border;
}
if (IsSizer())
m_sizer->SetDimension( pos.x, pos.y, size.x, size.y );
if (IsWindow())
m_window->SetSize( pos.x, pos.y, size.x, size.y, wxSIZE_ALLOW_MINUS_ONE );
m_size = size;
}
void wxSizerItem::DeleteWindows()
{
if (m_window)
m_window->Destroy();
if (m_sizer)
m_sizer->DeleteWindows();
}
bool wxSizerItem::IsWindow()
{
return (m_window != NULL);
}
bool wxSizerItem::IsSizer()
{
return (m_sizer != NULL);
}
bool wxSizerItem::IsSpacer()
{
return (m_window == NULL) && (m_sizer == NULL);
}
//---------------------------------------------------------------------------
// wxSizer
//---------------------------------------------------------------------------
wxSizer::wxSizer()
{
m_children.DeleteContents( TRUE );
m_minSize.x = 0;
m_minSize.y = 0;
}
wxSizer::~wxSizer()
{
Clear();
}
void wxSizer::Add( wxWindow *window, int option, int flag, int border, wxObject* userData )
{
m_children.Append( new wxSizerItem( window, option, flag, border, userData ) );
window->SetContainingSizer(this);
}
void wxSizer::Add( wxSizer *sizer, int option, int flag, int border, wxObject* userData )
{
m_children.Append( new wxSizerItem( sizer, option, flag, border, userData ) );
}
void wxSizer::Add( int width, int height, int option, int flag, int border, wxObject* userData )
{
m_children.Append( new wxSizerItem( width, height, option, flag, border, userData ) );
}
void wxSizer::Prepend( wxWindow *window, int option, int flag, int border, wxObject* userData )
{
m_children.Insert( new wxSizerItem( window, option, flag, border, userData ) );
window->SetContainingSizer(this);
}
void wxSizer::Prepend( wxSizer *sizer, int option, int flag, int border, wxObject* userData )
{
m_children.Insert( new wxSizerItem( sizer, option, flag, border, userData ) );
}
void wxSizer::Prepend( int width, int height, int option, int flag, int border, wxObject* userData )
{
m_children.Insert( new wxSizerItem( width, height, option, flag, border, userData ) );
}
void wxSizer::Insert( int before, wxWindow *window, int option, int flag, int border, wxObject* userData )
{
m_children.Insert( before, new wxSizerItem( window, option, flag, border, userData ) );
window->SetContainingSizer(this);
}
void wxSizer::Insert( int before, wxSizer *sizer, int option, int flag, int border, wxObject* userData )
{
m_children.Insert( before, new wxSizerItem( sizer, option, flag, border, userData ) );
}
void wxSizer::Insert( int before, int width, int height, int option, int flag, int border, wxObject* userData )
{
m_children.Insert( before, new wxSizerItem( width, height, option, flag, border, userData ) );
}
bool wxSizer::Remove( wxWindow *window )
{
wxASSERT( window );
wxNode *node = m_children.First();
while (node)
{
wxSizerItem *item = (wxSizerItem*)node->Data();
if (item->GetWindow() == window)
{
item->GetWindow()->SetContainingSizer(NULL);
m_children.DeleteNode( node );
return TRUE;
}
node = node->Next();
}
return FALSE;
}
bool wxSizer::Remove( wxSizer *sizer )
{
wxASSERT( sizer );
wxNode *node = m_children.First();
while (node)
{
wxSizerItem *item = (wxSizerItem*)node->Data();
if (item->GetSizer() == sizer)
{
m_children.DeleteNode( node );
return TRUE;
}
node = node->Next();
}
return FALSE;
}
bool wxSizer::Remove( int pos )
{
if ((size_t)pos >= m_children.GetCount())
return FALSE;
wxNode *node = m_children.Nth( pos );
if (!node) return FALSE;
m_children.DeleteNode( node );
return TRUE;
}
void wxSizer::Clear( bool delete_windows )
{
// First clear the ContainingSizer pointers
wxNode *node = m_children.First();
while (node)
{
wxSizerItem *item = (wxSizerItem*)node->Data();
if (item->IsWindow())
item->GetWindow()->SetContainingSizer(NULL);
node = node->Next();
}
// Destroy the windows if needed
if (delete_windows)
DeleteWindows();
// Now empty the list
m_children.Clear();
}
void wxSizer::DeleteWindows()
{
wxNode *node = m_children.First();
while (node)
{
wxSizerItem *item = (wxSizerItem*)node->Data();
item->DeleteWindows();
node = node->Next();
}
}
wxSize wxSizer::Fit( wxWindow *window )
{
wxSize size;
if (window->IsTopLevel())
size = FitSize( window );
else
size = GetMinWindowSize( window );
window->SetSize( size );
return size;
}
void wxSizer::FitInside( wxWindow *window )
{
wxSize size;
if (window->IsTopLevel())
size = VirtualFitSize( window );
else
size = GetMinClientSize( window );
window->SetVirtualSize( size );
}
void wxSizer::Layout()
{
CalcMin();
RecalcSizes();
}
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 );
window->SetSizeHints( size.x,
size.y,
window->GetMaxWidth(),
window->GetMaxHeight() );
}
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 )
{
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 );
}
// Return a window size that will fit within the screens dimensions
wxSize wxSizer::FitSize( wxWindow *window )
{
wxSize size = GetMinWindowSize( window );
wxSize sizeMax = GetMaxWindowSize( window );
// Limit the size if sizeMax != wxDefaultSize
if ( size.x > sizeMax.x && sizeMax.x != -1 )
size.x = sizeMax.x;
if ( size.y > sizeMax.y && sizeMax.y != -1 )
size.y = sizeMax.y;
return size;
}
wxSize wxSizer::GetMaxClientSize( wxWindow *window )
{
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;
}
wxSize wxSizer::GetMinClientSize( wxWindow *WXUNUSED(window) )
{
return GetMinSize(); // Already returns client size.
}
wxSize wxSizer::VirtualFitSize( wxWindow *window )
{
wxSize size = GetMinClientSize( window );
wxSize sizeMax = GetMaxClientSize( window );
// Limit the size if sizeMax != wxDefaultSize
if ( size.x > sizeMax.x && sizeMax.x != -1 )
size.x = sizeMax.x;
if ( size.y > sizeMax.y && sizeMax.y != -1 )
size.y = sizeMax.y;
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() );
if (ret.x < m_minSize.x) ret.x = m_minSize.x;
if (ret.y < m_minSize.y) ret.y = m_minSize.y;
return ret;
}
void wxSizer::DoSetMinSize( int width, int height )
{
m_minSize.x = width;
m_minSize.y = height;
}
bool wxSizer::DoSetItemMinSize( wxWindow *window, int width, int height )
{
wxASSERT( window );
wxNode *node = m_children.First();
while (node)
{
wxSizerItem *item = (wxSizerItem*)node->Data();
if (item->GetWindow() == window)
{
item->SetInitSize( width, height );
return TRUE;
}
node = node->Next();
}
node = m_children.First();
while (node)
{
wxSizerItem *item = (wxSizerItem*)node->Data();
if (item->GetSizer())
{
// It's a sizer, so lets search recursively.
if (item->GetSizer()->DoSetItemMinSize( window, width, height ))
{
// A child sizer found the requested windw, exit.
return TRUE;
}
}
node = node->Next();
}
return FALSE;
}
bool wxSizer::DoSetItemMinSize( wxSizer *sizer, int width, int height )
{
wxASSERT( sizer );
wxNode *node = m_children.First();
while (node)
{
wxSizerItem *item = (wxSizerItem*)node->Data();
if (item->GetSizer() == sizer)
{
item->GetSizer()->DoSetMinSize( width, height );
return TRUE;
}
node = node->Next();
}
node = m_children.First();
while (node)
{
wxSizerItem *item = (wxSizerItem*)node->Data();
if (item->GetSizer())
{
// It's a sizer, so lets search recursively.
if (item->GetSizer()->DoSetItemMinSize( sizer, width, height ))
{
// A child sizer found the requested windw, exit.
return TRUE;
}
}
node = node->Next();
}
return FALSE;
}
bool wxSizer::DoSetItemMinSize( int pos, int width, int height )
{
wxNode *node = m_children.Nth( pos );
if (!node) return FALSE;
wxSizerItem *item = (wxSizerItem*) node->Data();
if (item->GetSizer())
{
// Sizers contains the minimal size in them, if not calculated ...
item->GetSizer()->DoSetMinSize( width, height );
}
else
{
// ... but the minimal size of spacers and windows in stored in them
item->SetInitSize( width, height );
}
return TRUE;
}
void wxSizer::Show(wxWindow *window, bool show)
{
wxNode *node = m_children.GetFirst();
while (node)
{
wxSizerItem *item = (wxSizerItem*) node->Data();
if (item->IsWindow() && item->GetWindow() == window)
{
item->Show(show);
window->Show(show);
return;
}
node = node->Next();
}
}
void wxSizer::Show(wxSizer *sizer, bool show)
{
wxNode *node = m_children.GetFirst();
while (node)
{
wxSizerItem *item = (wxSizerItem*) node->Data();
if (item->IsSizer() && item->GetSizer() == sizer)
{
item->Show(show);
sizer->ShowItems(show);
return;
}
node = node->Next();
}
}
void wxSizer::ShowItems (bool show)
{
wxNode *node = m_children.GetFirst();
while (node)
{
wxSizerItem *item = (wxSizerItem*) node->Data();
if (item->IsWindow())
item->GetWindow()->Show (show);
else if (item->IsSizer())
item->GetSizer()->ShowItems (show);
node = node->Next();
}
}
bool wxSizer::IsShown (wxWindow *window)
{
wxNode *node = m_children.GetFirst();
while (node)
{
wxSizerItem *item = (wxSizerItem*) node->Data();
if (item->IsWindow() && item->GetWindow() == window)
{
return item->IsShown();
}
node = node->Next();
}
return FALSE;
}
bool wxSizer::IsShown (wxSizer *sizer)
{
wxNode *node = m_children.GetFirst();
while (node)
{
wxSizerItem *item = (wxSizerItem*) node->Data();
if (item->IsSizer() && item->GetSizer() == sizer)
{
return item->IsShown();
}
node = node->Next();
}
return FALSE;
}
//---------------------------------------------------------------------------
// wxGridSizer
//---------------------------------------------------------------------------
wxGridSizer::wxGridSizer( int rows, int cols, int vgap, int hgap )
{
m_rows = rows;
m_cols = cols;
m_vgap = vgap;
m_hgap = hgap;
}
wxGridSizer::wxGridSizer( int cols, int vgap, int hgap )
{
m_rows = 0;
m_cols = cols;
m_vgap = vgap;
m_hgap = hgap;
}
int wxGridSizer::CalcRowsCols(int& nrows, int& ncols) const
{
int nitems = m_children.GetCount();
if ( nitems)
{
if ( m_cols )
{
ncols = m_cols;
nrows = (nitems + m_cols - 1) / m_cols;
}
else if ( m_rows )
{
ncols = (nitems + m_rows - 1) / m_rows;
nrows = m_rows;
}
else // 0 columns, 0 rows?
{
wxFAIL_MSG( _T("grid sizer must have either rows or columns fixed") );
nrows = ncols = 0;
}
}
return nitems;
}
void wxGridSizer::RecalcSizes()
{
int nitems, nrows, ncols;
if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
return;
wxSize sz( GetSize() );
wxPoint pt( GetPosition() );
int w = (sz.x - (ncols - 1) * m_hgap) / ncols;
int h = (sz.y - (nrows - 1) * m_vgap) / nrows;
int x = pt.x;
for (int c = 0; c < ncols; c++)
{
int y = pt.y;
for (int r = 0; r < nrows; r++)
{
int i = r * ncols + c;
if (i < nitems)
{
wxNode *node = m_children.Nth( i );
wxASSERT( node );
SetItemBounds( (wxSizerItem*) node->Data(), x, y, w, h);
}
y = y + h + m_vgap;
}
x = x + w + m_hgap;
}
}
wxSize wxGridSizer::CalcMin()
{
int nitems, nrows, ncols;
if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
return wxSize(10, 10);
// Find the max width and height for any component
int w = 0;
int h = 0;
wxNode *node = m_children.First();
while (node)
{
wxSizerItem *item = (wxSizerItem*)node->Data();
wxSize sz( item->CalcMin() );
w = wxMax( w, sz.x );
h = wxMax( h, sz.y );
node = node->Next();
}
return wxSize(ncols * w + (ncols-1) * m_hgap,
nrows * h + (nrows-1) * m_vgap);
}
void wxGridSizer::SetItemBounds( wxSizerItem *item, int x, int y, int w, int h )
{
wxPoint pt( x,y );
wxSize sz( item->CalcMin() );
int flag = item->GetFlag();
if ((flag & wxEXPAND) || (flag & wxSHAPED))
{
sz = wxSize(w, h);
}
else
{
if (flag & wxALIGN_CENTER_HORIZONTAL)
{
pt.x = x + (w - sz.x) / 2;
}
else if (flag & wxALIGN_RIGHT)
{
pt.x = x + (w - sz.x);
}
if (flag & wxALIGN_CENTER_VERTICAL)
{
pt.y = y + (h - sz.y) / 2;
}
else if (flag & wxALIGN_BOTTOM)
{
pt.y = y + (h - sz.y);
}
}
item->SetDimension(pt, sz);
}
//---------------------------------------------------------------------------
// wxFlexGridSizer
//---------------------------------------------------------------------------
wxFlexGridSizer::wxFlexGridSizer( int rows, int cols, int vgap, int hgap )
: wxGridSizer( rows, cols, vgap, hgap )
{
m_rowHeights = (int*) NULL;
m_colWidths = (int*) NULL;
}
wxFlexGridSizer::wxFlexGridSizer( int cols, int vgap, int hgap )
: wxGridSizer( cols, vgap, hgap )
{
m_rowHeights = (int*) NULL;
m_colWidths = (int*) NULL;
}
wxFlexGridSizer::~wxFlexGridSizer()
{
if (m_rowHeights)
delete[] m_rowHeights;
if (m_colWidths)
delete[] m_colWidths;
}
void wxFlexGridSizer::CreateArrays()
{
if (m_rowHeights)
delete[] m_rowHeights;
if (m_colWidths)
delete[] m_colWidths;
int nitems, nrows, ncols;
if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
{
m_rowHeights =
m_colWidths = NULL;
}
m_rowHeights = new int[nrows];
m_colWidths = new int[ncols];
for (int col = 0; col < ncols; col++)
m_colWidths[ col ] = 0;
for (int row = 0; row < nrows; row++)
m_rowHeights[ row ] = 0;
}
void wxFlexGridSizer::RecalcSizes()
{
int nitems, nrows, ncols;
if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
return;
wxSize sz( GetSize() );
wxSize minsz( CalcMin() );
wxPoint pt( GetPosition() );
int delta;
size_t idx,num;
wxArrayInt temp;
// Transfer only those rows into temp which exist in the sizer
// ignoring the superflouus ones. This prevents a segfault when
// calling AddGrowableRow( 3 ) if the sizer only has 2 rows.
for (idx = 0; idx < m_growableRows.GetCount(); idx++)
if (m_growableRows[idx] < nrows)
temp.Add( m_growableRows[idx] );
num = temp.GetCount();
if ((num > 0) && (sz.y > minsz.y))
{
delta = (sz.y - minsz.y) / num;
for (idx = 0; idx < num; idx++)
m_rowHeights[ temp[idx] ] += delta;
}
temp.Empty();
// See above
for (idx = 0; idx < m_growableCols.GetCount(); idx++)
if (m_growableCols[idx] < ncols)
temp.Add( m_growableCols[idx] );
num = temp.GetCount();
if ((num > 0) && (sz.x > minsz.x))
{
delta = (sz.x - minsz.x) / num;
for (idx = 0; idx < num; idx++)
m_colWidths[ temp[idx] ] += delta;
}
sz = wxSize( pt.x + sz.x, pt.y + sz.y );
int x = pt.x;
for (int c = 0; c < ncols; c++)
{
int y = pt.y;
for (int r = 0; r < nrows; r++)
{
int i = r * ncols + c;
if (i < nitems)
{
wxNode *node = m_children.Nth( i );
wxASSERT( node );
int w = wxMax( 0, wxMin( m_colWidths[c], sz.x - x ) );
int h = wxMax( 0, wxMin( m_rowHeights[r], sz.y - y ) );
SetItemBounds( (wxSizerItem*) node->Data(), x, y, w, h);
}
y = y + m_rowHeights[r] + m_vgap;
}
x = x + m_colWidths[c] + m_hgap;
}
}
wxSize wxFlexGridSizer::CalcMin()
{
int nitems, nrows, ncols;
if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
return wxSize(10,10);
CreateArrays();
int i = 0;
wxNode *node = m_children.First();
while (node)
{
wxSizerItem *item = (wxSizerItem*)node->Data();
wxSize sz( item->CalcMin() );
int row = i / ncols;
int col = i % ncols;
m_rowHeights[ row ] = wxMax( sz.y, m_rowHeights[ row ] );
m_colWidths[ col ] = wxMax( sz.x, m_colWidths[ col ] );
node = node->Next();
i++;
}
int width = 0;
for (int col = 0; col < ncols; col++)
width += m_colWidths[ col ];
int height = 0;
for (int row = 0; row < nrows; row++)
height += m_rowHeights[ row ];
return wxSize( width + (ncols-1) * m_hgap,
height + (nrows-1) * m_vgap);
}
void wxFlexGridSizer::AddGrowableRow( size_t idx )
{
m_growableRows.Add( idx );
}
void wxFlexGridSizer::RemoveGrowableRow( size_t WXUNUSED(idx) )
{
}
void wxFlexGridSizer::AddGrowableCol( size_t idx )
{
m_growableCols.Add( idx );
}
void wxFlexGridSizer::RemoveGrowableCol( size_t WXUNUSED(idx) )
{
}
//---------------------------------------------------------------------------
// wxBoxSizer
//---------------------------------------------------------------------------
wxBoxSizer::wxBoxSizer( int orient )
{
m_orient = orient;
}
void wxBoxSizer::RecalcSizes()
{
if (m_children.GetCount() == 0)
return;
int delta = 0;
int extra = 0;
if (m_stretchable)
{
if (m_orient == wxHORIZONTAL)
{
delta = (m_size.x - m_fixedWidth) / m_stretchable;
extra = (m_size.x - m_fixedWidth) % m_stretchable;
}
else
{
delta = (m_size.y - m_fixedHeight) / m_stretchable;
extra = (m_size.y - m_fixedHeight) % m_stretchable;
}
}
wxPoint pt( m_position );
wxNode *node = m_children.GetFirst();
while (node)
{
wxSizerItem *item = (wxSizerItem*) node->Data();
if (item->IsShown())
{
int weight = 1;
if (item->GetOption())
weight = item->GetOption();
wxSize size( item->CalcMin() );
if (m_orient == wxVERTICAL)
{
wxCoord height = size.y;
if (item->GetOption())
{
height = (delta * weight) + extra;
extra = 0; // only the first item will get the remainder as extra size
}
wxPoint child_pos( pt );
wxSize child_size( wxSize( size.x, height) );
if (item->GetFlag() & (wxEXPAND | wxSHAPED))
child_size.x = m_size.x;
else if (item->GetFlag() & wxALIGN_RIGHT)
child_pos.x += m_size.x - size.x;
else if (item->GetFlag() & (wxCENTER | wxALIGN_CENTER_HORIZONTAL))
// XXX wxCENTER is added for backward compatibility;
// wxALIGN_CENTER should be used in new code
child_pos.x += (m_size.x - size.x) / 2;
item->SetDimension( child_pos, child_size );
pt.y += height;
}
else
{
wxCoord width = size.x;
if (item->GetOption())
{
width = (delta * weight) + extra;
extra = 0; // only the first item will get the remainder as extra size
}
wxPoint child_pos( pt );
wxSize child_size( wxSize(width, size.y) );
if (item->GetFlag() & (wxEXPAND | wxSHAPED))
child_size.y = m_size.y;
else if (item->GetFlag() & wxALIGN_BOTTOM)
child_pos.y += m_size.y - size.y;
else if (item->GetFlag() & (wxCENTER | wxALIGN_CENTER_VERTICAL))
// XXX wxCENTER is added for backward compatibility;
// wxALIGN_CENTER should be used in new code
child_pos.y += (m_size.y - size.y) / 2;
item->SetDimension( child_pos, child_size );
pt.x += width;
}
}
node = node->Next();
}
}
wxSize wxBoxSizer::CalcMin()
{
if (m_children.GetCount() == 0)
return wxSize(10,10);
m_stretchable = 0;
m_minWidth = 0;
m_minHeight = 0;
m_fixedWidth = 0;
m_fixedHeight = 0;
// Find how long each stretch unit needs to be
int stretchSize = 1;
wxNode *node = m_children.GetFirst();
while (node)
{
wxSizerItem *item = (wxSizerItem*) node->Data();
if (item->IsShown() && item->GetOption() != 0)
{
int stretch = item->GetOption();
wxSize size( item->CalcMin() );
int sizePerStretch;
// Integer division rounded up is (a + b - 1) / b
if (m_orient == wxHORIZONTAL)
sizePerStretch = ( size.x + stretch - 1 ) / stretch;
else
sizePerStretch = ( size.y + stretch - 1 ) / stretch;
if (sizePerStretch > stretchSize)
stretchSize = sizePerStretch;
}
node = node->Next();
}
// Calculate overall minimum size
node = m_children.GetFirst();
while (node)
{
wxSizerItem *item = (wxSizerItem*) node->Data();
if (item->IsShown())
{
m_stretchable += item->GetOption();
wxSize size( item->CalcMin() );
if (item->GetOption() != 0)
{
if (m_orient == wxHORIZONTAL)
size.x = stretchSize * item->GetOption();
else
size.y = stretchSize * item->GetOption();
}
if (m_orient == wxHORIZONTAL)
{
m_minWidth += size.x;
m_minHeight = wxMax( m_minHeight, size.y );
}
else
{
m_minHeight += size.y;
m_minWidth = wxMax( m_minWidth, size.x );
}
if (item->GetOption() == 0)
{
if (m_orient == wxVERTICAL)
{
m_fixedHeight += size.y;
m_fixedWidth = wxMax( m_fixedWidth, size.x );
}
else
{
m_fixedWidth += size.x;
m_fixedHeight = wxMax( m_fixedHeight, size.y );
}
}
}
node = node->Next();
}
return wxSize( m_minWidth, m_minHeight );
}
//---------------------------------------------------------------------------
// wxStaticBoxSizer
//---------------------------------------------------------------------------
#if wxUSE_STATBOX
wxStaticBoxSizer::wxStaticBoxSizer( wxStaticBox *box, int orient )
: wxBoxSizer( orient )
{
wxASSERT_MSG( box, wxT("wxStaticBoxSizer needs a static box") );
m_staticBox = box;
}
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
#ifdef __WXGTK__
if ( box->GetLabel().IsEmpty() )
*borderTop = 5;
else
#endif // __WXGTK__
*borderTop = 15;
(void)box;
*borderOther = 5;
}
void wxStaticBoxSizer::RecalcSizes()
{
int top_border, other_border;
GetStaticBoxBorders(m_staticBox, &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;
wxBoxSizer::RecalcSizes();
m_position = old_pos;
m_size = old_size;
}
wxSize wxStaticBoxSizer::CalcMin()
{
int top_border, other_border;
GetStaticBoxBorders(m_staticBox, &top_border, &other_border);
wxSize ret( wxBoxSizer::CalcMin() );
ret.x += 2*other_border;
ret.y += other_border + top_border;
return ret;
}
#endif // wxUSE_STATBOX
//---------------------------------------------------------------------------
// wxNotebookSizer
//---------------------------------------------------------------------------
#if wxUSE_NOTEBOOK
wxNotebookSizer::wxNotebookSizer( wxNotebook *nb )
{
wxASSERT_MSG( nb, wxT("wxNotebookSizer needs a notebook") );
m_notebook = nb;
}
void wxNotebookSizer::RecalcSizes()
{
m_notebook->SetSize( m_position.x, m_position.y, m_size.x, m_size.y );
}
wxSize wxNotebookSizer::CalcMin()
{
wxSize sizeBorder = m_notebook->CalcSizeFromPage(wxSize(0, 0));
sizeBorder.x += 5;
sizeBorder.y += 5;
if (m_notebook->GetChildren().GetCount() == 0)
{
return wxSize(sizeBorder.x + 10, sizeBorder.y + 10);
}
int maxX = 0;
int maxY = 0;
wxWindowList::Node *node = m_notebook->GetChildren().GetFirst();
while (node)
{
wxWindow *item = node->GetData();
wxSizer *itemsizer = item->GetSizer();
if (itemsizer)
{
wxSize subsize( itemsizer->CalcMin() );
if (subsize.x > maxX)
maxX = subsize.x;
if (subsize.y > maxY)
maxY = subsize.y;
}
node = node->GetNext();
}
return wxSize( maxX, maxY ) + sizeBorder;
}
#endif // wxUSE_NOTEBOOK
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