// Name: sizer.cpp
// Purpose: provide new wxSizer class for layout
// Author: Robert Roebling and Robin Dunn
-// Modified by:
+// Modified by: Ron Lee
// Created:
// RCS-ID: $Id$
// Copyright: (c) Robin Dunn, Dirk Holtwick and Robert Roebling
//---------------------------------------------------------------------------
-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);
-IMPLEMENT_ABSTRACT_CLASS(wxStaticBoxSizer, wxBoxSizer);
+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);
+IMPLEMENT_ABSTRACT_CLASS(wxNotebookSizer, wxSizer)
#endif
//---------------------------------------------------------------------------
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);
+ if ((m_flag & wxSHAPED) && !m_ratio)
+ SetRatio(ret);
}
-
-/*
- The minimum size of a window should be the
- initial size, as saved in m_minSize, not the
- current size.
-
else
- if (IsWindow())
- ret = m_window->GetSize();
-*/
- else ret = m_minSize;
+ {
+ if ( IsWindow() && (m_flag & wxADJUST_MINSIZE) )
+ {
+ // check if the best (minimal, in fact) window size hadn't changed
+ // by chance: this may happen for, e.g. static text if its label
+ // changed
+ wxSize size = m_window->GetBestSize();
+ if ( size.x > m_minSize.x )
+ m_minSize.x = size.x;
+ if ( size.y > m_minSize.y )
+ m_minSize.y = size.y;
+ }
+
+ ret = m_minSize;
+ }
if (m_flag & wxWEST)
ret.x += m_border;
void wxSizerItem::SetDimension( wxPoint pos, wxSize size )
{
- m_pos = pos;
-
- if (m_flag & wxWEST)
- {
- pos.x += m_border;
- size.x -= m_border;
- }
- if (m_flag & wxEAST)
+ if (m_flag & wxSHAPED)
{
- 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 (m_flag & wxSHAPED) {
// adjust aspect ratio
int rwidth = (int) (size.y * m_ratio);
- if (rwidth > size.x) {
+ if (rwidth > size.x)
+ {
// fit horizontally
int rheight = (int) (size.x / m_ratio);
// add vertical space
pos.y += (size.y - rheight);
// use reduced dimensions
size.y =rheight;
- } else if (rwidth < size.x) {
+ }
+ else if (rwidth < size.x)
+ {
// add horizontal space
if (m_flag & wxALIGN_CENTER_HORIZONTAL)
pos.x += (size.x - rwidth) / 2;
}
}
+ // 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 );
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);
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 )
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 )
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 )
wxSizerItem *item = (wxSizerItem*)node->Data();
if (item->GetWindow() == window)
{
+ item->GetWindow()->SetContainingSizer(NULL);
m_children.DeleteNode( node );
return TRUE;
}
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();
+ }
+}
+
void wxSizer::Fit( wxWindow *window )
{
- window->SetSize( GetMinWindowSize( window ) );
+ wxSize size;
+ if (window->IsTopLevel())
+ size = FitSize( window );
+ else
+ size = GetMinWindowSize( window );
+
+ //window->SetClientSize( size );
+ window->SetSize( size );
+}
+
+void wxSizer::FitInside( wxWindow *window )
+{
+ wxSize size;
+ if (window->IsTopLevel())
+ size = VirtualFitSize( window );
+ else
+ size = GetMinClientSize( window );
+
+ window->SetVirtualSize( size );
}
void wxSizer::Layout()
void wxSizer::SetSizeHints( wxWindow *window )
{
- wxSize size( GetMinWindowSize( window ) );
- window->SetSizeHints( size.x, size.y );
+ // Preserve the window's max size hints, but set the
+ // lower bound according to the sizer calculations.
+
+ Fit( window );
+ wxSize size( window->GetSize() );
+ 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 )
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 *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_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->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();
- int weight = 1;
- if (item->GetOption())
- weight = item->GetOption();
+ 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 * weight);
+ m_minWidth += size.x;
m_minHeight = wxMax( m_minHeight, size.y );
}
else
{
- m_minHeight += (size.y * weight);
+ m_minHeight += size.y;
m_minWidth = wxMax( m_minWidth, size.x );
}
- if (item->GetOption())
- {
- m_stretchable += weight;
- }
- else
+ if (item->GetOption() == 0)
{
if (m_orient == wxVERTICAL)
{
// wxStaticBoxSizer
//---------------------------------------------------------------------------
+#if wxUSE_STATBOX
+
wxStaticBoxSizer::wxStaticBoxSizer( wxStaticBox *box, int orient )
- : wxBoxSizer( 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()
{
- // this will have to be done platform by platform
- // as there is no way to guess the thickness of
- // a wxStaticBox border
- int top_border = 15;
- if (m_staticBox->GetLabel().IsEmpty()) top_border = 5;
- int other_border = 5;
+ 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 );
wxSize wxStaticBoxSizer::CalcMin()
{
- // This will have to be done platform by platform
- // as there is no way to guess the thickness of
- // a wxStaticBox border.
-
- int top_border = 15;
- if (m_staticBox->GetLabel().IsEmpty()) top_border = 5;
- int other_border = 5;
+ int top_border, other_border;
+ GetStaticBoxBorders(m_staticBox, &top_border, &other_border);
wxSize ret( wxBoxSizer::CalcMin() );
ret.x += 2*other_border;
return ret;
}
+#endif // wxUSE_STATBOX
+
//---------------------------------------------------------------------------
// wxNotebookSizer
//---------------------------------------------------------------------------
wxSize wxNotebookSizer::CalcMin()
{
- // This will have to be done platform by platform
- // as there is no way to guess the thickness of
- // the wxNotebook tabs and border.
+ wxSize sizeBorder = m_notebook->CalcSizeFromPage(wxSize(0, 0));
- int borderX = 5;
- int borderY = 5;
- if ((m_notebook->HasFlag(wxNB_RIGHT)) ||
- (m_notebook->HasFlag(wxNB_LEFT)))
- {
- borderX += 90; // improvements later..
- }
- else
- {
- borderY += 40; // improvements later..
- }
+ sizeBorder.x += 5;
+ sizeBorder.y += 5;
if (m_notebook->GetChildren().GetCount() == 0)
- return wxSize(borderX + 10, borderY + 10);
+ {
+ return wxSize(sizeBorder.x + 10, sizeBorder.y + 10);
+ }
int maxX = 0;
int maxY = 0;
{
wxSize subsize( itemsizer->CalcMin() );
- if (subsize.x > maxX) maxX = subsize.x;
- if (subsize.y > maxY) maxY = subsize.y;
+ if (subsize.x > maxX)
+ maxX = subsize.x;
+ if (subsize.y > maxY)
+ maxY = subsize.y;
}
node = node->GetNext();
}
- return wxSize( borderX + maxX, borderY + maxY );
+ return wxSize( maxX, maxY ) + sizeBorder;
}
#endif // wxUSE_NOTEBOOK
+
+// vi:sts=4:sw=4:et
projects / wxWidgets.git / blobdiff