b919f007af
the Life! sample. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5197 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
642 lines
16 KiB
C++
642 lines
16 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: sizer.cpp
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// Purpose: provide new wxSizer class for layout
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// Author: Robert Roebling and Robin Dunn
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// Modified by:
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// Created:
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// RCS-ID: $Id$
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// Copyright: (c) Robin Dunn, Dirk Holtwick and Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "sizer.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/sizer.h"
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#include "wx/utils.h"
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#include "wx/statbox.h"
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#include "wx/notebook.h"
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//---------------------------------------------------------------------------
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IMPLEMENT_ABSTRACT_CLASS(wxSizerItem, wxObject);
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IMPLEMENT_ABSTRACT_CLASS(wxSizer, wxObject);
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IMPLEMENT_ABSTRACT_CLASS(wxBoxSizer, wxSizer);
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IMPLEMENT_ABSTRACT_CLASS(wxStaticBoxSizer, wxBoxSizer);
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#if wxUSE_NOTEBOOK
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IMPLEMENT_ABSTRACT_CLASS(wxNotebookSizer, wxSizer);
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#endif
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//---------------------------------------------------------------------------
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// wxSizerItem
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//---------------------------------------------------------------------------
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wxSizerItem::wxSizerItem( int width, int height, int option, int flag, int border, wxObject* userData )
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{
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m_window = (wxWindow *) NULL;
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m_sizer = (wxSizer *) NULL;
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m_option = option;
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m_border = border;
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m_flag = flag;
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m_userData = userData;
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// minimal size is the initial size
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m_minSize.x = width;
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m_minSize.y = height;
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SetRatio(width, height);
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// size is set directly
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m_size = m_minSize;
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}
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wxSizerItem::wxSizerItem( wxWindow *window, int option, int flag, int border, wxObject* userData )
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{
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m_window = window;
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m_sizer = (wxSizer *) NULL;
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m_option = option;
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m_border = border;
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m_flag = flag;
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m_userData = userData;
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// minimal size is the initial size
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m_minSize = window->GetSize();
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// aspect ratio calculated from initial size
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SetRatio(m_minSize);
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// size is calculated later
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// m_size = ...
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}
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wxSizerItem::wxSizerItem( wxSizer *sizer, int option, int flag, int border, wxObject* userData )
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{
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m_window = (wxWindow *) NULL;
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m_sizer = sizer;
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m_option = option;
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m_border = border;
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m_flag = flag;
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m_userData = userData;
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// minimal size is calculated later
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// m_minSize = ...
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m_ratio = 0;
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// size is calculated later
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// m_size = ...
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}
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wxSizerItem::~wxSizerItem()
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{
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if (m_userData)
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delete m_userData;
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if (m_sizer)
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delete m_sizer;
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}
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wxSize wxSizerItem::GetSize()
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{
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wxSize ret;
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if (IsSizer())
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ret = m_sizer->GetSize();
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else
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if (IsWindow())
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ret = m_window->GetSize();
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else ret = m_size;
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if (m_flag & wxWEST)
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ret.x += m_border;
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if (m_flag & wxEAST)
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ret.x += m_border;
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if (m_flag & wxNORTH)
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ret.y += m_border;
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if (m_flag & wxSOUTH)
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ret.y += m_border;
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return ret;
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}
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wxSize wxSizerItem::CalcMin()
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{
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wxSize ret;
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if (IsSizer())
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{
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ret = m_sizer->CalcMin();
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// if we have to preserve aspect ratio _AND_ this is
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// the first-time calculation, consider ret to be initial size
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if ((m_flag & wxSHAPED) && !m_ratio) SetRatio(ret);
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}
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/*
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The minimum size of a window should be the
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initial size, as saved in m_minSize, not the
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current size.
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else
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if (IsWindow())
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ret = m_window->GetSize();
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*/
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else ret = m_minSize;
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if (m_flag & wxWEST)
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ret.x += m_border;
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if (m_flag & wxEAST)
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ret.x += m_border;
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if (m_flag & wxNORTH)
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ret.y += m_border;
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if (m_flag & wxSOUTH)
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ret.y += m_border;
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return ret;
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}
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void wxSizerItem::SetDimension( wxPoint pos, wxSize size )
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{
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if (m_flag & wxWEST)
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{
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pos.x += m_border;
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size.x -= m_border;
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}
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if (m_flag & wxEAST)
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{
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size.x -= m_border;
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}
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if (m_flag & wxNORTH)
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{
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pos.y += m_border;
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size.y -= m_border;
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}
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if (m_flag & wxSOUTH)
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{
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size.y -= m_border;
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}
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if (m_flag & wxSHAPED) {
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// adjust aspect ratio
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int rwidth = (int) (size.y * m_ratio);
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if (rwidth > size.x) {
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// fit horizontally
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int rheight = (int) (size.x / m_ratio);
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// add vertical space
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if (m_flag & wxALIGN_CENTER_VERTICAL)
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pos.y += (size.y - rheight) / 2;
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else if (m_flag & wxALIGN_BOTTOM)
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pos.y += (size.y - rheight);
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// use reduced dimensions
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size.y =rheight;
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} else if (rwidth < size.x) {
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// add horizontal space
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if (m_flag & wxALIGN_CENTER_HORIZONTAL)
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pos.x += (size.x - rwidth) / 2;
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else if (m_flag & wxALIGN_RIGHT)
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pos.x += (size.x - rwidth);
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size.x = rwidth;
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}
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}
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if (IsSizer())
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m_sizer->SetDimension( pos.x, pos.y, size.x, size.y );
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if (IsWindow())
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m_window->SetSize( pos.x, pos.y, size.x, size.y, wxSIZE_ALLOW_MINUS_ONE );
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m_size = size;
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}
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bool wxSizerItem::IsWindow()
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{
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return (m_window != NULL);
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}
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bool wxSizerItem::IsSizer()
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{
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return (m_sizer != NULL);
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}
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bool wxSizerItem::IsSpacer()
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{
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return (m_window == NULL) && (m_sizer == NULL);
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}
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//---------------------------------------------------------------------------
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// wxSizer
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//---------------------------------------------------------------------------
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wxSizer::wxSizer()
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{
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m_children.DeleteContents( TRUE );
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}
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wxSizer::~wxSizer()
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{
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}
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void wxSizer::Add( wxWindow *window, int option, int flag, int border, wxObject* userData )
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{
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m_children.Append( new wxSizerItem( window, option, flag, border, userData ) );
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}
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void wxSizer::Add( wxSizer *sizer, int option, int flag, int border, wxObject* userData )
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{
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m_children.Append( new wxSizerItem( sizer, option, flag, border, userData ) );
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}
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void wxSizer::Add( int width, int height, int option, int flag, int border, wxObject* userData )
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{
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m_children.Append( new wxSizerItem( width, height, option, flag, border, userData ) );
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}
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void wxSizer::Prepend( wxWindow *window, int option, int flag, int border, wxObject* userData )
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{
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m_children.Insert( new wxSizerItem( window, option, flag, border, userData ) );
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}
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void wxSizer::Prepend( wxSizer *sizer, int option, int flag, int border, wxObject* userData )
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{
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m_children.Insert( new wxSizerItem( sizer, option, flag, border, userData ) );
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}
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void wxSizer::Prepend( int width, int height, int option, int flag, int border, wxObject* userData )
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{
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m_children.Insert( new wxSizerItem( width, height, option, flag, border, userData ) );
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}
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void wxSizer::Insert( int before, wxWindow *window, int option, int flag, int border, wxObject* userData )
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{
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m_children.Insert( before, new wxSizerItem( window, option, flag, border, userData ) );
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}
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void wxSizer::Insert( int before, wxSizer *sizer, int option, int flag, int border, wxObject* userData )
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{
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m_children.Insert( before, new wxSizerItem( sizer, option, flag, border, userData ) );
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}
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void wxSizer::Insert( int before, int width, int height, int option, int flag, int border, wxObject* userData )
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{
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m_children.Insert( before, new wxSizerItem( width, height, option, flag, border, userData ) );
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}
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bool wxSizer::Remove( wxWindow *window )
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{
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wxASSERT( window );
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wxNode *node = m_children.First();
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while (node)
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{
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wxSizerItem *item = (wxSizerItem*)node->Data();
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if (item->GetWindow() == window)
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{
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m_children.DeleteNode( node );
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return TRUE;
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}
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node = node->Next();
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}
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return FALSE;
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}
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bool wxSizer::Remove( wxSizer *sizer )
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{
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wxASSERT( sizer );
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wxNode *node = m_children.First();
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while (node)
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{
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wxSizerItem *item = (wxSizerItem*)node->Data();
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if (item->GetSizer() == sizer)
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{
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m_children.DeleteNode( node );
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return TRUE;
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}
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node = node->Next();
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}
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return FALSE;
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}
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bool wxSizer::Remove( int pos )
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{
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wxNode *node = m_children.Nth( pos );
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if (!node) return FALSE;
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m_children.DeleteNode( node );
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return TRUE;
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}
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void wxSizer::Fit( wxWindow *window )
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{
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window->SetSize( GetMinWindowSize( window ) );
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}
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void wxSizer::Layout()
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{
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CalcMin();
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RecalcSizes();
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}
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void wxSizer::SetSizeHints( wxWindow *window )
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{
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wxSize size( GetMinWindowSize( window ) );
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window->SetSizeHints( size.x, size.y );
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}
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wxSize wxSizer::GetMinWindowSize( wxWindow *window )
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{
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wxSize minSize( GetMinSize() );
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wxSize size( window->GetSize() );
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wxSize client_size( window->GetClientSize() );
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return wxSize( minSize.x+size.x-client_size.x,
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minSize.y+size.y-client_size.y );
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}
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void wxSizer::SetDimension( int x, int y, int width, int height )
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{
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m_position.x = x;
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m_position.y = y;
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m_size.x = width;
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m_size.y = height;
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CalcMin();
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RecalcSizes();
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}
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//---------------------------------------------------------------------------
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// wxBoxSizer
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//---------------------------------------------------------------------------
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wxBoxSizer::wxBoxSizer( int orient )
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{
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m_orient = orient;
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}
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void wxBoxSizer::RecalcSizes()
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{
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if (m_children.GetCount() == 0)
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return;
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int delta = 0;
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int extra = 0;
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if (m_stretchable)
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{
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if (m_orient == wxHORIZONTAL)
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{
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delta = (m_size.x - m_fixedWidth) / m_stretchable;
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extra = (m_size.x - m_fixedWidth) % m_stretchable;
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}
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else
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{
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delta = (m_size.y - m_fixedHeight) / m_stretchable;
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extra = (m_size.y - m_fixedHeight) % m_stretchable;
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}
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}
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wxPoint pt( m_position );
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wxNode *node = m_children.GetFirst();
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while (node)
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{
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wxSizerItem *item = (wxSizerItem*) node->Data();
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int weight = 1;
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if (item->GetOption())
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weight = item->GetOption();
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wxSize size( item->CalcMin() );
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if (m_orient == wxVERTICAL)
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{
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wxCoord height = size.y;
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if (item->GetOption())
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{
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height = (delta * weight) + extra;
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extra = 0; // only the first item will get the remainder as extra size
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}
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wxPoint child_pos( pt );
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wxSize child_size( wxSize( size.x, height) );
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if (item->GetFlag() & (wxEXPAND | wxSHAPED))
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child_size.x = m_size.x;
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else if (item->GetFlag() & wxALIGN_RIGHT)
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child_pos.x += m_size.x - size.x;
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else if (item->GetFlag() & (wxCENTER | wxALIGN_CENTER_HORIZONTAL))
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// XXX wxCENTER is added for backward compatibility;
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// wxALIGN_CENTER should be used in new code
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child_pos.x += (m_size.x - size.x) / 2;
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item->SetDimension( child_pos, child_size );
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pt.y += height;
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}
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else
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{
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wxCoord width = size.x;
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if (item->GetOption())
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{
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width = (delta * weight) + extra;
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extra = 0; // only the first item will get the remainder as extra size
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}
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wxPoint child_pos( pt );
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wxSize child_size( wxSize(width, size.y) );
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if (item->GetFlag() & (wxEXPAND | wxSHAPED))
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child_size.y = m_size.y;
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else if (item->GetFlag() & wxALIGN_BOTTOM)
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child_pos.y += m_size.y - size.y;
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else if (item->GetFlag() & (wxCENTER | wxALIGN_CENTER_VERTICAL))
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// XXX wxCENTER is added for backward compatibility;
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// wxALIGN_CENTER should be used in new code
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child_pos.y += (m_size.y - size.y) / 2;
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item->SetDimension( child_pos, child_size );
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pt.x += width;
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}
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node = node->Next();
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}
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}
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wxSize wxBoxSizer::CalcMin()
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{
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if (m_children.GetCount() == 0)
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return wxSize(10,10);
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m_stretchable = 0;
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m_minWidth = 0;
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m_minHeight = 0;
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m_fixedWidth = 0;
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m_fixedHeight = 0;
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wxNode *node = m_children.GetFirst();
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while (node)
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{
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wxSizerItem *item = (wxSizerItem*) node->Data();
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int weight = 1;
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if (item->GetOption())
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weight = item->GetOption();
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wxSize size( item->CalcMin() );
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if (m_orient == wxHORIZONTAL)
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{
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m_minWidth += (size.x * weight);
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m_minHeight = wxMax( m_minHeight, size.y );
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}
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else
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{
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m_minHeight += (size.y * weight);
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m_minWidth = wxMax( m_minWidth, size.x );
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}
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if (item->GetOption())
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{
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m_stretchable += weight;
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}
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else
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{
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if (m_orient == wxVERTICAL)
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{
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m_fixedHeight += size.y;
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m_fixedWidth = wxMax( m_fixedWidth, size.x );
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}
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else
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{
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m_fixedWidth += size.x;
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m_fixedHeight = wxMax( m_fixedHeight, size.y );
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}
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}
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node = node->Next();
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}
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return wxSize( m_minWidth, m_minHeight );
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}
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//---------------------------------------------------------------------------
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// wxStaticBoxSizer
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//---------------------------------------------------------------------------
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wxStaticBoxSizer::wxStaticBoxSizer( wxStaticBox *box, int orient )
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: wxBoxSizer( orient )
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{
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wxASSERT_MSG( box, wxT("wxStaticBoxSizer needs a static box") );
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m_staticBox = box;
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}
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void wxStaticBoxSizer::RecalcSizes()
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{
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// this will have to be done platform by platform
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// as there is no way to guess the thickness of
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// a wxStaticBox border
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int top_border = 15;
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if (m_staticBox->GetLabel().IsEmpty()) top_border = 5;
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int other_border = 5;
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m_staticBox->SetSize( m_position.x, m_position.y, m_size.x, m_size.y );
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wxPoint old_pos( m_position );
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m_position.x += other_border;
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m_position.y += top_border;
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wxSize old_size( m_size );
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m_size.x -= 2*other_border;
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m_size.y -= top_border + other_border;
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wxBoxSizer::RecalcSizes();
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m_position = old_pos;
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m_size = old_size;
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}
|
|
|
|
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;
|
|
|
|
wxSize ret( wxBoxSizer::CalcMin() );
|
|
ret.x += 2*other_border;
|
|
ret.y += other_border + top_border;
|
|
|
|
return ret;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
// 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()
|
|
{
|
|
// This will have to be done platform by platform
|
|
// as there is no way to guess the thickness of
|
|
// the wxNotebook tabs and border.
|
|
|
|
int borderX = 5;
|
|
int borderY = 5;
|
|
if ((m_notebook->HasFlag(wxNB_RIGHT)) ||
|
|
(m_notebook->HasFlag(wxNB_LEFT)))
|
|
{
|
|
borderX += 70; // improvements later..
|
|
}
|
|
else
|
|
{
|
|
borderY += 35; // improvements later..
|
|
}
|
|
|
|
if (m_notebook->GetChildren().GetCount() == 0)
|
|
return wxSize(borderX + 10, borderY + 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( borderX + maxX, borderY + maxY );
|
|
}
|
|
|
|
#endif // wxUSE_NOTEBOOK
|