don't assign NULLs to bools and floats, this is confusing (and also the usual: deTABi...

[wxWidgets.git] / samples / layout / layout.cpp

diff --git a/samples/layout/layout.cpp b/samples/layout/layout.cpp
index 1ee69f89e513cb3e7d90626750849dc153f5277a..a8d61512311d318ad45d579f0e4bb53145c089c2 100644 (file)
--- a/samples/layout/layout.cpp
+++ b/samples/layout/layout.cpp
@@ -2,10 +2,11 @@
 // Name:        layout.cpp
 // Purpose:     Layout sample
 // Author:      Julian Smart
 // Name:        layout.cpp
 // Purpose:     Layout sample
 // Author:      Julian Smart

-// Modified by:
+// Modified by: Robin Dunn, Vadim Zeitlin

 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Created:     04/01/98
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart
+// Copyright:   (c) 1998 Julian Smart
+//                  2005 Vadim Zeitlin

 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 


@@ -28,6 +29,7 @@
 #include "wx/gbsizer.h"
 #include "wx/statline.h"
 #include "wx/notebook.h"
 #include "wx/gbsizer.h"
 #include "wx/statline.h"
 #include "wx/notebook.h"

+#include "wx/spinctrl.h"

 
 #include "layout.h"
 
 
 #include "layout.h"
 


@@ -37,10 +39,6 @@
 
 IMPLEMENT_APP(MyApp)
 
 
 IMPLEMENT_APP(MyApp)
 

-MyApp::MyApp()
-{
-}
-

 bool MyApp::OnInit()
 {
   // Create the main frame window
 bool MyApp::OnInit()
 {
   // Create the main frame window


@@ -59,9 +57,12 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
   EVT_MENU(LAYOUT_ABOUT, MyFrame::OnAbout)
   EVT_MENU(LAYOUT_QUIT, MyFrame::OnQuit)
 
   EVT_MENU(LAYOUT_ABOUT, MyFrame::OnAbout)
   EVT_MENU(LAYOUT_QUIT, MyFrame::OnQuit)
 

+  EVT_MENU(LAYOUT_TEST_PROPORTIONS, MyFrame::TestProportions)

   EVT_MENU(LAYOUT_TEST_SIZER, MyFrame::TestFlexSizers)
   EVT_MENU(LAYOUT_TEST_NB_SIZER, MyFrame::TestNotebookSizers)
   EVT_MENU(LAYOUT_TEST_SIZER, MyFrame::TestFlexSizers)
   EVT_MENU(LAYOUT_TEST_NB_SIZER, MyFrame::TestNotebookSizers)

-  EVT_MENU(LAYOUT_TEST_GB_SIZER, MyFrame::TestGridBagSizer)    
+  EVT_MENU(LAYOUT_TEST_GB_SIZER, MyFrame::TestGridBagSizer)
+  EVT_MENU(LAYOUT_TEST_SET_MINIMAL, MyFrame::TestSetMinimal)
+  EVT_MENU(LAYOUT_TEST_NESTED, MyFrame::TestNested)

 END_EVENT_TABLE()
 
 // Define my frame constructor
 END_EVENT_TABLE()
 
 // Define my frame constructor


@@ -73,15 +74,18 @@ MyFrame::MyFrame()
   // Make a menubar
   wxMenu *file_menu = new wxMenu;
 
   // Make a menubar
   wxMenu *file_menu = new wxMenu;
 

-  file_menu->Append(LAYOUT_TEST_SIZER, _T("Test wx&FlexSizer"));
-  file_menu->Append(LAYOUT_TEST_NB_SIZER, _T("&Test notebook sizers"));
-  file_menu->Append(LAYOUT_TEST_GB_SIZER, _T("Test &gridbag sizer"));
+  file_menu->Append(LAYOUT_TEST_PROPORTIONS, _T("&Proportions demo...\tF1"));
+  file_menu->Append(LAYOUT_TEST_SIZER, _T("Test wx&FlexSizer...\tF2"));
+  file_menu->Append(LAYOUT_TEST_NB_SIZER, _T("Test &notebook sizers...\tF3"));
+  file_menu->Append(LAYOUT_TEST_GB_SIZER, _T("Test &gridbag sizer...\tF4"));
+  file_menu->Append(LAYOUT_TEST_SET_MINIMAL, _T("Test Set&ItemMinSize...\tF5"));
+  file_menu->Append(LAYOUT_TEST_NESTED, _T("Test nested sizer in a wxPanel...\tF6"));

 
   file_menu->AppendSeparator();
   file_menu->Append(LAYOUT_QUIT, _T("E&xit"), _T("Quit program"));
 
   wxMenu *help_menu = new wxMenu;
 
   file_menu->AppendSeparator();
   file_menu->Append(LAYOUT_QUIT, _T("E&xit"), _T("Quit program"));
 
   wxMenu *help_menu = new wxMenu;

-  help_menu->Append(LAYOUT_ABOUT, _T("&About"), _T("About layout demo"));
+  help_menu->Append(LAYOUT_ABOUT, _T("&About"), _T("About layout demo..."));

 
   wxMenuBar *menu_bar = new wxMenuBar;
 
 
   wxMenuBar *menu_bar = new wxMenuBar;
 


@@ -96,6 +100,8 @@ MyFrame::MyFrame()
   SetStatusText(_T("wxWidgets layout demo"));
 #endif // wxUSE_STATUSBAR
 
   SetStatusText(_T("wxWidgets layout demo"));
 #endif // wxUSE_STATUSBAR
 

+  wxPanel* p = new wxPanel(this, wxID_ANY);
+

   // we want to get a dialog that is stretchable because it
   // has a text ctrl in the middle. at the bottom, we have
   // two buttons which.
   // we want to get a dialog that is stretchable because it
   // has a text ctrl in the middle. at the bottom, we have
   // two buttons which.


@@ -104,88 +110,79 @@ MyFrame::MyFrame()
 
   // 1) top: create wxStaticText with minimum size equal to its default size
   topsizer->Add(
 
   // 1) top: create wxStaticText with minimum size equal to its default size
   topsizer->Add(

-    new wxStaticText( this, wxID_ANY, _T("An explanation (wxALIGN_RIGHT).") ),
-    0,                         // make vertically unstretchable
-    wxALIGN_RIGHT |            // right align text
-    wxTOP | wxLEFT | wxRIGHT,  // make border all around except wxBOTTOM
-    5 );                      // set border width to 5
+    new wxStaticText( p, wxID_ANY, _T("An explanation (wxALIGN_RIGHT).") ),
+    wxSizerFlags().Align(wxALIGN_RIGHT).Border(wxALL & ~wxBOTTOM, 5));

 
   // 2) top: create wxTextCtrl with minimum size (100x60)
   topsizer->Add(
 
   // 2) top: create wxTextCtrl with minimum size (100x60)
   topsizer->Add(

-    new wxTextCtrl( this, wxID_ANY, _T("My text (wxEXPAND)."), wxDefaultPosition, wxSize(100,60), wxTE_MULTILINE),
-    1,            // make vertically stretchable
-    wxEXPAND |    // make horizontally stretchable
-    wxALL,        //   and make border all around
-    5 );         // set border width to 5
+    new wxTextCtrl( p, wxID_ANY, _T("My text (wxEXPAND)."), wxDefaultPosition, wxSize(100,60), wxTE_MULTILINE),
+    wxSizerFlags(1).Expand().Border(wxALL, 5));

 
   // 2.5) Gratuitous test of wxStaticBoxSizers
   wxBoxSizer *statsizer = new wxStaticBoxSizer(
 
   // 2.5) Gratuitous test of wxStaticBoxSizers
   wxBoxSizer *statsizer = new wxStaticBoxSizer(

-    new wxStaticBox(this, wxID_ANY, _T("A wxStaticBoxSizer")),
-    wxVERTICAL );
+    new wxStaticBox(p, wxID_ANY, _T("A wxStaticBoxSizer")), wxVERTICAL );

   statsizer->Add(
   statsizer->Add(

-    new wxStaticText(this, wxID_ANY, _T("And some TEXT inside it")),
-    0,
-    wxCENTER |
-    wxALL,
-    30);
-  topsizer->Add(statsizer, 1, wxEXPAND | wxALL, 10);
+    new wxStaticText(p, wxID_ANY, _T("And some TEXT inside it")),
+    wxSizerFlags().Center().Border(wxALL, 30));
+  topsizer->Add(
+    statsizer,
+    wxSizerFlags(1).Expand().Border(wxALL, 10));

 
     // 2.7) And a test of wxGridSizer
     wxGridSizer *gridsizer = new wxGridSizer(2, 5, 5);
 
     // 2.7) And a test of wxGridSizer
     wxGridSizer *gridsizer = new wxGridSizer(2, 5, 5);

-    gridsizer->Add(new wxStaticText(this, wxID_ANY, _T("Label")), 0,
-                  wxALIGN_RIGHT | wxALIGN_CENTER_VERTICAL);
-    gridsizer->Add(new wxTextCtrl(this, wxID_ANY, _T("Grid sizer demo")), 1,
-                   wxGROW | wxALIGN_CENTER_VERTICAL);
-    gridsizer->Add(new wxStaticText(this, wxID_ANY, _T("Another label")), 0,
-                   wxALIGN_RIGHT | wxALIGN_CENTER_VERTICAL);
-    gridsizer->Add(new wxTextCtrl(this, wxID_ANY, _T("More text")), 1,
-                   wxGROW | wxALIGN_CENTER_VERTICAL);
-    gridsizer->Add(new wxStaticText(this, wxID_ANY, _T("Final label")), 0,
-                   wxALIGN_RIGHT | wxALIGN_CENTER_VERTICAL);
-    gridsizer->Add(new wxTextCtrl(this, wxID_ANY, _T("And yet more text")), 1,
-                   wxGROW | wxALIGN_CENTER_VERTICAL);
-    topsizer->Add(gridsizer, 1, wxGROW | wxALL, 10);
-
-
+    gridsizer->Add(new wxStaticText(p, wxID_ANY, _T("Label")),
+                   wxSizerFlags().Align(wxALIGN_RIGHT | wxALIGN_CENTER_VERTICAL));
+    gridsizer->Add(new wxTextCtrl(p, wxID_ANY, _T("Grid sizer demo")),
+                   wxSizerFlags(1).Align(wxGROW | wxALIGN_CENTER_VERTICAL));
+    gridsizer->Add(new wxStaticText(p, wxID_ANY, _T("Another label")),
+                   wxSizerFlags().Align(wxALIGN_RIGHT | wxALIGN_CENTER_VERTICAL));
+    gridsizer->Add(new wxTextCtrl(p, wxID_ANY, _T("More text")),
+                   wxSizerFlags(1).Align(wxGROW | wxALIGN_CENTER_VERTICAL));
+    gridsizer->Add(new wxStaticText(p, wxID_ANY, _T("Final label")),
+                   wxSizerFlags().Align(wxALIGN_RIGHT | wxALIGN_CENTER_VERTICAL));
+    gridsizer->Add(new wxTextCtrl(p, wxID_ANY, _T("And yet more text")),
+                   wxSizerFlags().Align(wxGROW | wxALIGN_CENTER_VERTICAL));
+    topsizer->Add(
+        gridsizer,
+        wxSizerFlags().Proportion(1).Expand().Border(wxALL, 10));
+
+
+#if wxUSE_STATLINE

   // 3) middle: create wxStaticLine with minimum size (3x3)
   topsizer->Add(
   // 3) middle: create wxStaticLine with minimum size (3x3)
   topsizer->Add(

-     new wxStaticLine( this, wxID_ANY, wxDefaultPosition, wxSize(3,3), wxHORIZONTAL),
-     0,           // make vertically unstretchable
-     wxEXPAND |   // make horizontally stretchable
-     wxALL,       //   and make border all around
-     5 );         // set border width to 5
+     new wxStaticLine( p, wxID_ANY, wxDefaultPosition, wxSize(3,3), wxHORIZONTAL),
+     wxSizerFlags().Expand());
+#endif // wxUSE_STATLINE

 
 
   // 4) bottom: create two centred wxButtons
   wxBoxSizer *button_box = new wxBoxSizer( wxHORIZONTAL );
   button_box->Add(
 
 
   // 4) bottom: create two centred wxButtons
   wxBoxSizer *button_box = new wxBoxSizer( wxHORIZONTAL );
   button_box->Add(

-     new wxButton( this, wxID_ANY, _T("Two buttons in a box") ),
-     0,           // make horizontally unstretchable
-     wxALL,       // make border all around
-     7 );         // set border width to 7
+     new wxButton( p, wxID_ANY, _T("Two buttons in a box") ),
+     wxSizerFlags().Border(wxALL, 7));

   button_box->Add(
   button_box->Add(

-     new wxButton( this, wxID_ANY, _T("(wxCENTER)") ),
-     0,           // make horizontally unstretchable
-     wxALL,       // make border all around
-     7 );         // set border width to 7
+     new wxButton( p, wxID_ANY, _T("(wxCENTER)") ),
+     wxSizerFlags().Border(wxALL, 7));

 
 

-  topsizer->Add(
-     button_box,
-     0,          // make vertically unstretchable
-     wxCENTER ); // no border and centre horizontally
+  topsizer->Add(button_box, wxSizerFlags().Center());
+
+  p->SetSizer( topsizer );

 
   // don't allow frame to get smaller than what the sizers tell it and also set
   // the initial size as calculated by the sizers
   topsizer->SetSizeHints( this );
 
   // don't allow frame to get smaller than what the sizers tell it and also set
   // the initial size as calculated by the sizers
   topsizer->SetSizeHints( this );

-
-  SetSizer( topsizer );

 }
 
 }
 

-void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))

 {
     Close(true);
 }
 
 {
     Close(true);
 }
 

+void MyFrame::TestProportions(wxCommandEvent& WXUNUSED(event))
+{
+    (new MyProportionsFrame(this))->Show();
+}
+

 void MyFrame::TestFlexSizers(wxCommandEvent& WXUNUSED(event) )
 {
     MyFlexSizerFrame *newFrame = new MyFlexSizerFrame(_T("Flex Sizer Test Frame"), 50, 50);
 void MyFrame::TestFlexSizers(wxCommandEvent& WXUNUSED(event) )
 {
     MyFlexSizerFrame *newFrame = new MyFlexSizerFrame(_T("Flex Sizer Test Frame"), 50, 50);


@@ -199,6 +196,18 @@ void MyFrame::TestNotebookSizers(wxCommandEvent& WXUNUSED(event) )
     dialog.ShowModal();
 }
 
     dialog.ShowModal();
 }
 

+void MyFrame::TestSetMinimal(wxCommandEvent& WXUNUSED(event) )
+{
+    MySimpleSizerFrame *newFrame = new MySimpleSizerFrame(_T("Simple Sizer Test Frame"), 50, 50);
+    newFrame->Show(true);
+}
+
+void MyFrame::TestNested(wxCommandEvent& WXUNUSED(event) )
+{
+    MyNestedSizerFrame *newFrame = new MyNestedSizerFrame(_T("Nested Sizer Test Frame"), 50, 50);
+    newFrame->Show(true);
+}
+

 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 {
 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 {


@@ -213,12 +222,68 @@ void MyFrame::TestGridBagSizer(wxCommandEvent& WXUNUSED(event) )
     newFrame->Show(true);
 }
 
     newFrame->Show(true);
 }
 

+// ----------------------------------------------------------------------------
+// MyProportionsFrame
+// ----------------------------------------------------------------------------
+
+MyProportionsFrame::MyProportionsFrame(wxFrame *parent)
+                  : wxFrame(parent, wxID_ANY, _T("Box Sizer Proportions Demo"))
+{
+    size_t n;
+
+    // create the controls
+    wxPanel *panel = new wxPanel(this, wxID_ANY);
+    for ( n = 0; n < WXSIZEOF(m_spins); n++ )
+    {
+        m_spins[n] = new wxSpinCtrl(panel);
+        m_spins[n]->SetValue(n);
+    }
+
+    // lay them out
+    m_sizer = new wxStaticBoxSizer(wxHORIZONTAL, panel,
+                _T("Try changing elements proportions and resizing the window"));
+    for ( n = 0; n < WXSIZEOF(m_spins); n++ )
+        m_sizer->Add(m_spins[n], wxSizerFlags().Border());
+
+    // put everything together
+    panel->SetSizer(m_sizer);
+    wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
+    sizerTop->Add(panel, wxSizerFlags(1).Expand().Border());
+    UpdateProportions();
+    SetSizerAndFit(sizerTop);
+
+    // and connect the events
+    Connect(wxEVT_COMMAND_TEXT_UPDATED,
+                wxCommandEventHandler(MyProportionsFrame::OnProportionUpdated));
+    Connect(wxEVT_COMMAND_SPINCTRL_UPDATED,
+            wxSpinEventHandler(MyProportionsFrame::OnProportionChanged));
+}
+
+void MyProportionsFrame::UpdateProportions()
+{
+    for ( size_t n = 0; n < WXSIZEOF(m_spins); n++ )
+    {
+        m_sizer->GetItem(n)->SetProportion(m_spins[n]->GetValue());
+    }
+
+    m_sizer->Layout();
+}
+
+void MyProportionsFrame::OnProportionUpdated(wxCommandEvent& WXUNUSED(event))
+{
+    UpdateProportions();
+}
+
+void MyProportionsFrame::OnProportionChanged(wxSpinEvent& WXUNUSED(event))
+{
+    UpdateProportions();
+}

 
 // ----------------------------------------------------------------------------
 //  MyFlexSizerFrame
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 //  MyFlexSizerFrame
 // ----------------------------------------------------------------------------
 

-void MyFlexSizerFrame::InitFlexSizer(wxFlexGridSizer *sizer)
+void MyFlexSizerFrame::InitFlexSizer(wxFlexGridSizer *sizer, wxWindow* parent)

 {
     for ( int i = 0; i < 3; i++ )
     {
 {
     for ( int i = 0; i < 3; i++ )
     {


@@ -226,7 +291,7 @@ void MyFlexSizerFrame::InitFlexSizer(wxFlexGridSizer *sizer)
         {
             sizer->Add(new wxStaticText
                            (
         {
             sizer->Add(new wxStaticText
                            (

-                            this,
+                            parent,

                             wxID_ANY,
                             wxString::Format(_T("(%d, %d)"), i + 1, j + 1),
                             wxDefaultPosition,
                             wxID_ANY,
                             wxString::Format(_T("(%d, %d)"), i + 1, j + 1),
                             wxDefaultPosition,


@@ -242,29 +307,30 @@ MyFlexSizerFrame::MyFlexSizerFrame(const wxChar *title, int x, int y )
             : wxFrame(NULL, wxID_ANY, title, wxPoint(x, y) )
 {
     wxFlexGridSizer *sizerFlex;
             : wxFrame(NULL, wxID_ANY, title, wxPoint(x, y) )
 {
     wxFlexGridSizer *sizerFlex;

+    wxPanel* p = new wxPanel(this, wxID_ANY);

 
     // consttuct the first column
     wxSizer *sizerCol1 = new wxBoxSizer(wxVERTICAL);
 
     // consttuct the first column
     wxSizer *sizerCol1 = new wxBoxSizer(wxVERTICAL);

-    sizerCol1->Add(new wxStaticText(this, wxID_ANY, _T("Ungrowable:")), 0, wxCENTER | wxTOP, 20);
+    sizerCol1->Add(new wxStaticText(p, wxID_ANY, _T("Ungrowable:")), 0, wxCENTER | wxTOP, 20);

     sizerFlex = new wxFlexGridSizer(3, 3);
     sizerFlex = new wxFlexGridSizer(3, 3);

-    InitFlexSizer(sizerFlex);
+    InitFlexSizer(sizerFlex, p);

     sizerCol1->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 
     sizerCol1->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 

-    sizerCol1->Add(new wxStaticText(this, wxID_ANY, _T("Growable middle column:")), 0, wxCENTER | wxTOP, 20);
+    sizerCol1->Add(new wxStaticText(p, wxID_ANY, _T("Growable middle column:")), 0, wxCENTER | wxTOP, 20);

     sizerFlex = new wxFlexGridSizer(3, 3);
     sizerFlex = new wxFlexGridSizer(3, 3);

-    InitFlexSizer(sizerFlex);
+    InitFlexSizer(sizerFlex, p);

     sizerFlex->AddGrowableCol(1);
     sizerCol1->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 
     sizerFlex->AddGrowableCol(1);
     sizerCol1->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 

-    sizerCol1->Add(new wxStaticText(this, wxID_ANY, _T("Growable middle row:")), 0, wxCENTER | wxTOP, 20);
+    sizerCol1->Add(new wxStaticText(p, wxID_ANY, _T("Growable middle row:")), 0, wxCENTER | wxTOP, 20);

     sizerFlex = new wxFlexGridSizer(3, 3);
     sizerFlex = new wxFlexGridSizer(3, 3);

-    InitFlexSizer(sizerFlex);
+    InitFlexSizer(sizerFlex, p);

     sizerFlex->AddGrowableRow(1);
     sizerCol1->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 
     sizerFlex->AddGrowableRow(1);
     sizerCol1->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 

-    sizerCol1->Add(new wxStaticText(this, wxID_ANY, _T("All growable columns:")), 0, wxCENTER | wxTOP, 20);
+    sizerCol1->Add(new wxStaticText(p, wxID_ANY, _T("All growable columns:")), 0, wxCENTER | wxTOP, 20);

     sizerFlex = new wxFlexGridSizer(3, 3);
     sizerFlex = new wxFlexGridSizer(3, 3);

-    InitFlexSizer(sizerFlex);
+    InitFlexSizer(sizerFlex, p);

     sizerFlex->AddGrowableCol(0, 1);
     sizerFlex->AddGrowableCol(1, 2);
     sizerFlex->AddGrowableCol(2, 3);
     sizerFlex->AddGrowableCol(0, 1);
     sizerFlex->AddGrowableCol(1, 2);
     sizerFlex->AddGrowableCol(2, 3);


@@ -272,33 +338,33 @@ MyFlexSizerFrame::MyFlexSizerFrame(const wxChar *title, int x, int y )
 
     // the second one
     wxSizer *sizerCol2 = new wxBoxSizer(wxVERTICAL);
 
     // the second one
     wxSizer *sizerCol2 = new wxBoxSizer(wxVERTICAL);

-    sizerCol2->Add(new wxStaticText(this, wxID_ANY, _T("Growable middle row and column:")), 0, wxCENTER | wxTOP, 20);
+    sizerCol2->Add(new wxStaticText(p, wxID_ANY, _T("Growable middle row and column:")), 0, wxCENTER | wxTOP, 20);

     sizerFlex = new wxFlexGridSizer(3, 3);
     sizerFlex = new wxFlexGridSizer(3, 3);

-    InitFlexSizer(sizerFlex);
+    InitFlexSizer(sizerFlex, p);

     sizerFlex->AddGrowableCol(1);
     sizerFlex->AddGrowableRow(1);
     sizerCol2->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 
     sizerFlex->AddGrowableCol(1);
     sizerFlex->AddGrowableRow(1);
     sizerCol2->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 

-    sizerCol2->Add(new wxStaticText(this, wxID_ANY, _T("Same with horz flex direction")), 0, wxCENTER | wxTOP, 20);
+    sizerCol2->Add(new wxStaticText(p, wxID_ANY, _T("Same with horz flex direction")), 0, wxCENTER | wxTOP, 20);

     sizerFlex = new wxFlexGridSizer(3, 3);
     sizerFlex = new wxFlexGridSizer(3, 3);

-    InitFlexSizer(sizerFlex);
+    InitFlexSizer(sizerFlex, p);

     sizerFlex->AddGrowableCol(1);
     sizerFlex->AddGrowableRow(1);
     sizerFlex->SetFlexibleDirection(wxHORIZONTAL);
     sizerCol2->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 
     sizerFlex->AddGrowableCol(1);
     sizerFlex->AddGrowableRow(1);
     sizerFlex->SetFlexibleDirection(wxHORIZONTAL);
     sizerCol2->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 

-    sizerCol2->Add(new wxStaticText(this, wxID_ANY, _T("Same with grow mode == \"none\"")), 0, wxCENTER | wxTOP, 20);
+    sizerCol2->Add(new wxStaticText(p, wxID_ANY, _T("Same with grow mode == \"none\"")), 0, wxCENTER | wxTOP, 20);

     sizerFlex = new wxFlexGridSizer(3, 3);
     sizerFlex = new wxFlexGridSizer(3, 3);

-    InitFlexSizer(sizerFlex);
+    InitFlexSizer(sizerFlex, p);

     sizerFlex->AddGrowableCol(1);
     sizerFlex->AddGrowableRow(1);
     sizerFlex->SetFlexibleDirection(wxHORIZONTAL);
     sizerFlex->SetNonFlexibleGrowMode(wxFLEX_GROWMODE_NONE);
     sizerCol2->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 
     sizerFlex->AddGrowableCol(1);
     sizerFlex->AddGrowableRow(1);
     sizerFlex->SetFlexibleDirection(wxHORIZONTAL);
     sizerFlex->SetNonFlexibleGrowMode(wxFLEX_GROWMODE_NONE);
     sizerCol2->Add(sizerFlex, 1, wxALL | wxEXPAND, 10);
 

-    sizerCol2->Add(new wxStaticText(this, wxID_ANY, _T("Same with grow mode == \"all\"")), 0, wxCENTER | wxTOP, 20);
+    sizerCol2->Add(new wxStaticText(p, wxID_ANY, _T("Same with grow mode == \"all\"")), 0, wxCENTER | wxTOP, 20);

     sizerFlex = new wxFlexGridSizer(3, 3);
     sizerFlex = new wxFlexGridSizer(3, 3);

-    InitFlexSizer(sizerFlex);
+    InitFlexSizer(sizerFlex, p);

     sizerFlex->AddGrowableCol(1);
     sizerFlex->AddGrowableRow(1);
     sizerFlex->SetFlexibleDirection(wxHORIZONTAL);
     sizerFlex->AddGrowableCol(1);
     sizerFlex->AddGrowableRow(1);
     sizerFlex->SetFlexibleDirection(wxHORIZONTAL);


@@ -310,7 +376,7 @@ MyFlexSizerFrame::MyFlexSizerFrame(const wxChar *title, int x, int y )
     sizerTop->Add(sizerCol1, 1, wxEXPAND);
     sizerTop->Add(sizerCol2, 1, wxEXPAND);
 
     sizerTop->Add(sizerCol1, 1, wxEXPAND);
     sizerTop->Add(sizerCol2, 1, wxEXPAND);
 

-    SetSizer(sizerTop);
+    p->SetSizer(sizerTop);

     sizerTop->SetSizeHints(this);
 }
 
     sizerTop->SetSizeHints(this);
 }
 


@@ -342,9 +408,9 @@ MySizerDialog::MySizerDialog(wxWindow *parent, const wxChar *title)
 
     wxSizer *panelsizer = new wxBoxSizer( wxVERTICAL );
 
 
     wxSizer *panelsizer = new wxBoxSizer( wxVERTICAL );
 

-    wxTextCtrl *text = new wxTextCtrl( panel, wxID_ANY, _T("TextLine 1."), wxDefaultPosition, wxSize(250,-1) );
+    wxTextCtrl *text = new wxTextCtrl( panel, wxID_ANY, _T("TextLine 1."), wxDefaultPosition, wxSize(250,wxDefaultCoord) );

     panelsizer->Add( text, 0, wxGROW|wxALL, 30 );
     panelsizer->Add( text, 0, wxGROW|wxALL, 30 );

-    text = new wxTextCtrl( panel, wxID_ANY, _T("TextLine 2."), wxDefaultPosition, wxSize(250,-1) );
+    text = new wxTextCtrl( panel, wxID_ANY, _T("TextLine 2."), wxDefaultPosition, wxSize(250,wxDefaultCoord) );

     panelsizer->Add( text, 0, wxGROW|wxALL, 30 );
     wxButton *button2 = new wxButton( panel, wxID_ANY, _T("Hallo") );
     panelsizer->Add( button2, 0, wxALIGN_RIGHT | wxLEFT|wxRIGHT|wxBOTTOM, 30 );
     panelsizer->Add( text, 0, wxGROW|wxALL, 30 );
     wxButton *button2 = new wxButton( panel, wxID_ANY, _T("Hallo") );
     panelsizer->Add( button2, 0, wxALIGN_RIGHT | wxLEFT|wxRIGHT|wxBOTTOM, 30 );


@@ -367,7 +433,7 @@ MySizerDialog::MySizerDialog(wxWindow *parent, const wxChar *title)
 #define POS(r, c)        wxGBPosition(r,c)
 #define SPAN(r, c)       wxGBSpan(r,c)
 
 #define POS(r, c)        wxGBPosition(r,c)
 #define SPAN(r, c)       wxGBSpan(r,c)
 

-wxChar* gbsDescription =_T("\
+const wxChar gbsDescription[] =_T("\

 The wxGridBagSizer is similar to the wxFlexGridSizer except the items are explicitly positioned\n\
 in a virtual cell of the layout grid, and column or row spanning is allowed.  For example, this\n\
 static text is positioned at (0,0) and it spans 7 columns.");
 The wxGridBagSizer is similar to the wxFlexGridSizer except the items are explicitly positioned\n\
 in a virtual cell of the layout grid, and column or row spanning is allowed.  For example, this\n\
 static text is positioned at (0,0) and it spans 7 columns.");


@@ -379,8 +445,8 @@ enum {
     GBS_SHOW_BTN,
     GBS_MOVE_BTN1,
     GBS_MOVE_BTN2,
     GBS_SHOW_BTN,
     GBS_MOVE_BTN1,
     GBS_MOVE_BTN2,

-    
-    GBS_MAX,
+
+    GBS_MAX

 };
 
 
 };
 
 


@@ -399,11 +465,11 @@ MyGridBagSizerFrame::MyGridBagSizerFrame(const wxChar *title, int x, int y )
     m_panel = p;
     m_gbs = new wxGridBagSizer();
 
     m_panel = p;
     m_gbs = new wxGridBagSizer();
 

-    
+

     m_gbs->Add( new wxStaticText(p, wxID_ANY, gbsDescription),
                 POS(0,0), SPAN(1, 7),
                 wxALIGN_CENTER | wxALL, 5);
     m_gbs->Add( new wxStaticText(p, wxID_ANY, gbsDescription),
                 POS(0,0), SPAN(1, 7),
                 wxALIGN_CENTER | wxALL, 5);

-    
+

     m_gbs->Add( TEXTCTRL("pos(1,0)"),   POS(1,0) );
     m_gbs->Add( TEXTCTRL("pos(1,1)"),   POS(1,1) );
     m_gbs->Add( TEXTCTRL("pos(2,0)"),   POS(2,0) );
     m_gbs->Add( TEXTCTRL("pos(1,0)"),   POS(1,0) );
     m_gbs->Add( TEXTCTRL("pos(1,1)"),   POS(1,1) );
     m_gbs->Add( TEXTCTRL("pos(2,0)"),   POS(2,0) );


@@ -415,7 +481,7 @@ MyGridBagSizerFrame::MyGridBagSizerFrame(const wxChar *title, int x, int y )
     m_gbs->Add( TEXTCTRL("pos(5,4)"),   POS(5,4), wxDefaultSpan, wxEXPAND );
     m_gbs->Add( TEXTCTRL("pos(6,5)"),   POS(6,5), wxDefaultSpan, wxEXPAND );
     m_gbs->Add( TEXTCTRL("pos(7,6)"),   POS(7,6) );
     m_gbs->Add( TEXTCTRL("pos(5,4)"),   POS(5,4), wxDefaultSpan, wxEXPAND );
     m_gbs->Add( TEXTCTRL("pos(6,5)"),   POS(6,5), wxDefaultSpan, wxEXPAND );
     m_gbs->Add( TEXTCTRL("pos(7,6)"),   POS(7,6) );

-    
+

     //m_gbs->Add( TEXTCTRL("bad position"), POS(4,3) );  // Test for assert
     //m_gbs->Add( TEXTCTRL("bad position"), POS(5,3) );  // Test for assert
 
     //m_gbs->Add( TEXTCTRL("bad position"), POS(4,3) );  // Test for assert
     //m_gbs->Add( TEXTCTRL("bad position"), POS(5,3) );  // Test for assert
 


@@ -424,28 +490,28 @@ MyGridBagSizerFrame::MyGridBagSizerFrame(const wxChar *title, int x, int y )
     m_moveBtn2 = new wxButton(p, GBS_MOVE_BTN2, _T("Move this to (3,6)"));
     m_gbs->Add( m_moveBtn1, POS(10,2) );
     m_gbs->Add( m_moveBtn2, POS(10,3) );
     m_moveBtn2 = new wxButton(p, GBS_MOVE_BTN2, _T("Move this to (3,6)"));
     m_gbs->Add( m_moveBtn1, POS(10,2) );
     m_gbs->Add( m_moveBtn2, POS(10,3) );

-    
+

     m_hideBtn = new wxButton(p, GBS_HIDE_BTN, _T("Hide this item -->"));
     m_gbs->Add(m_hideBtn, POS(12, 3));
 
     m_hideBtn = new wxButton(p, GBS_HIDE_BTN, _T("Hide this item -->"));
     m_gbs->Add(m_hideBtn, POS(12, 3));
 

-    m_hideTxt = new wxTextCtrl(p, wxID_ANY, _T("pos(12,4), size(150, -1)"),
-                                wxDefaultPosition, wxSize(150,-1));
+    m_hideTxt = new wxTextCtrl(p, wxID_ANY, _T("pos(12,4), size(150, wxDefaultCoord)"),
+                                wxDefaultPosition, wxSize(150,wxDefaultCoord));

     m_gbs->Add( m_hideTxt, POS(12,4) );
     m_gbs->Add( m_hideTxt, POS(12,4) );

-    
+

     m_showBtn = new wxButton(p, GBS_SHOW_BTN, _T("<-- Show it again"));
     m_gbs->Add(m_showBtn, POS(12, 5));
     m_showBtn->Disable();
 
     m_gbs->Add(10,10, POS(14,0));
     m_showBtn = new wxButton(p, GBS_SHOW_BTN, _T("<-- Show it again"));
     m_gbs->Add(m_showBtn, POS(12, 5));
     m_showBtn->Disable();
 
     m_gbs->Add(10,10, POS(14,0));

-    
+

     m_gbs->AddGrowableRow(3);
     m_gbs->AddGrowableCol(2);
     m_gbs->AddGrowableRow(3);
     m_gbs->AddGrowableCol(2);

-    
+

     p->SetSizerAndFit(m_gbs);
     SetClientSize(p->GetSize());
 }
 
     p->SetSizerAndFit(m_gbs);
     SetClientSize(p->GetSize());
 }
 

-    
+

 void MyGridBagSizerFrame::OnHideBtn(wxCommandEvent&)
 {
     m_gbs->Hide(m_hideTxt);
 void MyGridBagSizerFrame::OnHideBtn(wxCommandEvent&)
 {
     m_gbs->Hide(m_hideTxt);


@@ -474,14 +540,14 @@ void MyGridBagSizerFrame::OnMoveBtn(wxCommandEvent& event)
         m_gbs->SetItemPosition(btn, m_lastPos);
         btn->SetLabel(_T("Move this to (3,6)"));
     }
         m_gbs->SetItemPosition(btn, m_lastPos);
         btn->SetLabel(_T("Move this to (3,6)"));
     }

-    else 
+    else

     {
         if ( m_gbs->CheckForIntersection(wxGBPosition(3,6), wxGBSpan(1,1)) )
             wxMessageBox(
 _T("wxGridBagSizer will not allow items to be in the same cell as\n\
 another item, so this operation will fail.  You will also get an assert\n\
 when compiled in debug mode."), _T("Warning"), wxOK | wxICON_INFORMATION);
     {
         if ( m_gbs->CheckForIntersection(wxGBPosition(3,6), wxGBSpan(1,1)) )
             wxMessageBox(
 _T("wxGridBagSizer will not allow items to be in the same cell as\n\
 another item, so this operation will fail.  You will also get an assert\n\
 when compiled in debug mode."), _T("Warning"), wxOK | wxICON_INFORMATION);

-        
+

         if ( m_gbs->SetItemPosition(btn, wxGBPosition(3,6)) )
         {
             m_lastPos = curPos;
         if ( m_gbs->SetItemPosition(btn, wxGBPosition(3,6)) )
         {
             m_lastPos = curPos;


@@ -490,3 +556,105 @@ when compiled in debug mode."), _T("Warning"), wxOK | wxICON_INFORMATION);
     }
     m_gbs->Layout();
 }
     }
     m_gbs->Layout();
 }

+
+// ----------------------------------------------------------------------------
+// MySimpleSizerFrame
+// ----------------------------------------------------------------------------
+
+// Some IDs
+enum {
+    ID_SET_SMALL = 1300,
+    ID_SET_BIG
+};
+
+BEGIN_EVENT_TABLE(MySimpleSizerFrame, wxFrame)
+    EVT_MENU( ID_SET_SMALL, MySimpleSizerFrame::OnSetSmallSize)
+    EVT_MENU( ID_SET_BIG, MySimpleSizerFrame::OnSetBigSize)
+END_EVENT_TABLE()
+
+MySimpleSizerFrame::MySimpleSizerFrame(const wxChar *title, int x, int y )
+    : wxFrame( NULL, wxID_ANY, title, wxPoint(x, y) )
+{
+    wxMenu *menu = new wxMenu;
+
+    menu->Append(ID_SET_SMALL, _T("Make text control small\tF4"));
+    menu->Append(ID_SET_BIG, _T("Make text control big\tF5"));
+
+    wxMenuBar *menu_bar = new wxMenuBar;
+    menu_bar->Append(menu, _T("&File"));
+
+    SetMenuBar( menu_bar );
+
+    wxBoxSizer *main_sizer = new wxBoxSizer( wxHORIZONTAL );
+
+    m_target = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize( 80, wxDefaultCoord ) );
+    main_sizer->Add( m_target, 1, wxALL, 5 );
+
+    main_sizer->Add( new wxStaticText( this, wxID_ANY, wxT("Set alternating sizes using F4 and F5") ), 0, wxALL, 5 );
+
+    SetSizer( main_sizer);
+
+    Layout();
+    GetSizer()->Fit( this );
+}
+
+void MySimpleSizerFrame::OnSetSmallSize( wxCommandEvent& WXUNUSED(event))
+{
+    GetSizer()->SetItemMinSize( m_target, 40, -1 );
+    Layout();
+    GetSizer()->Fit( this );
+}
+
+void MySimpleSizerFrame::OnSetBigSize( wxCommandEvent& WXUNUSED(event))
+{
+    GetSizer()->SetItemMinSize( m_target, 140, -1 );
+    Layout();
+    GetSizer()->Fit( this );
+}
+
+
+// ----------------------------------------------------------------------------
+// MyNestedSizerFrame
+// ----------------------------------------------------------------------------
+
+
+MyNestedSizerFrame::MyNestedSizerFrame(const wxChar *title, int x, int y )
+    : wxFrame( NULL, wxID_ANY, title, wxPoint(x, y) )
+{
+    wxMenu *menu = new wxMenu;
+
+    menu->Append(wxID_ABOUT, _T("Do nothing"));
+
+    wxMenuBar *menu_bar = new wxMenuBar;
+    menu_bar->Append(menu, _T("&File"));
+
+    SetMenuBar( menu_bar );
+
+    wxBoxSizer *main_sizer = new wxBoxSizer( wxVERTICAL );
+
+    main_sizer->Add( new wxStaticText( this, -1, wxT("Hello outside") ), 0, wxALIGN_CENTER );
+    main_sizer->Add( new wxStaticText( this, -1, wxT("Hello outside") ), 0, wxALIGN_CENTER );
+    main_sizer->Add( new wxStaticText( this, -1, wxT("Hello outside") ), 0, wxALIGN_CENTER );
+    main_sizer->Add( new wxStaticText( this, -1, wxT("Hello outside") ), 0, wxALIGN_CENTER );
+
+    wxPanel *panel = new wxPanel( this, -1, wxDefaultPosition, wxDefaultSize, 
+                                  wxTAB_TRAVERSAL | wxSUNKEN_BORDER );
+    main_sizer->Add( panel, 0, wxALIGN_CENTER );
+    wxBoxSizer *panel_sizer = new wxBoxSizer( wxVERTICAL );
+    panel->SetSizer( panel_sizer );
+    panel_sizer->Add( new wxStaticText( panel, -1, wxT("Hello inside") ) );
+    panel_sizer->Add( new wxStaticText( panel, -1, wxT("Hello inside") ) );
+    panel_sizer->Add( new wxStaticText( panel, -1, wxT("Hello inside") ) );
+    
+    main_sizer->Add( new wxStaticText( this, -1, wxT("Hello outside") ), 0, wxALIGN_CENTER );
+
+    m_target = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize( 80, wxDefaultCoord ) );
+    main_sizer->Add( m_target, 1, wxALL|wxGROW, 5 );
+
+    SetSizer( main_sizer);
+
+    Layout();
+    GetSizer()->Fit( this );
+    GetSizer()->SetSizeHints( this );
+}
+