]> git.saurik.com Git - wxWidgets.git/blobdiff - samples/treectrl/treetest.cpp
Added a rule to the tmake templates so the makefiles know how to
[wxWidgets.git] / samples / treectrl / treetest.cpp
index 94a72b0d556884b729dc70dc1f0394c01829b81e..b4cc70b7a260a0aa0f9dfc90e51853f006e6f04b 100644 (file)
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:    wxWindows license
+// Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
-#pragma implementation
-#pragma interface
+  #pragma implementation
+  #pragma interface
 #endif
 
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+  #pragma hdrstop
 #endif
 
 #ifndef WX_PRECOMP
-#include "wx/wx.h"
+  #include "wx/wx.h"
 #endif
 
+#include "wx/log.h"
+
+#include "wx/image.h"
+#include "wx/imaglist.h"
+#include "wx/treectrl.h"
+
+#include "math.h"
+
+#include "treetest.h"
+
+#ifdef wxTR_HAS_VARIABLE_ROW_HIGHT
+#define USE_TR_HAS_VARIABLE_ROW_HIGHT 1
+#else
+#define USE_TR_HAS_VARIABLE_ROW_HIGHT 0
+#endif
+
+// under Windows the icons are in the .rc file
 #ifndef __WXMSW__
+#if !USE_TR_HAS_VARIABLE_ROW_HIGHT
   #include "icon1.xpm"
+#endif
   #include "icon2.xpm"
   #include "mondrian.xpm"
 #endif
 
-#include "wx/treectrl.h"
 
-#include "treetest.h"
+// verify that the item is ok and insult the user if it is not
+#define CHECK_ITEM( item ) if ( !item.IsOk() ) {                            \
+                             wxMessageBox("Please select some item first!", \
+                                          "Tree sample error",              \
+                                          wxOK | wxICON_EXCLAMATION,        \
+                                          this);                            \
+                             return;                                        \
+                           }
 
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
-       EVT_MENU(TREE_QUIT, MyFrame::OnQuit)
-       EVT_MENU(TREE_ABOUT, MyFrame::OnAbout)
+    EVT_MENU(TreeTest_Quit, MyFrame::OnQuit)
+    EVT_MENU(TreeTest_About, MyFrame::OnAbout)
+    EVT_MENU(TreeTest_Dump, MyFrame::OnDump)
+    EVT_MENU(TreeTest_Dump_Selected, MyFrame::OnDumpSelected)
+    EVT_MENU(TreeTest_Rename, MyFrame::OnRename)
+    EVT_MENU(TreeTest_Sort, MyFrame::OnSort)
+    EVT_MENU(TreeTest_SortRev, MyFrame::OnSortRev)
+    EVT_MENU(TreeTest_Bold, MyFrame::OnSetBold)
+    EVT_MENU(TreeTest_UnBold, MyFrame::OnClearBold)
+    EVT_MENU(TreeTest_Delete, MyFrame::OnDelete)
+    EVT_MENU(TreeTest_DeleteChildren, MyFrame::OnDeleteChildren)
+    EVT_MENU(TreeTest_DeleteAll, MyFrame::OnDeleteAll)
+    EVT_MENU(TreeTest_Recreate, MyFrame::OnRecreate)
+    EVT_MENU(TreeTest_CollapseAndReset, MyFrame::OnCollapseAndReset)
+    EVT_MENU(TreeTest_EnsureVisible, MyFrame::OnEnsureVisible)
+    EVT_MENU(TreeTest_AddItem, MyFrame::OnAddItem)
+    EVT_MENU(TreeTest_IncIndent, MyFrame::OnIncIndent)
+    EVT_MENU(TreeTest_DecIndent, MyFrame::OnDecIndent)
+    EVT_MENU(TreeTest_IncSpacing, MyFrame::OnIncSpacing)
+    EVT_MENU(TreeTest_DecSpacing, MyFrame::OnDecSpacing)
 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
-       EVT_TREE_BEGIN_DRAG(TREE_CTRL, MyTreeCtrl::OnBeginDrag)
-       EVT_TREE_BEGIN_RDRAG(TREE_CTRL, MyTreeCtrl::OnBeginRDrag)
-       EVT_TREE_BEGIN_LABEL_EDIT(TREE_CTRL, MyTreeCtrl::OnBeginLabelEdit)
-       EVT_TREE_END_LABEL_EDIT(TREE_CTRL, MyTreeCtrl::OnEndLabelEdit)
-       EVT_TREE_DELETE_ITEM(TREE_CTRL, MyTreeCtrl::OnDeleteItem)
-       EVT_TREE_GET_INFO(TREE_CTRL, MyTreeCtrl::OnGetInfo)
-       EVT_TREE_SET_INFO(TREE_CTRL, MyTreeCtrl::OnSetInfo)
-       EVT_TREE_ITEM_EXPANDED(TREE_CTRL, MyTreeCtrl::OnItemExpanded)
-       EVT_TREE_ITEM_EXPANDING(TREE_CTRL, MyTreeCtrl::OnItemExpanding)
-       EVT_TREE_SEL_CHANGED(TREE_CTRL, MyTreeCtrl::OnSelChanged)
-       EVT_TREE_SEL_CHANGING(TREE_CTRL, MyTreeCtrl::OnSelChanging)
-       EVT_TREE_KEY_DOWN(TREE_CTRL, MyTreeCtrl::OnKeyDown)
+    EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
+    EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
+    EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
+    EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
+    EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
+    EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
+    EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
+    EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
+    EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
+    EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
+    EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
+    EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
+    EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
+    EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
+    EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
+    EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 END_EVENT_TABLE()
 
 IMPLEMENT_APP(MyApp)
 
-// `Main program' equivalent, creating windows and returning main app frame
 bool MyApp::OnInit()
 {
-  // Create the main frame window
-  MyFrame *frame = new MyFrame((wxFrame *) NULL, (char *) "wxTreeCtrl Test", 50, 50, 450, 340);
-
-  // This reduces flicker effects - even better would be to define OnEraseBackground
-  // to do nothing. When the tree control's scrollbars are show or hidden, the
-  // frame is sent a background erase event.
-  frame->SetBackgroundColour(wxColour(255, 255, 255));
-
-  // Give it an icon
-  frame->SetIcon(wxICON(mondrian));
-
-  // Make an image list containing small icons
-  m_imageListNormal = new wxImageList(16, 16, TRUE);
-
-  m_imageListNormal->Add(wxICON(icon1));
-  m_imageListNormal->Add(wxICON(icon2));
-
-  // Make a menubar
-  wxMenu *file_menu = new wxMenu;
-
-  file_menu->Append(TREE_ABOUT, "&About");
-  file_menu->Append(TREE_QUIT, "E&xit");
-  wxMenuBar *menu_bar = new wxMenuBar;
-  menu_bar->Append(file_menu, "&File");
-  frame->SetMenuBar(menu_bar);
-
-  // Make a panel with a message
-  frame->m_treeCtrl = new MyTreeCtrl(frame, TREE_CTRL, wxPoint(0, 0), wxSize(400, 200),
-       wxTR_HAS_BUTTONS|wxSUNKEN_BORDER);
-  frame->m_logWindow = new wxTextCtrl(frame, -1, "", wxPoint(0, 0), wxSize(400, 200),
-       wxTE_MULTILINE|wxSUNKEN_BORDER);
-
-  wxLayoutConstraints *c = new wxLayoutConstraints;
-  c->top.SameAs                        (frame, wxTop);
-  c->left.SameAs               (frame, wxLeft);
-  c->right.SameAs              (frame, wxRight);
-  c->height.PercentOf  (frame, wxHeight, 66);
-  frame->m_treeCtrl->SetConstraints(c);
-
-  c = new wxLayoutConstraints;
-  c->top.Below                 (frame->m_treeCtrl);
-  c->left.SameAs               (frame, wxLeft);
-  c->right.SameAs              (frame, wxRight);
-  c->bottom.SameAs             (frame, wxBottom);
-  frame->m_logWindow->SetConstraints(c);
-  frame->SetAutoLayout(TRUE);
-
-  frame->m_treeCtrl->SetImageList(wxGetApp().m_imageListNormal, wxIMAGE_LIST_NORMAL);
-
-  wxTreeItemId rootId = frame->m_treeCtrl->AddRoot("Root", 0);
-
-  char buf[20];
-  int i;
-  wxString str;
-
-  for ( i = 0; i < 10; i++)
-  {
-       sprintf(buf, "Folder child %d", i);
-    str = buf;
-    wxTreeItemId id = frame->m_treeCtrl->AppendItem(rootId, str, 0);
-       int j;
-    for ( j = 0; j < 5; j++)
-    {
-         sprintf(buf, "File child %d", j);
-      str = buf;
-      frame->m_treeCtrl->AppendItem(id, str, 1);
-    }
-  }
-  for ( i = 0; i < 10; i++)
-  {
-       sprintf(buf, "File child %d", i);
-    str = buf;
-    frame->m_treeCtrl->AppendItem(rootId, str, 1);
-  }
+    // Create the main frame window
+    MyFrame *frame = new MyFrame("wxTreeCtrl Test", 50, 50, 450, 340);
 
-  frame->CreateStatusBar(3);
-  frame->SetStatusText("", 0);
+    // Show the frame
+    frame->Show(TRUE);
+    SetTopWindow(frame);
 
-  // Show the frame
-  frame->Show(TRUE);
-  
-  SetTopWindow(frame);
-
-  return TRUE;
+    return TRUE;
 }
 
+
 // My frame constructor
-MyFrame::MyFrame(wxFrame *frame, char *title, int x, int y, int w, int h):
-  wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h))
+MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
+       : wxFrame((wxFrame *)NULL, -1, title, wxPoint(x, y), wxSize(w, h))
 {
-       m_treeCtrl = (MyTreeCtrl *) NULL;
-       m_logWindow = (wxTextCtrl *) NULL;
+    // This reduces flicker effects - even better would be to define
+    // OnEraseBackground to do nothing. When the tree control's scrollbars are
+    // show or hidden, the frame is sent a background erase event.
+    SetBackgroundColour(wxColour(255, 255, 255));
+
+    // Give it an icon
+    SetIcon(wxICON(mondrian));
+
+    // Make a menubar
+    wxMenu *file_menu = new wxMenu,
+           *tree_menu = new wxMenu,
+           *item_menu = new wxMenu;
+
+    file_menu->Append(TreeTest_About, "&About...");
+    file_menu->AppendSeparator();
+    file_menu->Append(TreeTest_Quit, "E&xit");
+
+    tree_menu->Append(TreeTest_Recreate, "&Recreate the tree");
+    tree_menu->Append(TreeTest_CollapseAndReset, "C&ollapse and reset");
+    tree_menu->AppendSeparator();
+    tree_menu->Append(TreeTest_AddItem, "Append a &new item");
+    tree_menu->Append(TreeTest_Delete, "&Delete this item");
+    tree_menu->Append(TreeTest_DeleteChildren, "Delete &children");
+    tree_menu->Append(TreeTest_DeleteAll, "Delete &all items");
+    tree_menu->AppendSeparator();
+    tree_menu->Append(TreeTest_Sort, "Sort children of current item");
+    tree_menu->Append(TreeTest_SortRev, "Sort in reversed order");
+    tree_menu->AppendSeparator();
+    tree_menu->Append(TreeTest_EnsureVisible, "Make the last item &visible");
+    tree_menu->AppendSeparator();
+    tree_menu->Append(TreeTest_IncIndent, "Add 5 points to indentation\tAlt-I");
+    tree_menu->Append(TreeTest_DecIndent, "Reduce indentation by 5 points\tAlt-R");
+    tree_menu->AppendSeparator();
+    tree_menu->Append(TreeTest_IncSpacing, "Add 5 points to spacing\tCtrl-I");
+    tree_menu->Append(TreeTest_DecSpacing, "Reduce spacing by 5 points\tCtrl-R");
+
+    item_menu->AppendSeparator();
+    item_menu->Append(TreeTest_Dump, "&Dump item children");
+#ifdef wxTR_MULTIPLE
+    item_menu->Append(TreeTest_Dump_Selected, "Dump selected items\tAlt-S");
+#endif
+    item_menu->Append(TreeTest_Rename, "&Rename item...");
+
+    item_menu->AppendSeparator();
+    item_menu->Append(TreeTest_Bold, "Make item &bold");
+    item_menu->Append(TreeTest_UnBold, "Make item &not bold");
+
+    wxMenuBar *menu_bar = new wxMenuBar;
+    menu_bar->Append(file_menu, "&File");
+    menu_bar->Append(tree_menu, "&Tree");
+    menu_bar->Append(item_menu, "&Item");
+    SetMenuBar(menu_bar);
+
+    m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
+                                wxDefaultPosition, wxDefaultSize,
+                                wxTR_HAS_BUTTONS | 
+#ifdef wxTR_MULTIPLE
+                               wxTR_MULTIPLE |
+#endif
+#if USE_TR_HAS_VARIABLE_ROW_HIGHT
+                               wxTR_HAS_VARIABLE_ROW_HIGHT |
+#endif
+                               wxSUNKEN_BORDER);
+    wxTextCtrl *textCtrl = new wxTextCtrl(this, -1, "",
+                                wxDefaultPosition, wxDefaultSize,
+                                wxTE_MULTILINE | wxSUNKEN_BORDER);
+
+    wxLayoutConstraints *c = new wxLayoutConstraints;
+    c->top.SameAs(this, wxTop);
+    c->left.SameAs(this, wxLeft);
+    c->right.SameAs(this, wxRight);
+    c->height.PercentOf(this, wxHeight, 66);
+    m_treeCtrl->SetConstraints(c);
+
+    c = new wxLayoutConstraints;
+    c->top.Below(m_treeCtrl);
+    c->left.SameAs(this, wxLeft);
+    c->right.SameAs(this, wxRight);
+    c->bottom.SameAs(this, wxBottom);
+    textCtrl->SetConstraints(c);
+    SetAutoLayout(TRUE);
+
+    // create a status bar with 3 panes
+    CreateStatusBar(3);
+    SetStatusText("", 0);
+
+#ifdef __WXMOTIF__
+    // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
+    // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
+    delete wxLog::SetActiveTarget(new wxLogStderr);
+#else
+    // set our text control as the log target
+    wxLogTextCtrl *logWindow = new wxLogTextCtrl(textCtrl);
+    delete wxLog::SetActiveTarget(logWindow);
+#endif
 }
 
 MyFrame::~MyFrame()
 {
-       delete wxGetApp().m_imageListNormal;
+    delete wxLog::SetActiveTarget(NULL);
 }
 
-void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 {
-  Close(TRUE);
+    Close(TRUE);
 }
 
-void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {
-  wxMessageDialog dialog(this, "Tree test sample\nJulian Smart (c) 1997",
-       "About tree test", wxOK|wxCANCEL);
-
-  dialog.ShowModal();
+    wxMessageBox("Tree test sample\n"
+                 "Julian Smart (c) 1997,\n"
+                 "Vadim Zeitlin (c) 1998",
+                 "About tree test",
+                 wxOK | wxICON_INFORMATION, this);
 }
 
-// MyTreeCtrl
-
-void MyTreeCtrl::OnBeginDrag(wxTreeEvent& WXUNUSED(event) )
+void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
-
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+    wxTreeItemId item = m_treeCtrl->GetSelection();
 
-#ifndef __GNUWIN32__
-       ostream str(text);
+    CHECK_ITEM( item );
 
-       str << "OnBeginDrag\n";
-       str.flush();
-#endif
+    static wxString s_text;
+    s_text = wxGetTextFromUser("New name: ", "Tree sample question",
+            s_text, this);
+    if ( !s_text.IsEmpty() )
+    {
+        m_treeCtrl->SetItemText(item, s_text);
+    }
 }
 
-void MyTreeCtrl::OnBeginRDrag(wxTreeEvent& WXUNUSED(event) )
+void MyFrame::DoSort(bool reverse)
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    wxTreeItemId item = m_treeCtrl->GetSelection();
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+    CHECK_ITEM( item );
 
-#ifndef __GNUWIN32__
-       ostream str(text);
-
-       str << "OnBeginRDrag\n";
-       str.flush();
-#endif
+    m_treeCtrl->DoSortChildren(item, reverse);
 }
 
-void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& WXUNUSED(event) )
+void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    wxTreeItemId root = m_treeCtrl->GetSelection();
+
+    CHECK_ITEM( root );
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+    m_treeCtrl->GetItemsRecursively(root, -1);
+}
+
+void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
+{
+#ifdef wxTR_MULTIPLE 
+   wxArrayTreeItemIds array;
 
-#ifndef __GNUWIN32__
-       ostream str(text);
+    m_treeCtrl->GetSelections(array);
+    size_t nos=array.Count();
+    wxLogMessage(wxString("items selected : ")<< (int)nos);
 
-       str << "OnBeginLabelEdit\n";
-       str.flush();
+    for (size_t n=0; n<nos; ++n)
+      wxLogMessage(m_treeCtrl->GetItemText(array.Item(n)));
 #endif
 }
 
-void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& WXUNUSED(event) )
+void MyFrame::DoSetBold(bool bold)
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    wxTreeItemId item = m_treeCtrl->GetSelection();
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+    CHECK_ITEM( item );
 
-#ifndef __GNUWIN32__
-       ostream str(text);
-
-       str << "OnEndLabelEdit\n";
-       str.flush();
-#endif
+    m_treeCtrl->SetItemBold(item, bold);
 }
 
-void MyTreeCtrl::OnDeleteItem(wxTreeEvent& WXUNUSED(event) )
+void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    wxTreeItemId item = m_treeCtrl->GetSelection();
+
+    CHECK_ITEM( item );
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+    m_treeCtrl->Delete(item);
+}
 
-#ifndef __GNUWIN32__
-       ostream str(text);
+void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
+{
+    wxTreeItemId item = m_treeCtrl->GetSelection();
 
-       str << "OnDeleteItem\n";
-       str.flush();
-#endif
+    CHECK_ITEM( item );
+
+    m_treeCtrl->DeleteChildren(item);
 }
 
-void MyTreeCtrl::OnGetInfo(wxTreeEvent& WXUNUSED(event) )
+void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    m_treeCtrl->DeleteAllItems();
+}
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+void MyFrame::OnRecreate(wxCommandEvent& event)
+{
+    OnDeleteAll(event);
+    m_treeCtrl->AddTestItemsToTree(3, 2);
+}
 
-#ifndef __GNUWIN32__
-       ostream str(text);
+void MyFrame::OnCollapseAndReset(wxCommandEvent& event)
+{
+    m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
+}
 
-       str << "OnGetInfo\n";
-       str.flush();
-#endif
+void MyFrame::OnEnsureVisible(wxCommandEvent& event)
+{
+    m_treeCtrl->DoEnsureVisible();
 }
 
-void MyTreeCtrl::OnSetInfo(wxTreeEvent& WXUNUSED(event) )
+void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    static int s_num = 0;
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+    wxString text;
+    text.Printf("Item #%d", ++s_num);
 
-#ifndef __GNUWIN32__
-       ostream str(text);
+    m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
+                           text /*,
+                           MyTreeCtrl::TreeCtrlIcon_File */ );
+}
 
-       str << "OnSetInfo\n";
-       str.flush();
-#endif
+void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
+{
+    unsigned int indent = m_treeCtrl->GetIndent();
+    if (indent < 100)
+        m_treeCtrl->SetIndent( indent+5 );
 }
 
-void MyTreeCtrl::OnItemExpanded(wxTreeEvent& WXUNUSED(event) )
+void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    unsigned int indent = m_treeCtrl->GetIndent();
+    if (indent > 10)
+        m_treeCtrl->SetIndent( indent-5 );
+}
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
+{
+    unsigned int indent = m_treeCtrl->GetSpacing();
+    if (indent < 100)
+        m_treeCtrl->SetSpacing( indent+5 );
+}
+
+void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
+{
+    unsigned int indent = m_treeCtrl->GetSpacing();
+    if (indent > 10)
+        m_treeCtrl->SetSpacing( indent-5 );
+}
+
+// MyTreeCtrl implementation
+IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 
-#ifndef __GNUWIN32__
-       ostream str(text);
+MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
+                       const wxPoint& pos, const wxSize& size,
+                       long style)
+          : wxTreeCtrl(parent, id, pos, size, style)
+{
+#if (USE_TR_HAS_VARIABLE_ROW_HIGHT && wxUSE_LIBJPEG)
+    wxImage::AddHandler(new wxJPEGHandler); 
+    wxImage image;
+
+    image.LoadFile(wxString("horse.jpg"), wxBITMAP_TYPE_JPEG );
+#endif
 
-       str << "OnItemExpanded\n";
-       str.flush();
+    m_reverseSort = FALSE;
+
+    // Make an image list containing small icons
+    m_imageListNormal = new wxImageList(16, 16, TRUE);
+
+    // should correspond to TreeCtrlIcon_xxx enum
+#if defined(__WXMSW__) && defined(__WIN16__)
+    // This is required in 16-bit Windows mode only because we can't load a specific (16x16)
+    // icon image, so it comes out stretched
+#  if USE_TR_HAS_VARIABLE_ROW_HIGHT
+    m_imageListNormal->Add(image.ConvertToBitmap());
+#  else
+    m_imageListNormal->Add(wxBitmap("bitmap1", wxBITMAP_TYPE_BMP_RESOURCE));
+#  endif
+    m_imageListNormal->Add(wxBitmap("bitmap2", wxBITMAP_TYPE_BMP_RESOURCE));
+#else
+#  if USE_TR_HAS_VARIABLE_ROW_HIGHT
+    m_imageListNormal->Add(image.ConvertToBitmap());
+#  else
+    m_imageListNormal->Add(wxICON(icon1));
+#  endif
+    m_imageListNormal->Add(wxICON(icon2));
 #endif
+
+    SetImageList(m_imageListNormal);
+
+    // Add some items to the tree
+    AddTestItemsToTree(3, 2);
 }
 
-void MyTreeCtrl::OnItemExpanding(wxTreeEvent& WXUNUSED(event) )
+MyTreeCtrl::~MyTreeCtrl()
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    delete m_imageListNormal;
+}
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
+                               const wxTreeItemId& item2)
+{
+    if ( m_reverseSort )
+    {
+        // just exchange 1st and 2nd items
+        return wxTreeCtrl::OnCompareItems(item2, item1);
+    }
+    else
+    {
+        return wxTreeCtrl::OnCompareItems(item1, item2);
+    }
+}
 
-#ifndef __GNUWIN32__
-       ostream str(text);
+void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
+                                     size_t numChildren,
+                                     size_t depth,
+                                     size_t folder)
+{
+    if ( depth > 0 )
+    {
+        wxString str;
+        for ( size_t n = 0; n < numChildren; n++ )
+        {
+            // at depth 1 elements won't have any more children
+            if (depth == 1)
+                str.Printf("%s child %d.%d", "File", folder, n + 1);
+            else
+                str.Printf("%s child %d", "Folder", n + 1);
+
+//            int image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
+            int image = depth == 1 ? -1 : TreeCtrlIcon_Folder;
+            wxTreeItemId id = AppendItem(idParent, str, image, image,
+                                         new MyTreeItemData(str));
+
+            // remember the last child for OnEnsureVisible()
+            if ( depth == 1 && n == numChildren - 1 )
+            {
+                m_lastItem = id;
+            }
+
+            AddItemsRecursively(id, numChildren, depth - 1, n + 1);
+        }
+    }
+    //else: done!
+}
 
-       str << "OnItemExpanding\n";
-       str.flush();
-#endif
+void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
+                                    size_t depth)
+{
+    wxTreeItemId rootId = AddRoot("Root",
+                                  TreeCtrlIcon_Folder, TreeCtrlIcon_Folder,
+                                  new MyTreeItemData("Root item"));
+
+    AddItemsRecursively(rootId, numChildren, depth, 0);
 }
 
-void MyTreeCtrl::OnSelChanged(wxTreeEvent& WXUNUSED(event) )
+void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent, long cookie)
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    wxTreeItemId id;
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+    if( cookie == -1 )
+        id = GetFirstChild(idParent, cookie);
+    else
+        id = GetNextChild(idParent, cookie);
 
-#ifndef __GNUWIN32__
-       ostream str(text);
+    if(id <= 0)
+        return;
 
-       str << "OnSelChanged\n";
-       str.flush();
-#endif
+    wxString text=GetItemText(id);
+    wxLogMessage(text);
+
+    if (ItemHasChildren(id))
+        GetItemsRecursively(id,-1);
+
+    GetItemsRecursively(idParent, cookie);
+}
+
+
+// avoid repetition
+#define TREE_EVENT_HANDLER(name)                            \
+void MyTreeCtrl::name(wxTreeEvent& WXUNUSED(event))         \
+{                                                           \
+    wxLogMessage(#name);                                    \
 }
 
-void MyTreeCtrl::OnSelChanging(wxTreeEvent& WXUNUSED(event) )
+TREE_EVENT_HANDLER(OnBeginDrag)
+TREE_EVENT_HANDLER(OnBeginRDrag)
+TREE_EVENT_HANDLER(OnBeginLabelEdit)
+TREE_EVENT_HANDLER(OnEndLabelEdit)
+TREE_EVENT_HANDLER(OnDeleteItem)
+TREE_EVENT_HANDLER(OnGetInfo)
+TREE_EVENT_HANDLER(OnSetInfo)
+TREE_EVENT_HANDLER(OnItemExpanded)
+TREE_EVENT_HANDLER(OnItemExpanding)
+TREE_EVENT_HANDLER(OnItemCollapsed)
+TREE_EVENT_HANDLER(OnSelChanged)
+TREE_EVENT_HANDLER(OnSelChanging)
+
+#undef TREE_EVENT_HANDLER
+
+void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    wxLogMessage("OnItemCollapsing");
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+    // for testing, prevent the user from collapsing the first child folder
+    wxTreeItemId itemId = event.GetItem();
+    if ( GetParent(itemId) == GetRootItem() && !GetPrevSibling(itemId) )
+    {
+        wxMessageBox("You can't collapse this item.");
 
-#ifndef __GNUWIN32__
-       ostream str(text);
+        event.Veto();
+    }
+}
 
-       str << "OnSelChanging\n";
-       str.flush();
-#endif
+void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent&WXUNUSED(event))
+{
+    wxLogMessage("OnTreeKeyDown");
 }
 
-void MyTreeCtrl::OnKeyDown(wxTreeEvent& WXUNUSED(event) )
+void MyTreeCtrl::OnItemActivated(wxTreeEvent&WXUNUSED(event))
 {
-       if ( !wxGetApp().GetTopWindow() )
-               return;
+    // show some info about this item
+    wxTreeItemId itemId = GetSelection();
+    MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
 
-       wxTextCtrl *text = ((MyFrame *)wxGetApp().GetTopWindow())->m_logWindow;
-       if ( !text )
-               return;
+    if ( item != NULL )
+    {
+        item->ShowInfo(this);
+    }
 
-#ifndef __GNUWIN32__
-       ostream str(text);
+    wxLogMessage("OnItemActivated");
+}
 
-       str << "OnKeyDown\n";
-       str.flush();
-#endif
+void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
+{
+    wxTreeItemId id = HitTest(event.GetPosition());
+    if ( !id )
+        wxLogMessage("No item under mouse");
+    else
+    {
+        MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
+        if ( item )
+            wxLogMessage("Item '%s' under mouse", item->GetDesc());
+    }
+}
+
+static inline const char *Bool2String(bool b)
+{
+    return b ? "" : "not ";
 }
 
+void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
+{
+    wxLogMessage("Item '%s': %sselected, %sexpanded, %sbold,\n"
+                 "%u children (%u immediately under this item).",
+                 m_desc.c_str(),
+                 Bool2String(tree->IsSelected(GetId())),
+                 Bool2String(tree->IsExpanded(GetId())),
+                 Bool2String(tree->IsBold(GetId())),
+                 tree->GetChildrenCount(GetId()),
+                 tree->GetChildrenCount(GetId(), FALSE));
+}