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wxWidgets/samples/treectrl/treetest.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: treetest.cpp
// Purpose: wxTreeCtrl sample
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation
#pragma interface
#endif
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#include "wx/log.h"
#endif
#include "wx/colordlg.h"
#include "wx/numdlg.h"
#include "wx/image.h"
#include "wx/imaglist.h"
#include "wx/treectrl.h"
#include "math.h"
#ifdef __WIN32__
// this is not supported by native control
#define NO_VARIABLE_HEIGHT
#endif
#include "treetest.h"
#include "icon1.xpm"
#include "icon2.xpm"
#include "icon3.xpm"
#include "icon4.xpm"
#include "icon5.xpm"
#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__)
#include "mondrian.xpm"
#endif
// verify that the item is ok and insult the user if it is not
#define CHECK_ITEM( item ) if ( !item.IsOk() ) { \
wxMessageBox(wxT("Please select some item first!"), \
wxT("Tree sample error"), \
wxOK | wxICON_EXCLAMATION, \
this); \
return; \
}
#define MENU_LINK(name) EVT_MENU(TreeTest_##name, MyFrame::On##name)
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_IDLE(MyFrame::OnIdle)
EVT_SIZE(MyFrame::OnSize)
MENU_LINK(Quit)
MENU_LINK(About)
MENU_LINK(TogButtons)
MENU_LINK(TogTwist)
MENU_LINK(TogLines)
MENU_LINK(TogEdit)
MENU_LINK(TogHideRoot)
MENU_LINK(TogRootLines)
MENU_LINK(TogBorder)
MENU_LINK(TogFullHighlight)
MENU_LINK(SetFgColour)
MENU_LINK(SetBgColour)
MENU_LINK(ResetStyle)
MENU_LINK(Dump)
#ifndef NO_MULTIPLE_SELECTION
MENU_LINK(DumpSelected)
MENU_LINK(Select)
MENU_LINK(Unselect)
MENU_LINK(ToggleSel)
#endif // NO_MULTIPLE_SELECTION
MENU_LINK(Rename)
MENU_LINK(Count)
MENU_LINK(CountRec)
MENU_LINK(Sort)
MENU_LINK(SortRev)
MENU_LINK(SetBold)
MENU_LINK(ClearBold)
MENU_LINK(Delete)
MENU_LINK(DeleteChildren)
MENU_LINK(DeleteAll)
MENU_LINK(Recreate)
MENU_LINK(ToggleImages)
MENU_LINK(ToggleButtons)
MENU_LINK(SetImageSize)
MENU_LINK(CollapseAndReset)
MENU_LINK(EnsureVisible)
MENU_LINK(AddItem)
MENU_LINK(InsertItem)
MENU_LINK(IncIndent)
MENU_LINK(DecIndent)
MENU_LINK(IncSpacing)
MENU_LINK(DecSpacing)
MENU_LINK(ToggleIcon)
MENU_LINK(SelectRoot)
#undef MENU_LINK
END_EVENT_TABLE()
#if USE_GENERIC_TREECTRL
BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
#else
BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
#endif
EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
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)
#if 0 // there are so many of those that logging them causes flicker
EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
#endif
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_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRightClick)
EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
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)
bool MyApp::OnInit()
{
// Create the main frame window
MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
// Show the frame
frame->Show(true);
SetTopWindow(frame);
return true;
}
// My frame constructor
MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
: wxFrame((wxFrame *)NULL, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
m_treeCtrl(NULL)
#if wxUSE_LOG
, m_textCtrl(NULL)
#endif // wxUSE_LOG
{
// 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));
#if wxUSE_MENUS
// Make a menubar
wxMenu *file_menu = new wxMenu,
*style_menu = new wxMenu,
*tree_menu = new wxMenu,
*item_menu = new wxMenu;
file_menu->Append(TreeTest_About, wxT("&About..."));
file_menu->AppendSeparator();
file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
style_menu->AppendCheckItem(TreeTest_TogButtons, wxT("Toggle &normal buttons"));
style_menu->AppendCheckItem(TreeTest_TogTwist, wxT("Toggle &twister buttons"));
style_menu->AppendCheckItem(TreeTest_ToggleButtons, wxT("Toggle image &buttons"));
style_menu->AppendSeparator();
style_menu->AppendCheckItem(TreeTest_TogLines, wxT("Toggle &connecting lines"));
style_menu->AppendCheckItem(TreeTest_TogRootLines, wxT("Toggle &lines at root"));
style_menu->AppendCheckItem(TreeTest_TogHideRoot, wxT("Toggle &hidden root"));
style_menu->AppendCheckItem(TreeTest_TogBorder, wxT("Toggle &item border"));
style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"));
style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode"));
#ifndef NO_MULTIPLE_SELECTION
style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode"));
#endif // NO_MULTIPLE_SELECTION
style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges"));
style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
style_menu->AppendSeparator();
style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
style_menu->AppendSeparator();
style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
tree_menu->AppendSeparator();
tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item"));
tree_menu->AppendSeparator();
tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
tree_menu->AppendSeparator();
tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
tree_menu->AppendSeparator();
tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
tree_menu->AppendSeparator();
tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
tree_menu->AppendSeparator();
tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
item_menu->AppendSeparator();
item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
item_menu->AppendSeparator();
item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
#ifndef NO_MULTIPLE_SELECTION
item_menu->AppendSeparator();
item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
#endif // NO_MULTIPLE_SELECTION
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, wxT("&File"));
menu_bar->Append(style_menu, wxT("&Style"));
menu_bar->Append(tree_menu, wxT("&Tree"));
menu_bar->Append(item_menu, wxT("&Item"));
SetMenuBar(menu_bar);
#endif // wxUSE_MENUS
#if wxUSE_LOG
// create the controls
m_textCtrl = new wxTextCtrl(this, wxID_ANY, wxT(""),
wxDefaultPosition, wxDefaultSize,
wxTE_MULTILINE | wxSUNKEN_BORDER);
#endif // wxUSE_LOG
CreateTreeWithDefStyle();
menu_bar->Check(TreeTest_ToggleImages, true);
#if wxUSE_STATUSBAR
// create a status bar
CreateStatusBar(2);
#endif // wxUSE_STATUSBAR
#if wxUSE_LOG
#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(m_textCtrl);
delete wxLog::SetActiveTarget(logWindow);
#endif
#endif // wxUSE_LOG
}
MyFrame::~MyFrame()
{
#if wxUSE_LOG
delete wxLog::SetActiveTarget(NULL);
#endif // wxUSE_LOG
}
void MyFrame::CreateTreeWithDefStyle()
{
long style = wxTR_DEFAULT_STYLE |
#ifndef NO_VARIABLE_HEIGHT
wxTR_HAS_VARIABLE_ROW_HEIGHT |
#endif
wxTR_EDIT_LABELS;
CreateTree(style | wxSUNKEN_BORDER);
// as we don't know what wxTR_DEFAULT_STYLE could contain, test for
// everything
wxMenuBar *mbar = GetMenuBar();
mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
}
void MyFrame::CreateTree(long style)
{
m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
wxDefaultPosition, wxDefaultSize,
style);
Resize();
}
void MyFrame::TogStyle(int id, long flag)
{
long style = m_treeCtrl->GetWindowStyle() ^ flag;
// most treectrl styles can't be changed on the fly using the native
// control and the tree must be recreated
#ifndef __WXMSW__
m_treeCtrl->SetWindowStyle(style);
#else // MSW
delete m_treeCtrl;
CreateTree(style);
#endif // !MSW/MSW
GetMenuBar()->Check(id, (style & flag) != 0);
}
void MyFrame::OnIdle(wxIdleEvent& event)
{
#if wxUSE_STATUSBAR
if ( m_treeCtrl )
{
wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
SetStatusText(wxString::Format
(
_T("Root/last item is %svisible/%svisible"),
m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
m_treeCtrl->IsVisible(m_treeCtrl->GetLastChild(idRoot))
? _T("") : _T("not ")
), 1);
}
#endif // wxUSE_STATUSBAR
event.Skip();
}
void MyFrame::OnSize(wxSizeEvent& event)
{
if ( m_treeCtrl
#if wxUSE_LOG
&& m_textCtrl
#endif // wxUSE_LOG
)
{
Resize();
}
event.Skip();
}
void MyFrame::Resize()
{
wxSize size = GetClientSize();
m_treeCtrl->SetSize(0, 0, size.x, size.y
#if !wxUSE_LOG
);
#else
*2/3);
m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
#endif
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close(true);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox(wxT("Tree test sample\n")
wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
wxT("About tree test"),
wxOK | wxICON_INFORMATION, this);
}
void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
{
wxTreeItemId item = m_treeCtrl->GetSelection();
CHECK_ITEM( item );
// old code - now we edit in place
#if 0
static wxString s_text;
s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
s_text, this);
if ( !s_text.IsEmpty() )
{
m_treeCtrl->SetItemText(item, s_text);
}
#endif // 0
// TODO demonstrate creating a custom edit control...
(void)m_treeCtrl->EditLabel(item);
}
void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
{
wxTreeItemId item = m_treeCtrl->GetSelection();
CHECK_ITEM( item );
int i = m_treeCtrl->GetChildrenCount( item, false );
wxLogMessage(wxT("%d children"), i);
}
void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
{
wxTreeItemId item = m_treeCtrl->GetSelection();
CHECK_ITEM( item );
int i = m_treeCtrl->GetChildrenCount( item );
wxLogMessage(wxT("%d children"), i);
}
void MyFrame::DoSort(bool reverse)
{
wxTreeItemId item = m_treeCtrl->GetSelection();
CHECK_ITEM( item );
m_treeCtrl->DoSortChildren(item, reverse);
}
void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
{
wxTreeItemId root = m_treeCtrl->GetSelection();
CHECK_ITEM( root );
m_treeCtrl->GetItemsRecursively(root);
}
#ifndef NO_MULTIPLE_SELECTION
void MyFrame::OnToggleSel(wxCommandEvent& event)
{
TogStyle(event.GetId(), wxTR_MULTIPLE);
}
void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
{
wxArrayTreeItemIds array;
size_t count = m_treeCtrl->GetSelections(array);
wxLogMessage(wxT("%u items selected"), count);
for ( size_t n = 0; n < count; n++ )
{
wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
}
}
void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
{
m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
}
void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
{
m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
}
void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
{
m_treeCtrl->UnselectAll();
}
#endif // NO_MULTIPLE_SELECTION
void MyFrame::DoSetBold(bool bold)
{
wxTreeItemId item = m_treeCtrl->GetSelection();
CHECK_ITEM( item );
m_treeCtrl->SetItemBold(item, bold);
}
void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
{
wxTreeItemId item = m_treeCtrl->GetSelection();
CHECK_ITEM( item );
m_treeCtrl->Delete(item);
}
void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
{
wxTreeItemId item = m_treeCtrl->GetSelection();
CHECK_ITEM( item );
m_treeCtrl->DeleteChildren(item);
}
void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
{
m_treeCtrl->DeleteAllItems();
}
void MyFrame::OnRecreate(wxCommandEvent& event)
{
OnDeleteAll(event);
m_treeCtrl->AddTestItemsToTree(5, 2);
}
void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
{
int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
wxT("Size: "),
wxT("TreeCtrl sample"),
m_treeCtrl->ImageSize());
if ( size == -1 )
return;
m_treeCtrl->CreateImageList(size);
wxGetApp().SetShowImages(true);
}
void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
{
if ( wxGetApp().ShowImages() )
{
m_treeCtrl->CreateImageList(-1);
wxGetApp().SetShowImages(false);
}
else
{
m_treeCtrl->CreateImageList(0);
wxGetApp().SetShowImages(true);
}
}
void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
{
#if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
if ( wxGetApp().ShowButtons() )
{
m_treeCtrl->CreateButtonsImageList(-1);
wxGetApp().SetShowButtons(false);
}
else
{
m_treeCtrl->CreateButtonsImageList(15);
wxGetApp().SetShowButtons(true);
}
#endif
}
void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
{
m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
}
void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
{
m_treeCtrl->DoEnsureVisible();
}
void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
{
int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
}
void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
{
static int s_num = 0;
wxString text;
text.Printf(wxT("Item #%d"), ++s_num);
m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
text /*,
MyTreeCtrl::TreeCtrlIcon_File */ );
}
void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
{
unsigned int indent = m_treeCtrl->GetIndent();
if (indent < 100)
m_treeCtrl->SetIndent( indent+5 );
}
void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
{
unsigned int indent = m_treeCtrl->GetIndent();
if (indent > 10)
m_treeCtrl->SetIndent( indent-5 );
}
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 );
}
void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
{
wxTreeItemId item = m_treeCtrl->GetSelection();
CHECK_ITEM( item );
m_treeCtrl->DoToggleIcon(item);
}
void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
{
wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
if ( col.Ok() )
m_treeCtrl->SetForegroundColour(col);
}
void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
{
wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
if ( col.Ok() )
m_treeCtrl->SetBackgroundColour(col);
}
// MyTreeCtrl implementation
#if USE_GENERIC_TREECTRL
IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
#else
IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
#endif
MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
const wxPoint& pos, const wxSize& size,
long style)
: wxTreeCtrl(parent, id, pos, size, style)
{
m_reverseSort = false;
CreateImageList();
// Add some items to the tree
AddTestItemsToTree(5, 2);
}
void MyTreeCtrl::CreateImageList(int size)
{
if ( size == -1 )
{
SetImageList(NULL);
return;
}
if ( size == 0 )
size = m_imageSize;
else
m_imageSize = size;
// Make an image list containing small icons
wxImageList *images = new wxImageList(size, size, true);
// should correspond to TreeCtrlIcon_xxx enum
wxBusyCursor wait;
wxIcon icons[5];
icons[0] = wxIcon(icon1_xpm);
icons[1] = wxIcon(icon2_xpm);
icons[2] = wxIcon(icon3_xpm);
icons[3] = wxIcon(icon4_xpm);
icons[4] = wxIcon(icon5_xpm);
int sizeOrig = icons[0].GetWidth();
for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
{
if ( size == sizeOrig )
{
images->Add(icons[i]);
}
else
{
images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
}
}
AssignImageList(images);
}
#if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
void MyTreeCtrl::CreateButtonsImageList(int size)
{
if ( size == -1 )
{
SetButtonsImageList(NULL);
return;
}
// Make an image list containing small icons
wxImageList *images = new wxImageList(size, size, true);
// should correspond to TreeCtrlIcon_xxx enum
wxBusyCursor wait;
wxIcon icons[4];
icons[0] = wxIcon(icon3_xpm); // closed
icons[1] = wxIcon(icon3_xpm); // closed, selected
icons[2] = wxIcon(icon5_xpm); // open
icons[3] = wxIcon(icon5_xpm); // open, selected
for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
{
int sizeOrig = icons[i].GetWidth();
if ( size == sizeOrig )
{
images->Add(icons[i]);
}
else
{
images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
}
}
AssignButtonsImageList(images);
#else
void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
{
#endif
}
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);
}
}
void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
size_t numChildren,
size_t depth,
size_t folder)
{
if ( depth > 0 )
{
bool hasChildren = depth > 1;
wxString str;
for ( size_t n = 0; n < numChildren; n++ )
{
// at depth 1 elements won't have any more children
if ( hasChildren )
str.Printf(wxT("%s child %d"), wxT("Folder"), n + 1);
else
str.Printf(wxT("%s child %d.%d"), wxT("File"), folder, n + 1);
// here we pass to AppendItem() normal and selected item images (we
// suppose that selected image follows the normal one in the enum)
int image, imageSel;
if ( wxGetApp().ShowImages() )
{
image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
imageSel = image + 1;
}
else
{
image = imageSel = -1;
}
wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
new MyTreeItemData(str));
// and now we also set the expanded one (only for the folders)
if ( hasChildren && wxGetApp().ShowImages() )
{
SetItemImage(id, TreeCtrlIcon_FolderOpened,
wxTreeItemIcon_Expanded);
}
// remember the last child for OnEnsureVisible()
if ( !hasChildren && n == numChildren - 1 )
{
m_lastItem = id;
}
AddItemsRecursively(id, numChildren, depth - 1, n + 1);
}
}
//else: done!
}
void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
size_t depth)
{
int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
wxTreeItemId rootId = AddRoot(wxT("Root"),
image, image,
new MyTreeItemData(wxT("Root item")));
if ( image != -1 )
{
SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
}
AddItemsRecursively(rootId, numChildren, depth, 0);
// set some colours/fonts for testing
SetItemFont(rootId, *wxITALIC_FONT);
wxTreeItemIdValue cookie;
wxTreeItemId id = GetFirstChild(rootId, cookie);
SetItemTextColour(id, *wxBLUE);
id = GetNextChild(rootId, cookie);
id = GetNextChild(rootId, cookie);
SetItemTextColour(id, *wxRED);
SetItemBackgroundColour(id, *wxLIGHT_GREY);
}
void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
wxTreeItemIdValue cookie)
{
wxTreeItemId id;
if ( !cookie )
id = GetFirstChild(idParent, cookie);
else
id = GetNextChild(idParent, cookie);
if ( !id.IsOk() )
return;
wxString text = GetItemText(id);
wxLogMessage(text);
if (ItemHasChildren(id))
GetItemsRecursively(id);
GetItemsRecursively(idParent, cookie);
}
void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
{
int image = GetItemImage(item) == TreeCtrlIcon_Folder ? TreeCtrlIcon_File
: TreeCtrlIcon_Folder;
SetItemImage(item, image);
}
// avoid repetition
#define TREE_EVENT_HANDLER(name) \
void MyTreeCtrl::name(wxTreeEvent& event) \
{ \
wxLogMessage(wxT(#name)); \
SetLastItem(wxTreeItemId()); \
event.Skip(); \
}
TREE_EVENT_HANDLER(OnBeginRDrag)
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 LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
{
wxString key;
long keycode = event.GetKeyCode();
{
switch ( keycode )
{
case WXK_BACK: key = wxT("BACK"); break;
case WXK_TAB: key = wxT("TAB"); break;
case WXK_RETURN: key = wxT("RETURN"); break;
case WXK_ESCAPE: key = wxT("ESCAPE"); break;
case WXK_SPACE: key = wxT("SPACE"); break;
case WXK_DELETE: key = wxT("DELETE"); break;
case WXK_START: key = wxT("START"); break;
case WXK_LBUTTON: key = wxT("LBUTTON"); break;
case WXK_RBUTTON: key = wxT("RBUTTON"); break;
case WXK_CANCEL: key = wxT("CANCEL"); break;
case WXK_MBUTTON: key = wxT("MBUTTON"); break;
case WXK_CLEAR: key = wxT("CLEAR"); break;
case WXK_SHIFT: key = wxT("SHIFT"); break;
case WXK_ALT: key = wxT("ALT"); break;
case WXK_CONTROL: key = wxT("CONTROL"); break;
case WXK_MENU: key = wxT("MENU"); break;
case WXK_PAUSE: key = wxT("PAUSE"); break;
case WXK_CAPITAL: key = wxT("CAPITAL"); break;
case WXK_PRIOR: key = wxT("PRIOR"); break;
case WXK_NEXT: key = wxT("NEXT"); break;
case WXK_END: key = wxT("END"); break;
case WXK_HOME: key = wxT("HOME"); break;
case WXK_LEFT: key = wxT("LEFT"); break;
case WXK_UP: key = wxT("UP"); break;
case WXK_RIGHT: key = wxT("RIGHT"); break;
case WXK_DOWN: key = wxT("DOWN"); break;
case WXK_SELECT: key = wxT("SELECT"); break;
case WXK_PRINT: key = wxT("PRINT"); break;
case WXK_EXECUTE: key = wxT("EXECUTE"); break;
case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
case WXK_INSERT: key = wxT("INSERT"); break;
case WXK_HELP: key = wxT("HELP"); break;
case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
case WXK_ADD: key = wxT("ADD"); break;
case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
case WXK_DECIMAL: key = wxT("DECIMAL"); break;
case WXK_DIVIDE: key = wxT("DIVIDE"); break;
case WXK_F1: key = wxT("F1"); break;
case WXK_F2: key = wxT("F2"); break;
case WXK_F3: key = wxT("F3"); break;
case WXK_F4: key = wxT("F4"); break;
case WXK_F5: key = wxT("F5"); break;
case WXK_F6: key = wxT("F6"); break;
case WXK_F7: key = wxT("F7"); break;
case WXK_F8: key = wxT("F8"); break;
case WXK_F9: key = wxT("F9"); break;
case WXK_F10: key = wxT("F10"); break;
case WXK_F11: key = wxT("F11"); break;
case WXK_F12: key = wxT("F12"); break;
case WXK_F13: key = wxT("F13"); break;
case WXK_F14: key = wxT("F14"); break;
case WXK_F15: key = wxT("F15"); break;
case WXK_F16: key = wxT("F16"); break;
case WXK_F17: key = wxT("F17"); break;
case WXK_F18: key = wxT("F18"); break;
case WXK_F19: key = wxT("F19"); break;
case WXK_F20: key = wxT("F20"); break;
case WXK_F21: key = wxT("F21"); break;
case WXK_F22: key = wxT("F22"); break;
case WXK_F23: key = wxT("F23"); break;
case WXK_F24: key = wxT("F24"); break;
case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
case WXK_SCROLL: key = wxT("SCROLL"); break;
case WXK_PAGEUP: key = wxT("PAGEUP"); break;
case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
case WXK_NUMPAD_PRIOR: key = wxT("NUMPAD_PRIOR"); break;
case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
default:
{
if ( wxIsprint((int)keycode) )
key.Printf(wxT("'%c'"), (char)keycode);
else if ( keycode > 0 && keycode < 27 )
key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
else
key.Printf(wxT("unknown (%ld)"), keycode);
}
}
}
wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
name,
key.c_str(),
event.ControlDown() ? wxT('C') : wxT('-'),
event.AltDown() ? wxT('A') : wxT('-'),
event.ShiftDown() ? wxT('S') : wxT('-'),
event.MetaDown() ? wxT('M') : wxT('-'));
}
void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
{
LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
event.Skip();
}
void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
{
// need to explicitly allow drag
if ( event.GetItem() != GetRootItem() )
{
m_draggedItem = event.GetItem();
wxLogMessage(wxT("OnBeginDrag: started dragging %s"),
GetItemText(m_draggedItem).c_str());
event.Allow();
}
else
{
wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
}
}
void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
{
wxTreeItemId itemSrc = m_draggedItem,
itemDst = event.GetItem();
m_draggedItem = (wxTreeItemId)0l;
// where to copy the item?
if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
{
// copy to the parent then
itemDst = GetItemParent(itemDst);
}
if ( !itemDst.IsOk() )
{
wxLogMessage(wxT("OnEndDrag: can't drop here."));
return;
}
wxString text = GetItemText(itemSrc);
wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
text.c_str(), GetItemText(itemDst).c_str());
// just do append here - we could also insert it just before/after the item
// on which it was dropped, but this requires slightly more work... we also
// completely ignore the client data and icon of the old item but could
// copy them as well.
//
// Finally, we only copy one item here but we might copy the entire tree if
// we were dragging a folder.
int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
AppendItem(itemDst, text, image);
}
void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
{
wxLogMessage(wxT("OnBeginLabelEdit"));
// for testing, prevent this item's label editing
wxTreeItemId itemId = event.GetItem();
if ( IsTestItem(itemId) )
{
wxMessageBox(wxT("You can't edit this item."));
event.Veto();
}
}
void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
{
wxLogMessage(wxT("OnEndLabelEdit"));
// don't allow anything except letters in the labels
if ( !event.GetLabel().IsWord() )
{
wxMessageBox(wxT("The new label should be a single word."));
event.Veto();
}
}
void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
{
wxLogMessage(wxT("OnItemCollapsing"));
// for testing, prevent the user from collapsing the first child folder
wxTreeItemId itemId = event.GetItem();
if ( IsTestItem(itemId) )
{
wxMessageBox(wxT("You can't collapse this item."));
event.Veto();
}
}
void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
{
// show some info about this item
wxTreeItemId itemId = event.GetItem();
MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
if ( item != NULL )
{
item->ShowInfo(this);
}
wxLogMessage(wxT("OnItemActivated"));
}
void MyTreeCtrl::OnItemRightClick(wxTreeEvent& event)
{
ShowMenu(event.GetItem(), event.GetPoint());
}
void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
{
wxPoint pt = event.GetPosition();
wxTreeItemId item = GetSelection();
wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
//check if event was generated by keyboard (MSW-specific?)
if (pt.x==-1 && pt.y==-1) //(this is how MSW indicates it)
{
//attempt to guess where to show the menu
if (item.IsOk())
{
//if an item was clicked, show menu to the right of it
wxRect rect;
GetBoundingRect(item, rect, true); //true = only the label
pt = wxPoint(rect.GetRight(), rect.GetTop());
}
else
{
pt = wxPoint(0, 0);
}
}
else
{
//event was generated by mouse, use supplied coords
pt = ScreenToClient(pt);
}
ShowMenu(item, pt);
}
void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
{
wxString title;
if ( id.IsOk() )
{
title << wxT("Menu for ") << GetItemText(id);
}
else
{
title = wxT("Menu for no particular item");
}
#if wxUSE_MENUS
wxMenu menu(title);
menu.Append(TreeTest_About, wxT("&About..."));
menu.Append(TreeTest_Dump, wxT("&Dump"));
PopupMenu(&menu, pt);
#endif // wxUSE_MENUS
}
void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
{
wxTreeItemId id = HitTest(event.GetPosition());
if ( !id )
wxLogMessage(wxT("No item under mouse"));
else
{
MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
if ( item )
wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
}
}
static inline const wxChar *Bool2String(bool b)
{
return b ? wxT("") : wxT("not ");
}
void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
{
wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
wxT("%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));
}
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