wxWidgets/samples/treectrl/treetest.cpp
Vadim Zeitlin 2c8e47380e 1. wxShell fixes: now really uses shell (it wasn't different from wxExecute!)
and also added a version which captures the programs output
2. fix for compilers which have void ftime() (my mingw does) in timercmn.cpp
3. updated console sample to test wxShell/wxExecute
4. treetest now can toggle images or change their size
5. wxTreeCtrl doesn't crash if it has no image list


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6404 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2000-03-03 10:31:34 +00:00

850 lines
25 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: treetest.cpp
// Purpose: wxTreeCtrl sample
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
// 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"
#endif
#include "wx/log.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"
// under Windows the icons are in the .rc file
#ifndef __WXMSW__
#include "icon1.xpm"
#include "icon2.xpm"
#include "icon3.xpm"
#include "icon4.xpm"
#include "icon5.xpm"
#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("Please select some item first!", \
"Tree sample error", \
wxOK | wxICON_EXCLAMATION, \
this); \
return; \
}
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_SIZE(MyFrame::OnSize)
EVT_MENU(TreeTest_Quit, MyFrame::OnQuit)
EVT_MENU(TreeTest_About, MyFrame::OnAbout)
EVT_MENU(TreeTest_Dump, MyFrame::OnDump)
#ifndef NO_MULTIPLE_SELECTION
EVT_MENU(TreeTest_DumpSelected, MyFrame::OnDumpSelected)
EVT_MENU(TreeTest_Select, MyFrame::OnSelect)
EVT_MENU(TreeTest_Unselect, MyFrame::OnUnselect)
EVT_MENU(TreeTest_ToggleSel, MyFrame::OnToggleSel)
#endif // NO_MULTIPLE_SELECTION
EVT_MENU(TreeTest_Rename, MyFrame::OnRename)
EVT_MENU(TreeTest_Count, MyFrame::OnCount)
EVT_MENU(TreeTest_CountRec, MyFrame::OnCountRec)
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_ToggleImages, MyFrame::OnToggleImages)
EVT_MENU(TreeTest_SetImageSize, MyFrame::OnSetImageSize)
EVT_MENU(TreeTest_CollapseAndReset, MyFrame::OnCollapseAndReset)
EVT_MENU(TreeTest_EnsureVisible, MyFrame::OnEnsureVisible)
EVT_MENU(TreeTest_AddItem, MyFrame::OnAddItem)
EVT_MENU(TreeTest_InsertItem, MyFrame::OnInsertItem)
EVT_MENU(TreeTest_IncIndent, MyFrame::OnIncIndent)
EVT_MENU(TreeTest_DecIndent, MyFrame::OnDecIndent)
EVT_MENU(TreeTest_IncSpacing, MyFrame::OnIncSpacing)
EVT_MENU(TreeTest_DecSpacing, MyFrame::OnDecSpacing)
EVT_MENU(TreeTest_ToggleIcon, MyFrame::OnToggleIcon)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
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_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("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, -1, title, wxPoint(x, y), wxSize(w, h)),
m_treeCtrl(NULL), m_textCtrl(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\tAlt-X");
#ifndef NO_MULTIPLE_SELECTION
tree_menu->Append(TreeTest_ToggleSel, "&Toggle selection mode");
#endif // NO_MULTIPLE_SELECTION
tree_menu->Append(TreeTest_ToggleImages, "&Show images", "", TRUE);
tree_menu->Append(TreeTest_SetImageSize, "Set image si&ze...");
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_InsertItem, "&Insert 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_Count, "Count children of current item");
tree_menu->Append(TreeTest_CountRec, "Recursively count children of current item");
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->Append(TreeTest_Dump, "&Dump item children");
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");
item_menu->AppendSeparator();
item_menu->Append(TreeTest_ToggleIcon, "Toggle the items &icon");
#ifndef NO_MULTIPLE_SELECTION
item_menu->AppendSeparator();
item_menu->Append(TreeTest_DumpSelected, "Dump selected items\tAlt-D");
item_menu->Append(TreeTest_Select, "Select current item\tAlt-S");
item_menu->Append(TreeTest_Unselect, "Unselect everything\tAlt-U");
#endif // NO_MULTIPLE_SELECTION
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);
menu_bar->Check(TreeTest_ToggleImages, TRUE);
m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
wxDefaultPosition, wxDefaultSize,
wxTR_HAS_BUTTONS |
wxTR_EDIT_LABELS |
#ifndef NO_VARIABLE_HEIGHT
wxTR_HAS_VARIABLE_ROW_HEIGHT |
#endif
wxSUNKEN_BORDER);
m_treeCtrl->SetBackgroundColour(wxColour(204, 205, 79));
m_textCtrl = new wxTextCtrl(this, -1, "",
wxDefaultPosition, wxDefaultSize,
wxTE_MULTILINE | wxSUNKEN_BORDER);
// 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(m_textCtrl);
delete wxLog::SetActiveTarget(logWindow);
#endif
}
MyFrame::~MyFrame()
{
delete wxLog::SetActiveTarget(NULL);
}
void MyFrame::OnSize(wxSizeEvent& event)
{
if ( m_treeCtrl && m_textCtrl )
{
Resize(GetClientSize());
}
event.Skip();
}
void MyFrame::Resize(const wxSize& size)
{
m_treeCtrl->SetSize(0, 0, size.x, 2*size.y/3);
m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close(TRUE);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox("Tree test sample\n"
"(c) Julian Smart 1997, Vadim Zeitlin 1998",
"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("New name: ", "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, -1);
}
#ifndef NO_MULTIPLE_SELECTION
void MyFrame::OnToggleSel(wxCommandEvent& WXUNUSED(event))
{
long style = m_treeCtrl->GetWindowStyle();
if ( style & wxTR_MULTIPLE )
style &= ~wxTR_MULTIPLE;
else
style |= wxTR_MULTIPLE;
delete m_treeCtrl;
m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
wxDefaultPosition, wxDefaultSize,
style);
Resize(GetClientSize());
}
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("\t%s", m_treeCtrl->GetItemText(array.Item(n)).c_str());
}
}
void MyFrame::OnSelect(wxCommandEvent& event)
{
m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
}
void MyFrame::OnUnselect(wxCommandEvent& 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(3, 2);
}
void MyFrame::OnSetImageSize(wxCommandEvent& event)
{
long size = wxGetNumberFromUser("Enter the size for the images to use",
"Size: ",
"TreeCtrl sample",
32);
if ( size == -1 )
return;
m_treeCtrl->CreateImageList((int)size);
OnRecreate(event);
}
void MyFrame::OnToggleImages(wxCommandEvent& event)
{
wxGetApp().SetShowImages(!wxGetApp().ShowImages());
OnRecreate(event);
}
void MyFrame::OnCollapseAndReset(wxCommandEvent& event)
{
m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
}
void MyFrame::OnEnsureVisible(wxCommandEvent& 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, "2nd item");
}
void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
{
static int s_num = 0;
wxString text;
text.Printf("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);
}
// MyTreeCtrl implementation
IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
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(3, 2);
}
void MyTreeCtrl::CreateImageList(int size)
{
delete m_imageListNormal;
if ( size == -1 )
{
m_imageListNormal = NULL;
return;
}
// Make an image list containing small icons
m_imageListNormal = new wxImageList(size, size, TRUE);
// should correspond to TreeCtrlIcon_xxx enum
#if defined(__WXMSW__) && defined(__WIN16__)
m_imageListNormal->Add(wxBitmap("bitmap1", wxBITMAP_TYPE_BMP_RESOURCE));
m_imageListNormal->Add(wxBitmap("bitmap2", wxBITMAP_TYPE_BMP_RESOURCE));
m_imageListNormal->Add(wxBitmap("bitmap3", wxBITMAP_TYPE_BMP_RESOURCE));
m_imageListNormal->Add(wxBitmap("bitmap4", wxBITMAP_TYPE_BMP_RESOURCE));
m_imageListNormal->Add(wxBitmap("bitmap5", wxBITMAP_TYPE_BMP_RESOURCE));
#else
wxIcon icons[5];
icons[0] = wxICON(icon1);
icons[1] = wxICON(icon2);
icons[2] = wxICON(icon3);
icons[3] = wxICON(icon4);
icons[4] = wxICON(icon5);
int sizeOrig = icons[0].GetWidth();
for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
{
if ( size == sizeOrig )
{
m_imageListNormal->Add(icons[i]);
}
else
{
m_imageListNormal->Add(wxImage(icons[i]).Rescale(size, size).
ConvertToBitmap());
}
}
#endif
SetImageList(m_imageListNormal);
}
MyTreeCtrl::~MyTreeCtrl()
{
delete m_imageListNormal;
}
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("%s child %d", "Folder", n + 1);
else
str.Printf("%s child %d.%d", "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("Root",
image, image,
new MyTreeItemData("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);
long 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, long cookie)
{
wxTreeItemId id;
if( cookie == -1 )
id = GetFirstChild(idParent, cookie);
else
id = GetNextChild(idParent, cookie);
if(id <= 0)
return;
wxString text = GetItemText(id);
wxLogMessage(text);
if (ItemHasChildren(id))
GetItemsRecursively(id,-1);
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(#name); \
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)
TREE_EVENT_HANDLER(OnTreeKeyDown)
#undef TREE_EVENT_HANDLER
void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
{
// need to explicitly allow drag
if ( event.GetItem() != GetRootItem() )
{
m_draggedItem = event.GetItem();
wxLogMessage("OnBeginDrag: started dragging %s",
GetItemText(m_draggedItem).c_str());
event.Allow();
}
else
{
wxLogMessage("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 = GetParent(itemDst);
}
if ( !itemDst.IsOk() )
{
wxLogMessage("OnEndDrag: can't drop here.");
return;
}
wxString text = GetItemText(itemSrc);
wxLogMessage("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("OnBeginLabelEdit");
// for testing, prevent this items label editing
wxTreeItemId itemId = event.GetItem();
if ( IsTestItem(itemId) )
{
wxMessageBox("You can't edit this item.");
event.Veto();
}
}
void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
{
wxLogMessage("OnEndLabelEdit");
// don't allow anything except letters in the labels
if ( !event.GetLabel().IsWord() )
{
wxMessageBox("The label should contain only letters.");
event.Veto();
}
}
void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
{
wxLogMessage("OnItemCollapsing");
// for testing, prevent the user from collapsing the first child folder
wxTreeItemId itemId = event.GetItem();
if ( IsTestItem(itemId) )
{
wxMessageBox("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("OnItemActivated");
}
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));
}