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wxWidgets/samples/treectrl/treetest.cpp
Julian Smart f60d0f944a Got generic wxListCtrl, wxTreeCtrl working under Windows, wxNotebook almost; 
some doc corrections; Win16 dialog crash cured


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1255 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1998-12-23 09:58:02 +00:00

443 lines
13 KiB
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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 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
// under Windows the icons are in the .rc file
#ifndef __WXMSW__
#include "icon1.xpm"
#include "icon2.xpm"
#include "mondrian.xpm"
#endif
#include "wx/log.h"
#include "wx/imaglist.h"
#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(TreeTest_Quit, MyFrame::OnQuit)
EVT_MENU(TreeTest_About, MyFrame::OnAbout)
EVT_MENU(TreeTest_Dump, MyFrame::OnDump)
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)
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_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)
END_EVENT_TABLE()
IMPLEMENT_APP(MyApp)
bool MyApp::OnInit()
{
// Create the main frame window
MyFrame *frame = new MyFrame("wxTreeCtrl Test", 50, 50, 450, 340);
// 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))
{
// 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;
file_menu->Append(TreeTest_About, "&About...");
file_menu->AppendSeparator();
file_menu->Append(TreeTest_Quit, "E&xit");
tree_menu->Append(TreeTest_Dump, "D&ump tree items");
tree_menu->Append(TreeTest_Recreate, "&Recreate the tree");
tree_menu->AppendSeparator();
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->Append(TreeTest_Rename, "Rename item...");
tree_menu->AppendSeparator();
tree_menu->Append(TreeTest_Bold, "Make item &bold");
tree_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");
SetMenuBar(menu_bar);
// Make a panel with a message
m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
wxDefaultPosition, wxDefaultSize,
wxTR_HAS_BUTTONS | 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 wxLog::SetActiveTarget(NULL);
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close(TRUE);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox("Tree test sample\n"
"Julian Smart (c) 1997,\n"
"Vadim Zeitlin (c) 1998",
"About tree test",
wxOK | wxICON_INFORMATION, this);
}
void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
{
wxTreeItemId item = m_treeCtrl->GetSelection();
CHECK_ITEM( item );
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 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);
}
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);
}
// 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;
// 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 blank (using the empty 32x32 icon).
m_imageListNormal->Add(wxBitmap("bitmap1", wxBITMAP_TYPE_BMP_RESOURCE));
m_imageListNormal->Add(wxBitmap("bitmap2", wxBITMAP_TYPE_BMP_RESOURCE));
#else
m_imageListNormal->Add(wxICON(icon1));
m_imageListNormal->Add(wxICON(icon2));
#endif
SetImageList(m_imageListNormal);
// Add some items to the tree
AddTestItemsToTree(3, 2);
}
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 )
{
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;
wxTreeItemId id = AppendItem(idParent, str, image, image,
new MyTreeItemData(str));
AddItemsRecursively(id, numChildren, depth - 1, n + 1);
}
}
//else: done!
}
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::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);
}
// avoid repetition
#define TREE_EVENT_HANDLER(name) \
void MyTreeCtrl::name(wxTreeEvent& WXUNUSED(event)) \
{ \
wxLogMessage(#name); \
}
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)
{
wxLogMessage("OnItemCollapsing");
// for testing, prevent the user from collapsing the root item
wxTreeItemId itemId = event.GetItem();
if ( !GetParent(itemId).IsOk() )
{
wxMessageBox("You can't collapse the root item.");
event.Veto();
}
}
void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent&WXUNUSED(event))
{
wxLogMessage("OnTreeKeyDown");
}
void MyTreeCtrl::OnItemActivated(wxTreeEvent&WXUNUSED(event))
{
// show some info about this item
wxTreeItemId itemId = GetSelection();
MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
if ( item != NULL )
{
item->ShowInfo(this);
}
wxLogMessage("OnItemActivated");
}
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));
}
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