f60d0f944a
some doc corrections; Win16 dialog crash cured git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1255 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
443 lines
13 KiB
C++
443 lines
13 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: treetest.cpp
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// Purpose: wxTreeCtrl sample
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// Author: Julian Smart
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// Modified by:
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// Created: 04/01/98
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart and Markus Holzem
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// Licence: wxWindows license
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation
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#pragma interface
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#endif
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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// under Windows the icons are in the .rc file
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#ifndef __WXMSW__
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#include "icon1.xpm"
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#include "icon2.xpm"
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#include "mondrian.xpm"
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#endif
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#include "wx/log.h"
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#include "wx/imaglist.h"
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#include "wx/treectrl.h"
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#include "treetest.h"
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// verify that the item is ok and insult the user if it is not
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#define CHECK_ITEM( item ) if ( !item.IsOk() ) { \
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wxMessageBox("Please select some item first!", \
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"Tree sample error", \
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wxOK | wxICON_EXCLAMATION, \
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this); \
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return; \
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}
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BEGIN_EVENT_TABLE(MyFrame, wxFrame)
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EVT_MENU(TreeTest_Quit, MyFrame::OnQuit)
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EVT_MENU(TreeTest_About, MyFrame::OnAbout)
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EVT_MENU(TreeTest_Dump, MyFrame::OnDump)
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EVT_MENU(TreeTest_Rename, MyFrame::OnRename)
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EVT_MENU(TreeTest_Sort, MyFrame::OnSort)
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EVT_MENU(TreeTest_SortRev, MyFrame::OnSortRev)
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EVT_MENU(TreeTest_Bold, MyFrame::OnSetBold)
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EVT_MENU(TreeTest_UnBold, MyFrame::OnClearBold)
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EVT_MENU(TreeTest_Delete, MyFrame::OnDelete)
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EVT_MENU(TreeTest_DeleteChildren, MyFrame::OnDeleteChildren)
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EVT_MENU(TreeTest_DeleteAll, MyFrame::OnDeleteAll)
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EVT_MENU(TreeTest_Recreate, MyFrame::OnRecreate)
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END_EVENT_TABLE()
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BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
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EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
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EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
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EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
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EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
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EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
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EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
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EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
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EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
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EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
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EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
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EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
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EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
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EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
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EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
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EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
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END_EVENT_TABLE()
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IMPLEMENT_APP(MyApp)
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bool MyApp::OnInit()
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{
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// Create the main frame window
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MyFrame *frame = new MyFrame("wxTreeCtrl Test", 50, 50, 450, 340);
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// Show the frame
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frame->Show(TRUE);
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SetTopWindow(frame);
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return TRUE;
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}
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// My frame constructor
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MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
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: wxFrame((wxFrame *)NULL, -1, title, wxPoint(x, y), wxSize(w, h))
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{
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// This reduces flicker effects - even better would be to define
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// OnEraseBackground to do nothing. When the tree control's scrollbars are
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// show or hidden, the frame is sent a background erase event.
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SetBackgroundColour(wxColour(255, 255, 255));
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// Give it an icon
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SetIcon(wxICON(mondrian));
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// Make a menubar
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wxMenu *file_menu = new wxMenu,
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*tree_menu = new wxMenu;
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file_menu->Append(TreeTest_About, "&About...");
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file_menu->AppendSeparator();
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file_menu->Append(TreeTest_Quit, "E&xit");
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tree_menu->Append(TreeTest_Dump, "D&ump tree items");
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tree_menu->Append(TreeTest_Recreate, "&Recreate the tree");
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tree_menu->AppendSeparator();
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tree_menu->Append(TreeTest_Delete, "&Delete this item");
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tree_menu->Append(TreeTest_DeleteChildren, "Delete &children");
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tree_menu->Append(TreeTest_DeleteAll, "Delete &all items");
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tree_menu->AppendSeparator();
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tree_menu->Append(TreeTest_Sort, "Sort children of current item");
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tree_menu->Append(TreeTest_SortRev, "Sort in reversed order");
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tree_menu->Append(TreeTest_Rename, "Rename item...");
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tree_menu->AppendSeparator();
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tree_menu->Append(TreeTest_Bold, "Make item &bold");
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tree_menu->Append(TreeTest_UnBold, "Make item ¬ bold");
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wxMenuBar *menu_bar = new wxMenuBar;
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menu_bar->Append(file_menu, "&File");
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menu_bar->Append(tree_menu, "&Tree");
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SetMenuBar(menu_bar);
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// Make a panel with a message
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m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
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wxDefaultPosition, wxDefaultSize,
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wxTR_HAS_BUTTONS | wxSUNKEN_BORDER);
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wxTextCtrl *textCtrl = new wxTextCtrl(this, -1, "",
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wxDefaultPosition, wxDefaultSize,
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wxTE_MULTILINE | wxSUNKEN_BORDER);
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wxLayoutConstraints *c = new wxLayoutConstraints;
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c->top.SameAs(this, wxTop);
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c->left.SameAs(this, wxLeft);
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c->right.SameAs(this, wxRight);
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c->height.PercentOf(this, wxHeight, 66);
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m_treeCtrl->SetConstraints(c);
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c = new wxLayoutConstraints;
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c->top.Below(m_treeCtrl);
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c->left.SameAs(this, wxLeft);
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c->right.SameAs(this, wxRight);
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c->bottom.SameAs(this, wxBottom);
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textCtrl->SetConstraints(c);
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SetAutoLayout(TRUE);
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// create a status bar with 3 panes
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CreateStatusBar(3);
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SetStatusText("", 0);
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#ifdef __WXMOTIF__
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// For some reason, we get a memcpy crash in wxLogStream::DoLogStream
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// on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
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delete wxLog::SetActiveTarget(new wxLogStderr);
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#else
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// set our text control as the log target
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wxLogTextCtrl *logWindow = new wxLogTextCtrl(textCtrl);
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delete wxLog::SetActiveTarget(logWindow);
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#endif
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}
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MyFrame::~MyFrame()
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{
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delete wxLog::SetActiveTarget(NULL);
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}
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void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
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{
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Close(TRUE);
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}
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void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
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{
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wxMessageBox("Tree test sample\n"
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"Julian Smart (c) 1997,\n"
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"Vadim Zeitlin (c) 1998",
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"About tree test",
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wxOK | wxICON_INFORMATION, this);
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}
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void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
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{
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wxTreeItemId item = m_treeCtrl->GetSelection();
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CHECK_ITEM( item );
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static wxString s_text;
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s_text = wxGetTextFromUser("New name: ", "Tree sample question",
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s_text, this);
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if ( !s_text.IsEmpty() )
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{
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m_treeCtrl->SetItemText(item, s_text);
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}
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}
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void MyFrame::DoSort(bool reverse)
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{
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wxTreeItemId item = m_treeCtrl->GetSelection();
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CHECK_ITEM( item );
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m_treeCtrl->DoSortChildren(item, reverse);
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}
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void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
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{
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wxTreeItemId root = m_treeCtrl->GetSelection();
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CHECK_ITEM( root );
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m_treeCtrl->GetItemsRecursively(root, -1);
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}
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void MyFrame::DoSetBold(bool bold)
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{
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wxTreeItemId item = m_treeCtrl->GetSelection();
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CHECK_ITEM( item );
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m_treeCtrl->SetItemBold(item, bold);
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}
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void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
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{
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wxTreeItemId item = m_treeCtrl->GetSelection();
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CHECK_ITEM( item );
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m_treeCtrl->Delete(item);
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}
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void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
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{
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wxTreeItemId item = m_treeCtrl->GetSelection();
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CHECK_ITEM( item );
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m_treeCtrl->DeleteChildren(item);
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}
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void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
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{
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m_treeCtrl->DeleteAllItems();
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}
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void MyFrame::OnRecreate(wxCommandEvent& event)
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{
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OnDeleteAll(event);
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m_treeCtrl->AddTestItemsToTree(3, 2);
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}
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// MyTreeCtrl implementation
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IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
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MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
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const wxPoint& pos, const wxSize& size,
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long style)
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: wxTreeCtrl(parent, id, pos, size, style)
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{
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m_reverseSort = FALSE;
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// Make an image list containing small icons
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m_imageListNormal = new wxImageList(16, 16, TRUE);
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// should correspond to TreeCtrlIcon_xxx enum
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#if defined(__WXMSW__) && defined(__WIN16__)
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// This is required in 16-bit Windows mode only because we can't load a specific (16x16)
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// icon image, so it comes out blank (using the empty 32x32 icon).
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m_imageListNormal->Add(wxBitmap("bitmap1", wxBITMAP_TYPE_BMP_RESOURCE));
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m_imageListNormal->Add(wxBitmap("bitmap2", wxBITMAP_TYPE_BMP_RESOURCE));
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#else
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m_imageListNormal->Add(wxICON(icon1));
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m_imageListNormal->Add(wxICON(icon2));
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#endif
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SetImageList(m_imageListNormal);
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// Add some items to the tree
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AddTestItemsToTree(3, 2);
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}
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MyTreeCtrl::~MyTreeCtrl()
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{
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delete m_imageListNormal;
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}
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int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
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const wxTreeItemId& item2)
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{
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if ( m_reverseSort )
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{
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// just exchange 1st and 2nd items
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return wxTreeCtrl::OnCompareItems(item2, item1);
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}
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else
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{
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return wxTreeCtrl::OnCompareItems(item1, item2);
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}
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}
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void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
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size_t numChildren,
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size_t depth,
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size_t folder)
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{
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if ( depth > 0 )
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{
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wxString str;
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for ( size_t n = 0; n < numChildren; n++ )
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{
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// at depth 1 elements won't have any more children
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if (depth == 1)
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str.Printf("%s child %d.%d", "File", folder, n + 1);
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else
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str.Printf("%s child %d","Folder", n + 1);
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int image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
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wxTreeItemId id = AppendItem(idParent, str, image, image,
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new MyTreeItemData(str));
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AddItemsRecursively(id, numChildren, depth - 1, n + 1);
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}
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}
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//else: done!
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}
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void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
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size_t depth)
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{
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wxTreeItemId rootId = AddRoot("Root",
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TreeCtrlIcon_Folder, TreeCtrlIcon_Folder,
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new MyTreeItemData("Root item"));
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AddItemsRecursively(rootId, numChildren, depth, 0);
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}
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void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent, long cookie)
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{
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wxTreeItemId id;
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if( cookie == -1 )
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id = GetFirstChild(idParent, cookie);
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else
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id = GetNextChild(idParent, cookie);
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if(id <= 0)
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return;
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wxString text=GetItemText(id);
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wxLogMessage(text);
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if (ItemHasChildren(id))
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GetItemsRecursively(id,-1);
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GetItemsRecursively(idParent, cookie);
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}
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// avoid repetition
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#define TREE_EVENT_HANDLER(name) \
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void MyTreeCtrl::name(wxTreeEvent& WXUNUSED(event)) \
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{ \
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wxLogMessage(#name); \
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}
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TREE_EVENT_HANDLER(OnBeginDrag)
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TREE_EVENT_HANDLER(OnBeginRDrag)
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TREE_EVENT_HANDLER(OnBeginLabelEdit)
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TREE_EVENT_HANDLER(OnEndLabelEdit)
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TREE_EVENT_HANDLER(OnDeleteItem)
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TREE_EVENT_HANDLER(OnGetInfo)
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TREE_EVENT_HANDLER(OnSetInfo)
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TREE_EVENT_HANDLER(OnItemExpanded)
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TREE_EVENT_HANDLER(OnItemExpanding)
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TREE_EVENT_HANDLER(OnItemCollapsed)
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TREE_EVENT_HANDLER(OnSelChanged)
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TREE_EVENT_HANDLER(OnSelChanging)
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#undef TREE_EVENT_HANDLER
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void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
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{
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wxLogMessage("OnItemCollapsing");
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// for testing, prevent the user from collapsing the root item
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wxTreeItemId itemId = event.GetItem();
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if ( !GetParent(itemId).IsOk() )
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{
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wxMessageBox("You can't collapse the root item.");
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event.Veto();
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}
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}
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void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent&WXUNUSED(event))
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{
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wxLogMessage("OnTreeKeyDown");
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}
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void MyTreeCtrl::OnItemActivated(wxTreeEvent&WXUNUSED(event))
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{
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// show some info about this item
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wxTreeItemId itemId = GetSelection();
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MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
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if ( item != NULL )
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{
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item->ShowInfo(this);
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}
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wxLogMessage("OnItemActivated");
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}
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static inline const char *Bool2String(bool b)
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{
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return b ? "" : "not ";
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}
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void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
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{
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wxLogMessage("Item '%s': %sselected, %sexpanded, %sbold,\n"
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"%u children (%u immediately under this item).",
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m_desc.c_str(),
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Bool2String(tree->IsSelected(GetId())),
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Bool2String(tree->IsExpanded(GetId())),
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Bool2String(tree->IsBold(GetId())),
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tree->GetChildrenCount(GetId()),
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tree->GetChildrenCount(GetId(), FALSE));
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}
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