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wxWidgets/samples/regtest/regtest.cpp
Vadim Zeitlin c2b1eaf8ca minor change 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@582 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1998-08-17 22:22:29 +00:00

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///////////////////////////////////////////////////////////////////////////////
// Name: registry.cpp
// Purpose: wxRegKey class demo
// Author: Vadim Zeitlin
// Modified by:
// Created: 03.04.98
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows license
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "wx/log.h"
#include "wx/treectrl.h"
#include "wx/msw/registry.h"
// ----------------------------------------------------------------------------
// application type
// ----------------------------------------------------------------------------
class RegApp : public wxApp
{
public:
bool OnInit(void);
};
// ----------------------------------------------------------------------------
// image list with registry icons
// ----------------------------------------------------------------------------
class RegImageList : public wxImageList
{
public:
enum Icon
{
Root,
ClosedKey,
OpenedKey,
TextValue,
BinaryValue,
};
RegImageList();
};
// ----------------------------------------------------------------------------
// our control
// ----------------------------------------------------------------------------
class RegTreeCtrl : public wxTreeCtrl
{
public:
// ctor & dtor
RegTreeCtrl(wxWindow *parent, wxWindowID id);
virtual ~RegTreeCtrl();
// notifications
void OnDeleteItem (wxTreeEvent& event);
void OnItemExpanding(wxTreeEvent& event);
void OnSelChanged (wxTreeEvent& event);
void OnRightClick (wxMouseEvent& event);
void OnChar (wxKeyEvent& event);
// forwarded notifications (by the frame)
void OnMenuTest();
// operations
void DeleteSelected();
void CreateNewKey(const wxString& strName);
void CreateNewTextValue(const wxString& strName);
void CreateNewBinaryValue(const wxString& strName);
// information
bool IsKeySelected() const;
DECLARE_EVENT_TABLE();
private:
// array of children of the node
struct TreeNode;
WX_DEFINE_ARRAY(TreeNode *, TreeChildren);
// structure describing a registry key/value
struct TreeNode
{
RegTreeCtrl *m_pTree; // must be !NULL
TreeNode *m_pParent; // NULL only for the root node
long m_id; // the id of the tree control item
wxString m_strName; // name of the key/value
TreeChildren m_aChildren; // array of subkeys/values
bool m_bKey; // key or value?
wxRegKey *m_pKey; // only may be !NULL if m_bKey == true
long m_lDummy; // dummy subkey (to make expansion possible)
// ctor
TreeNode() { m_lDummy = 0; }
// trivial accessors
long Id() const { return m_id; }
bool IsRoot() const { return m_pParent == NULL; }
bool IsKey() const { return m_bKey; }
TreeNode *Parent() const { return m_pParent; }
// notifications
bool OnExpand();
void OnCollapse();
// operations
void Refresh() { OnCollapse(); OnExpand(); }
void AddDummy();
void DestroyChildren();
const char *FullName() const;
// get the associated key: make sure the pointer is !NULL
wxRegKey& Key() { if ( !m_pKey ) OnExpand(); return *m_pKey; }
// dtor deletes all children
~TreeNode();
};
wxMenu *m_pMenuPopup;
TreeNode *m_pRoot;
wxImageList *m_imageList;
TreeNode *GetNode(const wxTreeEvent& event)
{ return (TreeNode *)GetItemData(event.m_item.m_itemId); }
public:
// create a new node and insert it to the tree
TreeNode *InsertNewTreeNode(TreeNode *pParent,
const wxString& strName,
int idImage = RegImageList::ClosedKey,
const wxString *pstrValue = NULL);
// add standard registry keys
void AddStdKeys();
};
// ----------------------------------------------------------------------------
// the main window of our application
// ----------------------------------------------------------------------------
class RegFrame : public wxFrame
{
public:
// ctor & dtor
RegFrame(wxFrame *parent, char *title, int x, int y, int w, int h);
virtual ~RegFrame(void);
// callbacks
void OnQuit (wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnTest (wxCommandEvent& event);
void OnExpand (wxCommandEvent& event);
void OnCollapse(wxCommandEvent& event);
void OnToggle (wxCommandEvent& event);
void OnDelete (wxCommandEvent& event);
void OnNewKey (wxCommandEvent& event);
void OnNewText (wxCommandEvent& event);
void OnNewBinary(wxCommandEvent& event);
bool OnClose () { return TRUE; }
DECLARE_EVENT_TABLE();
private:
RegTreeCtrl *m_treeCtrl;
};
// ----------------------------------------------------------------------------
// various ids
// ----------------------------------------------------------------------------
enum
{
Menu_Quit = 100,
Menu_About,
Menu_Test,
Menu_Expand,
Menu_Collapse,
Menu_Toggle,
Menu_New,
Menu_NewKey,
Menu_NewText,
Menu_NewBinary,
Menu_Delete,
Ctrl_RegTree = 200,
};
// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(RegFrame, wxFrame)
EVT_MENU(Menu_Test, RegFrame::OnTest)
EVT_MENU(Menu_About, RegFrame::OnAbout)
EVT_MENU(Menu_Quit, RegFrame::OnQuit)
EVT_MENU(Menu_Expand, RegFrame::OnExpand)
EVT_MENU(Menu_Collapse, RegFrame::OnCollapse)
EVT_MENU(Menu_Toggle, RegFrame::OnToggle)
EVT_MENU(Menu_Delete, RegFrame::OnDelete)
EVT_MENU(Menu_NewKey, RegFrame::OnNewKey)
EVT_MENU(Menu_NewText, RegFrame::OnNewText)
EVT_MENU(Menu_NewBinary,RegFrame::OnNewBinary)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(RegTreeCtrl, wxTreeCtrl)
EVT_TREE_DELETE_ITEM (Ctrl_RegTree, RegTreeCtrl::OnDeleteItem)
EVT_TREE_ITEM_EXPANDING(Ctrl_RegTree, RegTreeCtrl::OnItemExpanding)
EVT_TREE_SEL_CHANGED (Ctrl_RegTree, RegTreeCtrl::OnSelChanged)
EVT_CHAR (RegTreeCtrl::OnChar)
EVT_RIGHT_DOWN(RegTreeCtrl::OnRightClick)
END_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// global functions
// ----------------------------------------------------------------------------
// create the "registry operations" menu
wxMenu *CreateRegistryMenu()
{
wxMenu *pMenuNew = new wxMenu;
pMenuNew->Append(Menu_NewKey, "&Key", "Create a new key");
pMenuNew->AppendSeparator();
pMenuNew->Append(Menu_NewText, "&Text value", "Create a new text value");
pMenuNew->Append(Menu_NewBinary, "&Binary value", "Create a new binary value");
wxMenu *pMenuReg = new wxMenu;
pMenuReg->Append(Menu_New, "&New", pMenuNew);
pMenuReg->Append(Menu_Delete, "&Delete...", "Delete selected key/value");
pMenuReg->AppendSeparator();
pMenuReg->Append(Menu_Expand, "&Expand", "Expand current key");
pMenuReg->Append(Menu_Collapse, "&Collapse", "Collapse current key");
pMenuReg->Append(Menu_Toggle, "&Toggle", "Toggle current key");
return pMenuReg;
}
// ----------------------------------------------------------------------------
// application class
// ----------------------------------------------------------------------------
IMPLEMENT_APP(RegApp)
// `Main program' equivalent, creating windows and returning main app frame
bool RegApp::OnInit()
{
// create the main frame window and show it
RegFrame *frame = new RegFrame(NULL, "wxRegKey Test", 50, 50, 600, 350);
frame->Show(true);
SetTopWindow(frame);
return true;
}
// ----------------------------------------------------------------------------
// RegFrame
// ----------------------------------------------------------------------------
RegFrame::RegFrame(wxFrame *parent, char *title, int x, int y, int w, int h)
: wxFrame(parent, -1, title, wxPoint(x, y), wxSize(w, h))
{
// this reduces flicker effects
SetBackgroundColour(wxColour(255, 255, 255));
// set the icon
// ------------
SetIcon(wxIcon("app_icon"));
// create menu
// -----------
wxMenu *pMenuFile = new wxMenu;
pMenuFile->Append(Menu_Test, "Te&st", "Test key creation");
pMenuFile->AppendSeparator();
pMenuFile->Append(Menu_About, "&About...", "Show an extraordinarly beautiful dialog");
pMenuFile->AppendSeparator();
pMenuFile->Append(Menu_Quit, "E&xit", "Quit this program");
wxMenuBar *pMenu = new wxMenuBar;
pMenu->Append(pMenuFile, "&File");
pMenu->Append(CreateRegistryMenu(), "&Registry");
SetMenuBar(pMenu);
// create child controls
// ---------------------
m_treeCtrl = new RegTreeCtrl(this, Ctrl_RegTree);
// create the status line
// ----------------------
int aWidths[2];
aWidths[0] = 200;
aWidths[1] = -1;
CreateStatusBar(2);
SetStatusWidths(2, aWidths);
}
RegFrame::~RegFrame(void)
{
}
void RegFrame::OnQuit(wxCommandEvent& event)
{
Close(TRUE);
}
void RegFrame::OnAbout(wxCommandEvent& event)
{
wxMessageDialog dialog(this, "wxRegistry sample\n(c) 1998 Vadim Zeitlin",
"About wxRegistry", wxOK);
dialog.ShowModal();
}
void RegFrame::OnTest(wxCommandEvent& event)
{
m_treeCtrl->OnMenuTest();
}
void RegFrame::OnExpand(wxCommandEvent& event)
{
m_treeCtrl->ExpandItem(m_treeCtrl->GetSelection(), wxTREE_EXPAND_EXPAND);
}
void RegFrame::OnCollapse(wxCommandEvent& event)
{
m_treeCtrl->ExpandItem(m_treeCtrl->GetSelection(), wxTREE_EXPAND_COLLAPSE);
}
void RegFrame::OnToggle(wxCommandEvent& event)
{
m_treeCtrl->ExpandItem(m_treeCtrl->GetSelection(), wxTREE_EXPAND_TOGGLE);
}
void RegFrame::OnDelete(wxCommandEvent& event)
{
m_treeCtrl->DeleteSelected();
}
void RegFrame::OnNewKey(wxCommandEvent& event)
{
if ( m_treeCtrl->IsKeySelected() ) {
m_treeCtrl->CreateNewKey(
wxGetTextFromUser("Enter the name of the new key"));
}
}
void RegFrame::OnNewText(wxCommandEvent& event)
{
if ( m_treeCtrl->IsKeySelected() ) {
m_treeCtrl->CreateNewTextValue(
wxGetTextFromUser("Enter the name for the new text value"));
}
}
void RegFrame::OnNewBinary(wxCommandEvent& event)
{
if ( m_treeCtrl->IsKeySelected() ) {
m_treeCtrl->CreateNewBinaryValue(
wxGetTextFromUser("Enter the name for the new binary value"));
}
}
// ----------------------------------------------------------------------------
// RegImageList
// ----------------------------------------------------------------------------
RegImageList::RegImageList() : wxImageList(16, 16, TRUE)
{
// should be in sync with enum RegImageList::RegIcon
static const char *aszIcons[] = { "key1","key2","key3","value1","value2" };
wxString str = "icon_";
for ( uint n = 0; n < WXSIZEOF(aszIcons); n++ ) {
Add(wxIcon(str + aszIcons[n], wxBITMAP_TYPE_ICO_RESOURCE));
}
}
// ----------------------------------------------------------------------------
// RegTreeCtrl
// ----------------------------------------------------------------------------
// create a new tree item and insert it into the tree
RegTreeCtrl::TreeNode *RegTreeCtrl::InsertNewTreeNode(TreeNode *pParent,
const wxString& strName,
int idImage,
const wxString *pstrValue)
{
// create new item & insert it
TreeNode *pNewNode = new TreeNode;
pNewNode->m_pTree = this;
pNewNode->m_pParent = pParent;
pNewNode->m_strName = strName;
pNewNode->m_bKey = pstrValue == NULL;
pNewNode->m_pKey = NULL;
pNewNode->m_id = InsertItem(pParent ? pParent->m_id : 0,
pNewNode->IsKey() ? strName : *pstrValue,
idImage);
wxASSERT_MSG( pNewNode->m_id, "can't create tree control item!");
// save the pointer in the item
if ( !SetItemData(pNewNode->m_id, (long)pNewNode) ) {
wxFAIL_MSG("can't store item's data in tree control!");
}
// add it to the list of parent's children
if ( pParent != NULL ) {
pParent->m_aChildren.Add(pNewNode);
}
// force the [+] button (@@@ not very elegant...)
if ( pNewNode->IsKey() )
pNewNode->AddDummy();
return pNewNode;
}
RegTreeCtrl::RegTreeCtrl(wxWindow *parent, wxWindowID id)
: wxTreeCtrl(parent, id, wxDefaultPosition, wxDefaultSize,
wxTR_HAS_BUTTONS | wxSUNKEN_BORDER)
{
// create the image list
// ---------------------
m_imageList = new RegImageList;
SetImageList(m_imageList, wxIMAGE_LIST_NORMAL);
// create root keys
// ----------------
m_pRoot = InsertNewTreeNode(NULL, "Registry Root", RegImageList::Root);
// create popup menu
// -----------------
m_pMenuPopup = CreateRegistryMenu();
}
RegTreeCtrl::~RegTreeCtrl()
{
delete m_pMenuPopup;
delete m_pRoot;
delete m_imageList;
}
void RegTreeCtrl::AddStdKeys()
{
for ( uint ui = 0; ui < wxRegKey::nStdKeys; ui++ ) {
InsertNewTreeNode(m_pRoot, wxRegKey::GetStdKeyName(ui));
}
}
// ----------------------------------------------------------------------------
// notifications
// ----------------------------------------------------------------------------
void RegTreeCtrl::OnRightClick(wxMouseEvent& event)
{
int iFlags;
long lId = HitTest(wxPoint(event.GetX(), event.GetY()), iFlags);
if ( iFlags & wxTREE_HITTEST_ONITEMLABEL ) {
// popup menu only if an item was clicked
wxASSERT( lId != 0 );
SelectItem(lId);
PopupMenu(m_pMenuPopup, event.GetX(), event.GetY());
}
}
void RegTreeCtrl::OnDeleteItem(wxTreeEvent& event)
{
}
// test the key creation functions
void RegTreeCtrl::OnMenuTest()
{
long lId = GetSelection();
TreeNode *pNode = (TreeNode *)GetItemData(lId);
wxCHECK_RET( pNode != NULL, "tree item without data?" );
if ( pNode->IsRoot() ) {
wxLogError("Can't create a subkey under the root key.");
return;
}
if ( !pNode->IsKey() ) {
wxLogError("Can't create a subkey under a value!");
return;
}
wxRegKey key1(pNode->Key(), "key1");
if ( key1.Create() ) {
wxRegKey key2a(key1, "key2a"), key2b(key1, "key2b");
if ( key2a.Create() && key2b.Create() ) {
// put some values under the newly created keys
key1.SetValue("first_term", "10");
key1.SetValue("second_term", "7");
key2a = "this is the unnamed value";
key2b.SetValue("sum", 17);
// refresh tree
pNode->Refresh();
wxLogStatus("Test keys successfully added.");
return;
}
}
wxLogError("Creation of test keys failed.");
}
void RegTreeCtrl::OnChar(wxKeyEvent& event)
{
if ( event.KeyCode() == WXK_DELETE )
DeleteSelected();
else
wxTreeCtrl::OnChar(event);
}
void RegTreeCtrl::OnSelChanged(wxTreeEvent& event)
{
wxFrame *pFrame = (wxFrame *)(wxWindow::GetParent());
pFrame->SetStatusText(GetNode(event)->FullName(), 1);
}
void RegTreeCtrl::OnItemExpanding(wxTreeEvent& event)
{
TreeNode *pNode = GetNode(event);
bool bExpanding = event.m_code == wxTREE_EXPAND_EXPAND;
// expansion might take some time
wxSetCursor(*wxHOURGLASS_CURSOR);
wxLogStatus("Working...");
wxYield(); // to give the status line a chance to refresh itself
if ( pNode->IsKey() ) {
if ( bExpanding ) {
// expanding: add subkeys/values
if ( !pNode->OnExpand() )
return;
}
else {
// collapsing: clean up
pNode->OnCollapse();
}
// change icon for non root key
if ( !pNode->IsRoot() ) {
int idIcon = bExpanding ? RegImageList::OpenedKey
: RegImageList::ClosedKey;
SetItemImage(pNode->Id(), idIcon, idIcon);
}
}
wxLogStatus("Ok");
wxSetCursor(*wxSTANDARD_CURSOR);
}
// ----------------------------------------------------------------------------
// TreeNode implementation
// ----------------------------------------------------------------------------
bool RegTreeCtrl::TreeNode::OnExpand()
{
// remove dummy item
if ( m_lDummy != 0 ) {
m_pTree->DeleteItem(m_lDummy);
m_lDummy = 0;
}
else {
// we've been already expanded
return TRUE;
}
if ( IsRoot() ) {
// we're the root key
m_pTree->AddStdKeys();
return true;
}
if ( Parent()->IsRoot() ) {
// we're a standard key
m_pKey = new wxRegKey(m_strName);
}
else {
// we're a normal key
m_pKey = new wxRegKey(*(Parent()->m_pKey), m_strName);
}
if ( !m_pKey->Open() ) {
wxLogError("The key '%s' can't be opened.", FullName());
return false;
}
// enumeration variables
long l;
wxString str;
bool bCont;
// enumerate all subkeys
bCont = m_pKey->GetFirstKey(str, l);
while ( bCont ) {
m_pTree->InsertNewTreeNode(this, str, RegImageList::ClosedKey);
bCont = m_pKey->GetNextKey(str, l);
}
// enumerate all values
bCont = m_pKey->GetFirstValue(str, l);
while ( bCont ) {
wxString strItem;
if (str.IsEmpty())
strItem = "<default>";
else
strItem = str;
strItem += " = ";
// determine the appropriate icon
RegImageList::Icon icon;
switch ( m_pKey->GetValueType(str) ) {
case wxRegKey::Type_String:
case wxRegKey::Type_Expand_String:
case wxRegKey::Type_Multi_String:
{
wxString strValue;
icon = RegImageList::TextValue;
m_pKey->QueryValue(str, strValue);
strItem += strValue;
}
break;
case wxRegKey::Type_None:
// @@ handle the error...
icon = RegImageList::BinaryValue;
break;
case wxRegKey::Type_Dword:
{
char szBuf[128];
long l;
m_pKey->QueryValue(str, &l);
sprintf(szBuf, "%lx", l);
strItem += szBuf;
}
// fall through
default:
icon = RegImageList::BinaryValue;
}
m_pTree->InsertNewTreeNode(this, str, icon, &strItem);
bCont = m_pKey->GetNextValue(str, l);
}
return true;
}
void RegTreeCtrl::TreeNode::OnCollapse()
{
bool bHasChildren = !m_aChildren.IsEmpty();
DestroyChildren();
if ( bHasChildren )
AddDummy();
else
m_lDummy = 0;
delete m_pKey;
m_pKey = NULL;
}
void RegTreeCtrl::TreeNode::AddDummy()
{
// insert dummy item forcing appearance of [+] button
m_lDummy = m_pTree->InsertItem(Id(), "");
}
void RegTreeCtrl::TreeNode::DestroyChildren()
{
// destroy all children
uint nCount = m_aChildren.Count();
for ( uint n = 0; n < nCount; n++ ) {
long lId = m_aChildren[n]->Id();
delete m_aChildren[n];
m_pTree->DeleteItem(lId);
}
m_aChildren.Empty();
}
RegTreeCtrl::TreeNode::~TreeNode()
{
DestroyChildren();
delete m_pKey;
}
const char *RegTreeCtrl::TreeNode::FullName() const
{
static wxString s_strName;
if ( IsRoot() ) {
return "Registry Root";
}
else {
// our own registry key might not (yet) exist or we might be a value,
// so just use the parent's and concatenate
s_strName = Parent()->FullName();
s_strName << '\\' << m_strName;
return s_strName;
}
}
// ----------------------------------------------------------------------------
// operations on RegTreeCtrl
// ----------------------------------------------------------------------------
void RegTreeCtrl::DeleteSelected()
{
long lCurrent = GetSelection(),
lParent = GetParent(lCurrent);
if ( lParent == 0 ) {
wxLogError("Can't delete root key.");
return;
}
TreeNode *pCurrent = (TreeNode *)GetItemData(lCurrent),
*pParent = (TreeNode *)GetItemData(lParent);
wxCHECK_RET( pCurrent && pParent, "either node or parent without data?" );
if ( pParent->IsRoot() ) {
wxLogError("Can't delete standard key.");
return;
}
if ( pCurrent->IsKey() ) {
if ( wxMessageBox("Do you really want to delete this key?",
"Confirmation",
wxICON_QUESTION | wxYES_NO | wxCANCEL, this) != wxYES ) {
return;
}
// must close key before deleting it
pCurrent->OnCollapse();
if ( pParent->Key().DeleteKey(pCurrent->m_strName) )
pParent->Refresh();
}
else {
if ( wxMessageBox("Do you really want to delete this value?",
"Confirmation",
wxICON_QUESTION | wxYES_NO | wxCANCEL, this) != wxYES ) {
return;
}
if ( pParent->Key().DeleteValue(pCurrent->m_strName) )
pParent->Refresh();
}
}
void RegTreeCtrl::CreateNewKey(const wxString& strName)
{
long lCurrent = GetSelection();
TreeNode *pCurrent = (TreeNode *)GetItemData(lCurrent);
wxCHECK_RET( pCurrent != NULL, "node without data?" );
wxASSERT( pCurrent->IsKey() ); // check must have been done before
if ( pCurrent->IsRoot() ) {
wxLogError("Can't create a new key under the root key.");
return;
}
wxRegKey key(pCurrent->Key(), strName);
if ( key.Create() )
pCurrent->Refresh();
}
void RegTreeCtrl::CreateNewTextValue(const wxString& strName)
{
long lCurrent = GetSelection();
TreeNode *pCurrent = (TreeNode *)GetItemData(lCurrent);
wxCHECK_RET( pCurrent != NULL, "node without data?" );
wxASSERT( pCurrent->IsKey() ); // check must have been done before
if ( pCurrent->IsRoot() ) {
wxLogError("Can't create a new value under the root key.");
return;
}
if ( pCurrent->Key().SetValue(strName, "") )
pCurrent->Refresh();
}
void RegTreeCtrl::CreateNewBinaryValue(const wxString& strName)
{
long lCurrent = GetSelection();
TreeNode *pCurrent = (TreeNode *)GetItemData(lCurrent);
wxCHECK_RET( pCurrent != NULL, "node without data?" );
wxASSERT( pCurrent->IsKey() ); // check must have been done before
if ( pCurrent->IsRoot() ) {
wxLogError("Can't create a new value under the root key.");
return;
}
if ( pCurrent->Key().SetValue(strName, 0) )
pCurrent->Refresh();
}
bool RegTreeCtrl::IsKeySelected() const
{
long lCurrent = GetSelection();
TreeNode *pCurrent = (TreeNode *)GetItemData(lCurrent);
wxCHECK( pCurrent != NULL, false );
return pCurrent->IsKey();
}
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