wxFileSelector should have file name only, not path, passed to 3rd arg

[wxWidgets.git] / samples / db / dbtest.h

diff --git a/samples/db/dbtest.h b/samples/db/dbtest.h
index 2a18570f9bbe220dbe58ba40003395a2f24fefbe..87911415e9ea9e51f374ff13900ebd27ef8d0520 100644 (file)
--- a/samples/db/dbtest.h
+++ b/samples/db/dbtest.h
@@ -14,25 +14,36 @@
 #endif
 
 #include <wx/string.h>
 #endif
 
 #include <wx/string.h>

+#include <wx/db.h>

 #include <wx/dbtable.h>
 
 #include <wx/dbtable.h>
 

-enum           DialogModes {mView,mCreate,mEdit,mSearch};
+enum    DialogModes {mView,mCreate,mEdit,mSearch};

 
 // ID for the menu quit command
 
 // ID for the menu quit command

-#define FILE_CREATE                    100
-#define FILE_EXIT                              199
-#define EDIT_PARAMETERS                200
-#define ABOUT_DEMO                     300
-
+#define FILE_CREATE           100
+#define FILE_RECREATE_TABLE   110
+#define FILE_RECREATE_INDEXES 120
+#define FILE_EXIT             199
+#define EDIT_PARAMETERS       200
+#define ABOUT_DEMO            300
+
+// this seems to be missing, Robert Roebling (?)
+#ifndef MAX_PATH
+    #if defined(__WXMAC__)
+        #define MAX_PATH   260 /* max. length of full pathname */
+    #else  /* _MAC */
+        #define MAX_PATH   256 /* max. length of full pathname */
+    #endif
+#endif

 
 // Name of the table to be created/opened
 
 // Name of the table to be created/opened

-const char     CONTACT_TABLE_NAME[]            =       "contacts";
+const wxChar     CONTACT_TABLE_NAME[]       = "contacts";
+
+// Number of columns in the CONTACT table
+const int        CONTACT_NO_COLS            = 12;        // 0-11

 
 

-// Nuber of columns in the above table
-const int      CONTACT_NO_COLS                 = 12;           // 0-11
+const wxChar     PARAM_FILENAME[]            = "dbtest.cfg";

 
 

-// Global structure for holding ODBC connection information
-struct DbStuff DbConnectInf;

 
 enum Language {langENGLISH, langFRENCH, langGERMAN, langSPANISH, langOTHER};
 
 
 enum Language {langENGLISH, langFRENCH, langGERMAN, langSPANISH, langOTHER};
 


@@ -40,146 +51,241 @@ enum Language {langENGLISH, langFRENCH, langGERMAN, langSPANISH, langOTHER};
 class CeditorDlg;
 class CparameterDlg;
 
 class CeditorDlg;
 class CparameterDlg;
 

-#ifdef __UNIX__
-const char paramFilename[] = "../dbtest.cfg";
-#else
-const char paramFilename[] = "dbtest.cfg";
-#endif
-
-
-/*
- * This class contains the actual data members that are used for transferring
- * data back and forth from the database to the program.  
- *
- * NOTE: The object described in this class is just for example purposes, and has no
- * real meaning other than to show each type of field being used by the database
- */
+//
+// This class contains the actual data members that are used for transferring
+// data back and forth from the database to the program.  
+//
+// NOTE: The object described in this class is just for example purposes, and has no
+// real meaning other than to show each type of field being used by the database
+//

 class CstructContact : public wxObject
 {
 class CstructContact : public wxObject
 {

-       public:
-               char                                    Name[ 50+1 ];           //      Contact's name
-               char                                    Addr1[ 50+1 ];
-               char                                    Addr2[ 50+1 ];
-               char                                    City[ 25+1 ];
-               char                                    State[ 25+1 ];
-               char                                    PostalCode[ 15+1 ];
-               char                                    Country[ 20+1 ];
-               TIMESTAMP_STRUCT        JoinDate;                       // Date on which this person joined the wxWindows project
-               Language                                NativeLanguage; // Enumerated type indicating person's native language
-               bool                                    IsDeveloper;            // Is this person a developer for wxWindows, or just a subscriber
-               int                                     Contributions;          // Something to show off an integer field
-               ULONG                                   LinesOfCode;            // Something to show off a 'long' field
+    public:
+        wxChar             Name[50+1];          //    Contact's name
+        wxChar             Addr1[50+1];
+        wxChar             Addr2[50+1];
+        wxChar             City[25+1];
+        wxChar             State[25+1];
+        wxChar             PostalCode[15+1];
+        wxChar             Country[20+1];
+        TIMESTAMP_STRUCT   JoinDate;            // Date on which this person joined the wxWindows project
+        Language           NativeLanguage;      // Enumerated type indicating person's native language
+        bool               IsDeveloper;         // Is this person a developer for wxWindows, or just a subscriber
+        UCHAR              Contributions;       // Something to show off an integer field
+        ULONG              LinesOfCode;         // Something to show off a 'long' field

 };  // CstructContact
 
 
 //
 };  // CstructContact
 
 
 //

-// NOTE: Ccontact inherits wxTable, which gives access to all the database functionality
+// The Ccontact class derives from wxDbTable, so we have access to all
+// of the database table functions and the local memory variables that
+// the database classes will store the data into (and read the data from)
+// all combined in this one class.

 //
 //

-class Ccontact : public wxTable, public CstructContact
+class Ccontact : public wxDbTable, public CstructContact

 { 
 { 

-       private:
-               bool                             freeDbConn;
-               void                             SetupColumns();
-
-       public:
-               wxString                         whereStr;
-               wxString                         qryWhereStr;   // Where string returned from the query dialog
-
-               Ccontact(wxDB *pwxDB=NULL);
-               ~Ccontact();
-
-               void                             Initialize();
-               bool                             CreateIndexes(void);
-               bool                             FetchByName(char *name);
+    private:
+        // Used to keep track of whether this class had a wxDb instance
+        // passed in to it or not.  If an existing wxDb instance was not 
+        // passed in at Ccontact creation time, then when the Ccontact
+        // instance is deleted, the connection will be freed as Ccontact
+        // created its own connection when it was created.
+        bool                 freeDbConn;
+
+        // Calls wxDbTable::SetColDefs() once for each column that is
+        // to be associated with some member variable for use with
+        // this database object.
+        void                 SetupColumns();
+
+    public:
+        // Used in places where we need to construct a WHERE clause to 
+        // be passed to the SetWhereClause() function.  From example,
+        // where building the WHERE clause requires using ::Printf()
+        // to build the string.
+        wxString             whereStr;
+
+        // WHERE string returned from the query dialog
+        wxString             qryWhereStr;
+
+        Ccontact(wxDb *pwxDb=NULL);
+        ~Ccontact();
+
+        void                 Initialize();
+
+        // Contains all the index definitions and calls to wxDbTable::CreateIndex()
+        // required to create all the indexes we wish to define for this table.
+        bool                 CreateIndexes(void);
+
+        // Since we do not wish to have duplicate code blocks all over our program
+        // for a common query/fetch that we will need to do in many places, we
+        // include this member function that does it all for us in one place.
+        bool                 FetchByName(const wxString &name);

 
 };  // Ccontact class definition
 
 
 typedef struct Cparameters
 {
 
 };  // Ccontact class definition
 
 
 typedef struct Cparameters
 {

-       // The length of these strings were arbitrarily picked, and are
-       // dependent on the OS and database engine you will be using.
-       char    ODBCSource[100+1];
-       char    UserName[25+1];
-       char    Password[25+1];
-       char    DirPath[MAX_PATH+1];
+    wxChar    ODBCSource[SQL_MAX_DSN_LENGTH+1];
+    wxChar    UserName[SQL_MAX_USER_NAME_LEN+1];
+    wxChar    Password[SQL_MAX_AUTHSTR_LEN+1];
+    wxChar    DirPath[MAX_PATH+1];

 } Cparameters;
 
 
 } Cparameters;
 
 

-// Define a new application type
-class DatabaseDemoApp: public wxApp
-{
-       public:
-               Cparameters  params;
-               bool         OnInit();
-};  // DatabaseDemoApp
-
-DECLARE_APP(DatabaseDemoApp)
-

 // Define a new frame type
 class DatabaseDemoFrame: public wxFrame
 { 
 // Define a new frame type
 class DatabaseDemoFrame: public wxFrame
 { 

-       private:
-               CeditorDlg              *pEditorDlg;
-               CparameterDlg   *pParamDlg;
+    private:
+        CeditorDlg      *pEditorDlg;
+        CparameterDlg   *pParamDlg;

 
 

-       public:
-               DatabaseDemoFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& sz);
+    public:
+        DatabaseDemoFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& sz);

 
 

-               void    OnCloseWindow(wxCloseEvent& event);
+        void    OnCloseWindow(wxCloseEvent& event);

         void    OnCreate(wxCommandEvent& event);
         void    OnCreate(wxCommandEvent& event);

+        void    OnRecreateTable(wxCommandEvent& event);
+        void    OnRecreateIndexes(wxCommandEvent& event);

         void    OnExit(wxCommandEvent& event);
         void    OnEditParameters(wxCommandEvent& event);
         void    OnAbout(wxCommandEvent& event);
 
         void    OnExit(wxCommandEvent& event);
         void    OnEditParameters(wxCommandEvent& event);
         void    OnAbout(wxCommandEvent& event);
 

-               void    CreateDataTable();
-               void    BuildEditorDialog();
-               void    BuildParameterDialog(wxWindow *parent);
+        void    BuildEditorDialog();
+        void    BuildParameterDialog(wxWindow *parent);

 
 DECLARE_EVENT_TABLE()
 };  // DatabaseDemoFrame
 
 
 
 DECLARE_EVENT_TABLE()
 };  // DatabaseDemoFrame
 
 

+// Define a new application type
+class DatabaseDemoApp: public wxApp
+{
+    public:
+        // These are the parameters that are stored in the "PARAM_FILENAME" file
+        // that are read in at startup of the program that indicate the connection
+        // parameters to be used for connecting to the ODBC data source.
+        Cparameters      params;
+
+        // Pointer to the main frame used by the App
+        DatabaseDemoFrame *DemoFrame;
+
+        // Pointer to the main database connection used in the program.  This
+        // pointer would normally be used for doing things as database lookups
+        // for user login names and passwords, getting workstation settings, etc.
+        //         
+        // ---> IMPORTANT <---
+        // 
+        // For each database object created which uses this wxDb pointer
+        // connection to the database, when a CommitTrans() or RollBackTrans()
+        // will commit or rollback EVERY object which uses this wxDb pointer.
+        // 
+        // To allow each table object (those derived from wxDbTable) to be 
+        // individually committed or rolled back, you MUST use a different
+        // instance of wxDb in the constructor of the table.  Doing so creates 
+        // more overhead, and will use more database connections (some DBs have
+        // connection limits...), so use connections sparringly.
+        // 
+        // It is recommended that one "main" database connection be created for
+        // the entire program to use for READ-ONLY database accesses, but for each
+        // table object which will do a CommitTrans() or RollbackTrans() that a
+        // new wxDb object be created and used for it.
+        wxDb            *READONLY_DB;
+
+        // Contains the ODBC connection information used by 
+        // all database connections
+        wxDbConnectInf  *DbConnectInf;
+
+        bool             OnInit();
+
+        // Read/Write ODBC connection parameters to the "PARAM_FILENAME" file
+        bool             ReadParamFile(Cparameters &params);
+        bool             WriteParamFile(Cparameters &params);
+
+        void             CreateDataTable(bool recreate);
+};  // DatabaseDemoApp
+
+
+DECLARE_APP(DatabaseDemoApp)
+

 
 // *************************** CeditorDlg ***************************
 
 class CeditorDlg : public wxPanel
 {
 
 // *************************** CeditorDlg ***************************
 
 class CeditorDlg : public wxPanel
 {

-       private:
-               bool                                             widgetPtrsSet;
-               wxString                                         saveName;
-
-               // Pointers to all widgets on the dialog
-               wxButton                *pCreateBtn,  *pEditBtn,      *pDeleteBtn,  *pCopyBtn,  *pSaveBtn,  *pCancelBtn;
-               wxButton                *pPrevBtn,    *pNextBtn,      *pQueryBtn,   *pResetBtn, *pDoneBtn,  *pHelpBtn;
-               wxButton                *pNameListBtn;
-               wxTextCtrl              *pNameTxt,    *pAddress1Txt,  *pAddress2Txt,*pCityTxt,  *pStateTxt, *pCountryTxt,*pPostalCodeTxt;
-               wxStaticText    *pNameMsg,    *pAddress1Msg,  *pAddress2Msg,*pCityMsg,  *pStateMsg, *pCountryMsg,*pPostalCodeMsg;
-               wxTextCtrl              *pJoinDateTxt,*pContribTxt,   *pLinesTxt;
-               wxStaticText   *pJoinDateMsg,*pContribMsg,   *pLinesMsg;
-               wxRadioBox      *pDeveloperRadio;
-               wxChoice    *pNativeLangChoice;
-               wxStaticText    *pNativeLangMsg;
-
-       public:
-               enum    DialogModes              mode;
-               Ccontact                                        *Contact;       // this is the table object that will be being manipulated
-
-               CeditorDlg(wxWindow *parent);
-               void    OnCloseWindow(wxCloseEvent& event);
-               void    OnButton( wxCommandEvent &event );
-               void    OnCommand(wxWindow& win, wxCommandEvent& event);
-               void    OnActivate(bool) {};  // necessary for hot keys
-
-               void    FieldsEditable();
-               void    SetMode(enum DialogModes m);
-               bool    PutData();
-               bool    GetData();
-               bool    Save();
-               bool    GetNextRec();
-               bool    GetPrevRec();
-               bool    GetRec(char *whereStr);
-               
+    private:
+        // Used to indicate whether all of the widget pointers (defined
+        // below) have been initialized to point to the memory for 
+        // the named widget.  Used as a safeguard from using the widget
+        // before it has been initialized.
+        bool             widgetPtrsSet;
+
+        // Used when the EDIT button has been pressed to maintain the 
+        // original name that was displayed in the editor before the 
+        // EDIT button was pressed, so that if CANCEL is pressed, a
+        // FetchByName() can be done to retrieve the original data
+        // to repopulate the dialog.
+        wxString         saveName;
+
+        // Pointers to all widgets on the dialog
+        wxButton        *pCreateBtn,  *pEditBtn,      *pDeleteBtn,  *pCopyBtn,  *pSaveBtn,  *pCancelBtn;
+        wxButton        *pPrevBtn,    *pNextBtn,      *pQueryBtn,   *pResetBtn, *pDoneBtn,  *pHelpBtn;
+        wxButton        *pNameListBtn;
+        wxTextCtrl      *pNameTxt,    *pAddress1Txt,  *pAddress2Txt,*pCityTxt,  *pStateTxt, *pCountryTxt,*pPostalCodeTxt;
+        wxStaticText    *pNameMsg,    *pAddress1Msg,  *pAddress2Msg,*pCityMsg,  *pStateMsg, *pCountryMsg,*pPostalCodeMsg;
+        wxTextCtrl      *pJoinDateTxt,*pContribTxt,   *pLinesTxt;
+        wxStaticText    *pJoinDateMsg,*pContribMsg,   *pLinesMsg;
+        wxRadioBox      *pDeveloperRadio;
+        wxChoice        *pNativeLangChoice;
+        wxStaticText    *pNativeLangMsg;
+
+    public:
+        // Indicates if the editor dialog has been initialized yet (used to
+        // help trap if the Initialize() function failed to load all required
+        // resources or not.
+        bool             initialized;
+
+        enum DialogModes mode;
+
+        // Pointer to the wxDbTable instance that is used to manipulate
+        // the data in memory and in the database
+        Ccontact        *Contact;
+
+        CeditorDlg(wxWindow *parent);
+
+        void    OnCloseWindow(wxCloseEvent& event);
+        void    OnButton( wxCommandEvent &event );
+        void    OnCommand(wxWindow& win, wxCommandEvent& event);
+        void    OnActivate(bool) {};  // necessary for hot keys
+
+        bool    Initialize();
+
+        // Sets wxStaticText fields to be editable or not depending
+        // on the current value of 'mode'
+        void    FieldsEditable();
+
+        // Sets the editor mode, determining what state widgets
+        // on the dialog are to be in based on the operation
+        // being performed.
+        void    SetMode(enum DialogModes m);
+
+        // Update/Retrieve data from the widgets on the dialog
+        bool    PutData();
+        bool    GetData();
+
+        // Inserts/updates the database with the current data
+        // retrieved from the editor dialog
+        bool    Save();
+
+        // Database functions for changing the data that is to 
+        // be displayed on the dialog.  GetNextRec()/GetPrevRec()
+        // provide database independent methods that do not require
+        // backward scrolling cursors to obtain the record that
+        // is prior to the current record in the search sequence.
+        bool    GetNextRec();
+        bool    GetPrevRec();
+        bool    GetRec(const wxString &whereStr);
+        

 DECLARE_EVENT_TABLE()
 };  // CeditorDlg
 
 DECLARE_EVENT_TABLE()
 };  // CeditorDlg
 


@@ -229,30 +335,48 @@ DECLARE_EVENT_TABLE()
 
 class CparameterDlg : public wxDialog
 {
 
 class CparameterDlg : public wxDialog
 {

-       private:
-               bool                                             widgetPtrsSet;
-               enum    DialogModes              mode;
-               bool                                             saved;
-               Cparameters                              savedParamSettings;
-
-               // Pointers to all widgets on the dialog
-               wxStaticText    *pParamODBCSourceMsg;
-               wxListBox               *pParamODBCSourceList;
-               wxStaticText    *pParamUserNameMsg,             *pParamPasswordMsg,     *pParamDirPathMsg;
-               wxTextCtrl              *pParamUserNameTxt,             *pParamPasswordTxt,     *pParamDirPathTxt;
-               wxButton                        *pParamSaveBtn,                 *pParamCancelBtn;
-
-       public:
-               CparameterDlg(wxWindow *parent);
-               void    OnCloseWindow(wxCloseEvent& event);
-               void    OnButton( wxCommandEvent &event );
-               void    OnCommand(wxWindow& win, wxCommandEvent& event);
-               void    OnActivate(bool) {};  // necessary for hot keys
-
-               bool    PutData();
-               bool    GetData();
-               bool    Save();
-               void    FillDataSourceList();
+    private:
+        // Used to indicate whether all of the widget pointers (defined
+        // below) have been initialized to point to the memory for 
+        // the named widget.  Used as a safeguard from using the widget
+        // before it has been initialized.
+        bool                 widgetPtrsSet;
+
+        enum DialogModes     mode;
+
+        // Have the parameters been saved yet, or do they 
+        // need to be saved to update the params on disk
+        bool                 saved;
+
+        // Original params
+        Cparameters          savedParamSettings;
+
+        // Pointers to all widgets on the dialog
+        wxStaticText        *pParamODBCSourceMsg;
+        wxListBox           *pParamODBCSourceList;
+        wxStaticText        *pParamUserNameMsg,        *pParamPasswordMsg,    *pParamDirPathMsg;
+        wxTextCtrl          *pParamUserNameTxt,        *pParamPasswordTxt,    *pParamDirPathTxt;
+        wxButton            *pParamSaveBtn,            *pParamCancelBtn;
+
+    public:
+        CparameterDlg(wxWindow *parent);
+
+        void    OnCloseWindow(wxCloseEvent& event);
+        void    OnButton( wxCommandEvent &event );
+        void    OnCommand(wxWindow& win, wxCommandEvent& event);
+        void    OnActivate(bool) {};  // necessary for hot keys
+
+        // Update/Retrieve data from the widgets on the dialog
+        bool    PutData();
+        bool    GetData();
+
+        // Stores the defined parameter for connecting to the selected ODBC
+        // data source to the config file name in "PARAM_FILENAME"
+        bool    Save();
+
+        // Populates the 'pParamODBCSourceList' listbox with the names of all
+        // ODBC datasource defined for use at the current workstation
+        void    FillDataSourceList();

 
 DECLARE_EVENT_TABLE()
 };  // CparameterDlg
 
 DECLARE_EVENT_TABLE()
 };  // CparameterDlg


@@ -266,8 +390,8 @@ DECLARE_EVENT_TABLE()
 #define PARAMETER_DIALOG_NAME_TEXT          404
 #define PARAMETER_DIALOG_PASSWORD_MSG       405
 #define PARAMETER_DIALOG_PASSWORD_TEXT      406
 #define PARAMETER_DIALOG_NAME_TEXT          404
 #define PARAMETER_DIALOG_PASSWORD_MSG       405
 #define PARAMETER_DIALOG_PASSWORD_TEXT      406

-#define PARAMETER_DIALOG_DIRPATH_MSG       407
-#define PARAMETER_DIALOG_DIRPATH_TEXT      408
+#define PARAMETER_DIALOG_DIRPATH_MSG        407
+#define PARAMETER_DIALOG_DIRPATH_TEXT       408

 #define PARAMETER_DIALOG_SAVE               409
 #define PARAMETER_DIALOG_CANCEL             410
 
 #define PARAMETER_DIALOG_SAVE               409
 #define PARAMETER_DIALOG_CANCEL             410
 


@@ -277,83 +401,87 @@ DECLARE_EVENT_TABLE()
 // QUERY DIALOG
 enum qryOp
 {
 // QUERY DIALOG
 enum qryOp
 {

-       qryOpEQ,
-       qryOpLT,
-       qryOpGT,
-       qryOpLE,
-       qryOpGE,
-       qryOpBEGINS,
-       qryOpCONTAINS,
-       qryOpLIKE,
-       qryOpBETWEEN
+    qryOpEQ,
+    qryOpLT,
+    qryOpGT,
+    qryOpLE,
+    qryOpGE,
+    qryOpBEGINS,
+    qryOpCONTAINS,
+    qryOpLIKE,
+    qryOpBETWEEN

 };
 
 
 // Query strings
 };
 
 
 // Query strings

-char * const langQRY_EQ                                                                                = "column = column | value";
-char * const langQRY_LT                                                                                = "column < column | value";
-char * const langQRY_GT                                                                                = "column > column | value";
-char * const langQRY_LE                                                                                = "column <= column | value";
-char * const langQRY_GE                                                                                = "column >= column | value";
-char * const langQRY_BEGINS                                                            = "columns that BEGIN with the string entered";
-char * const langQRY_CONTAINS                                                          = "columns that CONTAIN the string entered";
-char * const langQRY_LIKE                                                                      = "% matches 0 or more of any char; _ matches 1 char";
-char * const langQRY_BETWEEN                                                           = "column BETWEEN value AND value";
+wxChar * const langQRY_EQ           = "column = column | value";
+wxChar * const langQRY_LT           = "column < column | value";
+wxChar * const langQRY_GT           = "column > column | value";
+wxChar * const langQRY_LE           = "column <= column | value";
+wxChar * const langQRY_GE           = "column >= column | value";
+wxChar * const langQRY_BEGINS       = "columns that BEGIN with the string entered";
+wxChar * const langQRY_CONTAINS     = "columns that CONTAIN the string entered";
+wxChar * const langQRY_LIKE         = "% matches 0 or more of any char; _ matches 1 char";
+wxChar * const langQRY_BETWEEN      = "column BETWEEN value AND value";

 
 
 class CqueryDlg : public wxDialog
 {
 
 
 class CqueryDlg : public wxDialog
 {

-       private:
-               CcolInf *colInf;                // Column inf. returned by db->GetColumns()
-               wxTable *dbTable;
-               char            *masterTableName;
-               char            *pWhere;                // A pointer to the storage for the resulting where clause
-               wxDB            *pDB;
-
-       public:
-               bool                                    widgetPtrsSet;
-
-               // Widget pointers
-               wxStaticText                    *pQueryCol1Msg;
-               wxChoice                                *pQueryCol1Choice;
-               wxStaticText                    *pQueryNotMsg;
-               wxCheckBox                      *pQueryNotCheck;
-               wxStaticText                    *pQueryOperatorMsg;
-               wxChoice                                *pQueryOperatorChoice;
-               wxStaticText                    *pQueryCol2Msg;
-               wxChoice                                *pQueryCol2Choice;
-               wxStaticText                    *pQueryValue1Msg;
-               wxTextCtrl                              *pQueryValue1Txt;
-               wxStaticText                    *pQueryValue2Msg;
-               wxTextCtrl                              *pQueryValue2Txt;
-               wxStaticText                    *pQuerySqlWhereMsg;
-               wxTextCtrl                      *pQuerySqlWhereMtxt;
-               wxButton                                *pQueryAddBtn;
-               wxButton                                *pQueryAndBtn;
-               wxButton                                *pQueryOrBtn;
-               wxButton                                *pQueryLParenBtn;
-               wxButton                                *pQueryRParenBtn;
-               wxButton                                *pQueryDoneBtn;
-               wxButton                                *pQueryClearBtn;
-               wxButton                                *pQueryCountBtn;
-               wxButton                                *pQueryHelpBtn;
-               wxStaticBox                     *pQueryHintGrp;
-               wxStaticText                    *pQueryHintMsg;
-
-               wxTextCtrl                              *pFocusTxt;
-
-               CqueryDlg(wxWindow *parent, wxDB *pDb, char *tblName[], char *pWhereArg);
-
-               void    OnButton( wxCommandEvent &event );
-               void            OnCommand(wxWindow& win, wxCommandEvent& event);
-               void        OnCloseWindow(wxCloseEvent& event);
-               void            OnActivate(bool) {};  // necessary for hot keys
-
-//             bool            SetWidgetPtrs();
-               void            AppendToWhere(char *s);
-               void            ProcessAddBtn();
-               void            ProcessCountBtn();
-               bool            ValidateWhereClause();
+    private:
+        wxDbColInf  *colInf;            // Column inf. returned by db->GetColumns()
+        wxDbTable   *dbTable;           // generic wxDbTable object for attaching to the table to query
+        wxChar      *masterTableName;   // Name of the table that 'dbTable' will be associated with
+        wxString     pWhere;            // A pointer to the storage for the resulting where clause
+        wxDb        *pDB;
+
+    public:
+        // Used to indicate whether all of the widget pointers (defined
+        // below) have been initialized to point to the memory for 
+        // the named widget.  Used as a safeguard from using the widget
+        // before it has been initialized.
+        bool                     widgetPtrsSet;
+
+        // Widget pointers
+        wxStaticText            *pQueryCol1Msg;
+        wxChoice                *pQueryCol1Choice;
+        wxStaticText            *pQueryNotMsg;
+        wxCheckBox              *pQueryNotCheck;
+        wxStaticText            *pQueryOperatorMsg;
+        wxChoice                *pQueryOperatorChoice;
+        wxStaticText            *pQueryCol2Msg;
+        wxChoice                *pQueryCol2Choice;
+        wxStaticText            *pQueryValue1Msg;
+        wxTextCtrl              *pQueryValue1Txt;
+        wxStaticText            *pQueryValue2Msg;
+        wxTextCtrl              *pQueryValue2Txt;
+        wxStaticText            *pQuerySqlWhereMsg;
+        wxTextCtrl              *pQuerySqlWhereMtxt;
+        wxButton                *pQueryAddBtn;
+        wxButton                *pQueryAndBtn;
+        wxButton                *pQueryOrBtn;
+        wxButton                *pQueryLParenBtn;
+        wxButton                *pQueryRParenBtn;
+        wxButton                *pQueryDoneBtn;
+        wxButton                *pQueryClearBtn;
+        wxButton                *pQueryCountBtn;
+        wxButton                *pQueryHelpBtn;
+        wxStaticBox             *pQueryHintGrp;
+        wxStaticText            *pQueryHintMsg;
+
+        wxTextCtrl              *pFocusTxt;
+
+        CqueryDlg(wxWindow *parent, wxDb *pDb, wxChar *tblName[], const wxString &pWhereArg);
+        ~CqueryDlg();
+
+        void        OnButton( wxCommandEvent &event );
+        void        OnCommand(wxWindow& win, wxCommandEvent& event);
+        void        OnCloseWindow(wxCloseEvent& event);
+        void        OnActivate(bool) {};  // necessary for hot keys
+
+        void        AppendToWhere(wxChar *s);
+        void        ProcessAddBtn();
+        void        ProcessCountBtn();
+        bool        ValidateWhereClause();

 
 DECLARE_EVENT_TABLE()
 };  // CqueryDlg
 
 DECLARE_EVENT_TABLE()
 };  // CqueryDlg