Added ODBC database classes and sample from RemStar (sample needs work for wxWin 2)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@385 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/db/listdb.h

@@ -0,0 +1,125 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        listdb.h
+// Purpose:     wxWindows database demo app
+// Author:      George Tasker
+// Modified by:
+// Created:     1996
+// RCS-ID:      $Id$
+// Copyright:   (c) 1996 Remstar International, Inc.
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#pragma interface "listdb.h"
+
+/*
+/*
+// SYNOPSIS START
+
+	Contains dialog class for creating a data table lookup listbox
+
+// SYNOPSIS STOP
+*/
+
+#ifndef LISTDB_DOT_H
+#define LISTDB_DOT_H
+
+
+#include <wx/dbtable.h>
+
+const LOOKUP_COL_LEN = 250;
+
+// Global database connection
+extern wxDB *READONLY_DB;
+
+// Clookup class
+class Clookup : public wxTable
+{
+	public:
+
+		char lookupCol[LOOKUP_COL_LEN+1];
+
+		Clookup(char *tblName, char *colName);
+
+};  // Clookup
+
+// Clookup2 class
+class Clookup2 : public wxTable
+{
+	public:
+
+		char lookupCol1[LOOKUP_COL_LEN+1];
+		char lookupCol2[LOOKUP_COL_LEN+1];
+
+		Clookup2(char *tblName, char *colName1, char *colName2, wxDB *pDb);
+
+};  // Clookup2
+
+class ClookUpDlg : public wxDialogBox
+{
+	private:
+		bool			 widgetPtrsSet;
+		int			 currentCursor;
+		Clookup		*lookup;
+		Clookup2		*lookup2;
+		int			 noDisplayCols;
+		int			 col1Len;
+
+		wxListBox	*pLookUpSelectList;
+		wxButton		*pLookUpOkBtn;
+		wxButton		*pLookUpCancelBtn;
+
+	public:
+
+		// This is a generic lookup constructor that will work with any table and any column
+		ClookUpDlg(wxWindow	*parent,
+					  char		*windowTitle,
+					  char		*tableName,
+					  char		*colName,
+					  char		*where,
+					  char		*orderBy);
+
+		//
+		// This is a generic lookup constructor that will work with any table and any column.
+		// It extends the capabilites of the lookup dialog in the following ways:
+		//
+		//	1) 2 columns rather than one
+		// 2) The ability to select DISTINCT column values
+		//
+		// Only set distinctValues equal to true if necessary.  In many cases, the constraints
+		// of the index(es) will enforce this uniqueness.  Selecting DISTINCT does require
+		// overhead by the database to ensure that all values returned are distinct.  Therefore,
+		// use this ONLY when you need it.
+		//
+		// For complicated queries, you can pass in the sql select statement.  This would be
+		// necessary if joins are involved since by default both columns must come from the
+		// same table.
+		//
+		// If you do query by sql statement, you must pass in the maximum length of column1,
+		// since it cannot be derived when you query using your own sql statement.
+		//
+		// The optional database connection can be used if you'd like the lookup class
+		// to use a database pointer other than the global READONLY_DB.  This is necessary if
+		// records are being saved, but not committed to the db, yet should be included
+		// in the lookup window.
+		//
+		ClookUpDlg(wxWindow	*parent,
+					  char		*windowTitle,
+					  char		*tableName,
+					  char		*dispCol1,					// Must have at least 1 display column
+					  char		*dispCol2,					// Optional
+					  char		*where,
+					  char		*orderBy,
+					  bool		 distinctValues,			// e.g. SELECT DISTINCT ...
+					  char		*selectStmt = 0,			// If you wish to query by SQLstmt (complicated lookups)
+					  int			 maxLenCol1 = 0,			// Mandatory if querying by SQLstmt
+					  wxDB			*pDb = READONLY_DB,		// Database connection pointer
+					  bool		 allowOk		= TRUE);		// is the OK button enabled
+
+		void		OnCommand(wxWindow& win, wxCommandEvent& event);
+		bool		OnClose();
+		void		OnActivate(bool) {};  // necessary for hot keys
+};
+
+#endif  // LISTDB_DOT_H
+
+// ************************************ listdb.h *********************************