e70e8f4cf3
Removed all tabs, and replaced with spaces accordingly git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5653 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
471 lines
15 KiB
C++
471 lines
15 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// Name: listdb.cpp
|
|
// Purpose: Data table lookup listbox code
|
|
// Author: George Tasker/Doug Card
|
|
// Modified by:
|
|
// Created: 1996
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) 1996 Remstar International, Inc.
|
|
// Licence: wxWindows licence
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
/*
|
|
// SYNOPSIS START
|
|
|
|
Member functions for the classes defined in LISTDB.H
|
|
|
|
This class is used to present a generic ListBox lookup window for
|
|
use with any of the object creation/selection choice widgets. This
|
|
dialog window will present a (possibly) scrolling list of values
|
|
that come from a data table source. Based on the object type passed
|
|
in the constructor, a ListBox is built to present the user with a
|
|
single selection listbox.
|
|
|
|
The string selected from the list box is stored in the Global variable
|
|
"ListDB_Seclection", and will remain set until another interation of this
|
|
routine is called.
|
|
|
|
For each object (database) type that is to be used, an overridden
|
|
constructor should be written to appropriately link to the proper
|
|
data table/object for building the list.
|
|
|
|
The data table record access is all handled through the routines
|
|
in this module, interfacing with the methods defined in wxTable.
|
|
|
|
All objects which use data table access must be initialized and
|
|
have opened the table prior to passing them in the dialog
|
|
constructor, and the 'where' query should already have been set
|
|
and performed before creating this dialog instance.
|
|
|
|
// SYNOPSIS STOP
|
|
*/
|
|
|
|
#ifdef __GNUG__
|
|
#pragma implementation "listdb.h"
|
|
#endif
|
|
|
|
#include "wx/wxprec.h"
|
|
|
|
#ifdef __BORLANDC__
|
|
#pragma hdrstop
|
|
#endif //__BORLANDC__
|
|
|
|
#ifndef WX_PRECOMP
|
|
#include <wx/wx.h>
|
|
#endif //WX_PRECOMP
|
|
|
|
#include <wx/dbtable.h>
|
|
|
|
extern DbList WXDLLEXPORT *PtrBegDbList; /* from db.cpp, used in getting back error results from db connections */
|
|
|
|
#include "listdb.h"
|
|
|
|
// Global structure for holding ODBC connection information
|
|
extern DbStuff DbConnectInf;
|
|
|
|
// Global database connection
|
|
extern wxDB *READONLY_DB;
|
|
|
|
|
|
// Used for passing the selected listbox selection back to the calling
|
|
// routine. This variable must be declared as 'extern' in the calling
|
|
// source module
|
|
char ListDB_Selection[LOOKUP_COL_LEN+1];
|
|
|
|
// If the listbox contains two columns of data, the second column is
|
|
// returned in this variable.
|
|
char ListDB_Selection2[LOOKUP_COL_LEN+1];
|
|
|
|
// Constants
|
|
const int LISTDB_NO_SPACES_BETWEEN_COLS = 3;
|
|
|
|
|
|
|
|
/*
|
|
* This function will return the exact string(s) from the database engine
|
|
* indicating all error conditions which have just occured during the
|
|
* last call to the database engine.
|
|
*
|
|
* This demo uses the returned string by displaying it in a wxMessageBox. The
|
|
* formatting therefore is not the greatest, but this is just a demo, not a
|
|
* finished product. :-) gt
|
|
*
|
|
* NOTE: The value returned by this function is for temporary use only and
|
|
* should be copied for long term use
|
|
*/
|
|
char *GetExtendedDBErrorMsg2(char *ErrFile, int ErrLine)
|
|
{
|
|
static wxString msg;
|
|
|
|
wxString tStr;
|
|
|
|
if (ErrFile || ErrLine)
|
|
{
|
|
msg += "File: ";
|
|
msg += ErrFile;
|
|
msg += " Line: ";
|
|
tStr.Printf("%d",ErrLine);
|
|
msg += tStr.GetData();
|
|
msg += "\n";
|
|
}
|
|
|
|
msg.Append ("\nODBC errors:\n");
|
|
msg += "\n";
|
|
|
|
/* Scan through each database connection displaying
|
|
* any ODBC errors that have occured. */
|
|
for (DbList *pDbList = PtrBegDbList; pDbList; pDbList = pDbList->PtrNext)
|
|
{
|
|
// Skip over any free connections
|
|
if (pDbList->Free)
|
|
continue;
|
|
// Display errors for this connection
|
|
for (int i = 0; i < DB_MAX_ERROR_HISTORY; i++)
|
|
{
|
|
if (pDbList->PtrDb->errorList[i])
|
|
{
|
|
msg.Append(pDbList->PtrDb->errorList[i]);
|
|
if (strcmp(pDbList->PtrDb->errorList[i],"") != 0)
|
|
msg.Append("\n");
|
|
}
|
|
}
|
|
}
|
|
msg += "\n";
|
|
|
|
return (char*) (const char*) msg;
|
|
} // GetExtendedDBErrorMsg
|
|
|
|
|
|
|
|
// Clookup constructor
|
|
Clookup::Clookup(char *tblName, char *colName) : wxTable(READONLY_DB, tblName, 1, NULL, !QUERY_ONLY, DbConnectInf.defaultDir)
|
|
{
|
|
|
|
SetColDefs (0, colName, DB_DATA_TYPE_VARCHAR, lookupCol, SQL_C_CHAR, LOOKUP_COL_LEN+1, FALSE, FALSE);
|
|
|
|
} // Clookup()
|
|
|
|
|
|
// Clookup2 constructor
|
|
Clookup2::Clookup2(char *tblName, char *colName1, char *colName2, wxDB *pDb)
|
|
: wxTable(pDb, tblName, (1 + (strlen(colName2) > 0)), NULL, !QUERY_ONLY, DbConnectInf.defaultDir)
|
|
{
|
|
int i = 0;
|
|
|
|
SetColDefs (i, colName1, DB_DATA_TYPE_VARCHAR, lookupCol1, SQL_C_CHAR, LOOKUP_COL_LEN+1, FALSE, FALSE);
|
|
|
|
if (strlen(colName2) > 0)
|
|
SetColDefs (++i, colName2, DB_DATA_TYPE_VARCHAR, lookupCol2, SQL_C_CHAR, LOOKUP_COL_LEN+1, FALSE, FALSE);
|
|
|
|
} // Clookup2()
|
|
|
|
|
|
BEGIN_EVENT_TABLE(ClookUpDlg, wxDialog)
|
|
// EVT_LISTBOX(LOOKUP_DIALOG_SELECT, ClookUpDlg::SelectCallback)
|
|
EVT_BUTTON(LOOKUP_DIALOG_OK, ClookUpDlg::OnButton)
|
|
EVT_BUTTON(LOOKUP_DIALOG_CANCEL, ClookUpDlg::OnButton)
|
|
EVT_CLOSE(ClookUpDlg::OnClose)
|
|
END_EVENT_TABLE()
|
|
|
|
// This is a generic lookup constructor that will work with any table and any column
|
|
ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, char *colName,
|
|
char *where, char *orderBy) : wxDialog (parent, LOOKUP_DIALOG, "Select...", wxPoint(-1, -1), wxSize(400, 290))
|
|
{
|
|
wxBeginBusyCursor();
|
|
|
|
strcpy(ListDB_Selection,"");
|
|
widgetPtrsSet = FALSE;
|
|
lookup = 0;
|
|
lookup2 = 0;
|
|
noDisplayCols = 1;
|
|
col1Len = 0;
|
|
|
|
pLookUpSelectList = new wxListBox(this, LOOKUP_DIALOG_SELECT, wxPoint( 5, 15), wxSize(384, 195), 0, 0, wxLB_SINGLE|wxLB_ALWAYS_SB, wxDefaultValidator, "LookUpSelectList");
|
|
pLookUpOkBtn = new wxButton(this, LOOKUP_DIALOG_OK, "&Ok", wxPoint(113, 222), wxSize( 70, 35), 0, wxDefaultValidator, "LookUpOkBtn");
|
|
pLookUpCancelBtn = new wxButton(this, LOOKUP_DIALOG_CANCEL, "C&ancel", wxPoint(212, 222), wxSize( 70, 35), 0, wxDefaultValidator, "LookUpCancelBtn");
|
|
|
|
widgetPtrsSet = TRUE;
|
|
|
|
// Query the lookup table and display the result set
|
|
if (!(lookup = new Clookup(tableName, colName)))
|
|
{
|
|
wxMessageBox("Error allocating memory for 'Clookup'object.","Error...");
|
|
Close();
|
|
return;
|
|
}
|
|
|
|
if (!lookup->Open())
|
|
{
|
|
wxString tStr;
|
|
tStr.Printf("Unable to open the table '%s'.",tableName);
|
|
wxMessageBox(tStr,"ODBC Error...");
|
|
Close();
|
|
return;
|
|
}
|
|
|
|
lookup->orderBy = orderBy;
|
|
lookup->where = where;
|
|
if (!lookup->Query())
|
|
{
|
|
wxMessageBox("ODBC error during Query()","ODBC Error...");
|
|
Close();
|
|
return;
|
|
}
|
|
|
|
// Fill in the list box from the query result set
|
|
while (lookup->GetNext())
|
|
pLookUpSelectList->Append(lookup->lookupCol);
|
|
|
|
// Highlight the first list item
|
|
pLookUpSelectList->SetSelection(0);
|
|
|
|
// Make the OK activate by pressing Enter
|
|
if (pLookUpSelectList->Number())
|
|
pLookUpOkBtn->SetDefault();
|
|
else
|
|
{
|
|
pLookUpCancelBtn->SetDefault();
|
|
pLookUpOkBtn->Enable(FALSE);
|
|
}
|
|
|
|
// Display the dialog window
|
|
SetTitle(windowTitle);
|
|
Centre(wxBOTH);
|
|
wxEndBusyCursor();
|
|
ShowModal();
|
|
|
|
} // Generic lookup constructor
|
|
|
|
|
|
//
|
|
// 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 lenght 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::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
|
|
char *dispCol1, char *dispCol2, char *where, char *orderBy, bool distinctValues,
|
|
char *selectStmt, int maxLenCol1, wxDB *pDb, bool allowOk) : wxDialog (parent, LOOKUP_DIALOG, "Select...", wxPoint(-1, -1), wxSize(400, 290))
|
|
{
|
|
wxBeginBusyCursor();
|
|
|
|
strcpy(ListDB_Selection,"");
|
|
strcpy(ListDB_Selection2,"");
|
|
widgetPtrsSet = FALSE;
|
|
lookup = 0;
|
|
lookup2 = 0;
|
|
noDisplayCols = (strlen(dispCol2) ? 2 : 1);
|
|
col1Len = 0;
|
|
|
|
wxFont fixedFont(12,wxMODERN,wxNORMAL,wxNORMAL);
|
|
|
|
// this is done with fixed font so that the second column (if any) will be left
|
|
// justified in the second column
|
|
pLookUpSelectList = new wxListBox(this, LOOKUP_DIALOG_SELECT, wxPoint(5, 15), wxSize(384, 195), 0, 0, wxLB_SINGLE|wxLB_ALWAYS_SB, wxDefaultValidator, "LookUpSelectList");
|
|
|
|
pLookUpSelectList->SetFont(fixedFont);
|
|
|
|
pLookUpOkBtn = new wxButton(this, LOOKUP_DIALOG_OK, "&Ok", wxPoint(113, 222), wxSize(70, 35), 0, wxDefaultValidator, "LookUpOkBtn");
|
|
pLookUpCancelBtn = new wxButton(this, LOOKUP_DIALOG_CANCEL, "C&ancel", wxPoint(212, 222), wxSize(70, 35), 0, wxDefaultValidator, "LookUpCancelBtn");
|
|
|
|
widgetPtrsSet = TRUE;
|
|
|
|
// Query the lookup table and display the result set
|
|
if (!(lookup2 = new Clookup2(tableName, dispCol1, dispCol2, pDb)))
|
|
{
|
|
wxMessageBox("Error allocating memory for 'Clookup2'object.","Error...");
|
|
Close();
|
|
return;
|
|
}
|
|
|
|
if (!lookup2->Open())
|
|
{
|
|
wxString tStr;
|
|
tStr.Printf("Unable to open the table '%s'.",tableName);
|
|
tStr += GetExtendedDBErrorMsg2(__FILE__,__LINE__);
|
|
wxMessageBox(tStr,"ODBC Error...");
|
|
Close();
|
|
return;
|
|
}
|
|
|
|
// If displaying 2 columns, determine the maximum length of column1
|
|
int maxColLen;
|
|
if (maxLenCol1)
|
|
maxColLen = col1Len = maxLenCol1; // user passed in max col length for column 1
|
|
else
|
|
{
|
|
maxColLen = LOOKUP_COL_LEN;
|
|
if (strlen(dispCol2))
|
|
{
|
|
wxString q = "SELECT MAX({fn LENGTH(";
|
|
q += dispCol1;
|
|
q += ")}), NULL";
|
|
q += " FROM ";
|
|
q += tableName;
|
|
if (strlen(where))
|
|
{
|
|
q += " WHERE ";
|
|
q += where;
|
|
}
|
|
if (!lookup2->QueryBySqlStmt((char*) (const char*) q))
|
|
{
|
|
wxMessageBox("ODBC error during QueryBySqlStmt()","ODBC Error...");
|
|
Close();
|
|
return;
|
|
}
|
|
if (lookup2->GetNext())
|
|
maxColLen = col1Len = atoi(lookup2->lookupCol1);
|
|
else
|
|
wxMessageBox("ODBC error during GetNext()","ODBC Error...");
|
|
}
|
|
}
|
|
|
|
// Query the actual record set
|
|
if (selectStmt && strlen(selectStmt)) // Query by sql stmt passed in
|
|
{
|
|
if (!lookup2->QueryBySqlStmt(selectStmt))
|
|
{
|
|
wxMessageBox("ODBC error during QueryBySqlStmt()","ODBC Error...");
|
|
Close();
|
|
return;
|
|
}
|
|
}
|
|
else // Query using where and order by clauses
|
|
{
|
|
lookup2->orderBy = orderBy;
|
|
lookup2->where = where;
|
|
if (!lookup2->Query(FALSE, distinctValues))
|
|
{
|
|
wxMessageBox("ODBC error during Query()","ODBC Error...");
|
|
Close();
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Fill in the list box from the query result set
|
|
wxString s;
|
|
while (lookup2->GetNext())
|
|
{
|
|
s = lookup2->lookupCol1;
|
|
if (strlen(dispCol2)) // Append the optional column 2
|
|
{
|
|
s.Append(' ', (maxColLen + LISTDB_NO_SPACES_BETWEEN_COLS - strlen(lookup2->lookupCol1)));
|
|
s.Append(lookup2->lookupCol2);
|
|
}
|
|
pLookUpSelectList->Append(s);
|
|
}
|
|
|
|
// Highlight the first list item
|
|
pLookUpSelectList->SetSelection(0);
|
|
|
|
// Make the OK activate by pressing Enter
|
|
if (pLookUpSelectList->Number())
|
|
pLookUpOkBtn->SetDefault();
|
|
else
|
|
{
|
|
pLookUpCancelBtn->SetDefault();
|
|
pLookUpOkBtn->Enable(FALSE);
|
|
}
|
|
|
|
pLookUpOkBtn->Enable(allowOk);
|
|
|
|
// Display the dialog window
|
|
SetTitle(windowTitle);
|
|
Centre(wxBOTH);
|
|
wxEndBusyCursor();
|
|
ShowModal();
|
|
|
|
} // Generic lookup constructor 2
|
|
|
|
|
|
void ClookUpDlg::OnClose(wxCloseEvent& event)
|
|
{
|
|
widgetPtrsSet = FALSE;
|
|
GetParent()->Enable(TRUE);
|
|
|
|
if (lookup)
|
|
delete lookup;
|
|
if (lookup2)
|
|
delete lookup2;
|
|
|
|
while (wxIsBusy()) wxEndBusyCursor();
|
|
event.Skip();
|
|
|
|
// return TRUE;
|
|
|
|
} // ClookUpDlg::OnClose
|
|
|
|
|
|
void ClookUpDlg::OnButton( wxCommandEvent &event )
|
|
{
|
|
wxWindow *win = (wxWindow*) event.GetEventObject();
|
|
OnCommand( *win, event );
|
|
}
|
|
|
|
|
|
void ClookUpDlg::OnCommand(wxWindow& win, wxCommandEvent& event)
|
|
{
|
|
wxString widgetName = win.GetName();
|
|
|
|
if (widgetPtrsSet)
|
|
{
|
|
// OK Button
|
|
if (widgetName == pLookUpOkBtn->GetName())
|
|
{
|
|
if (pLookUpSelectList->GetSelection() != -1)
|
|
{
|
|
if (noDisplayCols == 1)
|
|
strcpy (ListDB_Selection, pLookUpSelectList->GetStringSelection());
|
|
else // 2 display columns
|
|
{
|
|
wxString s = pLookUpSelectList->GetStringSelection();
|
|
// Column 1
|
|
s = s.SubString(0, col1Len-1);
|
|
s = s.Strip();
|
|
strcpy(ListDB_Selection, s);
|
|
// Column 2
|
|
s = pLookUpSelectList->GetStringSelection();
|
|
s = s.Mid(col1Len + LISTDB_NO_SPACES_BETWEEN_COLS);
|
|
s = s.Strip();
|
|
strcpy(ListDB_Selection2, s);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
strcpy(ListDB_Selection,"");
|
|
strcpy(ListDB_Selection2,"");
|
|
}
|
|
Close();
|
|
} // OK Button
|
|
|
|
// Cancel Button
|
|
if (widgetName == pLookUpCancelBtn->GetName())
|
|
{
|
|
strcpy (ListDB_Selection,"");
|
|
strcpy (ListDB_Selection2,"");
|
|
Close();
|
|
} // Cancel Button
|
|
}
|
|
|
|
}; // ClookUpDlg::OnCommand
|
|
|
|
// *********************************** listdb.cpp **********************************
|