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ccindex.cpp
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C/C++ Source or Header
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1999-03-17
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// ------------------------------- //
// -------- Start of File -------- //
// ------------------------------- //
// ----------------------------------------------------------- //
// C++ Source Code File Name: ccindex.cpp
// Compiler Used: MSVC40, DJGPP 2.7.2.1, GCC 2.7.2.1, HP CPP 10.24
// Produced By: Doug Gaer
// File Creation Date: 09/17/1997
// Date Last Modified: 03/17/1999
// Copyright (c) 1997 Douglas M. Gaer
// ----------------------------------------------------------- //
// ------------- Program Description and Details ------------- //
// ----------------------------------------------------------- //
/*
The VBD C++ classes are copyright (c) 1997, by Douglas M. Gaer.
All those who put this code or its derivatives in a commercial
product MUST mention this copyright in their documentation for
users of the products in which this code or its derivative
classes are used. Otherwise, you have the freedom to redistribute
verbatim copies of this source code, adapt it to your specific
needs, or improve the code and release your improvements to the
public provided that the modified files carry prominent notices
stating that you changed the files and the date of any change.
THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.
THE ENTIRE RISK OF THE QUALITY AND PERFORMANCE OF THIS SOFTWARE
IS WITH YOU. SHOULD ANY ELEMENT OF THIS SOFTWARE PROVE DEFECTIVE,
YOU WILL ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR
CORRECTION.
The CCIndex class is a persistent string VBD database used
to store various name and address information in a 3" X 5"
index card file format. All the string members can grow and
shrink as needed.
*/
// ----------------------------------------------------------- //
#include "ccindex.h"
#include "strutil.h"
unsigned CCIndex::ObjectLength()
{
unsigned len = StringFileLength(card_name) + \
StringFileLength(company_name) + \
StringFileLength(department_name) + \
StringFileLength(phone_number) + \
StringFileLength(fax_number) + \
StringFileLength(cell_number) + \
StringFileLength(beeper_number) + \
StringFileLength(email_address) + \
StringFileLength(street_address) + \
StringFileLength(internet_urls) + \
StringFileLength(comments_block);
return len;
}
FAU CCIndex::Write()
{
ObjectHeader oh;
FAU addr = pod->OpenDatabase()->Alloc(ObjectLength() + sizeof(ObjectHeader));
if(!addr) return 0;
oh.ClassID = GetClassID();
oh.ObjectID = addr;
WriteObjHeader(oh);
WriteString(card_name);
WriteString(company_name);
WriteString(department_name);
WriteString(phone_number);
WriteString(fax_number);
WriteString(cell_number);
WriteString(beeper_number);
WriteString(email_address);
WriteString(street_address);
WriteString(internet_urls);
WriteString(comments_block);
objectaddress = addr;
// Add the entry to the Index file
if (UsingIndex()) {
EntryKey key(card_name.c_str(), oh.ObjectID, oh.ClassID);
AddKey(key);
}
return addr;
}
void CCIndex::Read(FAU Address)
{
ObjectHeader oh;
ReadObjHeader(oh, Address);
if(oh.ClassID != GetClassID()) return; // Incorrect object type
ReadString(card_name);
ReadString(company_name);
ReadString(department_name);
ReadString(phone_number);
ReadString(fax_number);
ReadString(cell_number);
ReadString(beeper_number);
ReadString(email_address);
ReadString(street_address);
ReadString(internet_urls);
ReadString(comments_block);
objectaddress = oh.ObjectID;
}
FAU CCIndex::Find()
// Find object by seaching the database for its primary data members
{
CCIndex ccindex;
ccindex.card_name = this->card_name;
ccindex.company_name = this->company_name;
ccindex.department_name = this->department_name;
ccindex.phone_number = this->phone_number;
ccindex.fax_number = this->fax_number;
ccindex.cell_number = this->cell_number;
ccindex.beeper_number = this->beeper_number;
ccindex.email_address = this->email_address;
ccindex.street_address = this->street_address;
ccindex.internet_urls = this->internet_urls;
ccindex.comments_block = this->comments_block;
int rv; // Return value
// Search the index file for this entry
if(UsingIndex()) {
EntryKey e(this->card_name.c_str());
rv = FindKey(e);
if(rv) { // Found the object in the index file
Read(e.object_address);
objectaddress = e.object_address;
return e.object_address;
}
else
return 0;
}
FAU oa; // Object Address
VBHeader vb; // Variable Block Header
ObjectHeader oh; // Object Header
FAU vbdfileEOF = pod->OpenDatabase()->GetEOF();
FAU addr = 0;
addr = pod->OpenDatabase()->FindFirstVB(addr); // Search the entire file
if(addr == 0) return 0; // No variable blocks found in file
while(1) {
if(addr >= vbdfileEOF) break;
pod->OpenDatabase()->Read(&vb, sizeof(VBHeader), addr);
if(vb.CkWord == CheckWord) {
if((__SBYTE__)vb.Status == NormalVB) {
oa = addr + sizeof(VBHeader);
ReadObjHeader(oh, oa);
if(oh.ClassID == GetClassID()) {
Read(oa);
if(card_name == ccindex.card_name) {
objectaddress = oa;
return oa; // Found unique data member
}
}
}
addr = addr + vb.Length; // Goto the next variable block
}
else {
addr = pod->OpenDatabase()->VBSearch(addr);
if(!addr) break;
}
}
// Reset the objects data
this->card_name = ccindex.card_name;
this->company_name = ccindex.company_name;
this->department_name = ccindex.department_name;
this->phone_number = ccindex.phone_number;
this->fax_number = ccindex.fax_number;
this->cell_number = ccindex.cell_number;
this->beeper_number = ccindex.beeper_number;
this->email_address = ccindex.email_address;
this->street_address = ccindex.street_address;
this->internet_urls = ccindex.internet_urls;
this->comments_block = ccindex.comments_block;
return 0; // Could not find
}
void CCIndex::Copy(const CCIndex &ob)
{
card_name = ob.card_name;
company_name = ob.company_name;
department_name = ob.department_name;
phone_number = ob.phone_number;
fax_number = ob.fax_number;
cell_number = ob.cell_number;
beeper_number = ob.beeper_number;
email_address = ob.email_address;
street_address = ob.street_address;
internet_urls = ob.internet_urls;
comments_block = ob.comments_block;
objectaddress = ob.objectaddress;
}
int CCIndex::FullCompare(const CCIndex &ob)
{
if(card_name != ob.card_name) return 0;
if(company_name != ob.company_name) return 0;
if(department_name != ob.department_name) return 0;
if(phone_number != ob.phone_number) return 0;
if(fax_number != ob.fax_number) return 0;
if(cell_number != ob.cell_number) return 0;
if(beeper_number != ob.beeper_number) return 0;
if(email_address != ob.email_address) return 0;
if(street_address != ob.street_address) return 0;
if(internet_urls != ob.internet_urls) return 0;
if(comments_block != ob.comments_block) return 0;
return 1;
}
int operator==(const CCIndex &a, const CCIndex &b)
{
return CaseICmp(a.GetCardName(), b.GetCardName()) == 0;
}
int operator!=(const CCIndex &a, const CCIndex &b)
{
return CaseICmp(a.GetCardName(), b.GetCardName()) != 0;
}
int operator>(const CCIndex &a, const CCIndex &b)
{
return CaseICmp(a.GetCardName(), b.GetCardName()) > 0;
}
int operator>=(const CCIndex &a, const CCIndex &b)
{
return CaseICmp(a.GetCardName(), b.GetCardName()) >= 0;
}
int operator<(const CCIndex &a, const CCIndex &b)
{
return CaseICmp(a.GetCardName(), b.GetCardName()) < 0;
}
int operator<=(const CCIndex &a, const CCIndex &b)
{
return CaseICmp(a.GetCardName(), b.GetCardName()) <= 0;
}
FAU CCIndex::Delete()
{
if(UsingIndex()) {
EntryKey e(this->card_name.c_str());
int rv = FindKey(e);
if(rv) { // Found the object in the index file
FAU addr = e.object_address;
DeleteObject(e.object_address); // Delete from the