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git-svn-id: svn://10.65.10.50/trunk@1470 c028cbd2-c16b-5b4b-a496-9718f37d4682
This commit is contained in:
alex 1995-06-12 16:05:26 +00:00
parent 720e9a0326
commit 182b649bde
2 changed files with 27 additions and 27 deletions
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48
include/memo.cpp
View File

@ -9,7 +9,7 @@
#define BLOCK_SIZE 1024
TMemo_file::TMemo_file(const char* a) :
_fname(a), _fp(NULL), _isnew(NULL)
_fname(a), _fp(NULL), _isnew(NULL)
{
// handles: open file or create
_fname.ext("mem");
@ -38,12 +38,12 @@ TMemo_file::~TMemo_file()
{
if (_fp) fclose(_fp);
}
bool TMemo_file::_find_id(long id)
{
if (id > _id_max && id < 0)
error_box("File memo inconsistente");
bool dndir = FALSE /* id > (_id_max/2l) */ ;
_current = -1l;
@ -52,7 +52,7 @@ bool TMemo_file::_find_id(long id)
fseek(_fp, pos, dndir ? SEEK_END : SEEK_SET);
int ok = 0;
while (_current < id)
{
// se si va all'indietro, questa non funzia: nonostante
@ -64,8 +64,8 @@ bool TMemo_file::_find_id(long id)
if (_current < id)
{
long ofs = dndir ? -_next_ofs-INFO_SIZE-INFO_SIZE :
_next_ofs+INFO_SIZE;
_next_ofs+INFO_SIZE;
ok = fseek(_fp, ofs, SEEK_CUR);
}
if (ok) break;
@ -74,22 +74,22 @@ bool TMemo_file::_find_id(long id)
_current = ok ? -1l : id;
return _current == id;
}
bool TMemo_file::get_field(TTextfile& t, long id)
{
bool ok = _find_id(id);
if (ok)
{
_current = id;
// te lo faccio io, poi so' cazzi tua se sbagli
t.destroy();
TString256 line;
// block read until done; transfer block to txt
// block by block
long size = _next_ofs < BLOCK_SIZE ? _next_ofs : BLOCK_SIZE;
int lcnt = 0;
@ -118,7 +118,7 @@ bool TMemo_file::get_field(TTextfile& t, long id)
return ok;
}
long TMemo_file::set_field(TTextfile& t, long id)
long TMemo_file::set_field(const TTextfile& t, long id)
{
bool ok = TRUE;
long ret = 0;
@ -127,7 +127,7 @@ long TMemo_file::set_field(TTextfile& t, long id)
bool at_end = id == -1 || (id != -1 && id > _id_max);
// the casinating insertion in the middol
bool in_mid = FALSE;
if (!at_end)
{
ok = _find_id(id);
@ -137,17 +137,17 @@ long TMemo_file::set_field(TTextfile& t, long id)
// vediamo dove
long pos = HEADER_SIZE;
fseek(_fp, pos, SEEK_SET);
int ok = 0;
while (_current < id)
{
fread(&_current, sizeof(long), 1, _fp);
fread(&_next_ofs, sizeof(long), 1, _fp);
if (_current < id)
{
long ofs = _next_ofs+INFO_SIZE;
ok = fseek(_fp, ofs, SEEK_CUR);
long ofs = _next_ofs+INFO_SIZE;
ok = fseek(_fp, ofs, SEEK_CUR);
}
else
{
@ -179,7 +179,7 @@ long TMemo_file::set_field(TTextfile& t, long id)
{
line = t.line(i);
char c;
for (int k = 0; c = line[k]; k++)
{
fwrite(&c, sizeof(char), 1, _fp);
@ -212,10 +212,10 @@ long TMemo_file::set_field(TTextfile& t, long id)
FILE* tfp = fopen(tmp, "wb+");
fseek(_fp, 0, SEEK_SET);
long size = BLOCK_SIZE;
bool stop = FALSE;
// copy file into temp up to TO pos
// use 1k blocks for speed
for (int i = 0; !stop; i++)
@ -240,7 +240,7 @@ long TMemo_file::set_field(TTextfile& t, long id)
{
line = t.line(i);
char c;
for (int k = 0; c = line[k]; k++)
{
fwrite(&c, sizeof(char), 1, tfp);
@ -283,7 +283,7 @@ long TMemo_file::set_field(TTextfile& t, long id)
return ret;
}
bool TMemo_file::remove_field(long id)
{
bool ok = _find_id(id);
@ -296,10 +296,10 @@ bool TMemo_file::remove_field(long id)
FILE* tfp = fopen(tmp, "wb+");
fseek(_fp, 0, SEEK_SET);
long size = BLOCK_SIZE;
bool stop = FALSE;
// copy file into temp up to TO pos
// use 1k blocks for speed
for (int i = 0; !stop; i++)
@ -331,7 +331,7 @@ bool TMemo_file::remove_field(long id)
}
return ok;
}
bool TMemo_file::edit_field(long id)
{
return TRUE;

6
include/memo.h
View File

@ -20,7 +20,7 @@ class TMemo_file : public TObject
long _next_ofs;
bool _find_id(long id);
public:
// retrieves text with specified ID (or last one passed);
@ -33,10 +33,10 @@ public:
bool remove_field(long id);
// calls editor to edit text (specified as mem into config)
bool edit_field(long id = -1l);
// returns the maximum ID used (<= n. of fields in file)
long max_id() const { return _id_max; }
// must be passed the basename of archive
TMemo_file(const char* archive);
~TMemo_file();