campo-sirio/include/form.cpp
guy 00cd69e1f6 Aggiunti campi alternativi nei JOIN delle relazioni
git-svn-id: svn://10.65.10.50/trunk@839 c028cbd2-c16b-5b4b-a496-9718f37d4682
1995-01-09 16:51:21 +00:00

1357 lines
27 KiB
C++
Executable File

#include <ctype.h>
#include <stdlib.h>
#include <applicat.h>
#include <form.h>
#include <msksheet.h>
#include <relation.h>
#include <sheet.h>
#include <utility.h>
#include "..\ba\ba2100.h"
static TForm* _form = NULL;
static TForm& form()
{
CHECK(_form, "Can't print NULL form");
return *_form;
}
///////////////////////////////////////////////////////////
// TForm_flags
///////////////////////////////////////////////////////////
struct TForm_flags : public TObject
{
bool automagic : 1;
bool enabled : 1;
bool shown : 1;
protected:
void print_on(ostream& out) const;
public:
TForm_flags();
void print_on(TMask& m);
void read_from(const TMask& m);
bool update(const char* s);
};
TForm_flags::TForm_flags()
{
automagic = FALSE;
shown = enabled = TRUE;
}
bool TForm_flags::update(const char* s)
{
for (; *s; s++) switch(toupper(*s))
{
case 'A':
automagic = TRUE; break;
case 'D':
enabled = FALSE; break;
case 'H':
shown = FALSE; break;
default :
error_box("Unknown form item flag '%c'", *s); break;
}
return TRUE;
}
void TForm_flags::print_on(ostream& out) const
{
TString16 s;
if (automagic) s << "A";
if (!enabled) s << "D";
if (!shown) s << "H";
if (s.not_empty())
out << " FLAGS \"" << s << '"' << endl;
}
void TForm_flags::print_on(TMask& m)
{
m.set(F_DISABLED, enabled ? " " : "X");
m.set(F_HIDDEN, shown ? " " : "X");
m.set(F_AUTOMAGIC, automagic ? "X" : " ");
}
void TForm_flags::read_from(const TMask& m)
{
shown = !m.get_bool(F_HIDDEN);
enabled = !m.get_bool(F_DISABLED);
automagic = m.get_bool(F_AUTOMAGIC);
}
///////////////////////////////////////////////////////////
// TForm_item
///////////////////////////////////////////////////////////
class TForm_item : public TObject
{
TPrint_section* _section;
TString _desc;
TForm_flags _flag;
TBit_array _group;
TArray _message;
protected:
int _x, _y, _width, _height;
TString _prompt;
virtual void print_on(ostream& out) const;
virtual void print_body(ostream& out) const;
int width() const { return _width; }
int height() const { return _height; }
bool shown() const { return _flag.shown; }
bool hidden() const { return !_flag.shown; }
bool enabled() const { return _flag.enabled; }
bool disabled() const { return !_flag.enabled; }
bool automagic() const { return !_flag.automagic; }
virtual bool parse_head(TScanner&);
virtual bool parse_item(TScanner&);
virtual const char* get() const { return _prompt; }
virtual bool set(const char* s) { _prompt = s; return TRUE; }
TToken_string& message(int m = 0);
void send_message(const TString& cmd, TForm_item& dest) const;
bool do_message(int m = 0);
void string_at(int x, int y, const char* s);
public:
virtual bool parse(TScanner&);
virtual bool update();
virtual void print_on(TMask& m);
virtual void read_from(const TMask& m);
bool edit(TMask& m);
TPrint_section* section() const { return _section; }
bool in_group(byte g) const { return g == 0 || _group[g]; }
const TString& key() const { return _desc; }
void print_on(TToken_string& row) const;
void show(bool on = TRUE) { _flag.shown = on; }
void hide() { show(FALSE); }
void enable(bool on = TRUE);
void disable() { enable(FALSE); }
TForm_item(TPrint_section* section);
virtual ~TForm_item() {}
};
TForm_item::TForm_item(TPrint_section* section)
: _section(section), _x(-1), _y(-1), _width(0), _height(0)
{}
bool TForm_item::parse_head(TScanner& scanner)
{
_width = scanner.integer();
if (_width) _height = scanner.integer();
return TRUE;
}
void TForm_item::print_on(ostream& out) const
{
out << class_name();
if (_width > 0)
{
out << ' ' << _width;
if (_height > 0)
out << ' ' << _height;
}
out << "\nBEGIN\n";
print_body(out);
out << "END\n" << endl;
}
void TForm_item::print_body(ostream& out) const
{
out << " KEY \"" << _desc << "\"\n";
if (_y >= 0)
out << " PROMPT " << _x << ' ' << _y << " \"" << _prompt << "\"\n";
if (_group.ones())
out << " GROUP " << _group << "\n";
out << _flag;
if (_message.items() == 1)
{
const char* m = (TToken_string&)_message[0];
out << " MESSAGE " << m << endl;
}
}
bool TForm_item::parse_item(TScanner& scanner)
{
if (scanner.key() == "PR")
{
_x = scanner.integer();
_y = scanner.integer();
_prompt = scanner.string();
return TRUE;
}
if (scanner.key() == "FL")
return _flag.update(scanner.string());
if (scanner.key() == "ME")
{
TFixed_string m(scanner.line());
m.strip_spaces();
message(0).add(m);
return TRUE;
}
if (scanner.key() == "KE")
{
_desc = scanner.string();
return TRUE;
}
if (scanner.key() == "GR")
{
_group.set(scanner.line());
return TRUE;
}
yesnofatal_box("Unknown symbol in item '%s': '%s'",
(const char*)key(), (const char*)scanner.token());
return FALSE;
}
bool TForm_item::parse(TScanner& scanner)
{
bool ok = parse_head(scanner);
if (ok && scanner.popkey() != "BE")
ok = yesnofatal_box("Missing BEGIN in form item %s", (const char*)key());
while (ok && scanner.popkey() != "EN")
ok = parse_item(scanner);
return ok;
}
void TForm_item::enable(bool on)
{
_flag.enabled = on;
show(on);
}
void TForm_item::string_at(int x, int y, const char* s)
{
if (hidden()) return;
_section->offset(x, y);
TPrintrow& row = _section->row(y-1); // Seleziona riga di stampa
if (_width > 0 && strlen(s) > (word)_width) // Tronca testo se necessario
{
strncpy(__tmp_string, s, width());
__tmp_string[width()] = '\0';
s = __tmp_string;
}
row.put(s, x-1); // Stampa testo
}
TToken_string& TForm_item::message(int m)
{
TToken_string* t = (TToken_string*)_message.objptr(m);
if (t == NULL)
{
t = new TToken_string(16);
_message.add(t, m);
}
return *t;
}
void TForm_item::send_message(const TString& cmd, TForm_item& des) const
{
if (cmd == "ADD" || cmd == "SUM" || cmd == "INC")
{
const real n((cmd[0] == 'I') ? "1.0" : get());
real r(des.get());
r += n;
des.set(r.string());
} else
if (cmd == "COPY")
{
des.set(get());
} else
if (cmd == "APPEND")
{
TString80 val = des.get();
if (val.not_empty()) val << ' ';
val << get();
des.set(val);
} else
if (cmd == "DISABLE")
{
des.disable();
} else
if (cmd == "ENABLE")
{
des.enable();
} else
if (cmd == "HIDE")
{
des.hide();
} else
if (cmd == "SHOW")
{
des.show();
} else
if (cmd == "RESET")
{
des.set("");
} else
if (cmd[0] == '"')
{
TString80 val(cmd);
val.strip("\"");
des.set(val);
} else
error_box("Unknown message in item '%s': '%s'",
(const char*)key(), (const char*)cmd);
}
bool TForm_item::do_message(int num)
{
TToken_string& messaggio = message(num);
if (messaggio.empty()) return FALSE;
TToken_string msg(16, ',');
for (const char* m = messaggio.get(0); m; m = messaggio.get())
{
msg = m;
const TString16 cmd = msg.get(); // Get command
const word id = msg.get_int(); // Get destination group
// Send the message to all fields with the given group
for (word i = 0; i < section()->fields(); i++)
{
TForm_item& des = section()->field(i);
if (des.in_group(id))
send_message(cmd, des);
}
}
return TRUE;
}
bool TForm_item::update()
{
string_at(_x, _y, _prompt);
do_message();
return TRUE;
}
void TForm_item::print_on(TToken_string& row) const
{
row = class_name();
row.add(_y);
row.add(_x);
const long fu = _group.first_one();
if (fu > 0) row.add(fu);
else row.add(" ");
row.add(key());
}
void TForm_item::print_on(TMask& m)
{
m.set(F_CLASS, class_name());
m.set(F_KEY, key());
m.set(F_X, _x);
m.set(F_Y, _y);
m.set(F_PROMPT, _prompt);
m.set(F_WIDTH, _width);
m.set(F_HEIGHT, _height);
_flag.print_on(m);
for (int g = 1; g <= 12; g++)
m.set(F_GROUP+g, _group[g] ? "X" : " ");
}
void TForm_item::read_from(const TMask& m)
{
_desc = m.get(F_KEY);
_x = atoi(m.get(F_X));
_y = atoi(m.get(F_Y));
_prompt = m.get(F_PROMPT);
_width = atoi(m.get(F_WIDTH));
_height = atoi(m.get(F_HEIGHT));
_flag.read_from(m);
_group.reset();
for (int g = 1; g <= 12; g++)
_group.set(g, m.get_bool(F_GROUP+g));
}
bool TForm_item::edit(TMask& m)
{
m.reset();
if (m.insert_mode()) m.enable(F_CLASS);
else print_on(m);
const bool dirty = (m.run() == K_ENTER) && m.dirty();
if (m.insert_mode()) m.disable(F_CLASS);
else if (dirty) read_from(m);
return dirty;
}
///////////////////////////////////////////////////////////
// TForm_string
///////////////////////////////////////////////////////////
class TForm_string : public TForm_item
{
TString _str, _picture;
TArray _field;
protected:
virtual const char* class_name() const { return "STRINGA"; }
virtual void print_body(ostream& out) const;
virtual void print_on(TMask& m);
virtual void read_from(const TMask& m);
virtual bool parse_item(TScanner&);
virtual bool read();
virtual bool update();
const char* get() const;
bool set(const char*);
const TString& picture() const { return _picture; }
TFieldref& field(int i) const { return (TFieldref&)_field[i]; }
void put_paragraph(const char* s);
public:
TForm_string(TPrint_section* section) : TForm_item(section) {}
virtual ~TForm_string() {}
};
bool TForm_string::parse_item(TScanner& scanner)
{
if (scanner.key() == "FI")
{
TFieldref* fr = new TFieldref(scanner.line(), 0);
_field.add(fr);
return TRUE;
}
if (scanner.key() == "PI")
{
_picture = scanner.string();
return TRUE;
}
return TForm_item::parse_item(scanner);
}
void TForm_string::print_body(ostream& out) const
{
TForm_item::print_body(out);
if (_picture.not_empty())
out << " PICTURE \"" << _picture << "\"" << endl;
for (int i = 0; i < _field.items(); i++)
out << " FIELD " << field(i) << endl;
}
void TForm_string::print_on(TMask& m)
{
TForm_item::print_on(m);
for (int i = 0; i < 2; i++) if (i < _field.items())
{
TString80 f;
f << field(i);
m.set(i == 0 ? F_FIELD : F_FIELD2, f);
}
m.set(F_PICTURE, _picture);
}
void TForm_string::read_from(const TMask& m)
{
TForm_item::read_from(m);
_picture = m.get(F_PICTURE);
for (int i = 0; i < 2; i++)
{
const TString& f = m.get(i == 0 ? F_FIELD : F_FIELD2);
if (f.not_empty())
_field.add(new TFieldref(f, 0), i);
else
_field.destroy(i);
}
}
bool TForm_string::set(const char* s)
{
_str = s;
if (width()) _str.cut(width());
return TRUE;
}
const char* TForm_string::get() const
{ return _str; }
bool TForm_string::read()
{
bool ok = TRUE;
if (enabled())
{
if (_field.items())
{
const char* s = "";
const TRelation* r = section()->form()->relation();
for (int i = 0; i < _field.items(); i++)
{
s = field(i).read(r);
if (*s) break;
}
set(s);
}
} else ok = FALSE;
return ok;
}
void TForm_string::put_paragraph(const char* s)
{
if (hidden()) return;
if (height() > 1)
{
TParagraph_string p(s, width());
int i = _prompt.not_empty() ? 1 : 0;
for (; (s = p.get()) != NULL && i < height(); i++)
string_at(_x, _y+i, s);
}
else string_at(-1, _y, s);
}
bool TForm_string::update()
{
if (read())
{
TForm_item::update();
if (_picture.not_empty())
{
TString80 p;
p.picture(_picture, get());
put_paragraph(p);
}
else
put_paragraph(get());
}
return TRUE;
}
///////////////////////////////////////////////////////////
// TForm_number
///////////////////////////////////////////////////////////
class TForm_number : public TForm_string
{
protected:
virtual const char* class_name() const { return "NUMERO"; }
virtual bool parse_head(TScanner& scanner);
virtual bool update();
int decimals() const { return _height; }
public:
TForm_number(TPrint_section* section) : TForm_string(section) {}
virtual ~TForm_number() {}
};
bool TForm_number::parse_head(TScanner& scanner)
{
_width = 0;
_height = scanner.integer();
return TRUE;
}
bool TForm_number::update()
{
if (read())
{
TForm_item::update();
const char* s = get();
real n(s);
n.round(decimals());
s = n.string(picture());
string_at(-1, _y, s);
}
return TRUE;
}
///////////////////////////////////////////////////////////
// TForm_date
///////////////////////////////////////////////////////////
class TForm_date : public TForm_string
{
protected:
virtual const char* class_name() const { return "DATA"; }
virtual bool read();
virtual bool set(const char*);
bool set(const TDate& d);
public:
TForm_date(TPrint_section* section);
virtual ~TForm_date() {}
};
TForm_date::TForm_date(TPrint_section* section)
: TForm_string(section)
{}
bool TForm_date::read()
{
bool ok = TForm_string::read();
if (ok && !get()[0] && automagic())
set(main_app().printer().getdate());
return ok;
}
bool TForm_date::set(const char* s)
{
const TDate d(s);
TForm_string::set(d.string((width() == 8) ? 2 : 4));
return TRUE;
}
bool TForm_date::set(const TDate& d)
{
TForm_string::set(d.string((width() == 8) ? 2 : 4));
return TRUE;
}
///////////////////////////////////////////////////////////
// TForm_list
///////////////////////////////////////////////////////////
class TForm_list : public TForm_string
{
TToken_string _codes;
TToken_string _values;
protected:
virtual const char* class_name() const { return "LISTA"; }
virtual bool parse_item(TScanner& scanner);
virtual void print_on(TMask& m);
virtual void read_from(const TMask& m);
virtual void print_body(ostream& out) const;
virtual bool update();
public:
TForm_list(TPrint_section* section);
virtual ~TForm_list() {}
};
TForm_list::TForm_list(TPrint_section* section)
: TForm_string(section)
{}
bool TForm_list::parse_item(TScanner& scanner)
{
if (scanner.key() == "IT")
{
TToken_string s(scanner.string());
_codes.add(s.get());
_values.add(s.get());
TString m(80);
while (scanner.popkey() == "ME")
{
m = scanner.line();
m.strip_spaces();
message(_values.items()-1).add(m);
}
scanner.push();
return TRUE;
}
return TForm_string::parse_item(scanner);
}
void TForm_list::print_on(TMask& m)
{
TForm_string::print_on(m);
TSheet_field& s = (TSheet_field&)m.field(F_ITEMS);
_codes.restart(); _values.restart();
for (int i = 0; i < _codes.items(); i++)
{
TToken_string& row = s.row(i);
row = _codes.get();
row.add(_values.get());
row.add(message(i));
}
s.force_update();
}
void TForm_list::read_from(const TMask& m)
{
TForm_string::read_from(m);
TSheet_field& s = (TSheet_field&)m.field(F_ITEMS);
_codes = _values = "";
for (int i = 0; i < s.items(); i++)
{
TToken_string& row = s.row(i);
_codes.add(row.get(0));
_values.add(row.get());
message(i) = row.get();
}
}
void TForm_list::print_body(ostream& out) const
{
TForm_string::print_body(out);
TToken_string& cod = (TToken_string&)_codes; // Trick to skip const
TToken_string& val = (TToken_string&)_values;
int i = 0;
TString c(cod.get(0));
TString v(val.get(0));
for (; c[0]; c = cod.get(), v = val.get(), i++)
{
out << " ITEM \"" << c;
if (v.not_empty()) out << '|' << v;
out << '"';
const char* m = ((TForm_list*)this)->message(i);
if (*m) out << " MESSAGE " << m;
out << endl;
}
}
bool TForm_list::update()
{
bool ok = TRUE;
if (!read()) return ok;
const TString& val =get();
int pos = _codes.get_pos(val);
if (pos < 0)
{
ok = yesno_box("Il campo '%s' non puo' valere '%s': continuare ugualmente",
(const char*)key(), (const char*)val);
set(_codes.get(pos = 0));
}
if (ok)
{
do_message(pos);
if (!hidden())
{
const char* c = _values.get(pos);
if (c == NULL) c = val;
if (c) string_at(_x, _y, c);
}
}
return ok;
}
///////////////////////////////////////////////////////////
// TForm_group
///////////////////////////////////////////////////////////
class TForm_group : public TForm_item
{
protected:
virtual const char* class_name() const { return "GRUPPO"; }
virtual bool parse_head(TScanner&) { return TRUE; }
virtual bool update() { return TRUE; }
public:
TForm_group(TPrint_section* section) : TForm_item(section) {};
virtual ~TForm_group() {}
};
///////////////////////////////////////////////////////////
// TPrint_section
///////////////////////////////////////////////////////////
TMask* TPrint_section::_msk = NULL;
TPrint_section::TPrint_section(TForm* f) : _height(0), _form(f)
{}
TPrint_section::~TPrint_section()
{
if (_msk)
{
delete _msk;
_msk = NULL;
}
}
const TPrint_section& TPrint_section::copy(const TPrint_section& ps)
{
_item = ps._item;
_height = ps._height;
return ps;
}
TPrintrow& TPrint_section::row(int num)
{
TPrintrow* pr = (TPrintrow*)objptr(num);
if (!pr)
{
pr = new TPrintrow;
add(pr, num);
}
return *pr;
}
void TPrint_section::offset(int& x, int& y) const
{
if (x >= 0) x += _x;
if (y >= 0) y += _y;
}
TForm_item* TPrint_section::parse_item(const TString& s)
{
if (s == "ST")
return new TForm_string(this);
if (s == "NU")
return new TForm_number(this);
if (s == "DA")
return new TForm_date(this);
if (s == "LI")
return new TForm_list(this);
if (s == "GR")
return new TForm_group(this);
CHECKS(NULL, "Campo di stampa sconosciuto: ", (const char*)s);
return NULL;
}
TForm_item* TPrint_section::parse_item(TScanner& scanner)
{
return parse_item(scanner.key());
}
bool TPrint_section::parse(TScanner& scanner)
{
_height = scanner.integer();
_x = scanner.integer();
_y = scanner.integer();
while (scanner.popkey() != "EN")
{
TForm_item *fi = parse_item(scanner);
if (!fi) return FALSE;
if (fi->parse(scanner))
_item.add(fi);
else
return FALSE;
}
return TRUE;
}
void TPrint_section::reset()
{
for (word i = 0; i < height(); i++)
row(i).reset();
}
bool TPrint_section::update()
{
bool ok = TRUE;
reset();
for (word i = 0; i < fields(); i++)
{
const bool esito = field(i).update();
if (!esito) ok = FALSE;
}
#ifdef DBG
const int l = last()-1;
if (l >= (int)_height)
warning_box("Sezione troppo lunga: %d > %d", l+1, _height);
#endif
return ok;
}
bool TPrint_section::edit(const char* title)
{
TMask m("ba2100s");
m.set_caption(title);
m.set(F_HEIGHT, _height);
m.set(F_X, _x);
m.set(F_Y, _y);
if (m.run() == K_ESC)
return FALSE;
bool dirty = m.dirty() != 0;
if (dirty)
{
_height = m.get_int(F_HEIGHT);
_x = m.get_int(F_X);
_y = m.get_int(F_Y);
}
TArray_sheet a(-1, -1, 0, 0, title, "Tipo@8|Riga|Col.|Gr.|Descrizione@40", 0xE);
for (word i = 0; i < fields(); i++)
{
TToken_string* s = new TToken_string(128);
field(i).print_on(*s);
a.add(s);
}
KEY k;
do
{
k = a.run();
i = (word)a.selected();
if (k == K_ENTER || k == K_INS && _msk == NULL)
_msk = new TMask("ba2100f");
switch(k)
{
case K_ENTER:
_msk->set_mode(MODE_MOD);
if (field(i).edit(*_msk))
{
field(i).print_on(a.row(i));
dirty = TRUE;
}
break;
case K_INS:
{
_msk->set_mode(MODE_INS);
TForm_string dummy(this);
if (dummy.edit(*_msk))
{
const TString& c = _msk->get(F_CLASS).left(2);
TForm_item* item = parse_item(c);
item->read_from(*_msk);
_item.insert(item, i);
TToken_string s(128); item->print_on(s);
a.insert(s, i);
dirty = TRUE;
}
}
break;
case K_DEL:
if (yesno_box("Confermare la cancellazione"))
{
_item.destroy(i, TRUE);
a.destroy(i);
dirty = TRUE;
}
break;
default:
break;
}
} while (k != K_ESC);
return dirty;
}
void TPrint_section::print_on(ostream& out) const
{
out << ' ' << _height << ' ' << _x << ' ' << _y << endl;
for(word i = 0; i < fields(); i++)
out << field(i);
}
///////////////////////////////////////////////////////////
// TForm
///////////////////////////////////////////////////////////
bool TForm::parse_use(TScanner& scanner)
{
const int logicnum = scanner.integer();
const char* tab = NULL;
if (logicnum > 0)
_relation = new TRelation(logicnum);
else
{
tab = scanner.pop();
_relation = new TRelation(tab);
}
int key = 1;
if (scanner.popkey() == "KE")
key = scanner.integer();
else
scanner.push();
_cursor = new TCursor(_relation, "", key);
return TRUE;
}
bool TForm::parse_join(TScanner& scanner)
{
TString16 j(scanner.pop()); // File or table
int to = 0;
if (scanner.popkey() == "TO") // TO keyword
{
const char* n = scanner.pop();
to = name2log(n);
}
else scanner.push();
int key = 1;
if (scanner.popkey() == "KE")
key = scanner.integer();
else scanner.push();
int alias = 0;
if (scanner.popkey() == "AL")
alias = scanner.integer();
else scanner.push();
TToken_string exp(80);
if (scanner.pop() == "INTO")
{
const char* r = scanner.pop();
while (strchr(r, '=') != NULL)
{
exp.add(r);
r = scanner.pop();
}
}
if (exp.empty())
yesnofatal_box("JOIN senza espressioni INTO");
scanner.push();
if (isdigit(j[0]))
_relation->add(atoi(j), exp, key, to, alias); // join file
else
_relation->add(j, exp, key, to, alias); // join table
return TRUE;
}
TPrint_section* TForm::exist(char s, pagetype t, bool create)
{
TArray* a = NULL;
switch (s)
{
case 'H':
a = &_head; break;
case 'F':
a = &_foot; break;
default:
a = &_body; break;
}
TPrint_section* sec = (TPrint_section*)a->objptr(t);
if (sec == NULL && create)
{
sec = new TPrint_section(this);
a->add(sec, t);
}
return sec;
}
TPrint_section& TForm::section(char s, word p)
{
pagetype pos = odd_page;
if (p == 0 && exist(s, last_page)) pos = last_page;
if (p == 1 && exist(s, first_page)) pos = first_page;
if (pos == 0 && (p & 0x1) == 0 && exist(s, even_page)) pos = even_page;
TPrint_section* sec = exist(s, pos, TRUE);
return *sec;
}
word TForm::set_header(word p, bool u)
{
TPrinter& printer = main_app().printer();
printer.resetheader();
TPrint_section& head = section('H', p);
if (u) head.update();
else
{
head.reset();
printer.headerlen(head.height());
}
for (word j = 0; j < head.height(); j++)
printer.setheaderline(j, head.row(j));
return head.height();
}
word TForm::set_body(word p, bool u)
{
TPrint_section& body = section('B', p);
if (u) body.update();
else body.reset();
if (u)
{
TPrinter& printer = main_app().printer();
for (word j = 0; j < body.height(); j++)
printer.print(body.row(j));
}
return body.height();
}
word TForm::set_footer(word p, bool u)
{
TPrinter& printer = main_app().printer();
printer.resetfooter();
TPrint_section& foot = section('F', p);
if (u) foot.update();
else
{
foot.reset();
printer.footerlen(foot.height());
}
for (word j = 0; j < foot.height(); j++)
printer.setfooterline(j, foot.row(j));
return foot.height();
}
void TForm::header_handler(TPrinter& p)
{
const word page = form().page(p);
form().set_header(page, TRUE);
form().set_footer(page, FALSE);
}
void TForm::footer_handler(TPrinter& p)
{
const word page = form().page(p);
form().set_footer(page, TRUE);
if (page)
form().set_header(page+1, FALSE);
}
word TForm::page(const TPrinter& p) const
{
return _lastpage ? 0 : p.getcurrentpage();
}
long TForm::records() const
{
const long r = _cursor ? _cursor->items() : 0;
return r;
}
// Stampa gli items dal from a to
// se to < 0 stampa fino alla fine del file
bool TForm::print(long from, long to)
{
_form = this; // Setta il form corrente
TPrinter& printer = main_app().printer(); // Setta handlers
printer.setheaderhandler(header_handler);
printer.setfooterhandler(footer_handler);
printer.formlen(height());
const bool was_open = printer.isopen();
_lastpage = FALSE; // non e' l'ultima pagina
if (!was_open && !printer.open())
return FALSE;
if (to < 0) to = records()-1;
bool ok = TRUE;
for (long i = from; i <= to && ok; i++)
{
if (from < 0) to = from;
else if (_cursor) *_cursor = i;
const word h = set_body(page(printer), FALSE);
if (h > printer.rows_left())
printer.formfeed();
set_body(page(printer), TRUE);
}
if (i > records())
{
if (exist('H', last_page) || exist('B', last_page) || exist('F', last_page))
{
_lastpage = TRUE;
set_header(0, TRUE);
set_body(0, TRUE);
printer.formfeed();
}
}
if (!was_open)
printer.close();
_form = NULL; // resetta handlers
printer.setheaderhandler(NULL);
printer.setfooterhandler(NULL);
return ok;
}
void TForm::print_section(ostream& out, char s) const
{
for (pagetype t = odd_page; t <= last_page; t = pagetype(t+1))
{
const TPrint_section* sec = ((TForm*)this)->exist(s, t);
if (sec && sec->ok())
{
const char* name = s == 'H' ? "HEADER" : (s == 'F' ? "FOOTER" : "BODY");
out << "SECTION " << name << ' ' << int(t);
out << *sec;
out << "END\n" << endl;
}
}
}
void TForm::print_on(ostream& out) const
{
main_app().begin_wait();
if (relation())
out << *relation() << endl;
print_section(out, 'H');
print_section(out, 'B');
print_section(out, 'F');
out << "END" << endl;
main_app().end_wait();
}
word TForm::height()
{
word h = 0;
if (_head.items())
h += section('H', 1).height();
if (_body.items())
h += section('B', 1).height();
if (_foot.items())
h += section('F', 1).height();
return h;
}
TForm::TForm(const char* name) : _name(name), _relation(NULL), _cursor(NULL)
{
main_app().begin_wait();
_name.ext("frm");
TScanner scanner(_name);
bool ok = TRUE;
if (scanner.popkey() == "US")
{
ok = parse_use(scanner);
while (ok && scanner.popkey() == "JO")
ok = parse_join(scanner);
}
while (ok)
{
scanner.popkey();
const char sec = toupper(scanner.key()[0]);
if (sec <= ' ' || sec == 'E')
break;
const pagetype p = (pagetype)scanner.integer();
TPrint_section* ps = exist(sec, p, TRUE);
ok = ps->parse(scanner);
}
main_app().end_wait();
}
TForm::~TForm()
{
if (_cursor)
{
delete _cursor;
delete _relation;
}
}