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inline void *operator new(size_t s) { return malloc(s); }
inline void operator delete(void *p) { free(p); }
class Record
{
public:
enum FieldsType { Nothing, X, Y, State, Detail, Window, Width, Height, Keysym, MAX_FIELD };
enum RecordType { WindowMove = 256, TargetWindow };
Record(unsigned _type, unsigned _time):
fields_present(0), type(_type), time(_time)
{
}
~Record() { }
unsigned get_type() const { return type; }
unsigned get_time() const { return time; }
bool has_field(FieldsType type) const { return ((fields_present >> type) & 1) != 0; }
unsigned get_field(FieldsType type) const {
if (!has_field(type)) {
fprintf(stderr, "record has no field %d\n", type);
exit(EXIT_FAILURE);
}
return fields[type];
}
unsigned get_field(FieldsType type, unsigned def) const {
if (!has_field(type))
return def;
return fields[type];
}
void set_field(FieldsType type, unsigned value) {
fields_present |= 1u << type;
fields[type] = value;
}
private:
unsigned type, time;
unsigned fields_present;
unsigned fields[MAX_FIELD];
};
class RecordsFile
{
protected:
RecordsFile(FILE *_f);
~RecordsFile() { fclose(f); }
enum { START_RECORD = 1, END_RECORD = 2, FIELD = 3 };
FILE *f;
};
class ReadRecordsFile: public RecordsFile
{
public:
ReadRecordsFile(const char *fn);
bool at_eof() const { return eof; }
Record get();
private:
unsigned get_number();
void get_number(unsigned num);
bool eof;
unsigned next;
};
class WriteRecordsFile: public RecordsFile
{
public:
WriteRecordsFile(const char *fn);
void put(const Record &rec);
private:
void add_number(unsigned num);
};
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