/// <summary>
/// Sorts current Zakaz by run from max to min
/// and makes all runs multiple of RUN_DELTA
/// </summary>
/// <returns>New sorted and normalized Zakaz object</returns>
public Zakaz NormalizeAndSort()
{
if (this.Count == 0)
{
return(new Zakaz());
}
Zakaz result = new Zakaz(from e in this orderby e.Run descending select e);
if (result.Count < 1)
{
return(result);
}
int nextRun = 0;
int currentRun = result[0].Run;
for (int i = 0; i < result.Count - 1; i++)
{
nextRun = result[i + 1].Run;
if (currentRun != nextRun && currentRun - nextRun <= Constants.RUN_DELTA)
{
this[i + 1].Run = currentRun;
}
currentRun = nextRun;
}
return(result);
}//end:NormalizeAndSort
public OutStats(Zakaz ets, int run, int overprintsSum, int etsOnSheetCount)
{
Ets = ets;
Run = run;
OverprintsSum = overprintsSum;
EtsOnSheetCount = etsOnSheetCount;
}
}//end:DecreaseRun
/// <summary>
/// Finds the run with the least remains for given ets
/// by trying every run from ets.MaxRun to 0.
/// </summary>
/// <param name="ets">Ets count cannot be > ETS_ON_SHEET</param>
/// <returns></returns>
protected static OutStats FindBestRun(Zakaz ets)
{
if (ets.Count > Constants.ETS_ON_SHEET)
{
throw new ArgumentException("FindBestRun cannot operate with so many ets.");
}
int currentRun = ets.MaxRun;
OutStats bestResult = GetStatsForRun(ets, currentRun); //Initialize bestResult
if (!bestResult.IsValid)
{
throw new Exception("FindBestRun: Invalid stats obtained for MaxRun. Internal logic error.");
}
const int STEP = 100;
currentRun -= STEP;
while (currentRun > 0)
{
OutStats result = GetStatsForRun(ets, currentRun);
if (result.IsValid && result < bestResult)
{
bestResult = result;
}
currentRun -= STEP;
}
return(bestResult);
}//end:FindBestRun
}//end:IsGcd
/// <summary>
/// Calculates statistics for given set of ets,
/// which would be printed with given run
/// </summary>
protected static OutStats GetStatsForRun(Zakaz ets, int run)
{
OutStats result = new OutStats();
result.Run = run;
foreach (Etyketka et in ets)
{
Etyketka tmpEt = new Etyketka(et);
if (et.Run > run)
{
tmpEt.CountOnSheet = et.Run / run; //ex. 7/3=2
int remainder = et.Run % run; //Get the remainder
if (remainder > 0) // "Round up" if there is some remainer
{
tmpEt.Overprint = run - remainder;
tmpEt.CountOnSheet++;
}
}
else
{
tmpEt.CountOnSheet = 1;
tmpEt.Overprint = run - et.Run;
}
if (tmpEt.Overprint < 0)
{
throw new ArithmeticException("GetStatsForRun: something is wrong, negative Overprints detected!");
}
result.Ets.Add(tmpEt);
result.EtsOnSheetCount += tmpEt.CountOnSheet;
result.OverprintsSum += tmpEt.Overprint;
} //foreach
return(result);
} //end:GetEtsOnSheetForRun
/// <summary>
/// Tries to process provided list of ets simply aligning them on the single sheet.
/// If it fails, Split would be called.
/// </summary>
public static StatsList FirstPass(Zakaz ets)
{
//Make given ets immutable
Zakaz _ets = new Zakaz(ets);
StatsList result;
// If number of ets > Constants.ETS_ON_SHEET apply Split
if (_ets.Count > Constants.ETS_ON_SHEET)
{
result = SplitFromMinToMax(_ets);
if (_ets.Count <= Constants.ETS_ON_SHEET * 2)
{
StatsList tmpResult = TwoPartsRebalancer(_ets);
if (tmpResult < result)
{
result = tmpResult;
}
}
return(result);
}
result = new StatsList()
{
DecreaseRun(_ets, GetMinValidRun(_ets))
};
return(result);
}//end:FirstPass
public static Zakaz LoadFile()
{
OpenFileDialog dlg = new OpenFileDialog();
dlg.DefaultExt = "txt";
dlg.Filter = "текстові файли (*.txt)|*.txt|всі файли (*.*)|*.*";
dlg.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
if (dlg.ShowDialog() == DialogResult.OK)
{
Zakaz result = new Zakaz();
StreamReader sr = new StreamReader(dlg.OpenFile(), Encoding.GetEncoding(1251));
int idCounter = 0;
while (!sr.EndOfStream)
{
idCounter++;
string ts = sr.ReadLine();
string rawRun;
string etName;
if (ts.Contains("\t") || ts.Contains(" "))
{
int delimeter = ts.LastIndexOf("\t");
if (delimeter < ts.LastIndexOf(" "))
{
delimeter = ts.LastIndexOf(" ");
}
rawRun = ts.Substring(delimeter);
etName = ts.Substring(0, delimeter);
}
else
{
rawRun = ts;
etName = "Et_" + ts;
}
int run = 0;
try
{ run = int.Parse(rawRun); }
catch (FormatException)
{
if (MessageBox.Show("Помилка у наданому текстовому файлі. Не можу прочитати наклад з текстового рядка: \n" +
ts + "\nПродовжити читання файлу?", "Помилка", MessageBoxButtons.OKCancel, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1)
== DialogResult.Cancel)
{
sr.Close();
return(null);
}
}
Etyketka et = new Etyketka(idCounter, etName, run);
result.Add(et);
}
sr.Close();
if (result.Count < 1)
{
return(null);
}
return(result);
}
return(null);
}
}//end:SplitFromMinToMax
/// <summary>
/// Determines minimum run for given Zakaz,
/// which produces valid OutStats
/// </summary>
/// <param name="ets">Given zakaz remains immutable</param>
/// <returns>Minimum valid run</returns>
protected static int GetMinValidRun(Zakaz ets)
{
// Obtain stats for minimum run
int run = ets.MinRun;
OutStats tmpStats = GetStatsForRun(ets, run);
while (!tmpStats.IsValid)
{
run += 100; //Increase the run and the EtsOnSheetCount being decreased
tmpStats = GetStatsForRun(ets, run);
}
return(run);
}//end:GetMinValidRun
}//end:FirstPass
/// <summary>
/// Splits ets list based on 'MagicNumbers' and processes produced sublists
/// </summary>
public static StatsList FindBestRunWithShifting(Zakaz ets)
{
//Given ets become immutable, because NormalizeAndSort() returns new object,
//and sorted from max to min by ryn
Zakaz _ets = ets.NormalizeAndSort();
//For small Zakaz just find the best run
if (_ets.Count <= Constants.ETS_ON_SHEET)
{
return(new StatsList()
{
FindBestRun(_ets)
});
}
StatsList result = new StatsList();
Zakaz tmpEts = new Zakaz();
List <int> magicNumbers = _ets.SplitMarkers;
for (int i = 0; i < _ets.Count; i++)
{
if (!magicNumbers.Contains(i))
{
tmpEts.Add(_ets[i]);
}
else
{
result.Add(FindBestRun(tmpEts));
tmpEts = new Zakaz()
{
_ets[i]
};
}
}//end:for
if (tmpEts.Count > 0 && tmpEts.Count <= Constants.ETS_ON_SHEET)
{
result.Add(FindBestRun(tmpEts));
}
else if (tmpEts.Count <= Constants.ETS_ON_SHEET * 2)
{
result.AddRange(TwoPartsRebalancer(tmpEts));
}
else if (tmpEts.Count > Constants.ETS_ON_SHEET * 2)
{
result.AddRange(SplitFromMinToMax(tmpEts));
}
return(result);
}//end:FindBestRunWithShifting
} //end:GetEtsOnSheetForRun
/// <summary>
/// Tries to decrease given run to maximize the fill of the sheet with given ets
/// </summary>
protected static OutStats DecreaseRun(Zakaz ets, int run)
{
//Get the etsOnSheetSum for the run
OutStats result = GetStatsForRun(ets, run);
if (!result.IsValid)
{
throw new ArithmeticException("DecreaseRun: EtsOnSheetCount sum bigger than ETS_ON_SHEET. That is nonesense!");
}
if (result.EtsOnSheetCount == Constants.ETS_ON_SHEET)
{
return(result);
}
//Try to increase the run for every single et and choose the best result
OutStats tmpStats = null;
int etCount;
foreach (Etyketka et in ets)
{
etCount = et.CountOnSheet;
do
{
etCount += 1;
//Fit the run so, that etsOnSheet count for the et increased by 1
//and get the stats for the newRun
tmpStats = GetStatsForRun(ets, et.Run / etCount);
//Choose the best result
if (tmpStats.IsValid && tmpStats < result)
{
result = tmpStats;
}
} while (tmpStats.IsValid);
}//foreach
//If something went wrong and all ets have some greater-than-zero overprint, fix that
int resultMinOverprint = (from e in result.Ets select e.Overprint).Min();
if (resultMinOverprint > 0)
{
return(GetStatsForRun(result.Ets, result.Run - resultMinOverprint));
}
else
{
return(result);
}
}//end:DecreaseRun
}//end:FindBestRunWithShifting
///<summary>
///Splits provided ets by GCD and applies FirstPass on each sublist.
///Collects OutStats from each FirstPass and returns them as single list.
///</summary>
public static StatsList SplitByGcd(Zakaz ets)
{
//ets.NormalizeAndSort();
Zakaz _ets = new Zakaz(ets);
_ets.Sort(new CompareEtsByRunMinToMax());
List <Zakaz> groups = new List <Zakaz>();
Zakaz garbageGroup = new Zakaz();
foreach (Zakaz group in SplitByGcdToGroups(_ets))
{
//Sort ets of current group from max to min run
group.Sort(new CompareEtsByRunMaxToMin());
//Split big groups to smaller ones
while (group.Count >= Constants.ETS_ON_SHEET)
{
groups.Add(new Zakaz(group.Take(Constants.ETS_ON_SHEET)));
group.RemoveRange(0, Constants.ETS_ON_SHEET);
}
//All groups of one et are merged into one 'garbage' group
if (group.Count < 2)
{
garbageGroup.AddRange(group);
}
else
{
groups.Add(group);
}
}
if (garbageGroup.Count > 0)
{
groups.Add(garbageGroup);
}
StatsList result = new StatsList();
foreach (Zakaz z in groups)
{
result.AddRange(FirstPass(z));
}
return(result);
}//end:SplitByGcd
}//end:GetMinValidRun
/// <summary>
/// Sorts given ets, splits them into two groups
/// and optimizes these groups via rebalancing them
/// </summary>
/// <param name="ets">Ets count has to be > 2 and < 2xETS_ON_SHEET</param>
protected static StatsList TwoPartsRebalancer(Zakaz ets)
{
//Ets count has to be > 2 and < 2xETS_ON_SHEET
if (ets.Count <= 2 || ets.Count >= Constants.ETS_ON_SHEET * 2)
{
throw new ArgumentOutOfRangeException();
}
//Make given ets immutable
Zakaz _ets = new Zakaz(ets);
StatsList result = new StatsList();
_ets.Sort(new CompareEtsByRunMinToMax());
//When we have _ets less than for two sheets,
//split them into two parts
//Take the first ETS_ON_SHEET ets to the first part
Zakaz part1 = new Zakaz(_ets.GetRange(0, Constants.ETS_ON_SHEET));
//Take all remained ets to the second part
Zakaz part2 = new Zakaz(_ets.GetRange(Constants.ETS_ON_SHEET,
_ets.Count - 1 - Constants.ETS_ON_SHEET));
//Calculate stats for both parts
result.Add(GetStatsForRun(part1, GetMinValidRun(part1)));
result.Add(GetStatsForRun(part2, GetMinValidRun(part2)));
//Try to rebalance Part1 and Part2 to obtain the best stats
StatsList tmpResult;
while (part2.Count < Constants.ETS_ON_SHEET)
{
part2.Add(part1[part1.Count - 1]);
part1.RemoveAt(part1.Count - 1);
tmpResult = new StatsList();
tmpResult.Add(GetStatsForRun(part1, GetMinValidRun(part1)));
tmpResult.Add(GetStatsForRun(part2, GetMinValidRun(part2)));
if (tmpResult < result)
{
result = tmpResult;
}
}//while
return(result);
}//end:PackIntoSheet
public OutStats()
{
Ets = new Zakaz();
}
}//end:PackIntoSheet
/// <summary>
/// Splits given ets to groups based on GCD.
/// </summary>
protected static List <Zakaz> SplitByGcdToGroups(Zakaz ets)
{
//Sort ets by run from max to min
ets.Sort(new CompareEtsByRunMaxToMin());
//Take every et and collect all other ets which runs are GCD of this et run
List <Zakaz> gcdGroups = new List <Zakaz>();
foreach (Etyketka et in ets)
{
Zakaz group = new Zakaz(from e in ets where IsGcd(et, e) select e);
if (group.Count > 0 && !gcdGroups.Contains(group))
{
gcdGroups.Add(group);
}
}
//Remove dublicated ets, so that result returned
//would have only one instance of each et
List <Zakaz> result = new List <Zakaz>();
Zakaz garbage = new Zakaz();
bool present; //Indicates if current et is already present in the result
//Take every group from gcdGroups sorted by number of ets from max to min
foreach (Zakaz group in (from z in gcdGroups orderby z.Count descending select z))
{
present = false;
foreach (Etyketka et in group)
{
foreach (Zakaz resultGroup in result)
{
//If current et is already in the result, then drop this group
if (resultGroup.Contains(et))
{
present = true;
goto FIN; //Exit from inner and outer for-loops
}
}
}
FIN:
if (!present)
{
//If all ets of current group are not present in the result,
//add this group to the result
result.Add(group);
}
else
{
//Add current group to garbage
foreach (Etyketka et in group)
{
if (!garbage.Contains(et))
{
garbage.Add(et);
}
}
} //else
} //foreach
if (garbage.Count > 0)
{
result.Add(garbage);
}
return(result);
}//end:SplitByGcdToGroups
}//end:FindBestRun
///<summary>
///Splits provided list of ets and applies FirstPass on each sublist.
///Collects OutStats from each FirstPass and returns them as single list.
///</summary>
protected static StatsList SplitFromMinToMax(Zakaz ets)
{
//Make given ets immutable
Zakaz _ets = new Zakaz(ets);
//Order ets by runs
_ets.Sort(new CompareEtsByRunMinToMax());
int runIncrement = 0;
StatsList TheBestResult = null;
Zakaz zakazForMinRun = null;
OutStats statsForMinRun = null;
do
{
//Split ets to groups with the sum count on the sheet <= Constants.ETS_ON_SHEET
//and build temporary stats list
statsForMinRun = GetStatsForRun(_ets, _ets.MinRun + runIncrement);
//For now statsForMinRun are not valid, but we don't bother,
//because we would split ets later
zakazForMinRun = statsForMinRun.Ets;
StatsList tmpResult = new StatsList();
Zakaz part1;
Zakaz part2;
do
{
part1 = new Zakaz();
part2 = new Zakaz();
int count = 0;
foreach (Etyketka et in zakazForMinRun)
{
if (count + et.CountOnSheet <= Constants.ETS_ON_SHEET)
{
//Select first ets group that fits at one sheet
part1.Add(et);
}
else
{
//Add all other ets to the second group
part2.Add(et);
}
count += et.CountOnSheet;
}//foreach
//Part1 is valid, as far as previous if-expression is true
OutStats os = GetStatsForRun(part1, part1.MinRun + runIncrement);
if (!os.IsValid)
{
if (TheBestResult != null)
{
return(TheBestResult);
}
else
{
throw new Exception("Invalid Algorithm!");
}
}
tmpResult.Add(os);
//For second group recalculating stats with its MinRun
if (part2.Count > 0)
{
statsForMinRun = GetStatsForRun(part2, part2.MinRun + runIncrement);
//For now statsForMinRun are not valid, but we don't bother,
//because we would split part2 in the next loop
zakazForMinRun = statsForMinRun.Ets;
}
} while (part2.Count > 0);
//Select the best result as the final result returned
if (TheBestResult == null)
{
TheBestResult = tmpResult;
}
if (TheBestResult > tmpResult)
{
TheBestResult = tmpResult;
}
runIncrement += 100;
} while (_ets.MinRun + runIncrement <= _ets.MaxRun);
return(TheBestResult);
}//end:SplitFromMinToMax