private void Divide(Size constraint, out int realChildCount, out int optimalDivides, out double optimalDivideSize)
{
realChildCount = optimalDivides = 0;
optimalDivideSize = 0;
foreach (UIElement child in InternalChildren)
{
if (child.Visibility != Visibility.Collapsed)
{
realChildCount++;
}
}
if (realChildCount == 0)
{
return;
}
IndexToSize indexToSize = new IndexToSize(_orientation);
double curOptimalDivideSize = 0;
int arrangeCount = 0;
int anotherDirDivideIndex = 0;
for (int divideIndex = 1; divideIndex <= realChildCount; divideIndex++)
{
arrangeCount = 0;
anotherDirDivideIndex = 0;
indexToSize.ResetMap();
for (int childIndex = 0; childIndex < InternalChildren.Count; childIndex++)
{
UIElement child = InternalChildren[childIndex];
if (child.Visibility == Visibility.Collapsed)
{
continue;
}
child.Measure(constraint);
indexToSize.UpdateDivideIndexToSizeMap(arrangeCount, child.DesiredSize);
indexToSize.UpdateAnotherDirDivideIndexToSizeMap(anotherDirDivideIndex, child.DesiredSize);
arrangeCount++;
if (arrangeCount == divideIndex)
{
curOptimalDivideSize = indexToSize.CurDivideOptimalSize;
if (!indexToSize.IsCurDivideOptimalSizeValid(curOptimalDivideSize, constraint))
{
break;
}
arrangeCount = 0;
anotherDirDivideIndex++;
}
}
curOptimalDivideSize = indexToSize.CurDivideOptimalSize;
if (indexToSize.IsCurDivideOptimalSizeValid(curOptimalDivideSize, constraint) && DoubleUtil.GreaterThanOrClose(curOptimalDivideSize, optimalDivideSize))
{
optimalDivideSize = curOptimalDivideSize;
optimalDivides = divideIndex;
_columnIndexToWidthMap = indexToSize.GetColumnIndexToWidthMap;
_rowIndexToHeightMap = indexToSize.GetRowIndexToHeightMap;
}
}
}
/// <summary>
/// Validate input value in RangeBase (Minimum, Maximum, and Value).
/// </summary>
/// <param name="value"></param>
/// <returns>Returns False if value is NaN or NegativeInfinity or PositiveInfinity. Otherwise, returns True.</returns>
private static bool IsValidDoubleValue(object value)
{
double d = (double)value;
return(!(DoubleUtil.IsNaN(d) || double.IsInfinity(d)));
}
public static double GetArrowSize([NotNull] System.Windows.Controls.MenuItem obj)
{
ValidationHelper.NotNull(obj, "obj");
DoubleUtil.EnsureNonNegative();
return(BoxingHelper <double> .Unbox(obj.GetValue(ArrowSizeProperty)));
}
private static bool IsWrapWidthValid(object value)
{
double v = (double)value;
return((DoubleUtil.IsNaN(v)) || (DoubleUtil.GreaterThanOrClose(v, 0d) && !Double.IsPositiveInfinity(v)));
}
/// <summary>
/// Method which checks if mouse move is sufficient to start the drag
/// </summary>
private static bool CheckStartColumnHeaderDrag(Point currentPos, Point originalPos)
{
return(DoubleUtil.GreaterThan(Math.Abs(currentPos.X - originalPos.X), SystemParameters.MinimumHorizontalDragDistance));
}
/// <summary>
/// Internal helper function to find out the ratio of the distance from hitpoint to lineVector
/// and the distance from lineVector to (lineVector+nextLine)
/// </summary>
/// <param name="linesVector">This is one edge of a polygonal node</param>
/// <param name="nextLine">The connection vector between the same edge on biginNode and ednNode</param>
/// <param name="hitPoint">a point</param>
/// <returns>the relative position of hitPoint</returns>
internal static double GetPositionBetweenLines(Vector linesVector, Vector nextLine, Vector hitPoint)
{
Vector nearestOnFirst = GetProjection(-hitPoint, linesVector - hitPoint);
hitPoint = nextLine - hitPoint;
Vector nearestOnSecond = GetProjection(hitPoint, hitPoint + linesVector);
Vector shortest = nearestOnFirst - nearestOnSecond;
System.Diagnostics.Debug.Assert((false == DoubleUtil.IsZero(shortest.X)) || (false == DoubleUtil.IsZero(shortest.Y)));
//return DoubleUtil.IsZero(shortest.X) ? (nearestOnFirst.Y / shortest.Y) : (nearestOnFirst.X / shortest.X);
return(Math.Sqrt(nearestOnFirst.LengthSquared / shortest.LengthSquared));
}
// Token: 0x06005F4C RID: 24396 RVA: 0x001AB894 File Offset: 0x001A9A94
private static bool IsValidDoubleValue(object value)
{
double num = (double)value;
return(!DoubleUtil.IsNaN(num) && !double.IsInfinity(num));
}
public double Execute(InteractiveSeries deltaProfile, IOptionSeries optSer, int barNum)
{
List <double> positionDeltas = m_context.LoadObject(VariableId + "positionDeltas") as List <double>;
if (positionDeltas == null)
{
positionDeltas = new List <double>();
m_context.StoreObject(VariableId + "positionDeltas", positionDeltas);
}
int len = m_context.BarsCount;
if (len <= barNum)
{
string msg = String.Format("[{0}] (BarsCount <= barNum)! BarsCount:{1}; barNum:{2}",
GetType().Name, m_context.BarsCount, barNum);
m_context.Log(msg, MessageType.Info, true);
}
for (int j = positionDeltas.Count; j < Math.Max(len, barNum + 1); j++)
{
positionDeltas.Add(Constants.NaN);
}
{
int barsCount = m_context.BarsCount;
if (!m_context.IsLastBarUsed)
{
barsCount--;
}
if ((barNum < barsCount - 1) || (optSer == null))
{
return(positionDeltas[barNum]);
}
}
if (deltaProfile == null)
{
return(Constants.NaN);
}
SmileInfo deltaInfo = deltaProfile.GetTag <SmileInfo>();
if ((deltaInfo == null) || (deltaInfo.ContinuousFunction == null))
{
positionDeltas[barNum] = Double.NaN; // заполняю индекс barNumber
return(Constants.NaN);
}
int lastBarIndex = optSer.UnderlyingAsset.Bars.Count - 1;
DateTime now = optSer.UnderlyingAsset.Bars[Math.Min(barNum, lastBarIndex)].Date;
bool wasInitialized = HandlerInitializedToday(now);
double f = deltaInfo.F;
double dT = deltaInfo.dT;
if (!DoubleUtil.IsPositive(dT))
{
// [{0}] Time to expiry must be positive value. dT:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.TimeMustBePositive", GetType().Name, dT);
if (wasInitialized)
{
m_context.Log(msg, MessageType.Error, true);
}
return(Constants.NaN);
}
if (!DoubleUtil.IsPositive(f))
{
// [{0}] Base asset price must be positive value. F:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.FutPxMustBePositive", GetType().Name, f);
if (wasInitialized)
{
m_context.Log(msg, MessageType.Error, true);
}
return(Constants.NaN);
}
double rawDelta;
if (!deltaInfo.ContinuousFunction.TryGetValue(f, out rawDelta))
{
rawDelta = Constants.NaN;
}
positionDeltas[barNum] = rawDelta; // заполняю индекс barNumber
m_delta.Value = rawDelta;
if (PrintDeltaInLog)
{
m_context.Log(MsgId + ": " + m_delta.Value, MessageType.Info, PrintDeltaInLog);
}
if (m_hedgeDelta)
{
#region Hedge logic
try
{
int rounded = Math.Sign(rawDelta) * ((int)Math.Floor(Math.Abs(rawDelta)));
if (rounded == 0)
{
string msg = String.Format("[{0}] Delta is too low to hedge. Delta: {1}", MsgId, rawDelta);
m_context.Log(msg, MessageType.Info, true);
}
else
{
len = optSer.UnderlyingAsset.Bars.Count;
ISecurity sec = (from s in m_context.Runtime.Securities
where (s.Symbol == optSer.UnderlyingAsset.Symbol)
select s).SingleOrDefault();
if (sec == null)
{
string msg = String.Format("[{0}] There is no security. Symbol: {1}", MsgId, optSer.UnderlyingAsset.Symbol);
m_context.Log(msg, MessageType.Warning, true);
}
else
{
if (rounded < 0)
{
PositionsManager posMan = PositionsManager.GetManager(m_context);
string signalName = String.Format("\r\nDelta BUY\r\nF:{0}; dT:{1}; Delta:{2}\r\n", f, dT, rawDelta);
m_context.Log(signalName, MessageType.Warning, true);
posMan.BuyAtPrice(m_context, sec, Math.Abs(rounded), f, signalName, null);
}
else if (rounded > 0)
{
PositionsManager posMan = PositionsManager.GetManager(m_context);
string signalName = String.Format("\r\nDelta SELL\r\nF:{0}; dT:{1}; Delta:+{2}\r\n", f, dT, rawDelta);
m_context.Log(signalName, MessageType.Warning, true);
posMan.SellAtPrice(m_context, sec, Math.Abs(rounded), f, signalName, null);
}
}
}
}
finally
{
m_hedgeDelta = false;
}
#endregion Hedge logic
}
SetHandlerInitialized(now);
return(rawDelta);
}
public double Execute(double price, double time, InteractiveSeries smile, IOptionSeries optSer, int barNum)
{
int barsCount = m_context.BarsCount;
if (!m_context.IsLastBarUsed)
{
barsCount--;
}
if (barNum < barsCount - 1)
{
return(Constants.NaN);
}
if ((smile == null) || (optSer == null))
{
return(Constants.NaN);
}
int lastBarIndex = optSer.UnderlyingAsset.Bars.Count - 1;
DateTime now = optSer.UnderlyingAsset.Bars[Math.Min(barNum, lastBarIndex)].Date;
bool wasInitialized = HandlerInitializedToday(now);
double f = price;
double dT = time;
if (!DoubleUtil.IsPositive(dT))
{
// [{0}] Time to expiry must be positive value. dT:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.TimeMustBePositive", GetType().Name, dT);
if (wasInitialized)
{
m_context.Log(msg, MessageType.Error, false);
}
return(Constants.NaN);
}
if (!DoubleUtil.IsPositive(f))
{
// [{0}] Base asset price must be positive value. F:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.FutPxMustBePositive", GetType().Name, f);
if (wasInitialized)
{
m_context.Log(msg, MessageType.Error, false);
}
return(Constants.NaN);
}
double rawVega, res;
IOptionStrikePair[] pairs = optSer.GetStrikePairs().ToArray();
PositionsManager posMan = PositionsManager.GetManager(m_context);
if (SingleSeriesNumericalVega.TryEstimateVega(posMan, optSer, pairs, smile, m_greekAlgo, f, m_sigmaStep, dT, out rawVega))
{
// Переводим вегу в дифференциал 'изменение цены за 1% волы'.
rawVega /= Constants.PctMult;
res = rawVega;
}
else
{
res = Constants.NaN;
}
m_vega.Value = res;
//context.Log(String.Format("[{0}] Delta: {1}; rawDelta:{2}", MsgId, delta.Value, rawDelta), logColor, true);
SetHandlerInitialized(now);
return(res);
}
public double Execute(InteractiveSeries profile, int barNum)
{
// В данном случае намеренно возвращаю Double.NaN
double failRes = Double.NaN;
if (m_repeatLastValue)
{
failRes = Double.IsNaN(m_prevValue) ? Double.NaN : m_prevValue; // В данном случае намеренно возвращаю Double.NaN
}
Dictionary <DateTime, double> results;
#region Get cache
// [2019-01-30] Перевожу на использование NotClearableContainer (PROD-6683)
string key = m_variableId + "_results";
var container = m_context.LoadObject(key) as NotClearableContainer <Dictionary <DateTime, double> >;
if (container != null)
{
results = container.Content;
}
else
{
results = m_context.LoadObject(key) as Dictionary <DateTime, double>; // Старая ветка на всякий случай
}
if (results == null)
{
string msg = String.Format(RM.GetString("OptHandlerMsg.GetValueAtm.CacheNotFound"),
GetType().Name, key.GetHashCode());
m_context.Log(msg, MessageType.Info);
results = new Dictionary <DateTime, double>();
container = new NotClearableContainer <Dictionary <DateTime, double> >(results);
m_context.StoreObject(key, container);
}
#endregion Get cache
int len = m_context.BarsCount;
if (len <= 0)
{
return(failRes);
}
// Вот так не работает. По всей видимости, это прямая индексация от утра
//DateTime now = m_context.Runtime.GetBarTime(barNum);
ISecurity sec = m_context.Runtime.Securities.FirstOrDefault();
if ((sec == null) || (sec.Bars.Count <= barNum))
{
return(failRes);
}
DateTime now = sec.Bars[barNum].Date;
double rawRes;
if (results.TryGetValue(now, out rawRes))
{
m_prevValue = rawRes;
return(rawRes);
}
else
{
int barsCount = ContextBarsCount;
if (barNum < barsCount - 1)
{
// Если история содержит осмысленное значение, то оно уже содержится в failRes
return(failRes);
}
else
{
#region Process last bar(s)
if (profile == null)
{
return(failRes);
}
SmileInfo profInfo = profile.GetTag <SmileInfo>();
if ((profInfo == null) || (profInfo.ContinuousFunction == null))
{
return(failRes);
}
double f = profInfo.F;
double dT = profInfo.dT;
if (Double.IsNaN(f) || (f < Double.Epsilon))
{
string msg = String.Format(RM.GetString("OptHandlerMsg.FutPxMustBePositive"), GetType().Name, f);
m_context.Log(msg, MessageType.Error);
return(failRes);
}
if (!DoubleUtil.IsZero(m_moneyness))
{
if (Double.IsNaN(dT) || (dT < Double.Epsilon))
{
string msg = String.Format(RM.GetString("OptHandlerMsg.TimeMustBePositive"), GetType().Name, dT);
m_context.Log(msg, MessageType.Error);
return(failRes);
}
}
double effectiveF;
if (DoubleUtil.IsZero(m_moneyness))
{
effectiveF = f;
}
else
{
effectiveF = f * Math.Exp(m_moneyness * Math.Sqrt(profInfo.dT));
}
if (profInfo.ContinuousFunction.TryGetValue(effectiveF, out rawRes))
{
m_prevValue = rawRes;
results[now] = rawRes;
}
else
{
rawRes = failRes;
}
#endregion Process last bar(s)
m_result.Value = rawRes;
m_context.Log(MsgId + ": " + m_result.Value, MessageType.Info, PrintInLog);
return(rawRes);
}
}
}
/// <summary>
/// Метод под флаг TemplateTypes.OPTION_SERIES, чтобы подключаться к источнику-серии
/// </summary>
public IList <double> Execute(IOptionSeries optSer)
{
List <double> res = m_context.LoadObject(VariableId + "Prices") as List <double>;
if (res == null)
{
res = new List <double>();
m_context.StoreObject(VariableId + "Prices", res);
}
int oldCount = res.Count;
int len = m_context.BarsCount;
for (int j = oldCount; j < len; j++)
{
res.Add(Constants.NaN);
}
IOptionStrikePair pair = (from p in optSer.GetStrikePairs()
where DoubleUtil.AreClose(p.Strike, m_strike)
select p).FirstOrDefault();
if (pair == null)
{
return(res);
}
var putBars = pair.Put.Security.Bars;
var callBars = pair.Call.Security.Bars;
//if ((putBars.Count <= 0) || (callBars.Count <= 0))
// return res;
ISecurity sec = optSer.UnderlyingAsset;
// кеширование
for (int j = oldCount; j < len; j++)
{
int putIndex = Math.Min(putBars.Count - 1, j);
int callIndex = Math.Min(callBars.Count - 1, j);
if ((putIndex >= 0) && (callIndex >= 0) &&
(putBars[putIndex] is IBar) && (callBars[callIndex] is IBar))
{
double putPx = ((IBar)putBars[j]).TheoreticalPrice;
double callPx = ((IBar)callBars[j]).TheoreticalPrice;
double px = callPx - putPx + pair.Strike;
res.Add(px);
}
else
{
res.Add(Constants.NaN);
}
}
// актуализирую текущее значение
if ((len > 0) &&
pair.PutFinInfo.TheoreticalPrice.HasValue && pair.CallFinInfo.TheoreticalPrice.HasValue)
{
double putPx = pair.PutFinInfo.TheoreticalPrice.Value;
double callPx = pair.CallFinInfo.TheoreticalPrice.Value;
double px = callPx - putPx + pair.Strike;
res[res.Count - 1] = px;
}
return(res);
}
/// <summary>
/// Основной метод, который выполняет всю торговую логику по котированию и следит за риском
/// </summary>
protected double Process(double entryPermission,
double strike, double risk, double maxRisk, InteractiveSeries smile, IOptionSeries optSer,
double callRisk, double putRisk, int barNum)
{
int barsCount = m_context.BarsCount;
if (!m_context.IsLastBarUsed)
{
barsCount--;
}
if ((barNum < barsCount - 1) || (optSer == null) || (smile == null))
{
return(Constants.NaN);
}
IOptionStrikePair pair;
if (!optSer.TryGetStrikePair(strike, out pair))
{
return(Constants.NaN);
}
// Если риск не был измерен говорить вообще не о чем!
if (Double.IsNaN(risk))
{
return(Constants.NaN);
}
// Если риск разумен и условие входа НЕ ВЫПОЛНЕНО -- отдыхаем.
// А вот если риск превышен -- тогда по идее надо бы его подсократить!
if ((risk < maxRisk) && (entryPermission <= 0))
{
return(Constants.NaN);
}
PositionsManager posMan = PositionsManager.GetManager(m_context);
if (posMan.BlockTrading)
{
//string msg = String.Format("Trading is blocked. Please, change 'Block Trading' parameter.");
//m_context.Log(msg, MessageType.Info, true);
return(Constants.NaN);
}
SmileInfo sInfo = smile.GetTag <SmileInfo>();
if ((sInfo == null) || (sInfo.ContinuousFunction == null))
{
return(Constants.NaN);
}
double dT = sInfo.dT;
double futPx = sInfo.F;
// Набираем риск
if (risk < maxRisk)
{
double ivAtm;
if ((!sInfo.ContinuousFunction.TryGetValue(strike, out ivAtm)) || Double.IsNaN(ivAtm) || (ivAtm < Double.Epsilon))
{
string msg = String.Format("Unable to get IV at strike {0}. ivAtm:{1}", strike, ivAtm);
m_context.Log(msg, MessageType.Error, true);
return(Constants.NaN);
}
double theorPutPx = FinMath.GetOptionPrice(futPx, strike, dT, ivAtm, 0, false);
double theorCallPx = FinMath.GetOptionPrice(futPx, strike, dT, ivAtm, 0, true);
#region Набираем риск
double putPx, callPx;
{
double putQty, callQty;
DateTime putTime, callTime;
putPx = IvSmile.GetOptPrice(m_context, futPx, pair.Put, OptionPxMode.Ask, 0, 0, out putQty, out putTime);
callPx = IvSmile.GetOptPrice(m_context, futPx, pair.Call, OptionPxMode.Ask, 0, 0, out callQty, out callTime);
}
if (m_optionType == StrikeType.Put)
{
#region В путах
ISecurity sec = pair.Put.Security;
double qty = Math.Abs(m_fixedQty);
qty = GetSafeQty(risk, maxRisk, qty, putRisk);
if (qty > 0)
{
double px = SellOptions.SafeMinPrice(theorPutPx + m_entryShift * sec.Tick, putPx, sec);
double iv = FinMath.GetOptionSigma(futPx, pair.Strike, dT, px, 0, false);
string sigName = String.Format("Risk:{0}; MaxRisk:{1}; Px:{2}; Qty:{3}; IV:{4:P2}; dT:{5}", risk, maxRisk, px, qty, iv, dT);
posMan.BuyAtPrice(m_context, sec, qty, px, "Open BUY", sigName);
m_context.Log(sigName, MessageType.Debug, false);
}
#endregion В путах
}
else if (m_optionType == StrikeType.Call)
{
#region В колах
ISecurity sec = pair.Call.Security;
double qty = Math.Abs(m_fixedQty);
qty = GetSafeQty(risk, maxRisk, qty, callRisk);
if (qty > 0)
{
double px = SellOptions.SafeMinPrice(theorCallPx + m_entryShift * sec.Tick, callPx, sec);
double iv = FinMath.GetOptionSigma(futPx, pair.Strike, dT, px, 0, true);
string sigName = String.Format("Risk:{0}; MaxRisk:{1}; Px:{2}; Qty:{3}; IV:{4:P2}; dT:{5}", risk, maxRisk, px, qty, iv, dT);
posMan.BuyAtPrice(m_context, sec, qty, px, "Open BUY", sigName);
m_context.Log(sigName, MessageType.Debug, false);
}
#endregion В колах
}
else
{
#region В оба вида опционов сразу встаю
int executedQty = 0;
{
ISecurity sec = pair.Put.Security;
double px = SellOptions.SafeMinPrice(theorPutPx + m_entryShift * sec.Tick, putPx, sec);
double iv = FinMath.GetOptionSigma(futPx, pair.Strike, dT, px, 0, false);
double qty = Math.Max(1, Math.Abs(m_fixedQty / 2));
qty = GetSafeQty(risk, maxRisk, qty, putRisk);
if (qty > 0)
{
string sigName = String.Format("Risk:{0}; MaxRisk:{1}; Px:{2}; Qty:{3}; IV:{4:P2}; dT:{5}", risk, maxRisk, px, qty, iv, dT);
posMan.BuyAtPrice(m_context, sec, qty, px, "Open BUY", sigName);
m_context.Log(sigName, MessageType.Debug, false);
executedQty += (int)qty;
}
}
if (Math.Abs(executedQty) < Math.Abs(m_fixedQty))
{
ISecurity sec = pair.Call.Security;
double px = SellOptions.SafeMinPrice(theorCallPx + m_entryShift * sec.Tick, callPx, sec);
double iv = FinMath.GetOptionSigma(futPx, pair.Strike, dT, px, 0, true);
double qty = Math.Abs(m_fixedQty) - Math.Abs(executedQty);
// Делаю оценку изменения текущего риска, если нам зафилят заявку в путах
qty = GetSafeQty(risk + Math.Abs(executedQty) * putRisk, maxRisk, qty, callRisk);
if (qty > 0)
{
string sigName = String.Format("Risk:{0}; MaxRisk:{1}; Px:{2}; Qty:{3}; IV:{4:P2}; dT:{5}", risk, maxRisk, px, qty, iv, dT);
posMan.BuyAtPrice(m_context, sec, qty, px, "Open BUY", sigName);
m_context.Log(sigName, MessageType.Debug, false);
//executedQty += (int)qty;
}
}
#endregion В оба вида опционов сразу встаю
}
#endregion Набираем риск
}
else if (risk > maxRisk)
{
string msg;
//string msg = String.Format("[DEBUG:{0}] risk:{1}; maxRisk:{2}", Context.Runtime.TradeName, risk, maxRisk);
//m_context.Log(msg, MessageType.Debug, true);
// Надо взять пары, начиная от центральной и далее по возрастанию расстояния
var orderedPairs = (from p in optSer.GetStrikePairs()
orderby Math.Abs(p.Strike - strike) ascending
select p).ToArray();
if (orderedPairs.Length > 0)
{
foreach (IOptionStrikePair candidPair in orderedPairs)
{
#region Проверяю, что в страйке есть ДЛИННАЯ позиция
double putOpenQty = posMan.GetTotalQty(candidPair.Put.Security, barNum);
double callOpenQty = posMan.GetTotalQty(candidPair.Call.Security, barNum);
if ((putOpenQty <= 0) && (callOpenQty <= 0))
{
continue;
}
if (DoubleUtil.IsZero(putOpenQty) && DoubleUtil.IsZero(callOpenQty))
{
continue;
}
{
msg = String.Format("[DEBUG:{0}] putOpenQty:{1}; callOpenQty:{2}", Context.Runtime.TradeName, putOpenQty, callOpenQty);
m_context.Log(msg, MessageType.Debug, true);
}
#endregion Проверяю, что в страйке есть ДЛИННАЯ позиция
double theorPutPx, theorCallPx;
{
double iv;
if ((!sInfo.ContinuousFunction.TryGetValue(candidPair.Strike, out iv)) || Double.IsNaN(iv) ||
(iv < Double.Epsilon))
{
msg = String.Format("Unable to get IV at strike {0}. IV:{1}", candidPair.Strike, iv);
m_context.Log(msg, MessageType.Error, true);
continue;
}
theorPutPx = FinMath.GetOptionPrice(futPx, candidPair.Strike, dT, iv, 0, false);
theorCallPx = FinMath.GetOptionPrice(futPx, candidPair.Strike, dT, iv, 0, true);
}
#region Сдаём риск (один квант объёма за раз)
double putPx, callPx;
{
double putQty, callQty;
DateTime putTime, callTime;
putPx = IvSmile.GetOptPrice(m_context, futPx, candidPair.Put, OptionPxMode.Bid, 0, 0, out putQty, out putTime);
callPx = IvSmile.GetOptPrice(m_context, futPx, candidPair.Call, OptionPxMode.Bid, 0, 0, out callQty, out callTime);
}
if (m_optionType == StrikeType.Put)
{
#region В путах
if (putOpenQty > 0) // Это означает, что в страйке есть длинные путы
{
ISecurity sec = candidPair.Put.Security;
double px = SellOptions.SafeMaxPrice(theorPutPx + m_exitShift * sec.Tick, putPx, sec);
double iv = FinMath.GetOptionSigma(futPx, candidPair.Strike, dT, px, 0, false);
double qty = Math.Min(Math.Abs(m_fixedQty), Math.Abs(putOpenQty));
string sigName = String.Format("Risk:{0}; MaxRisk:{1}; Px:{2}; Qty:{3}; IV:{4:P2}; dT:{5}", risk, maxRisk, px, qty, iv, dT);
posMan.SellAtPrice(m_context, sec, qty, px, "Close SELL", sigName);
m_context.Log(sigName, MessageType.Debug, false);
// Выход из foreach (IOptionStrikePair candidPair in orderedPairs)
break;
}
#endregion В путах
}
else if (m_optionType == StrikeType.Call)
{
#region В колах
if (callOpenQty > 0) // Это означает, что в страйке есть длинные колы
{
ISecurity sec = candidPair.Call.Security;
double px = SellOptions.SafeMaxPrice(theorCallPx + m_exitShift * sec.Tick, callPx, sec);
double iv = FinMath.GetOptionSigma(futPx, candidPair.Strike, dT, px, 0, true);
double qty = Math.Min(Math.Abs(m_fixedQty), Math.Abs(callOpenQty));
string sigName = String.Format("Risk:{0}; MaxRisk:{1}; Px:{2}; Qty:{3}; IV:{4:P2}; dT:{5}", risk, maxRisk, px, qty, iv, dT);
posMan.SellAtPrice(m_context, sec, qty, px, "Close SELL", sigName);
m_context.Log(sigName, MessageType.Debug, false);
// Выход из foreach (IOptionStrikePair candidPair in orderedPairs)
break;
}
#endregion В колах
}
else
{
#region В оба вида опционов сразу встаю
int executedQty = 0;
if (putOpenQty > 0) // Это означает, что в страйке есть длинные путы
{
ISecurity sec = candidPair.Put.Security;
double px = SellOptions.SafeMaxPrice(theorPutPx + m_exitShift * sec.Tick, putPx, sec);
double iv = FinMath.GetOptionSigma(futPx, candidPair.Strike, dT, px, 0, false);
double qty = Math.Min(Math.Abs(m_fixedQty), Math.Abs(putOpenQty));
string sigName = String.Format("Risk:{0}; MaxRisk:{1}; Px:{2}; Qty:{3}; IV:{4:P2}; dT:{5}", risk, maxRisk, px, qty, iv, dT);
posMan.SellAtPrice(m_context, sec, qty, px, "Close SELL", sigName);
m_context.Log(sigName, MessageType.Debug, false);
executedQty += (int)qty;
}
if ((callOpenQty > 0) && // Это означает, что в страйке есть длинные колы
(Math.Abs(executedQty) < Math.Abs(m_fixedQty)))
{
ISecurity sec = candidPair.Call.Security;
double px = SellOptions.SafeMaxPrice(theorCallPx + m_exitShift * sec.Tick, callPx, sec);
double iv = FinMath.GetOptionSigma(futPx, candidPair.Strike, dT, px, 0, true);
double qty = Math.Min(Math.Abs(m_fixedQty) - Math.Abs(executedQty), Math.Abs(callOpenQty));
string sigName = String.Format("Risk:{0}; MaxRisk:{1}; Px:{2}; Qty:{3}; IV:{4:P2}; dT:{5}", risk, maxRisk, px, qty, iv, dT);
posMan.SellAtPrice(m_context, sec, qty, px, "Close SELL", sigName);
m_context.Log(sigName, MessageType.Debug, false);
executedQty += (int)qty;
}
if (executedQty > 0)
{
// Выход из foreach (IOptionStrikePair candidPair in orderedPairs)
break;
}
#endregion В оба вида опционов сразу встаю
}
#endregion Сдаём риск (один квант объёма за раз)
}
}
else
{
msg = String.Format("[DEBUG:{0}] risk:{1}; maxRisk:{2}; orderedPairs.Length:{3}",
Context.Runtime.TradeName, risk, maxRisk, orderedPairs.Length);
m_context.Log(msg, MessageType.Warning, true);
}
}
return(Constants.NaN);
}
/// <summary>
/// Обработчик под тип входных данных OPTION_SERIES
/// </summary>
public InteractiveSeries Execute(IOptionSeries optSer, IList <double> rates)
{
InteractiveSeries res = m_context.LoadObject(VariableId + "theorSmile") as InteractiveSeries;
if (res == null)
{
res = new InteractiveSeries(); // Здесь так надо -- мы делаем новую улыбку
m_context.StoreObject(VariableId + "theorSmile", res);
}
if (optSer == null)
{
return(res);
}
int len = optSer.UnderlyingAsset.Bars.Count;
if (len <= 0)
{
return(res);
}
FinInfo bSecFinInfo = optSer.UnderlyingAsset.FinInfo;
if (!bSecFinInfo.LastPrice.HasValue)
{
return(res);
}
if (rates.Count <= 0)
{
//throw new ScriptException("There should be some values in second argument 'rates'.");
return(res);
}
//IDataBar bar = optSer.UnderlyingAsset.Bars[len - 1];
double futPx = bSecFinInfo.LastPrice.Value;
// ФОРТС использует плоское календарное время
DateTime optExpiry = optSer.ExpirationDate.Date.Add(m_expiryTime);
double dT = (optExpiry - bSecFinInfo.LastUpdate).TotalYears();
double ratePct = rates[rates.Count - 1];
if (Double.IsNaN(dT) || (dT < Double.Epsilon))
{
// [{0}] Time to expiry must be positive value. dT:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.TimeMustBePositive", GetType().Name, dT);
m_context.Log(msg, MessageType.Error, true);
return(res);
}
if (Double.IsNaN(futPx) || (futPx < Double.Epsilon))
{
// [{0}] Base asset price must be positive value. F:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.FutPxMustBePositive", GetType().Name, futPx);
m_context.Log(msg, MessageType.Error, true);
return(res);
}
if (Double.IsNaN(ratePct))
{
//throw new ScriptException("Argument 'rate' contains NaN for some strange reason. rate:" + rate);
return(res);
}
// TODO: переписаться на обновление старых значений
//res.ControlPoints.Clear();
List <InteractiveObject> controlPoints = new List <InteractiveObject>();
List <double> xs = new List <double>();
List <double> ys = new List <double>();
IOptionStrikePair[] pairs = (from pair in optSer.GetStrikePairs()
//orderby pair.Strike ascending -- уже отсортировано!
select pair).ToArray();
for (int j = 0; j < pairs.Length; j++)
{
bool showPoint = true;
IOptionStrikePair sInfo = pairs[j];
double k = sInfo.Strike;
//// Сверхдалекие страйки игнорируем
//if ((sInfo.Strike < m_minStrike) || (m_maxStrike < sInfo.Strike))
//{
// showPoint = false;
//}
if ((sInfo.PutFinInfo == null) || (sInfo.CallFinInfo == null) ||
(!sInfo.PutFinInfo.TheoreticalPrice.HasValue) || (!sInfo.PutFinInfo.Volatility.HasValue) ||
(sInfo.PutFinInfo.TheoreticalPrice.Value <= 0) || (sInfo.PutFinInfo.Volatility.Value <= 0) ||
(!sInfo.CallFinInfo.TheoreticalPrice.HasValue) || (!sInfo.CallFinInfo.Volatility.HasValue) ||
(sInfo.CallFinInfo.TheoreticalPrice.Value <= 0) || (sInfo.CallFinInfo.Volatility.Value <= 0))
{
continue;
}
double prec;
// Биржа шлет несогласованную улыбку
//double virtualExchangeF = sInfo.CallFinInfo.TheoreticalPrice.Value - sInfo.PutFinInfo.TheoreticalPrice.Value + sInfo.Strike;
if ((m_optionType == StrikeType.Any) || (m_optionType == StrikeType.Put))
{
double optSigma = sInfo.PutFinInfo.Volatility.Value;
if ((!DoubleUtil.IsOne(m_multPx)) || (!DoubleUtil.IsZero(m_shiftPx)))
{
double optPx = sInfo.PutFinInfo.TheoreticalPrice.Value * m_multPx + m_shiftPx * sInfo.Tick;
if ((optPx <= 0) || (Double.IsNaN(optPx)))
{
optSigma = 0;
}
else
{
optSigma = FinMath.GetOptionSigma(futPx, k, dT, optPx, ratePct, false, out prec);
}
}
double vol = optSigma;
// ReSharper disable once UseObjectOrCollectionInitializer
InteractivePointActive ip = new InteractivePointActive(k, vol);
ip.Geometry = Geometries.Ellipse;
ip.Color = AlphaColors.Cyan;
ip.Tooltip = String.Format("K:{0}; IV:{1:0.00}", k, Constants.PctMult * optSigma);
if (showPoint && (vol > 0))
{
controlPoints.Add(new InteractiveObject(ip));
}
if ((xs.Count <= 0) ||
(!DoubleUtil.AreClose(k, xs[xs.Count - 1])))
{
xs.Add(k);
ys.Add(vol);
}
}
if ((m_optionType == StrikeType.Any) || (m_optionType == StrikeType.Call))
{
double optSigma = sInfo.CallFinInfo.Volatility.Value;
if ((!DoubleUtil.IsOne(m_multPx)) || (!DoubleUtil.IsZero(m_shiftPx)))
{
double optPx = sInfo.CallFinInfo.TheoreticalPrice.Value * m_multPx + m_shiftPx * sInfo.Tick;
if ((optPx <= 0) || (Double.IsNaN(optPx)))
{
optSigma = 0;
}
else
{
optSigma = FinMath.GetOptionSigma(futPx, k, dT, optPx, ratePct, true, out prec);
}
}
double vol = optSigma;
// ReSharper disable once UseObjectOrCollectionInitializer
InteractivePointActive ip = new InteractivePointActive(k, vol);
ip.Geometry = Geometries.Ellipse;
ip.Color = AlphaColors.DarkCyan;
ip.Tooltip = String.Format("K:{0}; IV:{1:0.00}", k, Constants.PctMult * optSigma);
if (showPoint && (vol > 0))
{
controlPoints.Add(new InteractiveObject(ip));
}
if ((xs.Count <= 0) ||
(!DoubleUtil.AreClose(k, xs[xs.Count - 1])))
{
xs.Add(k);
ys.Add(vol);
}
}
}
res.ControlPoints = new ReadOnlyCollection <InteractiveObject>(controlPoints);
var baseSec = optSer.UnderlyingAsset;
DateTime scriptTime = baseSec.Bars[baseSec.Bars.Count - 1].Date;
// ReSharper disable once UseObjectOrCollectionInitializer
SmileInfo info = new SmileInfo();
info.F = futPx;
info.dT = dT;
info.Expiry = optSer.ExpirationDate;
info.ScriptTime = scriptTime;
info.RiskFreeRate = ratePct;
info.BaseTicker = baseSec.Symbol;
try
{
if (xs.Count >= BaseCubicSpline.MinNumberOfNodes)
{
NotAKnotCubicSpline spline = new NotAKnotCubicSpline(xs, ys);
info.ContinuousFunction = spline;
info.ContinuousFunctionD1 = spline.DeriveD1();
res.Tag = info;
}
}
catch (Exception ex)
{
m_context.Log(ex.ToString(), MessageType.Error, true);
return(Constants.EmptySeries);
}
return(res);
}
private static bool IsInvalidDouble(double value)
{
return(Double.IsInfinity(value) ||
DoubleUtil.IsNaN(value));
}
static CompassHandleDrawing()
{
HandleDrawing.RadiusProperty.OverrideMetadata(typeof(CompassHandleDrawing), new PaintDotNet.UI.FrameworkPropertyMetadata(DoubleUtil.GetBoxed(6.5)));
}
private void MoveChild(UIElement dragedChild)
{
var screenPos = new Win32.POINT();
if (!Win32.GetCursorPos(ref screenPos))
{
return;
}
var posToPanel = AssociatedObject.PointFromScreen(new Point(screenPos.X, screenPos.Y));
var dragedElement = dragedChild as FrameworkElement;
var childRect = new Rect(posToPanel.X - _cacheMouseDownToChildPos.X, DisabledYPosition ? _cacheChildToPanelPos.Y : (posToPanel.Y - _cacheMouseDownToChildPos.Y), dragedElement.ActualWidth, dragedElement.ActualHeight);
//find the child which has max overlapping area with dragedChild
Size? maxOverlapSize = null;
FrameworkElement maxOverlapChild = null;
foreach (FrameworkElement fe in AssociatedObject.Children)
{
if (fe == dragedElement)
{
continue;
}
var sp = fe.TranslatePoint(new Point(), AssociatedObject);
var overlapSize = GetOverlapSize(new Rect(sp, new Point(sp.X + fe.ActualWidth, sp.Y + fe.ActualHeight)), childRect);
if (overlapSize.IsEmpty)
{
continue;
}
if (maxOverlapSize == null || DoubleUtil.GreaterThan(overlapSize.Width * overlapSize.Height, maxOverlapSize.Value.Width * maxOverlapSize.Value.Height))
{
maxOverlapSize = overlapSize;
maxOverlapChild = fe;
}
}
//check the overlapping area whether match the exchanging child condition
if (!maxOverlapSize.HasValue || maxOverlapSize.Value.IsEmpty)
{
return;
}
if (DoubleUtil.GreaterThanOrClose(maxOverlapSize.Value.Width, maxOverlapChild.ActualWidth / 2) && DoubleUtil.GreaterThanOrClose(maxOverlapSize.Value.Height, maxOverlapChild.ActualHeight / 2))
{
var targetIndex = AssociatedObject.Children.IndexOf(maxOverlapChild);
if (IsFromItemsPanelTemplate)
{
var sourceIndex = AssociatedObject.Children.IndexOf(dragedChild);
if (ItemsContainer.ItemsSource != null)
{
if (MoveItemFromItemsSource != null)
{
MoveItemFromItemsSource(sourceIndex, targetIndex);
//if use ObservableCollection.Move(...) to exchange position, follow code is unnecessary.
//else use ObservableCollection.RemoveAt(...) and ObservableCollection.Insert(...) to exchange position, follow code is necessary.
_dragedChild = AssociatedObject.Children[targetIndex];
_dragedChild.Opacity = 0;
}
}
else
{
var sourceItem = ItemsContainer.Items[sourceIndex];
ItemsContainer.Items.RemoveAt(sourceIndex);
ItemsContainer.Items.Insert(targetIndex, sourceItem);
_dragedChild = AssociatedObject.Children[targetIndex];
_dragedChild.Opacity = 0;
}
}
else
{
AssociatedObject.Children.Remove(dragedChild);
AssociatedObject.Children.Insert(targetIndex, dragedChild);
}
}
}
/// <summary>
/// Finds out where the segment [hitBegin, hitEnd]
/// is about the segment [orgBegin, orgEnd].
/// </summary>
internal static HitResult WhereIsSegmentAboutSegment(
Vector hitBegin, Vector hitEnd, Vector orgBegin, Vector orgEnd)
{
if (hitEnd == hitBegin)
{
return(WhereIsCircleAboutSegment(hitBegin, new Vector(0, 0), orgBegin, orgEnd));
}
//----------------------------------------------------------------------
// Source: http://isc.faqs.org/faqs/graphics/algorithms-faq/
// Subject 1.03: How do I find intersections of 2 2D line segments?
//
// Let A,B,C,D be 2-space position vectors. Then the directed line
// segments AB & CD are given by:
//
// AB=A+r(B-A), r in [0,1]
// CD=C+s(D-C), s in [0,1]
//
// If AB & CD intersect, then
//
// A+r(B-A)=C+s(D-C), or Ax+r(Bx-Ax)=Cx+s(Dx-Cx)
// Ay+r(By-Ay)=Cy+s(Dy-Cy) for some r,s in [0,1]
//
// Solving the above for r and s yields
//
// (Ay-Cy)(Dx-Cx)-(Ax-Cx)(Dy-Cy)
// r = ----------------------------- (eqn 1)
// (Bx-Ax)(Dy-Cy)-(By-Ay)(Dx-Cx)
//
// (Ay-Cy)(Bx-Ax)-(Ax-Cx)(By-Ay)
// s = ----------------------------- (eqn 2)
// (Bx-Ax)(Dy-Cy)-(By-Ay)(Dx-Cx)
//
// Let P be the position vector of the intersection point, then
//
// P=A+r(B-A) or Px=Ax+r(Bx-Ax) and Py=Ay+r(By-Ay)
//
// By examining the values of r & s, you can also determine some
// other limiting conditions:
// If 0 <= r <= 1 && 0 <= s <= 1, intersection exists
// r < 0 or r > 1 or s < 0 or s > 1 line segments do not intersect
// If the denominator in eqn 1 is zero, AB & CD are parallel
// If the numerator in eqn 1 is also zero, AB & CD are collinear.
// If they are collinear, then the segments may be projected to the x-
// or y-axis, and overlap of the projected intervals checked.
//
// If the intersection point of the 2 lines are needed (lines in this
// context mean infinite lines) regardless whether the two line
// segments intersect, then
// If r > 1, P is located on extension of AB
// If r < 0, P is located on extension of BA
// If s > 1, P is located on extension of CD
// If s < 0, P is located on extension of DC
// Also note that the denominators of eqn 1 & 2 are identical.
//
// References:
// [O'Rourke (C)] pp. 249-51
// [Gems III] pp. 199-202 "Faster Line Segment Intersection,"
//----------------------------------------------------------------------
// The result tells where the segment CD is about the vector AB.
// Return "Right" if either C or D is not on the left from AB.
HitResult result = HitResult.Right;
// Calculate the vectors.
Vector AB = orgEnd - orgBegin; // B - A
Vector CA = orgBegin - hitBegin; // A - C
Vector CD = hitEnd - hitBegin; // D - C
double det = Vector.Determinant(AB, CD);
if (DoubleUtil.IsZero(det))
{
// The segments are parallel.
/*if (DoubleUtil.IsZero(Vector.Determinant(CD, CA)))
* {
* // The segments are collinear.
* // Check if their X and Y projections overlap.
* if ((Math.Max(orgBegin.X, orgEnd.X) >= Math.Min(hitBegin.X, hitEnd.X)) &&
* (Math.Min(orgBegin.X, orgEnd.X) <= Math.Max(hitBegin.X, hitEnd.X)) &&
* (Math.Max(orgBegin.Y, orgEnd.Y) >= Math.Min(hitBegin.Y, hitEnd.Y)) &&
* (Math.Min(orgBegin.Y, orgEnd.Y) <= Math.Max(hitBegin.Y, hitEnd.Y)))
* {
* // The segments overlap.
* result = HitResult.Hit;
* }
* else if (false == DoubleUtil.IsZero(AB.X))
* {
* result = ((AB.X * CA.X) > 0) ? HitResult.Behind : HitResult.InFront;
* }
* else
* {
* result = ((AB.Y * CA.Y) > 0) ? HitResult.Behind : HitResult.InFront;
* }
* }
* else */
if (DoubleUtil.IsZero(Vector.Determinant(CD, CA)) || DoubleUtil.GreaterThan(Vector.Determinant(AB, CA), 0))
{
// C is on the left from AB, and, since the segments are parallel, D is also on the left.
result = HitResult.Left;
}
}
else
{
double r = AdjustFIndex(Vector.Determinant(AB, CA) / det);
if (r > 0 && r < 1)
{
// The line defined AB does cross the segment CD.
double s = AdjustFIndex(Vector.Determinant(CD, CA) / det);
if (s > 0 && s < 1)
{
// The crossing point is on the segment AB as well.
result = HitResult.Hit;
}
else
{
result = (0 < s) ? HitResult.InFront : HitResult.Behind;
}
}
else if ((WhereIsVectorAboutVector(hitBegin - orgBegin, AB) == HitResult.Left) ||
(WhereIsVectorAboutVector(hitEnd - orgBegin, AB) == HitResult.Left))
{
// The line defined AB doesn't cross the segment CD, and neither C nor D
// is on the right from AB
result = HitResult.Left;
}
}
return(result);
}
///
/// Create the unmanaged resources
///
internal override void FinalizeCreation()
{
_bitmapInit.EnsureInitializedComplete();
BitmapSourceSafeMILHandle wicTransformer = null;
double scaleX, scaleY;
WICBitmapTransformOptions options;
GetParamsFromTransform(Transform, out scaleX, out scaleY, out options);
using (FactoryMaker factoryMaker = new FactoryMaker())
{
try
{
IntPtr wicFactory = factoryMaker.ImagingFactoryPtr;
wicTransformer = _source.WicSourceHandle;
if (!DoubleUtil.IsOne(scaleX) || !DoubleUtil.IsOne(scaleY))
{
uint width = Math.Max(1, (uint)(scaleX * _source.PixelWidth + 0.5));
uint height = Math.Max(1, (uint)(scaleY * _source.PixelHeight + 0.5));
HRESULT.Check(UnsafeNativeMethods.WICImagingFactory.CreateBitmapScaler(
wicFactory,
out wicTransformer));
lock (_syncObject)
{
HRESULT.Check(UnsafeNativeMethods.WICBitmapScaler.Initialize(
wicTransformer,
_source.WicSourceHandle,
width,
height,
WICInterpolationMode.Fant));
}
}
if (options != WICBitmapTransformOptions.WICBitmapTransformRotate0)
{
// Rotations are extremely slow if we're pulling from a decoder because we end
// up decoding multiple times. Caching the source lets us rotate faster at the cost
// of increased memory usage.
wicTransformer = CreateCachedBitmap(
null,
wicTransformer,
BitmapCreateOptions.PreservePixelFormat,
BitmapCacheOption.Default,
_source.Palette);
// BitmapSource.CreateCachedBitmap already calculates memory pressure for
// the new bitmap, so there's no need to do it before setting it to
// WicSourceHandle.
BitmapSourceSafeMILHandle rotator = null;
HRESULT.Check(UnsafeNativeMethods.WICImagingFactory.CreateBitmapFlipRotator(
wicFactory,
out rotator));
lock (_syncObject)
{
HRESULT.Check(UnsafeNativeMethods.WICBitmapFlipRotator.Initialize(
rotator,
wicTransformer,
options));
}
wicTransformer = rotator;
}
// If we haven't introduced either a scaler or rotator, add a null rotator
// so that our WicSourceHandle isn't the same as our Source's.
if (options == WICBitmapTransformOptions.WICBitmapTransformRotate0 &&
DoubleUtil.IsOne(scaleX) && DoubleUtil.IsOne(scaleY))
{
HRESULT.Check(UnsafeNativeMethods.WICImagingFactory.CreateBitmapFlipRotator(
wicFactory,
out wicTransformer));
lock (_syncObject)
{
HRESULT.Check(UnsafeNativeMethods.WICBitmapFlipRotator.Initialize(
wicTransformer,
_source.WicSourceHandle,
WICBitmapTransformOptions.WICBitmapTransformRotate0));
}
}
WicSourceHandle = wicTransformer;
_isSourceCached = _source.IsSourceCached;
}
catch
{
_bitmapInit.Reset();
throw;
}
}
CreationCompleted = true;
UpdateCachedSettings();
}
/// <summary>
/// Clears double's computation fuzz around 0 and 1
/// </summary>
internal static double AdjustFIndex(double findex)
{
return(DoubleUtil.IsZero(findex) ? 0 : (DoubleUtil.IsOne(findex) ? 1 : findex));
}
public bool Equals(double x, double y)
{
return(DoubleUtil.AreClose(x, y));
}
// Update items size and positions
private void Update(Size constraint)
{
var visibleGroups = this.Items.OfType <RibbonContextualTabGroup>()
.Where(group => group.InnerVisibility == Visibility.Visible && group.Items.Count > 0)
.ToList();
var infinity = new Size(double.PositiveInfinity, double.PositiveInfinity);
var canRibbonTabControlScroll = false;
// Defensively try to find out if the RibbonTabControl can scroll
if (visibleGroups.Count > 0)
{
var firstVisibleItem = visibleGroups.First().FirstVisibleItem;
if (firstVisibleItem != null &&
firstVisibleItem.Parent != null)
{
canRibbonTabControlScroll = ((RibbonTabControl)firstVisibleItem.Parent).CanScroll;
}
}
if (visibleGroups.Count == 0 ||
canRibbonTabControlScroll)
{
// Collapse itemRect
itemsRect = new Rect(0, 0, 0, 0);
// Set quick launch toolbar and header position and size
quickAccessToolbarHolder.Measure(infinity);
if (constraint.Width <= quickAccessToolbarHolder.DesiredSize.Width + 50)
{
quickAccessToolbarRect = new Rect(0, 0, Math.Max(0, constraint.Width - 50), quickAccessToolbarHolder.DesiredSize.Height);
quickAccessToolbarHolder.Measure(quickAccessToolbarRect.Size);
}
if (constraint.Width > quickAccessToolbarHolder.DesiredSize.Width + 50)
{
quickAccessToolbarRect = new Rect(0, 0, quickAccessToolbarHolder.DesiredSize.Width, quickAccessToolbarHolder.DesiredSize.Height);
headerHolder.Measure(infinity);
var allTextWidth = constraint.Width - quickAccessToolbarHolder.DesiredSize.Width;
if (HeaderAlignment == HorizontalAlignment.Left)
{
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width, 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else if (HeaderAlignment == HorizontalAlignment.Center)
{
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width + Math.Max(0, allTextWidth / 2 - headerHolder.DesiredSize.Width / 2), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else if (HeaderAlignment == HorizontalAlignment.Right)
{
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width + Math.Max(0, allTextWidth - headerHolder.DesiredSize.Width), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else if (HeaderAlignment == HorizontalAlignment.Stretch)
{
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width, 0, allTextWidth, constraint.Height);
}
}
else
{
headerRect = new Rect(Math.Max(0, constraint.Width - 50), 0, 50, constraint.Height);
}
}
else
{
// Set items container size and position
var firstItem = visibleGroups.First().FirstVisibleItem;
var lastItem = visibleGroups.Last().LastVisibleItem;
var startX = firstItem.TranslatePoint(new Point(0, 0), this).X;
var endX = lastItem.TranslatePoint(new Point(lastItem.DesiredSize.Width, 0), this).X;
//Get minimum x point (workaround)
foreach (var group in visibleGroups)
{
firstItem = group.FirstVisibleItem;
if (firstItem != null)
{
if (firstItem.TranslatePoint(new Point(0, 0), this).X < startX)
{
startX = firstItem.TranslatePoint(new Point(0, 0), this).X;
}
}
lastItem = group.LastVisibleItem;
if (lastItem != null)
{
if (lastItem.TranslatePoint(new Point(lastItem.DesiredSize.Width, 0), this).X > endX)
{
endX = lastItem.TranslatePoint(new Point(lastItem.DesiredSize.Width, 0), this).X;
}
}
}
// Ensure that startX and endX are never negative
startX = Math.Max(0, startX);
endX = Math.Max(0, endX);
//Looks like thr titlebar things are ordered in an other way
if (DoubleUtil.AreClose(startX, endX) == false)
{
itemsRect = new Rect(startX, 0, Math.Max(0, Math.Min(endX, constraint.Width) - startX), constraint.Height);
}
// Set quick launch toolbar position and size
quickAccessToolbarHolder.Measure(infinity);
var quickAccessToolbarWidth = quickAccessToolbarHolder.DesiredSize.Width;
quickAccessToolbarRect = new Rect(0, 0, Math.Min(quickAccessToolbarWidth, startX), quickAccessToolbarHolder.DesiredSize.Height);
if (quickAccessToolbarWidth > startX)
{
quickAccessToolbarHolder.Measure(quickAccessToolbarRect.Size);
quickAccessToolbarRect = new Rect(0, 0, quickAccessToolbarHolder.DesiredSize.Width, quickAccessToolbarHolder.DesiredSize.Height);
quickAccessToolbarWidth = quickAccessToolbarHolder.DesiredSize.Width;
}
// Set header
headerHolder.Measure(infinity);
switch (HeaderAlignment)
{
case HorizontalAlignment.Left:
{
if (startX - quickAccessToolbarWidth > 150)
{
var allTextWidth = startX - quickAccessToolbarWidth;
headerRect = new Rect(quickAccessToolbarRect.Width, 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else
{
var allTextWidth = Math.Max(0, constraint.Width - endX);
headerRect = new Rect(Math.Min(endX, constraint.Width), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
}
break;
case HorizontalAlignment.Center:
{
var allTextWidthRight = Math.Max(0, constraint.Width - endX);
var allTextWidthLeft = Math.Max(0, startX - quickAccessToolbarWidth);
var fitsRightButNotLeft = (allTextWidthRight >= headerHolder.DesiredSize.Width && allTextWidthLeft < headerHolder.DesiredSize.Width);
if (((startX - quickAccessToolbarWidth < 150 || fitsRightButNotLeft) && (startX - quickAccessToolbarWidth > 0) && (startX - quickAccessToolbarWidth < constraint.Width - endX)) || (endX < constraint.Width / 2))
{
headerRect = new Rect(Math.Min(Math.Max(endX, constraint.Width / 2 - headerHolder.DesiredSize.Width / 2), constraint.Width), 0, Math.Min(allTextWidthRight, headerHolder.DesiredSize.Width), constraint.Height);
}
else
{
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width + Math.Max(0, allTextWidthLeft / 2 - headerHolder.DesiredSize.Width / 2), 0, Math.Min(allTextWidthLeft, headerHolder.DesiredSize.Width), constraint.Height);
}
}
break;
case HorizontalAlignment.Right:
{
if (startX - quickAccessToolbarWidth > 150)
{
var allTextWidth = Math.Max(0, startX - quickAccessToolbarWidth);
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width + Math.Max(0, allTextWidth - headerHolder.DesiredSize.Width), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else
{
var allTextWidth = Math.Max(0, constraint.Width - endX);
headerRect = new Rect(Math.Min(Math.Max(endX, constraint.Width - headerHolder.DesiredSize.Width), constraint.Width), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
}
break;
case HorizontalAlignment.Stretch:
{
if (startX - quickAccessToolbarWidth > 150)
{
var allTextWidth = startX - quickAccessToolbarWidth;
headerRect = new Rect(quickAccessToolbarRect.Width, 0, allTextWidth, constraint.Height);
}
else
{
var allTextWidth = Math.Max(0, constraint.Width - endX);
headerRect = new Rect(Math.Min(endX, constraint.Width), 0, allTextWidth, constraint.Height);
}
}
break;
}
}
headerRect.Width = headerRect.Width + 2;
}
private static void OnTickPlacementChanged(SliderEx slider, AvaloniaPropertyChangedEventArgs e)
{
if (slider.TopTickBar == null || slider.BottomTickBar == null)
{
return;
}
//strange behaviour in the view
//right now we skip this
if (slider.Orientation == Orientation.Vertical)
{
return;
}
//TopTickBar.Width = this.Width;
//BottomTickBar.Width = this.Width;
if (slider.Track?.Thumb != null)
{
switch (slider.Orientation)
{
case Orientation.Horizontal:
if (DoubleUtil.IsDoubleFinite(slider.Track.Thumb.Width))
{
slider.TopTickBar.ReservedSpace = slider.Track.Thumb.Width;
}
break;
case Orientation.Vertical:
if (DoubleUtil.IsDoubleFinite(slider.Track.Thumb.Height))
{
slider.TopTickBar.ReservedSpace = slider.Track.Thumb.Height;
}
break;
}
}
if (slider.Orientation == Orientation.Horizontal)
{
slider.Track.Thumb.Classes.Set("HorizontalSliderUpThumbStyle", slider.TickPlacement == TickPlacement.TopLeft);
slider.Track.Thumb.Classes.Set("HorizontalSliderDownThumbStyle", slider.TickPlacement == TickPlacement.BottomRight);
}
else
{
slider.Track.Thumb.Classes.Set("VerticalSliderLeftThumbStyle", slider.TickPlacement == TickPlacement.TopLeft);
slider.Track.Thumb.Classes.Set("VerticalSliderRightThumbStyle", slider.TickPlacement == TickPlacement.BottomRight);
}
TickPlacement tickBarPlacement = (TickPlacement)e.NewValue;
switch (tickBarPlacement)
{
case TickPlacement.None:
slider.TopTickBar.IsVisible = false;
slider.BottomTickBar.IsVisible = false;
break;
case TickPlacement.TopLeft:
slider.TopTickBar.IsVisible = true;
if (slider.Orientation == Orientation.Horizontal)
{
slider.TrackBackground.Margin = new Thickness(5, 2, 5, 0);
}
else
{
slider.TrackBackground.Margin = new Thickness(2, 5, 0, 5);
}
break;
case TickPlacement.BottomRight:
slider.BottomTickBar.IsVisible = true;
if (slider.Orientation == Orientation.Horizontal)
{
slider.TrackBackground.Margin = new Thickness(5, 2, 5, 0);
}
else
{
slider.TrackBackground.Margin = new Thickness(0, 5, 2, 5);
}
break;
case TickPlacement.Both:
slider.TopTickBar.IsVisible = true;
slider.BottomTickBar.IsVisible = true;
break;
}
}
/// <summary>
/// Measure the content and store the desired size of the content
/// </summary>
/// <param name="constraint"></param>
/// <returns></returns>
protected override Size MeasureOverride(Size constraint)
{
Size curLineSize = new Size();
_panelSize = new Size();
_wrapWidth = double.IsNaN(WrapWidth) ? constraint.Width : WrapWidth;
UIElementCollection children = InternalChildren;
int childrenCount = children.Count;
// Add ToolBar items which have IsOverflowItem = true
ToolBarPanel toolBarPanel = ToolBarPanel;
if (toolBarPanel != null)
{
// Go through the generated items collection and add to the children collection
// any that are marked IsOverFlowItem but aren't already in the children collection.
//
// The order of both collections matters.
//
// It is assumed that any children that were removed from generated items will have
// already been removed from the children collection.
List <UIElement> generatedItemsCollection = toolBarPanel.GeneratedItemsCollection;
int generatedItemsCount = (generatedItemsCollection != null) ? generatedItemsCollection.Count : 0;
int childrenIndex = 0;
for (int i = 0; i < generatedItemsCount; i++)
{
UIElement child = generatedItemsCollection[i];
if ((child != null) && ToolBar.GetIsOverflowItem(child) && !(child is Separator))
{
if (childrenIndex < childrenCount)
{
if (children[childrenIndex] != child)
{
children.Insert(childrenIndex, child);
childrenCount++;
}
}
else
{
children.Add(child);
childrenCount++;
}
childrenIndex++;
}
}
Debug.Assert(childrenIndex == childrenCount, "ToolBarOverflowPanel.Children count mismatch after transferring children from GeneratedItemsCollection.");
}
// Measure all children to determine if we need to increase desired wrapWidth
for (int i = 0; i < childrenCount; i++)
{
UIElement child = children[i] as UIElement;
child.Measure(constraint);
Size childDesiredSize = child.DesiredSize;
if (DoubleUtil.GreaterThan(childDesiredSize.Width, _wrapWidth))
{
_wrapWidth = childDesiredSize.Width;
}
}
// wrapWidth should not be bigger than constraint.Width
_wrapWidth = Math.Min(_wrapWidth, constraint.Width);
for (int i = 0; i < children.Count; i++)
{
UIElement child = children[i] as UIElement;
Size sz = child.DesiredSize;
if (DoubleUtil.GreaterThan(curLineSize.Width + sz.Width, _wrapWidth)) //need to switch to another line
{
_panelSize.Width = Math.Max(curLineSize.Width, _panelSize.Width);
_panelSize.Height += curLineSize.Height;
curLineSize = sz;
if (DoubleUtil.GreaterThan(sz.Width, _wrapWidth)) //the element is wider then the constraint - give it a separate line
{
_panelSize.Width = Math.Max(sz.Width, _panelSize.Width);
_panelSize.Height += sz.Height;
curLineSize = new Size();
}
}
else //continue to accumulate a line
{
curLineSize.Width += sz.Width;
curLineSize.Height = Math.Max(sz.Height, curLineSize.Height);
}
}
//the last line size, if any should be added
_panelSize.Width = Math.Max(curLineSize.Width, _panelSize.Width);
_panelSize.Height += curLineSize.Height;
return(_panelSize);
}
/// <summary>
/// Resize and resposition the SelectionRangeElement.
/// </summary>
private void UpdateSelectionRangeElementPositionAndSize()
{
Size trackSize = new Size(0d, 0d);
Size thumbSize = new Size(0d, 0d);
if (Track == null || DoubleUtil.LessThan(SelectionEnd, SelectionStart))
{
return;
}
trackSize = Track.DesiredSize; //Track.RenderSize;
thumbSize = (Track.Thumb != null) ?
/*Track.Thumb.RenderSize*/
Track.Thumb.DesiredSize : new Size(0d, 0d);
double range = Maximum - Minimum;
double valueToSize;
Layoutable rangeElement = this.SelectionRangeElement as Layoutable;
if (rangeElement == null)
{
return;
}
if (Orientation == Orientation.Horizontal)
{
// Calculate part size for HorizontalSlider
if (DoubleUtil.AreClose(range, 0d) || (DoubleUtil.AreClose(trackSize.Width, thumbSize.Width)))
{
valueToSize = 0d;
}
else
{
valueToSize = Math.Max(0.0, (trackSize.Width - thumbSize.Width) / range);
}
rangeElement.Width = ((SelectionEnd - SelectionStart) * valueToSize);
if (IsDirectionReversed)
{
Canvas.SetLeft(rangeElement, (thumbSize.Width * 0.5) + Math.Max(Maximum - SelectionEnd, 0) * valueToSize);
}
else
{
Canvas.SetLeft(rangeElement, (thumbSize.Width * 0.5) + Math.Max(SelectionStart - Minimum, 0) * valueToSize);
}
}
else
{
// Calculate part size for VerticalSlider
if (DoubleUtil.AreClose(range, 0d) || (DoubleUtil.AreClose(trackSize.Height, thumbSize.Height)))
{
valueToSize = 0d;
}
else
{
valueToSize = Math.Max(0.0, (trackSize.Height - thumbSize.Height) / range);
}
rangeElement.Height = ((SelectionEnd - SelectionStart) * valueToSize);
if (IsDirectionReversed)
{
Canvas.SetTop(rangeElement, (thumbSize.Height * 0.5) + Math.Max(SelectionStart - Minimum, 0) * valueToSize);
}
else
{
Canvas.SetTop(rangeElement, (thumbSize.Height * 0.5) + Math.Max(Maximum - SelectionEnd, 0) * valueToSize);
}
}
}
/// <summary>
/// Helper method to find display index, header and header start position based on given mouse position
/// </summary>
private void FindDisplayIndexAndHeaderPosition(Point startPos, bool findNearestColumn, out int displayIndex, out Point headerPos, out DataGridColumnHeader header)
{
Debug.Assert(ParentDataGrid != null, "ParentDataGrid is null");
Point originPoint = new Point(0, 0);
headerPos = originPoint;
displayIndex = -1;
header = null;
if (startPos.X < 0.0)
{
if (findNearestColumn)
{
displayIndex = 0;
}
return;
}
double headerStartX = 0.0;
double headerEndX = 0.0;
int i = 0;
DataGrid dataGrid = ParentDataGrid;
double averageColumnWidth = dataGrid.InternalColumns.AverageColumnWidth;
bool firstVisibleNonFrozenColumnHandled = false;
for (i = 0; i < dataGrid.Columns.Count; i++)
{
displayIndex++;
DataGridColumnHeader currentHeader = dataGrid.ColumnHeaderFromDisplayIndex(i);
if (currentHeader == null)
{
DataGridColumn column = dataGrid.ColumnFromDisplayIndex(i);
if (!column.IsVisible)
{
continue;
}
else
{
headerStartX = headerEndX;
if (i >= dataGrid.FrozenColumnCount &&
!firstVisibleNonFrozenColumnHandled)
{
headerStartX -= dataGrid.HorizontalScrollOffset;
firstVisibleNonFrozenColumnHandled = true;
}
headerEndX = headerStartX + GetColumnEstimatedWidth(column, averageColumnWidth);
}
}
else
{
GeneralTransform transform = currentHeader.TransformToAncestor(this);
headerStartX = transform.Transform(originPoint).X;
headerEndX = headerStartX + currentHeader.RenderSize.Width;
}
if (DoubleUtil.LessThanOrClose(startPos.X, headerStartX))
{
break;
}
if (DoubleUtil.GreaterThanOrClose(startPos.X, headerStartX) &&
DoubleUtil.LessThanOrClose(startPos.X, headerEndX))
{
if (findNearestColumn)
{
double headerMidX = (headerStartX + headerEndX) * 0.5;
if (DoubleUtil.GreaterThanOrClose(startPos.X, headerMidX))
{
headerStartX = headerEndX;
displayIndex++;
}
if (_draggingSrcColumnHeader != null && _draggingSrcColumnHeader.Column != null && _draggingSrcColumnHeader.Column.DisplayIndex < displayIndex)
{
displayIndex--;
}
}
else
{
header = currentHeader;
}
break;
}
}
if (i == dataGrid.Columns.Count)
{
displayIndex = dataGrid.Columns.Count - 1;
headerStartX = headerEndX;
}
headerPos.X = headerStartX;
return;
}
// Sets Value = SnapToTick(value+direction), unless the result of SnapToTick is Value,
// then it searches for the next tick greater(if direction is positive) than value
// and sets Value to that tick
private void MoveToNextTick(double direction)
{
if (direction != 0.0)
{
double value = this.Value;
// Find the next value by snapping
double next = SnapToTick(Math.Max(this.Minimum, Math.Min(this.Maximum, value + direction)));
bool greaterThan = direction > 0; //search for the next tick greater than value?
// If the snapping brought us back to value, find the next tick point
if (next == value &&
!(greaterThan && value == Maximum) && // Stop if searching up if already at Max
!(!greaterThan && value == Minimum)) // Stop if searching down if already at Min
{
// This property is rarely set so let's try to avoid the GetValue
// caching of the mutable default value
DoubleCollection ticks = null;
if (GetValue(TicksProperty)
!= null)
{
ticks = Ticks;
}
// If ticks collection is available, use it.
// Note that ticks may be unsorted.
if ((ticks != null) && (ticks.Count > 0))
{
for (int i = 0; i < ticks.Count; i++)
{
double tick = ticks[i];
// Find the smallest tick greater than value or the largest tick less than value
if ((greaterThan && DoubleUtil.GreaterThan(tick, value) && (DoubleUtil.LessThan(tick, next) || next == value)) ||
(!greaterThan && DoubleUtil.LessThan(tick, value) && (DoubleUtil.GreaterThan(tick, next) || next == value)))
{
next = tick;
}
}
}
else if (DoubleUtil.GreaterThan(TickFrequency, 0.0))
{
// Find the current tick we are at
double tickNumber = Math.Round((value - Minimum) / TickFrequency);
if (greaterThan)
{
tickNumber += 1.0;
}
else
{
tickNumber -= 1.0;
}
next = Minimum + tickNumber * TickFrequency;
}
}
// Update if we've found a better value
if (next != value)
{
this.SetValue(ValueProperty, next);
}
}
}
// Parse a FigureLength from a string given the CultureInfo.
static internal void FromString(
string s,
CultureInfo cultureInfo,
out double value,
out FigureUnitType unit)
{
string goodString = s.Trim().ToLowerInvariant();
value = 0.0;
unit = FigureUnitType.Pixel;
int i;
int strLen = goodString.Length;
int strLenUnit = 0;
double unitFactor = 1.0;
// this is where we would handle trailing whitespace on the input string.
// peel [unit] off the end of the string
i = 0;
if (goodString == UnitStrings[i].Name)
{
strLenUnit = UnitStrings[i].Name.Length;
unit = UnitStrings[i].UnitType;
}
else
{
for (i = 1; i < UnitStrings.Length; ++i)
{
// Note: this is NOT a culture specific comparison.
// this is by design: we want the same unit string table to work across all cultures.
if (goodString.EndsWith(UnitStrings[i].Name, StringComparison.Ordinal))
{
strLenUnit = UnitStrings[i].Name.Length;
unit = UnitStrings[i].UnitType;
break;
}
}
}
// we couldn't match a real unit from FigureUnitTypes.
// try again with a converter-only unit (a pixel equivalent).
if (i >= UnitStrings.Length)
{
for (i = 0; i < PixelUnitStrings.Length; ++i)
{
// Note: this is NOT a culture specific comparison.
// this is by design: we want the same unit string table to work across all cultures.
if (goodString.EndsWith(PixelUnitStrings[i], StringComparison.Ordinal))
{
strLenUnit = PixelUnitStrings[i].Length;
unitFactor = PixelUnitFactors[i];
break;
}
}
}
// this is where we would handle leading whitespace on the input string.
// this is also where we would handle whitespace between [value] and [unit].
// check if we don't have a [value]. This is acceptable for certain UnitTypes.
if (strLen == strLenUnit && unit != FigureUnitType.Pixel)
{
value = 1;
}
// we have a value to parse.
else
{
Debug.Assert(unit == FigureUnitType.Pixel ||
DoubleUtil.AreClose(unitFactor, 1.0));
string valueString = goodString.Substring(0, strLen - strLenUnit);
value = Convert.ToDouble(valueString, cultureInfo) * unitFactor;
}
}
/// <summary>
/// Verify all text formatting arguments
/// </summary>
private void VerifyTextFormattingArguments(
TextSource textSource,
int firstCharIndex,
double paragraphWidth,
TextParagraphProperties paragraphProperties,
TextRunCache textRunCache
)
{
if (textSource == null)
{
throw new ArgumentNullException("textSource");
}
if (textRunCache == null)
{
throw new ArgumentNullException("textRunCache");
}
if (paragraphProperties == null)
{
throw new ArgumentNullException("paragraphProperties");
}
if (paragraphProperties.DefaultTextRunProperties == null)
{
throw new ArgumentNullException("paragraphProperties.DefaultTextRunProperties");
}
if (paragraphProperties.DefaultTextRunProperties.Typeface == null)
{
throw new ArgumentNullException("paragraphProperties.DefaultTextRunProperties.Typeface");
}
if (DoubleUtil.IsNaN(paragraphWidth))
{
throw new ArgumentOutOfRangeException("paragraphWidth", SR.Get(SRID.ParameterValueCannotBeNaN));
}
if (double.IsInfinity(paragraphWidth))
{
throw new ArgumentOutOfRangeException("paragraphWidth", SR.Get(SRID.ParameterValueCannotBeInfinity));
}
if (paragraphWidth < 0 ||
paragraphWidth > Constants.RealInfiniteWidth)
{
throw new ArgumentOutOfRangeException("paragraphWidth", SR.Get(SRID.ParameterMustBeBetween, 0, Constants.RealInfiniteWidth));
}
double realMaxFontRenderingEmSize = Constants.RealInfiniteWidth / Constants.GreatestMutiplierOfEm;
if (paragraphProperties.DefaultTextRunProperties.FontRenderingEmSize < 0 ||
paragraphProperties.DefaultTextRunProperties.FontRenderingEmSize > realMaxFontRenderingEmSize)
{
throw new ArgumentOutOfRangeException("paragraphProperties.DefaultTextRunProperties.FontRenderingEmSize", SR.Get(SRID.ParameterMustBeBetween, 0, realMaxFontRenderingEmSize));
}
if (paragraphProperties.Indent > Constants.RealInfiniteWidth)
{
throw new ArgumentOutOfRangeException("paragraphProperties.Indent", SR.Get(SRID.ParameterCannotBeGreaterThan, Constants.RealInfiniteWidth));
}
if (paragraphProperties.LineHeight > Constants.RealInfiniteWidth)
{
throw new ArgumentOutOfRangeException("paragraphProperties.LineHeight", SR.Get(SRID.ParameterCannotBeGreaterThan, Constants.RealInfiniteWidth));
}
if (paragraphProperties.DefaultIncrementalTab < 0 ||
paragraphProperties.DefaultIncrementalTab > Constants.RealInfiniteWidth)
{
throw new ArgumentOutOfRangeException("paragraphProperties.DefaultIncrementalTab", SR.Get(SRID.ParameterMustBeBetween, 0, Constants.RealInfiniteWidth));
}
}
override protected bool IsOffscreenCore()
{
if (!Owner.IsVisible)
{
return(true);
}
Rect boundingRect = DataGridAutomationPeer.CalculateVisibleBoundingRect(this.Owner);
return(DoubleUtil.AreClose(boundingRect, Rect.Empty) || DoubleUtil.AreClose(boundingRect.Height, 0.0) || DoubleUtil.AreClose(boundingRect.Width, 0.0));
}
internal bool IsCurDivideOptimalSizeValid(double curDivideOptimalSize, Size size)
{
return(DoubleUtil.LessThanOrClose(curDivideOptimalSize, _orientation == Orientation.Horizontal ? size.Width : size.Height));
}