/// <summary>
/// Match a string value to conditional formatting & return the first matching item
/// Handles dates converted to normalized string values also (yyyymmdd)
/// </summary>
/// <param name="rules"></param>
/// <param name="value"></param>
/// <returns></returns>
public static CondFormatRule Match(
CondFormat condFormat,
string stringValue)
{
double v, v1, v2;
int ri;
object o;
CondFormatRules rules = condFormat.Rules;
CondFormatRule rule = null;
DateTime dtValue = DateTime.MinValue, dt2;
if (condFormat.ColumnType == MetaColumnType.CompoundId)
{
return(Match(condFormat, new CompoundId(stringValue)));
}
if (String.IsNullOrEmpty(stringValue))
{
return(MatchNull(condFormat));
}
int lowerLimitRule = -1;
int upperLimitRule = -1;
for (ri = 0; ri < rules.Count; ri++)
{
rule = rules[ri];
if (!String.IsNullOrEmpty(stringValue))
{ // check where we have a value
string value = rule.Value;
if (rule.ValueNormalized != null)
{
value = rule.ValueNormalized;
}
string value2 = rule.Value2;
if (rule.Value2Normalized != null)
{
value2 = rule.Value2Normalized;
}
if (rule.OpCode == CondFormatOpCode.Within) // check date range
{
dtValue = DateTimeMx.NormalizedToDateTime(stringValue); // convert to a DateTime
double withinValue = rule.ValueNumber;
if (Lex.Contains(value2, "Day"))
{
dt2 = dtValue.AddDays(withinValue);
}
else if (Lex.Contains(value2, "Week"))
{
dt2 = dtValue.AddDays(withinValue * 7);
}
else if (Lex.Contains(value2, "Month"))
{
dt2 = dtValue.AddMonths((int)withinValue); // note must be integer months
}
else if (Lex.Contains(value2, "Year"))
{
dt2 = dtValue.AddYears((int)withinValue); // note must be integer years
}
else
{
throw new Exception("Unexpected date unit: " + value2);
}
dt2 = dt2.AddDays(1); // add one day to dt2 since it's time is 12:00 AM and the Now date includes the hours passed so far today
if (DateTime.Compare(dt2, DateTime.Now) >= 0)
{
break; // if stored date/time + within value is >= current date/time then condition passes
}
else
{
continue;
}
}
if (rule.OpCode == CondFormatOpCode.Between && value2 != null && value != null)
{
if (Lex.Gt(value, value2))
{
string s1 = value; value = value2; value2 = s1;
}
if (Lex.Ge(stringValue, value) && Lex.Le(stringValue, value2))
{
break;
}
}
else if (rule.OpCode == CondFormatOpCode.NotBetween && value2 != null && value != null)
{
if (Lex.Gt(value, value2))
{
string s1 = value; value = value2; value2 = s1;
}
if (Lex.Lt(stringValue, value) || Lex.Gt(stringValue, value2))
{
break;
}
}
else if (rule.OpCode == CondFormatOpCode.Eq &&
Lex.Eq(stringValue, value))
{
break;
}
else if (rule.OpCode == CondFormatOpCode.NotEq &&
Lex.Ne(stringValue, value))
{
break;
}
else if (rule.OpCode == CondFormatOpCode.Gt &&
Lex.Gt(stringValue, value))
{
break;
}
else if (rule.OpCode == CondFormatOpCode.Lt &&
Lex.Lt(stringValue, value))
{
break;
}
else if (rule.OpCode == CondFormatOpCode.Ge &&
Lex.Ge(stringValue, value))
{
if (rules.ColoringStyle == CondFormatStyle.ColorScale || ri > rules.Count - 1)
{
break;
}
else
{
lowerLimitRule = ri;
}
}
else if (rule.OpCode == CondFormatOpCode.Le &&
Lex.Le(stringValue, value))
{
upperLimitRule = ri;
break;
}
else if (rule.OpCode == CondFormatOpCode.Substring &&
stringValue.ToLower().IndexOf(value.ToLower()) >= 0)
{
break;
}
else if (rule.OpCode == CondFormatOpCode.NotNull || rule.OpCode == CondFormatOpCode.Exists) // value is not null or exists
{
break;
}
else if (rule.OpCode == CondFormatOpCode.Unknown && // treat unknown as equal
Lex.Eq(stringValue, value))
{
break;
}
}
else if (rule.OpCode == CondFormatOpCode.Null || rule.OpCode == CondFormatOpCode.NotExists)
{
break; // null value & null conditional format operator
}
}
//DebugLog.Message(stringValue + " " + ri); // debug
if (ri >= rules.Count)
{
return(null); // return null if no rule matches
}
// Matches a rule associated with a particular color
if (rules.ColoringStyle == CondFormatStyle.ColorSet)
{
return(rule);
}
// Calculate a linear gradient between the two color limits
else if (rules.ColoringStyle == CondFormatStyle.ColorScale && rule.OpCode == CondFormatOpCode.Between)
{ // newer single color scale rule
ConvertDateValuesToDoubles(condFormat, stringValue, rule.ValueNormalized, rule.Value2Normalized, out v, out v1, out v2);
rule.ValueNumber = v1;
rule.Value2Number = v2;
rule = BuildColorRuleForColorScale(v, rule);
return(rule);
}
else if (rules.ColoringStyle == CondFormatStyle.ColorScale && lowerLimitRule >= 0 && upperLimitRule >= lowerLimitRule)
{ // older two-rule, double color scale rules
CondFormatRule r1 = rules[lowerLimitRule];
CondFormatRule r2 = rules[upperLimitRule];
ConvertDateValuesToDoubles(condFormat, stringValue, r1.ValueNormalized, r2.ValueNormalized, out v, out v1, out v2);
rule.ValueNumber = v1;
rule.Value2Number = v2;
rule = BuildColorRuleForGradientValue(v, v1, v2, r1.BackColor1, r2.BackColor1);
return(rule);
}
// Calculate a percentage for a data bar for a value between the two color limits
else if (rules.ColoringStyle == CondFormatStyle.DataBar)
{
ConvertDateValuesToDoubles(condFormat, stringValue, rule.ValueNormalized, rule.Value2Normalized, out v, out v1, out v2);
rule.ValueNumber = v1;
rule.Value2Number = v2;
rule = BuildPercentageRuleForDataBarValue(v, rule);
return(rule);
}
else if (rules.ColoringStyle == CondFormatStyle.IconSet)
{
rule = BuildImageRuleForIconSetValue(rule);
return(rule); // image name should be included in rule
}
else
{
return(rule); // shouldn't happen
}
}