Added TimeRange.trim() method

src/TimeRange.cpp

@@ -58,6 +58,11 @@ void TimeRange::shrink(time_type value) {
 	grow(-value);
 }
 
+void TimeRange::trim(const TimeRange& limits) {
+	TimeRange newRange(std::max(start, limits.start), std::min(end, limits.end));
+	resize(newRange);
+}
+
 bool TimeRange::operator==(const TimeRange& rhs) const {
 	return start == rhs.start && end == rhs.end;
 }

src/TimeRange.h

@@ -24,6 +24,7 @@ public:
 	void shift(time_type offset);
 	void grow(time_type value);
 	void shrink(time_type value);
+	void trim(const TimeRange& limits);
 
 	bool operator==(const TimeRange& rhs) const;
 	bool operator!=(const TimeRange& rhs) const;