From bdfd77bc4abb7986e49cdd688bcf18cee4e68ab0 Mon Sep 17 00:00:00 2001
From: Daniel Wolf <dwolf@dannad.de>
Date: Wed, 14 Dec 2016 21:00:55 +0100
Subject: [PATCH] Added convenience functions to TimeRange

---
 src/time/TimeRange.cpp | 28 ++++++++++++++++++++++++++++
 src/time/TimeRange.h   |  7 +++++++
 2 files changed, 35 insertions(+)

diff --git a/src/time/TimeRange.cpp b/src/time/TimeRange.cpp
index 9398c18..80daa72 100644
--- a/src/time/TimeRange.cpp
+++ b/src/time/TimeRange.cpp
@@ -35,6 +35,26 @@ bool TimeRange::empty() const {
 	return start == end;
 }
 
+void TimeRange::setStart(time_type newStart) {
+	resize(newStart, end);
+}
+
+void TimeRange::setEnd(time_type newEnd) {
+	resize(start, newEnd);
+}
+
+void TimeRange::setStartIfEarlier(time_type newStart) {
+	if (newStart < start) {
+		setStart(newStart);
+	}
+}
+
+void TimeRange::setEndIfLater(time_type newEnd) {
+	if (newEnd > end) {
+		setEnd(newEnd);
+	}
+}
+
 void TimeRange::resize(const TimeRange& newRange) {
 	start = newRange.start;
 	end = newRange.end;
@@ -63,6 +83,14 @@ void TimeRange::trim(const TimeRange& limits) {
 	resize(newRange);
 }
 
+void TimeRange::trimLeft(time_type value) {
+	trim({value, end});
+}
+
+void TimeRange::trimRight(time_type value) {
+	trim({start, value});
+}
+
 bool TimeRange::operator==(const TimeRange& rhs) const {
 	return start == rhs.start && end == rhs.end;
 }
diff --git a/src/time/TimeRange.h b/src/time/TimeRange.h
index 15f9049..f1524d1 100644
--- a/src/time/TimeRange.h
+++ b/src/time/TimeRange.h
@@ -19,12 +19,19 @@ public:
 	time_type getDuration() const;
 	bool empty() const;
 
+	void setStart(time_type newStart);
+	void setEnd(time_type newEnd);
+	void setStartIfEarlier(time_type newStart);
+	void setEndIfLater(time_type newEnd);
+
 	void resize(const TimeRange& newRange);
 	void resize(time_type start, time_type end);
 	void shift(time_type offset);
 	void grow(time_type value);
 	void shrink(time_type value);
 	void trim(const TimeRange& limits);
+	void trimLeft(time_type value);
+	void trimRight(time_type value);
 
 	bool operator==(const TimeRange& rhs) const;
 	bool operator!=(const TimeRange& rhs) const;