From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 14 Jul 2015 22:29:28 +0000 (+0300)
Subject: Enable chaining of matrix modifiers
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=d8234c16eea3631c1b6e2c10f391ec86d9b97bfa

Enable chaining of matrix modifiers
---

diff --git a/source/matrix.cpp b/source/matrix.cpp
index ece99e34..ddc0cdf5 100644
--- a/source/matrix.cpp
+++ b/source/matrix.cpp
@@ -22,24 +22,25 @@ Matrix::Matrix(const LinAl::Matrix<float, 4, 4> &other):
 	Base(other)
 { }
 
-void Matrix::multiply(const Matrix &other)
+Matrix &Matrix::multiply(const Matrix &other)
 {
 	*this = *this*other;
+	return *this;
 }
 
-void Matrix::translate(const Vector3 &t)
+Matrix &Matrix::translate(const Vector3 &t)
 {
-	multiply(translation(t));
+	return multiply(translation(t));
 }
 
-void Matrix::rotate(const Angle &a, const Vector3 &x)
+Matrix &Matrix::rotate(const Angle &a, const Vector3 &x)
 {
-	multiply(rotation(a, x));
+	return multiply(rotation(a, x));
 }
 
-void Matrix::scale(const Vector3 &s)
+Matrix &Matrix::scale(const Vector3 &s)
 {
-	multiply(scaling(s));
+	return multiply(scaling(s));
 }
 
 Matrix Matrix::operator*(const Matrix &other) const
@@ -49,8 +50,7 @@ Matrix Matrix::operator*(const Matrix &other) const
 
 Matrix &Matrix::operator*=(const Matrix &other)
 {
-	multiply(other);
-	return *this;
+	return multiply(other);
 }
 
 Vector4 Matrix::operator*(const Vector4 &vec) const
diff --git a/source/matrix.h b/source/matrix.h
index 2dc3b972..95932bc6 100644
--- a/source/matrix.h
+++ b/source/matrix.h
@@ -23,18 +23,18 @@ public:
 
 	const float *data() const { return &Base::operator()(0, 0); }
 
-	void multiply(const Matrix &);
-	void translate(float x, float y, float z) { translate(Vector3(x, y, z)); }
-	void translate(const Vector3 &);
-	void rotate(const Angle &a, float x, float y, float z) { rotate(a, Vector3(x, y, z)); }
-	void rotate(const Angle &, const Vector3 &);
-	void rotate(float a, float x, float y, float z) { rotate(Angle::from_radians(a), Vector3(x, y, z)); }
-	void rotate(float a, const Vector3 &x) { rotate(Angle::from_radians(a), x); }
-	void rotate_deg(float a, float x, float y, float z) { rotate(Angle::from_degrees(a), Vector3(x, y, z)); }
-	void rotate_deg(float a, const Vector3 & x) { rotate(Angle::from_degrees(a), x); }
-	void scale(float s) { scale(Vector3(s, s, s)); }
-	void scale(float x, float y, float z) { scale(Vector3(x, y, z)); }
-	void scale(const Vector3 &);
+	Matrix &multiply(const Matrix &);
+	Matrix &translate(float x, float y, float z) { return translate(Vector3(x, y, z)); }
+	Matrix &translate(const Vector3 &);
+	Matrix &rotate(const Angle &a, float x, float y, float z) { return rotate(a, Vector3(x, y, z)); }
+	Matrix &rotate(const Angle &, const Vector3 &);
+	Matrix &rotate(float a, float x, float y, float z) { return rotate(Angle::from_radians(a), Vector3(x, y, z)); }
+	Matrix &rotate(float a, const Vector3 &x) { return rotate(Angle::from_radians(a), x); }
+	Matrix &rotate_deg(float a, float x, float y, float z) { return rotate(Angle::from_degrees(a), Vector3(x, y, z)); }
+	Matrix &rotate_deg(float a, const Vector3 & x) { return rotate(Angle::from_degrees(a), x); }
+	Matrix &scale(float s) { return scale(Vector3(s, s, s)); }
+	Matrix &scale(float x, float y, float z) { return scale(Vector3(x, y, z)); }
+	Matrix &scale(const Vector3 &);
 
 	Matrix operator*(const Matrix &) const;
 	Matrix &operator*=(const Matrix &);