Preserve space before and after printing Matrix/Vector to Debug output.

Modified unit tests to check that.

src/Math/Matrix.h

@@ -233,8 +233,8 @@ template<class T> class Matrix<T, 2> {
 
 #ifndef DOXYGEN_GENERATING_OUTPUT
 template<class T, size_t size> Corrade::Utility::Debug operator<<(Corrade::Utility::Debug debug, const Magnum::Math::Matrix<T, size>& value) {
-    debug.setFlag(Corrade::Utility::Debug::SpaceAfterEachValue, false);
     debug << "Matrix(";
+    debug.setFlag(Corrade::Utility::Debug::SpaceAfterEachValue, false);
     for(size_t row = 0; row != size; ++row) {
         if(row != 0) debug << ",\n       ";
         for(size_t col = 0; col != size; ++col) {
@@ -242,7 +242,9 @@ template<class T, size_t size> Corrade::Utility::Debug operator<<(Corrade::Utili
             debug << value.at(row, col);
         }
     }
-    return debug << ')';
+    debug << ')';
+    debug.setFlag(Corrade::Utility::Debug::SpaceAfterEachValue, true);
+    return debug;
 }
 #endif
 

src/Math/Test/MatrixTest.cpp

@@ -247,6 +247,16 @@ void MatrixTest::debug() {
                                                       "       5, 4, -1, 4,\n"
                                                       "       8, 7, 8, 5,\n"
                                                       "       4, 3, 0, 9)\n"));
+
+    o.str("");
+    Debug(&o) << "a" << Matrix4() << "b" << Matrix4();
+    QCOMPARE(QString::fromStdString(o.str()), QString("a Matrix(1, 0, 0, 0,\n"
+                                                        "       0, 1, 0, 0,\n"
+                                                        "       0, 0, 1, 0,\n"
+                                                        "       0, 0, 0, 1) b Matrix(1, 0, 0, 0,\n"
+                                                        "       0, 1, 0, 0,\n"
+                                                        "       0, 0, 1, 0,\n"
+                                                        "       0, 0, 0, 1)\n"));
 }
 
 }}}

src/Math/Test/VectorTest.cpp

@@ -140,6 +140,10 @@ void VectorTest::debug() {
     ostringstream o;
     Debug(&o) << Vector4(vec);
     QCOMPARE(QString::fromStdString(o.str()), QString("Vector(0.5, 15, 1, 1)\n"));
+
+    o.str("");
+    Debug(&o) << "a" << Vector4() << "b" << Vector4();
+    QCOMPARE(QString::fromStdString(o.str()), QString("a Vector(0, 0, 0, 0) b Vector(0, 0, 0, 0)\n"));
 }
 
 }}}

src/Math/Vector.h

@@ -179,13 +179,15 @@ template<class T, size_t size> class Vector {
 
 #ifndef DOXYGEN_GENERATING_OUTPUT
 template<class T, size_t size> Corrade::Utility::Debug operator<<(Corrade::Utility::Debug debug, const Magnum::Math::Vector<T, size>& value) {
-    debug.setFlag(Corrade::Utility::Debug::SpaceAfterEachValue, false);
     debug << "Vector(";
+    debug.setFlag(Corrade::Utility::Debug::SpaceAfterEachValue, false);
     for(size_t i = 0; i != size; ++i) {
         if(i != 0) debug << ", ";
         debug << value.at(i);
     }
-    return debug << ')';
+    debug << ')';
+    debug.setFlag(Corrade::Utility::Debug::SpaceAfterEachValue, true);
+    return debug;
 }
 #endif