Render copyright information

src/pulsaranimationwidget.cpp

@@ -339,7 +339,7 @@ void PulsarAnimationWidget::paintGL()
     }
     glPopMatrix();
 
-    // save current state
+    // save current state (the following is using parallel projection)
     glMatrixMode(GL_PROJECTION);
     glPushMatrix();
     {
@@ -401,6 +401,35 @@ void PulsarAnimationWidget::paintGL()
         }
         glPopMatrix();
     }
+
+    // save current state (the following is using parallel projection)
+    glMatrixMode(GL_PROJECTION);
+    glPushMatrix();
+    {
+        glLoadIdentity();
+        glOrtho(0, width(), 0, height(), 0.1, 501.0);
+        glMatrixMode(GL_MODELVIEW);
+        glPushMatrix();
+        {
+            glLoadIdentity();
+
+            // draw copyright info last (appears in front of everything)
+            glColor4f(1.0f, 1.0f, 1.0f, 0.5f);
+            QFont font;
+            font.setPointSize(11);
+            font.setBold(true);
+            font.setFamily("Arial");
+            font.setStyleStrategy((QFont::StyleStrategy) (QFont::OpenGLCompatible | QFont::PreferQuality));
+            renderText(10, 25, -100, QString::fromLocal8Bit("Copyright © 2009-2011"), font);
+            renderText(10, 10, -100, QString::fromLocal8Bit("Max-Planck-Insitut für Gravitationsphysik"), font);
+
+            // restore original state
+            glMatrixMode(GL_PROJECTION);
+        }
+        glPopMatrix();
+        glMatrixMode(GL_MODELVIEW);
+    }
+    glPopMatrix();
 }
 
 void PulsarAnimationWidget::runAnimation()