disk intersection shape, crash bugfix

src/mtsgui/logwidget.cpp

@@ -102,8 +102,7 @@ void LogWidget::show() {
 	} else {
 		/* Center the dialog */
 		QDesktopWidget *desktop = QApplication::desktop();
-		QRect geo = desktop->screenGeometry(
-				static_cast<QWidget *>(parent())->geometry().center());
+		QRect geo = desktop->screenGeometry();
 		QPoint windowPos(
 			geo.left() + (geo.width() - width()) / 2, 
 			geo.top() + (geo.height() - height())/2

src/mtsgui/server.cpp

@@ -214,8 +214,7 @@ void ServerWidget::show() {
 	} else {
 		/* Center the dialog */
 		QDesktopWidget *desktop = QApplication::desktop();
-		QRect geo = desktop->screenGeometry(
-				static_cast<QWidget *>(parent())->geometry().center());
+		QRect geo = desktop->screenGeometry();
 		QPoint windowPos(
 			geo.left() + (geo.width() - width()) / 2, 
 			geo.top() + (geo.height() - height())/2

src/shapes/SConscript

@@ -5,6 +5,7 @@ plugins += env.SharedLibrary('ply', ['ply/ply.cpp', 'ply/ply_parser.cpp'],
 	CPPPATH = env['CPPPATH'] + ['ply'])
 plugins += env.SharedLibrary('serialized', ['serialized.cpp'])
 plugins += env.SharedLibrary('rectangle', ['rectangle.cpp'])
+plugins += env.SharedLibrary('disk', ['disk.cpp'])
 plugins += env.SharedLibrary('sphere', ['sphere.cpp'])
 plugins += env.SharedLibrary('cylinder', ['cylinder.cpp'])
 plugins += env.SharedLibrary('hair', ['hair.cpp'])

src/shapes/rectangle.cpp

@@ -94,6 +94,8 @@ public:
 	}
 
 	void configure() {
+		Shape::configure();
+
 		m_dpdu = m_objectToWorld(Vector(1, 0, 0));
 		m_dpdv = m_objectToWorld(Vector(0, 1, 0));
 		Normal normal = normalize(m_objectToWorld(Normal(0, 0, 1)));