Change to Qt5 conding conventions

Data structure changes:

 - Structogram is no longer just a scope, because it needs to store
   metadata
 - All structures now use QString instead of std::string, to
   integrate better in the Qt framework

New code:

  - MainWindow ui code, building layout
  - MetadataDialog to change the metadata stored in the Structogram
  - Painter is a widget (still unimplemented) to show the structogram
    on the GUI

11 files changed, 177 insertions, 123 deletions

diff --git a/include/diagram/branchstatement.h b/include/diagram/branchstatement.h
new file mode 100644
index 0000000..6c5e416
--- /dev/null
+++ b/include/diagram/branchstatement.h
@@ -0,0 +1,30 @@
+#ifndef DIAGRAM_BRANCHSTATEMENT_H
+#define DIAGRAM_BRANCHSTATEMENT_H
+
+#include "diagram/statement.h"
+
+#include <map>
+#include <QString>
+
+namespace samb {
+
+class BranchStatement : public Statement
+{
+public:
+    BranchStatement(Type t, const QString &condition, pointer next);
+
+    /* accessors */
+    const std::map<QString, pointer>& branches() const { return _branches; }
+    std::size_t branches_count() const { return _branchesCount; }
+
+    inline const QString& condition() const { return text(); }
+    inline void condition(const QString &condition) { return text(condition); }
+
+private:
+    std::map<QString, pointer> _branches;
+    std::size_t _branchesCount = 0;
+};
+
+} /* namespace samb */
+
+#endif /* DIAGRAM_BRANCHSTATEMENT_H */
diff --git a/include/diagram/branchstatement.hpp b/include/diagram/branchstatement.hpp
deleted file mode 100644
index b7cc495..0000000
--- a/include/diagram/branchstatement.hpp
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * BranchStatement.hpp
- *
- *  Created on: Nov 28, 2017
- *      Author: naopross
- */
-
-#ifndef SRC_DIAGRAM_BRANCHSTATEMENT_HPP_
-#define SRC_DIAGRAM_BRANCHSTATEMENT_HPP_
-
-#include "Statement.hpp"
-
-#include <map>
-
-namespace samb {
-
-class BranchStatement: public Statement {
-public:
-    BranchStatement(Type t, const std::string& condition, pointer next);
-
-    /* accessors */
-    const std::map<std::string, pointer>& branches() const { return m_branches; }
-    std::size_t branchesCount() const { return m_branchesCount; }
-
-    inline const std::string& condition() const { return text(); }
-    inline void condition(const std::string& condition) { return text(condition); }
-
-private:
-    std::map<std::string, pointer> m_branches;
-    std::size_t m_branchesCount = 0;
-};
-
-} /* namespace samb */
-
-#endif /* SRC_DIAGRAM_BRANCHSTATEMENT_HPP_ */
diff --git a/include/diagram/iteratorstatement.h b/include/diagram/iteratorstatement.h
new file mode 100644
index 0000000..a8f6d59
--- /dev/null
+++ b/include/diagram/iteratorstatement.h
@@ -0,0 +1,28 @@
+#ifndef DIAGRAM_ITERATORSTATEMENT_H
+#define DIAGRAM_ITERATORSTATEMENT_H
+
+#include "diagram/statement.h"
+#include "diagram/scope.h"
+
+#include <QString>
+
+namespace samb {
+
+class IteratorStatement : public Statement
+{
+public:
+    IteratorStatement(Type t, const QString &condition, pointer next);
+
+    /* accessors */
+    const Scope& inner() const { return _inner; }
+
+    inline const QString& condition() const { return text(); }
+    inline void condition(const QString &condition) { return text(condition); }
+
+private:
+    Scope _inner;
+};
+
+} /* namespace samb */
+
+#endif /* DIAGRAM_ITERATORSTATEMENT_H */
diff --git a/include/diagram/iteratorstatement.hpp b/include/diagram/iteratorstatement.hpp
deleted file mode 100644
index a14d78d..0000000
--- a/include/diagram/iteratorstatement.hpp
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * IteratorStatement.hpp
- *
- *  Created on: Nov 28, 2017
- *      Author: naopross
- */
-
-#ifndef SRC_DIAGRAM_ITERATORSTATEMENT_HPP_
-#define SRC_DIAGRAM_ITERATORSTATEMENT_HPP_
-
-#include "Statement.hpp"
-#include "Scope.hpp"
-
-namespace samb {
-
-class IteratorStatement: public Statement {
-public:
-    IteratorStatement(Type t, const std::string& condition, pointer next);
-
-    /* accessors */
-    const Scope& inner() const { return m_inner; }
-
-    inline const std::string& condition() const { return text(); }
-    inline void condition(const std::string& condition) { return text(condition); }
-
-private:
-    Scope m_inner;
-};
-
-} /* namespace samb */
-
-#endif /* SRC_DIAGRAM_ITERATORSTATEMENT_HPP_ */
diff --git a/include/diagram/scope.hpp b/include/diagram/scope.h
index bf85759..63698dd 100644
--- a/include/diagram/scope.hpp
+++ b/include/diagram/scope.h
@@ -1,12 +1,9 @@
-/*
- *  Created on: Nov 28, 2017
- *      Author: naopross
- */
+#ifndef DIAGRAM_SCOPE_H
+#define DIAGRAM_SCOPE_H
 
-#ifndef SRC_DIAGRAM_SCOPE_HPP_
-#define SRC_DIAGRAM_SCOPE_HPP_
+#include "diagram/statement.h"
 
-#include "Statement.hpp"
+#include <QString>
 
 namespace samb {
 
@@ -17,7 +14,8 @@ namespace samb {
  * BranchStatement or a IteratorStatement, to hold the statements within their
  * scope.
  */
-class Scope : public Statement {
+class Scope : public Statement
+{
 public:
     class iterator {
     public:
@@ -31,27 +29,27 @@ public:
         Statement::pointer operator->() const;
 
     private:
-        Statement::pointer m_current;
+        Statement::pointer _current;
     };
 
-    explicit Scope(std::string label);
-    Scope(std::string label, Statement::pointer first);
-    ~Scope();
+    explicit Scope(const QString &label);
+    Scope(const QString &label, Statement::pointer first);
+    virtual ~Scope();
 
     iterator insert_after(iterator it, Statement::pointer statement);
     iterator erase_after(iterator it);
 
     /* accessors */
-    std::size_t size() const { return m_size; }
+    std::size_t size() const { return _size; }
 
     /* iterator */
-    iterator begin() { return iterator(m_head); }
-    iterator end() { return iterator(m_tail); }
+    iterator begin() { return iterator(_head); }
+    iterator end() { return iterator(_tail); }
 
 private:
-    Statement::pointer m_head;
-    Statement::pointer m_tail;
-    std::size_t m_size = 0;
+    Statement::pointer _head;
+    Statement::pointer _tail;
+    std::size_t _size = 0;
 };
 
 } /* namespace samb */
diff --git a/include/diagram/statement.hpp b/include/diagram/statement.h
index ab8c5b7..5cce908 100644
--- a/include/diagram/statement.hpp
+++ b/include/diagram/statement.h
@@ -1,16 +1,11 @@
-/*
- * Statement.h
- *
- *  Created on: Nov 23, 2017
- *      Author: naopross
- */
-
-#ifndef SRC_DIAGRAM_STATEMENT_H_
-#define SRC_DIAGRAM_STATEMENT_H_
+#ifndef DIAGRAM_STATEMENT_H
+#define DIAGRAM_STATEMENT_H
 
 #include <string>
 #include <memory>
 
+#include <QString>
+
 namespace samb {
 
 /*  Possible types of statement, according to the NS diagram paper
@@ -28,7 +23,8 @@ namespace samb {
  * (linked list), that is also a common interface for the various types of
  * statements.
  */
-class Statement {
+class Statement
+{
 public:
     using pointer = std::shared_ptr<Statement>;
 
@@ -44,24 +40,24 @@ public:
 
     const Type type;
 
-    Statement(Type t, const std::string& text);
-    Statement(Type t, const std::string& text, pointer next);
+    Statement(Type t, const QString &text);
+    Statement(Type t, const QString &text, pointer next);
     virtual ~Statement();
 
     bool operator==(const Statement& other) const;
 
     /* accessors */
-    void next(pointer next) { m_next = next; }
-    pointer next() const { return m_next; }
+    void next(pointer next) { _next = next; }
+    pointer next() const { return _next; }
 
-    void text(const std::string& text) { m_text = text; }
-    const std::string& text() const { return m_text; }
+    void text(const QString &text) { _text = text; }
+    const QString& text() const { return _text; }
 
 private:
-    std::string m_text;
-    pointer m_next;
+    QString _text;
+    pointer _next;
 };
 
 } /* namespace samb */
 
-#endif /* SRC_DIAGRAM_STATEMENT_H_ */
+#endif /* DIAGRAM_STATEMENT_H */
diff --git a/include/diagram/structogram.h b/include/diagram/structogram.h
new file mode 100644
index 0000000..6b2e0db
--- /dev/null
+++ b/include/diagram/structogram.h
@@ -0,0 +1,29 @@
+#ifndef DIAGRAM_STRUCTOGRAM_H
+#define DIAGRAM_STRUCTOGRAM_H
+
+#include "diagram/scope.h"
+
+#include <QString>
+
+namespace samb {
+
+class Structogram : public Scope
+{
+public:
+    Structogram(const QString &title, const QString &author);
+    ~Structogram();
+
+    /* accessors */
+    void title(const QString &title) { text(title); }
+    const QString& title() const { return text(); }
+
+    void author(const QString &author) { _author = author; }
+    const QString& author() const { return _author; }
+
+private:
+    QString _author;
+};
+
+}
+
+#endif /* DIAGRAM_STRUCTOGRAM_H */
diff --git a/include/diagram/structogram.hpp b/include/diagram/structogram.hpp
deleted file mode 100644
index 84a4b84..0000000
--- a/include/diagram/structogram.hpp
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Structogram.hpp
- *
- *  Created on: Nov 28, 2017
- *      Author: naopross
- */
-
-#ifndef SRC_DIAGRAM_STRUCTOGRAM_HPP_
-#define SRC_DIAGRAM_STRUCTOGRAM_HPP_
-
-#include "Scope.hpp"
-
-namespace samb {
-    typedef Scope Structogram;
-}
-
-#endif /* SRC_DIAGRAM_STRUCTOGRAM_HPP_ */
diff --git a/include/ui/mainwindow.h b/include/ui/mainwindow.h
index a3948a9..0beb4a2 100644
--- a/include/ui/mainwindow.h
+++ b/include/ui/mainwindow.h
@@ -3,6 +3,8 @@
 
 #include <QMainWindow>
 
+#include "diagram/structogram.h"
+
 namespace Ui {
 class MainWindow;
 }
@@ -12,11 +14,18 @@ class MainWindow : public QMainWindow
     Q_OBJECT
 
 public:
-    explicit MainWindow(QWidget *parent = 0);
+    explicit MainWindow(samb::Structogram *structogram = nullptr, QWidget *parent = nullptr);
     ~MainWindow();
 
+private slots:
+    void on_newButton_clicked();
+    void on_metadataButton_clicked();
+
 private:
-    Ui::MainWindow *ui;
+    Ui::MainWindow *_ui;
+    samb::Structogram *_structogram;
+
+    void initData();
 };
 
 #endif // MAINWINDOW_H
diff --git a/include/ui/metadatadialog.h b/include/ui/metadatadialog.h
new file mode 100644
index 0000000..0ed2f17
--- /dev/null
+++ b/include/ui/metadatadialog.h
@@ -0,0 +1,26 @@
+#ifndef NEWDIALOG_H
+#define NEWDIALOG_H
+
+#include <QDialog>
+
+namespace Ui {
+class MetadataDialog;
+}
+
+class MetadataDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit MetadataDialog(QWidget *parent = 0);
+    ~MetadataDialog();
+
+    void setMetadata(const QString& title, const QString& author);
+    QString title() const;
+    QString author() const;
+
+private:
+    Ui::MetadataDialog *_ui;
+};
+
+#endif // NEWDIALOG_H
diff --git a/include/ui/painter.h b/include/ui/painter.h
new file mode 100644
index 0000000..df62776
--- /dev/null
+++ b/include/ui/painter.h
@@ -0,0 +1,22 @@
+#ifndef PAINTER_H
+#define PAINTER_H
+
+#include <QWidget>
+
+namespace Ui {
+class Painter;
+}
+
+class Painter : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit Painter(QWidget *parent = 0);
+    ~Painter();
+
+private:
+    Ui::Painter *_ui;
+};
+
+#endif // PAINTER_H