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

3 files changed, 101 insertions, 4 deletions

diff --git a/src/ui/mainwindow.cpp b/src/ui/mainwindow.cpp
index 7e4ca77..5a60391 100644
--- a/src/ui/mainwindow.cpp
+++ b/src/ui/mainwindow.cpp
@@ -1,14 +1,66 @@
 #include "ui/mainwindow.h"
 #include "ui_mainwindow.h"
 
-MainWindow::MainWindow(QWidget *parent) :
+#include "ui/metadatadialog.h"
+
+#include <iostream>
+
+MainWindow::MainWindow(samb::Structogram *structogram, QWidget *parent) :
     QMainWindow(parent),
-    ui(new Ui::MainWindow)
+    _ui(new Ui::MainWindow),
+    _structogram(structogram)
 {
-    ui->setupUi(this);
+    _ui->setupUi(this);
+    initData();
 }
 
 MainWindow::~MainWindow()
 {
-    delete ui;
+    delete _ui;
+}
+
+/**** private slots ****/
+
+void MainWindow::on_newButton_clicked()
+{
+    if (_structogram != nullptr)
+    {
+        // TODO: implement save dialog
+        std::cout << "TODO: implement save dialog" << std::endl;
+
+        delete _structogram;
+        _structogram = nullptr;
+    }
+
+    MetadataDialog *dialog = new MetadataDialog(this);
+    if (dialog->exec() == QDialog::Accepted)
+    {
+        _structogram = new samb::Structogram(dialog->title(), dialog->author());
+    }
+
+    delete dialog;
+}
+
+void MainWindow::on_metadataButton_clicked()
+{
+    if (_structogram == nullptr) { return; }
+
+    MetadataDialog *dialog = new MetadataDialog(this);
+    dialog->setMetadata(_structogram->title(), _structogram->author());
+
+    if (dialog->exec() == QDialog::Accepted)
+    {
+        _structogram->title(dialog->title());
+        _structogram->author(dialog->author());
+    }
+}
+
+/**** private methods ****/
+
+void MainWindow::initData()
+{
+    if (_structogram == nullptr)
+    {
+        _structogram = new samb::Structogram("", "");
+    }
 }
diff --git a/src/ui/metadatadialog.cpp b/src/ui/metadatadialog.cpp
new file mode 100644
index 0000000..348f225
--- /dev/null
+++ b/src/ui/metadatadialog.cpp
@@ -0,0 +1,31 @@
+#include "ui/metadatadialog.h"
+#include "ui_metadatadialog.h"
+
+MetadataDialog::MetadataDialog(QWidget *parent) :
+    QDialog(parent),
+    _ui(new Ui::MetadataDialog)
+{
+    _ui->setupUi(this);
+}
+
+MetadataDialog::~MetadataDialog()
+{
+    delete _ui;
+}
+
+void MetadataDialog::setMetadata(const QString& title, const QString& author)
+{
+    _ui->titleEdit->setText(title);
+    _ui->authorEdit->setText(author);
+}
+
+
+QString MetadataDialog::title() const
+{
+    return _ui->titleEdit->text();
+}
+
+QString MetadataDialog::author() const
+{
+    return _ui->authorEdit->text();
+}
diff --git a/src/ui/painter.cpp b/src/ui/painter.cpp
new file mode 100644
index 0000000..b04e389
--- /dev/null
+++ b/src/ui/painter.cpp
@@ -0,0 +1,14 @@
+#include "ui/painter.h"
+#include "ui_painter.h"
+
+Painter::Painter(QWidget *parent) :
+    QWidget(parent),
+    _ui(new Ui::Painter)
+{
+    _ui->setupUi(this);
+}
+
+Painter::~Painter()
+{
+    delete _ui;
+}