Implement machine reload

Also this commit changes how we pass machine configuration around in
gui.

3 files changed, 28 insertions, 12 deletions

diff --git a/qtmips_gui/mainwindow.cpp b/qtmips_gui/mainwindow.cpp
index 65e6469..a476290 100644
--- a/qtmips_gui/mainwindow.cpp
+++ b/qtmips_gui/mainwindow.cpp
@@ -36,6 +36,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
     // Connect signals from menu
     connect(ui->actionExit, SIGNAL(triggered(bool)), this, SLOT(close()));
     connect(ui->actionNew, SIGNAL(triggered(bool)), this, SLOT(new_machine()));
+    connect(ui->actionReload, SIGNAL(triggered(bool)), this, SLOT(machine_reload()));
     connect(ui->actionRegisters, SIGNAL(triggered(bool)), this, SLOT(show_registers()));
     connect(ui->actionProgram_memory, SIGNAL(triggered(bool)), this, SLOT(show_program()));
     connect(ui->actionMemory, SIGNAL(triggered(bool)), this, SLOT(show_memory()));
@@ -74,12 +75,15 @@ void MainWindow::start() {
     ndialog->show();
 }
 
-void MainWindow::create_core(machine::MachineConfig *config) {
+void MainWindow::create_core(const machine::MachineConfig &config) {
+    // Create machine
+    machine::QtMipsMachine *new_machine = new machine::QtMipsMachine(&config);
+
     // Remove old machine
     if (machine != nullptr)
         delete machine;
-    // Create machine
-    machine = new machine::QtMipsMachine(config);
+    machine = new_machine;
+
     // Create machine view
     if (corescene != nullptr)
         delete corescene;
@@ -112,6 +116,20 @@ void MainWindow::new_machine() {
     ndialog->show();
 }
 
+void MainWindow::machine_reload() {
+    machine::MachineConfig cnf(&machine->config()); // We have to make local copy as create_core will delete current machine
+    try {
+        create_core(cnf);
+    } catch (const machine::QtMipsExceptionInput &e) {
+        QMessageBox msg(this);
+        msg.setText(e.msg(false));
+        msg.setIcon(QMessageBox::Critical);
+        msg.setDetailedText(e.msg(true));
+        msg.setWindowTitle("Error while initializing new machine");
+        msg.exec();
+    }
+}
+
 #define SHOW_HANDLER(NAME)  void MainWindow::show_##NAME() { \
         show_dockwidget(NAME); \
     } \
diff --git a/qtmips_gui/mainwindow.h b/qtmips_gui/mainwindow.h
index 9431515..1389f21 100644
--- a/qtmips_gui/mainwindow.h
+++ b/qtmips_gui/mainwindow.h
@@ -23,13 +23,14 @@ public:
     ~MainWindow();
 
     void start();
-    void create_core(machine::MachineConfig *config);
+    void create_core(const machine::MachineConfig &config);
 
     bool configured();
 
 public slots:
     // Actions signals
     void new_machine();
+    void machine_reload();
     void show_registers();
     void show_program();
     void show_memory();
diff --git a/qtmips_gui/newdialog.cpp b/qtmips_gui/newdialog.cpp
index 062eb2d..cc23e2f 100644
--- a/qtmips_gui/newdialog.cpp
+++ b/qtmips_gui/newdialog.cpp
@@ -41,9 +41,9 @@ void NewDialog::cancel() {
 void NewDialog::create() {
     MainWindow *prnt = (MainWindow*)parent();
 
-    machine::MachineConfig *mc = new machine::MachineConfig();
-    mc->set_elf(ui->elf_file->text());
-    mc->set_pipelined(ui->pipelined->isChecked());
+    machine::MachineConfig mc;
+    mc.set_elf(ui->elf_file->text());
+    mc.set_pipelined(ui->pipelined->isChecked());
     // TODO other settings
 
     try {
@@ -52,18 +52,15 @@ void NewDialog::create() {
         QMessageBox msg(this);
         msg.setText(e.msg(false));
         msg.setIcon(QMessageBox::Critical);
-        msg.setToolTip("Please check that ELF executable realy exists and is in correct format.");
+        msg.setToolTip("Please check that ELF executable really exists and is in correct format.");
         msg.setDetailedText(e.msg(true));
         msg.setWindowTitle("Error while initializing new machine");
         msg.exec();
-        goto cleanup;
+        return;
     }
 
     store_settings(); // Save to settings
     this->close();
-
-cleanup:
-    delete mc;
 }
 
 void NewDialog::browse_elf() {