Add "New program" action #32

This action allows for the user to create a new program. This will check whether
the current program should be saved, and if so, present the user with save
options.

resources/images.qrc

@@ -18,5 +18,6 @@
         <file>spreadsheet.svg</file>
         <file>documents.svg</file>
         <file>logo.svg</file>
+        <file>file.svg</file>
     </qresource>
 </RCC>

src/mainwindow.cpp

@@ -9,6 +9,7 @@
 #include <QMessageBox>
 #include <QPushButton>
 #include <QTextStream>
+
 #include "parser.h"
 
 #include "programfiletab.h"
@@ -203,3 +204,45 @@ void MainWindow::on_actionSave_Files_As_triggered() {
         on_actionSave_Files_triggered();
     }
 }
+
+void MainWindow::on_actionNew_Program_triggered() {
+    QMessageBox mbox;
+    mbox.setWindowTitle("New Program...");
+    mbox.setStandardButtons(QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel);
+    if (!m_ui->programfiletab->getAssemblyText().isEmpty() && m_currentFile.isEmpty()) {
+        // User wrote a program but did not save it to a file yet
+        mbox.setText("Save program before creating new file?");
+        auto ret = mbox.exec();
+        switch (ret) {
+            case QMessageBox::Yes: {
+                on_actionSave_Files_As_triggered();
+                break;
+            }
+            case QMessageBox::No: {
+                break;
+            }
+            case QMessageBox::Cancel: {
+                return;
+            }
+        }
+    } else if (!m_currentFile.isEmpty()) {
+        // User previously stored a program but may have updated in the meantime - prompt to ask whether the program
+        // should be stored to the current file name
+        mbox.setText(QString("Save program \"%1\" before creating new file?").arg(m_currentFile));
+        auto ret = mbox.exec();
+        switch (ret) {
+            case QMessageBox::Yes: {
+                on_actionSave_Files_triggered();
+                break;
+            }
+            case QMessageBox::No: {
+                break;
+            }
+            case QMessageBox::Cancel: {
+                return;
+            }
+        }
+    }
+    m_currentFile.clear();
+    m_ui->programfiletab->newProgram();
+}

src/mainwindow.h

@@ -34,6 +34,8 @@ private slots:
 
     void on_actionSave_Files_As_triggered();
 
+    void on_actionNew_Program_triggered();
+
 signals:
     void update();
     void updateMemoryTab();

src/mainwindow.ui

@@ -92,6 +92,7 @@
      <addaction name="actionSave_as_text"/>
      <addaction name="actionSave_as_flat_binary"/>
     </widget>
+    <addaction name="actionNew_Program"/>
     <addaction name="actionLoadBinaryFile"/>
     <addaction name="actionLoadAssemblyFile"/>
     <addaction name="separator"/>
@@ -274,6 +275,15 @@
     <string>Save as flat binary</string>
    </property>
   </action>
+  <action name="actionNew_Program">
+   <property name="icon">
+    <iconset resource="../resources/images.qrc">
+     <normaloff>:/icons/file.svg</normaloff>:/icons/file.svg</iconset>
+   </property>
+   <property name="text">
+    <string>New Program...</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>

src/programfiletab.cpp

@@ -45,6 +45,12 @@ void ProgramfileTab::setTimerEnabled(bool state) {
     m_ui->assemblyedit->setTimerEnabled(state);
 }
 
+void ProgramfileTab::newProgram() {
+    m_ui->assemblyfile->toggle();
+    m_ui->assemblyedit->reset();
+    m_ui->assemblyedit->clear();
+}
+
 void ProgramfileTab::on_pushButton_clicked() {
     // load file based on current file type selection
     if (m_ui->binaryfile->isChecked()) {

src/programfiletab.h

@@ -22,6 +22,7 @@ class ProgramfileTab : public QWidget {
     void clearOutputArray();
     QString getAssemblyText();
     const QByteArray& getBinaryData();
+    void newProgram();
 
 signals:
     void loadBinaryFile();