Feature/open external (#126)

* Added functionality to open the current model in an external program such as a slicer

* Added a check for absolute path

* Added ~ expand for filename provided via argv

* Fixed indents

Fixed indents

Fixed indents

Fixed indents

* Added a file dialog if the default option externalCmd is not set

src/app.cpp

@@ -1,16 +1,24 @@
 #include <QDebug>
 #include <QFileOpenEvent>
+#include <QDir>
 
 #include "app.h"
 #include "window.h"
 
 App::App(int& argc, char *argv[]) :
     QApplication(argc, argv), window(new Window())
 {
-    if (argc > 1)
-        window->load_stl(argv[1]);
+    if (argc > 1) {
+        QString filename = argv[1];
+        if (filename.startsWith("~")) {
+            filename.replace(0, 1, QDir::homePath());
+        }
+        window->load_stl(filename);
+    }
     else
+    {
         window->load_stl(":gl/sphere.stl");
+    }
     window->show();
 }
 

src/window.cpp

@@ -5,6 +5,7 @@
 #include "loader.h"
 #include "shaderlightprefs.h"
 
+const QString Window::OPEN_EXTERNAL_KEY = "externalCmd";
 const QString Window::RECENT_FILE_KEY = "recentFiles";
 const QString Window::INVERT_ZOOM_KEY = "invertZoom";
 const QString Window::AUTORELOAD_KEY = "autoreload";
@@ -17,6 +18,7 @@ const QString Window::RESET_TRANSFORM_ON_LOAD_KEY = "resetTransformOnLoad";
 Window::Window(QWidget *parent) :
     QMainWindow(parent),
     open_action(new QAction("Open", this)),
+    open_external_action(new QAction("Open with", this)),
     about_action(new QAction("About", this)),
     quit_action(new QAction("Quit", this)),
     perspective_action(new QAction("Perspective", this)),
@@ -75,6 +77,11 @@ Window::Window(QWidget *parent) :
                      this, &Window::on_open);
     this->addAction(open_action);
 
+    open_external_action->setShortcut(QKeySequence::Open);
+    QObject::connect(open_external_action, &QAction::triggered, this, &Window::on_open_external);
+    this->addAction(open_external_action);
+    open_external_action->setShortcut(QKeySequence(Qt::ALT + Qt::Key_S));
+
     QList<QKeySequence> quitShortcuts = { QKeySequence::Quit, QKeySequence::Close };
     quit_action->setShortcuts(quitShortcuts);
     QObject::connect(quit_action, &QAction::triggered,
@@ -106,6 +113,7 @@ Window::Window(QWidget *parent) :
 
     const auto file_menu = menuBar()->addMenu("File");
     file_menu->addAction(open_action);
+    file_menu->addAction(open_external_action);
     file_menu->addMenu(recent_files);
     file_menu->addSeparator();
     file_menu->addAction(reload_action);
@@ -234,6 +242,15 @@ void Window::load_persist_settings(){
         orthographic_action->setChecked(true);
     }
 
+    QString path = settings.value(OPEN_EXTERNAL_KEY, "").toString();
+    if (!QDir::isAbsolutePath(path) && !path.isEmpty())
+    {
+        path = QStandardPaths::findExecutable(path);
+    }
+    QString displayName = path.mid(path.lastIndexOf(QDir::separator()) + 1);
+    open_external_action->setText("Open with " + displayName);
+    open_external_action->setData(path);
+
     DrawMode draw_mode = (DrawMode)settings.value(DRAW_MODE_KEY, DRAWMODECOUNT).toInt();
 
     if(draw_mode >= DRAWMODECOUNT)
@@ -269,6 +286,29 @@ void Window::on_open()
     }
 }
 
+void Window::on_open_external() const
+{
+    if (current_file.isEmpty())
+    {
+        return;
+    }
+
+
+    QString program = open_external_action->data().toString();
+    if (program.isEmpty()) {
+        program = QFileDialog::getOpenFileName((QWidget*) this, "Select program to open with", QDir::rootPath());
+        if (!program.isEmpty()) {
+            QSettings settings;
+            settings.setValue(OPEN_EXTERNAL_KEY, program);
+            QString displayName = program.mid(program.lastIndexOf(QDir::separator()) + 1);
+            open_external_action->setText("Open with " + displayName);
+            open_external_action->setData(program);
+        }
+    }
+
+    QProcess::startDetached(program, QStringList(current_file));
+}
+
 void Window::on_about()
 {
     QMessageBox::about(this, "",

src/window.h

@@ -27,6 +27,7 @@ class Window : public QMainWindow
 
 public slots:
     void on_open();
+    void on_open_external() const;
     void on_about();
     void on_bad_stl();
     void on_empty_mesh();
@@ -63,6 +64,7 @@ private slots:
     QPair<QString, QString> get_file_neighbors();
 
     QAction* const open_action;
+    QAction* const open_external_action;
     QAction* const about_action;
     QAction* const quit_action;
     QAction* const perspective_action;
@@ -93,6 +95,7 @@ private slots:
     QActionGroup* const recent_files_group;
     QAction* const recent_files_clear_action;
     const static int MAX_RECENT_FILES=8;
+    static const QString OPEN_EXTERNAL_KEY;
     const static QString RECENT_FILE_KEY;
     const static QString INVERT_ZOOM_KEY;
     const static QString AUTORELOAD_KEY;