Fixed drag-and-drop of files onto the app icon on Mac OS X.

Info.plist

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+	<key>CFBundleDocumentTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array/>
+			<key>CFBundleTypeName</key>
+			<string>Text</string>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>LSItemContentTypes</key>
+			<array>
+				<string>public.plain-text</string>
+			</array>
+			<key>NSDocumentClass</key>
+			<string></string>
+		</dict>
+	</array>
+	<key>CFBundleIconFile</key>
+	<string>endless-sky-editor.icns</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleGetInfoString</key>
+	<string>Created by Qt/QMake</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleExecutable</key>
+	<string>endless-sky-editor</string>
+	<key>CFBundleIdentifier</key>
+	<string>endless-sky-editor</string>
+	<key>NOTE</key>
+	<string>This file was generated by Qt/QMake.</string>
+</dict>
+</plist>

MainWindow.cpp

@@ -39,14 +39,35 @@ MainWindow::MainWindow(Map &map, QWidget *parent)
     CreateWidgets();
     CreateMenus();
     setAcceptDrops(true);
+
+    resize(1200, 900);
+    show();
 }
 
+
+
 MainWindow::~MainWindow()
 {
 }
 
 
 
+void MainWindow::DoOpen(const QString &path)
+{
+    if(path.isEmpty())
+        return;
+
+    map.Load(path);
+    galaxyView->Center();
+    systemView->Select(nullptr);
+    planetView->Reinitialize();
+    tabs->setCurrentWidget(galaxyView);
+    update();
+    galaxyView->update();
+}
+
+
+
 void MainWindow::Open()
 {
     // TODO: ask about saving changes.
@@ -243,19 +264,3 @@ void MainWindow::CreateMenus()
     // Activate only the menu for the current tab.
     TabChanged(0);
 }
-
-
-
-void MainWindow::DoOpen(const QString &path)
-{
-    if(path.isEmpty())
-        return;
-
-    map.Load(path);
-    galaxyView->Center();
-    systemView->Select(nullptr);
-    planetView->Reinitialize();
-    tabs->setCurrentWidget(galaxyView);
-    update();
-    galaxyView->update();
-}

MainWindow.h

@@ -37,6 +37,8 @@ class MainWindow : public QMainWindow
     MainWindow(Map &map, QWidget *parent = 0);
     ~MainWindow();
 
+    void DoOpen(const QString &path);
+
 public slots:
     void Open();
     void Save();
@@ -53,7 +55,6 @@ public slots:
 private:
     void CreateWidgets();
     void CreateMenus();
-    void DoOpen(const QString &path);
 
 
 private:

main.cpp

@@ -16,12 +16,33 @@ PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 
 #include <QApplication>
 #include <QFileInfo>
+#include <QFileOpenEvent>
 #include <QString>
 
 #include <iostream>
 
 using namespace std;
 
+class EventFilter: public QObject {
+public:
+    EventFilter(MainWindow &window) : QObject(), window(window) {};
+    ~EventFilter() {};
+
+    bool eventFilter(QObject *obj, QEvent *event)
+    {
+        if(event->type() == QEvent::FileOpen)
+        {
+            window.DoOpen(dynamic_cast<QFileOpenEvent *>(event)->file());
+            return false;
+        }
+        return obj->event(event);
+    }
+
+    MainWindow &window;
+};
+
+
+
 void PrintHelp();
 void PrintVersion();
 
@@ -59,16 +80,15 @@ int main(int argc, char *argv[])
             path.clear();
     }
 
-    QApplication a(argc, argv);
+    QApplication app(argc, argv);
     Map mapData;
     if(!path.isEmpty())
         mapData.Load(path);
 
-    MainWindow w(mapData);
-    w.resize(1200, 900);
-    w.show();
+    MainWindow window(mapData);
+    app.installEventFilter(new EventFilter(window));
 
-    return a.exec();
+    return app.exec();
 }