Platform: added Sdl2Application::exit().

src/Platform/Sdl2Application.cpp

@@ -40,7 +40,7 @@ Sdl2Application::InputEvent::Modifiers fixedModifiers(Uint16 mod) {
 
 }
 
-Sdl2Application::Sdl2Application(int, char**, const std::string& name, const Vector2i& size): _redraw(true) {
+Sdl2Application::Sdl2Application(int, char**, const std::string& name, const Vector2i& size): flags(Flag::Redraw) {
     if(SDL_Init(SDL_INIT_VIDEO) < 0) {
         Error() << "Cannot initialize SDL.";
         std::exit(1);
@@ -83,7 +83,7 @@ Sdl2Application::~Sdl2Application() {
 }
 
 int Sdl2Application::exec() {
-    for(;;) {
+    while(!(flags & Flag::Exit)) {
         SDL_Event event;
 
         while(SDL_PollEvent(&event)) {
@@ -92,10 +92,10 @@ int Sdl2Application::exec() {
                     switch(event.window.event) {
                         case SDL_WINDOWEVENT_RESIZED:
                             viewportEvent({event.window.data1, event.window.data2});
-                            _redraw = true;
+                            flags |= Flag::Redraw;
                             break;
                         case SDL_WINDOWEVENT_EXPOSED:
-                            _redraw = true;
+                            flags |= Flag::Redraw;
                             break;
                     } break;
 
@@ -127,8 +127,8 @@ int Sdl2Application::exec() {
             }
         }
 
-        if(_redraw) {
-            _redraw = false;
+        if(flags & Flag::Redraw) {
+            flags &= ~Flag::Redraw;
             drawEvent();
         } else Corrade::Utility::sleep(5);
     }

src/Platform/Sdl2Application.h

@@ -80,6 +80,9 @@ class Sdl2Application {
          */
         int exec();
 
+        /** @brief Exit application main loop */
+        inline void exit() { flags |= Flag::Exit; }
+
     protected:
 
         /** @{ @name Drawing functions */
@@ -94,7 +97,7 @@ class Sdl2Application {
         inline void swapBuffers() { SDL_GL_SwapWindow(window); }
 
         /** @copydoc GlutApplication::redraw() */
-        inline void redraw() { _redraw = true; }
+        inline void redraw() { flags |= Flag::Redraw; }
 
         /*@}*/
 
@@ -146,14 +149,24 @@ class Sdl2Application {
         /*@}*/
 
     private:
+        enum class Flag: std::uint8_t {
+            Redraw = 1 << 0,
+            Exit = 1 << 1
+        };
+
+        typedef Corrade::Containers::EnumSet<Flag, unsigned int> Flags;
+        CORRADE_ENUMSET_FRIEND_OPERATORS(Flags)
+
         SDL_Window* window;
         SDL_GLContext context;
 
         Context* c;
 
-        bool _redraw;
+        Flags flags;
 };
 
+CORRADE_ENUMSET_OPERATORS(Sdl2Application::Flags)
+
 /**
 @brief Base for input events