From f8d8934e33ebdb165655297d7eb427fccc19cea8 Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@jvnv.net>
Date: Fri, 25 Jun 2010 23:04:23 +0200
Subject: Added Application-class.

---
 application.cpp | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 application.h   | 27 +++++++++++++++++
 2 files changed, 119 insertions(+)
 create mode 100644 application.cpp
 create mode 100644 application.h

diff --git a/application.cpp b/application.cpp
new file mode 100644
index 0000000..890ac0f
--- /dev/null
+++ b/application.cpp
@@ -0,0 +1,92 @@
+#include "application.h"
+
+#include <stdexcept>
+
+Application::Application() {
+	// Initialize SDL
+	if(SDL_Init(SDL_INIT_VIDEO)) {
+		throw(std::runtime_error("SDL initialization failed"));
+	}
+	
+	please_quit = false;
+}
+
+Application::~Application() {
+	
+}
+
+void Application::init_window(unsigned int w, unsigned int h, bool fs) {
+	// Fetch the video info
+	const SDL_VideoInfo *info = SDL_GetVideoInfo();
+	if(!info) {
+		throw(std::runtime_error("SDL info query failed"));
+	}
+	// The SDL mode-flags
+	int flags = SDL_OPENGL;       // OpenGL in SDL
+	flags |= SDL_GL_DOUBLEBUFFER; // Double buffering
+	flags |= SDL_HWPALETTE;       // Hardware palette
+	// Check for hardware surface aviability
+	if(info->hw_available) {
+		flags |= SDL_HWSURFACE;
+	} else {
+		flags |= SDL_SWSURFACE;
+	}
+	// Check for hardware blit ability
+	if(info->blit_hw) {
+		flags |= SDL_HWACCEL;
+	}
+	// Setup double buffering
+	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+	
+	SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
+	
+	SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, 1);
+	
+	// Get our surface
+	surface = SDL_SetVideoMode(w, h, 32, flags);
+	if(!surface) {
+		throw(std::runtime_error("Video mode set failed"));
+	}
+}
+
+void Application::run() {
+	while(1) {
+		SDL_Event e;
+		while(SDL_PollEvent(&e)) {
+			event(e);
+		}
+		
+		if(please_quit) {
+			return;
+		}
+		
+		update();
+	}
+}
+
+void Application::quit() {
+	please_quit = true;
+}
+
+void Application::event(const SDL_Event& e) {
+	switch(e.type) {
+		case SDL_QUIT:
+			quit();
+			break;
+		case SDL_KEYDOWN:
+			event_keypress(e.key.keysym.sym);
+			break;
+		default:
+			break;
+	}
+}
+
+void Application::event_keypress(SDLKey key) {
+	switch(key) {
+		case SDLK_ESCAPE:
+			quit();
+			break;
+		default:
+			break;
+	}
+}
\ No newline at end of file
diff --git a/application.h b/application.h
new file mode 100644
index 0000000..ea8d899
--- /dev/null
+++ b/application.h
@@ -0,0 +1,27 @@
+#ifndef APPLICATION_H
+#define APPLICATION_H
+
+#include <SDL/SDL.h>
+
+class Application {
+	private:
+		SDL_Surface *surface;
+		bool please_quit;
+		
+	protected:
+		void init_window(unsigned int w, unsigned int h, bool fs = false);
+		
+		virtual void event(const SDL_Event& e);
+		virtual void event_keypress(SDLKey key);
+		
+		virtual void update() = 0;
+	
+	public:
+		Application();
+		virtual ~Application();
+		
+		void run();
+		void quit();
+};
+
+#endif
-- 
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