change CMakeLists.txt and util_test.cc

main.cc

@@ -1,14 +1,32 @@
+#include <cstdio>
 #include <SFML/System.hpp>
 #include <SFML/Graphics.hpp>
 #include <SFML/Window.hpp>
 #include <spdlog/spdlog.h>
+#include "UtilTool.h"
+
+constexpr int CLIENT_WIDTH = 800;
+constexpr int CLIENT_HEIGHT = 600;
 
 
-int main(int argc, char** const argv){
-	spdlog::info("Hello, World!");
-	sf::RenderWindow window(sf::VideoMode(800, 600), "mp");
+int main(int argc, char** argv){
+	spdlog::info("Current WorkDir Is: {}",argv[0]);
+	if(argc != 2){
+		spdlog::error("Usage: mp filename ");
+		return 0;
+	}
+	if(!UtilTool::CheckFileIsImage(argv[1])){
+		spdlog::info("Unsupport File Type: {}",argv[1]);
+		return 0;
+	}
 	sf::Texture texture;
+	texture.loadFromFile(argv[1]);
+	sf::RenderWindow window(sf::VideoMode(CLIENT_WIDTH, CLIENT_HEIGHT), "mp");
 	sf::Sprite sprite;
+	sprite.setTexture(texture);
+	auto imgSize = texture.getSize();
+	auto scale = std::min(CLIENT_WIDTH/imgSize.x,CLIENT_HEIGHT/imgSize.y);
+	sprite.setScale(scale, scale);
 	bool running = true;
 
 	while(running){
@@ -22,8 +40,13 @@ int main(int argc, char** const argv){
 					running = false;
 				}
 			}
+			if(event.type == sf::Event::Resized){
+				auto scale = std::min(event.size.width / imgSize.x, event.size.height / imgSize.y);
+				sprite.setScale(scale, scale);
+			}
 		}
 		window.clear();
+		window.draw(sprite);
 		window.display();
 	}
 	return 0;