Refactor packages and add GUI with start button

src/main/java/wtf/beatrice/autosqueal/ui/MainWindow.java

@@ -0,0 +1,84 @@
+package wtf.beatrice.autosqueal.ui;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import wtf.beatrice.autosqueal.controls.CursorMover;
+import wtf.beatrice.autosqueal.listener.CursorMoveListener;
+import wtf.beatrice.autosqueal.util.RunnerUtil;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.image.BufferedImage;
+import java.util.Timer;
+
+public class MainWindow
+{
+    private static final Logger LOGGER = LogManager.getLogger(MainWindow.class);
+
+    private static final int WINDOW_HEIGHT = 600;
+    private static final int WINDOW_WIDTH = 800;
+
+    private final Timer TIMER_RUNNER = new Timer();
+
+    private CursorMover cursorMover = null;
+
+
+    public MainWindow() {
+    }
+
+    public void init() {
+        JFrame frame = new JFrame();
+        frame.setSize(new Dimension(WINDOW_WIDTH, WINDOW_HEIGHT));
+
+        Button toggleButton = new Button("Start");
+        toggleButton.setBounds(new Rectangle((WINDOW_WIDTH / 2) - 40, WINDOW_HEIGHT - 60, 80, 30));
+        toggleButton.addActionListener(e -> toggleRunning(toggleButton));
+        frame.add(toggleButton);
+
+        int bordersPx = 10;
+        int rescaleRateo = ((WINDOW_WIDTH - (2 * bordersPx)) * 100) / RunnerUtil.SCREEN_WIDTH;
+        int rescaleWidth = RunnerUtil.SCREEN_WIDTH * rescaleRateo / 100;
+        int rescaleHeight = RunnerUtil.SCREEN_HEIGHT * rescaleRateo / 100;
+        JLabel imageLabel = new JLabel(getScreenCapture(rescaleWidth, rescaleHeight));
+        imageLabel.setBounds(new Rectangle(bordersPx, bordersPx, rescaleWidth, rescaleHeight));
+        frame.add(imageLabel);
+
+        frame.setLayout(null);
+        frame.setVisible(true);
+    }
+
+    private ImageIcon getScreenCapture(int rescaleWidth, int rescaleHeight) {
+
+        try {
+            Robot robot = new Robot();
+            BufferedImage fullImage = robot.createScreenCapture(new Rectangle(RunnerUtil.SCREEN_WIDTH, RunnerUtil.SCREEN_HEIGHT));
+            Image image = fullImage.getScaledInstance(rescaleWidth, rescaleHeight, Image.SCALE_FAST);
+            return new ImageIcon(image);
+        } catch (AWTException e) {
+            LOGGER.error("Robot initialization error", e);
+            return null;
+        }
+    }
+
+    private void toggleRunning(Button button) {
+
+        if (cursorMover == null) {
+            CursorMoveListener cursorMoveListener = new CursorMoveListener();
+            TIMER_RUNNER.schedule(cursorMoveListener, 0L, 1000L);
+
+            cursorMover = new CursorMover(RunnerUtil.SCREEN_WIDTH, RunnerUtil.SCREEN_HEIGHT);
+            TIMER_RUNNER.schedule(cursorMover, 1000L, RunnerUtil.SECONDS_BETWEEN_MOVES * 1000L);
+
+            button.setLabel("Stop");
+        }
+        else {
+            TIMER_RUNNER.cancel();
+
+            cursorMover = null;
+
+            button.setLabel("Start");
+        }
+
+    }
+}