gameexplorer: added gui layout

src/main/java/de/tims/gameexplorer/GameExplorer.java

@@ -1,33 +1,104 @@
 package de.tims.gameexplorer;
 
+import java.awt.*;
 import javax.swing.*;
 
 public class GameExplorer {
 	
 	private JFrame frame;
 	private JPanel explorerPanel;
+	private JPanel border1;
+	private JPanel border2;
+	private JPanel border3;
+	private JPanel border4;
+	private JPanel border5;
 	private JButton fleetstormBtn;
 	private JButton fourwinsBtn;
 	private JButton tictactoeBtn;
 	private JButton leaderboardBtn;
+	private Dimension minSize;
+	private Dimension btnSize;
+	private GridBagConstraints gbc;
 	
 	public GameExplorer() {
 		frame = new JFrame("1000 infomagische Spiele");
+	
+		minSize = new Dimension(400, 300);
+		btnSize = new Dimension(160, 40);
+		gbc = new GridBagConstraints();
 		
 		explorerPanel = new JPanel();
+		explorerPanel.setLayout(new GridBagLayout());
 		
 		fleetstormBtn = new JButton("Schiffe versenken");
+		fleetstormBtn.setPreferredSize(btnSize);
 		fourwinsBtn = new JButton("Vier gewinnt");
+		fourwinsBtn.setPreferredSize(btnSize);
 		tictactoeBtn = new JButton("TicTacToe");
+		tictactoeBtn.setPreferredSize(btnSize);
 		leaderboardBtn = new JButton("Leaderboard");
+		leaderboardBtn.setPreferredSize(btnSize);
+		
+		border1 = new JPanel();
+		border1.setOpaque(false);
+		border2 = new JPanel();
+		border2.setOpaque(false);
+		border3 = new JPanel();
+		border3.setOpaque(false);
+		border4 = new JPanel();
+		border4.setOpaque(false);
+		border5 = new JPanel();
+		border5.setOpaque(false);
+		
+		gbc.gridx = 0;
+		gbc.gridy = 0;
+		gbc.weighty = 0.2;
+		explorerPanel.add(border1, gbc);
+		
+		gbc.gridx = 0;
+		gbc.gridy = 1;
+		gbc.weighty = 0.0;
+		explorerPanel.add(fleetstormBtn, gbc);
+		
+		gbc.gridx = 0;
+		gbc.gridy = 2;
+		gbc.weighty = 0.2;
+		explorerPanel.add(border2, gbc);
 		
-		explorerPanel.add(fleetstormBtn);		
-		explorerPanel.add(fourwinsBtn);	
-		explorerPanel.add(tictactoeBtn);
-		explorerPanel.add(leaderboardBtn);
+		gbc.gridx = 0;
+		gbc.gridy = 3;
+		gbc.weighty = 0.0;
+		explorerPanel.add(fourwinsBtn, gbc);
+		
+		gbc.gridx = 0;
+		gbc.gridy = 4;
+		gbc.weighty = 0.2;
+		explorerPanel.add(border3, gbc);
+		
+		gbc.gridx = 0;
+		gbc.gridy = 5;
+		gbc.weighty = 0.0;
+		explorerPanel.add(tictactoeBtn, gbc);
+		
+		gbc.gridx = 0;
+		gbc.gridy = 6;
+		gbc.weighty = 0.2;
+		explorerPanel.add(border4, gbc);
+		
+		gbc.gridx = 0;
+		gbc.gridy = 7;
+		gbc.weighty = 0.0;
+		explorerPanel.add(leaderboardBtn, gbc);
 
+		gbc.gridx = 0;
+		gbc.gridy = 8;
+		gbc.weighty = 0.2;
+		explorerPanel.add(border5, gbc);
+		
 		frame.add(explorerPanel);
 		
+		frame.setMinimumSize(minSize);
+		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 		frame.setSize(640, 480);
 		frame.setResizable(true);
 		frame.setVisible(true);