src/main/java/eu/svjatoslav/instantlauncher/menu/Menu.java

   1 package eu.svjatoslav.instantlauncher.menu;
   2
   3 import java.awt.Color;
   4 import java.awt.Dimension;
   5 import java.awt.event.MouseEvent;
   6 import java.awt.event.MouseListener;
   7 import java.io.File;
   8 import java.util.Arrays;
   9 import java.util.Comparator;
  10 import java.util.HashSet;
  11 import java.util.Set;
  12
  13 import javax.swing.Box;
  14 import javax.swing.BoxLayout;
  15 import javax.swing.JButton;
  16 import javax.swing.JPanel;
  17 import javax.swing.SwingConstants;
  18 import javax.swing.border.EmptyBorder;
  19
  20 import eu.svjatoslav.commons.gui.dialog.ExceptionDialog;
  21 import eu.svjatoslav.instantlauncher.Utils;
  22
  23 public class Menu {
  24
  25         public static class ButtonMouseListener implements MouseListener {
  26
  27                 JButton parentButton;
  28                 Menu parentMenu;
  29                 File file;
  30
  31                 public ButtonMouseListener(final JButton button, final Menu parentMenu, final File file) {
  32                         parentButton = button;
  33                         this.parentMenu = parentMenu;
  34                         this.file = file;
  35                 }
  36
  37                 @Override
  38                 public void mouseClicked(final MouseEvent e) {
  39                         try {
  40
  41                                 if (e.getButton() == 1)
  42                                         parentMenu.menuItemSelected(file);
  43                                 if (e.getButton() == 2)
  44                                         parentMenu.menuItemSelectedAlternative2(file);
  45                                 if (e.getButton() == 3)
  46                                         parentMenu.menuItemSelectedAlternative(file);
  47                         } catch (final Exception ex) {
  48                                 new ExceptionDialog(ex);
  49                         }
  50                 }
  51
  52                 @Override
  53                 public void mouseEntered(final MouseEvent e) {
  54                         try {
  55                                 if (parentButton != parentMenu.getSelectedButton()) {
  56
  57                                         if (parentMenu.getSelectedButton() != null)
  58                                                 parentMenu.getSelectedButton().setBackground(getFileColor(parentMenu.getSelectedFile(), false));
  59
  60                                         parentMenu.setSelected(parentButton, file);
  61                                         parentButton.setBackground(getFileColor(file, true));
  62
  63                                         parentMenu.menuItemHighlighted(file);
  64                                 }
  65                         } catch (final Exception ex) {
  66                                 new ExceptionDialog(ex);
  67                         }
  68                 }
  69
  70                 @Override
  71                 public void mouseExited(final MouseEvent e) {
  72                 }
  73
  74                 @Override
  75                 public void mousePressed(final MouseEvent e) {
  76                 }
  77
  78                 @Override
  79                 public void mouseReleased(final MouseEvent e) {
  80                 }
  81
  82         }
  83
  84         public static final Color BUTTON_BG_DIRECTORY = new Color(0, 0, 60);
  85
  86         public static final Color BUTTON_BG_DIRECTORY_SELECTED = new Color(0, 0, 100);
  87         public static final Color BUTTON_BG_LINK = new Color(60, 60, 0);
  88
  89         public static final Color BUTTON_BG_LINK_SELECTED = new Color(100, 100, 0);
  90         public static final Color BUTTON_BG_EXECUTABLE_FILE = new Color(60, 0, 0);
  91
  92         public static final Color BUTTON_BG_EXECUTABLE_FILE_SELECTED = new Color(100, 0, 0);
  93         public static final Color BUTTON_BG_NONEXECUTABLE_FILE = new Color(0, 60, 0);
  94
  95         public static final Color BUTTON_BG_NONEXECUTABLE_FILE_SELECTED = new Color(0, 100, 0);
  96         public static final Dimension SIZE_BUTTON = new Dimension(200, 30);
  97
  98         public static final Dimension SIZE_MENU_PANEL = new Dimension(210, 900);
  99
 100         /**
 101          * <pre>
 102          * Assign specific colors to:
 103          *    Directory
 104          *    Executable file
 105          *    Non executable file
 106          * </pre>
 107          */
 108         public static Color getFileColor(final File file, final boolean selected) {
 109                 if (file.isDirectory())
 110                         if (selected)
 111                                 return BUTTON_BG_DIRECTORY_SELECTED;
 112                         else
 113                                 return BUTTON_BG_DIRECTORY;
 114
 115                 if (file.isFile())
 116                         if (file.canExecute()) {
 117                                 if (selected)
 118                                         return BUTTON_BG_EXECUTABLE_FILE_SELECTED;
 119                                 else
 120                                         return BUTTON_BG_EXECUTABLE_FILE;
 121                         } else if (selected)
 122                                 return BUTTON_BG_NONEXECUTABLE_FILE_SELECTED;
 123                         else
 124                                 return BUTTON_BG_NONEXECUTABLE_FILE;
 125
 126                 if (selected)
 127                         return BUTTON_BG_LINK_SELECTED;
 128                 else
 129                         return BUTTON_BG_LINK;
 130         }
 131
 132         private JPanel menuPanel;
 133
 134         public JButton selectedButton;
 135
 136         public File selectedFile;;
 137
 138         private final Set<MenuListener> menuListeners = new HashSet<MenuListener>();
 139
 140         public Menu(final File directory) {
 141                 buildContentPanel(directory);
 142         }
 143
 144         public void addMenuListener(final MenuListener menuListener) {
 145                 menuListeners.add(menuListener);
 146         }
 147
 148         public JButton buildButton(final File file) {
 149                 JButton button;
 150                 if (file.isDirectory())
 151                         button = new JButton("[ " + file.getName() + " ]");
 152                 else
 153                         button = new JButton(file.getName());
 154
 155                 button.setBackground(getFileColor(file, false));
 156                 button.setForeground(new Color(255, 255, 255));
 157
 158                 button.setBorder(new EmptyBorder(5, 10, 5, 10));
 159
 160                 final Menu.ButtonMouseListener mouseListener = new ButtonMouseListener(button, this, file);
 161                 button.addMouseListener(mouseListener);
 162
 163                 button.setHorizontalTextPosition(SwingConstants.CENTER);
 164
 165                 // set button size
 166                 Utils.setComponentSize(button, SIZE_BUTTON);
 167
 168                 return button;
 169         }
 170
 171         private void buildContentPanel(final File directory) {
 172                 menuPanel = new JPanel();
 173
 174                 Utils.setComponentSize(menuPanel, SIZE_MENU_PANEL);
 175
 176                 final BoxLayout layout = new BoxLayout(menuPanel, BoxLayout.Y_AXIS);
 177                 menuPanel.setLayout(layout);
 178                 menuPanel.setBackground(Color.BLACK);
 179
 180                 final File[] listFiles = directory.listFiles();
 181
 182                 // Sort files by name
 183                 Arrays.sort(listFiles, new Comparator<File>() {
 184                         @Override
 185                         public int compare(final File f1, final File f2) {
 186
 187                                 // directories come before files
 188                                 if (f1.isFile() && f2.isDirectory())
 189                                         return 1;
 190                                 if (f2.isFile() && f1.isDirectory())
 191                                         return -1;
 192
 193                                 // order by file name
 194                                 return f1.getName().toUpperCase().compareTo(f2.getName().toUpperCase());
 195                         }
 196                 });
 197
 198                 // add files to the panel
 199                 for (final File file : listFiles)
 200                         // ignore hidden files
 201                         if (!file.getName().startsWith(".")) {
 202                                 menuPanel.add(Box.createVerticalStrut(10));
 203                                 menuPanel.add(buildButton(file));
 204                         }
 205         }
 206
 207         public JPanel getMenuPanel() {
 208                 return menuPanel;
 209         }
 210
 211         public JButton getSelectedButton() {
 212                 return selectedButton;
 213         }
 214
 215         public File getSelectedFile() {
 216                 return selectedFile;
 217         }
 218
 219         public void menuItemHighlighted(final File chosenFile) {
 220                 for (final MenuListener menuListener : menuListeners)
 221                         menuListener.menuItemHighlighted(this, chosenFile);
 222         }
 223
 224         public void menuItemSelected(final File chosenFile) {
 225                 for (final MenuListener menuListener : menuListeners)
 226                         menuListener.menuItemSelected(this, chosenFile);
 227         }
 228
 229         public void menuItemSelectedAlternative(final File chosenFile) {
 230                 for (final MenuListener menuListener : menuListeners)
 231                         menuListener.menuItemSelectedAlternative(this, chosenFile);
 232         }
 233
 234         public void menuItemSelectedAlternative2(final File chosenFile) {
 235                 for (final MenuListener menuListener : menuListeners)
 236                         menuListener.menuItemSelectedAlternative2(this, chosenFile);
 237         }
 238
 239         public void setSelected(final JButton selectedButton, final File selectedFile) {
 240                 this.selectedButton = selectedButton;
 241                 this.selectedFile = selectedFile;
 242         }
 243
 244 }