src/com/googlecode/lanterna/gui2/dialogs/ActionListDialog.java

   1 package com.googlecode.lanterna.gui2.dialogs;
   2
   3 import com.googlecode.lanterna.TerminalSize;
   4 import com.googlecode.lanterna.gui2.*;
   5
   6 import java.util.List;
   7
   8 /**
   9  * Dialog containing a multiple item action list box
  10  * @author Martin
  11  */
  12 public class ActionListDialog extends DialogWindow {
  13
  14     ActionListDialog(
  15             String title,
  16             String description,
  17             TerminalSize actionListPreferredSize,
  18             boolean canCancel,
  19             List<Runnable> actions) {
  20
  21         super(title);
  22         if(actions.isEmpty()) {
  23             throw new IllegalStateException("ActionListDialog needs at least one item");
  24         }
  25
  26         ActionListBox listBox = new ActionListBox(actionListPreferredSize);
  27         for(final Runnable action: actions) {
  28             listBox.addItem(action.toString(), new Runnable() {
  29                 @Override
  30                 public void run() {
  31                     action.run();
  32                     close();
  33                 }
  34             });
  35         }
  36
  37         Panel mainPanel = new Panel();
  38         mainPanel.setLayoutManager(
  39                 new GridLayout(1)
  40                         .setLeftMarginSize(1)
  41                         .setRightMarginSize(1));
  42         if(description != null) {
  43             mainPanel.addComponent(new Label(description));
  44             mainPanel.addComponent(new EmptySpace(TerminalSize.ONE));
  45         }
  46         listBox.setLayoutData(
  47                 GridLayout.createLayoutData(
  48                         GridLayout.Alignment.FILL,
  49                         GridLayout.Alignment.CENTER,
  50                         true,
  51                         false))
  52                 .addTo(mainPanel);
  53         mainPanel.addComponent(new EmptySpace(TerminalSize.ONE));
  54
  55         if(canCancel) {
  56             Panel buttonPanel = new Panel();
  57             buttonPanel.setLayoutManager(new GridLayout(2).setHorizontalSpacing(1));
  58             buttonPanel.addComponent(new Button(LocalizedString.Cancel.toString(), new Runnable() {
  59                 @Override
  60                 public void run() {
  61                     onCancel();
  62                 }
  63             }).setLayoutData(GridLayout.createLayoutData(GridLayout.Alignment.CENTER, GridLayout.Alignment.CENTER, true, false)));
  64             buttonPanel.setLayoutData(
  65                     GridLayout.createLayoutData(
  66                             GridLayout.Alignment.END,
  67                             GridLayout.Alignment.CENTER,
  68                             false,
  69                             false))
  70                     .addTo(mainPanel);
  71         }
  72         setComponent(mainPanel);
  73     }
  74
  75     private void onCancel() {
  76         close();
  77     }
  78
  79     /**
  80      * Helper method for immediately displaying a {@code ActionListDialog}, the method will return when the dialog is
  81      * closed
  82      * @param textGUI Text GUI the dialog should be added to
  83      * @param title Title of the dialog
  84      * @param description Description of the dialog
  85      * @param items Items in the {@code ActionListBox}, the label will be taken from each {@code Runnable} by calling
  86      *              {@code toString()} on each one
  87      */
  88     public static void showDialog(WindowBasedTextGUI textGUI, String title, String description, Runnable... items) {
  89         ActionListDialog actionListDialog = new ActionListDialogBuilder()
  90                 .setTitle(title)
  91                 .setDescription(description)
  92                 .addActions(items)
  93                 .build();
  94         actionListDialog.showDialog(textGUI);
  95     }
  96 }