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< > BotCompany Repo | #1012958 // AutoComboBox2 - with flexible entry maker

JavaX fragment (include)

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sclass AutoComboBox2 extends JComboBox<Object> {
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  F1<S, Collection<S>> entryMaker;
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  *() { this(null); }
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  *(F1<S, Collection<S>> *entryMaker) {
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    setSelectedIndex(-1);
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    setEditable(true);
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    JTextField text = cast this.getEditor().getEditorComponent();
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    text.setFocusable(true);
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    text.addKeyListener(new KeyAdapter {
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      public void /*keyPressed*/keyReleased(KeyEvent key) {
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        if (key.getKeyCode() == KeyEvent.VK_ENTER) ret;
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        if (key.getKeyCode() == KeyEvent.VK_ESCAPE) { hidePopup(); ret; }
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        if (key.getKeyCode() == KeyEvent.VK_TAB /*&& key.getModifiers() == 0*/) {
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          _print("Have tab event (modifiers=" + key.getModifiers() + ")");
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          if ((key.getModifiers() & ActionEvent.SHIFT_MASK) == 0 && isPopupVisible()) {
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            setSelectedIndex(0); // accept item
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            hidePopup();
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          } else // standard tab behavior
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            swing_standardTabBehavior(key);
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          ret;
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        }
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        JTextField tf = cast getEditor().getEditorComponent();
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        if (tf.getCaretPosition() != l(tf.getText())) ret;
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        String text = tf.getText();
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        Vector list = new Vector(getSuggestions(text));
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        if (nempty(list)) {
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          setModel(new DefaultComboBoxModel(list));
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          setSelectedIndex(-1);
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          tf.setText(text); // necessary?
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          showPopup();
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        } else
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          hidePopup();
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      }
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    });
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    text.setFocusTraversalKeysEnabled(false);
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  }
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  Collection<S> getSuggestions(S text) {
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    ret callF(entryMaker, text);
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  }
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}

Author comment

Began life as a copy of #1007529

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Snippet ID: #1012958
Snippet name: AutoComboBox2 - with flexible entry maker
Eternal ID of this version: #1012958/8
Text MD5: 84e69f874882bde08014c5592b6a2edd
Author: stefan
Category: javax / gui
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2017-12-18 22:11:56
Source code size: 1635 bytes / 50 lines
Pitched / IR pitched: No / No
Views / Downloads: 444 / 1028
Version history: 7 change(s)
Referenced in: [show references]