| 1 | package be.nikiroo.utils.ui; |
| 2 | |
| 3 | import java.awt.BorderLayout; |
| 4 | import java.awt.event.ActionEvent; |
| 5 | import java.awt.event.ActionListener; |
| 6 | import java.awt.event.KeyAdapter; |
| 7 | import java.awt.event.KeyEvent; |
| 8 | import java.io.IOException; |
| 9 | import java.io.InputStream; |
| 10 | |
| 11 | import javax.swing.ImageIcon; |
| 12 | import javax.swing.JButton; |
| 13 | import javax.swing.JTextField; |
| 14 | import javax.swing.SwingUtilities; |
| 15 | |
| 16 | import be.nikiroo.utils.IOUtils; |
| 17 | |
| 18 | /** |
| 19 | * A generic search/filter bar. |
| 20 | * |
| 21 | * @author niki |
| 22 | */ |
| 23 | public class SearchBar extends ListenerPanel { |
| 24 | static private final long serialVersionUID = 1L; |
| 25 | static private ImageIcon searchIcon; |
| 26 | static private ImageIcon clearIcon; |
| 27 | |
| 28 | private JButton search; |
| 29 | private JTextField text; |
| 30 | private JButton clear; |
| 31 | |
| 32 | private boolean realTime; |
| 33 | |
| 34 | /** |
| 35 | * Create a new {@link SearchBar}. |
| 36 | */ |
| 37 | public SearchBar() { |
| 38 | setLayout(new BorderLayout()); |
| 39 | |
| 40 | // TODO: make an option to change the default setting here: |
| 41 | // (can already be manually toggled by the user) |
| 42 | realTime = true; |
| 43 | |
| 44 | if (searchIcon == null) |
| 45 | searchIcon = getIcon("search-16x16.png"); |
| 46 | if (clearIcon == null) |
| 47 | clearIcon = getIcon("clear-16x16.png"); |
| 48 | |
| 49 | search = new JButton(searchIcon); |
| 50 | if (searchIcon == null) { |
| 51 | search.setText("[s]"); |
| 52 | } |
| 53 | UIUtils.setButtonPressed(search, realTime); |
| 54 | search.addActionListener(new ActionListener() { |
| 55 | @Override |
| 56 | public void actionPerformed(ActionEvent e) { |
| 57 | realTime = !realTime; |
| 58 | UIUtils.setButtonPressed(search, realTime); |
| 59 | text.requestFocus(); |
| 60 | |
| 61 | if (realTime) { |
| 62 | fireActionPerformed(getText()); |
| 63 | } |
| 64 | } |
| 65 | }); |
| 66 | |
| 67 | text = new JTextField(); |
| 68 | text.addKeyListener(new KeyAdapter() { |
| 69 | @Override |
| 70 | public void keyTyped(final KeyEvent e) { |
| 71 | super.keyTyped(e); |
| 72 | SwingUtilities.invokeLater(new Runnable() { |
| 73 | @Override |
| 74 | public void run() { |
| 75 | boolean empty = (text.getText().isEmpty()); |
| 76 | clear.setVisible(!empty); |
| 77 | |
| 78 | if (realTime) { |
| 79 | fireActionPerformed(getText()); |
| 80 | } |
| 81 | } |
| 82 | }); |
| 83 | } |
| 84 | }); |
| 85 | text.addActionListener(new ActionListener() { |
| 86 | @Override |
| 87 | public void actionPerformed(ActionEvent e) { |
| 88 | if (!realTime) { |
| 89 | fireActionPerformed(getText()); |
| 90 | } |
| 91 | } |
| 92 | }); |
| 93 | |
| 94 | clear = new JButton(clearIcon); |
| 95 | if (clearIcon == null) { |
| 96 | clear.setText("(c)"); |
| 97 | } |
| 98 | clear.setBackground(text.getBackground()); |
| 99 | clear.setVisible(false); |
| 100 | clear.addActionListener(new ActionListener() { |
| 101 | @Override |
| 102 | public void actionPerformed(ActionEvent e) { |
| 103 | text.setText(""); |
| 104 | clear.setVisible(false); |
| 105 | text.requestFocus(); |
| 106 | |
| 107 | fireActionPerformed(getText()); |
| 108 | } |
| 109 | }); |
| 110 | |
| 111 | add(search, BorderLayout.WEST); |
| 112 | add(text, BorderLayout.CENTER); |
| 113 | add(clear, BorderLayout.EAST); |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * Return the current text displayed by this {@link SearchBar}, or an empty |
| 118 | * {@link String} if none. |
| 119 | * |
| 120 | * @return the text, cannot be NULL |
| 121 | */ |
| 122 | public String getText() { |
| 123 | // Should usually not be NULL, but not impossible |
| 124 | String text = this.text.getText(); |
| 125 | return text == null ? "" : text; |
| 126 | } |
| 127 | |
| 128 | @Override |
| 129 | public void setEnabled(boolean enabled) { |
| 130 | search.setEnabled(enabled); |
| 131 | clear.setEnabled(enabled); |
| 132 | text.setEnabled(enabled); |
| 133 | super.setEnabled(enabled); |
| 134 | } |
| 135 | |
| 136 | private ImageIcon getIcon(String name) { |
| 137 | InputStream in = IOUtils.openResource(SearchBar.class, name); |
| 138 | if (in != null) { |
| 139 | try { |
| 140 | return new ImageIcon(IOUtils.toByteArray(in)); |
| 141 | } catch (IOException e) { |
| 142 | e.printStackTrace(); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | return null; |
| 147 | } |
| 148 | } |