Ignore:
Timestamp:
2003-05-27T15:57:37+12:00 (21 years ago)
Author:
kjdon
Message:

re-tabbed the code for java

File:
1 edited

Legend:

Unmodified
Added
Removed

  • trunk/gli/src/org/greenstone/gatherer/checklist/CheckList.java

    r4293 r4366  
    6666// ####################################################################################
    6767public class CheckList
    68     extends JList {
    69     /** The border used when a list row is not in focus. */
    70     protected static Border noFocusBorder = new EmptyBorder(1, 1, 1, 1);
    71     /** Constructor. */
    72     public CheckList() {
    73           super();
    74           setCellRenderer(new CellRenderer());
    75           setModel(new DefaultListModel());
    76           setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    77           addMouseListener(new CheckListListener());
    78     }
    79     /** Constructor.
     68    extends JList {
     69    /** The border used when a list row is not in focus. */
     70    protected static Border noFocusBorder = new EmptyBorder(1, 1, 1, 1);
     71    /** Constructor. */
     72    public CheckList() {
     73    super();
     74    setCellRenderer(new CellRenderer());
     75    setModel(new DefaultListModel());
     76    setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
     77    addMouseListener(new CheckListListener());
     78    }
     79    /** Constructor.
    8080      * @param list_data An <strong>ArrayList</strong> of entries for this checklist.
    8181      * @see org.greenstone.gatherer.checklist.CheckList.Entry
    8282      */
    83     public CheckList(ArrayList list_data) {
    84           super();
    85           // Create a new model.
    86           DefaultListModel model = new DefaultListModel();
    87           for(int i = 0; i < list_data.size(); i++) {
    88                 Entry entry = new Entry(list_data.get(i));
    89                 String name = entry.toString();
    90                 int index = 0;
    91                 boolean found = false;
    92                 while(index < model.size() && !found) {
    93                      Object sibling = model.getElementAt(index);
    94                      if(name.compareTo(sibling.toString()) <= 0) {
    95                           model.add(index, entry);
    96                           found = true;
    97                      }
    98                      index++;
    99                 }
    100                 if(!found) {
    101                      model.addElement(entry);
    102                 }
    103           }
    104           setModel(model);
    105           setCellRenderer(new CellRenderer());
    106           addMouseListener(new CheckListListener());
    107           setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    108     }
    109 
    110     /** Constructor. */
    111     public CheckList(ListModel data_model) {
    112           super(data_model);
    113           setCellRenderer(new CellRenderer());
    114           addMouseListener(new CheckListListener());
    115           setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    116     }
    117 
    118     public void addEntry(Entry entry) {
    119           DefaultListModel model = (DefaultListModel) getModel();
    120           String name = entry.toString();
    121           int index = 0;
    122           boolean found = false;
    123           while(index < model.size() && !found) {
    124                 Object sibling = model.getElementAt(index);
    125                 if(name.compareTo(sibling.toString()) <= 0) {
    126                      model.add(index, entry);
    127                      found = true;
    128                 }
    129                 index++;
    130                 sibling = null;
    131           }
    132           if(!found) {
    133                 model.addElement(entry);
    134           }       
    135           name = null;
    136           model = null;
    137     }
    138 
    139     public Entry get(int index) {
    140           DefaultListModel model = (DefaultListModel) getModel();
    141           return (Entry) model.get(index);
    142     }
    143 
    144     /** Retrieve the currently ticked entries from this list.
     83    public CheckList(ArrayList list_data) {
     84    super();
     85    // Create a new model.
     86    DefaultListModel model = new DefaultListModel();
     87    for(int i = 0; i < list_data.size(); i++) {
     88        Entry entry = new Entry(list_data.get(i));
     89        String name = entry.toString();
     90        int index = 0;
     91        boolean found = false;
     92        while(index < model.size() && !found) {
     93        Object sibling = model.getElementAt(index);
     94        if(name.compareTo(sibling.toString()) <= 0) {
     95            model.add(index, entry);
     96            found = true;
     97        }
     98        index++;
     99        }
     100        if(!found) {
     101        model.addElement(entry);
     102        }
     103    }
     104    setModel(model);
     105    setCellRenderer(new CellRenderer());
     106    addMouseListener(new CheckListListener());
     107    setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
     108    }
     109
     110    /** Constructor. */
     111    public CheckList(ListModel data_model) {
     112    super(data_model);
     113    setCellRenderer(new CellRenderer());
     114    addMouseListener(new CheckListListener());
     115    setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
     116    }
     117
     118    public void addEntry(Entry entry) {
     119    DefaultListModel model = (DefaultListModel) getModel();
     120    String name = entry.toString();
     121    int index = 0;
     122    boolean found = false;
     123    while(index < model.size() && !found) {
     124        Object sibling = model.getElementAt(index);
     125        if(name.compareTo(sibling.toString()) <= 0) {
     126        model.add(index, entry);
     127        found = true;
     128        }
     129        index++;
     130        sibling = null;
     131    }
     132    if(!found) {
     133        model.addElement(entry);
     134    }         
     135    name = null;
     136    model = null;
     137    }
     138
     139    public Entry get(int index) {
     140    DefaultListModel model = (DefaultListModel) getModel();
     141    return (Entry) model.get(index);
     142    }
     143
     144    /** Retrieve the currently ticked entries from this list.
    145145      * @return An <strong>ArrayList</strong> containing only those entries from the initial list that are checked.
    146146      * @see org.greenstone.gatherer.checklist.CheckList.Entry
    147147      */
    148     public ArrayList getSelected() {
    149           ArrayList result = new ArrayList();
    150           DefaultListModel model = (DefaultListModel) getModel();
    151           int size = model.size();
    152           for(int i = 0; i < size; i++) {
    153                 Entry entry = (Entry) model.get(i);
    154                 if(entry.isSelected()) {
    155                      result.add(entry.getObject());
    156                 }
    157           }
    158           return result;
    159     }
    160 
    161     public boolean isSelected(int index) {
    162           DefaultListModel model = (DefaultListModel) getModel();
    163           Entry entry = (Entry) model.get(index);
    164           return entry.isSelected();
    165     }
    166 
    167     public int getEntryCount() {
    168           return getModel().getSize();
    169     }
    170 
    171     /** Checks the entries in the list whose name appear in the given array.
     148    public ArrayList getSelected() {
     149    ArrayList result = new ArrayList();
     150    DefaultListModel model = (DefaultListModel) getModel();
     151    int size = model.size();
     152    for(int i = 0; i < size; i++) {
     153        Entry entry = (Entry) model.get(i);
     154        if(entry.isSelected()) {
     155        result.add(entry.getObject());
     156        }
     157    }
     158    return result;
     159    }
     160
     161    public boolean isSelected(int index) {
     162    DefaultListModel model = (DefaultListModel) getModel();
     163    Entry entry = (Entry) model.get(index);
     164    return entry.isSelected();
     165    }
     166
     167    public int getEntryCount() {
     168    return getModel().getSize();
     169    }
     170
     171    /** Checks the entries in the list whose name appear in the given array.
    172172      * @param names The name of entries to be checked as a <strong>String[]</strong>.
    173173      * @see org.greenstone.gatherer.checklist.CheckList.Entry
    174174      */
    175     public void setSelected(String names[]) {
    176           DefaultListModel model = (DefaultListModel) getModel();
    177           int size = model.size();
    178           for(int i = 0; i < size; i++) {
    179                 Entry entry = (Entry) model.get(i);
    180                 for(int j = 0; names != null && j < names.length; j++) {
    181                      if(entry.toString().equals(names[j])) {
    182                           entry.setSelected(true);
    183                      }
    184                 }
    185           }       
    186     }
    187     /** A custom list cell renderer for producing rows which contain clickable check boxes. */
    188     protected class CellRenderer
    189           implements ListCellRenderer {
    190           /** Return a component that has been configured to display the specified value. That component's paint method is then called to "render" the cell. If it is necessary to compute the dimensions of a list because the list cells do not have a fixed size, this method is called to generate a component on which getPreferredSize  can be invoked.
    191             * @param list The </strong>JList</strong> we're painting.
    192             * @param value The value returned by list.getModel().getElementAt(index), as an <strong>Object</strong>.
    193             * @param index The cells index as an <i>int</i>.
    194             * @param is_selected <i>true</i> if the specified cell was selected, <i>false</i> otherwise.
    195             * @param cell_has_focus <i>true</i> if and only if the specified cell has the focus.
    196             * @return A <strong>Component</strong> whose paint() method will render the specified value.
     175    public void setSelected(String names[]) {
     176    DefaultListModel model = (DefaultListModel) getModel();
     177    int size = model.size();
     178    for(int i = 0; i < size; i++) {
     179        Entry entry = (Entry) model.get(i);
     180        for(int j = 0; names != null && j < names.length; j++) {
     181        if(entry.toString().equals(names[j])) {
     182            entry.setSelected(true);
     183        }
     184        }
     185    }         
     186    }
     187    /** A custom list cell renderer for producing rows which contain clickable check boxes. */
     188    protected class CellRenderer
     189    implements ListCellRenderer {
     190    /** Return a component that has been configured to display the specified value. That component's paint method is then called to "render" the cell. If it is necessary to compute the dimensions of a list because the list cells do not have a fixed size, this method is called to generate a component on which getPreferredSize  can be invoked.
     191     * @param list The </strong>JList</strong> we're painting.
     192     * @param value The value returned by list.getModel().getElementAt(index), as an <strong>Object</strong>.
     193     * @param index The cells index as an <i>int</i>.
     194     * @param is_selected <i>true</i> if the specified cell was selected, <i>false</i> otherwise.
     195     * @param cell_has_focus <i>true</i> if and only if the specified cell has the focus.
     196     * @return A <strong>Component</strong> whose paint() method will render the specified value.
    197197            */
    198           public Component getListCellRendererComponent(JList list, Object value, int index, boolean is_selected, boolean cell_has_focus) {
    199                 JCheckBox checkbox = (JCheckBox) value;
    200                 checkbox.setBackground(is_selected ? list.getSelectionBackground() : list.getBackground());
    201                 checkbox.setForeground(is_selected ? list.getSelectionForeground() : list.getForeground());
    202                 checkbox.setEnabled(list.isEnabled());
    203                 checkbox.setFont(list.getFont());
    204                 checkbox.setFocusPainted(false);
    205                 checkbox.setBorderPainted(true);
    206                 checkbox.setBorder((is_selected) ? UIManager.getBorder("List.focusCellHighlightBorder") : noFocusBorder);
    207                 return checkbox;
    208           }
    209     }
    210     /** Listens for clicks apon the checks within the list, and updates as necessary. */
    211     private class CheckListListener
    212           extends MouseAdapter {
    213           private Entry previous_checkbox = null;
    214           /** Called whenever the mouse is clicked over our list. We find the nearest checkbox and change its state.
    215             * @param e A <strong>MouseEvent</strong> containing everything you ever wanted to know about the mouse event but were afraid to ask.
    216             */
    217           public void mousePressed(MouseEvent e) {
    218                 JList list = (JList) e.getSource();
    219                 int index = list.locationToIndex(e.getPoint());
    220                 Entry checkbox = (Entry)list.getModel().getElementAt(index);
     198    public Component getListCellRendererComponent(JList list, Object value, int index, boolean is_selected, boolean cell_has_focus) {
     199        JCheckBox checkbox = (JCheckBox) value;
     200        checkbox.setBackground(is_selected ? list.getSelectionBackground() : list.getBackground());
     201        checkbox.setForeground(is_selected ? list.getSelectionForeground() : list.getForeground());
     202        checkbox.setEnabled(list.isEnabled());
     203        checkbox.setFont(list.getFont());
     204        checkbox.setFocusPainted(false);
     205        checkbox.setBorderPainted(true);
     206        checkbox.setBorder((is_selected) ? UIManager.getBorder("List.focusCellHighlightBorder") : noFocusBorder);
     207        return checkbox;
     208    }
     209    }
     210    /** Listens for clicks apon the checks within the list, and updates as necessary. */
     211    private class CheckListListener
     212    extends MouseAdapter {
     213    private Entry previous_checkbox = null;
     214    /** Called whenever the mouse is clicked over our list. We find the nearest checkbox and change its state.
     215     * @param e A <strong>MouseEvent</strong> containing everything you ever wanted to know about the mouse event but were afraid to ask.
     216     */
     217    public void mousePressed(MouseEvent e) {
     218        JList list = (JList) e.getSource();
     219        int index = list.locationToIndex(e.getPoint());
     220        Entry checkbox = (Entry)list.getModel().getElementAt(index);
    221221                // If this is the same checkbox as was recently selected, change the tick.
    222                 if(list.isSelectedIndex(index) && checkbox == previous_checkbox) {
    223                      if(!checkbox.isFixed()) {
    224                           checkbox.setSelected(!checkbox.isSelected());
    225                      }
    226                      checkbox.grabFocus();
    227                 }
     222        if(list.isSelectedIndex(index) && checkbox == previous_checkbox) {
     223        if(!checkbox.isFixed()) {
     224            checkbox.setSelected(!checkbox.isSelected());
     225        }
     226        checkbox.grabFocus();
     227        }
    228228                // Otherwise the selection has just changed, so select the new checkbox
    229                 else if(list.isSelectedIndex(index)) {
    230                      previous_checkbox = checkbox;
    231                 }
    232                 else {
    233                      previous_checkbox = null;
    234                 }
    235           }
    236     }
     229        else if(list.isSelectedIndex(index)) {
     230        previous_checkbox = checkbox;
     231        }
     232        else {
     233        previous_checkbox = null;
     234        }
     235    }
     236    }
    237237}
    238238
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