package timeflow.app.ui.filter;
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import timeflow.util.*;
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import javax.swing.*;
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import timeflow.data.db.*;
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import timeflow.data.db.filter.*;
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import timeflow.model.ModelPanel;
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import java.awt.*;
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import java.awt.event.*;
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public class FilterCategoryPanel extends FilterDefinitionPanel
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{
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public JList dataList=new JList();
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Field field;
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public FilterCategoryPanel(final Field field, final ModelPanel parent)
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{
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this(field.getName(), field, parent);
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}
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public FilterCategoryPanel(String title, final Field field, final ModelPanel parent)
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{
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this.field=field;
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setLayout(new BorderLayout());
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setBackground(Color.white);
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setBorder(BorderFactory.createEmptyBorder(0,5,0,5));
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add(new FilterTitle(title, field, parent, true), BorderLayout.NORTH);
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JScrollPane scroller=new JScrollPane(dataList);
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scroller.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
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scroller.setBorder(null);
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add(scroller, BorderLayout.CENTER);
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dataList.setForeground(Color.darkGray);
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dataList.setSelectionForeground(Color.black);
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dataList.setSelectionBackground(new Color(220,235,255));
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dataList.setFont(parent.getModel().getDisplay().small());
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scroller.getVerticalScrollBar().setBackground(Color.white);
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// ok, the following is ugly code to insert a new mouselistener
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// that lets the user deselect items when they are clicked.
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// i tried a bunch of stuff but this is all that would work--
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// and searching the web yielded only solutions similar to this.
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// also, there's a weird dance with consuming/not consuming events
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// that is designed to allow a certain kind of multi-selection behavior
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// with the mouse, while letting you scroll through items one at a time
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// with the keyboard. this was the product of a long series of
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// conversations with target users.
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MouseListener[] old = dataList.getMouseListeners();
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for (MouseListener m: old)
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dataList.removeMouseListener(m);
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dataList.addMouseListener(new MouseAdapter()
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{
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public void mousePressed(MouseEvent e)
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{
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if (e.isControlDown() || e.isMetaDown() || e.isShiftDown())
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return;
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final int index = dataList.locationToIndex(e.getPoint());
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if (dataList.isSelectedIndex(index))
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{
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SwingUtilities.invokeLater(new Runnable()
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{
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public void run()
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{
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dataList.removeSelectionInterval(index, index);
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}
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});
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e.consume();
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}
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else
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{
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SwingUtilities.invokeLater(new Runnable()
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{
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public void run()
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{
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dataList.addSelectionInterval(index, index);
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}
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});
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e.consume();
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}
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}
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});
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for (MouseListener m: old)
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dataList.addMouseListener(m);
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dataList.setCellRenderer(new DefaultListCellRenderer() {
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@Override
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public Component getListCellRendererComponent(JList list,
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Object value, int index, boolean isSelected,
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boolean cellHasFocus) {
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Component c=super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
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if (field==parent.getModel().getColorField())
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{
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String text=value.toString();
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int n=text.lastIndexOf('-');
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if (n>1)
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text=text.substring(0,n-1);
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c.setForeground(parent.getModel().getDisplay().makeColor(text));
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}
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return c;
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}});
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}
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public void setData(Bag<String> data)
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{
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dataList.removeAll();
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java.util.List<String> items=data.list();
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String[] s=(String[])items.toArray(new String[0]);
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for (int i=0; i<s.length; i++)
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{
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int num=data.num(s[i]);
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if (s[i]==null || s[i].length()==0)
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s[i]="(missing)";
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s[i]+=" - "+num;
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}
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dataList.setListData(s);
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}
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public Dimension getPreferredSize()
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{
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return new Dimension(200,200);
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}
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@Override
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public ActFilter defineFilter() {
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Object[] o=dataList.getSelectedValues();
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if (o==null || o.length==0)
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return null;
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int n=o.length;
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String[] s=new String[n];
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for (int i=0; i<n; i++)
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{
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String w=(String)o[i];
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int m=w.lastIndexOf('-');
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s[i]=w.substring(0, m-1);
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if ("(missing)".equals(s[i]))
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s[i]="";
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}
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if (s.length==1)
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return new FieldValueFilter(field, s[0]);
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FieldValueSetFilter f=new FieldValueSetFilter(field);
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for (int i=0; i<s.length; i++)
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f.addValue(s[i]);
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return f;
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}
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@Override
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public void clearFilter() {
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dataList.clearSelection();
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}
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}
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