Moved table UI classes into their own package
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Vhati
parent
ccff62d261
commit
6ca3fad77b
6 changed files with 161 additions and 98 deletions
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package net.vhati.modmanager.ui.table;
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import java.util.ArrayList;
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import java.util.List;
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import javax.swing.table.AbstractTableModel;
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import net.vhati.modmanager.core.ModInfo;
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import net.vhati.modmanager.ui.table.Reorderable;
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public class ChecklistTableModel<T> extends AbstractTableModel implements Reorderable {
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private static final int COLUMN_CHECK = 0;
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private static final int COLUMN_PAYLOAD = 1;
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private static final int DATA_CHECK = 0;
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private static final int DATA_PAYLOAD = 1;
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private String[] columnNames = new String[] {"?", "Name"};
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private Class[] columnTypes = new Class[] {Boolean.class, String.class};
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private List<List<Object>> rowsList = new ArrayList<List<Object>>();
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public void addItem( T o ) {
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insertItem( rowsList.size(), false, o );
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}
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public void insertItem( int row, boolean selected, T o ) {
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int newRowIndex = rowsList.size();
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List<Object> rowData = new ArrayList<Object>();
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rowData.add( new Boolean(selected) );
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rowData.add( o );
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rowsList.add( row, rowData );
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fireTableRowsInserted( row, row );
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}
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public void removeItem( int row ) {
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rowsList.remove( row );
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fireTableRowsDeleted( row, row );
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}
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public void removeAllItems() {
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rowsList.clear();
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fireTableDataChanged();
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}
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@SuppressWarnings("unchecked")
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public T getItem( int row ) {
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return (T)rowsList.get(row).get(DATA_PAYLOAD);
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}
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@Override
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public void reorder( int fromRow, int toRow ) {
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if ( toRow > fromRow ) toRow--;
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List<Object> rowData = rowsList.get( fromRow );
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rowsList.remove( fromRow );
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fireTableRowsDeleted( fromRow, fromRow );
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rowsList.add( toRow, rowData );
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fireTableRowsInserted( toRow, toRow );
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}
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public void setSelected( int row, boolean b ) {
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rowsList.get(row).set( DATA_CHECK, new Boolean(b) );
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fireTableRowsUpdated( row, row );
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}
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@SuppressWarnings("unchecked")
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public boolean isSelected( int row ) {
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return ((Boolean)rowsList.get(row).get(DATA_CHECK)).booleanValue();
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}
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@Override
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public int getColumnCount() {
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return columnNames.length;
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}
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@Override
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public int getRowCount() {
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return rowsList.size();
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}
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@Override
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public Object getValueAt( int row, int column ) {
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if ( column == COLUMN_CHECK ) {
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return rowsList.get(row).get(DATA_CHECK);
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}
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else if ( column == COLUMN_PAYLOAD ) {
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Object o = rowsList.get(row).get(DATA_PAYLOAD);
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return o.toString();
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}
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throw new ArrayIndexOutOfBoundsException();
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}
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@Override
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@SuppressWarnings("unchecked")
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public void setValueAt( Object o, int row, int column ) {
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if ( column == COLUMN_CHECK ) {
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Boolean bool = (Boolean)o;
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rowsList.get(row).set( DATA_CHECK, bool );
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fireTableRowsUpdated( row, row );
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}
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}
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@Override
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public boolean isCellEditable( int row, int column ) {
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if ( column == COLUMN_CHECK ) return true;
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return false;
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}
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@Override
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public Class getColumnClass( int column ) {
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return columnTypes[column];
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}
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}
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@ -0,0 +1,134 @@
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package net.vhati.modmanager.ui.table;
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import java.awt.BorderLayout;
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import java.awt.Dimension;
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import java.awt.event.MouseAdapter;
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import java.awt.event.MouseEvent;
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import java.util.ArrayList;
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import java.util.List;
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import javax.swing.DropMode;
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import javax.swing.ListSelectionModel;
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import javax.swing.JPanel;
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import javax.swing.JScrollPane;
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import javax.swing.JTable;
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import net.vhati.modmanager.core.ModFileInfo;
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import net.vhati.modmanager.ui.table.ChecklistTableModel;
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import net.vhati.modmanager.ui.table.TableRowTransferHandler;
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public class ChecklistTablePanel<T> extends JPanel {
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protected ChecklistTableModel<T>tableModel;
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protected JTable table;
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public ChecklistTablePanel() {
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super( new BorderLayout() );
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tableModel = new ChecklistTableModel<T>();
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table = new JTable( tableModel );
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table.setFillsViewportHeight( true );
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table.setSelectionMode( ListSelectionModel.SINGLE_SELECTION );
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table.setTableHeader( null );
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table.getColumnModel().getColumn(0).setMinWidth(30);
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table.getColumnModel().getColumn(0).setMaxWidth(30);
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table.getColumnModel().getColumn(0).setPreferredWidth(30);
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JScrollPane scrollPane = new JScrollPane( null, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER );
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scrollPane.setViewportView( table );
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//scrollPane.setColumnHeaderView( null ); // Counterpart to setTableHeader().
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scrollPane.setPreferredSize( new Dimension(Integer.MIN_VALUE, Integer.MIN_VALUE) );
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this.add( scrollPane, BorderLayout.CENTER );
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// Double-click toggles checkboxes.
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table.addMouseListener(new MouseAdapter() {
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int prevRow = -1;
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int streak = 0;
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@Override
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public void mouseClicked( MouseEvent e ) {
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if ( e.getSource() != table ) return;
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int thisRow = table.rowAtPoint( e.getPoint() );
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// Reset on first click and when no longer on that row.
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if ( e.getClickCount() == 1 ) prevRow = -1;
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if ( thisRow != prevRow || thisRow == -1 ) {
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streak = 1;
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prevRow = thisRow;
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return;
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} else {
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streak++;
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}
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if ( streak % 2 != 0 ) return; // Respond only to click pairs.
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// Don't further toggle a multi-clicked checkbox.
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int viewCol = table.columnAtPoint( e.getPoint() );
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int modelCol = table.getColumnModel().getColumn(viewCol).getModelIndex();
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if ( modelCol == 0 ) return;
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int selRow = table.getSelectedRow();
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if ( selRow != -1 ) {
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boolean selected = tableModel.isSelected( selRow );
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tableModel.setSelected( selRow, !selected );
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}
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}
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});
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table.setTransferHandler( new TableRowTransferHandler( table ) );
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table.setDropMode( DropMode.INSERT ); // Drop between rows, not on them.
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table.setDragEnabled( true );
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}
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public void clear() {
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tableModel.removeAllItems();
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}
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public List<T> getAllItems() {
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List<T> results = new ArrayList<T>();
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for ( int i=0; i < tableModel.getRowCount(); i++ ) {
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results.add( tableModel.getItem(i) );
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}
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return results;
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}
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public List<T> getSelectedItems() {
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List<T> results = new ArrayList<T>();
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for ( int i=0; i < tableModel.getRowCount(); i++ ) {
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if ( tableModel.isSelected(i) ) {
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results.add( tableModel.getItem(i) );
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}
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}
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return results;
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}
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public void toggleAllItemSelection() {
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int selectedCount = 0;
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for ( int i = tableModel.getRowCount()-1; i >= 0; i-- ) {
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if ( tableModel.isSelected(i) ) selectedCount++;
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}
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boolean b = ( selectedCount != tableModel.getRowCount() );
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for ( int i = tableModel.getRowCount()-1; i >= 0; i-- ) {
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tableModel.setSelected( i, b );
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}
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}
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public ChecklistTableModel<T> getTableModel() {
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return tableModel;
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}
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public JTable getTable() {
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return table;
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}
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}
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@ -0,0 +1,9 @@
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package net.vhati.modmanager.ui.table;
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public interface Reorderable {
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/**
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* Moves an element at fromIndex to toIndex.
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*/
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public void reorder( int fromIndex, int toIndex );
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}
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@ -0,0 +1,131 @@
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package net.vhati.modmanager.ui.table;
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import java.awt.Cursor;
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import java.awt.datatransfer.DataFlavor;
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import java.awt.datatransfer.Transferable;
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import java.awt.dnd.DragSource;
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import javax.swing.JComponent;
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import javax.swing.JTable;
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import javax.swing.TransferHandler;
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import net.vhati.modmanager.ui.table.Reorderable;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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/**
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* Allows drag and drop reordering of JTable rows.
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*
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* Its TableModel must implement the Reorderable interface.
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*/
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public class TableRowTransferHandler extends TransferHandler {
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private static final Logger log = LogManager.getLogger(TableRowTransferHandler.class);
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private DataFlavor localIntegerFlavor = null;
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private JTable table = null;
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public TableRowTransferHandler( JTable table ) {
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super();
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if ( table.getModel() instanceof Reorderable == false ) {
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throw new IllegalArgumentException( "The tableModel doesn't implement Reorderable." );
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}
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this.table = table;
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try {
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localIntegerFlavor = new DataFlavor( DataFlavor.javaJVMLocalObjectMimeType + ";class=\""+ Integer.class.getName() +"\"" );
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}
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catch ( ClassNotFoundException e ) {
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log.error( e );
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}
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}
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@Override
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protected Transferable createTransferable( JComponent c ) {
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assert ( c == table );
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int row = table.getSelectedRow();
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return new IntegerTransferrable( new Integer(row) );
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}
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@Override
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public boolean canImport( TransferHandler.TransferSupport ts ) {
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boolean b = ( ts.getComponent() == table && ts.isDrop() && ts.isDataFlavorSupported(localIntegerFlavor) );
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table.setCursor( b ? DragSource.DefaultMoveDrop : DragSource.DefaultMoveNoDrop );
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return b;
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}
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@Override
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public int getSourceActions( JComponent comp ) {
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return TransferHandler.MOVE;
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}
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@Override
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@SuppressWarnings("Unchecked")
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public boolean importData( TransferHandler.TransferSupport ts ) {
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if ( !canImport(ts) ) return false;
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JTable target = (JTable)ts.getComponent();
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JTable.DropLocation dl = (JTable.DropLocation)ts.getDropLocation();
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int dropRow = dl.getRow();
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int rowCount = table.getModel().getRowCount();
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if ( dropRow < 0 || dropRow > rowCount ) dropRow = rowCount;
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target.setCursor( Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR) );
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try {
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Integer draggedRow = (Integer)ts.getTransferable().getTransferData(localIntegerFlavor);
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if ( draggedRow != -1 && draggedRow != dropRow ) {
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((Reorderable)table.getModel()).reorder( draggedRow, dropRow );
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if ( dropRow > draggedRow ) dropRow--;
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target.getSelectionModel().addSelectionInterval( dropRow, dropRow );
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return true;
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}
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}
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catch ( Exception e ) {
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log.error( e );
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}
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return false;
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}
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@Override
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protected void exportDone( JComponent source, Transferable data, int action ) {
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if ( action == TransferHandler.MOVE || action == TransferHandler.NONE ) {
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table.setCursor( Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR) );
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}
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}
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/**
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* Drag and drop Integer data, constructed with a raw object
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* from a drag source, to be transformed into a flavor
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* suitable for the drop target.
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*/
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private class IntegerTransferrable implements Transferable {
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private Integer data;
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public IntegerTransferrable( Integer data ) {
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this.data = data;
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}
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@Override
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public Object getTransferData( DataFlavor flavor ) {
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if ( flavor.equals( localIntegerFlavor ) ) {
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return data;
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}
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return null;
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}
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@Override
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public DataFlavor[] getTransferDataFlavors() {
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return new DataFlavor[] {localIntegerFlavor};
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}
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@Override
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public boolean isDataFlavorSupported( DataFlavor flavor ) {
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return flavor.equals( localIntegerFlavor );
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}
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}
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}
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