BreakpointModel.java

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package org.netbeans.modules.ruby.debugger.breakpoints;

import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import org.netbeans.spi.viewmodel.ModelEvent;
import org.netbeans.spi.viewmodel.ModelListener;
import org.netbeans.spi.viewmodel.NodeModel;
import org.netbeans.spi.viewmodel.UnknownTypeException;

public final class BreakpointModel implements NodeModel {
    
    public static final String BREAKPOINT =
        "org/netbeans/modules/debugger/resources/breakpointsView/NonLineBreakpoint"; // NOI18N
    public static final String DISABLED_BREAKPOINT =
        "org/netbeans/modules/debugger/resources/breakpointsView/DisabledNonLineBreakpoint"; // NOI18N
    public static final String LINE_BREAKPOINT =
        "org/netbeans/modules/debugger/resources/breakpointsView/Breakpoint"; // NOI18N
    public static final String DISABLED_LINE_BREAKPOINT =
        "org/netbeans/modules/debugger/resources/breakpointsView/DisabledBreakpoint"; // NOI18N

    private List<ModelListener> listeners = new CopyOnWriteArrayList<ModelListener>();
    
    // NodeModel implementation ................................................
    
    public String getDisplayName(Object node) throws UnknownTypeException {
        if (node instanceof RubyLineBreakpoint) {
            RubyLineBreakpoint breakpoint = (RubyLineBreakpoint) node;
            return breakpoint.getFileObject().getNameExt() + ':' +
                    breakpoint.getLineNumber();
        } else if (node instanceof RubyExceptionBreakpoint) {
            RubyExceptionBreakpoint breakpoint = (RubyExceptionBreakpoint) node;
            return breakpoint.getException();
        }
        throw new UnknownTypeException(node);
    }
    
    public String getIconBase(Object node) throws UnknownTypeException {
        if (node instanceof RubyLineBreakpoint) {
            if (!((RubyBreakpoint) node).isEnabled()) {
                return DISABLED_LINE_BREAKPOINT;
            }
            return LINE_BREAKPOINT;
        } else if (node instanceof RubyExceptionBreakpoint) {
            if (!((RubyBreakpoint) node).isEnabled()) {
                return DISABLED_BREAKPOINT;
            }
            return BREAKPOINT;
        }
        throw new UnknownTypeException(node);
    }
    
    public String getShortDescription(Object node)
            throws UnknownTypeException {
        if (node instanceof RubyLineBreakpoint) {
            RubyLineBreakpoint breakpoint = (RubyLineBreakpoint) node;
            return breakpoint.getLine().getDisplayName();
        } else if (node instanceof RubyExceptionBreakpoint) {
            RubyExceptionBreakpoint breakpoint = (RubyExceptionBreakpoint) node;
            return breakpoint.getException();
        }
        throw new UnknownTypeException(node);
    }
    
    public void addModelListener(ModelListener l) {
        listeners.add(l);
    }
    
    public void removeModelListener(ModelListener l) {
        listeners.remove(l);
    }
    
    public void fireChanges() {
        for (ModelListener ml : listeners) {
            ml.modelChanged(new ModelEvent.TreeChanged(this));
        }
    }
    
}