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/*******************************************************************************
* Copyright (c) 2008, 2018 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.examples.core.midi.launcher;
import javax.sound.midi.Sequencer;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.debug.core.DebugEvent;
import org.eclipse.debug.core.DebugPlugin;
/**
* Controls some aspect of a MIDI sequencer.
*
* @since 1.0
*/
public abstract class SequencerControl {
/**
* The launch
*/
private MidiLaunch fLaunch;
/**
* Control name
*/
private String fName;
/**
* Constructs a control with the given name.
*/
public SequencerControl(String name, MidiLaunch launch) {
fName = name;
fLaunch = launch;
}
/**
* Returns the launch this control is associated with.
*
* @return MIDI launch
*/
public MidiLaunch getLaunch() {
return fLaunch;
}
/**
* Returns the sequencer associated with this control.
*
* @return associated sequencer
*/
public Sequencer getSequencer() {
return fLaunch.getSequencer();
}
/**
* Returns the name of this control.
*
* @return control name
*/
public String getName() {
return fName;
}
/**
* Returns this controls current value.
*
* @return current value
*/
public abstract String getValue();
/**
* Whether this contol's value can be modified.
*
* @return Whether this contol's value can be modified
*/
public abstract boolean isEditable();
/**
* Returns a status indicating if the given value is
* a valid value for this control to accept.
*
* @param value new value
* @return whether the value is valid
*/
public abstract IStatus validateValue(String value);
/**
* Sets the value of this control to the given value
* and returns a status indicating if the value was
* successfully set.
*
* @param newValue value
* @return whether successful
*/
public abstract IStatus setValue(String newValue);
/**
* Fires a debug event.
*
* @param event debug event to fire
*/
public void fireEvent(DebugEvent event) {
DebugPlugin.getDefault().fireDebugEventSet(new DebugEvent[] {event});
}
@Override
public boolean equals(Object obj) {
if (obj != null) {
if (getClass().equals(obj.getClass())) {
return ((SequencerControl)obj).getSequencer().equals(getSequencer());
}
}
return false;
}
@Override
public int hashCode() {
return getSequencer().hashCode() + getClass().hashCode();
}
}
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