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// Copyright 2014 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.profiler.chart;
import com.google.common.base.Preconditions;
/**
* A bar in a row of a Gantt Chart.
*/
public class ChartBar {
/**
* The start value of the bar. This value has no unit. The interpretation of
* the value is up to the user of the class.
*/
private final long start;
/**
* The stop value of the bar. This value has no unit. The interpretation of
* the value is up to the user of the class.
*/
private final long stop;
/** The type of the bar. */
private final ChartBarType type;
/** Emphasize the bar */
private boolean highlight;
/** The label of the bar. */
private final String label;
/** The chart row this bar belongs to. */
private final ChartRow row;
/**
* Creates a chart bar.
*
* @param row the chart row this bar belongs to
* @param start the start value of the bar
* @param stop the stop value of the bar
* @param type the type of the bar
* @param label the label of the bar
*/
public ChartBar(ChartRow row, long start, long stop, ChartBarType type, boolean highlight,
String label) {
Preconditions.checkNotNull(row);
Preconditions.checkNotNull(type);
Preconditions.checkNotNull(label);
this.row = row;
this.start = start;
this.stop = stop;
this.type = type;
this.highlight = highlight;
this.label = label;
}
/**
* Accepts a {@link ChartVisitor}. Calls {@link ChartVisitor#visit(ChartBar)}.
*
* @param visitor the visitor to accept
*/
public void accept(ChartVisitor visitor) {
visitor.visit(this);
}
public long getStart() {
return start;
}
public long getStop() {
return stop;
}
public long getWidth() {
return stop - start;
}
public ChartBarType getType() {
return type;
}
public boolean getHighlight() {
return highlight;
}
public String getLabel() {
return label;
}
public ChartRow getRow() {
return row;
}
}
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