/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* 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.intellij.vcs.log.graph.impl.print;
import com.intellij.vcs.log.graph.GraphColorManager;
import com.intellij.vcs.log.graph.api.LinearGraph;
import com.intellij.vcs.log.graph.api.elements.GraphEdge;
import com.intellij.vcs.log.graph.api.elements.GraphElement;
import com.intellij.vcs.log.graph.api.elements.GraphNode;
import com.intellij.vcs.log.graph.api.permanent.PermanentGraphInfo;
import com.intellij.vcs.log.graph.utils.LinearGraphUtils;
import com.intellij.vcs.log.graph.utils.NormalEdge;
import org.jetbrains.annotations.NotNull;
public class ColorGetterByLayoutIndex<CommitId> {
@NotNull private final LinearGraph myLinearGraph;
@NotNull private final PermanentGraphInfo<CommitId> myPermanentGraphInfo;
@NotNull private final GraphColorManager<CommitId> myColorManager;
public ColorGetterByLayoutIndex(@NotNull LinearGraph linearGraph,
@NotNull PermanentGraphInfo<CommitId> permanentGraphInfo,
@NotNull GraphColorManager<CommitId> colorManager) {
myLinearGraph = linearGraph;
myPermanentGraphInfo = permanentGraphInfo;
myColorManager = colorManager;
}
public int getColorId(@NotNull GraphElement element) {
int upNodeIndex, downNodeIndex;
if (element instanceof GraphNode) {
upNodeIndex = ((GraphNode)element).getNodeIndex();
downNodeIndex = upNodeIndex;
}
else {
GraphEdge edge = (GraphEdge)element;
NormalEdge normalEdge = LinearGraphUtils.asNormalEdge(edge);
if (normalEdge != null) {
upNodeIndex = normalEdge.up;
downNodeIndex = normalEdge.down;
}
else {
upNodeIndex = LinearGraphUtils.getNotNullNodeIndex(edge);
downNodeIndex = upNodeIndex;
}
}
int upLayoutIndex = getLayoutIndex(upNodeIndex);
int downLayoutIndex = getLayoutIndex(downNodeIndex);
CommitId headCommitId = getOneOfHeads(upNodeIndex);
if (upLayoutIndex != downLayoutIndex) {
return myColorManager.getColorOfFragment(headCommitId, Math.max(upLayoutIndex, downLayoutIndex));
}
if (upLayoutIndex == myPermanentGraphInfo.getPermanentGraphLayout().getLayoutIndex(getHeadNodeId(upNodeIndex))) {
return myColorManager.getColorOfBranch(headCommitId);
}
else {
return myColorManager.getColorOfFragment(headCommitId, upLayoutIndex);
}
}
private int getHeadNodeId(int upNodeIndex) {
int nodeId = getNodeId(upNodeIndex);
if (nodeId < 0) return 0;
return myPermanentGraphInfo.getPermanentGraphLayout().getOneOfHeadNodeIndex(nodeId);
}
private CommitId getOneOfHeads(int upNodeIndex) {
return myPermanentGraphInfo.getPermanentCommitsInfo().getCommitId(getHeadNodeId(upNodeIndex));
}
private int getLayoutIndex(int upNodeIndex) {
int nodeId = getNodeId(upNodeIndex);
if (nodeId < 0) return nodeId;
return myPermanentGraphInfo.getPermanentGraphLayout().getLayoutIndex(nodeId);
}
private int getNodeId(int upNodeIndex) {
return myLinearGraph.getNodeId(upNodeIndex);
}
}