| /* |
| * 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.data; |
| |
| import com.intellij.vcs.log.graph.PrintElement; |
| import com.intellij.vcs.log.graph.RowInfo; |
| import com.intellij.vcs.log.graph.RowType; |
| import com.intellij.vcs.log.graph.VisibleGraph; |
| import com.intellij.vcs.log.graph.actions.ActionController; |
| import com.intellij.vcs.log.graph.actions.GraphAnswer; |
| import com.intellij.vcs.log.graph.actions.GraphMouseAction; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.awt.*; |
| import java.util.Collection; |
| import java.util.Collections; |
| |
| class EmptyVisibleGraph implements VisibleGraph<Integer> { |
| |
| private static final VisibleGraph<Integer> INSTANCE = new EmptyVisibleGraph(); |
| |
| @NotNull |
| public static VisibleGraph<Integer> getInstance() { |
| return INSTANCE; |
| } |
| |
| @Override |
| public int getVisibleCommitCount() { |
| return 0; |
| } |
| |
| @NotNull |
| @Override |
| public RowInfo<Integer> getRowInfo(int visibleRow) { |
| return EmptyRowInfo.INSTANCE; |
| } |
| |
| @Override |
| public int getVisibleRowIndex(@NotNull Integer integer) { |
| return -1; |
| } |
| |
| @NotNull |
| @Override |
| public ActionController<Integer> getActionController() { |
| return DumbActionController.INSTANCE; |
| } |
| |
| private static class DumbActionController implements ActionController<Integer> { |
| |
| private static ActionController<Integer> INSTANCE = new DumbActionController(); |
| |
| @NotNull |
| @Override |
| public GraphAnswer<Integer> performMouseAction(@NotNull GraphMouseAction graphMouseAction) { |
| return EmptyGraphAnswer.INSTANCE; |
| } |
| |
| @Override |
| public boolean areLongEdgesHidden() { |
| return false; |
| } |
| |
| @Override |
| public void setLongEdgesHidden(boolean longEdgesHidden) { |
| } |
| |
| @Override |
| public void setLinearBranchesExpansion(boolean collapse) { |
| } |
| |
| private static class EmptyGraphAnswer implements GraphAnswer<Integer> { |
| private static EmptyGraphAnswer INSTANCE = new EmptyGraphAnswer(); |
| |
| @Nullable |
| @Override |
| public Cursor getCursorToSet() { |
| return null; |
| } |
| |
| @Nullable |
| @Override |
| public Integer getCommitToJump() { |
| return null; |
| } |
| } |
| } |
| |
| private static class EmptyRowInfo implements RowInfo<Integer> { |
| |
| private static final RowInfo<Integer> INSTANCE = new EmptyRowInfo(); |
| |
| @NotNull |
| @Override |
| public Integer getCommit() { |
| return 0; |
| } |
| |
| @NotNull |
| @Override |
| public Integer getOneOfHeads() { |
| return 0; |
| } |
| |
| @NotNull |
| @Override |
| public Collection<PrintElement> getPrintElements() { |
| return Collections.emptyList(); |
| } |
| |
| @NotNull |
| @Override |
| public RowType getRowType() { |
| return RowType.NORMAL; |
| } |
| } |
| } |