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/*
* Copyright 2000-2012 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.openapi.vcs.ex;
import com.intellij.icons.AllIcons;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.diff.*;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.TextRange;
import com.intellij.openapi.vcs.VcsBundle;
import com.intellij.openapi.vfs.VirtualFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* @author irengrig
*/
public class ShowLineStatusRangeDiffAction extends BaseLineStatusRangeAction {
public ShowLineStatusRangeDiffAction(@NotNull LineStatusTracker lineStatusTracker, @NotNull Range range, @Nullable Editor editor) {
super(VcsBundle.message("action.name.show.difference"), AllIcons.Actions.Diff, lineStatusTracker, range);
}
@Override
public boolean isEnabled() {
return true;
}
@Override
public void actionPerformed(final AnActionEvent e) {
DiffManager.getInstance().getDiffTool().show(createDiffData());
}
private DiffRequest createDiffData() {
return new DiffRequest(myLineStatusTracker.getProject()) {
@NotNull
public DiffContent[] getContents() {
Range range = expand(myRange, myLineStatusTracker.getDocument(), myLineStatusTracker.getVcsDocument());
return new DiffContent[]{
createDiffContent(myLineStatusTracker.getVcsDocument(),
myLineStatusTracker.getVcsRange(range),
null),
createDiffContent(myLineStatusTracker.getDocument(),
myLineStatusTracker.getCurrentTextRange(range),
myLineStatusTracker.getVirtualFile())};
}
public String[] getContentTitles() {
return new String[]{VcsBundle.message("diff.content.title.up.to.date"),
VcsBundle.message("diff.content.title.current.range")};
}
public String getWindowTitle() {
return VcsBundle.message("dialog.title.diff.for.range");
}
};
}
@NotNull
private DiffContent createDiffContent(@NotNull Document uDocument, @NotNull TextRange textRange, @Nullable VirtualFile file) {
final Project project = myLineStatusTracker.getProject();
final DiffContent diffContent = new DocumentContent(project, uDocument);
return new FragmentContent(diffContent, textRange, project, file);
}
@NotNull
private static Range expand(@NotNull Range range, @NotNull Document document, @NotNull Document uDocument) {
if (range.getType() == Range.MODIFIED) return range;
if (range.getType() == Range.INSERTED || range.getType() == Range.DELETED) {
boolean canExpandBefore = range.getLine1() != 0 && range.getVcsLine1() != 0;
boolean canExpandAfter = range.getLine2() < document.getLineCount() && range.getVcsLine2() < uDocument.getLineCount();
int offset1 = range.getLine1() - (canExpandBefore ? 1 : 0);
int uOffset1 = range.getVcsLine1() - (canExpandBefore ? 1 : 0);
int offset2 = range.getLine2() + (canExpandAfter ? 1 : 0);
int uOffset2 = range.getVcsLine2() + (canExpandAfter ? 1 : 0);
return new Range(offset1, offset2, uOffset1, uOffset2, range.getType());
}
throw new IllegalArgumentException("Unknown range type: " + range.getType());
}
}
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