| /* |
| * Copyright 2000-2009 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.history.integration.ui.models; |
| |
| import com.intellij.history.core.revisions.Revision; |
| import com.intellij.history.core.tree.Entry; |
| import com.intellij.history.integration.IdeaGateway; |
| import com.intellij.openapi.diff.DiffContent; |
| import com.intellij.openapi.diff.FragmentContent; |
| import com.intellij.openapi.diff.SimpleContent; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.util.diff.FilesTooBigForDiffException; |
| |
| public class SelectionDifferenceModel extends FileDifferenceModel { |
| private final SelectionCalculator myCalculator; |
| private final Revision myLeftRevision; |
| private final Revision myRightRevision; |
| private final int myFrom; |
| private final int myTo; |
| |
| public SelectionDifferenceModel(Project p, |
| IdeaGateway gw, |
| SelectionCalculator c, |
| Revision left, |
| Revision right, |
| int from, |
| int to, |
| boolean editableRightContent) { |
| super(p, gw, editableRightContent); |
| myCalculator = c; |
| myLeftRevision = left; |
| myRightRevision = right; |
| myFrom = from; |
| myTo = to; |
| } |
| |
| @Override |
| protected Entry getLeftEntry() { |
| return myLeftRevision.findEntry(); |
| } |
| |
| @Override |
| protected Entry getRightEntry() { |
| return myRightRevision.findEntry(); |
| } |
| |
| @Override |
| protected boolean isLeftContentAvailable(RevisionProcessingProgress p) { |
| try { |
| return myCalculator.canCalculateFor(myLeftRevision, p); |
| } |
| catch (FilesTooBigForDiffException e) { |
| return false; |
| } |
| } |
| |
| @Override |
| protected boolean isRightContentAvailable(RevisionProcessingProgress p) { |
| try { |
| return myCalculator.canCalculateFor(myRightRevision, p); |
| } |
| catch (FilesTooBigForDiffException e) { |
| return false; |
| } |
| } |
| |
| @Override |
| protected DiffContent doGetLeftDiffContent(RevisionProcessingProgress p) { |
| return getDiffContent(myLeftRevision, p); |
| } |
| |
| @Override |
| protected DiffContent getReadOnlyRightDiffContent(RevisionProcessingProgress p) { |
| return getDiffContent(myRightRevision, p); |
| } |
| |
| @Override |
| protected DiffContent getEditableRightDiffContent(RevisionProcessingProgress p) { |
| Document d = getDocument(); |
| |
| int fromOffset = d.getLineStartOffset(myFrom); |
| int toOffset = d.getLineEndOffset(myTo); |
| |
| return FragmentContent.fromRangeMarker(d.createRangeMarker(fromOffset, toOffset), myProject); |
| } |
| |
| private SimpleContent getDiffContent(Revision r, RevisionProcessingProgress p) { |
| return createSimpleDiffContent(getContentOf(r, p), r.findEntry()); |
| } |
| |
| private String getContentOf(Revision r, RevisionProcessingProgress p) { |
| try { |
| return myCalculator.getSelectionFor(r, p).getBlockContent(); |
| } |
| catch (FilesTooBigForDiffException e) { |
| return ""; |
| } |
| } |
| } |