| /* |
| * Copyright 2000-2011 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. |
| */ |
| |
| /* |
| * Created by IntelliJ IDEA. |
| * User: max |
| * Date: Apr 22, 2002 |
| * Time: 5:51:22 PM |
| * To change template for new class use |
| * Code Style | Class Templates options (Tools | IDE Options). |
| */ |
| package com.intellij.openapi.editor.impl; |
| |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.FoldRegion; |
| import com.intellij.openapi.editor.FoldingGroup; |
| import com.intellij.openapi.editor.ex.DocumentEx; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class FoldRegionImpl extends RangeMarkerImpl implements FoldRegion { |
| private boolean myIsExpanded; |
| private final Editor myEditor; |
| private final String myPlaceholderText; |
| private final FoldingGroup myGroup; |
| private final boolean myShouldNeverExpand; |
| |
| FoldRegionImpl(@NotNull Editor editor, |
| int startOffset, |
| int endOffset, |
| @NotNull String placeholder, |
| @Nullable FoldingGroup group, |
| boolean shouldNeverExpand) { |
| super((DocumentEx)editor.getDocument(), startOffset, endOffset,true); |
| myGroup = group; |
| myShouldNeverExpand = shouldNeverExpand; |
| myIsExpanded = true; |
| myEditor = editor; |
| myPlaceholderText = placeholder; |
| } |
| |
| @Override |
| public boolean isExpanded() { |
| return myIsExpanded; |
| } |
| |
| @Override |
| public void setExpanded(boolean expanded) { |
| FoldingModelImpl foldingModel = (FoldingModelImpl)myEditor.getFoldingModel(); |
| if (myGroup == null) { |
| doSetExpanded(expanded, foldingModel, this); |
| } else { |
| for (final FoldRegion region : foldingModel.getGroupedRegions(myGroup)) { |
| doSetExpanded(expanded, foldingModel, region); |
| // There is a possible case that we can't change expanded status of particular fold region (e.g. we can't collapse |
| // if it contains caret). So, we revert all changes for the fold regions from the same group then. |
| if (region.isExpanded() != expanded) { |
| for (FoldRegion regionToRevert : foldingModel.getGroupedRegions(myGroup)) { |
| if (regionToRevert == region) { |
| break; |
| } |
| doSetExpanded(!expanded, foldingModel, regionToRevert); |
| } |
| return; |
| } |
| } |
| } |
| } |
| |
| private static void doSetExpanded(boolean expanded, FoldingModelImpl foldingModel, FoldRegion region) { |
| if (expanded) { |
| foldingModel.expandFoldRegion(region); |
| } |
| else{ |
| foldingModel.collapseFoldRegion(region); |
| } |
| } |
| |
| @Override |
| public boolean isValid() { |
| return super.isValid() && intervalStart() < intervalEnd(); |
| } |
| |
| public void setExpandedInternal(boolean toExpand) { |
| myIsExpanded = toExpand; |
| } |
| |
| @Override |
| @NotNull |
| public String getPlaceholderText() { |
| return myPlaceholderText; |
| } |
| |
| @Override |
| public Editor getEditor() { |
| return myEditor; |
| } |
| |
| @Override |
| @Nullable |
| public FoldingGroup getGroup() { |
| return myGroup; |
| } |
| |
| @Override |
| public boolean shouldNeverExpand() { |
| return myShouldNeverExpand; |
| } |
| |
| public String toString() { |
| return "FoldRegion " + (myIsExpanded ? "-" : "+") + "(" + getStartOffset() + ":" + getEndOffset() + ")" |
| + (isValid() ? "" : "(invalid)") + ", placeholder='" + myPlaceholderText + "'"; |
| } |
| } |