| /* |
| * 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. |
| */ |
| package git4idea.history.wholeTree; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * @author irengrig |
| * Date: 7/1/11 |
| * Time: 2:37 PM |
| */ |
| abstract class HighlightingRendererBase { |
| private final List<String> mySearchContext; |
| |
| HighlightingRendererBase() { |
| mySearchContext = new ArrayList<String>(); |
| } |
| |
| public void setSearchContext(final List<String> list) { |
| mySearchContext.clear(); |
| mySearchContext.addAll(list); |
| } |
| |
| protected abstract void usual(final String s); |
| protected abstract void highlight(final String s); |
| |
| void tryHighlight(String text) { |
| final String lower = text.toLowerCase(); |
| int idxFrom = 0; |
| while (idxFrom < text.length()) { |
| boolean adjusted = false; |
| int adjustedIdx = text.length() + 1; |
| int adjLen = 0; |
| for (String word : mySearchContext) { |
| final int next = lower.indexOf(word, idxFrom); |
| if ((next != -1) && (adjustedIdx > next)) { |
| adjustedIdx = next; |
| adjLen = word.length(); |
| adjusted = true; |
| } |
| } |
| if (adjusted) { |
| if (idxFrom != adjustedIdx) { |
| usual(text.substring(idxFrom, adjustedIdx)); |
| } |
| idxFrom = adjustedIdx + adjLen; |
| highlight(text.substring(adjustedIdx, idxFrom)); |
| continue; |
| } |
| usual(text.substring(idxFrom)); |
| return; |
| } |
| } |
| |
| public boolean isEmpty() { |
| return mySearchContext == null || mySearchContext.isEmpty(); |
| } |
| } |