| /* |
| * 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.openapi.editor.impl; |
| |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.ex.util.EditorUtil; |
| import com.intellij.util.containers.IntIntHashMap; |
| import org.intellij.lang.annotations.JdkConstants; |
| |
| /** |
| * @author peter |
| */ |
| public class CharWidthCache { |
| private final Editor myEditor; |
| private final IntIntHashMap myCache = new IntIntHashMap(); |
| |
| public CharWidthCache(Editor editor) { |
| myEditor = editor; |
| } |
| |
| public int charWidth(char c, @JdkConstants.FontStyle int fontType) { |
| int key = c + fontType * (Character.MAX_VALUE + 1); |
| int width = myCache.get(key); |
| if (width < 0) { |
| myCache.put(key, width = EditorUtil.charWidth(c, fontType, myEditor)); |
| } |
| return width; |
| } |
| |
| } |