/*
* 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;
}
}