| /* |
| * Copyright 2000-2013 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.util.ui; |
| |
| import com.intellij.openapi.ui.GraphicsConfig; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.awt.*; |
| import java.awt.image.BufferedImage; |
| import java.util.Map; |
| |
| /** |
| * @author Konstantin Bulenkov |
| */ |
| public class GraphicsUtil { |
| @SuppressWarnings("UndesirableClassUsage") |
| private static final Graphics2D ourGraphics = new BufferedImage(1,1,BufferedImage.TYPE_INT_ARGB).createGraphics(); |
| static { |
| setupFractionalMetrics(ourGraphics); |
| setupAntialiasing(ourGraphics, true, true); |
| } |
| |
| public static void setupFractionalMetrics(Graphics g) { |
| ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON); |
| } |
| |
| public static void setupAntialiasing(@NotNull Graphics g2) { |
| setupAntialiasing(g2, true, false); |
| } |
| |
| public static int stringWidth(String text, Font font) { |
| setupAntialiasing(ourGraphics, true, true); |
| return ourGraphics.getFontMetrics(font).stringWidth(text); |
| } |
| |
| public static int charsWidth(char[] data, int off, int len, Font font) { |
| return ourGraphics.getFontMetrics(font).charsWidth(data, off, len); |
| } |
| |
| public static int charWidth(char ch,Font font) { |
| return ourGraphics.getFontMetrics(font).charWidth(ch); |
| } |
| |
| public static int charWidth(int ch,Font font) { |
| return ourGraphics.getFontMetrics(font).charWidth(ch); |
| } |
| |
| public static void setupAntialiasing(Graphics g2, boolean enableAA, boolean ignoreSystemSettings) { |
| if (g2 instanceof Graphics2D) { |
| Graphics2D g = (Graphics2D)g2; |
| Toolkit tk = Toolkit.getDefaultToolkit(); |
| //noinspection HardCodedStringLiteral |
| Map map = (Map)tk.getDesktopProperty("awt.font.desktophints"); |
| |
| if (map != null && !ignoreSystemSettings) { |
| g.addRenderingHints(map); |
| } else { |
| g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, |
| enableAA ? RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HBGR : RenderingHints.VALUE_TEXT_ANTIALIAS_OFF); |
| } |
| } |
| } |
| |
| public static GraphicsConfig setupAAPainting(Graphics g) { |
| final GraphicsConfig config = new GraphicsConfig(g); |
| final Graphics2D g2 = (Graphics2D)g; |
| g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); |
| g2.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE); |
| return config; |
| } |
| |
| public static GraphicsConfig paintWithAlpha(Graphics g, float alpha) { |
| assert 0.0f <= alpha && alpha <= 1.0f : "alpha should be in range 0.0f .. 1.0f"; |
| final GraphicsConfig config = new GraphicsConfig(g); |
| final Graphics2D g2 = (Graphics2D)g; |
| |
| g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha)); |
| return config; |
| } |
| } |