343 lines
12 KiB
Java
343 lines
12 KiB
Java
/*
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* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.java2d;
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import java.awt.AWTError;
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import java.awt.Color;
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import java.awt.Font;
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import java.awt.Graphics2D;
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import java.awt.GraphicsConfiguration;
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import java.awt.GraphicsDevice;
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import java.awt.GraphicsEnvironment;
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import java.awt.Insets;
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import java.awt.Rectangle;
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import java.awt.Toolkit;
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import java.awt.font.TextAttribute;
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import java.awt.image.BufferedImage;
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import java.awt.peer.ComponentPeer;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FilenameFilter;
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import java.io.InputStreamReader;
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import java.io.IOException;
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import java.text.AttributedCharacterIterator;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Locale;
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import java.util.Map;
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import java.util.NoSuchElementException;
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import java.util.Set;
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import java.util.StringTokenizer;
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import java.util.TreeMap;
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import java.util.Vector;
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import java.util.concurrent.ConcurrentHashMap;
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import sun.awt.AppContext;
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import sun.awt.DisplayChangedListener;
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import sun.awt.FontConfiguration;
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import sun.awt.SunDisplayChanger;
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import sun.font.CompositeFontDescriptor;
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import sun.font.Font2D;
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import sun.font.FontManager;
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import sun.font.FontManagerFactory;
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import sun.font.FontManagerForSGE;
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import sun.font.NativeFont;
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/**
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* This is an implementation of a GraphicsEnvironment object for the
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* default local GraphicsEnvironment.
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*
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* @see GraphicsDevice
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* @see GraphicsConfiguration
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*/
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public abstract class SunGraphicsEnvironment extends GraphicsEnvironment
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implements DisplayChangedListener {
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public static boolean isOpenSolaris;
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private static Font defaultFont;
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public SunGraphicsEnvironment() {
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java.security.AccessController.doPrivileged(
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new java.security.PrivilegedAction() {
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public Object run() {
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String version = System.getProperty("os.version", "0.0");
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try {
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float ver = Float.parseFloat(version);
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if (ver > 5.10f) {
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File f = new File("/etc/release");
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FileInputStream fis = new FileInputStream(f);
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InputStreamReader isr
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= new InputStreamReader(fis, "ISO-8859-1");
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BufferedReader br = new BufferedReader(isr);
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String line = br.readLine();
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if (line.indexOf("OpenSolaris") >= 0) {
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isOpenSolaris = true;
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} else {
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/* We are using isOpenSolaris as meaning
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* we know the Solaris commercial fonts aren't
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* present. "Solaris Next" (03/10) did not
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* include these even though its was not
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* OpenSolaris. Need to revisit how this is
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* handled but for now as in 6ux, we'll use
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* the test for a standard font resource as
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* being an indicator as to whether we need
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* to treat this as OpenSolaris from a font
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* config perspective.
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*/
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String courierNew =
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"/usr/openwin/lib/X11/fonts/TrueType/CourierNew.ttf";
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File courierFile = new File(courierNew);
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isOpenSolaris = !courierFile.exists();
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}
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fis.close();
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}
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} catch (Exception e) {
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}
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/* Establish the default font to be used by SG2D etc */
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defaultFont = new Font(Font.DIALOG, Font.PLAIN, 12);
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return null;
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}
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});
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}
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protected GraphicsDevice[] screens;
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/**
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* Returns an array of all of the screen devices.
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*/
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public synchronized GraphicsDevice[] getScreenDevices() {
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GraphicsDevice[] ret = screens;
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if (ret == null) {
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int num = getNumScreens();
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ret = new GraphicsDevice[num];
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for (int i = 0; i < num; i++) {
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ret[i] = makeScreenDevice(i);
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}
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screens = ret;
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}
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return ret;
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}
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/**
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* Returns the number of screen devices of this graphics environment.
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*
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* @return the number of screen devices of this graphics environment
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*/
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protected abstract int getNumScreens();
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/**
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* Create and return the screen device with the specified number. The
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* device with number <code>0</code> will be the default device (returned
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* by {@link #getDefaultScreenDevice()}.
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*
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* @param screennum the number of the screen to create
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*
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* @return the created screen device
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*/
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protected abstract GraphicsDevice makeScreenDevice(int screennum);
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/**
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* Returns the default screen graphics device.
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*/
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public GraphicsDevice getDefaultScreenDevice() {
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GraphicsDevice[] screens = getScreenDevices();
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if (screens.length == 0) {
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throw new AWTError("no screen devices");
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}
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return screens[0];
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}
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/**
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* Returns a Graphics2D object for rendering into the
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* given BufferedImage.
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* @throws NullPointerException if BufferedImage argument is null
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*/
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public Graphics2D createGraphics(BufferedImage img) {
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if (img == null) {
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throw new NullPointerException("BufferedImage cannot be null");
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}
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SurfaceData sd = SurfaceData.getPrimarySurfaceData(img);
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return new SunGraphics2D(sd, Color.white, Color.black, defaultFont);
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}
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public static FontManagerForSGE getFontManagerForSGE() {
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FontManager fm = FontManagerFactory.getInstance();
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return (FontManagerForSGE) fm;
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}
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/* Modifies the behaviour of a subsequent call to preferLocaleFonts()
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* to use Mincho instead of Gothic for dialoginput in JA locales
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* on windows. Not needed on other platforms.
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*
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* DO NOT MOVE OR RENAME OR OTHERWISE ALTER THIS METHOD.
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* ITS USED BY SOME NON-JRE INTERNAL CODE.
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*/
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public static void useAlternateFontforJALocales() {
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getFontManagerForSGE().useAlternateFontforJALocales();
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}
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/**
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* Returns all fonts available in this environment.
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*/
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public Font[] getAllFonts() {
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FontManagerForSGE fm = getFontManagerForSGE();
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Font[] installedFonts = fm.getAllInstalledFonts();
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Font[] created = fm.getCreatedFonts();
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if (created == null || created.length == 0) {
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return installedFonts;
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} else {
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int newlen = installedFonts.length + created.length;
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Font [] fonts = java.util.Arrays.copyOf(installedFonts, newlen);
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System.arraycopy(created, 0, fonts,
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installedFonts.length, created.length);
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return fonts;
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}
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}
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public String[] getAvailableFontFamilyNames(Locale requestedLocale) {
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FontManagerForSGE fm = getFontManagerForSGE();
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String[] installed = fm.getInstalledFontFamilyNames(requestedLocale);
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/* Use a new TreeMap as used in getInstalledFontFamilyNames
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* and insert all the keys in lower case, so that the sort order
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* is the same as the installed families. This preserves historical
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* behaviour and inserts new families in the right place.
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* It would have been marginally more efficient to directly obtain
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* the tree map and just insert new entries, but not so much as
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* to justify the extra internal interface.
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*/
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TreeMap<String, String> map = fm.getCreatedFontFamilyNames();
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if (map == null || map.size() == 0) {
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return installed;
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} else {
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for (int i=0; i<installed.length; i++) {
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map.put(installed[i].toLowerCase(requestedLocale),
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installed[i]);
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}
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String[] retval = new String[map.size()];
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Object [] keyNames = map.keySet().toArray();
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for (int i=0; i < keyNames.length; i++) {
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retval[i] = (String)map.get(keyNames[i]);
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}
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return retval;
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}
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}
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public String[] getAvailableFontFamilyNames() {
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return getAvailableFontFamilyNames(Locale.getDefault());
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}
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/**
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* Return the bounds of a GraphicsDevice, less its screen insets.
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* See also java.awt.GraphicsEnvironment.getUsableBounds();
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*/
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public static Rectangle getUsableBounds(GraphicsDevice gd) {
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GraphicsConfiguration gc = gd.getDefaultConfiguration();
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Insets insets = Toolkit.getDefaultToolkit().getScreenInsets(gc);
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Rectangle usableBounds = gc.getBounds();
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usableBounds.x += insets.left;
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usableBounds.y += insets.top;
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usableBounds.width -= (insets.left + insets.right);
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usableBounds.height -= (insets.top + insets.bottom);
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return usableBounds;
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}
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/**
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* From the DisplayChangedListener interface; called
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* when the display mode has been changed.
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*/
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public void displayChanged() {
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// notify screens in device array to do display update stuff
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for (GraphicsDevice gd : getScreenDevices()) {
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if (gd instanceof DisplayChangedListener) {
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((DisplayChangedListener) gd).displayChanged();
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}
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}
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// notify SunDisplayChanger list (e.g. VolatileSurfaceManagers and
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// SurfaceDataProxies) about the display change event
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displayChanger.notifyListeners();
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}
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/**
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* Part of the DisplayChangedListener interface:
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* propagate this event to listeners
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*/
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public void paletteChanged() {
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displayChanger.notifyPaletteChanged();
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}
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/**
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* Returns true when the display is local, false for remote displays.
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*
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* @return true when the display is local, false for remote displays
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*/
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public abstract boolean isDisplayLocal();
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/*
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* ----DISPLAY CHANGE SUPPORT----
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*/
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protected SunDisplayChanger displayChanger = new SunDisplayChanger();
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/**
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* Add a DisplayChangeListener to be notified when the display settings
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* are changed.
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*/
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public void addDisplayChangedListener(DisplayChangedListener client) {
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displayChanger.add(client);
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}
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/**
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* Remove a DisplayChangeListener from Win32GraphicsEnvironment
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*/
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public void removeDisplayChangedListener(DisplayChangedListener client) {
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displayChanger.remove(client);
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}
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/*
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* ----END DISPLAY CHANGE SUPPORT----
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*/
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/**
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* Returns true if FlipBufferStrategy with COPIED buffer contents
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* is preferred for this peer's GraphicsConfiguration over
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* BlitBufferStrategy, false otherwise.
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*
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* The reason FlipBS could be preferred is that in some configurations
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* an accelerated copy to the screen is supported (like Direct3D 9)
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*
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* @return true if flip strategy should be used, false otherwise
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*/
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public boolean isFlipStrategyPreferred(ComponentPeer peer) {
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return false;
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}
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}
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