/*
* Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package sun.awt;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Toolkit;
import java.io.File;
import java.io.IOException;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.ListIterator;
import java.util.NoSuchElementException;
import java.util.StringTokenizer;
import sun.awt.DisplayChangedListener;
import sun.awt.SunDisplayChanger;
import sun.awt.windows.WFontConfiguration;
import sun.awt.windows.WPrinterJob;
import sun.awt.windows.WToolkit;
import sun.font.FontManager;
import sun.java2d.SunGraphicsEnvironment;
import sun.java2d.windows.WindowsFlags;
/**
* This is an implementation of a GraphicsEnvironment object for the
* default local GraphicsEnvironment used by the Java Runtime Environment
* for Windows.
*
* @see GraphicsDevice
* @see GraphicsConfiguration
*/
public class Win32GraphicsEnvironment
extends SunGraphicsEnvironment
{
static {
// Ensure awt is loaded already. Also, this forces static init
// of WToolkit and Toolkit, which we depend upon
WToolkit.loadLibraries();
// setup flags before initializing native layer
WindowsFlags.initFlags();
initDisplayWrapper();
eudcFontFileName = getEUDCFontFile();
}
/**
* Noop function that just acts as an entry point for someone to force
* a static initialization of this class.
*/
public static void init() {}
/**
* Initializes native components of the graphics environment. This
* includes everything from the native GraphicsDevice elements to
* the DirectX rendering layer.
*/
private static native void initDisplay();
private static boolean displayInitialized; // = false;
public static void initDisplayWrapper() {
if (!displayInitialized) {
displayInitialized = true;
initDisplay();
}
}
public Win32GraphicsEnvironment() {
}
protected native int getNumScreens();
protected native int getDefaultScreen();
public GraphicsDevice getDefaultScreenDevice() {
return getScreenDevices()[getDefaultScreen()];
}
/**
* Returns the number of pixels per logical inch along the screen width.
* In a system with multiple display monitors, this value is the same for
* all monitors.
* @returns number of pixels per logical inch in X direction
*/
public native int getXResolution();
/**
* Returns the number of pixels per logical inch along the screen height.
* In a system with multiple display monitors, this value is the same for
* all monitors.
* @returns number of pixels per logical inch in Y direction
*/
public native int getYResolution();
/*
* ----DISPLAY CHANGE SUPPORT----
*/
// list of invalidated graphics devices (those which were removed)
private ArrayList<WeakReference<Win32GraphicsDevice>> oldDevices;
/*
* From DisplayChangeListener interface.
* Called from WToolkit and executed on the event thread when the
* display settings are changed.
*/
@Override
public void displayChanged() {
// getNumScreens() will return the correct current number of screens
GraphicsDevice newDevices[] = new GraphicsDevice[getNumScreens()];
GraphicsDevice oldScreens[] = screens;
// go through the list of current devices and determine if they
// could be reused, or will have to be replaced
if (oldScreens != null) {
for (int i = 0; i < oldScreens.length; i++) {
if (!(screens[i] instanceof Win32GraphicsDevice)) {
// REMIND: can we ever have anything other than Win32GD?
assert (false) : oldScreens[i];
continue;
}
Win32GraphicsDevice gd = (Win32GraphicsDevice)oldScreens[i];
// devices may be invalidated from the native code when the
// display change happens (device add/removal also causes a
// display change)
if (!gd.isValid()) {
if (oldDevices == null) {
oldDevices =
new ArrayList<WeakReference<Win32GraphicsDevice>>();
}
oldDevices.add(new WeakReference<Win32GraphicsDevice>(gd));
} else if (i < newDevices.length) {
// reuse the device
newDevices[i] = gd;
}
}
oldScreens = null;
}
// create the new devices (those that weren't reused)
for (int i = 0; i < newDevices.length; i++) {
if (newDevices[i] == null) {
newDevices[i] = makeScreenDevice(i);
}
}
// install the new array of devices
// Note: no synchronization here, it doesn't matter if a thread gets
// a new or an old array this time around
screens = newDevices;
for (GraphicsDevice gd : screens) {
if (gd instanceof DisplayChangedListener) {
((DisplayChangedListener)gd).displayChanged();
}
}
// re-invalidate all old devices. It's needed because those in the list
// may become "invalid" again - if the current default device is removed,
// for example. Also, they need to be notified about display
// changes as well.
if (oldDevices != null) {
int defScreen = getDefaultScreen();
for (ListIterator<WeakReference<Win32GraphicsDevice>> it =
oldDevices.listIterator(); it.hasNext();)
{
Win32GraphicsDevice gd = it.next().get();
if (gd != null) {
gd.invalidate(defScreen);
gd.displayChanged();
} else {
// no more references to this device, remove it
it.remove();
}
}
}
// Reset the static GC for the (possibly new) default screen
WToolkit.resetGC();
// notify SunDisplayChanger list (e.g. VolatileSurfaceManagers and
// CachingSurfaceManagers) about the display change event
displayChanger.notifyListeners();
// note: do not call super.displayChanged, we've already done everything
}
/*
* ----END DISPLAY CHANGE SUPPORT----
*/
/* Used on Windows to obtain from the windows registry the name
* of a file containing the system EUFC font. If running in one of
* the locales for which this applies, and one is defined, the font
* defined by this file is appended to all composite fonts as a
* fallback component.
*/
private static native String getEUDCFontFile();
/**
* Whether registerFontFile expects absolute or relative
* font file names.
*/
protected boolean useAbsoluteFontFileNames() {
return false;
}
/* Unlike the shared code version, this expects a base file name -
* not a full path name.
* The font configuration file has base file names and the FontConfiguration
* class reports these back to the GraphicsEnvironment, so these
* are the componentFileNames of CompositeFonts.
*/
protected void registerFontFile(String fontFileName, String[] nativeNames,
int fontRank, boolean defer) {
// REMIND: case compare depends on platform
if (registeredFontFiles.contains(fontFileName)) {
return;
}
registeredFontFiles.add(fontFileName);
int fontFormat;
if (ttFilter.accept(null, fontFileName)) {
fontFormat = FontManager.FONTFORMAT_TRUETYPE;
} else if (t1Filter.accept(null, fontFileName)) {
fontFormat = FontManager.FONTFORMAT_TYPE1;
} else {
/* on windows we don't use/register native fonts */
return;
}
if (fontPath == null) {
fontPath = getPlatformFontPath(noType1Font);
}
/* Look in the JRE font directory first.
* This is playing it safe as we would want to find fonts in the
* JRE font directory ahead of those in the system directory
*/
String tmpFontPath = jreFontDirName+File.pathSeparator+fontPath;
StringTokenizer parser = new StringTokenizer(tmpFontPath,
File.pathSeparator);
boolean found = false;
try {
while (!found && parser.hasMoreTokens()) {
String newPath = parser.nextToken();
File theFile = new File(newPath, fontFileName);
if (theFile.canRead()) {
found = true;
String path = theFile.getAbsolutePath();
if (defer) {
FontManager.registerDeferredFont(fontFileName, path,
nativeNames,
fontFormat, true,
fontRank);
} else {
FontManager.registerFontFile(path, nativeNames,
fontFormat, true,
fontRank);
}
break;
}
}
} catch (NoSuchElementException e) {
System.err.println(e);
}
if (!found) {
addToMissingFontFileList(fontFileName);
}
}
/* register only TrueType/OpenType fonts
* Because these need to be registed just for use when printing,
* we defer the actual registration and the static initialiser
* for the printing class makes the call to registerJREFontsForPrinting()
*/
static String fontsForPrinting = null;
protected void registerJREFontsWithPlatform(String pathName) {
fontsForPrinting = pathName;
}
public static void registerJREFontsForPrinting() {
String pathName = null;
synchronized (Win32GraphicsEnvironment.class) {
GraphicsEnvironment.getLocalGraphicsEnvironment();
if (fontsForPrinting == null) {
return;
}
pathName = fontsForPrinting;
fontsForPrinting = null;
}
File f1 = new File(pathName);
String[] ls = f1.list(new TTFilter());
if (ls == null) {
return;
}
for (int i=0; i <ls.length; i++ ) {
File fontFile = new File(f1, ls[i]);
registerFontWithPlatform(fontFile.getAbsolutePath());
}
}
protected static native void registerFontWithPlatform(String fontName);
protected static native void deRegisterFontWithPlatform(String fontName);
protected GraphicsDevice makeScreenDevice(int screennum) {
return new Win32GraphicsDevice(screennum);
}
// Implements SunGraphicsEnvironment.createFontConfiguration.
protected FontConfiguration createFontConfiguration() {
return new WFontConfiguration(this);
}
public FontConfiguration createFontConfiguration(boolean preferLocaleFonts,
boolean preferPropFonts) {
return new WFontConfiguration(this, preferLocaleFonts,preferPropFonts);
}
}