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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
594
src/java.desktop/share/classes/java/awt/GraphicsDevice.java
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594
src/java.desktop/share/classes/java/awt/GraphicsDevice.java
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/*
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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
|
||||
* 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).
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||||
*
|
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* 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.
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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 java.awt;
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import java.awt.image.ColorModel;
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import sun.awt.AWTAccessor;
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import sun.awt.AppContext;
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import sun.awt.SunToolkit;
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/**
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* The {@code GraphicsDevice} class describes the graphics devices
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* that might be available in a particular graphics environment. These
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* include screen and printer devices. Note that there can be many screens
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* and many printers in an instance of {@link GraphicsEnvironment}. Each
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* graphics device has one or more {@link GraphicsConfiguration} objects
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* associated with it. These objects specify the different configurations
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* in which the {@code GraphicsDevice} can be used.
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* <p>
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* In a multi-screen environment, the {@code GraphicsConfiguration}
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* objects can be used to render components on multiple screens. The
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* following code sample demonstrates how to create a {@code JFrame}
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* object for each {@code GraphicsConfiguration} on each screen
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* device in the {@code GraphicsEnvironment}:
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* <pre>{@code
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* GraphicsEnvironment ge = GraphicsEnvironment.
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* getLocalGraphicsEnvironment();
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* GraphicsDevice[] gs = ge.getScreenDevices();
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* for (int j = 0; j < gs.length; j++) {
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* GraphicsDevice gd = gs[j];
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* GraphicsConfiguration[] gc =
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* gd.getConfigurations();
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* for (int i=0; i < gc.length; i++) {
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* JFrame f = new
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* JFrame(gs[j].getDefaultConfiguration());
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* Canvas c = new Canvas(gc[i]);
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* Rectangle gcBounds = gc[i].getBounds();
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* int xoffs = gcBounds.x;
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* int yoffs = gcBounds.y;
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* f.getContentPane().add(c);
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* f.setLocation((i*50)+xoffs, (i*60)+yoffs);
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* f.show();
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* }
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* }
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* }</pre>
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* <p>
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* For more information on full-screen exclusive mode API, see the
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* <a href="http://docs.oracle.com/javase/tutorial/extra/fullscreen/index.html">
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* Full-Screen Exclusive Mode API Tutorial</a>.
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*
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* @see GraphicsEnvironment
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* @see GraphicsConfiguration
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*/
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public abstract class GraphicsDevice {
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private Window fullScreenWindow;
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private AppContext fullScreenAppContext; // tracks which AppContext
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// created the FS window
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// this lock is used for making synchronous changes to the AppContext's
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// current full screen window
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private final Object fsAppContextLock = new Object();
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private Rectangle windowedModeBounds;
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/**
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* This is an abstract class that cannot be instantiated directly.
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* Instances must be obtained from a suitable factory or query method.
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* @see GraphicsEnvironment#getScreenDevices
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* @see GraphicsEnvironment#getDefaultScreenDevice
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* @see GraphicsConfiguration#getDevice
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*/
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protected GraphicsDevice() {
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}
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/**
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* Device is a raster screen.
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*/
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public static final int TYPE_RASTER_SCREEN = 0;
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/**
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* Device is a printer.
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*/
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public static final int TYPE_PRINTER = 1;
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/**
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* Device is an image buffer. This buffer can reside in device
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* or system memory but it is not physically viewable by the user.
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*/
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public static final int TYPE_IMAGE_BUFFER = 2;
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/**
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* Kinds of translucency supported by the underlying system.
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*
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* @see #isWindowTranslucencySupported
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*
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* @since 1.7
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*/
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public static enum WindowTranslucency {
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/**
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* Represents support in the underlying system for windows each pixel
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* of which is guaranteed to be either completely opaque, with
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* an alpha value of 1.0, or completely transparent, with an alpha
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* value of 0.0.
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*/
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PERPIXEL_TRANSPARENT,
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/**
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* Represents support in the underlying system for windows all of
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* the pixels of which have the same alpha value between or including
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* 0.0 and 1.0.
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*/
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TRANSLUCENT,
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/**
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* Represents support in the underlying system for windows that
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* contain or might contain pixels with arbitrary alpha values
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* between and including 0.0 and 1.0.
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*/
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PERPIXEL_TRANSLUCENT;
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}
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/**
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* Returns the type of this {@code GraphicsDevice}.
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* @return the type of this {@code GraphicsDevice}, which can
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* either be TYPE_RASTER_SCREEN, TYPE_PRINTER or TYPE_IMAGE_BUFFER.
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* @see #TYPE_RASTER_SCREEN
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* @see #TYPE_PRINTER
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* @see #TYPE_IMAGE_BUFFER
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*/
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public abstract int getType();
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/**
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* Returns the identification string associated with this
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* {@code GraphicsDevice}.
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* <p>
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* A particular program might use more than one
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* {@code GraphicsDevice} in a {@code GraphicsEnvironment}.
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* This method returns a {@code String} identifying a
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* particular {@code GraphicsDevice} in the local
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* {@code GraphicsEnvironment}. Although there is
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* no public method to set this {@code String}, a programmer can
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* use the {@code String} for debugging purposes. Vendors of
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* the Java™ Runtime Environment can
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* format the return value of the {@code String}. To determine
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* how to interpret the value of the {@code String}, contact the
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* vendor of your Java Runtime. To find out who the vendor is, from
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* your program, call the
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* {@link System#getProperty(String) getProperty} method of the
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* System class with "java.vendor".
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* @return a {@code String} that is the identification
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* of this {@code GraphicsDevice}.
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*/
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public abstract String getIDstring();
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/**
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* Returns all of the {@code GraphicsConfiguration}
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* objects associated with this {@code GraphicsDevice}.
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* @return an array of {@code GraphicsConfiguration}
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* objects that are associated with this
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* {@code GraphicsDevice}.
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*/
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public abstract GraphicsConfiguration[] getConfigurations();
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/**
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* Returns the default {@code GraphicsConfiguration}
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* associated with this {@code GraphicsDevice}.
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* @return the default {@code GraphicsConfiguration}
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* of this {@code GraphicsDevice}.
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*/
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public abstract GraphicsConfiguration getDefaultConfiguration();
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/**
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* Returns the "best" configuration possible that passes the
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* criteria defined in the {@link GraphicsConfigTemplate}.
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* @param gct the {@code GraphicsConfigTemplate} object
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* used to obtain a valid {@code GraphicsConfiguration}
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* @return a {@code GraphicsConfiguration} that passes
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* the criteria defined in the specified
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* {@code GraphicsConfigTemplate}.
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* @see GraphicsConfigTemplate
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*/
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public GraphicsConfiguration
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getBestConfiguration(GraphicsConfigTemplate gct) {
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GraphicsConfiguration[] configs = getConfigurations();
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return gct.getBestConfiguration(configs);
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}
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/**
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* Returns {@code true} if this {@code GraphicsDevice}
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* supports full-screen exclusive mode.
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* If a SecurityManager is installed, its
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* {@code checkPermission} method will be called
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* with {@code AWTPermission("fullScreenExclusive")}.
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* {@code isFullScreenSupported} returns true only if
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* that permission is granted.
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* @return whether full-screen exclusive mode is available for
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* this graphics device
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* @see java.awt.AWTPermission
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* @since 1.4
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*/
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public boolean isFullScreenSupported() {
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return false;
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}
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/**
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* Enter full-screen mode, or return to windowed mode. The entered
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* full-screen mode may be either exclusive or simulated. Exclusive
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* mode is only available if {@code isFullScreenSupported}
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* returns {@code true}.
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* <p>
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* Exclusive mode implies:
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* <ul>
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* <li>Windows cannot overlap the full-screen window. All other application
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* windows will always appear beneath the full-screen window in the Z-order.
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* <li>There can be only one full-screen window on a device at any time,
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* so calling this method while there is an existing full-screen Window
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* will cause the existing full-screen window to
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* return to windowed mode.
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* <li>Input method windows are disabled. It is advisable to call
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* {@code Component.enableInputMethods(false)} to make a component
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* a non-client of the input method framework.
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* </ul>
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* <p>
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* The simulated full-screen mode places and resizes the window to the maximum
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* possible visible area of the screen. However, the native windowing system
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* may modify the requested geometry-related data, so that the {@code Window} object
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* is placed and sized in a way that corresponds closely to the desktop settings.
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* <p>
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* When entering full-screen mode, if the window to be used as a
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* full-screen window is not visible, this method will make it visible.
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* It will remain visible when returning to windowed mode.
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* <p>
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* When entering full-screen mode, all the translucency effects are reset for
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* the window. Its shape is set to {@code null}, the opacity value is set to
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* 1.0f, and the background color alpha is set to 255 (completely opaque).
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* These values are not restored when returning to windowed mode.
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* <p>
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* It is unspecified and platform-dependent how decorated windows operate
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* in full-screen mode. For this reason, it is recommended to turn off
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* the decorations in a {@code Frame} or {@code Dialog} object by using the
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* {@code setUndecorated} method.
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* <p>
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* When returning to windowed mode from an exclusive full-screen window,
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* any display changes made by calling {@code setDisplayMode} are
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* automatically restored to their original state.
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*
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* @param w a window to use as the full-screen window; {@code null}
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* if returning to windowed mode. Some platforms expect the
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* fullscreen window to be a top-level component (i.e., a {@code Frame});
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* therefore it is preferable to use a {@code Frame} here rather than a
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* {@code Window}.
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*
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* @see #isFullScreenSupported
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* @see #getFullScreenWindow
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* @see #setDisplayMode
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* @see Component#enableInputMethods
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* @see Component#setVisible
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* @see Frame#setUndecorated
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* @see Dialog#setUndecorated
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*
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* @since 1.4
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*/
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public void setFullScreenWindow(Window w) {
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if (w != null) {
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if (w.getShape() != null) {
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w.setShape(null);
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}
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if (w.getOpacity() < 1.0f) {
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w.setOpacity(1.0f);
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}
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if (!w.isOpaque()) {
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Color bgColor = w.getBackground();
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bgColor = new Color(bgColor.getRed(), bgColor.getGreen(),
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bgColor.getBlue(), 255);
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w.setBackground(bgColor);
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}
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// Check if this window is in fullscreen mode on another device.
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final GraphicsConfiguration gc = w.getGraphicsConfiguration();
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if (gc != null && gc.getDevice() != this
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&& gc.getDevice().getFullScreenWindow() == w) {
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gc.getDevice().setFullScreenWindow(null);
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}
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}
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if (fullScreenWindow != null && windowedModeBounds != null) {
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// if the window went into fs mode before it was realized it may
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// have (0,0) dimensions
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if (windowedModeBounds.width == 0) windowedModeBounds.width = 1;
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if (windowedModeBounds.height == 0) windowedModeBounds.height = 1;
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fullScreenWindow.setBounds(windowedModeBounds);
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}
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// Set the full screen window
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synchronized (fsAppContextLock) {
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// Associate fullscreen window with current AppContext
|
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if (w == null) {
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fullScreenAppContext = null;
|
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} else {
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fullScreenAppContext = AppContext.getAppContext();
|
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}
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fullScreenWindow = w;
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}
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if (fullScreenWindow != null) {
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windowedModeBounds = fullScreenWindow.getBounds();
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// Note that we use the graphics configuration of the device,
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// not the window's, because we're setting the fs window for
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// this device.
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final GraphicsConfiguration gc = getDefaultConfiguration();
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final Rectangle screenBounds = gc.getBounds();
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if (SunToolkit.isDispatchThreadForAppContext(fullScreenWindow)) {
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// Update graphics configuration here directly and do not wait
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// asynchronous notification from the peer. Note that
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// setBounds() will reset a GC, if it was set incorrectly.
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fullScreenWindow.setGraphicsConfiguration(gc);
|
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}
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fullScreenWindow.setBounds(screenBounds.x, screenBounds.y,
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screenBounds.width, screenBounds.height);
|
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fullScreenWindow.setVisible(true);
|
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fullScreenWindow.toFront();
|
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}
|
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}
|
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|
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/**
|
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* Returns the {@code Window} object representing the
|
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* full-screen window if the device is in full-screen mode.
|
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*
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* @return the full-screen window, or {@code null} if the device is
|
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* not in full-screen mode.
|
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* @see #setFullScreenWindow(Window)
|
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* @since 1.4
|
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*/
|
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public Window getFullScreenWindow() {
|
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Window returnWindow = null;
|
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synchronized (fsAppContextLock) {
|
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// Only return a handle to the current fs window if we are in the
|
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// same AppContext that set the fs window
|
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if (fullScreenAppContext == AppContext.getAppContext()) {
|
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returnWindow = fullScreenWindow;
|
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}
|
||||
}
|
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return returnWindow;
|
||||
}
|
||||
|
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/**
|
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* Returns {@code true} if this {@code GraphicsDevice}
|
||||
* supports low-level display changes.
|
||||
* On some platforms low-level display changes may only be allowed in
|
||||
* full-screen exclusive mode (i.e., if {@link #isFullScreenSupported()}
|
||||
* returns {@code true} and the application has already entered
|
||||
* full-screen mode using {@link #setFullScreenWindow}).
|
||||
* @return whether low-level display changes are supported for this
|
||||
* graphics device.
|
||||
* @see #isFullScreenSupported
|
||||
* @see #setDisplayMode
|
||||
* @see #setFullScreenWindow
|
||||
* @since 1.4
|
||||
*/
|
||||
public boolean isDisplayChangeSupported() {
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the display mode of this graphics device. This is only allowed
|
||||
* if {@link #isDisplayChangeSupported()} returns {@code true} and may
|
||||
* require first entering full-screen exclusive mode using
|
||||
* {@link #setFullScreenWindow} providing that full-screen exclusive mode is
|
||||
* supported (i.e., {@link #isFullScreenSupported()} returns
|
||||
* {@code true}).
|
||||
* <p>
|
||||
*
|
||||
* The display mode must be one of the display modes returned by
|
||||
* {@link #getDisplayModes()}, with one exception: passing a display mode
|
||||
* with {@link DisplayMode#REFRESH_RATE_UNKNOWN} refresh rate will result in
|
||||
* selecting a display mode from the list of available display modes with
|
||||
* matching width, height and bit depth.
|
||||
* However, passing a display mode with {@link DisplayMode#BIT_DEPTH_MULTI}
|
||||
* for bit depth is only allowed if such mode exists in the list returned by
|
||||
* {@link #getDisplayModes()}.
|
||||
* <p>
|
||||
* Example code:
|
||||
* <pre><code>
|
||||
* Frame frame;
|
||||
* DisplayMode newDisplayMode;
|
||||
* GraphicsDevice gd;
|
||||
* // create a Frame, select desired DisplayMode from the list of modes
|
||||
* // returned by gd.getDisplayModes() ...
|
||||
*
|
||||
* if (gd.isFullScreenSupported()) {
|
||||
* gd.setFullScreenWindow(frame);
|
||||
* } else {
|
||||
* // proceed in non-full-screen mode
|
||||
* frame.setSize(...);
|
||||
* frame.setLocation(...);
|
||||
* frame.setVisible(true);
|
||||
* }
|
||||
*
|
||||
* if (gd.isDisplayChangeSupported()) {
|
||||
* gd.setDisplayMode(newDisplayMode);
|
||||
* }
|
||||
* </code></pre>
|
||||
*
|
||||
* @param dm The new display mode of this graphics device.
|
||||
* @exception IllegalArgumentException if the {@code DisplayMode}
|
||||
* supplied is {@code null}, or is not available in the array returned
|
||||
* by {@code getDisplayModes}
|
||||
* @exception UnsupportedOperationException if
|
||||
* {@code isDisplayChangeSupported} returns {@code false}
|
||||
* @see #getDisplayMode
|
||||
* @see #getDisplayModes
|
||||
* @see #isDisplayChangeSupported
|
||||
* @since 1.4
|
||||
*/
|
||||
public void setDisplayMode(DisplayMode dm) {
|
||||
throw new UnsupportedOperationException("Cannot change display mode");
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the current display mode of this
|
||||
* {@code GraphicsDevice}.
|
||||
* The returned display mode is allowed to have a refresh rate
|
||||
* {@link DisplayMode#REFRESH_RATE_UNKNOWN} if it is indeterminate.
|
||||
* Likewise, the returned display mode is allowed to have a bit depth
|
||||
* {@link DisplayMode#BIT_DEPTH_MULTI} if it is indeterminate or if multiple
|
||||
* bit depths are supported.
|
||||
* @return the current display mode of this graphics device.
|
||||
* @see #setDisplayMode(DisplayMode)
|
||||
* @since 1.4
|
||||
*/
|
||||
public DisplayMode getDisplayMode() {
|
||||
GraphicsConfiguration gc = getDefaultConfiguration();
|
||||
Rectangle r = gc.getBounds();
|
||||
ColorModel cm = gc.getColorModel();
|
||||
return new DisplayMode(r.width, r.height, cm.getPixelSize(), 0);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns all display modes available for this
|
||||
* {@code GraphicsDevice}.
|
||||
* The returned display modes are allowed to have a refresh rate
|
||||
* {@link DisplayMode#REFRESH_RATE_UNKNOWN} if it is indeterminate.
|
||||
* Likewise, the returned display modes are allowed to have a bit depth
|
||||
* {@link DisplayMode#BIT_DEPTH_MULTI} if it is indeterminate or if multiple
|
||||
* bit depths are supported.
|
||||
* @return all of the display modes available for this graphics device.
|
||||
* @since 1.4
|
||||
*/
|
||||
public DisplayMode[] getDisplayModes() {
|
||||
return new DisplayMode[] { getDisplayMode() };
|
||||
}
|
||||
|
||||
/**
|
||||
* This method returns the number of bytes available in
|
||||
* accelerated memory on this device.
|
||||
* Some images are created or cached
|
||||
* in accelerated memory on a first-come,
|
||||
* first-served basis. On some operating systems,
|
||||
* this memory is a finite resource. Calling this method
|
||||
* and scheduling the creation and flushing of images carefully may
|
||||
* enable applications to make the most efficient use of
|
||||
* that finite resource.
|
||||
* <br>
|
||||
* Note that the number returned is a snapshot of how much
|
||||
* memory is available; some images may still have problems
|
||||
* being allocated into that memory. For example, depending
|
||||
* on operating system, driver, memory configuration, and
|
||||
* thread situations, the full extent of the size reported
|
||||
* may not be available for a given image. There are further
|
||||
* inquiry methods on the {@link ImageCapabilities} object
|
||||
* associated with a VolatileImage that can be used to determine
|
||||
* whether a particular VolatileImage has been created in accelerated
|
||||
* memory.
|
||||
* @return number of bytes available in accelerated memory.
|
||||
* A negative return value indicates that the amount of accelerated memory
|
||||
* on this GraphicsDevice is indeterminate.
|
||||
* @see java.awt.image.VolatileImage#flush
|
||||
* @see ImageCapabilities#isAccelerated
|
||||
* @since 1.4
|
||||
*/
|
||||
public int getAvailableAcceleratedMemory() {
|
||||
return -1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns whether the given level of translucency is supported by
|
||||
* this graphics device.
|
||||
*
|
||||
* @param translucencyKind a kind of translucency support
|
||||
* @return whether the given translucency kind is supported
|
||||
*
|
||||
* @since 1.7
|
||||
*/
|
||||
public boolean isWindowTranslucencySupported(WindowTranslucency translucencyKind) {
|
||||
switch (translucencyKind) {
|
||||
case PERPIXEL_TRANSPARENT:
|
||||
return isWindowShapingSupported();
|
||||
case TRANSLUCENT:
|
||||
return isWindowOpacitySupported();
|
||||
case PERPIXEL_TRANSLUCENT:
|
||||
return isWindowPerpixelTranslucencySupported();
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns whether the windowing system supports changing the shape
|
||||
* of top-level windows.
|
||||
* Note that this method may sometimes return true, but the native
|
||||
* windowing system may still not support the concept of
|
||||
* shaping (due to the bugs in the windowing system).
|
||||
*/
|
||||
static boolean isWindowShapingSupported() {
|
||||
Toolkit curToolkit = Toolkit.getDefaultToolkit();
|
||||
if (!(curToolkit instanceof SunToolkit)) {
|
||||
return false;
|
||||
}
|
||||
return ((SunToolkit)curToolkit).isWindowShapingSupported();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns whether the windowing system supports changing the opacity
|
||||
* value of top-level windows.
|
||||
* Note that this method may sometimes return true, but the native
|
||||
* windowing system may still not support the concept of
|
||||
* translucency (due to the bugs in the windowing system).
|
||||
*/
|
||||
static boolean isWindowOpacitySupported() {
|
||||
Toolkit curToolkit = Toolkit.getDefaultToolkit();
|
||||
if (!(curToolkit instanceof SunToolkit)) {
|
||||
return false;
|
||||
}
|
||||
return ((SunToolkit)curToolkit).isWindowOpacitySupported();
|
||||
}
|
||||
|
||||
boolean isWindowPerpixelTranslucencySupported() {
|
||||
/*
|
||||
* Per-pixel alpha is supported if all the conditions are TRUE:
|
||||
* 1. The toolkit is a sort of SunToolkit
|
||||
* 2. The toolkit supports translucency in general
|
||||
* (isWindowTranslucencySupported())
|
||||
* 3. There's at least one translucency-capable
|
||||
* GraphicsConfiguration
|
||||
*/
|
||||
Toolkit curToolkit = Toolkit.getDefaultToolkit();
|
||||
if (!(curToolkit instanceof SunToolkit)) {
|
||||
return false;
|
||||
}
|
||||
if (!((SunToolkit)curToolkit).isWindowTranslucencySupported()) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// TODO: cache translucency capable GC
|
||||
return getTranslucencyCapableGC() != null;
|
||||
}
|
||||
|
||||
GraphicsConfiguration getTranslucencyCapableGC() {
|
||||
// If the default GC supports translucency return true.
|
||||
// It is important to optimize the verification this way,
|
||||
// see CR 6661196 for more details.
|
||||
GraphicsConfiguration defaultGC = getDefaultConfiguration();
|
||||
if (defaultGC.isTranslucencyCapable()) {
|
||||
return defaultGC;
|
||||
}
|
||||
|
||||
// ... otherwise iterate through all the GCs.
|
||||
GraphicsConfiguration[] configs = getConfigurations();
|
||||
for (int j = 0; j < configs.length; j++) {
|
||||
if (configs[j].isTranslucencyCapable()) {
|
||||
return configs[j];
|
||||
}
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue