/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */

/*

Part of the Processing project - http://processing.org

Copyright (c) 2012-15 The Processing Foundation

Copyright (c) 2004-12 Ben Fry and Casey Reas

Copyright (c) 2001-04 Massachusetts Institute of Technology

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation, version 2.1.

This library 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

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General

Public License along with this library; if not, write to the

Free Software Foundation, Inc., 59 Temple Place, Suite 330,

Boston, MA 02111-1307 USA

*/

package processing.core;

// used by link()

import java.awt.Desktop;

import java.awt.DisplayMode;

import java.awt.EventQueue;

import java.awt.FileDialog;

import java.awt.Frame;

import java.awt.GraphicsDevice;

import java.awt.GraphicsEnvironment;

import java.awt.HeadlessException;

import java.awt.Image;

import java.awt.Toolkit;

import java.awt.color.ColorSpace;

import java.awt.image.BufferedImage;

// used by loadImage() functions

import javax.imageio.ImageIO;

// allows us to remove our own MediaTracker code

import javax.swing.ImageIcon;

// used by selectInput(), selectOutput(), selectFolder()

import javax.swing.JFileChooser;

// used to present the fullScreen() warning about Spaces on OS X

import javax.swing.JOptionPane;

// used by desktopFile() method

import javax.swing.filechooser.FileSystemView;

// loadXML() error handling

import javax.xml.parsers.ParserConfigurationException;

import org.xml.sax.SAXException;

import java.io.*;

import java.lang.reflect.*;

import java.net.*;

import java.nio.charset.StandardCharsets;

import java.text.*;

import java.util.*;

import java.util.regex.*;

import java.util.zip.*;

import processing.data.*;

import processing.event.*;

import processing.opengl.*;

/**

* Base class for all sketches that use processing.core.

* <p/>

* The <A HREF="https://github.com/processing/processing/wiki/Window-Size-and-Full-Screen">

* Window Size and Full Screen</A> page on the Wiki has useful information

* about sizing, multiple displays, full screen, etc.

* <p/>

* Processing uses active mode rendering. All animation tasks happen on the

* "Processing Animation Thread". The setup() and draw() methods are handled

* by that thread, and events (like mouse movement and key presses, which are

* fired by the event dispatch thread or EDT) are queued to be safely handled

* at the end of draw().

* <p/>

* Starting with 3.0a6, blit operations are on the EDT, so as not to cause

* GUI problems with Swing and AWT. In the case of the default renderer, the

* sketch renders to an offscreen image, then the EDT is asked to bring that

* image to the screen.

* <p/>

* For code that needs to run on the EDT, use EventQueue.invokeLater(). When

* doing so, be careful to synchronize between that code and the Processing

* animation thread. That is, you can't call Processing methods from the EDT

* or at any random time from another thread. Use of a callback function or

* the registerXxx() methods in PApplet can help ensure that your code doesn't

* do something naughty.

* <p/>

* As of Processing 3.0, we have removed Applet as the base class for PApplet.

* This means that we can remove lots of legacy code, however one downside is

* that it's no longer possible (without extra code) to embed a PApplet into

* another Java application.

* <p/>

* As of Processing 3.0, we have discontinued support for versions of Java

* prior to 1.8. We don't have enough people to support it, and for a

* project of our (tiny) size, we should be focusing on the future, rather

* than working around legacy Java code.

*/

public class PApplet implements PConstants {

/** Full name of the Java version (i.e. 1.5.0_11). */

static public final String javaVersionName =

System.getProperty("java.version");

// /** Short name of Java version, i.e. 1.8. */

// static public final String javaVersionShort =

// //javaVersionName.substring(0, 3);

// javaVersionName.substring(0, javaVersionName.indexOf(".", 2));

// // can't use this one, it's 1.8.0 and breaks things

// //javaVersionName.substring(0, javaVersionName.indexOf("_"));

static public final int javaPlatform =

PApplet.parseInt(PApplet.split(javaVersionName, '.')[1]);

// static {

// try {

// javaPlatform = PApplet.split(javaVersionName, '.')[1];

// } catch (Exception e) {

// javaPlatform = "8"; // set a default in case

// }

// }

/**

* Version of Java that's in use, whether 1.1 or 1.3 or whatever,

* stored as a float.

* <p>

* Note that because this is stored as a float, the values may not be

* <EM>exactly</EM> 1.3 or 1.4. The PDE will make 1.8 or whatever into

* a float automatically, so outside the PDE, make sure you're comparing

* against 1.3f or 1.4f, which will have the same amount of error

* (i.e. 1.40000001). This could just be a double, but since Processing

* only uses floats, it's safer as a float because specifying a double

* (with this narrow case especially) with the preprocessor is awkward.

* <p>

* @deprecated Java 10 is around the corner. Use javaPlatform when you need

* a number for comparisons, i.e. "if (javaPlatform >= 7)".

*/

@Deprecated

public static final float javaVersion =

new Float(javaVersionName.substring(0, 3));

// public static final float javaVersion =

// new Float(javaVersionName.substring(0, javaVersionName.indexOf(".", 2))).floatValue();

// // Making this a String in 3.0, in anticipation of Java 10

// public static final String javaVersion = "1." + javaPlatform;

/**

* Current platform in use, one of the

* PConstants WINDOWS, MACOSX, MACOS9, LINUX or OTHER.

*/

static public int platform;

static {

String osname = System.getProperty("os.name");

if (osname.indexOf("Mac") != -1) {

platform = MACOSX;

} else if (osname.indexOf("Windows") != -1) {

platform = WINDOWS;

} else if (osname.equals("Linux")) { // true for the ibm vm

platform = LINUX;

} else {

platform = OTHER;

}

}

/**

* Whether to use native (AWT) dialogs for selectInput and selectOutput.

* The native dialogs on Linux tend to be pretty awful. With selectFolder()

* this is ignored, because there is no native folder selector, except on

* Mac OS X. On OS X, the native folder selector will be used unless

* useNativeSelect is set to false.

*/

static public boolean useNativeSelect = (platform != LINUX);

/** The PGraphics renderer associated with this PApplet */

public PGraphics g;

/**

* ( begin auto-generated from displayWidth.xml )

*

* System variable which stores the width of the computer screen. For

* example, if the current screen resolution is 1024x768,

* <b>displayWidth</b> is 1024 and <b>displayHeight</b> is 768. These

* dimensions are useful when exporting full-screen applications.

* <br /><br />

* To ensure that the sketch takes over the entire screen, use "Present"

* instead of "Run". Otherwise the window will still have a frame border

* around it and not be placed in the upper corner of the screen. On Mac OS

* X, the menu bar will remain present unless "Present" mode is used.

*

* ( end auto-generated )

*/

public int displayWidth;

/**

* ( begin auto-generated from displayHeight.xml )

*

* System variable that stores the height of the computer screen. For

* example, if the current screen resolution is 1024x768,

* <b>displayWidth</b> is 1024 and <b>displayHeight</b> is 768. These

* dimensions are useful when exporting full-screen applications.

* <br /><br />

* To ensure that the sketch takes over the entire screen, use "Present"

* instead of "Run". Otherwise the window will still have a frame border

* around it and not be placed in the upper corner of the screen. On Mac OS

* X, the menu bar will remain present unless "Present" mode is used.

*

* ( end auto-generated )

*/

public int displayHeight;

/** A leech graphics object that is echoing all events. */

public PGraphics recorder;

/**

* Command line options passed in from main().

* This does not include the arguments passed in to PApplet itself.

* @see PApplet#main

*/

public String[] args;

/**

* Path to sketch folder. Previously undocumented, made private in 3.0a5

* so that people use the sketchPath() method and it's inited properly.

* Call sketchPath() once to set the default.

*/

private String sketchPath;

// public String sketchPath;

static final boolean DEBUG = false;

// static final boolean DEBUG = true;

/** Default width and height for sketch when not specified */

static public final int DEFAULT_WIDTH = 100;

static public final int DEFAULT_HEIGHT = 100;

// /**

// * Exception thrown when size() is called the first time.

// * <p>

// * This is used internally so that setup() is forced to run twice

// * when the renderer is changed. This is the only way for us to handle

// * invoking the new renderer while also in the midst of rendering.

// */

// static public class RendererChangeException extends RuntimeException { }

/**

* true if no size() command has been executed. This is used to wait until

* a size has been set before placing in the window and showing it.

*/

// public boolean defaultSize;

// /** Storage for the current renderer size to avoid re-allocation. */

// Dimension currentSize = new Dimension();

/**

* ( begin auto-generated from pixels.xml )

*

* Array containing the values for all the pixels in the display window.

* These values are of the color datatype. This array is the size of the

* display window. For example, if the image is 100x100 pixels, there will

* be 10000 values and if the window is 200x300 pixels, there will be 60000

* values. The <b>index</b> value defines the position of a value within

* the array. For example, the statement <b>color b = pixels[230]</b> will

* set the variable <b>b</b> to be equal to the value at that location in

* the array.<br />

* <br />

* Before accessing this array, the data must loaded with the

* <b>loadPixels()</b> function. After the array data has been modified,

* the <b>updatePixels()</b> function must be run to update the changes.

* Without <b>loadPixels()</b>, running the code may (or will in future

* releases) result in a NullPointerException.

*

* ( end auto-generated )

*

* @webref image:pixels

* @see PApplet#loadPixels()

* @see PApplet#updatePixels()

* @see PApplet#get(int, int, int, int)

* @see PApplet#set(int, int, int)

* @see PImage

*/

public int[] pixels;

/**

* ( begin auto-generated from width.xml )

*

* System variable which stores the width of the display window. This value

* is set by the first parameter of the <b>size()</b> function. For

* example, the function call <b>size(320, 240)</b> sets the <b>width</b>

* variable to the value 320. The value of <b>width</b> is zero until

* <b>size()</b> is called.

*

* ( end auto-generated )

* @webref environment

* @see PApplet#height

* @see PApplet#size(int, int)

*/

public int width = DEFAULT_WIDTH;

/**

* ( begin auto-generated from height.xml )

*

* System variable which stores the height of the display window. This

* value is set by the second parameter of the <b>size()</b> function. For

* example, the function call <b>size(320, 240)</b> sets the <b>height</b>

* variable to the value 240. The value of <b>height</b> is zero until

* <b>size()</b> is called.

*

* ( end auto-generated )

*

* @webref environment

* @see PApplet#width

* @see PApplet#size(int, int)

*/

public int height = DEFAULT_HEIGHT;

/**

* ( begin auto-generated from pixelWidth.xml )

*

* When <b>pixelDensity(2)</d> is used to make use of a high resolution

* display (called a Retina display on OS X or high-dpi on Windows and

* Linux), the width and height of the sketch do not change, but the

* number of pixels is doubled. As a result, all operations that use pixels

* (like <b>loadPixels()</b>, <b>get()</b>, <b>set()</b>, etc.) happen

* in this doubled space. As a convenience, the variables <b>pixelWidth</b>

* and <b>pixelHeight<b> hold the actual width and height of the sketch

* in pixels. This is useful for any sketch that uses the <b>pixels[]</b>

* array, for instance, because the number of elements in the array will

* be <b>pixelWidth*pixelHeight</b>, not <b>width*height</b>.

*

* ( end auto-generated )

*

* @webref environment

* @see PApplet#pixelHeight

* @see #pixelDensity(int)

* @see #displayDensity()

*/

public int pixelWidth;

/**

* ( begin auto-generated from pixelHeight.xml )

*

* When <b>pixelDensity(2)</d> is used to make use of a high resolution

* display (called a Retina display on OS X or high-dpi on Windows and

* Linux), the width and height of the sketch do not change, but the

* number of pixels is doubled. As a result, all operations that use pixels

* (like <b>loadPixels()</b>, <b>get()</b>, <b>set()</b>, etc.) happen

* in this doubled space. As a convenience, the variables <b>pixelWidth</b>

* and <b>pixelHeight<b> hold the actual width and height of the sketch

* in pixels. This is useful for any sketch that uses the <b>pixels[]</b>

* array, for instance, because the number of elements in the array will

* be <b>pixelWidth*pixelHeight</b>, not <b>width*height</b>.

*

* ( end auto-generated )

*

* @webref environment

* @see PApplet#pixelWidth

* @see #pixelDensity(int)

* @see #displayDensity()

*/

public int pixelHeight;

/**

* Keeps track of ENABLE_KEY_REPEAT hint

*/

protected boolean keyRepeatEnabled = false;

/**

* ( begin auto-generated from mouseX.xml )

*

* The system variable <b>mouseX</b> always contains the current horizontal

* coordinate of the mouse.

*

* ( end auto-generated )

* @webref input:mouse

* @see PApplet#mouseY

* @see PApplet#pmouseX

* @see PApplet#pmouseY

* @see PApplet#mousePressed

* @see PApplet#mousePressed()

* @see PApplet#mouseReleased()

* @see PApplet#mouseClicked()

* @see PApplet#mouseMoved()

* @see PApplet#mouseDragged()

* @see PApplet#mouseButton

* @see PApplet#mouseWheel(MouseEvent)

*

*

*/

public int mouseX;

/**

* ( begin auto-generated from mouseY.xml )

*

* The system variable <b>mouseY</b> always contains the current vertical

* coordinate of the mouse.

*

* ( end auto-generated )

* @webref input:mouse

* @see PApplet#mouseX

* @see PApplet#pmouseX

* @see PApplet#pmouseY

* @see PApplet#mousePressed

* @see PApplet#mousePressed()

* @see PApplet#mouseReleased()

* @see PApplet#mouseClicked()

* @see PApplet#mouseMoved()

* @see PApplet#mouseDragged()

* @see PApplet#mouseButton

* @see PApplet#mouseWheel(MouseEvent)

*

*/

public int mouseY;

/**

* ( begin auto-generated from pmouseX.xml )

*

* The system variable <b>pmouseX</b> always contains the horizontal

* position of the mouse in the frame previous to the current frame.<br />

* <br />

* You may find that <b>pmouseX</b> and <b>pmouseY</b> have different

* values inside <b>draw()</b> and inside events like <b>mousePressed()</b>

* and <b>mouseMoved()</b>. This is because they're used for different

* roles, so don't mix them. Inside <b>draw()</b>, <b>pmouseX</b> and

* <b>pmouseY</b> update only once per frame (once per trip through your

* <b>draw()</b>). But, inside mouse events, they update each time the

* event is called. If they weren't separated, then the mouse would be read

* only once per frame, making response choppy. If the mouse variables were

* always updated multiple times per frame, using <NOBR><b>line(pmouseX,

* pmouseY, mouseX, mouseY)</b></NOBR> inside <b>draw()</b> would have lots

* of gaps, because <b>pmouseX</b> may have changed several times in

* between the calls to <b>line()</b>. Use <b>pmouseX</b> and

* <b>pmouseY</b> inside <b>draw()</b> if you want values relative to the

* previous frame. Use <b>pmouseX</b> and <b>pmouseY</b> inside the mouse

* functions if you want continuous response.

*

* ( end auto-generated )

* @webref input:mouse

* @see PApplet#mouseX

* @see PApplet#mouseY

* @see PApplet#pmouseY

* @see PApplet#mousePressed

* @see PApplet#mousePressed()

* @see PApplet#mouseReleased()

* @see PApplet#mouseClicked()

* @see PApplet#mouseMoved()

* @see PApplet#mouseDragged()

* @see PApplet#mouseButton

* @see PApplet#mouseWheel(MouseEvent)

*/

public int pmouseX;

/**

* ( begin auto-generated from pmouseY.xml )

*

* The system variable <b>pmouseY</b> always contains the vertical position

* of the mouse in the frame previous to the current frame. More detailed

* information about how <b>pmouseY</b> is updated inside of <b>draw()</b>

* and mouse events is explained in the reference for <b>pmouseX</b>.

*

* ( end auto-generated )

* @webref input:mouse

* @see PApplet#mouseX

* @see PApplet#mouseY

* @see PApplet#pmouseX

* @see PApplet#mousePressed

* @see PApplet#mousePressed()

* @see PApplet#mouseReleased()

* @see PApplet#mouseClicked()

* @see PApplet#mouseMoved()

* @see PApplet#mouseDragged()

* @see PApplet#mouseButton

* @see PApplet#mouseWheel(MouseEvent)

*/

public int pmouseY;

/**

* Previous mouseX/Y for the draw loop, separated out because this is

* separate from the pmouseX/Y when inside the mouse event handlers.

* See emouseX/Y for an explanation.

*/

protected int dmouseX, dmouseY;

/**

* The pmouseX/Y for the event handlers (mousePressed(), mouseDragged() etc)

* these are different because mouse events are queued to the end of

* draw, so the previous position has to be updated on each event,

* as opposed to the pmouseX/Y that's used inside draw, which is expected

* to be updated once per trip through draw().

*/

protected int emouseX, emouseY;

/**

* Used to set pmouseX/Y to mouseX/Y the first time mouseX/Y are used,

* otherwise pmouseX/Y are always zero, causing a nasty jump.

* <p>

* Just using (frameCount == 0) won't work since mouseXxxxx()

* may not be called until a couple frames into things.

* <p>

* @deprecated Please refrain from using this variable, it will be removed

* from future releases of Processing because it cannot be used consistently

* across platforms and input methods.

*/

@Deprecated

public boolean firstMouse = true;

/**

* ( begin auto-generated from mouseButton.xml )

*

* Processing automatically tracks if the mouse button is pressed and which

* button is pressed. The value of the system variable <b>mouseButton</b>

* is either <b>LEFT</b>, <b>RIGHT</b>, or <b>CENTER</b> depending on which

* button is pressed.

*

* ( end auto-generated )

*

* <h3>Advanced:</h3>

*

* If running on Mac OS, a ctrl-click will be interpreted as the right-hand

* mouse button (unlike Java, which reports it as the left mouse).

* @webref input:mouse

* @see PApplet#mouseX

* @see PApplet#mouseY

* @see PApplet#pmouseX

* @see PApplet#pmouseY

* @see PApplet#mousePressed

* @see PApplet#mousePressed()

* @see PApplet#mouseReleased()

* @see PApplet#mouseClicked()

* @see PApplet#mouseMoved()

* @see PApplet#mouseDragged()

* @see PApplet#mouseWheel(MouseEvent)

*/

public int mouseButton;

/**

* ( begin auto-generated from mousePressed_var.xml )

*

* Variable storing if a mouse button is pressed. The value of the system

* variable <b>mousePressed</b> is true if a mouse button is pressed and

* false if a button is not pressed.

*

* ( end auto-generated )

* @webref input:mouse

* @see PApplet#mouseX

* @see PApplet#mouseY

* @see PApplet#pmouseX

* @see PApplet#pmouseY

* @see PApplet#mousePressed()

* @see PApplet#mouseReleased()

* @see PApplet#mouseClicked()

* @see PApplet#mouseMoved()

* @see PApplet#mouseDragged()

* @see PApplet#mouseButton

* @see PApplet#mouseWheel(MouseEvent)

*/

public boolean mousePressed;

/** @deprecated Use a mouse event handler that passes an event instead. */

@Deprecated

public MouseEvent mouseEvent;

/**

* ( begin auto-generated from key.xml )

*

* The system variable <b>key</b> always contains the value of the most

* recent key on the keyboard that was used (either pressed or released).

* <br/> <br/>

* For non-ASCII keys, use the <b>keyCode</b> variable. The keys included

* in the ASCII specification (BACKSPACE, TAB, ENTER, RETURN, ESC, and

* DELETE) do not require checking to see if they key is coded, and you

* should simply use the <b>key</b> variable instead of <b>keyCode</b> If

* you're making cross-platform projects, note that the ENTER key is

* commonly used on PCs and Unix and the RETURN key is used instead on

* Macintosh. Check for both ENTER and RETURN to make sure your program

* will work for all platforms.

*

* ( end auto-generated )

*

* <h3>Advanced</h3>

*

* Last key pressed.

* <p>

* If it's a coded key, i.e. UP/DOWN/CTRL/SHIFT/ALT,

* this will be set to CODED (0xffff or 65535).

*

* @webref input:keyboard

* @see PApplet#keyCode

* @see PApplet#keyPressed

* @see PApplet#keyPressed()

* @see PApplet#keyReleased()

*/

public char key;

/**

* ( begin auto-generated from keyCode.xml )

*

* The variable <b>keyCode</b> is used to detect special keys such as the

* UP, DOWN, LEFT, RIGHT arrow keys and ALT, CONTROL, SHIFT. When checking

* for these keys, it's first necessary to check and see if the key is

* coded. This is done with the conditional "if (key == CODED)" as shown in

* the example.

* <br/> <br/>

* The keys included in the ASCII specification (BACKSPACE, TAB, ENTER,

* RETURN, ESC, and DELETE) do not require checking to see if they key is

* coded, and you should simply use the <b>key</b> variable instead of

* <b>keyCode</b> If you're making cross-platform projects, note that the

* ENTER key is commonly used on PCs and Unix and the RETURN key is used

* instead on Macintosh. Check for both ENTER and RETURN to make sure your

* program will work for all platforms.

* <br/> <br/>

* For users familiar with Java, the values for UP and DOWN are simply

* shorter versions of Java's KeyEvent.VK_UP and KeyEvent.VK_DOWN. Other

* keyCode values can be found in the Java <a

* href="http://download.oracle.com/javase/6/docs/api/java/awt/event/KeyEvent.html">KeyEvent</a> reference.

*

* ( end auto-generated )

*

* <h3>Advanced</h3>

* When "key" is set to CODED, this will contain a Java key code.

* <p>

* For the arrow keys, keyCode will be one of UP, DOWN, LEFT and RIGHT.

* Also available are ALT, CONTROL and SHIFT. A full set of constants

* can be obtained from java.awt.event.KeyEvent, from the VK_XXXX variables.

*

* @webref input:keyboard

* @see PApplet#key

* @see PApplet#keyPressed

* @see PApplet#keyPressed()

* @see PApplet#keyReleased()

*/

public int keyCode;

/**

* ( begin auto-generated from keyPressed_var.xml )

*

* The boolean system variable <b>keyPressed</b> is <b>true</b> if any key

* is pressed and <b>false</b> if no keys are pressed.

*

* ( end auto-generated )

* @webref input:keyboard

* @see PApplet#key

* @see PApplet#keyCode

* @see PApplet#keyPressed()

* @see PApplet#keyReleased()

*/

public boolean keyPressed;

/**

* The last KeyEvent object passed into a mouse function.

* @deprecated Use a key event handler that passes an event instead.

*/

@Deprecated

public KeyEvent keyEvent;

/**

* ( begin auto-generated from focused.xml )

*

* Confirms if a Processing program is "focused", meaning that it is active

* and will accept input from mouse or keyboard. This variable is "true" if

* it is focused and "false" if not. This variable is often used when you

* want to warn people they need to click on or roll over an applet before

* it will work.

*

* ( end auto-generated )

* @webref environment

*/

public boolean focused = false;

// /**

// * Confirms if a Processing program is running inside a web browser. This

// * variable is "true" if the program is online and "false" if not.

// */

// @Deprecated

// public boolean online = false;

// // This is deprecated because it's poorly named (and even more poorly

// // understood). Further, we'll probably be removing applets soon, in which

// // case this won't work at all. If you want this feature, you can check

// // whether getAppletContext() returns null.

/**

* Time in milliseconds when the applet was started.

* <p>

* Used by the millis() function.

*/

long millisOffset = System.currentTimeMillis();

/**

* ( begin auto-generated from frameRate_var.xml )

*

* The system variable <b>frameRate</b> contains the approximate frame rate

* of the software as it executes. The initial value is 10 fps and is

* updated with each frame. The value is averaged (integrated) over several

* frames. As such, this value won't be valid until after 5-10 frames.

*

* ( end auto-generated )

* @webref environment

* @see PApplet#frameRate(float)

* @see PApplet#frameCount

*/

public float frameRate = 10;

protected boolean looping = true;

/** flag set to true when a redraw is asked for by the user */

protected boolean redraw = true;

/**

* ( begin auto-generated from frameCount.xml )

*

* The system variable <b>frameCount</b> contains the number of frames

* displayed since the program started. Inside <b>setup()</b> the value is

* 0 and and after the first iteration of draw it is 1, etc.

*

* ( end auto-generated )

* @webref environment

* @see PApplet#frameRate(float)

* @see PApplet#frameRate

*/

public int frameCount;

/** true if the sketch has stopped permanently. */

public volatile boolean finished;

/** used by the UncaughtExceptionHandler, so has to be static */

static Throwable uncaughtThrowable;

// public, but undocumented.. removing for 3.0a5

// /**

// * true if the animation thread is paused.

// */

// public volatile boolean paused;

/**

* true if exit() has been called so that things shut down

* once the main thread kicks off.

*/

protected boolean exitCalled;

// messages to send if attached as an external vm

/**

* Position of the upper-lefthand corner of the editor window

* that launched this applet.

*/

static public final String ARGS_EDITOR_LOCATION = "--editor-location";

static public final String ARGS_EXTERNAL = "--external";

/**

* Location for where to position the applet window on screen.

* <p>

* This is used by the editor to when saving the previous applet

* location, or could be used by other classes to launch at a

* specific position on-screen.

*/

static public final String ARGS_LOCATION = "--location";

/** Used by the PDE to suggest a display (set in prefs, passed on Run) */

static public final String ARGS_DISPLAY = "--display";

// static public final String ARGS_SPAN_DISPLAYS = "--span";

static public final String ARGS_WINDOW_COLOR = "--window-color";

static public final String ARGS_PRESENT = "--present";

static public final String ARGS_STOP_COLOR = "--stop-color";

static public final String ARGS_HIDE_STOP = "--hide-stop";

/**

* Allows the user or PdeEditor to set a specific sketch folder path.

* <p>

* Used by PdeEditor to pass in the location where saveFrame()

* and all that stuff should write things.

*/

static public final String ARGS_SKETCH_FOLDER = "--sketch-path";

/**

* When run externally to a PdeEditor,

* this is sent by the sketch when it quits.

*/

static public final String EXTERNAL_STOP = "__STOP__";

/**

* When run externally to a PDE Editor, this is sent by the applet

* whenever the window is moved.

* <p>

* This is used so that the editor can re-open the sketch window

* in the same position as the user last left it.

*/

static public final String EXTERNAL_MOVE = "__MOVE__";

/** true if this sketch is being run by the PDE */

boolean external = false;

static final String ERROR_MIN_MAX =

"Cannot use min() or max() on an empty array.";

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

protected PSurface surface;

public PSurface getSurface() {

return surface;

}

/**

* A dummy frame to keep compatibility with 2.x code

* and encourage users to update.

*/

public Frame frame;

// public Frame getFrame() {

// return frame;

// }

//

//

// public void setFrame(Frame frame) {

// this.frame = frame;

// }

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

// /**

// * Applet initialization. This can do GUI work because the components have

// * not been 'realized' yet: things aren't visible, displayed, etc.

// */

// public void init() {

//// println("init() called " + Integer.toHexString(hashCode()));

// // using a local version here since the class variable is deprecated

//// Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();

//// screenWidth = screen.width;

//// screenHeight = screen.height;

//

// defaultSize = true;

// finished = false; // just for clarity

//

// // this will be cleared by draw() if it is not overridden

// looping = true;

// redraw = true; // draw this guy at least once

// firstMouse = true;

//

// // calculated dynamically on first call

//// // Removed in 2.1.2, brought back for 2.1.3. Usually sketchPath is set

//// // inside runSketch(), but if this sketch takes care of calls to init()

//// // when PApplet.main() is not used (i.e. it's in a Java application).

//// // THe path needs to be set here so that loadXxxx() functions work.

//// if (sketchPath == null) {

//// sketchPath = calcSketchPath();

//// }

//

// // set during Surface.initFrame()

//// // Figure out the available display width and height.

//// // No major problem if this fails, we have to try again anyway in

//// // handleDraw() on the first (== 0) frame.

//// checkDisplaySize();

//

//// // Set the default size, until the user specifies otherwise

//// int w = sketchWidth();

//// int h = sketchHeight();

//// defaultSize = (w == DEFAULT_WIDTH) && (h == DEFAULT_HEIGHT);

////

//// g = makeGraphics(w, h, sketchRenderer(), null, true);

//// // Fire component resize event

//// setSize(w, h);

//// setPreferredSize(new Dimension(w, h));

////

//// width = g.width;

//// height = g.height;

//

// surface.startThread();

// }

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

boolean insideSettings;

String renderer = JAVA2D;

// int quality = 2;

int smooth = 1; // default smoothing (whatever that means for the renderer)

boolean fullScreen;

int display = -1; // use default

GraphicsDevice[] displayDevices;

// Unlike the others above, needs to be public to support

// the pixelWidth and pixelHeight fields.

public int pixelDensity = 1;

String outputPath;

OutputStream outputStream;

// Background default needs to be different from the default value in

// PGraphics.backgroundColor, otherwise size(100, 100) bg spills over.

// https://github.com/processing/processing/issues/2297

int windowColor = 0xffDDDDDD;

/**

* @param method "size" or "fullScreen"

* @param args parameters passed to the function so we can show the user

* @return true if safely inside the settings() method

*/

boolean insideSettings(String method, Object... args) {

if (insideSettings) {

return true;

}

final String url = "https://processing.org/reference/" + method + "_.html";

if (!external) { // post a warning for users of Eclipse and other IDEs

StringList argList = new StringList(args);

System.err.println("When not using the PDE, " + method + "() can only be used inside settings().");

System.err.println("Remove the " + method + "() method from setup(), and add the following:");

System.err.println("public void settings() {");

System.err.println(" " + method + "(" + argList.join(", ") + ");");

System.err.println("}");

}

throw new IllegalStateException(method + "() cannot be used here, see " + url);

}

void handleSettings() {

insideSettings = true;

// Need the list of display devices to be queried already for usage below.

// https://github.com/processing/processing/issues/3295

// https://github.com/processing/processing/issues/3296

// Not doing this from a static initializer because it may cause

// PApplet to cache and the values to stick through subsequent runs.

// Instead make it a runtime thing and a local variable.

GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();

GraphicsDevice device = ge.getDefaultScreenDevice();

displayDevices = ge.getScreenDevices();

// Default or unparsed will be -1, spanning will be 0, actual displays will

// be numbered from 1 because it's too weird to say "display 0" in prefs.

if (display > 0 && display <= displayDevices.length) {

device = displayDevices[display-1];

}

// Set displayWidth and displayHeight for people still using those.

DisplayMode displayMode = device.getDisplayMode();

displayWidth = displayMode.getWidth();

displayHeight = displayMode.getHeight();

// Here's where size(), fullScreen(), smooth(N) and noSmooth() might

// be called, conjuring up the demons of various rendering configurations.

settings();

if (display == SPAN && platform == MACOSX) {

// Make sure "Displays have separate Spaces" is unchecked

// in System Preferences > Mission Control

Process p = exec("defaults", "read", "com.apple.spaces", "spans-displays");

BufferedReader outReader = createReader(p.getInputStream());

BufferedReader errReader = createReader(p.getErrorStream());

StringBuilder stdout = new StringBuilder();

StringBuilder stderr = new StringBuilder();

String line = null;

try {

while ((line = outReader.readLine()) != null) {

stdout.append(line);

}

while ((line = errReader.readLine()) != null) {

stderr.append(line);

}

} catch (IOException e) {

printStackTrace(e);

}

int resultCode = -1;

try {

resultCode = p.waitFor();

} catch (InterruptedException e) { }

String result = trim(stdout.toString());

if ("0".equals(result)) {

EventQueue.invokeLater(new Runnable() {

public void run() {

final String msg =

"To use fullScreen(SPAN), first turn off “Displays have separate spaces”\n" +

"in System Preferences \u2192 Mission Control. Then log out and log back in.";

JOptionPane.showMessageDialog(null, msg, "Apple's Defaults Stink",