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

/*

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

Copyright (c) 2012-13 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;

import processing.data.*;

import processing.event.*;

import processing.event.Event;

import processing.opengl.*;

import java.applet.*;

import java.awt.*;

import java.awt.event.WindowStateListener;

import java.awt.event.ComponentAdapter;

import java.awt.event.ComponentEvent;

import java.awt.event.FocusEvent;

import java.awt.event.FocusListener;

import java.awt.event.InputEvent;

import java.awt.event.KeyListener;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseListener;

import java.awt.event.MouseMotionListener;

import java.awt.event.MouseWheelEvent;

import java.awt.event.MouseWheelListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.awt.image.*;

import java.io.*;

import java.lang.reflect.*;

import java.net.*;

import java.text.*;

import java.util.*;

import java.util.regex.*;

import java.util.zip.*;

import javax.imageio.ImageIO;

import javax.swing.JFrame;

import javax.swing.JFileChooser;

import javax.swing.filechooser.FileSystemView;

/**

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

* <p/>

* Note that you should not use AWT or Swing components inside a Processing

* applet. The surface is made to automatically update itself, and will cause

* problems with redraw of components drawn above it. If you'd like to

* integrate other Java components, see below.

* <p/>

* The <A HREF="http://wiki.processing.org/w/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/>

* As of release 0145, Processing uses active mode rendering in all cases.

* 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().

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

* When doing so, be careful to synchronize between that code (since

* invokeLater() will make your code run from the EDT) and the Processing

* animation 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 2.0, we have discontinued support for versions of Java

* prior to 1.6. 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.

* <p/>

* This class extends Applet instead of JApplet because 1) historically,

* we supported Java 1.1, which does not include Swing (without an

* additional, sizable, download), and 2) Swing is a bloated piece of crap.

* A Processing applet is a heavyweight AWT component, and can be used the

* same as any other AWT component, with or without Swing.

* <p/>

* Similarly, Processing runs in a Frame and not a JFrame. However, there's

* nothing to prevent you from embedding a PApplet into a JFrame, it's just

* that the base version uses a regular AWT frame because there's simply

* no need for Swing in that context. If people want to use Swing, they can

* embed themselves as they wish.

* <p/>

* It is possible to use PApplet, along with core.jar in other projects.

* This also allows you to embed a Processing drawing area into another Java

* application. This means you can use standard GUI controls with a Processing

* sketch. Because AWT and Swing GUI components cannot be used on top of a

* PApplet, you can instead embed the PApplet inside another GUI the way you

* would any other Component.

* <p/>

* Because the default animation thread will run at 60 frames per second,

* an embedded PApplet can make the parent application sluggish. You can use

* frameRate() to make it update less often, or you can use noLoop() and loop()

* to disable and then re-enable looping. If you want to only update the sketch

* intermittently, use noLoop() inside setup(), and redraw() whenever the

* screen needs to be updated once (or loop() to re-enable the animation

* thread). The following example embeds a sketch and also uses the noLoop()

* and redraw() methods. You need not use noLoop() and redraw() when embedding

* if you want your application to animate continuously.

* <PRE>

* public class ExampleFrame extends Frame {

*

* public ExampleFrame() {

* super("Embedded PApplet");

*

* setLayout(new BorderLayout());

* PApplet embed = new Embedded();

* add(embed, BorderLayout.CENTER);

*

* // important to call this whenever embedding a PApplet.

* // It ensures that the animation thread is started and

* // that other internal variables are properly set.

* embed.init();

* }

* }

*

* public class Embedded extends PApplet {

*

* public void setup() {

* // original setup code here ...

* size(400, 400);

*

* // prevent thread from starving everything else

* noLoop();

* }

*

* public void draw() {

* // drawing code goes here

* }

*

* public void mousePressed() {

* // do something based on mouse movement

*

* // update the screen (run draw once)

* redraw();

* }

* }

* </PRE>

* @usage Web &amp; Application

*/

public class PApplet extends Applet

implements PConstants, Runnable,

MouseListener, MouseWheelListener, MouseMotionListener, KeyListener, FocusListener

{

/**

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

* Prior to 0125, this was only the first three digits.

*/

public static final String javaVersionName =

System.getProperty("java.version");

/**

* 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. Instead, 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 for this to be a float

* because there's no good way to specify a double with the preproc.

*/

public static final float javaVersion =

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

/**

* Current platform in use.

* <p>

* Equivalent to System.getProperty("os.name"), just used internally.

*/

/**

* Current platform in use, one of the

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

*/

static public int platform;

/**

* Name associated with the current 'platform' (see PConstants.platformNames)

*/

//static public String platformName;

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;

}

}

/**

* Setting for whether to use the Quartz renderer on OS X. The Quartz

* renderer is on its way out for OS X, but Processing uses it by default

* because it's much faster than the Sun renderer. In some cases, however,

* the Quartz renderer is preferred. For instance, fonts are less thick

* when using the Sun renderer, so to improve how fonts look,

* change this setting before you call PApplet.main().

* <pre>

* static public void main(String[] args) {

* PApplet.useQuartz = false;

* PApplet.main(new String[] { "YourSketch" });

* }

* </pre>

* This setting must be called before any AWT work happens, so that's why

* it's such a terrible hack in how it's employed here. Calling setProperty()

* inside setup() is a joke, since it's long since the AWT has been invoked.

* <p/>

* On OS X with a retina display, this option is ignored, because Apple's

* Java implementation takes over and forces the Quartz renderer.

*/

// static public boolean useQuartz = true;

static public boolean useQuartz = false;

/**

* 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);

// /**

// * Modifier flags for the shortcut key used to trigger menus.

// * (Cmd on Mac OS X, Ctrl on Linux and Windows)

// */

// static public final int MENU_SHORTCUT =

// Toolkit.getDefaultToolkit().getMenuShortcutKeyMask();

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

public PGraphics g;

/** The frame containing this applet (if any) */

public Frame frame;

// disabled on retina inside init()

boolean useActive = true;

// boolean useActive = false;

// boolean useStrategy = true;

boolean useStrategy = false;

Canvas canvas;

Method revalidateMethod;

// /**

// * Usually just 0, but with multiple displays, the X and Y coordinates of

// * the screen will depend on the current screen's position relative to

// * the other displays.

// */

// public int displayX;

// public int displayY;

/**

* ( begin auto-generated from screenWidth.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 )

* @webref environment

*/

public int displayWidth;

/**

* ( begin auto-generated from screenHeight.xml )

*

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

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

* <b>screenWidth</b> is 1024 and <b>screenHeight</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 )

* @webref environment

*/

public int displayHeight;

/**

* A leech graphics object that is echoing all events.

*/

public PGraphics recorder;

/**

* Command line options passed in from main().

* <p>

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

*/

public String[] args;

/** Path to sketch folder */

public String sketchPath;

static final boolean DEBUG = false;

// static final boolean DEBUG = true;

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

static public final int DEFAULT_WIDTH = 100;

static public final int DEFAULT_HEIGHT = 100;

/**

* Minimum dimensions for the window holding an applet. This varies between

* platforms, Mac OS X 10.3 (confirmed with 10.7 and Java 6) can do any

* height but requires at least 128 pixels width. Windows XP has another

* set of limitations. And for all I know, Linux probably lets you make

* windows with negative sizes.

*/

static public final int MIN_WINDOW_WIDTH = 128;

static public final int MIN_WINDOW_HEIGHT = 128;

/**

* Gets set by main() if --present (old) or --full-screen (newer) are used,

* and is returned by sketchFullscreen() when initializing in main().

*/

// protected boolean fullScreen = false;

/**

* 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();

// volatile boolean resizeRequest;

// volatile int resizeWidth;

// volatile int resizeHeight;

/**

* ( 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;

/**

* ( 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;

/**

* ( 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.

*/

protected int dmouseX, dmouseY;

/**

* 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;

/**

* ( 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;

/** Last time in nanoseconds that frameRate was checked */

protected long frameRateLastNanos = 0;

/** As of release 0116, frameRate(60) is called as a default */

protected float frameRateTarget = 60;

protected long frameRatePeriod = 1000000000L / 60L;

protected boolean looping;

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

protected boolean redraw;

/**

* ( 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;

/**

* 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;

Object pauseObject = new Object();

Thread thread;

// 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

static final Color WINDOW_BGCOLOR = new Color(0xDD, 0xDD, 0xDD);

// 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";

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

static public final String ARGS_BGCOLOR = "--bgcolor";

/** @deprecated use --full-screen instead. */

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

static public final String ARGS_FULL_SCREEN = "--full-screen";

// static public final String ARGS_EXCLUSIVE = "--exclusive";

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 applet when it quits.

*/

//static public final String EXTERNAL_QUIT = "__QUIT__";

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;

/**

* Not official API, using internally because of the tweaks required.

*/

boolean retina;

static final String ERROR_MIN_MAX =

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

// during rev 0100 dev cycle, working on new threading model,

// but need to disable and go conservative with changes in order

// to get pdf and audio working properly first.

// for 0116, the CRUSTY_THREADS are being disabled to fix lots of bugs.

//static final boolean CRUSTY_THREADS = false; //true;

/**

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

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

*/

@Override

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;

if (checkRetina()) {

// The active-mode rendering seems to be 2x slower, so disable it

// with retina. On a non-retina machine, however, useActive seems

// the only (or best) way to handle the rendering.

useActive = false;

}

if (javaVersion >= 1.7f) {

try {

revalidateMethod = getClass().getMethod("revalidate", new Class[] {});

} catch (Exception e) { }

}

// send tab keys through to the PApplet

setFocusTraversalKeysEnabled(false);

//millisOffset = System.currentTimeMillis(); // moved to the variable declaration

finished = false; // just for clarity

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

looping = true;

redraw = true; // draw this guy once

firstMouse = true;

// these need to be inited before setup

// sizeMethods = new RegisteredMethods();

// pauseMethods = new RegisteredMethods();

// resumeMethods = new RegisteredMethods();

// preMethods = new RegisteredMethods();

// drawMethods = new RegisteredMethods();

// postMethods = new RegisteredMethods();

// mouseEventMethods = new RegisteredMethods();

// keyEventMethods = new RegisteredMethods();

// disposeMethods = new RegisteredMethods();

try {

getAppletContext();

online = true;

} catch (NullPointerException e) {

online = false;

}

// 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()

// and setup() itself (i.e. it's in a larger Java application), it'll

// still need to be set here so that fonts, etc can be retrieved.

if (sketchPath == null) {

sketchPath = calcSketchPath();

}

// 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();

Dimension size = getSize();

if ((size.width != 0) && (size.height != 0)) {

// When this PApplet is embedded inside a Java application with other

// Component objects, its size() may already be set externally (perhaps

// by a LayoutManager). In this case, honor that size as the default.

// Size of the component is set, just create a renderer.

g = makeGraphics(size.width, size.height, sketchRenderer(), null, true);

// This doesn't call setSize() or setPreferredSize() because the fact

// that a size was already set means that someone is already doing it.

} else {

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

this.defaultSize = true;

int w = sketchWidth();

int h = sketchHeight();

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;

// addListeners(); // 2.0a6

// moved out of addListeners() in 2.0a6

addComponentListener(new ComponentAdapter() {

@Override

public void componentResized(ComponentEvent e) {

// Component c = e.getComponent();

// //System.out.println("componentResized() " + c);

// Rectangle bounds = c.getBounds();

// resizeRequest = true;