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processing/core/src/processing/core/PGraphicsJava2D.java at master · bchenault/processing · GitHub
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/
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src
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processing
/
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/
PGraphicsJava2D.java
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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
Part of the Processing project - http://processing.org
Copyright (c) 2013-14 The Processing Foundation
Copyright (c) 2005-13 Ben Fry and Casey Reas
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; either
version 2.1 of the License, or (at your option) any later version.
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
java
.
awt
.*;
import
java
.
awt
.
font
.
TextAttribute
;
import
java
.
awt
.
geom
.*;
import
java
.
awt
.
image
.*;
import
java
.
io
.
InputStream
;
import
java
.
util
.
Arrays
;
import
java
.
util
.
HashMap
;
import
java
.
util
.
Map
;
import
java
.
util
.
zip
.
GZIPInputStream
;
import
processing
.
data
.
XML
;
/**
* Subclass for PGraphics that implements the graphics API using Java2D.
* <p>
* To get access to the Java 2D "Graphics2D" object for the default
* renderer, use:
* <PRE>Graphics2D g2 = ((PGraphicsJava2D)g).g2;</PRE>
* This will let you do Java 2D stuff directly, but is not supported in
* any way shape or form. Which just means "have fun, but don't complain
* if it breaks."
* <p>
* Advanced <a href="http://docs.oracle.com/javase/7/docs/webnotes/tsg/TSG-Desktop/html/java2d.html">debugging notes</a> for Java2D.
*/
public
class
PGraphicsJava2D
extends
PGraphics
{
//// BufferStrategy strategy;
//// BufferedImage bimage;
//// VolatileImage vimage;
// Canvas canvas;
//// boolean useCanvas = true;
// boolean useCanvas = false;
//// boolean useRetina = true;
//// boolean useOffscreen = true; // ~40fps
// boolean useOffscreen = false;
public
Graphics2D
g2
;
// protected BufferedImage offscreen;
Composite
defaultComposite
;
GeneralPath
gpath
;
// path for contours so gpath can be closed
GeneralPath
auxPath
;
boolean
openContour
;
/// break the shape at the next vertex (next vertex() call is a moveto())
boolean
breakShape
;
/// coordinates for internal curve calculation
float
[]
curveCoordX
;
float
[]
curveCoordY
;
float
[]
curveDrawX
;
float
[]
curveDrawY
;
int
transformCount
;
AffineTransform
transformStack
[] =
new
AffineTransform
[
MATRIX_STACK_DEPTH
];
double
[]
transform
=
new
double
[
6
];
Line2D
.
Float
line
=
new
Line2D
.
Float
();
Ellipse2D
.
Float
ellipse
=
new
Ellipse2D
.
Float
();
Rectangle2D
.
Float
rect
=
new
Rectangle2D
.
Float
();
Arc2D
.
Float
arc
=
new
Arc2D
.
Float
();
protected
Color
tintColorObject
;
protected
Color
fillColorObject
;
public
boolean
fillGradient
;
public
Paint
fillGradientObject
;
protected
Color
strokeColorObject
;
public
boolean
strokeGradient
;
public
Paint
strokeGradientObject
;
//////////////////////////////////////////////////////////////
// INTERNAL
public
PGraphicsJava2D
() { }
//public void setParent(PApplet parent)
//public void setPrimary(boolean primary)
//public void setPath(String path)
// /**
// * Called in response to a resize event, handles setting the
// * new width and height internally, as well as re-allocating
// * the pixel buffer for the new size.
// *
// * Note that this will nuke any cameraMode() settings.
// */
// @Override
// public void setSize(int iwidth, int iheight) { // ignore
// width = iwidth;
// height = iheight;
//
// allocate();
// reapplySettings();
// }
/*
@Override
protected void allocate() {
// Tried this with RGB instead of ARGB for the primarySurface version,
// but didn't see any performance difference (OS X 10.6, Java 6u24).
// For 0196, also attempted RGB instead of ARGB, but that causes
// strange things to happen with blending.
// image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
if (primarySurface) {
if (useCanvas) {
if (canvas != null) {
parent.removeListeners(canvas);
parent.remove(canvas);
}
canvas = new Canvas();
canvas.setIgnoreRepaint(true);
// parent.setLayout(new BorderLayout());
// parent.add(canvas, BorderLayout.CENTER);
parent.add(canvas);
// canvas.validate();
// parent.doLayout();
if (canvas.getWidth() != width || canvas.getHeight() != height) {
PApplet.debug("PGraphicsJava2D comp size being set to " + width + "x" + height);
canvas.setSize(width, height);
} else {
PApplet.debug("PGraphicsJava2D comp size already " + width + "x" + height);
}
parent.addListeners(canvas);
// canvas.createBufferStrategy(1);
// g2 = (Graphics2D) canvas.getGraphics();
} else {
parent.updateListeners(parent); // in case they're already there
// using a compatible image here doesn't seem to provide any performance boost
if (useOffscreen) {
// Needs to be RGB otherwise there's a major performance hit [0204]
// http://code.google.com/p/processing/issues/detail?id=729
image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// GraphicsConfiguration gc = parent.getGraphicsConfiguration();
// image = gc.createCompatibleImage(width, height);
offscreen = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
// offscreen = gc.createCompatibleImage(width, height);
g2 = (Graphics2D) offscreen.getGraphics();
} else {
// System.out.println("hopefully faster " + width + " " + height);
// new Exception().printStackTrace(System.out);
GraphicsConfiguration gc = canvas.getGraphicsConfiguration();
// If not realized (off-screen, i.e the Color Selector Tool),
// gc will be null.
if (gc == null) {
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
}
image = gc.createCompatibleImage(width, height);
g2 = (Graphics2D) image.getGraphics();
}
}
} else { // not the primary surface
// Since this buffer's offscreen anyway, no need for the extra offscreen
// buffer. However, unlike the primary surface, this feller needs to be
// ARGB so that blending ("alpha" compositing) will work properly.
image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
g2 = (Graphics2D) image.getGraphics();
}
*/
/*
if (primarySurface) {
Canvas canvas = ((PSurfaceAWT) surface).canvas;
GraphicsConfiguration gc = canvas.getGraphicsConfiguration();
// If not realized (off-screen, i.e the Color Selector Tool),
// gc will be null.
if (gc == null) {
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
}
image = gc.createCompatibleImage(width, height);
g2 = (Graphics2D) image.getGraphics();
} else {
}
g2 = (Graphics2D) image.getGraphics();
}
*/
//public void dispose()
@
Override
public
PSurface
createSurface
() {
//return (surface = new PSurfaceAWT());
return
new
PSurfaceAWT
(
this
);
}
//////////////////////////////////////////////////////////////
// FRAME
@
Override
public
boolean
canDraw
() {
return
true
;
}
// @Override
// public void requestDraw() {
//// EventQueue.invokeLater(new Runnable() {
//// public void run() {
// parent.handleDraw();
//// }
//// });
// }
// Graphics2D g2old;
@
Override
public
void
beginDraw
() {
// TODO this will happen when it's offscreen.. need a better option here
if
(
image
==
null
||
((
BufferedImage
)
image
).
getWidth
() !=
width
||
((
BufferedImage
)
image
).
getHeight
() !=
height
) {
image
=
new
BufferedImage
(
width
,
height
,
BufferedImage
.
TYPE_INT_ARGB
);
}
g2
= (
Graphics2D
)
image
.
getGraphics
();
// Calling getGraphics() seems to nuke the smoothing settings
smooth
(
quality
);
/*
// NOTE: Calling image.getGraphics() will create a new Graphics context,
// even if it's for the same image that's already had a context created.
// Seems like a speed/memory issue, and also requires that all smoothing,
// stroke, font and other props be reset. Can't find a good answer about
// whether getGraphics() and dispose() on each frame is 1) better practice
// and 2) minimal overhead, however. Instinct suggests #1 may be true,
// but #2 seems a problem.
if (primarySurface && !useOffscreen) {
GraphicsConfiguration gc = canvas.getGraphicsConfiguration();
if (false) {
if (image == null || ((VolatileImage) image).validate(gc) == VolatileImage.IMAGE_INCOMPATIBLE) {
image = gc.createCompatibleVolatileImage(width, height);
g2 = (Graphics2D) image.getGraphics();
reapplySettings = true;
}
} else {
if (image == null) {
image = gc.createCompatibleImage(width, height);
PApplet.debug("created new image, type is " + image);
g2 = (Graphics2D) image.getGraphics();
reapplySettings = true;
}
}
}
if (useCanvas && primarySurface) {
if (parent.frameCount == 0) {
canvas.createBufferStrategy(2);
strategy = canvas.getBufferStrategy();
PApplet.debug("PGraphicsJava2D.beginDraw() strategy is " + strategy);
BufferCapabilities caps = strategy.getCapabilities();
caps = strategy.getCapabilities();
PApplet.debug("PGraphicsJava2D.beginDraw() caps are " +
" flipping: " + caps.isPageFlipping() +
" front/back accel: " + caps.getFrontBufferCapabilities().isAccelerated() + " " +
"/" + caps.getBackBufferCapabilities().isAccelerated());
}
GraphicsConfiguration gc = canvas.getGraphicsConfiguration();
if (bimage == null ||
bimage.getWidth() != width ||
bimage.getHeight() != height) {
PApplet.debug("PGraphicsJava2D creating new image");
bimage = gc.createCompatibleImage(width, height);
// image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
g2 = bimage.createGraphics();
defaultComposite = g2.getComposite();
reapplySettings = true;
}
}
*/
checkSettings
();
resetMatrix
();
// reset model matrix
vertexCount
=
0
;
}
@
Override
public
void
endDraw
() {
// hm, mark pixels as changed, because this will instantly do a full
// copy of all the pixels to the surface.. so that's kind of a mess.
//updatePixels();
if
(
primarySurface
) {
/*
//if (canvas != null) {
if (useCanvas) {
//System.out.println(canvas);
// alternate version
//canvas.repaint(); // ?? what to do for swapping buffers
// System.out.println("endDraw() frameCount is " + parent.frameCount);
// if (parent.frameCount != 0) {
redraw();
// }
} else if (useOffscreen) {
// don't copy the pixels/data elements of the buffered image directly,
// since it'll disable the nice speedy pipeline stuff, sending all drawing
// into a world of suck that's rough 6 trillion times slower.
synchronized (image) {
//System.out.println("inside j2d sync");
image.getGraphics().drawImage(offscreen, 0, 0, null);
}
} else {
// changed to not dispose and get on each frame,
// otherwise a new Graphics context is used on each frame
// g2.dispose();
// System.out.println("not doing anything special in endDraw()");
}
*/
}
else
{
// TODO this is probably overkill for most tasks...
loadPixels
();
}
// // Marking as modified, and then calling updatePixels() in
// // the super class, which just sets the mx1, my1, mx2, my2
// // coordinates of the modified area. This avoids doing the
// // full copy of the pixels to the surface in this.updatePixels().
// setModified();
// super.updatePixels();
// Marks pixels as modified so that the pixels will be updated.
// Also sets mx1/y1/x2/y2 so that OpenGL will pick it up.
setModified
();
g2
.
dispose
();
}
/*
private void redraw() {
// only need this check if the validate() call will use redraw()
// if (strategy == null) return;
do {
PApplet.debug("PGraphicsJava2D.redraw() top of outer do { } block");
do {
PApplet.debug("PGraphicsJava2D.redraw() top of inner do { } block");
PApplet.debug("strategy is " + strategy);
Graphics bsg = strategy.getDrawGraphics();
// if (vimage != null) {
// bsg.drawImage(vimage, 0, 0, null);
// } else {
bsg.drawImage(bimage, 0, 0, null);
// if (parent.frameCount == 0) {
// try {
// ImageIO.write(image, "jpg", new java.io.File("/Users/fry/Desktop/buff.jpg"));
// } catch (IOException e) {
// e.printStackTrace();
// }
// }
// }
bsg.dispose();
// the strategy version
// g2.dispose();
// if (!strategy.contentsLost()) {
// if (parent.frameCount != 0) {
// Toolkit.getDefaultToolkit().sync();
// }
// } else {
// System.out.println("XXXXX strategy contents lost");
// }
// }
// }
} while (strategy.contentsRestored());
PApplet.debug("PGraphicsJava2D.redraw() showing strategy");
strategy.show();
} while (strategy.contentsLost());
PApplet.debug("PGraphicsJava2D.redraw() out of do { } block");
}
*/
//////////////////////////////////////////////////////////////
// SETTINGS
//protected void checkSettings()
@
Override
protected
void
defaultSettings
() {
// if (!useCanvas) {
// // Papered over another threading issue...
// // See if this comes back now that the other issue is fixed.
//// while (g2 == null) {
//// try {
//// System.out.println("sleeping until g2 is available");
//// Thread.sleep(5);
//// } catch (InterruptedException e) { }
//// }
defaultComposite
=
g2
.
getComposite
();
// }
super
.
defaultSettings
();
}
//protected void reapplySettings()
//////////////////////////////////////////////////////////////
// HINT
@
Override
public
void
hint
(
int
which
) {
// take care of setting the hint
super
.
hint
(
which
);
// Avoid badness when drawing shorter strokes.
// http://code.google.com/p/processing/issues/detail?id=1068
// Unfortunately cannot always be enabled, because it makes the
// stroke in many standard Processing examples really gross.
if
(
which
==
ENABLE_STROKE_PURE
) {
g2
.
setRenderingHint
(
RenderingHints
.
KEY_STROKE_CONTROL
,
RenderingHints
.
VALUE_STROKE_PURE
);
}
else
if
(
which
==
DISABLE_STROKE_PURE
) {
g2
.
setRenderingHint
(
RenderingHints
.
KEY_STROKE_CONTROL
,
RenderingHints
.
VALUE_STROKE_DEFAULT
);
}
}
//////////////////////////////////////////////////////////////
// SHAPES
//////////////////////////////////////////////////////////////
// SHAPE CREATION
// @Override
// public PShape createShape(PShape source) {
// return PShapeOpenGL.createShape2D(this, source);
// }
@
Override
public
PShape
createShape
() {
return
createShape
(
PShape
.
GEOMETRY
);
}
@
Override
public
PShape
createShape
(
int
type
) {
return
createShapeImpl
(
this
,
type
);
}
@
Override
public
PShape
createShape
(
int
kind
,
float
...
p
) {
return
createShapeImpl
(
this
,
kind
,
p
);
}
static
protected
PShape
createShapeImpl
(
PGraphicsJava2D
pg
,
int
type
) {
PShape
shape
=
null
;
if
(
type
==
PConstants
.
GROUP
) {
shape
=
new
PShape
(
pg
,
PConstants
.
GROUP
);
}
else
if
(
type
==
PShape
.
PATH
) {
shape
=
new
PShape
(
pg
,
PShape
.
PATH
);
}
else
if
(
type
==
PShape
.
GEOMETRY
) {
shape
=
new
PShape
(
pg
,
PShape
.
GEOMETRY
);
}
shape
.
set3D
(
false
);
return
shape
;
}
static
protected
PShape
createShapeImpl
(
PGraphicsJava2D
pg
,
int
kind
,
float
...
p
) {
PShape
shape
=
null
;
int
len
=
p
.
length
;
if
(
kind
==
POINT
) {
if
(
len
!=
2
) {
showWarning
(
"Wrong number of parameters"
);
return
null
;
}
shape
=
new
PShape
(
pg
,
PShape
.
PRIMITIVE
);
shape
.
setKind
(
POINT
);
}
else
if
(
kind
==
LINE
) {
if
(
len
!=
4
) {
showWarning
(
"Wrong number of parameters"
);
return
null
;
}
shape
=
new
PShape
(
pg
,
PShape
.
PRIMITIVE
);
shape
.
setKind
(
LINE
);
}
else
if
(
kind
==
TRIANGLE
) {
if
(
len
!=
6
) {
showWarning
(
"Wrong number of parameters"
);
return
null
;
}
shape
=
new
PShape
(
pg
,
PShape
.
PRIMITIVE
);
shape
.
setKind
(
TRIANGLE
);
}
else
if
(
kind
==
QUAD
) {
if
(
len
!=
8
) {
showWarning
(
"Wrong number of parameters"
);
return
null
;
}
shape
=
new
PShape
(
pg
,
PShape
.
PRIMITIVE
);
shape
.
setKind
(
QUAD
);
}
else
if
(
kind
==
RECT
) {
if
(
len
!=
4
&&
len
!=
5
&&
len
!=
8
&&
len
!=
9
) {
showWarning
(
"Wrong number of parameters"
);
return
null
;
}
shape
=
new
PShape
(
pg
,
PShape
.
PRIMITIVE
);
shape
.
setKind
(
RECT
);
}
else
if
(
kind
==
ELLIPSE
) {
if
(
len
!=
4
&&
len
!=
5
) {
showWarning
(
"Wrong number of parameters"
);
return
null
;
}
shape
=
new
PShape
(
pg
,
PShape
.
PRIMITIVE
);
shape
.
setKind
(
ELLIPSE
);
}
else
if
(
kind
==
ARC
) {
if
(
len
!=
6
&&
len
!=
7
) {
showWarning
(
"Wrong number of parameters"
);
return
null
;
}
shape
=
new
PShape
(
pg
,
PShape
.
PRIMITIVE
);
shape
.
setKind
(
ARC
);
}
else
if
(
kind
==
BOX
) {
showWarning
(
"Primitive not supported in 2D"
);
}
else
if
(
kind
==
SPHERE
) {
showWarning
(
"Primitive not supported in 2D"
);
}
else
{
showWarning
(
"Unrecognized primitive type"
);
}
if
(
shape
!=
null
) {
shape
.
setParams
(
p
);
}
shape
.
set3D
(
false
);
return
shape
;
}
@
Override
public
void
beginShape
(
int
kind
) {
//super.beginShape(kind);
shape
=
kind
;
vertexCount
=
0
;
curveVertexCount
=
0
;
// set gpath to null, because when mixing curves and straight
// lines, vertexCount will be set back to zero, so vertexCount == 1
// is no longer a good indicator of whether the shape is new.
// this way, just check to see if gpath is null, and if it isn't
// then just use it to continue the shape.
gpath
=
null
;
auxPath
=
null
;
}
//public boolean edge(boolean e)
//public void normal(float nx, float ny, float nz) {
//public void textureMode(int mode)
@
Override
public
void
texture
(
PImage
image
) {
showMethodWarning
(
"texture"
);
}
@
Override
public
void
vertex
(
float
x
,
float
y
) {
curveVertexCount
=
0
;
//float vertex[];
if
(
vertexCount
==
vertices
.
length
) {
float
temp
[][] =
new
float
[
vertexCount
<<
1
][
VERTEX_FIELD_COUNT
];
System
.
arraycopy
(
vertices
,
0
,
temp
,
0
,
vertexCount
);
vertices
=
temp
;
//message(CHATTER, "allocating more vertices " + vertices.length);
}
// not everyone needs this, but just easier to store rather
// than adding another moving part to the code...
vertices
[
vertexCount
][
X
] =
x
;
vertices
[
vertexCount
][
Y
] =
y
;
vertexCount
++;
switch
(
shape
) {
case
POINTS
:
point
(
x
,
y
);
break
;
case
LINES
:
if
((
vertexCount
%
2
) ==
0
) {
line
(
vertices
[
vertexCount
-
2
][
X
],
vertices
[
vertexCount
-
2
][
Y
],
x
,
y
);
}
break
;
case
TRIANGLES
:
if
((
vertexCount
%
3
) ==
0
) {
triangle
(
vertices
[
vertexCount
-
3
][
X
],
vertices
[
vertexCount
-
3
][
Y
],
vertices
[
vertexCount
-
2
][
X
],
vertices
[
vertexCount
-
2
][
Y
],
x
,
y
);
}
break
;
case
TRIANGLE_STRIP
:
if
(
vertexCount
>=
3
) {
triangle
(
vertices
[
vertexCount
-
2
][
X
],
vertices
[
vertexCount
-
2
][
Y
],
vertices
[
vertexCount
-
1
][
X
],
vertices
[
vertexCount
-
1
][
Y
],
vertices
[
vertexCount
-
3
][
X
],
vertices
[
vertexCount
-
3
][
Y
]);
}
break
;
case
TRIANGLE_FAN
:
if
(
vertexCount
>=
3
) {
// This is an unfortunate implementation because the stroke for an
// adjacent triangle will be repeated. However, if the stroke is not
// redrawn, it will replace the adjacent line (when it lines up
// perfectly) or show a faint line (when off by a small amount).
// The alternative would be to wait, then draw the shape as a
// polygon fill, followed by a series of vertices. But that's a
// poor method when used with PDF, DXF, or other recording objects,
// since discrete triangles would likely be preferred.
triangle
(
vertices
[
0
][
X
],
vertices
[
0
][
Y
],
vertices
[
vertexCount
-
2
][
X
],
vertices
[
vertexCount
-
2
][
Y
],
x
,
y
);
}
break
;
case
QUAD
:
case
QUADS
:
if
((
vertexCount
%
4
) ==
0
) {
quad
(
vertices
[
vertexCount
-
4
][
X
],
vertices
[
vertexCount
-
4
][
Y
],
vertices
[
vertexCount
-
3
][
X
],
vertices
[
vertexCount
-
3
][
Y
],
vertices
[
vertexCount
-
2
][
X
],
vertices
[
vertexCount
-
2
][
Y
],
x
,
y
);
}
break
;
case
QUAD_STRIP
:
// 0---2---4
// | | |
// 1---3---5
if
((
vertexCount
>=
4
) && ((
vertexCount
%
2
) ==
0
)) {
quad
(
vertices
[
vertexCount
-
4
][
X
],
vertices
[
vertexCount
-
4
][
Y
],
vertices
[
vertexCount
-
2
][
X
],
vertices
[
vertexCount
-
2
][
Y
],
x
,
y
,
vertices
[
vertexCount
-
3
][
X
],
vertices
[
vertexCount
-
3
][
Y
]);
}
break
;
case
POLYGON
:
if
(
gpath
==
null
) {
gpath
=
new
GeneralPath
();
gpath
.
moveTo
(
x
,
y
);
}
else
if
(
breakShape
) {
gpath
.
moveTo
(
x
,
y
);
breakShape
=
false
;
}
else
{
gpath
.
lineTo
(
x
,
y
);
}
break
;
}
}
@
Override
public
void
vertex
(
float
x
,
float
y
,
float
z
) {
showDepthWarningXYZ
(
"vertex"
);
}
@
Override
public
void
vertex
(
float
[]
v
) {
vertex
(
v
[
X
],
v
[
Y
]);
}
@
Override
public
void
vertex
(
float
x
,
float
y
,
float
u
,
float
v
) {
showVariationWarning
(
"vertex(x, y, u, v)"
);
}
@
Override
public
void
vertex
(
float
x
,
float
y
,
float
z
,
float
u
,
float
v
) {
showDepthWarningXYZ
(
"vertex"
);
}
@
Override
public
void
beginContour
() {
if
(
openContour
) {
PGraphics
.
showWarning
(
"Already called beginContour()"
);
return
;
}
// draw contours to auxiliary path so main path can be closed later
GeneralPath
contourPath
=
auxPath
;
auxPath
=
gpath
;
gpath
=
contourPath
;
if
(
contourPath
!=
null
) {
// first contour does not break
breakShape
=
true
;
}
openContour
=
true
;
}
@
Override
public
void
endContour
() {
if
(!
openContour
) {
PGraphics
.
showWarning
(
"Need to call beginContour() first"
);
return
;
}
// close this contour
if
(
gpath
!=
null
)
gpath
.
closePath
();
// switch back to main path
GeneralPath
contourPath
=
gpath
;
gpath
=
auxPath
;
auxPath
=
contourPath
;
openContour
=
false
;
}
@
Override
public
void
endShape
(
int
mode
) {
if
(
openContour
) {
// correct automagically, notify user
endContour
();
PGraphics
.
showWarning
(
"Missing endContour() before endShape()"
);
}
if
(
gpath
!=
null
) {
// make sure something has been drawn
if
(
shape
==
POLYGON
) {
if
(
mode
==
CLOSE
) {
gpath
.
closePath
();
}
if
(
auxPath
!=
null
) {
gpath
.
append
(
auxPath
,
false
);
}
drawShape
(
gpath
);
}
}
shape
=
0
;
}
//////////////////////////////////////////////////////////////
// CLIPPING
@
Override
protected
void
clipImpl
(
float
x1
,
float
y1
,
float
x2
,
float
y2
) {
g2
.
setClip
(
new
Rectangle2D
.
Float
(
x1
,
y1
,
x2
-
x1
,
y2
-
y1
));
}
@
Override
public
void
noClip
() {
g2
.
setClip
(
null
);
}
//////////////////////////////////////////////////////////////
// BLEND
/**
* ( begin auto-generated from blendMode.xml )
*
* This is a new reference entry for Processing 2.0. It will be updated shortly.
*
* ( end auto-generated )
*
* @webref Rendering
* @param mode the blending mode to use
*/
@
Override
protected
void
blendModeImpl
() {
if
(
blendMode
==
BLEND
) {
g2
.
setComposite
(
defaultComposite
);
}
else
{
g2
.
setComposite
(
new
Composite
() {
@
Override
public
CompositeContext
createContext
(
ColorModel
srcColorModel
,
ColorModel
dstColorModel
,
RenderingHints
hints
) {
return
new
BlendingContext
(
blendMode
);
}
});
}
}
// Blending implementation cribbed from portions of Romain Guy's
// demo and terrific writeup on blending modes in Java 2D.
// http://www.curious-creature.org/2006/09/20/new-blendings-modes-for-java2d/
private
static
final
class
BlendingContext
implements
CompositeContext
{
private
int
mode
;
private
BlendingContext
(
int
mode
) {
this
.
mode
=
mode
;
}
public
void
dispose
() { }
public
void
compose
(
Raster
src
,
Raster
dstIn
,
WritableRaster
dstOut
) {
// not sure if this is really necessary, since we control our buffers
if
(
src
.
getSampleModel
().
getDataType
() !=
DataBuffer
.
TYPE_INT
||
dstIn
.
getSampleModel
().
getDataType
() !=
DataBuffer
.
TYPE_INT
||
dstOut
.
getSampleModel
().
getDataType
() !=
DataBuffer
.
TYPE_INT
) {
throw
new
IllegalStateException
(
"Source and destination must store pixels as INT."
);
}
int
width
=
Math
.
min
(
src
.
getWidth
(),
dstIn
.
getWidth
());
int
height
=
Math
.
min
(
src
.
getHeight
(),
dstIn
.
getHeight
());
int
[]
srcPixels
=
new
int
[
width
];
int
[]
dstPixels
=
new
int
[
width
];
// Java won't set the high bits when RGB, returns 0 for alpha
int
alphaFiller
= (
dstIn
.
getNumBands
() ==
3
) ? (
0xFF
<<
24
) :
0x00
;
for
(
int
y
=
0
;
y
<
height
;
y
++) {
src
.
getDataElements
(
0
,
y
,
width
,
1
,
srcPixels
);
dstIn
.
getDataElements
(
0
,
y
,
width
,
1
,
dstPixels
);
for
(
int
x
=
0
;
x
<
width
;
x
++) {
dstPixels
[
x
] =
blendColor
(
alphaFiller
|
dstPixels
[
x
],
srcPixels
[
x
],
mode
);
}
dstOut
.
setDataElements
(
0
,
y
,
width
,
1
,
dstPixels
);
}
}
}
//////////////////////////////////////////////////////////////
// BEZIER VERTICES
@
Override
public
void
bezierVertex
(
float
x1
,
float
y1
,
float
x2
,
float
y2
,
float
x3
,
float
y3
) {
bezierVertexCheck
();
gpath
.
curveTo
(
x1
,
y1
,
x2
,
y2
,
x3
,
y3
);
}
@
Override
public
void
bezierVertex
(
float
x2
,
float
y2
,
float
z2
,
float
x3
,
float
y3
,
float
z3
,
float
x4
,
float
y4
,
float
z4
) {
showDepthWarningXYZ
(
"bezierVertex"
);
}
//////////////////////////////////////////////////////////////
// QUADRATIC BEZIER VERTICES
@
Override
public
void
quadraticVertex
(
float
ctrlX
,
float
ctrlY
,
float
endX
,
float
endY
) {
bezierVertexCheck
();
Point2D
cur
=
gpath
.
getCurrentPoint
();
float
x1
= (
float
)
cur
.
getX
();
float
y1
= (
float
)
cur
.
getY
();
bezierVertex
(
x1
+ ((
ctrlX
-
x1
)*
2
/
3.0f
),
y1
+ ((
ctrlY
-
y1
)*
2
/
3.0f
),
endX
+ ((
ctrlX
-
endX
)*
2
/
3.0f
),
endY
+ ((
ctrlY
-
endY
)*
2
/
3.0f
),
endX
,
endY
);
}
@
Override
public
void
quadraticVertex
(
float
x2
,
float
y2
,
float
z2
,
float
x4
,
float
y4
,
float
z4
) {
showDepthWarningXYZ
(
"quadVertex"
);
}
//////////////////////////////////////////////////////////////
// CURVE VERTICES
@
Override
protected
void
curveVertexCheck
() {
super
.
curveVertexCheck
();
if
(
curveCoordX
==
null
) {
curveCoordX
=
new
float
[
4
];
curveCoordY
=
new
float
[
4
];
curveDrawX
=
new
float
[
4
];
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