processing4/core/todo.txt

0206 core (2.0a7)
X change appletViewer back to 'online'
X begin/endGL added to PGraphics/PApplet
X add hasChildren() to XML library
X   http://code.google.com/p/processing/issues/detail?id=1045

_ displayWidth/Height not being set properly before setup()
_   http://code.google.com/p/processing/issues/detail?id=1120
X   can't reproduce.. might be Java update, or multi-display issue?

constants/hints
_ bring PConstants back in line w/ previous 1.5 (can't renumber)
_ consider enable("mipmaps") instead of hint(ENABLE_MIPMAPS)
_ hint(DISABLE_LOADPIXELS) -> faster rendering in Java2D


docs (2.0a6)
_ online is there but deprecated
_   doesn't test net connection to see if 'online'
_   only tests whether running inside an applet viewer
_   remove 'online' from the docs
_ createGraphics() with no renderer param to point to JAVA2D
_ docs: P2D and P3D are now OpenGL variations
_ shader support - make decisions, Andres email, etc
_ setAntiAlias() should instead just use parent.smooth
_ antialias -> smoothMode(), smoothQuality(), quality()
_   NEAREST, BILINEAR, BICUBIC, or 0, 2, 4? (need 8x too, so maybe numbers)
_ final decision on pg.setQuality(sketchQuality())
_   should probably be setQuality(parent.sketchQuality())

X test what happens with NPE in OpenGL, does the error make sense?
_   nope, it doesn't, need to clean this up

_ move requestFocusInWindow() to safter EDT place
_ look into using BufferStrategy again to improve performance
_   there are more improvements to be made ala issue #729
_ make sure rendering is happening on the EDT
_   (hopefully fixes flicker issues)
_   change PApplet.java javadoc to reflect the change
_   Update http://wiki.processing.org/w/Troubleshooting#Flicker
_   http://code.google.com/p/processing/issues/detail?id=775
_ thread() causes weird flickering
_   http://code.google.com/p/processing/issues/detail?id=742
_ Potential race condition when resizing sketches
_   http://code.google.com/p/processing/issues/detail?id=697
_ doc: OpenGL offscreen requires primary surface to be OpenGL
_ doc: can't really change the smoothing/options on offscreen
_ Update JOGL when RC6 arrive: forum.jogamp.org/Road-to-RC6-td3866404.html

_ PUtil -> move match(), lots of other non-gui functions into own class
_   and merge it in statically via the methods code

_ memory leak when many createGraphics(..., JAVA2D) calls are used
_   http://code.google.com/p/processing/issues/detail?id=507
_   need to add clear() method so clear out ARGB surfaces
C clear() ok to add
X   decided clear(r, g, b, a) problematic since it's an exception to color model
X   and that people should use background() anyway
o   or background(r, g, b, a) would be the thing
_   clear() with a color doesn't make (verbal) sense
_   provide a way to clear the PGraphics with plain alpha

_ in PApplet.main(), windowClosing() should probably be calling 'exit()'
_   or rather, we should never call System.exit(0), ja?
_ dispose() method in PApplet should be empty so ppl can override
_   move that stuff to destroy()
_ pause()/resume() need to work on the desktop side as well
_   notify ddf when pause/resume implemented
_ stop() not called in 1.5
_   http://code.google.com/p/processing/issues/detail?id=636
_   In reply to c#1, I noticed that dispose() is getting called. stop() isn't.
_ static mode sketches seem to break ESC... noLoop() problem?
_   need to find another way to get ESC on static mode
_   b/c static mode sketches *do* finish because they have no draw()

_ selectInput() and selectOutput() freezes
_   http://code.google.com/p/processing/issues/detail?id=173
_     -> now includes a patch that addresses one specific problem
_   just nix the function and go with a callback setup
o   http://code.google.com/p/processing/issues/detail?id=445
_   decision: named callback functions
_   if can't find the function, tell people to put it in the main tab
_   inputFile() and outputFile() need a fix
_     remove them from the code, write examples for these
_     use callbacks instead
_     need to decide if you specify the function name, or if it's specific
_ Linux file chooser is gross (presumably Windows too)
_   http://code.google.com/p/processing/issues/detail?id=1014

_ fix edge + 1 issue on stroke/fill for rectangles
_   http://code.google.com/p/processing/issues/detail?id=509

_ add reference/docs for urlEncode() and urlDecode()

_ add() to add things to lists, sum() for the math (sum is used less after all)

_ add inputPath() and outputPath() -> sketch folder or sd card
_   or should this just be a change to sketchPath() on Android?
_   also because input/output won't be different (since not data folder)

_ finish adding loadStrings(BufferedReader)
_   decide if we want to keep this (and/or others?)
_   port to android

_ change how beginRecord() works.. passing around PApplet vs PGraphics is gross
_   have to pass PApplet just to make the rendering work to both renderers
_   should instead be a renderer that splits things out

_ if save() returns boolean, does saveFrame()?
_   also need to copy this over to android

_ disable smoothing on noSmooth(), use hint to do 2x vs 4x smoothing

andres 
_ simple NPE in OpenGL causes really large, not useful, stack trace
_ why is initPrimarySurface() public?
_ why is setFramerate() public? (also should be setFrameRate or just frameRate)
_ where did hintEnabled() come from?
_ remove 'params' from createImage (is it on loadImage too?)
_ OpenGL noSmooth() problems
_   http://code.google.com/p/processing/issues/detail?id=328
_ inconsistent anti-aliasing with OpenGL
_   http://code.google.com/p/processing/issues/detail?id=217
_ modelX/Y/Z broken when aiming a camera
_   http://code.google.com/p/processing/issues/detail?id=148
_ OS X slow with FSEM enabled
_   http://code.google.com/p/processing/issues/detail?id=737
_ chopping out triangles in OpenGL (though it's only 2D drawing)
_   http://code.google.com/p/processing/issues/detail?id=193
_ get() with OPENGL is grabbing the wrong coords
_   http://code.google.com/p/processing/issues/detail?id=191
_ deal with issue of single pixel seam at the edge of textures
_   should vertexTexture() divide by width/height or width-1/height-1?
_   http://code.google.com/p/processing/issues/detail?id=76
_ lousy graphics cards cause background to flicker if background() not used
_   http://code.google.com/p/processing/issues/detail?id=146
_   OPENGL sketches flicker w/ Vista when background() not used inside draw()
_   Disabling Aero scheme sometimes prevents the problem
_   Updating graphics drivers may prevent the problem 
_ text characters showing up as opaque rectangles in tga files
o   solution is to implement alpha compositing across all of P3D 
o   http://en.wikipedia.org/wiki/Alpha_compositing
_   http://code.google.com/p/processing/issues/detail?id=80
_ textAlign(CENTER) with P3D and OPENGL produces messy result
_   probably rounding error with the images
_   http://code.google.com/p/processing/issues/detail?id=65
_ when turning smoothing on, internal lines of shapes are visible
_   add an edge flag when tesselating 
_   mind the opengl tesselation flags
_   need to turn off smoothing for the interior of shapes
_   http://code.google.com/p/processing/issues/detail?id=53
_ Implement support for complex shapes when using the OpenGL renderer 
_   in opengl mode, use its tesselator
_   because the vertex calls can just come right back to regular vertex calls
_   this way we can also implement breakShape() for opengl
_   http://code.google.com/p/processing/issues/detail?id=122
_ strokeCap() and strokeJoin() for use with OPENGL
_   http://code.google.com/p/processing/issues/detail?id=123
_ ellipse scaling method isn't great
_   http://code.google.com/p/processing/issues/detail?id=87
_ improve hint(ENABLE_DEPTH_SORT) to use proper painter's algo
_   http://code.google.com/p/processing/issues/detail?id=51
_   polygon z-order depth sorting with alpha in opengl
_   complete the implementation of hint() with proper implementation
_   gl alpha on images when flipped around backwards
_     will sorting based on depth help this? also ask simon for ideas
_   need to merge sorting/drawing of lines and triangles
_     lines will occlude tris and vice versa
_     will need to split each based on the other
_     sort issues will affect both
_ Stroking a rect() leaves off the upper right pixel
_   http://code.google.com/p/processing/issues/detail?id=67
_ implement a more efficient version of blend()
_   http://code.google.com/p/processing/issues/detail?id=120
_ Implement anisotropic filtering when using OPENGL
_   http://code.google.com/p/processing/issues/detail?id=502
_ Signature issue on contributed libraries affects unrelated opengl sketches
_   http://code.google.com/p/processing/issues/detail?id=261
_ remove matrixMode(), add a projection() method
_ remove screenBlend(), textureBlend() from PGraphics et al
_ have andres take over all current GL issues in the tracker
_ opengl applet problems with tabs - needs to handle stop() and start() 
_   http://code.google.com/p/processing/issues/detail?id=196
_   stop() called between tabs/pages, start() may be called again
_   http://java.sun.com/docs/books/tutorial/deployment/applet/lifeCycle.html
_   really, stop() should just call noLoop() (and start re-enable if done)
_     and on android, start/stop can be used to save state information
_   need to fix opengl applets so that we can safely kill P3D
_ shared intf for 3D view data across PGraphicsOpenGL and PGraphicsAndroid3D
_   libraries have to do a lot of casting

2.0 / methods
_ decision on registered methods
_   remove registerPre() et al
_   add register("pause", ...) 
_   size() should be resize(), so it can be overridden (ala pause())
_   add PEvent
_ size() and resize() and whatever? 
_   should be setSize(), but that's odd for image files
_   -> resize() is fine with PImage and PGraphics... 
_   we may be inheriting the resize() from Java -> make it final?
_   add resize().. make it call setSize().
_     also needs to do a redraw if noLoop() has been called
_   the registered method for size() also needs to be called
_ need to wrap mouse/key events for p5
_   need a version that works with both android and desktop
_   also need to interleave events properly (as per report)
_ touch events.. can't do MouseEvent et al with Android
_   http://dvcs.w3.org/hg/webevents/raw-file/tip/touchevents.html
_   http://www.html5rocks.com/en/mobile/touch.html
_   decision: go with what looks like javascript/ios
_   touchEvent(), gestureEvent()?

2.0
_ PNode.getChildren() shouldn't make a new array.. toArray() can do that
_ toArray(), toArray(float[]), toVectorArray(), toVectorArray(PVector[])
_   toColorArray(), toColorArray(float[])...
_ remove blend(), add blendMode()
_ fix blue-channel bias on blend() so that blendMode() will work in 2.0
_   http://code.google.com/p/processing/issues/detail?id=475
_ load/save methods.. is it save("blah.svg") or saveSVG("blah.svg")
X   also works that way with tables
X   decision: useExtension() or something like that
_ how should stroke work w/ arcs?
_   has an effect elliptical arc
_   http://code.google.com/p/processing/issues/detail?id=130
o   decision: we should do pie, you can make the other kind w/o it
_   add an additional parameter for the others
_   http://code.google.com/p/processing/issues/detail?id=711
_ require people to put things in the data folder
_ make sure that loadXxxx() methods are used after init()
_   nasty errors when loadImage/Font/createFont/etc used outside
_   decision: add error messages where possible
_ PShape API to handle internal vertex stuff
_   add deconstruct() method for paths
_   toArray() and toVector()
_   setVertex(0, x, y), setVertex(0, x, y, z)
_ how much of com.benfry.* should go in? 
_   Table? StringIntPairs? JSON? MD5? Integrator? ColorIntegrator?
_   decision: depends on if we can think of a good name
_ if PShape3D, then is it PShape2D? or do you handle both the same?
_ svg fonts
_   would be nifty if we could convert on the fly to ttf for speed...
_   http://code.google.com/p/processing/issues/detail?id=748
_ check on DXFWriter, since it used to subclass P3D
_   at least implement is3D? 
_ sleep time needs to be set *much* higher for dormant applets
_   10s should be fine--no need to keep spinning (bad for android too)
_   just call interrupt() when it's time to get back to work
_ add methods to PShape to apply all transformations in the tree
_ need to clean up the hints in the reference/source

gui priorities
+ Label
+ Button
+ Scrollbar/Slider
- Checkbox
- Radio
. List
. Textblock
\ Knob
\ Progress bar
\ Toggle

vector
_ PVector discussion with Dan
_   jer and dan will look at their code, plus toxiclibs
_ modify PVector to include better methods for chaining operations
_   http://code.google.com/p/processing/issues/detail?id=218
_ add screen(PVector), model(PVector) and world(PVector)?

decisions to make
_ possible addition for 'implementation' variable
_   http://code.google.com/p/processing/issues/detail?id=281
_ should map() actually constrain to the low and high values?
_   or have an alternate version that does that?
_ decide whether to keep:
_   public float textWidth(char[] chars, int start, int length)
_ add version of math functions that use doubles?
_   what other methods should work with doubles? all math functions?
_   seems like internal (mostly static) things, but not graphics api
_ add shuffle methods for arrays
_   http://code.google.com/p/processing/issues/detail?id=229
_ don't allow things inside begin/endShape() that aren't possible
_   better lockout inside beginShape() to keep other things from happening
_   don't allow you to draw stroked items unless stroke() is called
_   don't allow beginShape() if shape is already set
_     (otherwise will cause some very strange errors)
_   http://code.google.com/p/processing/issues/detail?id=135
_ make determination on shape(x,y,z,w,h,d) or no
_ new PGraphics(... OutputStream) 
_   http://code.google.com/p/processing/issues/detail?id=246
_ path for selectXxxxx() functions
_   http://code.google.com/p/processing/issues/detail?id=233
_ add breakShape to the public API 
_   or handle differently in general.. nested beginPath() calls?

_ smooth() not working with applets an createGraphics(JAVA2D)
_   but works fine with applications
_   need an example of this
_   this might be a problem of the offscreen surface as RGB not RGBA
_     but that's been changed in more recent releases

looping/events
_ key and mouse events delivered out of order
_   http://code.google.com/p/processing/issues/detail?id=79
_ key/mouse events have concurrency problems with noLoop()
_   http://code.google.com/p/processing/issues/detail?id=187
_   need to say "no drawing inside mouse/key events w/ noLoop"
_ redraw() doesn't work from within draw()
_   http://code.google.com/p/processing/issues/detail?id=195

stop() mess
_ sort out destroy(), stop(), pause() et al
_   ColorSelector should stop/pause when not visible
_     right now it's doing a low-level looping
_   start()/stop() perform like onPause()/onResume()
_     all of which call pause() and resume()
_   destroy() (from Applet) calls (our) dispose()
_ destroy() shouldn't call exit()... change from lonnen
_   calls ((PApplet)this).exit() instead of stop() (since stop is pause)
_ notes
_   exit() should do the actual exit
_   if inside draw, let it finish the loop
_   if not looping, need to do it immediately
_   does stop() unwind the thread, or does the thread unwind call stop?
_   browser will call start() and stop() methods
_ need to figure out start/stop signals coming from the browser
_   is it dispose/destroy? 
_ stop() not getting called
_   http://code.google.com/p/processing/issues/detail?id=43
_   major problem for libraries
_   and start() is supposedly called by the applet viewer
_   http://java.sun.com/j2se/1.4.2/docs/api/java/applet/Applet.html#start()
_   need to track this stuff down a bit
_ when closing a sketch via the close box, make sure stop() getting called
X   found a problem for release 0133
_   test to see if it's working
_ what's up with stop() vs exit()?
_   need to get this straightened for p5 (i.e. bc has this problem)
_   make sure the main() doesn't exit until the applet has finished
_   i.e. problem with main calling itself multiple times in Alpheus
_   if exit() (or stop) is called, then System.exit() gets called,
_   even though the main() wants to keep going
_ hitting ESC in a running noLoop()ed sketch won't close the sketch?
o   work through serial examples
_ noloop ref even says that redraw will be called on resize, make sure it is
_ focus not coming through, ESC no longer working(?)
_ stop() not called in 1.5 when closing the sketch window
_   http://code.google.com/p/processing/issues/detail?id=636



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CORE / PApplet

_ PApplet.main(new String[] { "classname" }) won't pass in args
_   this means that no args are after passed to the class
_   the fix would be to use the following as the call to main()
_   PApplet.main(append(new String[] { "classname }, args));
_ check for what else inside PApplet should be static
_   maybe catch RuntimeExceptions in the called sub-functions
_   that way more stuff can be static w/o losing useful error handling
_   (emitting errors when closest to source.. i.e. w/ the filename)
o size() inside draw is missing a new call to cameraMode, etc
_ fix param() to use a sketch.properties file when run as an app
_   make this also be used in generating the html file
_ test winding polygons in different directions
_ loadBytes() needs optimization
_   don't bother using a buffering stream, just handle internally. gah!


CORE / PApplet - main()

_ hitting cmd-q when an applet is running quits p5 (on macosx)
_   but cmd-q when running externally is ok because it just quits
_   is there a way to catch cmd-q when running a sketch? 
_     so that it could avoid quitting if the sketch hasn't been stopped
_     or if the sketch window is foremost
_     maybe a hack where a new menubar is added? 


CORE / PFont and text()

_ what's the difference with ascent on loadFont vs. createFont?
_ svg font support seems nice.. add PFontSVG
_ font rotation (native font problem?) with natives?
_   http://code.google.com/p/processing/issues/detail?id=692
_ text position is quantized in JAVA2D
_   text placement is ugly, seems like fractional metrics problem
_   http://code.google.com/p/processing/issues/detail?id=99
_ text(char c) with char 0 and undefined should print nothing
_   perhaps also DEL or other nonprintables?
_   book example 25-03
_ accessors inside PFont need a lot of work
_ improve font metrics
_   http://java.sun.com/products/java-media/2D/reference/faqs/index.html#Q_How_do_I_obtain_font_metrics
_ font encoding issues 
_   java seems to force straight windows encoding.. (problem for pi fonts)
_   opentype/cff fonts don't work with live loading from the app
_   many (all?) opentype fonts won't show up or aren't supported
_     this may be only cff fonts that have trouble
_   when encoding is not the standard encoding, problematic
_     so sonata otf and sonata don't seem to have any chars at all
_ text() with a z coordinate is now using translate, very slow
X   also puts up a weird error message about translate() in 2D mode
_ make screen space fonts use get/set as well?
_   too much to debug on their own
_   unfortunately tint not set with setImpl, but...
_ not having kerning really blows
_   could this be pulled from the OpenType font stuff? 
_   it could be placed at the end of the file
_ not having fractional widths on small fonts really blows
_   screen space text looks crappy
_ working with vector fonts? 
_   need to be able to handle shapes within shapes (reverse winding)
_   ftgl: main code is in FTVectoriser
_   uses gluTessBeginContour and gluTessEndContour
_   and then does 5 step sizes for each curveto
_ show an error when using a font character that isn't available
_   maybe fall back on other characters instead?


CORE / PGraphics

_ y2 position of rectangles not same as y2 position of lines
_   happens when the rectangle is flipped on the x or y axis
_   probably a hack that draws the "last" point differently

_ lines
_   z value hack for lines is causing trouble for 2D
_     http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1089737928;start=0
_   rewrite line and stroke code, it's a buggy mess
_     lines become 2 pixels thick after a 3D transform 
_     better handling of single-pixel special case
_       flat_line_retribution is a hack, can go away


CORE / PGraphicsJava2D

_ some optimizations from zach
_   http://processing.org/discourse/yabb_beta/YaBB.cgi?board=os_core_pde;action=display;num=1121670787
_ catch sun.dc.pr.PRException?
_   http://code.google.com/p/processing/issues/detail?id=39


CORE / PGraphics3D

_ box is not opaque
_   problem is that lines are drawn second
_   one pixel lines have no z value.. argh
_   bug re: 3d depth sorting on lines
_   http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1043894019;start=0
_   http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1042004618
_   translate(58, 48, 0); 
_   rotateY(0.5);
_   box(40);


CORE / PImage

_ make loading images lighter, ala android 
_   require loadPixels to get 2D image data from images
_   only load PImage pixels when necessary (faster for java2d)
_   http://code.google.com/p/processing/issues/detail?id=60
_ loadImage() should use the faster loading methods
_   hint(DISABLE_IMAGE_CACHING)
_   add a note to the loadImage() reference page
_ figure out why 1024x768 image takes 3.5 seconds to load
_   would using a BufferedImage work better?
_   is the image actually a BufferedImage so PixelGrabber is a waste?
_ work through loadPixels in PImage, how consistent do we need to be?
_   with get() and set() methods, this gets really tricky (too slow)
_   could optimize by keeping a java image around, but table for later
_     it's too significant a change, and not enough time to test
_ callback for requestImage()
_   http://code.google.com/p/processing/issues/detail?id=641
_   might work with the selectXxxx() functions as well
_ img.get() quirks
_   http://code.google.com/p/processing/issues/detail?id=167
_ image resizing is ugly (just use java2d?)
_   also deal with copy()/blend() inaccuracies
_   http://code.google.com/p/processing/issues/detail?id=332
_ blend() bugs with identically-sized images
_   http://code.google.com/p/processing/issues/detail?id=285
_ transparency issue with JAVA2D
_   http://code.google.com/p/processing/issues/detail?id=182
_ copy(image with transparency) doesn't keep the transparency at start up
_   http://code.google.com/p/processing/issues/detail?id=601
_ accuracy problems make alpha channel go to FE with image.copy()
_   http://code.google.com/p/processing/issues/detail?id=219
_ improve blend() accuracy when using ADD
_   http://code.google.com/p/processing/issues/detail?id=133
_   includes code for a slow but more accurate mode
_ for a PGraphics2D, should its image cache object be the memoryimagesource?
_ loading lots of images is a problem, describe how to unload
_   is it possible? necessary to call delay(5) or something?
_ don't grab pixels of java2d images unless asked
_   this is the difference between a lot of loadPixels() and not
_   so important to have it in before beta if that's the change
_   http://code.google.com/p/processing/issues/detail?id=60
_ add ability to control jpeg compression level with save() and saveFrame()
_   or just write a better example for this one?
_   http://code.google.com/p/processing/issues/detail?id=58
_ should PImage smoothing not be turned on by default? handle this where?
_   http://code.google.com/p/processing/issues/detail?id=165
_ Semitransparent rect drawn over image not rendered correctly
_   http://code.google.com/p/processing/issues/detail?id=182


CORE / PShape

_ we can do hit testing (at least in 2D) now that we rely on java2d
_ for subclasses, make it easy to grab the structure of vertices
_   actually, just use PShape internally and this will be easier
_ for PShape, need to be able to set the origin (flash people)


CORE / PShapeSVG

_ need to handle <!ENTITY tags in XML for SVG documents
_   get entity tags working in xml library for SVG
_ cover the svg changes in a future release
_ load PShape from a string object
_   http://code.google.com/p/processing/issues/detail?id=277
_ breaking up classes / figure out how to handle fonts subclass
_ when using get(), reset the bounds for the objects
_   otherwise it's always relative to the original document
_ support for text (shouldn't be too bad, use createFont)
_   implement text spans for svg output
_ try enabling blending modes
_ add better support for attributes buried in styles (support ai9/10/11)
_ test what happens when transparency is used with gradient fill
_ look into transformation issues... guessing this is probably wrong
_   this may be what's throwing off the radial radius transform
_ implement A and a (elliptical arcs)
_   http://code.google.com/p/processing/issues/detail?id=130
_ check for any other pieces of missing path api
_   multiple sets of coordinates after a command not supported
_   i.e. M with several coords means moveto followed by many linetos
_   also curveto with multiple sets of points is ignored
_ document somehow.. svg viewer will be discontinued
_   http://www.adobe.com/svg/eol.html


CORE / Mac OS X

_ set the application name to sketch name (not processing.core.PApplet)
_   System.setProperty("com.apple.mrj.application.apple.menu.about.name", ...)
_   -Xdock:name=<application name>
_   -Xdock:icon=<path to icon file>
_ cursor() broken in applets on macosx?
_   or is it a java 1.4 versus java 1.3 problem?
_   http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1081645955



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more andres
_ implement setImpl() instead of set() inside PGraphicsOpenGL
_   http://code.google.com/p/processing/issues/detail?id=121
_ use glCopyPixels() or glReadPixels() instead of copy() method
_   http://code.google.com/p/processing/issues/detail?id=119
_ copy() does not update the screen with OpenGL
_   http://code.google.com/p/processing/issues/detail?id=118
_ set() requires updatePixels() with OpenGL
_   http://code.google.com/p/processing/issues/detail?id=89
_ first few frames of OpenGL sketches on Windows run slowly
_   http://code.google.com/p/processing/issues/detail?id=107
_ updatePixels wth OpenGL requires a lot of memory, need better texture update
_   http://code.google.com/p/processing/issues/detail?id=77
_ implement textMode(SHAPE) with OPENGL
_   http://code.google.com/p/processing/issues/detail?id=738

_ opengl needs to shut itself down properly when closing applet
_   otherwise can crash the whole browser


LIBRARIES / PGraphicsPDF

_ pdf not rendering unicode with beginRecord()
_   http://code.google.com/p/processing/issues/detail?id=90
_ beginRecord() doesn't use current settings of the sketch
_   sometimes reported as a bug, but probably not a good way to 
_   consistently carry these over
_ pdf sketches exiting before writing has finished
_   people have to call exit() (so that dispose() is called in particular)
_ when using noLoop() and the PDF renderer, sketch should exit gracefully
_   because isDisplayable() returns false, there's no coming back from noLoop



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LATER / Optimize

_ put a wrapper around InputStream returned by createInput
_   that actually has some notion of the length of its input
_   that way, methods could use the information when reading
_ can loadBytes() be improved by querying file size first?
_   background 
_     this would require a new version of createInput(), which would query
_     the URL (or file) for an actual file size. the size is not always
_     available, so it can't be relied upon, but would help in some cases.
_   loadBytes() is used for images.. ouch
_   might be worth doing a test to see if it actually would help at all 
_     before rewriting all of createInput()


LATER (post 2.0)

_ implement JSON class
_   http://www.xml.com/lpt/a/1658
_   http://www.json.org/java/
_ add shader support
_ createColor() instead of color()?
_ route all exceptions through PException and catch method
_   advanced users can override the method if they want
_   or you can set an option to have PExceptions be raised
_   decision: just copy & paste the serial/net code.. 
_     until we can find a more compelling example
_ actual shape api for things like rectangles and whatnot?
_ should we kill import xxxx syntax for libraries? 
_   just give up and use a gui for it
_   cons: copy & paste breaks
_   pro: there's no guaranteed 1:1 between packages and single libraries
_ method of threading but queue an event to be run when safe
_   e.g. queueing items like mouse/keybd, but generic fxns
_ for begin/endRecord, use a piggyback mechanism
_   that way won't have to pass a PApplet around
_   this has a big impact on the SVG library
_   in fact, this maybe should be a library that does it
_     so that the file size can be much smaller
_ add setOutput() method across other renderers?
_ opengl.jar with eclipse
_   auto-extract native libs from opengl.jar 
_   to remove java.library.path problems (!)
_ introduce calc()
_   semantics of this are just too tricky, especially when it's not clear
_   what's actually gained by the split--would have to do weird hacks
_   to get the accum buffer, etc. to work anyway
_ add some sort of unprojectX/Y/Z method (based on glu fxn)
_   http://processing.org/discourse/yabb_beta/YaBB.cgi?board=OpenGL;action=display;num=1176483247
_ add a timer(obj, "functionname", 45) method
_   this can be used to schedule something to happen at a specific time
_   or import the swing timer (for actionPerformed)
_   also add interval("functionname", 40)
_ color(0, 0, 0, 0) produces black
_   because color(0, 0, 0, 0) creates an int that is simply '0'
_   although fill(0, 0, 0, 0) does the right thing
_   also, rgb255 not getting set
_   http://dev.processing.org/bugs/show_bug.cgi?id=382
_ should fill(c) instead be fillColor(c)?
_ should color(123, 4, 99) instead be createColor()?
_ rounding errors on color conversion
_   colorMode(RGB, 1.0); colorMode(255); println(red(color(0.5,1,1)));
_   will return 127, instead of 128.
_ gray that's greater than the colorMode() can produce strange colors
_   http://dev.processing.org/bugs/show_bug.cgi?id=432
_   http://processing.org/discourse/yabb/YaBB.cgi?board=Syntax;action=display;num=1083650609
_   http://processing.org/discourse/yabb/YaBB.cgi?board=Syntax;action=display;num=1082481891
_ add stroke() to type
_   more for doing outlines-only and that sort of business
_ gradients
_   use gradients in a class for the svg lib for now
_   don't add api to main p5 stuff (though maybe setPaint/noPaint api?)
_   gradient-painted lines and fills
_     java2d will do both line and fill, illusfarter only does fills
_   gradients not supported in java2d
_     http://dev.processing.org/bugs/show_bug.cgi?id=371
_ bspline or nurbs (later, want to do the 3D/arch stuff correctly)
_ non-homogenous coloring for curve vertices
_ exactly how should pixel filling work with single pixel strokes?
_   http://dev.processing.org/bugs/show_bug.cgi?id=1025
_ consider bringing back text/image using cache/names
_ exactly how pixel-filling works for strokes
_   http://processing.org/bugs/bugzilla/1025.html