Java Power Tools 2.6.0
Java Power Tools 2.6.0
Release Note for October 25, 2007 (2.6.0a):
Java Power Tools 2.6.0 was originally released on September 13, 2007. Subsequently,
we decided to post the
Shape Editor
applet which illustrates the JPT
path tools.
This process led us to discover and fix a few tiny bugs. More importantly, we realized
that the design of the PathList class could be made more flexible by
permitting an object of that class to create the “best possible shape” even
if its first node is not a MOVE operation. This design decision makes
PathList much more flexible than the Java class GeneralPath.
As a result of these design decisions and related matters, changes were made to the following 8 classes:
PathNodePathListPathListIteratorPathNodeViewPathListViewSimpleArrayPanelAlgebraicAreaMultiColorView
In addition, a 9th class, PathListFunction was introduced to encapsulate
the algorithmic calculation of points on a path.
Internally, these 9 classes have a version number of 2.6.0a. We decided to keep the version number of this site at 2.6.0 since we viewed these changes as incremental enhancements.
Release Note for November 3, 2007 (2.6.0b):
The class Path was updated with one additional method
showShapeStructure to parallel a change in the class
PathList made in 2.6.0a.
The class ProbStatTools was updated with the following features:
Release Note for November 8, 2007 (2.6.0c):
A serious bug was fixed in TileBox.
A useful method makeSnapshot was added to Paintable,
AbstractPaintable, and BufferedPanel. Other
tweaks were made to BufferedPanel, PaintableTools,
and Refresh.
Release Note for November 15, 2007 (2.6.0d):
The tweak to class Refresh was in fact a mistake and the class
has been reverted to the file in JPT 2.5.0.
The class BufferedPanel was adjusted in view of the reversion of
class Refresh but still contains the useful earlier enhancements.
The classes PathNode and PathList were enhanced to
make it much easier to append path node data to path lists from a variety
of sources. In preparation for a future adaption of JPT to Java 6, we made
the input parameters of many methods to be double rather then
float. To retain current backward compatibility, the output
parameters of methods and the internal data remains as float.
Finally, methods called JavaCode were added to both classes to
provide sample code that would illustrate how to clone the current data in
objects of these classes. These are useful in interactive pedagogy.
The internal panel in StringViewer was changed to
JTextArea to permit the text to be copied to the clipboard.
Release Note for November 25, 2007 (2.6.0e):
A BufferedPanel is constructed with an inner panel
of class Painter that is responsible for painting and
for returning the preferred size of the component. In this release,
the body of the methods paint and
paintComponent in class Painter have been
synchronized on the enclosing BufferedPanel
object. This means that the user of this class has the option of
also using synchronized on this BufferedPanel
object when making changes to either the internal
BufferedImage or to the PaintableSequence of
objects painted above the buffer. If this synchronization is done,
then Java repainting will not take place while the data structure is
undergoing change. In practice, this synchronization is needed only
when lots of dynamic activity is happening.
As of 2.6.0e, class StringViewer
can also instantiate
a StringViewer object that may be
embedded in a GUI and manipulated by the caller.
A StringViewer object embeds a
JTextArea which is placed in a
JPTScrollPane which is placed in
this object as a DisplayPanel.
Release Note for November 29, 2007 (2.6.0f):
This release was prompted by a bug in the Mac OS X look-and-feel which caused
problems with the JPT console. Since other changes were in
place for a major 2.7.0 release, these were added as well.
The bug in the Mac OS X look-and-feel is triggered by changes in the text
color between the three console streams: in, out, and err. The bug does not
appear to be triggered if the text color remains at black. Hence, the
showConsole method in class JPFApplication no longer
selects the color text scheme by default.
As of 2.6.0f, class StringViewer implements
TypedView by delegating method calls
to an internal TextAreaView. The goal
is to permit this class to integrate with other JPT
tools.
In effect, StringViewer now enables
the creation of a text area in a scroll pane whose
viewport size is controlled. This enables the use
of a TypedView for multi-line text in
a context where the screen real estate in the GUI
will be predictable.
Finally, changes were made to JPTFrame and
DirectApplet so that an open applet counts
in the count of open frames. This prevents an applet
being viewed in an applet viewer from closing when the
last open frame is closed.
Release Note for December 2, 2007 (2.6.0g):
Upon further reflection, we decided that it would be
helpful for StringViewer to implement
GeneralView in addition to
TypedView so those methods were added
in 2.6.0g.
In DirectApplet, a call to setSize
was added to the built-in init method. This is
useful primarily in an applet viewer since it causes the
viewer to reset its size.
Note that Eclipse 3.3 is so similar to Eclipse 3.2 as far as the settings shown at the above link that we have not created a new version of the screen snapshots for Eclipse 3.3.
Methods.java
for the Java Power Framework
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