Jskad/extensions/calpa/CHANGES.txt

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calpa.html Java package
Changes since Version 2.0 beta
Version 2.021
- Verison 2.02 was very short-lived. The system font bug in Java 2
which had been pointed out in the KNOWN PROBLEMS of readme.txt was
causing a number of unforseen problems for CalPane users when the
<FONT face=xxx> tag was used. Regrettably therefore the support of
system fonts has once again been disabled within CalPane. The code
will be reactivated when JavaSoft have fixed the Java 2 bug.
Version 2.02
- New methods in CalHTMLPane to force synchronous loading of
documents:
setLoadSynchronously(boolean b)
isLoadSynchronouslyEnabled()
If loadSynchronously is enabled then showHTMLDocument() methods
will not return until a document has loaded. In addition documents
loading from activated hyperlinks will also load synchronously.
Loading synchronously effectively blocks the current AWT thread
which will reduce the responsiveness of CalPane, but can be useful
for programmers who want to be sure that a document has loaded
before proceeding with another operation. Generally it is better
to use the callback methods in CalHTMLObserver to determine when a
document has finished loading.
- New method in CalHTMLPane to allow access to form components:
getIDComponents(String targetFrame)
This method returns a Hashtable containing all components in the
target frame which have the HTML 'id' attribute, as for example:
<INPUT type=text name=username id=username>
This method allows programmers to get handles to HTML form
components after they have been created, either to monitor/
manipulate their state, or programmatically fire a form submission.
If the target frame is null then all id components within the
CalPane are returned.
- Enhancement of form submission to give feedback on custom
components. When a custom component is included in a form via the
OBJECT tag, the CalPane will call that component's toString() method
and include this string in the form submission. This enables users
to pass information regarding the state of the component by
overriding the toString() method. For example, if you had added a
JColorChooser like this:
<OBJECT type=jcomponent jname=mycolorchooser name=chooser>
...you could override toString() to pass the RGB values of the
selected color. The form submission would include the text:
chooser=[whatever toString() returns]
- New methods added to CalHTMLPreferences to allow programmers to
handle hyperlink events themselves:
setAutomaticallyFollowHyperlinks(boolean)
isAutomaticallyFollowHyperlinksEnabled()
- New method added to CalHTMLPane for programmers using HTML
Strings rather than URLs:
scrollToReference(String ref, String targetFrame)
- The CalGuide now includes a page containing answers to some common
programming questions.
- New methods added to CalHTMLPreferences:
setDefaultFont(int displaySize, Font font)
getDefaultFont(int displaySize)
setDefaultButtonFont(int displaySize, Font font)
getDefaultButtonFont(int displaySize)
setDefaultFormTextFont(int displaySize, Font font)
getDefaultFormTextFont(int displaySize)
These methods have been incorporated to allow the setting of
system fonts under Java 2. They replace the following 1.1 methods
which are now deprecated:
setDefaultFont(int, int, int)
setFormFont(int, int, int, int)
- New methods added to CalHTMLPreferences:
setShowHyperlinkOnMouseFocus(boolean)
isShowHyperlinkOnMouseFocusEnabled()
This hyperlink policy is commonly used in help systems where it is
obvious that all text is a hyperlink entry, and users only need to
know which hyperlink currently has focus.
- Bug Fixes: A few changes made to fix problems with borderless
frames. In particular the 'frameborder' attribute was incorrectly
implemented in FRAMESET tags: frameborder=no and frameborder=yes
were working the wrong way round. In addition viewport borders
were not being drawn around borderless framesets.
Version 2.01b
- Bug Fix: An exception was being thrown when loading a document
containing over 8000 hyperlinks.
- Bug Fix: The DOC_LOADED call from the top level frame was
incorrectly being sent twice to the statusUpdate() method
of CalHTMLObserver.
- Bug Fix: The 'reload' argument sent to the CalPane's
showHTMLDocument() method was being ignored.