104 lines
3.4 KiB
HTML
104 lines
3.4 KiB
HTML
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<HTML>
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<BODY bgcolor=ffffff>
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<A name=top>
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<TABLE width=100% cellspacing=0 cellpadding=0>
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<TR>
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<TD>
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<FONT size=-1><B>CalHTMLPane v2.0 Guide</B></FONT>
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</TD>
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<TD align=right>
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<FONT size=-1><B>Programming Answers</B></FONT>
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</TD>
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</TR>
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</TABLE>
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<HR width=100% size=1 color=black>
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<H2 align=center>Programming Answers</H2>
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<BLOCKQUOTE>
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<P>
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<HR>
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<P>
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<A name="1"><B>1. I don't want hyperlinks to be marked as visited and I can't see
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a method in CalHTMLPreferences to turn this feature off.</FONT></B>
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<P>
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The easiest way to turn this off is simply to set the default color of
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visited links to that of unvisited links. You can do this through a
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method in CalHTMLPreferences.
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So your code will look something like this:
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<pre>
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CalHTMLPreferences pref = new CalHTMLPreferences();
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pref.setDefaultColor(CalCons.A_VLINK, pref.getDefaultColor(CalCons.A_LINK));
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CalHTMLPane pane = new CalHTMLPane(pref, null, null);
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</pre>
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<BR>
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<A name="2"><B>2. CalPane uses THREEDEE style form components as default. I'd like
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to have LOOKANDFEEL components as default. How do I do this?</B></A>
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<P>
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You can make all components render in the current Look And Feel by
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setting a property in CalHTMLPreferences:
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<pre>
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CalHTMLPreferences pref = new CalHTMLPreferences();
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pref.setFormRenderingStyle(CalCons.USE_LOOK_AND_FEEL);
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CalHTMLPane pane = new CalHTMLPane(pref, null, null);
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</pre>
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<BR>
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<A name="3"><B>3. Is it possible to do something like hyperlink-hover which you see in
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some help systems?</B>
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<P>
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Yes, there's a method in CalHTMLPreferences that enables you to do this:
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<pre>
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CalHTMLPreferences pref = new CalHTMLPreferences();
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pref.setShowHyperlinkOnMouseFocus(true);
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CalHTMLPane pane = new CalHTMLPane(pref, null, null);
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</pre>
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<BR>
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<A name="4"><B>4. I'm including some form components in a table. Each component is
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in its own table cell and the cell has got a border. I want the component to fill the cell,
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but there's always a gap above it. How can I get rid of this? </B></A>
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<P>
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Change the alignment of the form component to something other than its default, which is a few
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pixels below the text baseline. For example:
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<P>
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<TD><INPUT type=text align=top></TD>
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<P>
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<BR>
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<A name="5"><B>5. I've got a document which has many form controls, each of which has its
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own id. I get the the CalPane to load this document and then I call the getIDComponents()
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method to access the components. However the Hashtable returned from this call is empty.
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Here's my code:</B>
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<pre>
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pane.showHTMLDocument(url);
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pane.getIDComponents(null);
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</pre>
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The CalPane will load the document <EM>asynchronously</EM>, so the showHTMLDocument() method will return
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immediately, and you are consequently making the call to get the components before they
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have been created. You need to ensure that the document has loaded before you try and get the components. You can
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either do this by using CalHTMLObserver callbacks to monitor document loading, or you can force
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the document to load synchronously with the setLoadSynchronously() method like this:
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<pre>
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pane.setLoadSynchronously(true);
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pane.showHTMLDocument(url);
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pane.setLoadSynchronously(false);
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pane.getIDComponents(null);
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</pre>
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<TABLE align=center width=50%>
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<TR>
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<TD align=center>
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<A href="../CalGuide.html">Guide Index</A> |
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<A href="../javadoc/overview-tree.html"> JavaDoc</A> |
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<A href="guide-Misc-float.html"> Previous</A> |
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<A href="guide-Tables-background.html"> Next</A>
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</TD>
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</TR>
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</TABLE>
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</BODY>
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</HTML>
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