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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">A good question!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">In the RichTextArea, it generally depends on the model. The default implementation, both in RichTextArea and CodeArea, the plaintext format handler uses "line.separator" system
property (PlainTextFormatHandler:72). That is, both will emit \r\n line separators in Windows, \n elsewhere else.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">The model may decide to change that behavior and register a different data format handler, as required by the application requirements.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">-andy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">openjfx-dev <openjfx-dev-retn@openjdk.org> on behalf of PavelTurk <pavelturk2000@gmail.com><br>
<b>Date: </b>Saturday, May 17, 2025 at 05:19<br>
<b>To: </b>openjfx-dev@openjdk.org <openjfx-dev@openjdk.org><br>
<b>Subject: </b>Re: CodeArea: how to convert offset to TextPos?<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:12.0pt">Andy, while implementing the conversion from TextPos to offset, I encountered the following issue.
<br>
<br>
Paragraph lines do not include line separators (\n or \r\n) at the end. However, in order to correctly
<br>
calculate the offset, I need to account for the size of the line separator, which can be either 1 or 2
<br>
characters long. <br>
<br>
In RichTextFX, as far as I know, only \n is used (i.e., \r\n is replaced with \n). But what about the JavaFX CodeArea?
<br>
How can I determine the size of the line separator there? Or is it always 1 byte as well?<br>
<br>
Best regards, Pavel<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">On 5/7/25 20:04, Andy Goryachev wrote:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">There is no dedicated method to do that. The application can iterate over paragraphs to compute the text position, just keep in mind that the model can be quite large and
it a) will take a lot of iterations and b) the result may exceed 2^31 (i.e. need to be 'long').</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">The same is true for the reverse operation, TextPos -> offset.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">-andy</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""> </span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">openjfx-dev <a href="mailto:openjfx-dev-retn@openjdk.org">
<openjfx-dev-retn@openjdk.org></a> on behalf of PavelTurk <a href="mailto:pavelturk2000@gmail.com">
<pavelturk2000@gmail.com></a><br>
<b>Date: </b>Wednesday, May 7, 2025 at 09:29<br>
<b>To: </b><a href="mailto:openjfx-dev@openjdk.org">openjfx-dev@openjdk.org</a> <a href="mailto:openjfx-dev@openjdk.org">
<openjfx-dev@openjdk.org></a><br>
<b>Subject: </b>CodeArea: how to convert offset to TextPos?</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Could anyone say how to convert offset to TextPos in CodeArea?<br>
<br>
For example, in RTFX CodeArea we have:<br>
<br>
var pos = codeArea.offsetToPosition(offset, Bias.Backward);<br>
var paragraph = pos.getMajor();<br>
<br>
Best regards, Pavel</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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