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<body><div>I'm not sure whether this message originally got through. I got a response indicating it was being held until moderator review because it was too large (because I had attached the .ttf file I was working with, and that was > 512 Kb). The message suggested that if I didn't receive notification of the moderator's decision, that it would get posted. And I didn't. At least not so far.</div><div><br /></div><div>Anyway, I found a solution/work-around for the problem.</div><div><br /></div><div>In the <font face="Consolas" size="3" style="font-size: 16px;">Highlighter</font> class (that's derived from <font face="Consolas">QSyntaxHighlighter</font>), I create a <font face="Consolas" size="3" style="font-size: 16px;">QTextCharFormat</font> object. If I call <font face="Consolas" size="3" style="font-size: 16px;">.setFontHintingPreference(PreferNoHinting)</font> again on that object, then the text displayed by the syntax highlighter looks better -- like the other text. (Line #152 in the attached file)</div><div><br /></div><div>/John</div>
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<div>------ Original Message ------</div>
<div>From "John Sturtz" <<a href="mailto:john@sturtz.org">john@sturtz.org</a>></div>
<div>To <a href="mailto:pyqt@riverbankcomputing.com">pyqt@riverbankcomputing.com</a></div>
<div>Date 11/2/2025 9:21:50 PM</div>
<div>Subject QSyntaxHighlighter text quality</div></div><div x-em-quote=""><br /></div>
<div id="xcf619022220d460"><blockquote cite="em7a866cd7-6997-43da-b3c1-bcceefc7fbd1@29d393a1.com" type="cite" class="cite2">
Hi again.<div><br /></div><div>With some trepidation, I have a question about fonts again. Not so much about fonts in general, but about display quality of the font I am using.</div><div><br /></div><div>I have a <font face="Consolas">QTableView</font> with a custom delegate. The delegate editor is implemented as a <font face="Consolas" size="3" style="font-size: 16px;">QPlainTextEdit</font> widget which has a <font face="Consolas" size="3" style="font-size: 16px;">QSyntaxHighlighter</font> associated with it.</div><div><br /></div><div>I am loading a .ttf file at runtime and using it as the display font. Initially the quality is pretty poor everywhere [attached screenshot <b>initial.png</b>].</div><div><br /></div><div>I found online the suggestion to create a font object, call <font face="Consolas" size="3" style="font-size: 16px;">.setHintingPreference(PreferNoHinting)</font> on it, then apply that to the <font face="Consolas" size="3" style="font-size: 16px;">QApplication</font> object [lines #175-177]. That seems to improve the display significantly.</div><div><br /></div><div>Except for the text displayed by the syntax highlighter. That text is still pixelated [attached screenshot <b>highlighter.png</b>]. It's as though the <font face="Consolas" size="3" style="font-size: 16px;">.setHintingPreference()</font> call doesn't affect the syntax highlighter.</div><div><br /></div><div>Wondering if there's any way around this?</div><div><br /></div><div>Thanks again!</div><div><br /></div><div>/John</div><div><br /></div><div><i>[Sample code, screenshots and font file are attached]</i></div></blockquote></div>
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