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| author | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
|---|---|---|
| committer | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
| commit | 8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76 (patch) | |
| tree | a17e1a767a89542ab59907462206d7dcf2e504b2 /demos/deform/pathdeform.html | |
| download | Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.zip Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.gz Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.bz2 | |
Long live Qt for S60!
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| -rw-r--r-- | demos/deform/pathdeform.html | 24 |
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diff --git a/demos/deform/pathdeform.html b/demos/deform/pathdeform.html new file mode 100644 index 0000000..b3f63a8 --- /dev/null +++ b/demos/deform/pathdeform.html @@ -0,0 +1,24 @@ +<html> +<center> +<h2>Vector deformation</h2> +</center> + +<p>This demo shows how to use advanced vector techniques to draw text +using a <code>QPainterPath</code>.</p> + +<p>We define a vector deformation field in the shape of a lens and apply +this to all points in a path. This means that what is rendered on +screen is not pixel manipulation, but modified vector representations of +the glyphs themselves. This is visible from the high quality of the +antialiased edges for the deformed glyphs.</p> + +<p>To get a fairly complex path we allow the user to type in text and +convert the text to paths. This is done using the +<code>QPainterPath::addText()</code> function.</p> + +<p>The lens is drawn using a single call to <code>drawEllipse()</code>, using +a <code>QRadialGradient</code> to fill it with a specialized color table, +giving the effect of the Sun's reflection and a drop shadow. The lens +is cached as a pixmap for better performance.</p> + +</html> |