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| author | Alexis Menard <alexis.menard@nokia.com> | 2009-04-17 10:40:52 (GMT) |
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| committer | Alexis Menard <alexis.menard@nokia.com> | 2009-04-17 10:40:52 (GMT) |
| commit | bb2e4df9bee3148e819c98410aa36e22dad95d7a (patch) | |
| tree | a6e6e8c070a72378d4b2e5f39ad3cc9c368b61ab /demos/deform/pathdeform.html | |
| download | Qt-bb2e4df9bee3148e819c98410aa36e22dad95d7a.zip Qt-bb2e4df9bee3148e819c98410aa36e22dad95d7a.tar.gz Qt-bb2e4df9bee3148e819c98410aa36e22dad95d7a.tar.bz2 | |
Initial import of kinetic-animations branch from the old kinetic
repository to the new repository
Diffstat (limited to 'demos/deform/pathdeform.html')
| -rw-r--r-- | demos/deform/pathdeform.html | 24 |
1 files changed, 24 insertions, 0 deletions
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> |