From 38be0d13830efd2d98281c645c3a60afe05ffece Mon Sep 17 00:00:00 2001 From: Qt by Nokia Date: Wed, 27 Apr 2011 12:05:43 +0200 Subject: Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12 --- demos/deform/pathdeform.html | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 demos/deform/pathdeform.html (limited to 'demos/deform/pathdeform.html') diff --git a/demos/deform/pathdeform.html b/demos/deform/pathdeform.html new file mode 100644 index 0000000000..b3f63a8e0a --- /dev/null +++ b/demos/deform/pathdeform.html @@ -0,0 +1,24 @@ + +
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Vector deformation

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This demo shows how to use advanced vector techniques to draw text +using a QPainterPath.

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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.

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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 +QPainterPath::addText() function.

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The lens is drawn using a single call to drawEllipse(), using +a QRadialGradient 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.

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