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-rw-r--r--examples/corelib/threads/doc/src/mandelbrot.qdoc22
1 files changed, 14 insertions, 8 deletions
diff --git a/examples/corelib/threads/doc/src/mandelbrot.qdoc b/examples/corelib/threads/doc/src/mandelbrot.qdoc
index aaa6356a2c..6081912e69 100644
--- a/examples/corelib/threads/doc/src/mandelbrot.qdoc
+++ b/examples/corelib/threads/doc/src/mandelbrot.qdoc
@@ -3,7 +3,8 @@
/*!
\example threads/mandelbrot
- \title Mandelbrot Example
+ \examplecategory {Data Processing & I/O}
+ \title Mandelbrot
\ingroup qtconcurrent-mtexamples
\brief The Mandelbrot example demonstrates multi-thread programming
@@ -13,17 +14,17 @@
\image mandelbrot-example.png Screenshot of the Mandelbrot example
- The heavy computation here is the Mandelbrot set, probably the
- world's most famous fractal. These days, while sophisticated
- programs such as \l{http://matek.hu/xaos/doku.php}{XaoS} that provide real-time zooming in the
- Mandelbrot set, the standard Mandelbrot algorithm is just slow
- enough for our purposes.
+ The heavy computation here is the Mandelbrot set, probably the world's most
+ famous fractal. These days, while sophisticated programs, such as
+ \l{https://xaos-project.github.io/}{XaoS}, provide real-time zooming in
+ the Mandelbrot set, the standard Mandelbrot algorithm is just slow enough
+ for our purposes.
In real life, the approach described here is applicable to a
large set of problems, including synchronous network I/O and
database access, where the user interface must remain responsive
while some heavy operation is taking place. The \l
- {Blocking Fortune Client Example} shows the same principle at
+ {Blocking Fortune Client} example shows the same principle at
work in a TCP client.
The Mandelbrot application supports zooming and scrolling using
@@ -151,7 +152,7 @@
it needs to access \c{RenderThread}'s member variables (e.g., in
\c render()).
- The \c forever keyword is, like \c foreach, a Qt pseudo-keyword.
+ The \c forever keyword is a Qt pseudo-keyword.
\snippet threads/mandelbrot/renderthread.cpp 4
\snippet threads/mandelbrot/renderthread.cpp 5
@@ -303,6 +304,11 @@
\snippet threads/mandelbrot/mandelbrotwidget.cpp 13
+ Pinch to zoom has been implemented with QGesture as outlined in
+ \l{Gestures in Widgets and Graphics View}.
+
+ \snippet threads/mandelbrot/mandelbrotwidget.cpp gesture1
+
When the user presses the left mouse button, we store the mouse
pointer position in \c lastDragPos.