Difference between revisions of "Qtopia core howto"

Revision as of 11:39, 15 April 2008

we need qtopia to find the compiler (symlinks & path)

 $ cd path-to/gumstix-oe/tmp/cross/bin ; for f in arm-angstrom-linux-gnueabi-*; do n=$(echo $f|cut -b 28-); ln -s $f arm-linux-$n; done
 $ PATH=$PATH:path-to/gumstix-oe/tmp/cross/bin/ ; export PATH

download and unpack

 $ wget ftp://ftp.trolltech.com/qt/source/qtopia-core-opensource-src-4.4.0-beta1.tar.gz
 $ tar xzvf qtopia-core-opensource-src-4.4.0-beta1.tar.gz ; cd qtopia-core-opensource-src-4.4.0-beta1/

as of release candidate 1, the name has changed from qtopia to qt-embedded. The commands to get and unpack the qt-embedded release candidate for the gumstix is:

  $ wget ftp://ftp.trolltech.com/qt/source/qt-embedded-linux-opensource-src-4.4.0-rc1.tar.gz
  $ tar xzvf qt-embedded-linux-opensource-src-4.4.0-rc1.tar.gz ; cd qt-embedded-linux-opensource-src-4.4.0-rc1/

configure, make and make install

 $ ./configure -embedded arm -little-endian -prefix /qtopia ; make ; sudo make install

if you want to use the touchscreen for mouse input, it is best to include the tslib mouse driver configuration for qt-embedded. The correct configuration is:

 $ ./configure -embedded arm -little-endian -prefix /qtopia -qt-moust-tslib; make ; sudo make install

tar and move it to gumstix (~83 MB including examples & demos)

 $ tar cvf ~/qtopia-core.tar --exclude=doc /qtopia

 gumstix: $ tar xvf qtopia-core.tar -C /media/cf ; ln -s /media/cf/qtopia/ /qtopia

qtopia needs libstdc++, move it to your gumstix's /lib or somewhere it can be found

 $ cd path-to/gumstix-oe/tmp/staging/arm-angstrom-linux-gnueabi/lib/
 $ tar cfv ~/libstdc++.tar libstdc++.so*

 libstdc++.so
 libstdc++.so.6
 libstdc++.so.6.0.8

 gumstix: $ tar xvf libstdc++.tar -C /lib

set variables for qtopia & calibrate touchscreen

 $ export QWS_MOUSE_PROTO='LinuxTP:/dev/input/touchscreen0'
 $ /qtopia/examples/qtopiacore/mousecalibration/mousecalibration -qws &

if you are using the tslib then you should calibrate the touch screen using ts_calibrate instead of the mousecalibration example. The environment variable QWS_MOUSE_PROTO should be set to tslib:/dev/input/touchscreen0

 $ export QWS_MOUSE_PROTO='tslib:/dev/input/touchscreen0'