Mailinglist Archive: opensuse (1784 mails)

[jerrykreps@xxxxxxxxxxx (Jerry Kreps)]

From: Jerry Kreps <jerrykreps@xxxxxxxxxxx>
Date: Fri, 15 Dec 2000 18:01:19 -0600
Message-Id: <00121518011901.00691@JLKreps>
Subject: Re: [SLE] Conversion of image files



On Friday 15 December 2000 05:43, Mark Hounschell wrote:
> Hal Schlicht wrote:
> > Hello all:
> >
> >         KDE 2.0.1 won't accept .jpg files as Wallpaper, but it
> > does accept .png files for this purpose.  Can anyone point me to
> > a utilty thtat will do this conversion, or possibly to a library
> > file that is needed by KDE 2?
>
> Mine does just fine.. Maybe you didn't install everything you need.

I ran into the exact same problem when I upgraded using SuSE KDE2.0 about a month ago.
The reason is that your Qt installation doesn't have the jpeg option set..  While mine would
display png files, it wouldn't display jpeg or gif files.  Check which version of Qt-Free you
are running and then go out to the Qt-Free site (use goggle to find it) and download
the source for your verison.    When you run "./configure" use the following:
./configure -gif -system-libpng -system-libmng -system-jpeg

Here is the rest of the Qt install instructions.  Substitue your version numbers
for the ones listed here, and use the configure arguments I show above.:

                          INSTALLING Qt FOR X11

<p>You may need to be root, depending on the permissions of the directories
where you choose to install Qt.

<p>1.  Unpack the archive if you have not done so already:

        cd /usr/local
        gunzip qt-x11-2.2.2.tar.gz	# uncompress the archive
        tar xf qt-x11-2.2.2.tar	# unpack it

    This creates the directory /usr/local/qt-2.2.2 containing the
    files from the main archive.

    Rename qt-2.2.2 to qt (or make a symlink):

        mv qt-2.2.2 qt

    The rest of this file assumes that Qt is installed in /usr/local/qt.

<p>2.  Set some environment variables in the file .profile (or .login,
    depending on your shell) in your home directory. (Create the
    file if it is not there already.)

        QTDIR		   - wherever you installed Qt
        PATH		   - to locate the moc program and other Qt tools
        MANPATH 	   - to access the Qt man pages
        LD_LIBRARY_PATH	   - for the shared Qt library

    This is done like this:

    In .profile (if your shell is bash, ksh, zsh or sh), add the
    following lines:

        QTDIR=/usr/local/qt
        PATH=$QTDIR/bin:$PATH
        MANPATH=$QTDIR/doc/man:$MANPATH
        LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH

        export QTDIR PATH MANPATH LD_LIBRARY_PATH

    In .login (in case your shell is csh or tcsh), add the following lines:

        setenv QTDIR /usr/local/qt
        setenv PATH $QTDIR/bin:$PATH
        setenv MANPATH $QTDIR/doc/man:$MANPATH
        setenv LD_LIBRARY_PATH $QTDIR/lib:$LD_LIBRARY_PATH

    After you have done this, you will need to login again, or
    re-source the profile before continuing, so that at least $QTDIR
    is set.  The installation will give an error message and not
    proceed otherwise.

<p>3.  Install your license file as $HOME/.qt-license.
    For the free edition, you do not need a license file.  For Professional
    and Enterprise editions, install your license file as described in your
    distribution.

<p>4.  Building.

    This step compiles the Qt library, and builds the example programs,
    the tutorial, and the tools (eg. the Designer).

    Type:

###	./configure
./configure -gif -system-libpng -system-libmng -system-jpeg

    This will configure the Qt library for your machine. Note that
    GIF support is turned off by default. Run ./configure -help
    to get a list of configuration options. Read PLATFORMS for a
    list of supported platforms.

    To create the library and compile all examples and the tutorial:

        make

    If your platform or compiler is not supported, read PORTING.  If it is
    supported but you have problems, see http://www.trolltech.com/platforms/

<p>5.  In very few cases you may need to run /sbin/ldconfig or something
    similar at this point if you are using shared libraries.

    If you have problems running the example programs, e.g. messages like

         can't load library 'libqt.so.2'

    you probably need to put a reference to the qt library in a
    configuration file and run /sbin/ldconfig as root on your system.
    And don't forget to set LD_LIBRARY_PATH as explained in 2) above.

<p>6.  The online HTML documentation is installed in /usr/local/qt/doc/html/
    The main page is /usr/local/qt/doc/html/index.html
    The man pages are installed in /usr/local/qt/doc/man/

<p><p>That's all.  Qt is now installed.

<p>
-- 
Scientific theories, according to Sir Karl Popper, can be "falsified," or proven wrong, by experiment. 
Unscientific theories -Marxist dialectical history and Freudian psychology were Popper's favorites- 
are formed in such a way that they cannot be falsified by data.