vprerex (visual prerex) is a GUI front-end and viewer for the prerex
interactive editor of prerequisite-chart descriptions in the prerex
format. The viewer may be used just as a minimalist viewer of arbitrary
PDF files but supports editing of charts generated using prerex.sty by
allowing coordinates of course boxes, arrows, and background points
to be conveyed back to the prerex editor command-line using the X11
clipboard.

To install:

  + You must have first installed the Qt-4 and poppler libraries,
    including the poppler-qt4 library. These may be available packaged
    for your platform or the sources can be obtained from:

http://qt.nokia.com/downloads/downloads#qt-lib
http://poppler.freedesktop.org/

  + Edit vprerex.pro so INCLUDEPATH and LIBS point to the 
    relevant directories.

  + qmake vprerex.pro (using the Qt-4 qmake)

  + make

  + install the vprerex binary in a suitable directory such as
    $HOME/bin or /usr/local/bin.

If vprerex is applied to a LaTeX file, it calls xterm and the prerex
editor.

On Windows, the Qt-4 and poppler libraries are available for the Cygwin
platform; then vprerex will build and run on the Cygwin X-server.

It is also possible to build and use vprerex on the MinGW platform
in Windows.  Install the Qt-4 libraries for MinGW-4.4 from

http://qt.nokia.com/downloads/windows-cpp

and the poppler libraries from 

http://windows.kde.org/download.php

The headers and libraries for the latter install under

c:\ProgramData\KDE.

so use

INCLUDEPATH  += /c/ProgramData/KDE/include/poppler/qt4
LIBS         += -L/c/ProgramData/KDE/lib -lpoppler-qt4

in vprerex.pro.

The resulting vprerex.exe will run but of course cannot open an xterm
or start prerex; however, prerex can be started separately in a MinGW
shell. To paste from the clipboard, enable QuickEdit mode in the shell:

- Right-click in the title-bar, and then click Properties.

- On the Options tab, click to select the QuickEdit Mode check box.

- Click OK.

Then right-clicking will paste the clipboard text into the prerex
command line.

Or install the following console application and configure it to paste
on right-click:

sourceforge.net/projects/console

