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With scripting enabled, the main window now has an additional scripting widget that allows to interact with a Lua VM. The current proof-of-concept implementation creates a Lua VM for every instantiated CAMPVis pipeline while the console just interacts with the first pipeline's one.
However, the Lua VM concept has to be reiterated later anyway. It may make more sense to have just a single central Lua VM for the entire application, which is shared by each pipeline.

Closes #387: LogViewerWidget now has a checkbox to select the minimum log level to display. Filtering is performed in widget. Checkboxes to enable/disable each log level, however, seemed to be overkill. If one really wants such specific filtering, he/she can use the filter text box.

Removed oblivious tgt::QtContextManager and merged functionality into tgt::GLCanvas and tgt::GlContextManager. Meanwhile, improved OpenGL context initialization and pipeline creation in CampvisApplication.

* Moving to Apache 2.0 license
* Updated AUTHORS.txt

A new class, LogHighlighter, has been added to the application.
Currently it's only responsible for highlighting those parts of log
messages that match the current filter. However, it can be easily
extended to also highlight timestamps, log levels, etc. All in all, this
should make the information the log viewer displays much easier to scan
through.

git-svn-id: https://camplinux.in.tum.de/svn/campvis/branches/gui-redux@518 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

Typing text into the log viewer's QLineEdit now causes all log
messages that don't contain that text to be filtered out. To
support this, message caching had to be moved to the log viewer.

git-svn-id: https://camplinux.in.tum.de/svn/campvis/branches/gui-redux@517 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

LogViewerWidget now uses BufferingLog instead of QTextEditLog for
logging. This helps us test BufferingLog, and start integrating it into
the application.

git-svn-id: https://camplinux.in.tum.de/svn/campvis/branches/gui-redux@509 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

There is now a new widget (LogViewerWidget) dedicated to displaying log
messages. It builds upon the previous ad-hoc design, adding controls for
clearing and filtering log messages. Clearing has been implemented
already, filtering on the other hand doesn't work yet.

git-svn-id: https://camplinux.in.tum.de/svn/campvis/branches/gui-redux@507 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

* added InvalidationLevel::INVALID_PROPERTIES level
* added HasPropertyCollection::updateProperties() method being triggerd upon INVALID_PROPERTIES invalidation

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@423 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@338 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@335 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@326 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 * added update_legal_header.py script for updating the legal header in all code files of the project
 * ran the file => all TUMVis source files now contain the legal header

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@231 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 + added PropertyWidgetFactory
 + added AbstractPropertyWidget and StringPropertyWidget
 * replaced own observer implementation of AbstractPipeline and AbstractProperty with sigslot
 * changed PropertyCollection (aggregation) to HasPropertyCollection (inheritance)

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@207 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

* AbstractPipeline and AbstractProcessor inherit both from HasPropertyCollection

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@206 bb408c1c-ae56-11e1-83d9-df6b3e0c105e