QTeXEngine - TeX support for Qt
QTeXEngine enables Qt based applications to easily export graphics created using the QPainter class to TeX. It is built on top of QPaintEngine and uses the TikZ/Pgf graphic systems for TeX.

Features:

QTeXEngine was written as an add-on to QtiPlot, in order to enable the export of 2D plots to TeX. All drawing capabilities of the QPainter class used in QtiPlot are supported by QTeXEngine. Using QTeXEngine is straightforward, as you may see from the code example bellow: 
 void MyClass::exportTeX(const QString& fileName)
{
	QTeXPaintDevice tex(fileName, QSize(500, 400));
	QPainter paint.begin(&tex);
	// ... perform your painting operations here ...
	paint.end();
}
QTeXEngine can generate TeX code using either Pgf or TikZ syntax. TikZ syntax is the default mode since the ouput files are more compact and easier to read.

example screenshot

Platforms:

QTeXEngine can be used on any platform supported by Qt.

License:

Following the Qt distribution model, QTeXEngine is available under two licenses: an open-source licence (GPL v. 3.0) and a commercial one. Please take a look at the Licensing section for more details.

Author:

Ion Vasilief