Tuesday, April 8, 2014


C++ PyQt5 Extension

The old sipconfig mechanism has been on its way out since Riverbank Software added to the PyQt4 distribution.  Because pyqtconfig depends on sipconfig, pyqtconfig has also been on the way out, and is gone from PyQt5.  In lieu of the pyqtconfig method for building the Python .so/.dll/.dylib documented here, there is... roll your own.

Rolling your own is tough if you're handed a tray of eighty different tobaccos and you don't know whether you're supposed to be making a cigar, bidi, or cigarette.  So, here is an example of the end product blended to my simple but very particular tastes.  At the risk of suffocating in this metaphor: a more complex blend may include Python wrapping paper...

The most import bit:

#!/usr/bin/env bash

set -x

cd /home/ehvatum/zplrepo/ris_widget && \
rm -fv sipris_*.cpp sipAPIris_widget.h ris_widget.sbf && \
sip -c . -b ris_widget.sbf -I /usr/share/sip/PyQt5 -x VendorID -t WS_X11 -t Qt_5_2_0 -g ris_widget.sip && \
g++ -O2 -fPIC -std=c++0x -march=native -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB \
-I/usr/lib64/qt5/mkspecs/linux-g++ -I. -I/usr/include/qt5 -I/usr/include/qt5/QtWidgets -I/usr/include/qt5/QtGui \
-I/usr/include/qt5/QtCore -I/usr/include/qt5/QtOpenGL -I/usr/include/python3.3 -I/usr/local/glm -Wl,-O1 -std=c++0x \
-shared -lQt5Widgets -lQt5Gui -lQt5Core -lQt5OpenGL -lGL -lpthread *.cpp cpp/*.o -o
The rest of the example.

Note that the example code is a small subset RisWidget, of one of my open source projects.

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