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| author | Lorry Tar Creator <lorry-tar-importer@baserock.org> | 2009-08-18 20:56:02 +0000 |
|---|---|---|
| committer | Lorry <lorry@roadtrain.codethink.co.uk> | 2012-09-25 16:59:08 +0000 |
| commit | 9f8a09ed743cedd9547bf0661d518647966ab114 (patch) | |
| tree | 9c7803d3b27a8ec22e91792ac7f7932efa128b20 /Examples/python/callback | |
| download | swig-tarball-master.tar.gz | |
Imported from /srv/lorry/lorry-area/swig-tarball/swig-1.3.40.tar.gz.HEADswig-1.3.40master
Diffstat (limited to 'Examples/python/callback')
| -rw-r--r-- | Examples/python/callback/Makefile | 22 | ||||
| -rw-r--r-- | Examples/python/callback/example.cxx | 4 | ||||
| -rw-r--r-- | Examples/python/callback/example.h | 22 | ||||
| -rw-r--r-- | Examples/python/callback/example.i | 13 | ||||
| -rw-r--r-- | Examples/python/callback/index.html | 19 | ||||
| -rw-r--r-- | Examples/python/callback/runme.py | 56 |
6 files changed, 136 insertions, 0 deletions
diff --git a/Examples/python/callback/Makefile b/Examples/python/callback/Makefile new file mode 100644 index 0000000..a29276e --- /dev/null +++ b/Examples/python/callback/Makefile @@ -0,0 +1,22 @@ +TOP = ../.. +SWIG = $(TOP)/../preinst-swig +CXXSRCS = example.cxx +TARGET = example +INTERFACE = example.i +LIBS = -lm +SWIGOPT = + +all:: + $(MAKE) -f $(TOP)/Makefile $(SWIGLIB) CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \ + SWIGOPT='$(SWIGOPT)' TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' python_cpp + +static:: + $(MAKE) -f $(TOP)/Makefile $(SWIGLIB) CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \ + SWIGOPT='$(SWIGOPT)' TARGET='mypython' INTERFACE='$(INTERFACE)' python_cpp_static + +clean:: + $(MAKE) -f $(TOP)/Makefile python_clean + rm -f $(TARGET).py + +check: all + $(MAKE) -f $(TOP)/Makefile python_run diff --git a/Examples/python/callback/example.cxx b/Examples/python/callback/example.cxx new file mode 100644 index 0000000..450d756 --- /dev/null +++ b/Examples/python/callback/example.cxx @@ -0,0 +1,4 @@ +/* File : example.cxx */ + +#include "example.h" + diff --git a/Examples/python/callback/example.h b/Examples/python/callback/example.h new file mode 100644 index 0000000..2a01949 --- /dev/null +++ b/Examples/python/callback/example.h @@ -0,0 +1,22 @@ +/* File : example.h */ + +#include <iostream> + +class Callback { +public: + virtual ~Callback() { std::cout << "Callback::~Callback()" << std:: endl; } + virtual void run() { std::cout << "Callback::run()" << std::endl; } +}; + + +class Caller { +private: + Callback *_callback; +public: + Caller(): _callback(0) {} + ~Caller() { delCallback(); } + void delCallback() { delete _callback; _callback = 0; } + void setCallback(Callback *cb) { delCallback(); _callback = cb; } + void call() { if (_callback) _callback->run(); } +}; + diff --git a/Examples/python/callback/example.i b/Examples/python/callback/example.i new file mode 100644 index 0000000..90beda0 --- /dev/null +++ b/Examples/python/callback/example.i @@ -0,0 +1,13 @@ +/* File : example.i */ +%module(directors="1") example +%{ +#include "example.h" +%} + +%include "std_string.i" + +/* turn on director wrapping Callback */ +%feature("director") Callback; + +%include "example.h" + diff --git a/Examples/python/callback/index.html b/Examples/python/callback/index.html new file mode 100644 index 0000000..e2017ec --- /dev/null +++ b/Examples/python/callback/index.html @@ -0,0 +1,19 @@ +<html> +<head> +<title>SWIG:Examples:python:callback</title> +</head> + +<body bgcolor="#ffffff"> + + +<tt>SWIG/Examples/python/extend/</tt> +<hr> + +<H2>Implementing C++ callbacks in Python</H2> + +<p> +This example illustrates how to use directors to implement C++ callbacks in Python. + +<hr> +</body> +</html> diff --git a/Examples/python/callback/runme.py b/Examples/python/callback/runme.py new file mode 100644 index 0000000..026e952 --- /dev/null +++ b/Examples/python/callback/runme.py @@ -0,0 +1,56 @@ +# file: runme.py + +# This file illustrates the cross language polymorphism using directors. + +import example + + +class PyCallback(example.Callback): + def __init__(self): + example.Callback.__init__(self) + def run(self): + print "PyCallback.run()" + +# Create an Caller instance + +caller = example.Caller() + +# Add a simple C++ callback (caller owns the callback, so +# we disown it first by clearing the .thisown flag). + +print "Adding and calling a normal C++ callback" +print "----------------------------------------" + +callback = example.Callback() +callback.thisown = 0 +caller.setCallback(callback) +caller.call() +caller.delCallback(); + +print +print "Adding and calling a Python callback" +print "------------------------------------" + +# Add a Python callback (caller owns the callback, so we +# disown it first by calling __disown__). + +caller.setCallback(PyCallback().__disown__()) +caller.call() +caller.delCallback() + +print +print "Adding and calling another Python callback" +print "------------------------------------------" + +# Lets do the same but use the weak reference this time. + +callback = PyCallback().__disown__() +caller.setCallback(callback) +caller.call() +caller.delCallback() + +# All done. + +print +print "python exit" + |