/
pythonqtsupportplugin.cpp
247 lines (167 loc) · 7.41 KB
/
pythonqtsupportplugin.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
/*******************************************************************************
Copyright (C) The University of Auckland
OpenCOR is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenCOR is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://gnu.org/licenses>.
*******************************************************************************/
//==============================================================================
// PythonQt support plugin
//==============================================================================
#include "pythoninterface.h"
#include "pythonqtsupport.h"
#include "pythonqtsupportplugin.h"
#include "solverinterface.h"
//==============================================================================
#include "pythonbegin.h"
#include "PythonQt/PythonQt_QtAll.h"
#include "pythonend.h"
//==============================================================================
namespace OpenCOR {
namespace PythonQtSupport {
//==============================================================================
PLUGININFO_FUNC PythonQtSupportPluginInfo()
{
Descriptions descriptions;
descriptions.insert("en", QString::fromUtf8(R"(a plugin to support <a href="https://mevislab.github.io/pythonqt/">PythonQt</a>.)"));
descriptions.insert("fr", QString::fromUtf8(R"(une extension pour supporter <a href="https://mevislab.github.io/pythonqt/">PythonQt</a>.)"));
return new PluginInfo(PluginInfo::Category::Support, false, false,
QStringList() << "PythonQt" << "PythonSupport",
descriptions);
}
//==============================================================================
// Plugin interface
//==============================================================================
bool PythonQtSupportPlugin::definesPluginInterfaces()
{
// We don't handle this interface...
return false;
}
//==============================================================================
bool PythonQtSupportPlugin::pluginInterfacesOk(const QString &pFileName,
QObject *pInstance)
{
Q_UNUSED(pFileName)
Q_UNUSED(pInstance)
// We don't handle this interface...
return false;
}
//==============================================================================
void PythonQtSupportPlugin::initializePlugin()
{
// Create and initialise a new PythonQt instance
PythonQt::init(PythonQt::RedirectStdOut);
// Capture and redirect PythonQt's standard output and error
connect(PythonQt::self(), &PythonQt::pythonStdOut,
this, &PythonQtSupportPlugin::printStdOut);
connect(PythonQt::self(), &PythonQt::pythonStdErr,
this, &PythonQtSupportPlugin::printStdErr);
// Remap SIGINT
// Note: indeed, Python maps SIGINT (Ctrl+C) to its own handler, so we need
// to remap it to the default handler so that Ctrl+C can work...
#ifdef SIGINT
signal(SIGINT, SIG_DFL);
#endif
// Initialise Qt binding for Python
PythonQt_QtAll::init();
// Create a Python module to access OpenCOR's objects
mModule = PythonQt::self()->createModuleFromScript("opencor");
// Give a file name to our Python module
// Note: indeed, IPython tracebacks are noisy if modules don't have have a
// file name...
mModule.addVariable("__file__", "OpenCOR");
// We already have set PYTHONHOME, so get it
QString pythonHome = qEnvironmentVariable("PYTHONHOME");
// The script to update Python scripts
QString setPythonPathScript = pythonHome
#if defined(Q_OS_WIN)
+ "/Scripts"
#else
+ "/bin"
#endif
+ "/set_python_path.py";
// Create a buffer in which to pass arguments to Python
mArgV = reinterpret_cast<wchar_t **>(PyMem_RawMalloc(4*sizeof(wchar_t*)));
// Set arguments for `set_python_path`
// Note: we need to use an intermediate variable as otherwise the cast
// results in an empty string
auto wSetPythonPathScript = setPythonPathScript.toStdWString();
auto wPythonHome = pythonHome.toStdWString();
mArgV[0] = const_cast<wchar_t *>(wSetPythonPathScript.c_str());
mArgV[1] = const_cast<wchar_t *>(wPythonHome.c_str());
mArgV[2] = const_cast<wchar_t *>(L"-s");
mArgV[3] = nullptr;
PySys_SetArgvEx(3, mArgV, 0);
// Actually update the path to Python in scripts
PythonQtSupport::evaluateFile(setPythonPathScript);
// Clear the argument buffer so that `sys.argv` is empty in the GUI console
mArgV[0] = const_cast<wchar_t *>(L"");
mArgV[1] = nullptr;
PySys_SetArgvEx(1, mArgV, 0);
}
//==============================================================================
void PythonQtSupportPlugin::finalizePlugin()
{
// Delete some internal objects
PyMem_RawFree(mArgV);
// Clean up PythonQt
PythonQt::cleanup();
}
//==============================================================================
void PythonQtSupportPlugin::pluginsInitialized(const Plugins &pLoadedPlugins)
{
// Register the Solver::Properties class with Qt
// Note: indeed, so that it gets automatically wrapped to Python...
qRegisterMetaType<OpenCOR::Solver::Solver::Properties>("Solver::Solver::Properties");
// Register wrappers for every plugin that has a Python interface
for (auto plugin : pLoadedPlugins) {
PythonInterface *pythonInterface = qobject_cast<PythonInterface *>(plugin->instance());
if (pythonInterface != nullptr) {
pythonInterface->registerPythonClasses(mModule);
}
}
}
//==============================================================================
void PythonQtSupportPlugin::loadSettings(QSettings &pSettings)
{
Q_UNUSED(pSettings)
// We don't handle this interface...
}
//==============================================================================
void PythonQtSupportPlugin::saveSettings(QSettings &pSettings) const
{
Q_UNUSED(pSettings)
// We don't handle this interface...
}
//==============================================================================
void PythonQtSupportPlugin::handleUrl(const QUrl &pUrl)
{
Q_UNUSED(pUrl)
// We don't handle this interface...
}
//==============================================================================
// Plugin specific
//==============================================================================
void PythonQtSupportPlugin::printStdOut(const QString &pString)
{
// Print the given text to the standard output
std::cout << qPrintable(pString);
}
//==============================================================================
void PythonQtSupportPlugin::printStdErr(const QString &pString)
{
// Print the given text to the standard error
std::cerr << qPrintable(pString);
}
//==============================================================================
} // namespace PythonQtSupport
} // namespace OpenCOR
//==============================================================================
// End of file
//==============================================================================