This is not specific to Raspbian, but happens on all systems
where qreal == float (i.e. all ARM systems). This particular
issue happens because in qbrush.sip we have:
typedef QVector<QPair<double, QColor>> QGradientStops;
while in Qt 5.1 qreal is used instead of double:
typedef QPair<qreal, QColor> QGradientStop;
typedef QVector<QGradientStop> QGradientStops;
However, this is not the only issue that makes the build fail.
In Debian, we have a patch that fixes more issues. We haven't
yet finished updating it for PyQt5, so it doesn't fully solve
the problem (any help in finalizing it is appreciated). I have
attached the current version of that patch.
--
Dmitry Shachnev
## 03_qreal_float_support.dpatch by Michael Casadevall <sonicmcta...@gmail.com>
--- a/configure.py
+++ b/configure.py
@@ -406,8 +406,9 @@
out << "PyQt_NoOpenGLES\\n";
#endif
- if (sizeof (qreal) != sizeof (double))
+#if defined(QT_NO_FPU) || defined(QT_ARCH_ARM) || defined(QT_ARCH_WINDOWSCE)
out << "PyQt_qreal_double\\n";
+#endif
return 0;
}
--- a/sip/QtCore/qlist.sip
+++ b/sip/QtCore/qlist.sip
@@ -798,3 +798,222 @@
return sipGetState(sipTransferObj);
%End
};
+
+// If we're on an architecture where qreal != double, then we need to also
+// explicately handle doubles. On architectures where qreal == double, they
+// will automaticially be cast upwards
+
+%If (!PyQt_qreal_double)
+
+// QList<QPair<double, double> > is implemented as a Python list of 2-element tuples.
+%MappedType QList<QPair<double, double> >
+{
+%TypeHeaderCode
+#include <qlist.h>
+#include <qpair.h>
+%End
+
+%ConvertFromTypeCode
+ // Create the list.
+ PyObject *l;
+
+ if ((l = PyList_New(sipCpp->size())) == NULL)
+ return NULL;
+
+ // Set the list elements.
+ for (int i = 0; i < sipCpp->size(); ++i)
+ {
+ const QPair<double, double> &p = sipCpp->at(i);
+ PyObject *pobj;
+
+ if ((pobj = Py_BuildValue((char *)"dd", p.first, p.second)) == NULL)
+ {
+ Py_DECREF(l);
+
+ return NULL;
+ }
+
+ PyList_SET_ITEM(l, i, pobj);
+ }
+
+ return l;
+%End
+
+%ConvertToTypeCode
+ SIP_SSIZE_T len;
+
+ // Check the type if that is all that is required.
+ if (sipIsErr == NULL)
+ {
+ if (!PySequence_Check(sipPy) || (len = PySequence_Size(sipPy)) < 0)
+ return 0;
+
+ for (SIP_SSIZE_T i = 0; i < len; ++i)
+ {
+ PyObject *tup = PySequence_ITEM(sipPy, i);
+
+ if (!PySequence_Check(tup) || PySequence_Size(tup) != 2)
+ return 0;
+ }
+
+ return 1;
+ }
+
+ QList<QPair<double, double> > *ql = new QList<QPair<double, double> >;
+ len = PySequence_Size(sipPy);
+
+ for (SIP_SSIZE_T i = 0; i < len; ++i)
+ {
+ PyObject *tup = PySequence_ITEM(sipPy, i);
+
+ double first = PyFloat_AsDouble(PySequence_ITEM(tup, 0));
+ double second = PyFloat_AsDouble(PySequence_ITEM(tup, 1));
+
+ ql->append(QPair<double, double>(first, second));
+ }
+
+ *sipCppPtr = ql;
+
+ return sipGetState(sipTransferObj);
+%End
+};
+// QList<QPair<double, TYPE> > is implemented as a Python list of 2-element tuples.
+template<double, TYPE>
+%MappedType QList<QPair<double, TYPE> >
+{
+%TypeHeaderCode
+#include <qlist.h>
+#include <qpair.h>
+%End
+
+%ConvertFromTypeCode
+ // Create the list.
+ PyObject *l;
+
+ if ((l = PyList_New(sipCpp->size())) == NULL)
+ return NULL;
+
+ // Set the list elements.
+ for (int i = 0; i < sipCpp->size(); ++i)
+ {
+ const QPair<double, TYPE> &p = sipCpp->at(i);
+ TYPE *t = new TYPE(p.second);
+ PyObject *pobj;
+
+ if ((pobj = sipBuildResult(NULL, "(dB)", p.first, t, sipClass_TYPE, sipTransferObj)) == NULL)
+ {
+ Py_DECREF(l);
+ delete t;
+
+ return NULL;
+ }
+
+ PyList_SET_ITEM(l, i, pobj);
+ }
+
+ return l;
+%End
+
+%ConvertToTypeCode
+ SIP_SSIZE_T len;
+
+ // Check the type if that is all that is required.
+ if (sipIsErr == NULL)
+ {
+ if (!PySequence_Check(sipPy) || (len = PySequence_Size(sipPy)) < 0)
+ return 0;
+
+ for (SIP_SSIZE_T i = 0; i < len; ++i)
+ {
+ PyObject *tup = PySequence_ITEM(sipPy, i);
+
+ if (!PySequence_Check(tup) || PySequence_Size(tup) != 2)
+ return 0;
+
+ if (!sipCanConvertToInstance(PySequence_ITEM(tup, 1), sipClass_TYPE, SIP_NOT_NONE))
+ return 0;
+ }
+
+ return 1;
+ }
+
+ QList<QPair<double, TYPE> > *ql = new QList<QPair<double, TYPE> >;
+ len = PySequence_Size(sipPy);
+
+ for (SIP_SSIZE_T i = 0; i < len; ++i)
+ {
+ PyObject *tup = PySequence_ITEM(sipPy, i);
+ double d;
+ int state;
+
+ d = PyFloat_AsDouble(PySequence_ITEM(tup, 0));
+ TYPE *t = reinterpret_cast<TYPE *>(sipConvertToInstance(PySequence_ITEM(tup, 1), sipClass_TYPE, sipTransferObj, SIP_NOT_NONE, &state, sipIsErr));
+
+ if (*sipIsErr)
+ {
+ sipReleaseInstance(t, sipClass_TYPE, state);
+
+ delete ql;
+ return 0;
+ }
+
+ ql->append(QPair<double, TYPE>(d, *t));
+
+ sipReleaseInstance(t, sipClass_TYPE, state);
+ }
+
+ *sipCppPtr = ql;
+
+ return sipGetState(sipTransferObj);
+%End
+};
+// QList<double> is implemented as a Python list of doubles.
+%MappedType QList<double>
+{
+%TypeHeaderCode
+#include <qlist.h>
+%End
+
+%ConvertFromTypeCode
+ // Create the list.
+ PyObject *l;
+
+ if ((l = PyList_New(sipCpp->size())) == NULL)
+ return NULL;
+
+ // Set the list elements.
+ for (int i = 0; i < sipCpp->size(); ++i)
+ {
+ PyObject *pobj;
+
+ if ((pobj = PyFloat_FromDouble(sipCpp->value(i))) == NULL)
+ {
+ Py_DECREF(l);
+
+ return NULL;
+ }
+
+ PyList_SET_ITEM(l, i, pobj);
+ }
+
+ return l;
+%End
+
+%ConvertToTypeCode
+ // Check the type if that is all that is required.
+ if (sipIsErr == NULL)
+ return (PySequence_Check(sipPy) && PySequence_Size(sipPy) >= 0);
+
+ QList<double> *ql = new QList<double>;
+ SIP_SSIZE_T len = PySequence_Size(sipPy);
+
+ for (SIP_SSIZE_T i = 0; i < len; ++i)
+ ql->append(PyFloat_AsDouble(PySequence_ITEM(sipPy, i)));
+
+ *sipCppPtr = ql;
+
+ return sipGetState(sipTransferObj);
+%End
+};
+
+%End
--- a/sip/QtGui/qbrush.sip
+++ b/sip/QtGui/qbrush.sip
@@ -119,7 +119,7 @@
QDataStream &operator>>(QDataStream &, QBrush & /Constrained/) /ReleaseGIL/;
QDataStream &operator<<(QDataStream &, const QBrush & /Constrained/) /ReleaseGIL/;
-typedef QVector<QPair<double, QColor>> QGradientStops;
+typedef QVector<QPair<qreal, QColor>> QGradientStops;
class QGradient
{
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