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PyQGIS: few additions for more pythonic api

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- QgsVectorLayer and QgsVectorDataProvider support iterating
- QgsFeature allows direct access to attributes (get/set/del)


git-svn-id: http://svn.osgeo.org/qgis/trunk@12878 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
wonder 2010-02-04 21:08:33 +00:00
parent 54b079e680
commit 2034de2bc9
3 changed files with 62 additions and 0 deletions
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26
python/core/qgsfeature.sip
View File

@ -8,6 +8,32 @@ class QgsFeature
public:
SIP_PYOBJECT __getitem__(int key);
%MethodCode
const QgsAttributeMap& attrMap = sipCpp->attributeMap();
QgsAttributeMap::const_iterator it = attrMap.find(a0);
if (it == attrMap.end())
PyErr_SetString(PyExc_KeyError, QByteArray::number(a0));
else
{
QVariant* v = new QVariant(it.value());
sipRes = sipConvertFromInstance(v, sipClass_QVariant, Py_None);
}
%End
void __setitem__(int key, QVariant value);
%MethodCode
sipCpp->addAttribute(a0, *a1);
%End
void __delitem__(int key);
%MethodCode
if (sipCpp->attributeMap().contains(a0))
sipCpp->deleteAttribute(a0);
else
PyErr_SetString(PyExc_KeyError, QByteArray::number(a0));
%End
//! Constructor
QgsFeature(int id = 0, QString typeName = "" );

17
python/core/qgsvectordataprovider.sip
View File

@ -7,6 +7,23 @@ class QgsVectorDataProvider : QgsDataProvider
public:
QgsVectorDataProvider* __iter__();
%MethodCode
sipRes = sipCpp;
%End
SIP_PYOBJECT __next__();
%MethodCode
QgsFeature* f = new QgsFeature;
if (sipCpp->nextFeature(*f))
sipRes = sipConvertFromInstance(f, sipClass_QgsFeature, Py_None);
else
{
delete f;
PyErr_SetString(PyExc_StopIteration,"");
}
%End
// If you add to this, please also add to capabilitiesString()
/**
* enumeration with capabilities that providers might implement

19
python/core/qgsvectorlayer.sip
View File

@ -5,6 +5,25 @@ class QgsVectorLayer : QgsMapLayer
%End
public:
QgsVectorLayer* __iter__();
%MethodCode
sipRes = sipCpp;
%End
SIP_PYOBJECT __next__();
%MethodCode
QgsFeature* f = new QgsFeature;
if (sipCpp->nextFeature(*f))
sipRes = sipConvertFromInstance(f, sipClass_QgsFeature, Py_None);
else
{
delete f;
PyErr_SetString(PyExc_StopIteration,"");
}
%End
enum EditType {
LineEdit,
UniqueValues,