def __save__(self, qgis_project_file=None):
"""
Save the currect project. Because the normal project.write
loses
:param qgis_project_file: str
:return: None
"""
f, fn = os.path.split(self.qprjf)
temp_prj_n = fn + '.tmp'
out_filet = os.path.join(f, temp_prj_n)
out_file = qgis_project_file or self.qprjf
outf_info = QFileInfo(out_filet)
if os.path.exists(out_filet):
os.remove(out_filet)
logger.debug('Saving project to %s' % out_file)
assert self.qprj.write(
outf_info), 'failed to save QGIS project to file %s ' % out_filet
doc = QDomDocument()
doc.setContent(xml_jano.etree.tostring(
xml_jano.etree.parse(out_filet)))
qgisNode = doc.documentElement()
os.remove(out_filet)
# canvas bridge for layer order in new style (after 2.4 version)
self.canvas_bridge.writeProject(doc)
# and it seesm there is old style legend order (before 2.4 version ) so I add this element as well for compatibility
if self.canvas_bridge.hasCustomLayerOrder():
logger.debug(
'...creating legend element for old style (<2.4 version) projects to specifiy layer order '
)
clorder = self.canvas_bridge.customLayerOrder()
lelem = QgsLayerTreeUtils.writeOldLegend(
doc, self.qprj.layerTreeRoot(),
self.canvas_bridge.hasCustomLayerOrder(), clorder)
qgisNode.appendChild(lelem)
# now the composers
for composer_name in self.composers:
logger.debug('...creating composer %s' % composer_name)
lxml_composer_el = self.qpath_extract_element(
qpath='Composer[@title="%s"]' % composer_name)
title = lxml_composer_el.get('title')
visible = lxml_composer_el.get('visible')
qt_composer_doc = QDomDocument()
qt_composer_doc.setContent(
'<Composer title="%s" visible="%s"></Composer>' %
(title, visible))
composer_el = qt_composer_doc.documentElement()
# print qt_composer_doc.toString()
composition = self.get_composition_object(
composer_name=composer_name)
assert composition.writeXML(
composer_el,
qt_composer_doc), 'Failed to write composer %s' % composer_name
qgisNode.appendChild(qt_composer_doc.documentElement())
# and finally save it
fh = QFile(out_file)
qts = QTextStream(fh)
if not fh.open(QIODevice.WriteOnly):
raise IOError, unicode(fh.errorString())
qts.setCodec('UTF-8')
doc.save(qts, 2)
def save(self, qgis_project_file=None):
"""
:param qgis_project_file:
:return:
"""
out_file = qgis_project_file or self.qprjf
logger.info('Saving %s to %s ' % (self.qprjf, out_file))
logger.debug('...creating main "qgis" element')
#root with attrs
doc = QDomDocument()
qgisNode = doc.createElement('qgis')
qgisNode.setAttribute('projectname', self.qprj.title())
qgisNode.setAttribute('version', QGis.QGIS_VERSION)
doc.appendChild(qgisNode)
#title
title_node = doc.createElement('title')
titleText = doc.createTextNode(self.qprj.title())
title_node.appendChild(titleText)
qgisNode.appendChild(title_node)
logger.debug('...creating transaction element')
#transaction, added in 2.16
transactionNode = doc.createElement('autotransaction')
try:
transactionNode.setAttribute('active',
int(self.qprj.autoTransaction()))
except AttributeError: # qgis version < 2.16
transactionNode.setAttribute('active', 0)
qgisNode.appendChild(transactionNode)
logger.debug('...creating evaluateDefaultValues element')
#evaluate defaults
evaluateDefaultValuesNode = doc.createElement('evaluateDefaultValues')
try:
evaluateDefaultValuesNode.setAttribute(
'active', int(self.qprj.evaluateDefaultValues()))
except AttributeError:
evaluateDefaultValuesNode.setAttribute('active', 0)
qgisNode.appendChild(evaluateDefaultValuesNode)
#layer tree element
logger.debug('...creating layer tree element')
util.introspect(self.canvas, namefilter='legend')
self.qprj.layerTreeRoot().writeXML(qgisNode)
#relations,
logger.debug('...creating relations element')
relations_el = doc.createElement('relations')
for rn, r in self.qprj.relationManager().relations().items():
r.writeXML(relations_el, doc)
qgisNode.appendChild(relations_el)
logger.debug('...creating map canvas/map settings element')
#now map canvas
self.canvas.writeProject(doc)
logger.debug(
'...creating layer order element for new (>2.4 version) projects ')
#canvas bridge for layer order in new style (after 2.4 version)
self.canvas_bridge.writeProject(doc)
#and it seesm there is old style legend order (before 2.4 version ) so I add this element as well for compatibility
if self.canvas_bridge.hasCustomLayerOrder():
logger.debug(
'...creating legend element for old style (<2.4 version) projects to specifiy layer order '
)
clorder = self.canvas_bridge.defaultLayerOrder()
lelem = QgsLayerTreeUtils.writeOldLegend(
doc, self.qprj.layerTreeRoot(),
self.canvas_bridge.hasCustomLayerOrder(), clorder)
qgisNode.appendChild(lelem)
# now the composers
for composer_name in self.composers:
logger.debug('...creating composer %s' % composer_name)
lxml_composer_el = self.qpath_extract_element(
qpath='Composer[@title="%s"]' % composer_name)
title = lxml_composer_el.get('title')
visible = lxml_composer_el.get('visible')
qt_composer_doc = QDomDocument()
qt_composer_doc.setContent(
'<Composer title="%s" visible="%s"></Composer>' %
(title, visible))
composer_el = qt_composer_doc.documentElement()
#print qt_composer_doc.toString()
composition = self.get_composition_object(
composer_name=composer_name)
assert composition.writeXML(
composer_el,
qt_composer_doc), 'Failed to write composer %s' % composer_name
qgisNode.appendChild(qt_composer_doc.documentElement())
#util.introspect(self.qprj.layerTreeRoot(), namefilter='layer')
projectLayersNode = doc.createElement('projectlayers')
logger.debug('...creating project layers element')
for ml in self.canvas.layers():
maplayerElem = doc.createElement('maplayer')
ml.writeLayerXML(maplayerElem, doc)
self.qprj.emit(QtCore.SIGNAL('writeMapLayer'), ml, maplayerElem,
doc)
projectLayersNode.appendChild(maplayerElem)
qgisNode.appendChild(projectLayersNode)
#TODO find out how to read all the properties
logger.debug('...creating project properties')
prop_content = self.__fetch_properties__()
prop_doc = QDomDocument()
prop_doc.setContent(prop_content)
qgisNode.appendChild(prop_doc.documentElement())
# util.introspect(self.qprj )
# print xml.etree.tostring(self.qpath_extract_element('/properties'))
# print self.qprj.entryList('Digitizing', '')
# print self.qprj.entryList('/', '')
# print self.qprj.readEntry('Digitizing', 'SnappingMode')
# print self.qprj.property('Digitizing')
self.qprj.visibilityPresetCollection().writeXML(doc)
# and finally save it
fh = QFile(out_file)
qts = QTextStream(fh)
if not fh.open(QIODevice.WriteOnly):
raise IOError, unicode(fh.errorString())
qts.setCodec('UTF-8')
doc.save(qts, 2)