def parse_xml(self):
"""Parse the xml file. Returns false if there is failure."""
xml_file = QFile(self._xml_path)
if not xml_file.open(QIODevice.ReadOnly):
return False
document = QDomDocument()
if not document.setContent(xml_file):
return False
xml_file.close()
document_element = document.documentElement()
if document_element.tagName() != 'qgis_style':
return False
# Get all the symbols
self._symbols = []
symbols_element = document_element.firstChildElement('symbols')
symbol_element = symbols_element.firstChildElement()
while not symbol_element.isNull():
if symbol_element.tagName() == 'symbol':
symbol = QgsSymbolLayerV2Utils.loadSymbol(symbol_element)
if symbol:
self._symbols.append({
'name':
symbol_element.attribute('name'),
'symbol':
symbol
})
symbol_element = symbol_element.nextSiblingElement()
# Get all the colorramps
self._colorramps = []
ramps_element = document_element.firstChildElement('colorramps')
ramp_element = ramps_element.firstChildElement()
while not ramp_element.isNull():
if ramp_element.tagName() == 'colorramp':
colorramp = QgsSymbolLayerV2Utils.loadColorRamp(ramp_element)
if colorramp:
self._colorramps.append({
'name':
ramp_element.attribute('name'),
'colorramp':
colorramp
})
ramp_element = ramp_element.nextSiblingElement()
return True
def check_pat_symbols():
pat_xml = os.path.join(PLUGIN_DIR, 'PAT_Symbols.xml')
if not os.path.exists(pat_xml):
return
loaded_date = read_setting(PLUGIN_NAME + "/PAT_SYMBOLOGY")
if loaded_date is not None:
loaded_date = datetime.strptime(loaded_date,'%Y-%m-%d %H:%M:%S')
xml_date = datetime.fromtimestamp(os.path.getmtime(pat_xml)).replace(microsecond=0)
if loaded_date is None or xml_date > loaded_date:
style = QgsStyleV2.defaultStyle()
# add a group if it doesn't exist.
group_id = style.groupId('PAT')
if group_id == 0:
group_id = style.addGroup('PAT')
xml_file = QFile(pat_xml)
document = QDomDocument()
if not document.setContent(xml_file):
LOGGER.debug('Could not open file {}'.format(xml_file))
return
xml_file.close()
document_element = document.documentElement()
if document_element.tagName() != 'qgis_style':
LOGGER.debug("File {} doesn't contain qgis styles".format(xml_file))
return
# Get all the symbols
symbols = []
symbols_element = document_element.firstChildElement('symbols')
symbol_element = symbols_element.firstChildElement()
while not symbol_element.isNull():
if symbol_element.tagName() == 'symbol':
symbol = QgsSymbolLayerV2Utils.loadSymbol(symbol_element)
if symbol:
symbols.append({
'name': symbol_element.attribute('name'),
'symbol': symbol
})
symbol_element = symbol_element.nextSiblingElement()
# Get all the colorramps
colorramps = []
ramps_element = document_element.firstChildElement('colorramps')
ramp_element = ramps_element.firstChildElement()
while not ramp_element.isNull():
if ramp_element.tagName() == 'colorramp':
colorramp = QgsSymbolLayerV2Utils.loadColorRamp(ramp_element)
if colorramp:
colorramps.append({
'name': ramp_element.attribute('name'),
'colorramp': colorramp
})
ramp_element = ramp_element.nextSiblingElement()
for symbol in symbols:
if style.addSymbol(symbol['name'], symbol['symbol'], True):
style.group(QgsStyleV2.SymbolEntity, symbol['name'], group_id)
for colorramp in colorramps:
if style.addColorRamp(colorramp['name'], colorramp['colorramp'], True):
style.group(QgsStyleV2.ColorrampEntity, colorramp['name'], group_id)
LOGGER.info(
'Loaded {} symbols and {} colour ramps into group {}'.format(len(symbols), len(colorramps),
style.groupName(group_id)))
write_setting(PLUGIN_NAME + '/PAT_SYMBOLOGY', xml_date.strftime('%Y-%m-%d %H:%M:%S'))
return
