def setLabel(self, stateLayer, isInternational):
'''
Sets label rules for layer in localization component
'''
# Getting base rule
root = QgsRuleBasedLabeling.Rule(QgsPalLayerSettings())
# Creating Rule
settings = QgsPalLayerSettings()
if isInternational:
settings.fieldName = 'concat(upper("nome"), \' - \', upper("SIGLA_PAIS"))'
else:
settings.fieldName = 'upper("nome")'
settings.placement = QgsPalLayerSettings.Horizontal
settings.centroidInside = True
settings.isExpression = True
textFormat = QgsTextFormat()
textFormat.setColor(QColor(0, 0, 0, 255))
textFormat.setSize(6)
settings.setFormat(textFormat)
# Add rule to root and apply to stateLayer
rule = QgsRuleBasedLabeling.Rule(settings)
rule.setActive(True)
root.appendChild(rule)
rules = QgsRuleBasedLabeling(root)
stateLayer.setLabeling(rules)
stateLayer.setLabelsEnabled(True)
stateLayer.triggerRepaint()
def createRules(self, label, expression):
'''
Returns a QgsRuleBasedLabeling based on label and expression
'''
settings = QgsPalLayerSettings()
settings.fieldName = label
settings.Placement = QgsPalLayerSettings.OverPoint
settings.centroidInside = True
settings.isExpression = True
textFormat = QgsTextFormat()
textFormat.setColor(QColor(0, 0, 0, 255))
textFormat.setSize(6)
textBuffer = QgsTextBufferSettings()
textBuffer.setColor(QColor(255, 255, 255, 255))
textBuffer.setSize(0.4)
textBuffer.setEnabled(True)
textFormat.setBuffer(textBuffer)
settings.setFormat(textFormat)
rule = QgsRuleBasedLabeling.Rule(settings)
rule.setFilterExpression(expression)
rule.setActive(True)
return rule
