def test_legend_key_to_expression(self):
renderer = QgsGraduatedSymbolRenderer()
renderer.setClassAttribute('field_name')
exp, ok = renderer.legendKeyToExpression('xxxx', None)
self.assertFalse(ok)
# no categories
exp, ok = renderer.legendKeyToExpression('0', None)
self.assertFalse(ok)
symbol_a = createMarkerSymbol()
renderer.addClassRange(QgsRendererRange(1, 2, symbol_a, 'a'))
symbol_b = createMarkerSymbol()
renderer.addClassRange(QgsRendererRange(5, 6, symbol_b, 'b'))
symbol_c = createMarkerSymbol()
renderer.addClassRange(QgsRendererRange(15.5, 16.5, symbol_c, 'c', False))
exp, ok = renderer.legendKeyToExpression('0', None)
self.assertTrue(ok)
self.assertEqual(exp, "(field_name >= 1) AND (field_name <= 2)")
exp, ok = renderer.legendKeyToExpression('1', None)
self.assertTrue(ok)
self.assertEqual(exp, "(field_name >= 5) AND (field_name <= 6)")
exp, ok = renderer.legendKeyToExpression('2', None)
self.assertTrue(ok)
self.assertEqual(exp, "(field_name >= 15.5) AND (field_name <= 16.5)")
exp, ok = renderer.legendKeyToExpression('3', None)
self.assertFalse(ok)
layer = QgsVectorLayer("Point?field=field_name:double&field=fldint:integer", "addfeat", "memory")
# with layer
exp, ok = renderer.legendKeyToExpression('2', layer)
self.assertTrue(ok)
self.assertEqual(exp, """("field_name" >= 15.5) AND ("field_name" <= 16.5)""")
# with expression as attribute
renderer.setClassAttribute('log("field_name")')
exp, ok = renderer.legendKeyToExpression('0', None)
self.assertTrue(ok)
self.assertEqual(exp, """(log("field_name") >= 1) AND (log("field_name") <= 2)""")
exp, ok = renderer.legendKeyToExpression('1', None)
self.assertTrue(ok)
self.assertEqual(exp, """(log("field_name") >= 5) AND (log("field_name") <= 6)""")
exp, ok = renderer.legendKeyToExpression('2', None)
self.assertTrue(ok)
self.assertEqual(exp, """(log("field_name") >= 15.5) AND (log("field_name") <= 16.5)""")
exp, ok = renderer.legendKeyToExpression('2', layer)
self.assertTrue(ok)
self.assertEqual(exp, """(log("field_name") >= 15.5) AND (log("field_name") <= 16.5)""")
def testQgsGraduatedSymbolRenderer_2(self):
"""Test QgsGraduatedSymbolRenderer: Adding /removing/editing classes """
# Create a renderer
renderer = QgsGraduatedSymbolRenderer()
symbol = createMarkerSymbol()
renderer.setSourceSymbol(symbol.clone())
symbol.setColor(QColor(255, 0, 0))
# Add class without start and end ranges
renderer.addClass(symbol.clone())
renderer.addClass(symbol.clone())
renderer.updateRangeLabel(1, 'Second range')
renderer.updateRangeLowerValue(1, 10.0)
renderer.updateRangeUpperValue(1, 25.0)
renderer.updateRangeRenderState(1, False)
symbol.setColor(QColor(0, 0, 255))
renderer.updateRangeSymbol(1, symbol.clone())
# Add as a rangeobject
symbol.setColor(QColor(0, 255, 0))
range = QgsRendererRange(20.0, 25.5, symbol.clone(), 'Third range',
False)
renderer.addClassRange(range)
# Add class by lower and upper
renderer.addClassLowerUpper(25.5, 30.5)
# (Update label for sorting tests)
renderer.updateRangeLabel(3, 'Another range')
self.assertEqual(
dumpRangeLabels(renderer.ranges()),
'(0.0 - 0.0,Second range,Third range,Another range,)',
'Added ranges labels not correct')
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(0.0000-0.0000,10.0000-25.0000,20.0000-25.5000,25.5000-30.5000,)',
'Added ranges lower/upper values not correct')
# Check that clone function works
renderer2 = renderer.clone()
self.assertEqual(dumpGraduatedRenderer(renderer),
dumpGraduatedRenderer(renderer2),
"clone function doesn't replicate renderer properly")
# Check save and reload from Dom works
doc = QDomDocument()
element = renderer.save(doc)
renderer2 = QgsGraduatedSymbolRenderer.create(element)
self.assertEqual(
dumpGraduatedRenderer(renderer), dumpGraduatedRenderer(renderer2),
"Save/create from DOM doesn't replicate renderer properly")
# Check sorting
renderer.sortByLabel()
self.assertEqual(
dumpRangeList(renderer.ranges(), labelsOnly=True),
'(0.0 - 0.0,Another range,Second range,Third range,)',
'sortByLabel not correct')
renderer.sortByValue()
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(0.0000-0.0000,10.0000-25.0000,20.0000-25.5000,25.5000-30.5000,)',
'sortByValue not correct')
renderer.sortByValue(Qt.DescendingOrder)
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(25.5000-30.5000,20.0000-25.5000,10.0000-25.0000,0.0000-0.0000,)',
'sortByValue descending not correct')
# Check deleting
renderer.deleteClass(2)
self.assertEqual(dumpRangeBreaks(renderer.ranges()),
'(25.5000-30.5000,20.0000-25.5000,0.0000-0.0000,)',
'deleteClass not correct')
renderer.deleteAllClasses()
self.assertEqual(len(renderer.ranges()), 0,
"deleteAllClasses didn't delete all")
def testQgsGraduatedSymbolRenderer_2(self):
"""Test QgsGraduatedSymbolRenderer: Adding /removing/editing classes """
# Create a renderer
renderer = QgsGraduatedSymbolRenderer()
symbol = createMarkerSymbol()
renderer.setSourceSymbol(symbol.clone())
symbol.setColor(QColor(255, 0, 0))
# Add class without start and end ranges
renderer.addClass(symbol.clone())
renderer.addClass(symbol.clone())
renderer.updateRangeLabel(1, 'Second range')
renderer.updateRangeLowerValue(1, 10.0)
renderer.updateRangeUpperValue(1, 25.0)
renderer.updateRangeRenderState(1, False)
symbol.setColor(QColor(0, 0, 255))
renderer.updateRangeSymbol(1, symbol.clone())
# Add as a rangeobject
symbol.setColor(QColor(0, 255, 0))
range = QgsRendererRange(20.0, 25.5, symbol.clone(), 'Third range', False)
renderer.addClassRange(range)
# Add class by lower and upper
renderer.addClassLowerUpper(25.5, 30.5)
# (Update label for sorting tests)
renderer.updateRangeLabel(3, 'Another range')
self.assertEqual(
dumpRangeLabels(renderer.ranges()),
'(0.0 - 0.0,Second range,Third range,Another range,)',
'Added ranges labels not correct')
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(0.0000-0.0000,10.0000-25.0000,20.0000-25.5000,25.5000-30.5000,)',
'Added ranges lower/upper values not correct')
# Check that clone function works
renderer2 = renderer.clone()
self.assertEqual(
dumpGraduatedRenderer(renderer),
dumpGraduatedRenderer(renderer2),
"clone function doesn't replicate renderer properly"
)
# Check save and reload from Dom works
doc = QDomDocument()
element = renderer.save(doc, QgsReadWriteContext())
renderer2 = QgsGraduatedSymbolRenderer.create(element, QgsReadWriteContext())
self.assertEqual(
dumpGraduatedRenderer(renderer),
dumpGraduatedRenderer(renderer2),
"Save/create from DOM doesn't replicate renderer properly"
)
# Check sorting
renderer.sortByLabel()
self.assertEqual(
dumpRangeList(renderer.ranges(), labelsOnly=True),
'(0.0 - 0.0,Another range,Second range,Third range,)',
'sortByLabel not correct')
renderer.sortByValue()
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(0.0000-0.0000,10.0000-25.0000,20.0000-25.5000,25.5000-30.5000,)',
'sortByValue not correct')
renderer.sortByValue(Qt.DescendingOrder)
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(25.5000-30.5000,20.0000-25.5000,10.0000-25.0000,0.0000-0.0000,)',
'sortByValue descending not correct')
# Check deleting
renderer.deleteClass(2)
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(25.5000-30.5000,20.0000-25.5000,0.0000-0.0000,)',
'deleteClass not correct')
renderer.deleteAllClasses()
self.assertEqual(len(renderer.ranges()), 0, "deleteAllClasses didn't delete all")
