diff options
Diffstat (limited to 'platform/darwin/src/NSComparisonPredicate+MGLAdditions.mm')
| -rw-r--r-- | platform/darwin/src/NSComparisonPredicate+MGLAdditions.mm | 105 |
1 files changed, 103 insertions, 2 deletions
diff --git a/platform/darwin/src/NSComparisonPredicate+MGLAdditions.mm b/platform/darwin/src/NSComparisonPredicate+MGLAdditions.mm index 295b3b21f8..ac2d598d05 100644 --- a/platform/darwin/src/NSComparisonPredicate+MGLAdditions.mm +++ b/platform/darwin/src/NSComparisonPredicate+MGLAdditions.mm @@ -5,8 +5,7 @@ @implementation NSComparisonPredicate (MGLAdditions) -- (mbgl::style::Filter)mgl_filter -{ +- (mbgl::style::Filter)mgl_filter { NSExpression *leftExpression = self.leftExpression; NSExpression *rightExpression = self.rightExpression; NSExpressionType leftType = leftExpression.expressionType; @@ -18,6 +17,25 @@ mbgl::style::EqualsFilter eqFilter; eqFilter.key = self.mgl_keyPath.UTF8String; eqFilter.value = self.mgl_constantValue; + + // Convert $type == to TypeEqualsFilter. + if (eqFilter.key == "$type") { + mbgl::style::TypeEqualsFilter typeEqFilter; + typeEqFilter.value = self.mgl_featureType; + return typeEqFilter; + } + + // Convert $id == to IdentifierEqualsFilter. + if (eqFilter.key == "$id") { + // Convert $id == nil to NotHasIdentifierFilter. + if (eqFilter.value.is<mbgl::NullValue>()) { + return mbgl::style::NotHasIdentifierFilter(); + } + + mbgl::style::IdentifierEqualsFilter idEqFilter; + idEqFilter.value = self.mgl_featureIdentifier; + return idEqFilter; + } // Convert == nil to NotHasFilter. if (eqFilter.value.is<mbgl::NullValue>()) { @@ -32,6 +50,25 @@ mbgl::style::NotEqualsFilter neFilter; neFilter.key = self.mgl_keyPath.UTF8String; neFilter.value = self.mgl_constantValue; + + // Convert $type != to TypeNotEqualsFilter. + if (neFilter.key == "$type") { + mbgl::style::TypeNotEqualsFilter typeNeFilter; + typeNeFilter.value = self.mgl_featureType; + return typeNeFilter; + } + + // Convert $id != to IdentifierNotEqualsFilter. + if (neFilter.key == "$id") { + // Convert $id != nil to HasIdentifierFilter. + if (neFilter.value.is<mbgl::NullValue>()) { + return mbgl::style::HasIdentifierFilter(); + } + + mbgl::style::IdentifierNotEqualsFilter idNeFilter; + idNeFilter.value = self.mgl_featureIdentifier; + return idNeFilter; + } // Convert != nil to HasFilter. if (neFilter.value.is<mbgl::NullValue>()) { @@ -103,6 +140,21 @@ [NSException raise:NSInvalidArgumentException format:@"Predicate cannot compare values IN attribute."]; } + + // Convert $type IN to TypeInFilter. + if ([leftExpression.keyPath isEqualToString:@"$type"]) { + mbgl::style::TypeInFilter typeInFilter; + typeInFilter.values = rightExpression.mgl_aggregateFeatureType; + return typeInFilter; + } + + // Convert $id IN to IdentifierInFilter. + if ([leftExpression.keyPath isEqualToString:@"$id"]) { + mbgl::style::IdentifierInFilter idInFilter; + idInFilter.values = rightExpression.mgl_aggregateFeatureIdentifier; + return idInFilter; + } + mbgl::style::InFilter inFilter; inFilter.key = leftExpression.keyPath.UTF8String; inFilter.values = rightExpression.mgl_aggregateMBGLValue; @@ -117,6 +169,21 @@ [NSException raise:NSInvalidArgumentException format:@"Predicate cannot compare attribute CONTAINS values."]; } + + // Convert CONTAINS $type to TypeInFilter. + if ([rightExpression.keyPath isEqualToString:@"$type"]) { + mbgl::style::TypeInFilter typeInFilter; + typeInFilter.values = leftExpression.mgl_aggregateFeatureType; + return typeInFilter; + } + + // Convert CONTAINS $id to IdentifierInFilter. + if ([rightExpression.keyPath isEqualToString:@"$id"]) { + mbgl::style::IdentifierInFilter idInFilter; + idInFilter.values = leftExpression.mgl_aggregateFeatureIdentifier; + return idInFilter; + } + mbgl::style::InFilter inFilter; inFilter.key = rightExpression.keyPath.UTF8String; inFilter.values = leftExpression.mgl_aggregateMBGLValue; @@ -192,4 +259,38 @@ return value; } +- (mbgl::FeatureType)mgl_featureType { + NSExpression *leftExpression = self.leftExpression; + NSExpression *rightExpression = self.rightExpression; + NSExpressionType leftType = leftExpression.expressionType; + NSExpressionType rightType = rightExpression.expressionType; + mbgl::FeatureType type; + if (leftType == NSKeyPathExpressionType && rightType == NSConstantValueExpressionType) { + type = rightExpression.mgl_featureType; + } else if (leftType == NSConstantValueExpressionType && rightType == NSKeyPathExpressionType) { + type = leftExpression.mgl_featureType; + } else { + [NSException raise:NSInvalidArgumentException + format:@"Comparison predicate must compare an attribute (as a key path) to a constant or vice versa."]; + } + return type; +} + +- (mbgl::FeatureIdentifier)mgl_featureIdentifier { + NSExpression *leftExpression = self.leftExpression; + NSExpression *rightExpression = self.rightExpression; + NSExpressionType leftType = leftExpression.expressionType; + NSExpressionType rightType = rightExpression.expressionType; + mbgl::FeatureIdentifier identifier; + if (leftType == NSKeyPathExpressionType && rightType == NSConstantValueExpressionType) { + identifier = rightExpression.mgl_featureIdentifier; + } else if (leftType == NSConstantValueExpressionType && rightType == NSKeyPathExpressionType) { + identifier = leftExpression.mgl_featureIdentifier; + } else { + [NSException raise:NSInvalidArgumentException + format:@"Comparison predicate must compare an attribute (as a key path) to a constant or vice versa."]; + } + return identifier; +} + @end |