| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.tools.idea.ui.properties.expressions.integer; |
| |
| import com.android.tools.idea.ui.properties.ObservableValue; |
| import com.android.tools.idea.ui.properties.core.IntValueProperty; |
| import com.android.tools.idea.ui.properties.expressions.bool.BooleanExpression; |
| import com.android.tools.idea.ui.properties.core.ObservableBool; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * A base class for expressions that do numerical comparisons. |
| */ |
| public abstract class ComparisonExpression extends BooleanExpression { |
| private final ObservableValue<Integer> myValueLhs; |
| private final ObservableValue<Integer> myValueRhs; |
| |
| public static ObservableBool isEqual(@NotNull ObservableValue<Integer> valueLhs, @NotNull ObservableValue<Integer> valueRhs) { |
| return new ComparisonExpression(valueLhs, valueRhs) { |
| @Override |
| protected Boolean compare(int valueLhs, int valueRhs) { |
| return valueLhs == valueRhs; |
| } |
| }; |
| } |
| |
| public static ObservableBool isGreaterThan(@NotNull ObservableValue<Integer> valueLhs, @NotNull ObservableValue<Integer> valueRhs) { |
| return new ComparisonExpression(valueLhs, valueRhs) { |
| @Override |
| protected Boolean compare(int valueLhs, int valueRhs) { |
| return valueLhs > valueRhs; |
| } |
| }; |
| } |
| |
| public static ObservableBool isGreaterThanEqual(@NotNull ObservableValue<Integer> valueLhs, @NotNull ObservableValue<Integer> valueRhs) { |
| return new ComparisonExpression(valueLhs, valueRhs) { |
| @Override |
| protected Boolean compare(int valueLhs, int valueRhs) { |
| return valueLhs >= valueRhs; |
| } |
| }; |
| } |
| |
| public static ObservableBool isLessThan(@NotNull ObservableValue<Integer> valueLhs, @NotNull ObservableValue<Integer> valueRhs) { |
| return new ComparisonExpression(valueLhs, valueRhs) { |
| @Override |
| protected Boolean compare(int valueLhs, int valueRhs) { |
| return valueLhs < valueRhs; |
| } |
| }; |
| } |
| |
| public static ObservableBool isLessThanEqual(@NotNull ObservableValue<Integer> valueLhs, @NotNull ObservableValue<Integer> valueRhs) { |
| return new ComparisonExpression(valueLhs, valueRhs) { |
| @Override |
| protected Boolean compare(int valueLhs, int valueRhs) { |
| return valueLhs <= valueRhs; |
| } |
| }; |
| } |
| |
| public static ObservableBool isEqual(@NotNull ObservableValue<Integer> valueLhs, int valueRhs) { |
| return new ComparisonExpression(valueLhs, new IntValueProperty(valueRhs)) { |
| @Override |
| protected Boolean compare(int valueLhs, int valueRhs) { |
| return valueLhs == valueRhs; |
| } |
| }; |
| } |
| |
| public static ObservableBool isGreaterThan(@NotNull ObservableValue<Integer> valueLhs, int valueRhs) { |
| return new ComparisonExpression(valueLhs, new IntValueProperty(valueRhs)) { |
| @Override |
| protected Boolean compare(int valueLhs, int valueRhs) { |
| return valueLhs > valueRhs; |
| } |
| }; |
| } |
| |
| public static ObservableBool isGreaterThanEqual(@NotNull ObservableValue<Integer> valueLhs, int valueRhs) { |
| return new ComparisonExpression(valueLhs, new IntValueProperty(valueRhs)) { |
| @Override |
| protected Boolean compare(int valueLhs, int valueRhs) { |
| return valueLhs >= valueRhs; |
| } |
| }; |
| } |
| |
| public static ObservableBool isLessThan(@NotNull ObservableValue<Integer> valueLhs, int valueRhs) { |
| return new ComparisonExpression(valueLhs, new IntValueProperty(valueRhs)) { |
| @Override |
| protected Boolean compare(int valueLhs, int valueRhs) { |
| return valueLhs < valueRhs; |
| } |
| }; |
| } |
| |
| public static ObservableBool isLessThanEqual(@NotNull ObservableValue<Integer> valueLhs, int valueRhs) { |
| return new ComparisonExpression(valueLhs, new IntValueProperty(valueRhs)) { |
| @Override |
| protected Boolean compare(int valueLhs, int valueRhs) { |
| return valueLhs <= valueRhs; |
| } |
| }; |
| } |
| |
| protected ComparisonExpression(@NotNull ObservableValue<Integer> valueLhs, @NotNull ObservableValue<Integer> valueRhs) { |
| super(valueLhs, valueRhs); |
| myValueLhs = valueLhs; |
| myValueRhs = valueRhs; |
| } |
| |
| @NotNull |
| @Override |
| public final Boolean get() { |
| return compare(myValueLhs.get(), myValueRhs.get()); |
| } |
| |
| protected abstract Boolean compare(int valueLhs, int valueRhs); |
| } |