| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * 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.intellij.openapi.diff.impl.settings; |
| |
| import com.intellij.openapi.diff.DiffContent; |
| import com.intellij.openapi.diff.SimpleContent; |
| import com.intellij.openapi.extensions.ExtensionPointName; |
| import com.intellij.openapi.extensions.Extensions; |
| import com.intellij.openapi.fileTypes.StdFileTypes; |
| import org.jetbrains.annotations.NonNls; |
| |
| /** |
| * @author oleg |
| * Implement this interface to enable custom diff preview in Colors & Fonts Settings page |
| */ |
| public abstract class DiffPreviewProvider { |
| public static final ExtensionPointName<DiffPreviewProvider> EP_NAME = ExtensionPointName.create("com.intellij.diffPreviewProvider"); |
| |
| public abstract DiffContent[] createContents(); |
| |
| public static DiffContent[] getContents() { |
| // Assuming that standalone IDE should provide one provider |
| final DiffPreviewProvider[] providers = Extensions.getExtensions(EP_NAME); |
| if (providers.length != 0){ |
| return providers[0].createContents(); |
| } |
| return new DiffContent[]{createContent(LEFT_TEXT), createContent(CENTER_TEXT), createContent(RIGHT_TEXT)}; |
| } |
| |
| private static SimpleContent createContent(String text) { |
| return new SimpleContent(text, StdFileTypes.JAVA); |
| } |
| |
| @NonNls private static final String LEFT_TEXT = "class MyClass {\n" + |
| " int value;\n" + |
| "\n" + |
| " void leftOnly() {}\n" + |
| "\n" + |
| " void foo() {\n" + |
| " // Left changes\n" + |
| " }\n" + |
| "}"; |
| @NonNls private static final String CENTER_TEXT = "class MyClass {\n" + |
| " int value;\n" + |
| "\n" + |
| " void foo() {\n" + |
| " }\n" + |
| "\n" + |
| " void removedFromLeft() {}\n" + |
| "}"; |
| @NonNls private static final String RIGHT_TEXT = "class MyClass {\n" + |
| " long value;\n" + |
| "\n" + |
| " void foo() {\n" + |
| " // Right changes\n" + |
| " }\n" + |
| "\n" + |
| " void removedFromLeft() {}\n" + |
| "}"; |
| } |