| /* |
| * 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.formatting; |
| |
| import com.intellij.openapi.util.TextRange; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * Defines the formatting model for a file. A formatting model defines how a file is broken |
| * into non-whitespace blocks and different types of whitespace (alignment, indents and wraps) |
| * between them. |
| * <p> |
| * Typically, a plugin does not need to provide a complete FormattingModel implementation - |
| * it can either use a complete implementation provided by |
| * {@link FormattingModelProvider#createFormattingModelForPsiFile(com.intellij.psi.PsiFile, Block, com.intellij.psi.codeStyle.CodeStyleSettings)} |
| * or implement the necessary extra features and delegate the rest to the factory implementation. |
| * |
| * @see FormattingModelBuilder#createModel(com.intellij.psi.PsiElement, com.intellij.psi.codeStyle.CodeStyleSettings) |
| * @see FormattingModelProvider#createFormattingModelForPsiFile(com.intellij.psi.PsiFile, Block, com.intellij.psi.codeStyle.CodeStyleSettings) |
| */ |
| |
| public interface FormattingModel { |
| /** |
| * Returns the root block of the formatting model. The root block corresponds to the |
| * top-level element passed to |
| * {@link FormattingModelBuilder#createModel(com.intellij.psi.PsiElement, com.intellij.psi.codeStyle.CodeStyleSettings)}. |
| * |
| * @return the root block of the model. |
| */ |
| @NotNull |
| Block getRootBlock(); |
| |
| /** |
| * Returns the formatting document model, which allows the formatter to access information about |
| * the document containing the text to be formatted. |
| * |
| * @return the formatting document model. |
| */ |
| @NotNull |
| FormattingDocumentModel getDocumentModel(); |
| |
| /** |
| * Replaces the contents of the specified text range in the document with the specified text |
| * string consisting of whitespace characters. If necessary, other characters may be inserted |
| * in addition to the passed whitespace (for example, \ characters for breaking lines in |
| * languages like Python). |
| * |
| * @param textRange the text range to replace with whitespace. |
| * @param whiteSpace the whitespace to replace with. |
| * @return new white space text range |
| */ |
| TextRange replaceWhiteSpace(TextRange textRange, String whiteSpace); |
| |
| /** |
| * Indents every line except for the first in the specified text range representing a multiline block |
| * by the specified amount. |
| * |
| * @param range the text range to indent. |
| * @param indent the amount by which every line should be indented. |
| * @return the text range covering the block with added indents. |
| */ |
| TextRange shiftIndentInsideRange(TextRange range, int indent); |
| |
| /** |
| * Commits the changes made by the formatter to the document. Called after the formatter |
| * has finished making all changes in a formatting operation. |
| */ |
| void commitChanges(); |
| } |