Java Document.getLineStartOffset方法代码示例

import com.intellij.openapi.editor.Document; //导入方法依赖的package包/类
public void generateGherkinRunIcons(Document rootDocument, Editor rootEditor) {
    for (int i = 0; i < rootDocument.getLineCount(); i++) {
        int startOffset = rootDocument.getLineStartOffset(i);
        int endOffset = rootDocument.getLineEndOffset(i);

        String lineText = rootDocument.getText(new TextRange(startOffset, endOffset)).trim();

        Icon icon;
        if (lineText.matches(SCENARIO_REGEX)) {
            icon = GherkinIconRenderer.SCENARIO_ICON;
        } else if (lineText.matches(FEATURE_REGEX)) {
            icon = GherkinIconRenderer.FEATURE_ICON;
        } else {
            // System.out.println();
             continue;
        }
        GherkinIconRenderer gherkinIconRenderer = new GherkinIconRenderer(rootEditor.getProject(), fileName);
        gherkinIconRenderer.setLine(i);
        gherkinIconRenderer.setIcon(icon);

        RangeHighlighter rangeHighlighter = createRangeHighlighter(rootDocument, rootEditor, i, i, new TextAttributes());
        rangeHighlighter.setGutterIconRenderer(gherkinIconRenderer);
    }
}
 

import com.intellij.openapi.editor.Document; //导入方法依赖的package包/类
@Override
public Result postProcessEnter(
    @NotNull PsiFile file, @NotNull Editor editor, @NotNull DataContext dataContext) {
  if (file.getFileType() != SoyFileType.INSTANCE) {
    return Result.Continue;
  }

  int caretOffset = editor.getCaretModel().getOffset();
  PsiElement element = file.findElementAt(caretOffset);
  Document document = editor.getDocument();

  int lineNumber = document.getLineNumber(caretOffset) - 1;
  int lineStartOffset = document.getLineStartOffset(lineNumber);
  String lineTextBeforeCaret = document.getText(new TextRange(lineStartOffset, caretOffset));

  if (element instanceof PsiComment && element.getTextOffset() < caretOffset) {
    handleEnterInComment(element, file, editor);
  } else if (lineTextBeforeCaret.startsWith("/*")) {
    insertText(file, editor, " * \n ", 3);
  }

  return Result.Continue;
}
 

import com.intellij.openapi.editor.Document; //导入方法依赖的package包/类
private static void saveIndent(AnswerPlaceholder placeholder, CCState state, boolean visible) {
  Document document = state.getEditor().getDocument();
  int offset = placeholder.getOffset();
  int lineNumber = document.getLineNumber(offset);
  int nonSpaceCharOffset = DocumentUtil.getFirstNonSpaceCharOffset(document, lineNumber);
  int newOffset = offset;
  int endOffset = offset + placeholder.getRealLength();
  if (!visible && nonSpaceCharOffset == offset) {
    newOffset = document.getLineStartOffset(lineNumber);
  }
  if (visible) {
    newOffset = DocumentUtil.getFirstNonSpaceCharOffset(document, offset, endOffset);
  }
  placeholder.setOffset(newOffset);
  int delta = offset - newOffset;
  placeholder.setPossibleAnswer(document.getText(TextRange.create(newOffset, newOffset + delta + placeholder.getRealLength())));
  String oldTaskText = placeholder.getTaskText();
  if (delta >= 0) {
    placeholder.setTaskText(StringUtil.repeat(" ", delta) + oldTaskText);
  }
  else {
    String newTaskText = oldTaskText.substring(Math.abs(delta));
    placeholder.setTaskText(newTaskText);
  }
}
 

import com.intellij.openapi.editor.Document; //导入方法依赖的package包/类
private RangeHighlighter createRangeHighlighter(Document document, Editor editor, int fromLine, int toLine, TextAttributes attributes) {
    int lineStartOffset = document.getLineStartOffset(Math.max(0, fromLine));
    int lineEndOffset = document.getLineEndOffset(Math.max(0, toLine));

    return editor.getMarkupModel().addRangeHighlighter(
            lineStartOffset, lineEndOffset, 3333, attributes, HighlighterTargetArea.LINES_IN_RANGE
    );
}
 

import com.intellij.openapi.editor.Document; //导入方法依赖的package包/类
private String getCurrentWords(Editor editor) {
    Document document = editor.getDocument();
    CaretModel caretModel = editor.getCaretModel();
    int caretOffset = caretModel.getOffset();
    int lineNum = document.getLineNumber(caretOffset);
    int lineStartOffset = document.getLineStartOffset(lineNum);
    int lineEndOffset = document.getLineEndOffset(lineNum);
    String lineContent = document.getText(new TextRange(lineStartOffset, lineEndOffset));
    char[] chars = lineContent.toCharArray();
    int start = 0, end = 0, cursor = caretOffset - lineStartOffset;

    if (!Character.isLetter(chars[cursor])) {
        return null;
    }

    for (int ptr = cursor; ptr >= 0; ptr--) {
        if (!Character.isLetter(chars[ptr])) {
            start = ptr + 1;
            break;
        }
    }

    int lastLetter = 0;
    for (int ptr = cursor; ptr < lineEndOffset - lineStartOffset; ptr++) {
        lastLetter = ptr;
        if (!Character.isLetter(chars[ptr])) {
            end = ptr;
            break;
        }
    }
    if (end == 0) {
        end = lastLetter + 1;
    }

    return new String(chars, start, end - start);
}
 

import com.intellij.openapi.editor.Document; //导入方法依赖的package包/类
public static void addInitialState(Document document, Element placeholder) throws StudyUnrecognizedFormatException {
  Element initialState = getChildWithName(placeholder, INITIAL_STATE).getChild(MY_INITIAL_STATE);
  int initialLine = getAsInt(initialState, MY_LINE);
  int initialStart = getAsInt(initialState, MY_START);
  int initialOffset = document.getLineStartOffset(initialLine) + initialStart;
  addChildWithName(initialState, OFFSET, initialOffset);
  renameElement(getChildWithName(initialState, MY_LENGTH), LENGTH);
}
 

import com.intellij.openapi.editor.Document; //导入方法依赖的package包/类
@Override
public void loadState(Element state) {
  try {
    Element courseElement = getChildWithName(state, COURSE).getChild(COURSE_TITLED);
    for (Element lesson : getChildList(courseElement, LESSONS, true)) {
      int lessonIndex = getAsInt(lesson, INDEX);
      for (Element task : getChildList(lesson, TASK_LIST, true)) {
        int taskIndex = getAsInt(task, INDEX);
        Map<String, Element> taskFiles = getChildMap(task, TASK_FILES, true);
        for (Map.Entry<String, Element> entry : taskFiles.entrySet()) {
          Element taskFileElement = entry.getValue();
          String name = entry.getKey();
          String answerName = FileUtil.getNameWithoutExtension(name) + CCUtils.ANSWER_EXTENSION_DOTTED + FileUtilRt.getExtension(name);
          Document document = StudyUtils.getDocument(myProject.getBasePath(), lessonIndex, taskIndex, answerName);
          if (document == null) {
            document = StudyUtils.getDocument(myProject.getBasePath(), lessonIndex, taskIndex, name);
            if (document == null) {
              continue;
            }
          }
          for (Element placeholder : getChildList(taskFileElement, ANSWER_PLACEHOLDERS, true)) {
            Element lineElement = getChildWithName(placeholder, LINE, true);
            int line = lineElement != null ? Integer.valueOf(lineElement.getAttributeValue(VALUE)) : 0;
            Element startElement = getChildWithName(placeholder, START, true);
            int start = startElement != null ? Integer.valueOf(startElement.getAttributeValue(VALUE)) : 0;
            int offset = document.getLineStartOffset(line) + start;
            addChildWithName(placeholder, OFFSET, offset);
            addChildWithName(placeholder, "useLength", "false");
          }
        }
      }
    }
    XmlSerializer.deserializeInto(this, state);
  } catch (StudyUnrecognizedFormatException e) {
    LOG.error(e);
  }
}
 

import com.intellij.openapi.editor.Document; //导入方法依赖的package包/类
public String getCurrentWords(Editor editor) {
    Document document = editor.getDocument();
    CaretModel caretModel = editor.getCaretModel();
    int caretOffset = caretModel.getOffset();
    int lineNum = document.getLineNumber(caretOffset);
    int lineStartOffset = document.getLineStartOffset(lineNum);
    int lineEndOffset = document.getLineEndOffset(lineNum);
    String lineContent = document.getText(new TextRange(lineStartOffset, lineEndOffset));
    char[] chars = lineContent.toCharArray();
    int start = 0, end = 0, cursor = caretOffset - lineStartOffset;

    if (!Character.isLetter(chars[cursor])) {
        Logger.warn("Caret not in a word");
        return null;
    }

    for (int ptr = cursor; ptr >= 0; ptr--) {
        if (!Character.isLetter(chars[ptr])) {
            start = ptr + 1;
            break;
        }
    }

    int lastLetter = 0;
    for (int ptr = cursor; ptr < lineEndOffset - lineStartOffset; ptr++) {
        lastLetter = ptr;
        if (!Character.isLetter(chars[ptr])) {
            end = ptr;
            break;
        }
    }
    if (end == 0) {
        end = lastLetter + 1;
    }

    String ret = new String(chars, start, end-start);
    Logger.info("Selected words: " + ret);
    return ret;
}
 

import com.intellij.openapi.editor.Document; //导入方法依赖的package包/类
public static void addOffset(Document document, Element placeholder) throws StudyUnrecognizedFormatException {
  int line = getAsInt(placeholder, LINE);
  int start = getAsInt(placeholder, START);
  int offset = document.getLineStartOffset(line) + start;
  addChildWithName(placeholder, OFFSET, offset);
}