Java Code Examples for com.intellij.openapi.util.text.StringUtil#first()

public static String extractHighlightedText(@Nonnull CommonProblemDescriptor descriptor, PsiElement psiElement) {
  if (psiElement == null || !psiElement.isValid()) return "";
  String ref = psiElement.getText();
  if (descriptor instanceof ProblemDescriptorBase) {
    TextRange textRange = ((ProblemDescriptorBase)descriptor).getTextRange();
    final TextRange elementRange = psiElement.getTextRange();
    if (textRange != null && elementRange != null) {
      textRange = textRange.shiftRight(-elementRange.getStartOffset());
      if (textRange.getStartOffset() >= 0 && textRange.getEndOffset() <= elementRange.getLength()) {
        ref = textRange.substring(ref);
      }
    }
  }
  ref = StringUtil.replaceChar(ref, '\n', ' ').trim();
  ref = StringUtil.first(ref, 100, true);
  return ref;
}
 

@Nonnull
private Pair<String, String> getUndoOrRedoActionNameAndDescription(FileEditor editor, boolean undo) {
  String desc = isUndoOrRedoAvailable(editor, undo) ? doFormatAvailableUndoRedoAction(editor, undo) : null;
  if (desc == null) desc = "";
  String shortActionName = StringUtil.first(desc, 30, true);

  if (desc.isEmpty()) {
    desc = undo
           ? ActionsBundle.message("action.undo.description.empty")
           : ActionsBundle.message("action.redo.description.empty");
  }

  return Pair.create((undo ? ActionsBundle.message("action.undo.text", shortActionName)
                           : ActionsBundle.message("action.redo.text", shortActionName)).trim(),
                     (undo ? ActionsBundle.message("action.undo.description", desc)
                           : ActionsBundle.message("action.redo.description", desc)).trim());
}
 

@Override
protected void customizeCellRenderer(JList list, Object value, int index, boolean selected, boolean hasFocus) {
  setIcon(myListEntryIcon);
  if (myUseIdeaEditor) {
    int max = list.getModel().getSize();
    String indexString = String.valueOf(index + 1);
    int count = String.valueOf(max).length() - indexString.length();
    char[] spaces = new char[count];
    Arrays.fill(spaces, ' ');
    String prefix = indexString + new String(spaces) + "  ";
    append(prefix, SimpleTextAttributes.GRAYED_ATTRIBUTES);
  }
  else if (UIUtil.isUnderGTKLookAndFeel()) {
    // Fix GTK background
    Color background = selected ? UIUtil.getListSelectionBackground() : UIUtil.getListBackground();
    UIUtil.changeBackGround(this, background);
  }
  String text = ((Item)value).shortText;

  FontMetrics metrics = list.getFontMetrics(list.getFont());
  int charWidth = metrics.charWidth('m');
  int maxLength = list.getParent().getParent().getWidth() * 3 / charWidth / 2;
  text = StringUtil.first(text, maxLength, true); // do not paint long strings
  append(text, SimpleTextAttributes.REGULAR_ATTRIBUTES);
}
 

static void log(ProgressIndicator progressIndicator, TextEditorHighlightingPass pass, @NonNls @Nonnull Object... info) {
  if (LOG.isDebugEnabled()) {
    CharSequence docText = pass == null || pass.getDocument() == null ? "" : ": '" + StringUtil.first(pass.getDocument().getCharsSequence(), 10, true) + "'";
    synchronized (PassExecutorService.class) {
      String infos = StringUtil.join(info, Functions.TO_STRING(), " ");
      String message = StringUtil.repeatSymbol(' ', getThreadNum() * 4) +
                       " " +
                       pass +
                       " " +
                       infos +
                       "; progress=" +
                       (progressIndicator == null ? null : progressIndicator.hashCode()) +
                       " " +
                       (progressIndicator == null ? "?" : progressIndicator.isCanceled() ? "X" : "V") +
                       docText;
      LOG.debug(message);
      //System.out.println(message);
    }
  }
}
 

private static String cutName(String name, String shortcutText, JList list, JPanel panel, SimpleColoredComponent nameComponent) {
  if (!list.isShowing() || list.getWidth() <= 0) {
    return StringUtil.first(name, 60, true); //fallback to previous behaviour
  }
  int freeSpace = calcFreeSpace(list, panel, nameComponent, shortcutText);

  if (freeSpace <= 0) {
    return name;
  }

  FontMetrics fm = nameComponent.getFontMetrics(nameComponent.getFont());
  int strWidth = fm.stringWidth(name);
  if (strWidth <= freeSpace) {
    return name;
  }

  int cutSymbolIndex = (int)((((double)freeSpace - fm.stringWidth("...")) / strWidth) * name.length());
  cutSymbolIndex = Integer.max(1, cutSymbolIndex);
  name = name.substring(0, cutSymbolIndex);
  while (fm.stringWidth(name + "...") > freeSpace && name.length() > 1) {
    name = name.substring(0, name.length() - 1);
  }

  return name.trim() + "...";
}
 

private PsiBuilderImpl(@Nullable Project project,
                       @Nullable PsiFile containingFile,
                       @Nonnull LanguageVersion languageVersion,
                       @Nonnull ParserDefinition parserDefinition,
                       @Nonnull Lexer lexer,
                       @Nullable CharTable charTable,
                       @Nonnull CharSequence text,
                       @Nullable ASTNode originalTree,
                       @Nullable CharSequence lastCommittedText,
                       @Nullable MyTreeStructure parentLightTree,
                       @Nullable Object parentCachingNode) {
  myProject = project;
  myFile = containingFile;
  myLanguageVersion = languageVersion;
  myText = text;
  myTextArray = CharArrayUtil.fromSequenceWithoutCopying(text);
  myLexer = lexer;

  myWhitespaces = parserDefinition.getWhitespaceTokens(languageVersion);
  myComments = parserDefinition.getCommentTokens(languageVersion);
  myCharTable = charTable;
  myOriginalTree = originalTree;
  myLastCommittedText = lastCommittedText;
  if ((originalTree == null) != (lastCommittedText == null)) {
    throw new IllegalArgumentException("originalTree and lastCommittedText must be null/notnull together but got: originalTree=" +
                                       originalTree +
                                       "; lastCommittedText=" +
                                       (lastCommittedText == null ? null : "'" + StringUtil.first(lastCommittedText, 80, true) + "'"));
  }
  myParentLightTree = parentLightTree;
  myOffset = parentCachingNode instanceof LazyParseableToken ? ((LazyParseableToken)parentCachingNode).getStartOffset() : 0;

  cacheLexemes(parentCachingNode);
}
 

@NonNls
@Override
public String toString() {
  Document document = getDocument();
  String indicatorInfo = isCanceled() ? " (Canceled: " + ((UserDataHolder)indicator).getUserData(CANCEL_REASON) + ")" : "";
  String removedInfo = dead ? " (dead)" : "";
  String reasonInfo = " task reason: " +
                      StringUtil.first(String.valueOf(reason), 180, true) +
                      (isStillValid() ? "" : "; changed: old seq=" + modificationSequence + ", new seq=" + ((DocumentEx)document).getModificationSequence());
  String contextInfo = " Context: " + myCreationContext;
  return System.identityHashCode(this) + "; " + indicatorInfo + removedInfo + contextInfo + reasonInfo;
}
 

@Nullable
public static PsiFile parseHeader(@Nonnull Project project, @Nonnull Language language, @Nonnull String text) {
  LanguageFileType fileType = language.getAssociatedFileType();
  CharSequence fileSnippet = StringUtil.first(text, 10 * 1024, false);
  PsiFileFactory fileFactory = PsiFileFactory.getInstance(project);
  return fileFactory.createFileFromText(PathUtil.makeFileName("a", fileType == null ? "" : fileType.getDefaultExtension()), language, fileSnippet);
}