public void commentRange(
      int startOffset,
      int endOffset,
      String commentPrefix,
      String commentSuffix,
      Commenter commenter) {
    final CharSequence chars = myDocument.getCharsSequence();
    LogicalPosition caretPosition = myCaret.getLogicalPosition();

    if (startOffset == 0 || chars.charAt(startOffset - 1) == '\n') {
      if (endOffset == myDocument.getTextLength()
          || endOffset > 0 && chars.charAt(endOffset - 1) == '\n') {
        CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(myProject);
        CommonCodeStyleSettings settings =
            CodeStyleSettingsManager.getSettings(myProject).getCommonSettings(myFile.getLanguage());
        String space;
        if (!settings.BLOCK_COMMENT_AT_FIRST_COLUMN) {
          final FileType fileType = myFile.getFileType();
          int line1 = myEditor.offsetToLogicalPosition(startOffset).line;
          int line2 = myEditor.offsetToLogicalPosition(endOffset - 1).line;
          Indent minIndent =
              CommentUtil.getMinLineIndent(myProject, myDocument, line1, line2, fileType);
          if (minIndent == null) {
            minIndent = codeStyleManager.zeroIndent();
          }
          space = codeStyleManager.fillIndent(minIndent, fileType);
        } else {
          space = "";
        }
        final StringBuilder nestingPrefix = new StringBuilder(space).append(commentPrefix);
        if (!commentPrefix.endsWith("\n")) {
          nestingPrefix.append("\n");
        }
        final StringBuilder nestingSuffix = new StringBuilder(space);
        nestingSuffix.append(
            commentSuffix.startsWith("\n") ? commentSuffix.substring(1) : commentSuffix);
        nestingSuffix.append("\n");
        TextRange range =
            insertNestedComments(
                startOffset,
                endOffset,
                nestingPrefix.toString(),
                nestingSuffix.toString(),
                commenter);
        myCaret.setSelection(range.getStartOffset(), range.getEndOffset());
        LogicalPosition pos = new LogicalPosition(caretPosition.line + 1, caretPosition.column);
        myCaret.moveToLogicalPosition(pos);
        return;
      }
    }

    TextRange range =
        insertNestedComments(startOffset, endOffset, commentPrefix, commentSuffix, commenter);
    myCaret.setSelection(range.getStartOffset(), range.getEndOffset());
    LogicalPosition pos =
        new LogicalPosition(caretPosition.line, caretPosition.column + commentPrefix.length());
    myCaret.moveToLogicalPosition(pos);
  }
 private static int getArgumentOffset(int caretOffset, String argument, CharSequence text) {
   int argumentOffset = caretOffset - argument.length();
   if (argumentOffset > 0 && text.charAt(argumentOffset - 1) == ' ') {
     if (argumentOffset - 2 >= 0
         && Character.isJavaIdentifierPart(text.charAt(argumentOffset - 2))) {
       argumentOffset--;
     }
   }
   return argumentOffset;
 }
    private void addTextIfPossible(int endOffset) {
      if (endOffset <= myStartOffset) {
        return;
      }

      for (int i = myStartOffset; i < endOffset; i++) {
        char c = myText.charAt(i);
        switch (c) {
          case '\n':
            myIndentSymbolsToStripAtCurrentLine = myIndentSymbolsToStrip;
            builder.addText(myStartOffset + myOffsetShift, i + myOffsetShift + 1);
            myStartOffset = i + 1;
            break;
            // Intended fall-through.
          case ' ':
          case '\t':
            if (myIndentSymbolsToStripAtCurrentLine > 0) {
              myIndentSymbolsToStripAtCurrentLine--;
              myStartOffset++;
              continue;
            }
          default:
            myIndentSymbolsToStripAtCurrentLine = 0;
        }
      }

      if (myStartOffset < endOffset) {
        builder.addText(myStartOffset + myOffsetShift, endOffset + myOffsetShift);
        myStartOffset = endOffset;
      }
    }
 private int wrapPositionForTabbedTextWithOptimization(
     @NotNull CharSequence text,
     int tabSize,
     int startLineOffset,
     int endLineOffset,
     int targetRangeEndOffset) {
   int width = 0;
   int symbolWidth;
   int result = Integer.MAX_VALUE;
   boolean wrapLine = false;
   for (int i = startLineOffset; i < Math.min(endLineOffset, targetRangeEndOffset); i++) {
     char c = text.charAt(i);
     switch (c) {
       case '\t':
         symbolWidth = tabSize - (width % tabSize);
         break;
       default:
         symbolWidth = 1;
     }
     if (width + symbolWidth + FormatConstants.RESERVED_LINE_WRAP_WIDTH_IN_COLUMNS
             >= mySettings.RIGHT_MARGIN
         && (Math.min(endLineOffset, targetRangeEndOffset) - i)
             >= FormatConstants.RESERVED_LINE_WRAP_WIDTH_IN_COLUMNS) {
       // Remember preferred position.
       result = i - 1;
     }
     if (width + symbolWidth >= mySettings.RIGHT_MARGIN) {
       wrapLine = true;
       break;
     }
     width += symbolWidth;
   }
   return wrapLine ? result : -1;
 }
  private void doIndentCommenting(Commenter commenter) {
    CharSequence chars = myDocument.getCharsSequence();
    final FileType fileType = myFile.getFileType();
    Indent minIndent =
        computeMinIndent(myStartLine, myEndLine, chars, myCodeStyleManager, fileType);

    for (int line = myEndLine; line >= myStartLine; line--) {
      int lineStart = myDocument.getLineStartOffset(line);
      int offset = lineStart;
      final StringBuilder buffer = StringBuilderSpinAllocator.alloc();
      try {
        while (true) {
          String space = buffer.toString();
          Indent indent = myCodeStyleManager.getIndent(space, fileType);
          if (indent.isGreaterThan(minIndent) || indent.equals(minIndent)) break;
          char c = chars.charAt(offset);
          if (c != ' ' && c != '\t') {
            String newSpace = myCodeStyleManager.fillIndent(minIndent, fileType);
            myDocument.replaceString(lineStart, offset, newSpace);
            offset = lineStart + newSpace.length();
            break;
          }
          buffer.append(c);
          offset++;
        }
      } finally {
        StringBuilderSpinAllocator.dispose(buffer);
      }
      commentLine(line, offset, commenter);
    }
  }
Example #6
0
  @SuppressWarnings("ForLoopThatDoesntUseLoopVariable")
  private static void indentPlainTextBlock(
      final Document document, final int startOffset, final int endOffset, final int indentLevel) {
    CharSequence chars = document.getCharsSequence();
    int spaceEnd = CharArrayUtil.shiftForward(chars, startOffset, " \t");
    int line = document.getLineNumber(startOffset);
    if (spaceEnd > endOffset
        || indentLevel <= 0
        || line >= document.getLineCount() - 1
        || chars.charAt(spaceEnd) == '\n') {
      return;
    }

    int linesToAdjustIndent = 0;
    for (int i = line + 1; i < document.getLineCount(); i++) {
      if (document.getLineStartOffset(i) >= endOffset) {
        break;
      }
      linesToAdjustIndent++;
    }

    String indentString = StringUtil.repeatSymbol(' ', indentLevel);

    for (; linesToAdjustIndent > 0; linesToAdjustIndent--) {
      int lineStartOffset = document.getLineStartOffset(++line);
      document.insertString(lineStartOffset, indentString);
    }
  }
 private boolean isLineEmpty(final int line) {
   final CharSequence chars = myDocument.getCharsSequence();
   int start = myDocument.getLineStartOffset(line);
   int end = Math.min(myDocument.getLineEndOffset(line), myDocument.getTextLength() - 1);
   for (int i = start; i <= end; i++) {
     if (!Character.isWhitespace(chars.charAt(i))) return false;
   }
   return true;
 }
 private static int passArgumentBack(CharSequence text, int caretOffset) {
   int i = caretOffset - 1;
   for (; i >= 0; i--) {
     char c = text.charAt(i);
     if (isDelimiter(c)) {
       break;
     }
   }
   return i + 1;
 }
Example #9
0
  private static void indentEachLine(
      Project project, Editor editor, int startOffset, int endOffset) {
    PsiDocumentManager.getInstance(project).commitAllDocuments();
    PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());

    CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project);
    final CharSequence text = editor.getDocument().getCharsSequence();
    if (startOffset > 0
        && endOffset > startOffset + 1
        && text.charAt(endOffset - 1) == '\n'
        && text.charAt(startOffset - 1) == '\n') {
      // There is a possible situation that pasted text ends by a line feed. We don't want to
      // proceed it when a text is
      // pasted at the first line column.
      // Example:
      //    text to paste:
      // 'if (true) {
      // '
      //    source:
      // if (true) {
      //     int i = 1;
      //     int j = 1;
      // }
      //
      //
      // We get the following on paste then:
      // if (true) {
      //     if (true) {
      //         int i = 1;
      //     int j = 1;
      // }
      //
      // We don't want line 'int i = 1;' to be indented here.
      endOffset--;
    }
    try {
      codeStyleManager.adjustLineIndent(file, new TextRange(startOffset, endOffset));
    } catch (IncorrectOperationException e) {
      LOG.error(e);
    }
  }
 private TextRange expandRange(int delOffset1, int delOffset2) {
   CharSequence chars = myDocument.getCharsSequence();
   int offset1 = CharArrayUtil.shiftBackward(chars, delOffset1 - 1, " \t");
   if (offset1 < 0 || chars.charAt(offset1) == '\n' || chars.charAt(offset1) == '\r') {
     int offset2 = CharArrayUtil.shiftForward(chars, delOffset2, " \t");
     if (offset2 == myDocument.getTextLength()
         || chars.charAt(offset2) == '\r'
         || chars.charAt(offset2) == '\n') {
       delOffset1 = offset1 + 1;
       if (offset2 < myDocument.getTextLength()) {
         delOffset2 = offset2 + 1;
         if (chars.charAt(offset2) == '\r'
             && offset2 + 1 < myDocument.getTextLength()
             && chars.charAt(offset2 + 1) == '\n') {
           delOffset2++;
         }
       }
     }
   }
   return new TextRange(delOffset1, delOffset2);
 }
  public Map<TemplateImpl, String> findMatchingTemplates(
      final PsiFile file,
      Editor editor,
      @Nullable Character shortcutChar,
      TemplateSettings templateSettings) {
    final Document document = editor.getDocument();
    CharSequence text = document.getCharsSequence();
    final int caretOffset = editor.getCaretModel().getOffset();

    List<TemplateImpl> candidatesWithoutArgument =
        findMatchingTemplates(text, caretOffset, shortcutChar, templateSettings, false);

    int argumentOffset = passArgumentBack(text, caretOffset);
    String argument = null;
    if (argumentOffset >= 0) {
      argument = text.subSequence(argumentOffset, caretOffset).toString();
      if (argumentOffset > 0 && text.charAt(argumentOffset - 1) == ' ') {
        if (argumentOffset - 2 >= 0
            && Character.isJavaIdentifierPart(text.charAt(argumentOffset - 2))) {
          argumentOffset--;
        }
      }
    }
    List<TemplateImpl> candidatesWithArgument =
        findMatchingTemplates(text, argumentOffset, shortcutChar, templateSettings, true);

    if (candidatesWithArgument.isEmpty() && candidatesWithoutArgument.isEmpty()) {
      return null;
    }

    candidatesWithoutArgument =
        filterApplicableCandidates(file, caretOffset, candidatesWithoutArgument);
    candidatesWithArgument =
        filterApplicableCandidates(file, argumentOffset, candidatesWithArgument);
    Map<TemplateImpl, String> candidate2Argument = new HashMap<TemplateImpl, String>();
    addToMap(candidate2Argument, candidatesWithoutArgument, null);
    addToMap(candidate2Argument, candidatesWithArgument, argument);
    return candidate2Argument;
  }
  private void paintWhitespace(
      Graphics2D g,
      CharSequence text,
      float x,
      int y,
      int start,
      int end,
      EditorImpl.LineWhitespacePaintingStrategy whitespacePaintingStrategy,
      VisualLineFragmentsIterator.Fragment fragment) {
    g.setColor(myEditor.getColorsScheme().getColor(EditorColors.WHITESPACES_COLOR));
    boolean isRtl = fragment.isRtl();
    int baseStartOffset = fragment.getStartOffset();
    int startOffset = isRtl ? baseStartOffset - start : baseStartOffset + start;
    for (int i = start; i < end; i++) {
      int charOffset = isRtl ? baseStartOffset - i - 1 : baseStartOffset + i;
      char c = text.charAt(charOffset);
      if (" \t\u3000".indexOf(c) >= 0
          && whitespacePaintingStrategy.showWhitespaceAtOffset(charOffset)) {
        int startX =
            (int)
                fragment.offsetToX(
                    x, startOffset, isRtl ? baseStartOffset - i : baseStartOffset + i);
        int endX =
            (int)
                fragment.offsetToX(
                    x, startOffset, isRtl ? baseStartOffset - i - 1 : baseStartOffset + i + 1);

        if (c == ' ') {
          g.fillRect((startX + endX) / 2, y, 1, 1);
        } else if (c == '\t') {
          endX -= myView.getPlainSpaceWidth() / 4;
          int height = myView.getCharHeight();
          int halfHeight = height / 2;
          int mid = y - halfHeight;
          int top = y - height;
          UIUtil.drawLine(g, startX, mid, endX, mid);
          UIUtil.drawLine(g, endX, y, endX, top);
          g.fillPolygon(
              new int[] {endX - halfHeight, endX - halfHeight, endX},
              new int[] {y, y - height, y - halfHeight},
              3);
        } else if (c == '\u3000') { // ideographic space
          final int charHeight = myView.getCharHeight();
          g.drawRect(startX + 2, y - charHeight, endX - startX - 4, charHeight);
        }
      }
    }
  }
    private static void removeTrailingSpaces(final Document document, final int startOffset) {
      int endOffset = startOffset;

      final CharSequence charsSequence = document.getCharsSequence();

      for (int i = startOffset; i < charsSequence.length(); i++) {
        final char c = charsSequence.charAt(i);
        endOffset = i;
        if (c == '\n') {
          break;
        }
        if (c != ' ' && c != '\t') {
          return;
        }
      }

      document.deleteString(startOffset, endOffset);
    }
 private int wrapPositionForTabbedTextWithoutOptimization(
     @NotNull Editor editor,
     @NotNull CharSequence text,
     int spaceSize,
     int startLineOffset,
     int endLineOffset,
     int targetRangeEndOffset) {
   int width = 0;
   int x = 0;
   int newX;
   int symbolWidth;
   int result = Integer.MAX_VALUE;
   boolean wrapLine = false;
   for (int i = startLineOffset; i < Math.min(endLineOffset, targetRangeEndOffset); i++) {
     char c = text.charAt(i);
     switch (c) {
       case '\t':
         newX = EditorUtil.nextTabStop(x, editor);
         int diffInPixels = newX - x;
         symbolWidth = diffInPixels / spaceSize;
         if (diffInPixels % spaceSize > 0) {
           symbolWidth++;
         }
         break;
       default:
         newX = x + EditorUtil.charWidth(c, Font.PLAIN, editor);
         symbolWidth = 1;
     }
     if (width + symbolWidth + FormatConstants.RESERVED_LINE_WRAP_WIDTH_IN_COLUMNS
             >= mySettings.RIGHT_MARGIN
         && (Math.min(endLineOffset, targetRangeEndOffset) - i)
             >= FormatConstants.RESERVED_LINE_WRAP_WIDTH_IN_COLUMNS) {
       result = i - 1;
     }
     if (width + symbolWidth >= mySettings.RIGHT_MARGIN) {
       wrapLine = true;
       break;
     }
     x = newX;
     width += symbolWidth;
   }
   return wrapLine ? result : -1;
 }
    public void advance() {
      myCurrentFontFamilyName = myNextFontFamilyName;
      myCurrentStartOffset = myCurrentOffset;
      for (; myCurrentOffset < myEndOffset; myCurrentOffset++) {
        FontInfo fontInfo =
            ComplementaryFontsRegistry.getFontAbleToDisplay(
                myCharSequence.charAt(myCurrentOffset),
                myFontSize,
                myFontStyle,
                myDefaultFontFamilyName);
        String fontFamilyName = fontInfo.getFont().getFamily();

        if (myCurrentFontFamilyName == null) {
          myCurrentFontFamilyName = fontFamilyName;
        } else if (!myCurrentFontFamilyName.equals(fontFamilyName)) {
          myNextFontFamilyName = fontFamilyName;
          break;
        }
      }
    }
  /**
   * Checks if it's worth to try to wrap target line (it's long enough) and tries to calculate
   * preferred wrap position.
   *
   * @param editor target editor
   * @param text text contained at the given editor
   * @param tabSize tab space to use (number of visual columns occupied by a tab)
   * @param spaceSize space width in pixels
   * @param startLineOffset start offset of the text line to process
   * @param endLineOffset end offset of the text line to process
   * @param targetRangeEndOffset target text region's end offset
   * @return negative value if no wrapping should be performed for the target line; preferred wrap
   *     position otherwise
   */
  private int calculatePreferredWrapPosition(
      @NotNull Editor editor,
      @NotNull CharSequence text,
      int tabSize,
      int spaceSize,
      int startLineOffset,
      int endLineOffset,
      int targetRangeEndOffset) {
    boolean hasTabs = false;
    boolean canOptimize = true;
    boolean hasNonSpaceSymbols = false;
    loop:
    for (int i = startLineOffset; i < Math.min(endLineOffset, targetRangeEndOffset); i++) {
      char c = text.charAt(i);
      switch (c) {
        case '\t':
          {
            hasTabs = true;
            if (hasNonSpaceSymbols) {
              canOptimize = false;
              break loop;
            }
          }
        case ' ':
          break;
        default:
          hasNonSpaceSymbols = true;
      }
    }

    if (!hasTabs) {
      return wrapPositionForTextWithoutTabs(startLineOffset, endLineOffset, targetRangeEndOffset);
    } else if (canOptimize) {
      return wrapPositionForTabbedTextWithOptimization(
          text, tabSize, startLineOffset, endLineOffset, targetRangeEndOffset);
    } else {
      return wrapPositionForTabbedTextWithoutOptimization(
          editor, text, spaceSize, startLineOffset, endLineOffset, targetRangeEndOffset);
    }
  }
 private static Pair<Integer /* start offset to use */, Integer /* indent symbols to strip */>
     calcIndentSymbolsToStrip(@NotNull Document document, int startOffset, int endOffset) {
   int startLine = document.getLineNumber(startOffset);
   int endLine = document.getLineNumber(endOffset);
   CharSequence text = document.getCharsSequence();
   int maximumCommonIndent = Integer.MAX_VALUE;
   int firstLineStart = startOffset;
   int firstLineEnd = startOffset;
   for (int line = startLine; line <= endLine; line++) {
     int lineStartOffset = document.getLineStartOffset(line);
     int lineEndOffset = document.getLineEndOffset(line);
     if (line == startLine) {
       firstLineStart = lineStartOffset;
       firstLineEnd = lineEndOffset;
     }
     int nonWsOffset = lineEndOffset;
     for (int i = lineStartOffset;
         i < lineEndOffset && (i - lineStartOffset) < maximumCommonIndent && i < endOffset;
         i++) {
       char c = text.charAt(i);
       if (c != ' ' && c != '\t') {
         nonWsOffset = i;
         break;
       }
     }
     if (nonWsOffset >= lineEndOffset) {
       continue; // Blank line
     }
     int indent = nonWsOffset - lineStartOffset;
     maximumCommonIndent = Math.min(maximumCommonIndent, indent);
     if (maximumCommonIndent == 0) {
       break;
     }
   }
   int startOffsetToUse =
       Math.min(firstLineEnd, Math.max(startOffset, firstLineStart + maximumCommonIndent));
   return Pair.create(startOffsetToUse, maximumCommonIndent);
 }
  public static List<TemplateImpl> findMatchingTemplates(
      CharSequence text,
      int caretOffset,
      @Nullable Character shortcutChar,
      TemplateSettings settings,
      boolean hasArgument) {
    List<TemplateImpl> candidates = Collections.emptyList();
    for (int i = settings.getMaxKeyLength(); i >= 1; i--) {
      int wordStart = caretOffset - i;
      if (wordStart < 0) {
        continue;
      }
      String key = text.subSequence(wordStart, caretOffset).toString();
      if (Character.isJavaIdentifierStart(key.charAt(0))) {
        if (wordStart > 0 && Character.isJavaIdentifierPart(text.charAt(wordStart - 1))) {
          continue;
        }
      }

      candidates = settings.collectMatchingCandidates(key, shortcutChar, hasArgument);
      if (!candidates.isEmpty()) break;
    }
    return candidates;
  }
Example #19
0
        @Override
        @SuppressWarnings({"AssignmentToForLoopParameter"})
        public void paint(
            @NotNull Editor editor, @NotNull RangeHighlighter highlighter, @NotNull Graphics g) {
          int startOffset = highlighter.getStartOffset();
          final Document doc = highlighter.getDocument();
          if (startOffset >= doc.getTextLength()) return;

          final int endOffset = highlighter.getEndOffset();
          final int endLine = doc.getLineNumber(endOffset);

          int off;
          int startLine = doc.getLineNumber(startOffset);
          IndentGuideDescriptor descriptor =
              editor.getIndentsModel().getDescriptor(startLine, endLine);

          final CharSequence chars = doc.getCharsSequence();
          do {
            int start = doc.getLineStartOffset(startLine);
            int end = doc.getLineEndOffset(startLine);
            off = CharArrayUtil.shiftForward(chars, start, end, " \t");
            startLine--;
          } while (startLine > 1 && off < doc.getTextLength() && chars.charAt(off) == '\n');

          final VisualPosition startPosition = editor.offsetToVisualPosition(off);
          int indentColumn = startPosition.column;

          // It's considered that indent guide can cross not only white space but comments, javadocs
          // etc. Hence, there is a possible
          // case that the first indent guide line is, say, single-line comment where comment
          // symbols ('//') are located at the first
          // visual column. We need to calculate correct indent guide column then.
          int lineShift = 1;
          if (indentColumn <= 0 && descriptor != null) {
            indentColumn = descriptor.indentLevel;
            lineShift = 0;
          }
          if (indentColumn <= 0) return;

          final FoldingModel foldingModel = editor.getFoldingModel();
          if (foldingModel.isOffsetCollapsed(off)) return;

          final FoldRegion headerRegion =
              foldingModel.getCollapsedRegionAtOffset(doc.getLineEndOffset(doc.getLineNumber(off)));
          final FoldRegion tailRegion =
              foldingModel.getCollapsedRegionAtOffset(
                  doc.getLineStartOffset(doc.getLineNumber(endOffset)));

          if (tailRegion != null && tailRegion == headerRegion) return;

          final boolean selected;
          final IndentGuideDescriptor guide = editor.getIndentsModel().getCaretIndentGuide();
          if (guide != null) {
            final CaretModel caretModel = editor.getCaretModel();
            final int caretOffset = caretModel.getOffset();
            selected =
                caretOffset >= off
                    && caretOffset < endOffset
                    && caretModel.getLogicalPosition().column == indentColumn;
          } else {
            selected = false;
          }

          Point start =
              editor.visualPositionToXY(
                  new VisualPosition(startPosition.line + lineShift, indentColumn));
          final VisualPosition endPosition = editor.offsetToVisualPosition(endOffset);
          Point end =
              editor.visualPositionToXY(new VisualPosition(endPosition.line, endPosition.column));
          int maxY = end.y;
          if (endPosition.line == editor.offsetToVisualPosition(doc.getTextLength()).line) {
            maxY += editor.getLineHeight();
          }

          Rectangle clip = g.getClipBounds();
          if (clip != null) {
            if (clip.y >= maxY || clip.y + clip.height <= start.y) {
              return;
            }
            maxY = Math.min(maxY, clip.y + clip.height);
          }

          final EditorColorsScheme scheme = editor.getColorsScheme();
          g.setColor(
              selected
                  ? scheme.getColor(EditorColors.SELECTED_INDENT_GUIDE_COLOR)
                  : scheme.getColor(EditorColors.INDENT_GUIDE_COLOR));

          // There is a possible case that indent line intersects soft wrap-introduced text.
          // Example:
          //     this is a long line <soft-wrap>
          // that| is soft-wrapped
          //     |
          //     | <- vertical indent
          //
          // Also it's possible that no additional intersections are added because of soft wrap:
          //     this is a long line <soft-wrap>
          //     |   that is soft-wrapped
          //     |
          //     | <- vertical indent
          // We want to use the following approach then:
          //     1. Show only active indent if it crosses soft wrap-introduced text;
          //     2. Show indent as is if it doesn't intersect with soft wrap-introduced text;
          if (selected) {
            g.drawLine(start.x + 2, start.y, start.x + 2, maxY);
          } else {
            int y = start.y;
            int newY = start.y;
            SoftWrapModel softWrapModel = editor.getSoftWrapModel();
            int lineHeight = editor.getLineHeight();
            for (int i = Math.max(0, startLine + lineShift); i < endLine && newY < maxY; i++) {
              List<? extends SoftWrap> softWraps = softWrapModel.getSoftWrapsForLine(i);
              int logicalLineHeight = softWraps.size() * lineHeight;
              if (i > startLine + lineShift) {
                logicalLineHeight +=
                    lineHeight; // We assume that initial 'y' value points just below the target
                // line.
              }
              if (!softWraps.isEmpty() && softWraps.get(0).getIndentInColumns() < indentColumn) {
                if (y < newY
                    || i
                        > startLine
                            + lineShift) { // There is a possible case that soft wrap is located on
                  // indent start line.
                  g.drawLine(start.x + 2, y, start.x + 2, newY + lineHeight);
                }
                newY += logicalLineHeight;
                y = newY;
              } else {
                newY += logicalLineHeight;
              }

              FoldRegion foldRegion =
                  foldingModel.getCollapsedRegionAtOffset(doc.getLineEndOffset(i));
              if (foldRegion != null && foldRegion.getEndOffset() < doc.getTextLength()) {
                i = doc.getLineNumber(foldRegion.getEndOffset());
              }
            }

            if (y < maxY) {
              g.drawLine(start.x + 2, y, start.x + 2, maxY);
            }
          }
        }
  private void uncommentLine(int line) {
    Commenter commenter = myCommenters[line - myStartLine];
    if (commenter == null) commenter = findCommenter(line);
    if (commenter == null) return;

    final int startOffset = myStartOffsets[line - myStartLine];

    if (commenter instanceof SelfManagingCommenter) {
      final SelfManagingCommenter selfManagingCommenter = (SelfManagingCommenter) commenter;
      selfManagingCommenter.uncommentLine(
          line, startOffset, myDocument, myCommenterStateMap.get(selfManagingCommenter));
      return;
    }

    final int endOffset = myEndOffsets[line - myStartLine];
    if (startOffset == endOffset) {
      return;
    }
    String prefix = commenter.getLineCommentPrefix();
    if (prefix != null) {
      CharSequence chars = myDocument.getCharsSequence();

      if (commenter instanceof CommenterWithLineSuffix) {
        CommenterWithLineSuffix commenterWithLineSuffix = (CommenterWithLineSuffix) commenter;
        String suffix = commenterWithLineSuffix.getLineCommentSuffix();

        int theEnd = endOffset > 0 ? endOffset : myDocument.getLineEndOffset(line);
        while (theEnd > startOffset && Character.isWhitespace(chars.charAt(theEnd - 1))) {
          theEnd--;
        }

        String lineText = myDocument.getText(new TextRange(startOffset, theEnd));
        if (lineText.indexOf(suffix) != -1) {
          int start = startOffset + lineText.indexOf(suffix);
          myDocument.deleteString(start, start + suffix.length());
        }
      }

      boolean skipNewLine = false;
      boolean commented =
          CharArrayUtil.regionMatches(chars, startOffset, prefix)
              || (skipNewLine =
                  prefix.endsWith(" ")
                      && CharArrayUtil.regionMatches(chars, startOffset, prefix.trim() + "\n"));
      assert commented;

      int charsToDelete = skipNewLine ? prefix.trim().length() : prefix.length();
      int theEnd = endOffset > 0 ? endOffset : chars.length();
      // if there's exactly one space after line comment prefix and before the text that follows in
      // the same line, delete the space too
      if (startOffset + charsToDelete < theEnd - 1
          && chars.charAt(startOffset + charsToDelete) == ' ') {
        if (startOffset + charsToDelete == theEnd - 2
            || chars.charAt(startOffset + charsToDelete + 1) != ' ') {
          charsToDelete++;
        }
      }
      myDocument.deleteString(startOffset, startOffset + charsToDelete);
      return;
    }
    String text = myDocument.getCharsSequence().subSequence(startOffset, endOffset).toString();

    prefix = commenter.getBlockCommentPrefix();
    final String suffix = commenter.getBlockCommentSuffix();
    if (prefix == null || suffix == null) {
      return;
    }

    IntArrayList prefixes = new IntArrayList();
    IntArrayList suffixes = new IntArrayList();
    for (int position = 0; position < text.length(); ) {
      int prefixPos = text.indexOf(prefix, position);
      if (prefixPos == -1) {
        break;
      }
      prefixes.add(prefixPos);
      position = prefixPos + prefix.length();
      int suffixPos = text.indexOf(suffix, position);
      if (suffixPos == -1) {
        suffixPos = text.length() - suffix.length();
      }
      suffixes.add(suffixPos);
      position = suffixPos + suffix.length();
    }

    assert prefixes.size() == suffixes.size();

    for (int i = prefixes.size() - 1; i >= 0; i--) {
      uncommentRange(
          startOffset + prefixes.get(i),
          Math.min(startOffset + suffixes.get(i) + suffix.length(), endOffset),
          commenter);
    }
  }
  public void moveCaretRelatively(
      int columnShift,
      int lineShift,
      boolean withSelection,
      boolean blockSelection,
      boolean scrollToCaret) {
    assertIsDispatchThread();
    SelectionModel selectionModel = myEditor.getSelectionModel();
    int selectionStart = selectionModel.getLeadSelectionOffset();
    LogicalPosition blockSelectionStart =
        selectionModel.hasBlockSelection() ? selectionModel.getBlockStart() : getLogicalPosition();
    EditorSettings editorSettings = myEditor.getSettings();
    VisualPosition visualCaret = getVisualPosition();

    int desiredX = myDesiredX;
    if (columnShift == 0) {
      if (myDesiredX < 0) {
        desiredX = myEditor.visualPositionToXY(visualCaret).x;
      }
    } else {
      myDesiredX = desiredX = -1;
    }

    int newLineNumber = visualCaret.line + lineShift;
    int newColumnNumber = visualCaret.column + columnShift;
    if (desiredX >= 0 && !ApplicationManager.getApplication().isUnitTestMode()) {
      newColumnNumber =
          myEditor.xyToVisualPosition(
                  new Point(desiredX, Math.max(0, newLineNumber) * myEditor.getLineHeight()))
              .column;
    }

    Document document = myEditor.getDocument();
    if (!editorSettings.isVirtualSpace()
        && columnShift == 0
        && getLogicalPosition().softWrapLinesOnCurrentLogicalLine <= 0) {
      newColumnNumber = myEditor.getLastColumnNumber();
    } else if (!editorSettings.isVirtualSpace() && lineShift == 0 && columnShift == 1) {
      int lastLine = document.getLineCount() - 1;
      if (lastLine < 0) lastLine = 0;
      if (EditorModificationUtil.calcAfterLineEnd(myEditor) >= 0
          && newLineNumber
              < myEditor.logicalToVisualPosition(new LogicalPosition(lastLine, 0)).line) {
        newColumnNumber = 0;
        newLineNumber++;
      }
    } else if (!editorSettings.isVirtualSpace() && lineShift == 0 && columnShift == -1) {
      if (newColumnNumber < 0 && newLineNumber > 0) {
        newLineNumber--;
        newColumnNumber = EditorUtil.getLastVisualLineColumnNumber(myEditor, newLineNumber);
      }
    }

    if (newColumnNumber < 0) newColumnNumber = 0;

    // There is a possible case that caret is located at the first line and user presses 'Shift+Up'.
    // We want to select all text
    // from the document start to the current caret position then. So, we have a dedicated flag for
    // tracking that.
    boolean selectToDocumentStart = false;
    if (newLineNumber < 0) {
      selectToDocumentStart = true;
      newLineNumber = 0;

      // We want to move caret to the first column if it's already located at the first line and
      // 'Up' is pressed.
      newColumnNumber = 0;
      desiredX = -1;
    }

    VisualPosition pos = new VisualPosition(newLineNumber, newColumnNumber);
    int lastColumnNumber = newColumnNumber;
    if (!editorSettings.isCaretInsideTabs() && !myEditor.getSoftWrapModel().isInsideSoftWrap(pos)) {
      LogicalPosition log =
          myEditor.visualToLogicalPosition(new VisualPosition(newLineNumber, newColumnNumber));
      int offset = myEditor.logicalPositionToOffset(log);
      if (offset >= document.getTextLength()) {
        int lastOffsetColumn = myEditor.offsetToVisualPosition(document.getTextLength()).column;
        // We want to move caret to the last column if if it's located at the last line and 'Down'
        // is pressed.
        newColumnNumber = lastColumnNumber = Math.max(lastOffsetColumn, newColumnNumber);
        desiredX = -1;
      }
      CharSequence text = document.getCharsSequence();
      if (offset >= 0 && offset < document.getTextLength()) {
        if (text.charAt(offset) == '\t' && (columnShift <= 0 || offset == myOffset)) {
          if (columnShift <= 0) {
            newColumnNumber = myEditor.offsetToVisualPosition(offset).column;
          } else {
            SoftWrap softWrap = myEditor.getSoftWrapModel().getSoftWrap(offset + 1);
            // There is a possible case that tabulation symbol is the last document symbol
            // represented on a visual line before
            // soft wrap. We can't just use column from 'offset + 1' because it would point on a
            // next visual line.
            if (softWrap == null) {
              newColumnNumber = myEditor.offsetToVisualPosition(offset + 1).column;
            } else {
              newColumnNumber = EditorUtil.getLastVisualLineColumnNumber(myEditor, newLineNumber);
            }
          }
        }
      }
    }

    pos = new VisualPosition(newLineNumber, newColumnNumber);
    if (columnShift != 0 && lineShift == 0 && myEditor.getSoftWrapModel().isInsideSoftWrap(pos)) {
      LogicalPosition logical = myEditor.visualToLogicalPosition(pos);
      int softWrapOffset = myEditor.logicalPositionToOffset(logical);
      if (columnShift >= 0) {
        moveToOffset(softWrapOffset);
      } else {
        int line = myEditor.offsetToVisualLine(softWrapOffset - 1);
        moveToVisualPosition(
            new VisualPosition(line, EditorUtil.getLastVisualLineColumnNumber(myEditor, line)));
      }
    } else {
      moveToVisualPosition(pos);
      if (!editorSettings.isVirtualSpace() && columnShift == 0) {
        myEditor.setLastColumnNumber(lastColumnNumber);
      }
    }

    if (withSelection) {
      if (blockSelection) {
        selectionModel.setBlockSelection(blockSelectionStart, getLogicalPosition());
      } else {
        if (selectToDocumentStart) {
          selectionModel.setSelection(selectionStart, 0);
        } else if (pos.line >= myEditor.getVisibleLineCount()) {
          if (selectionStart < document.getTextLength()) {
            selectionModel.setSelection(selectionStart, document.getTextLength());
          }
        } else {
          selectionModel.setSelection(selectionStart, getVisualPosition(), getOffset());
        }
      }
    } else {
      selectionModel.removeSelection();
    }

    if (scrollToCaret) {
      myEditor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
    }

    if (desiredX >= 0) {
      myDesiredX = desiredX;
    }

    EditorActionUtil.selectNonexpandableFold(myEditor);
  }
Example #22
0
  private static void indentBlockWithFormatter(
      Project project, Document document, int startOffset, int endOffset, PsiFile file) {

    // Algorithm: the main idea is to process the first line of the pasted block, adjust its indent
    // if necessary, calculate indent
    // adjustment string and apply to each line of the pasted block starting from the second one.
    //
    // We differentiate the following possible states here:
    //   --- pasted block doesn't start new line, i.e. there are non-white space symbols before it
    // at the first line.
    //      Example:
    //         old content [pasted line 1
    //                pasted line 2]
    //      Indent adjustment string is just the first line indent then.
    //
    //   --- pasted block starts with empty line(s)
    //      Example:
    //         old content [
    //            pasted line 1
    //            pasted line 2]
    //      We parse existing indents of the pasted block then, adjust its first non-blank line via
    // formatter and adjust indent
    //      of subsequent pasted lines in order to preserve old indentation.
    //
    //   --- pasted block is located at the new line and starts with white space symbols.
    //       Example:
    //          [   pasted line 1
    //                 pasted line 2]
    //       We parse existing indents of the pasted block then, adjust its first line via formatter
    // and adjust indent of the pasted lines
    //       starting from the second one in order to preserve old indentation.
    //
    //   --- pasted block is located at the new line but doesn't start with white space symbols.
    //       Example:
    //           [pasted line 1
    //         pasted line 2]
    //       We adjust the first line via formatter then and apply first line's indent to all
    // subsequent pasted lines.

    CharSequence chars = document.getCharsSequence();
    final int firstLine = document.getLineNumber(startOffset);
    final int firstLineStart = document.getLineStartOffset(firstLine);

    // There is a possible case that we paste block that ends with new line that is empty or
    // contains only white space symbols.
    // We want to preserve indent for the original document line where paste was performed.
    // Example:
    //   Original:
    //       if (test) {
    //   <caret>    }
    //
    //   Pasting: 'int i = 1;\n'
    //   Expected:
    //       if (test) {
    //           int i = 1;
    //       }
    boolean saveLastLineIndent = false;
    for (int i = endOffset - 1; i >= startOffset; i--) {
      final char c = chars.charAt(i);
      if (c == '\n') {
        saveLastLineIndent = true;
        break;
      }
      if (c != ' ' && c != '\t') {
        break;
      }
    }

    final int lastLine;
    if (saveLastLineIndent) {
      lastLine = document.getLineNumber(endOffset) - 1;
      // Remove white space symbols at the pasted text if any.
      int start = document.getLineStartOffset(lastLine + 1);
      if (start < endOffset) {
        int i = CharArrayUtil.shiftForward(chars, start, " \t");
        if (i > start) {
          i = Math.min(i, endOffset);
          document.deleteString(start, i);
        }
      }

      // Insert white space from the start line of the pasted block.
      int indentToKeepEndOffset =
          Math.min(startOffset, CharArrayUtil.shiftForward(chars, firstLineStart, " \t"));
      if (indentToKeepEndOffset > firstLineStart) {
        document.insertString(start, chars.subSequence(firstLineStart, indentToKeepEndOffset));
      }
    } else {
      lastLine = document.getLineNumber(endOffset);
    }

    final int i = CharArrayUtil.shiftBackward(chars, startOffset - 1, " \t");

    // Handle a situation when pasted block doesn't start a new line.
    if (chars.charAt(startOffset) != '\n' && i > 0 && chars.charAt(i) != '\n') {
      int firstNonWsOffset = CharArrayUtil.shiftForward(chars, firstLineStart, " \t");
      if (firstNonWsOffset > firstLineStart) {
        CharSequence toInsert = chars.subSequence(firstLineStart, firstNonWsOffset);
        for (int line = firstLine + 1; line <= lastLine; line++) {
          document.insertString(document.getLineStartOffset(line), toInsert);
        }
      }
      return;
    }

    // Sync document and PSI for correct formatting processing.
    PsiDocumentManager.getInstance(project).commitAllDocuments();
    if (file == null) {
      return;
    }
    CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project);

    final int j = CharArrayUtil.shiftForward(chars, startOffset, " \t\n");
    if (j >= endOffset) {
      // Pasted text contains white space/line feed symbols only, do nothing.
      return;
    }

    final int anchorLine = document.getLineNumber(j);
    final int anchorLineStart = document.getLineStartOffset(anchorLine);
    codeStyleManager.adjustLineIndent(file, j);

    // Handle situation when pasted block starts with non-white space symbols.
    if (anchorLine == firstLine && j == startOffset) {
      int indentOffset = CharArrayUtil.shiftForward(chars, firstLineStart, " \t");
      if (indentOffset > firstLineStart) {
        CharSequence toInsert = chars.subSequence(firstLineStart, indentOffset);
        for (int line = firstLine + 1; line <= lastLine; line++) {
          document.insertString(document.getLineStartOffset(line), toInsert);
        }
      }
      return;
    }

    // Handle situation when pasted block starts from white space symbols. Assume that the pasted
    // text started at the line start,
    // i.e. correct indentation level is stored at the blocks structure.
    final int firstNonWsOffset = CharArrayUtil.shiftForward(chars, anchorLineStart, " \t");
    final int diff = firstNonWsOffset - j;
    if (diff == 0) {
      return;
    }
    if (diff > 0) {
      CharSequence toInsert = chars.subSequence(anchorLineStart, anchorLineStart + diff);
      for (int line = anchorLine + 1; line <= lastLine; line++) {
        document.insertString(document.getLineStartOffset(line), toInsert);
      }
      return;
    }

    // We've pasted text to the non-first column and exact white space between the line start and
    // caret position on the moment of paste
    // has been removed by formatter during 'adjust line indent'
    // Example:
    //       copied text:
    //                 '   line1
    //                       line2'
    //       after paste:
    //          line start -> '   I   line1
    //                              line2' (I - caret position during 'paste')
    //       formatter removed white space between the line start and caret position, so, current
    // document state is:
    //                        '   line1
    //                              line2'
    if (anchorLine == firstLine && -diff == startOffset - firstLineStart) {
      return;
    }
    if (anchorLine != firstLine || -diff > startOffset - firstLineStart) {
      final int desiredSymbolsToRemove;
      if (anchorLine == firstLine) {
        desiredSymbolsToRemove = -diff - (startOffset - firstLineStart);
      } else {
        desiredSymbolsToRemove = -diff;
      }

      for (int line = anchorLine + 1; line <= lastLine; line++) {
        int currentLineStart = document.getLineStartOffset(line);
        int currentLineIndentOffset = CharArrayUtil.shiftForward(chars, currentLineStart, " \t");
        int symbolsToRemove =
            Math.min(currentLineIndentOffset - currentLineStart, desiredSymbolsToRemove);
        if (symbolsToRemove > 0) {
          document.deleteString(currentLineStart, currentLineStart + symbolsToRemove);
        }
      }
    } else {
      CharSequence toInsert = chars.subSequence(anchorLineStart, diff + startOffset);
      for (int line = anchorLine + 1; line <= lastLine; line++) {
        document.insertString(document.getLineStartOffset(line), toInsert);
      }
    }
  }
  private void executeWriteActionInner(Editor editor, DataContext dataContext, Project project) {
    CodeInsightSettings settings = CodeInsightSettings.getInstance();
    if (project == null) {
      myOriginalHandler.execute(editor, dataContext);
      return;
    }
    final Document document = editor.getDocument();
    final PsiFile file = PsiUtilBase.getPsiFileInEditor(editor, project);

    if (file == null) {
      myOriginalHandler.execute(editor, dataContext);
      return;
    }

    CommandProcessor.getInstance()
        .setCurrentCommandName(CodeInsightBundle.message("command.name.typing"));

    EditorModificationUtil.deleteSelectedText(editor);

    int caretOffset = editor.getCaretModel().getOffset();
    CharSequence text = document.getCharsSequence();
    int length = document.getTextLength();
    if (caretOffset < length && text.charAt(caretOffset) != '\n') {
      int offset1 = CharArrayUtil.shiftBackward(text, caretOffset, " \t");
      if (offset1 < 0 || text.charAt(offset1) == '\n') {
        int offset2 = CharArrayUtil.shiftForward(text, offset1 + 1, " \t");
        boolean isEmptyLine = offset2 >= length || text.charAt(offset2) == '\n';
        if (!isEmptyLine) { // we are in leading spaces of a non-empty line
          myOriginalHandler.execute(editor, dataContext);
          return;
        }
      }
    }

    final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(project);
    documentManager.commitDocument(document);

    boolean forceIndent = false;
    boolean forceSkipIndent = false;
    Ref<Integer> caretOffsetRef = new Ref<Integer>(caretOffset);
    Ref<Integer> caretAdvanceRef = new Ref<Integer>(0);

    final EnterHandlerDelegate[] delegates = Extensions.getExtensions(EnterHandlerDelegate.EP_NAME);
    for (EnterHandlerDelegate delegate : delegates) {
      EnterHandlerDelegate.Result result =
          delegate.preprocessEnter(
              file, editor, caretOffsetRef, caretAdvanceRef, dataContext, myOriginalHandler);
      if (caretOffsetRef.get() > document.getTextLength()) {
        throw new AssertionError("Wrong caret offset change by " + delegate);
      }

      if (result == EnterHandlerDelegate.Result.Stop) {
        return;
      }
      if (result != EnterHandlerDelegate.Result.Continue) {
        if (result == EnterHandlerDelegate.Result.DefaultForceIndent) {
          forceIndent = true;
        } else if (result == EnterHandlerDelegate.Result.DefaultSkipIndent) {
          forceSkipIndent = true;
        }
        break;
      }
    }

    text = document.getCharsSequence(); // update after changes done in preprocessEnter()
    caretOffset = caretOffsetRef.get().intValue();
    boolean isFirstColumn = caretOffset == 0 || text.charAt(caretOffset - 1) == '\n';
    final boolean insertSpace =
        !isFirstColumn
            && !(caretOffset >= text.length()
                || text.charAt(caretOffset) == ' '
                || text.charAt(caretOffset) == '\t');
    editor.getCaretModel().moveToOffset(caretOffset);
    myOriginalHandler.execute(editor, dataContext);
    if (!editor.isInsertMode() || forceSkipIndent) {
      return;
    }

    if (settings.SMART_INDENT_ON_ENTER || forceIndent) {
      caretOffset += 1;
      caretOffset =
          CharArrayUtil.shiftForward(editor.getDocument().getCharsSequence(), caretOffset, " \t");
    } else {
      caretOffset = editor.getCaretModel().getOffset();
    }

    documentManager.commitAllDocuments();
    final DoEnterAction action =
        new DoEnterAction(
            file,
            editor,
            document,
            dataContext,
            caretOffset,
            !insertSpace,
            caretAdvanceRef.get(),
            project);
    action.setForceIndent(forceIndent);
    action.run();
    documentManager.commitDocument(document);
    for (EnterHandlerDelegate delegate : delegates) {
      if (delegate.postProcessEnter(file, editor, dataContext)
          == EnterHandlerDelegate.Result.Stop) {
        break;
      }
    }
    documentManager.commitDocument(document);
  }