Beispiel #1
0
  /** Overridden to allow for folded regions. */
  @Override
  protected View getViewAtPoint(int x, int y, Rectangle alloc) {

    int lineCount = getViewCount();
    int curY = alloc.y + getOffset(Y_AXIS, 0); // Always at least 1 line
    host = (RSyntaxTextArea) getContainer();
    FoldManager fm = host.getFoldManager();

    for (int line = 1; line < lineCount; line++) {
      int span = getSpan(Y_AXIS, line - 1);
      if (y < curY + span) {
        childAllocation2(line - 1, curY, alloc);
        return getView(line - 1);
      }
      curY += span;
      Fold fold = fm.getFoldForLine(line - 1);
      if (fold != null && fold.isCollapsed()) {
        line += fold.getCollapsedLineCount();
      }
    }

    // Not found - return last line's view.
    childAllocation2(lineCount - 1, curY, alloc);
    return getView(lineCount - 1);
  }
  /**
   * Paints the word-wrapped text.
   *
   * @param g The graphics context in which to paint.
   * @param a The shape (usually a rectangle) in which to paint.
   */
  public void paint(Graphics g, Shape a) {

    Rectangle alloc = (a instanceof Rectangle) ? (Rectangle) a : a.getBounds();
    tabBase = alloc.x;

    Graphics2D g2d = (Graphics2D) g;
    host = (RSyntaxTextArea) getContainer();
    int ascent = host.getMaxAscent();
    int fontHeight = host.getLineHeight();
    FoldManager fm = host.getFoldManager();
    TokenPainter painter = host.getTokenPainter();
    Element root = getElement();

    // Whether token styles should always be painted, even in selections
    int selStart = host.getSelectionStart();
    int selEnd = host.getSelectionEnd();
    boolean useSelectedTextColor = host.getUseSelectedTextColor();

    int n = getViewCount(); // Number of lines.
    int x = alloc.x + getLeftInset();
    tempRect.y = alloc.y + getTopInset();
    Rectangle clip = g.getClipBounds();
    for (int i = 0; i < n; i++) {

      tempRect.x = x + getOffset(X_AXIS, i);
      // tempRect.y = y + getOffset(Y_AXIS, i);
      tempRect.width = getSpan(X_AXIS, i);
      tempRect.height = getSpan(Y_AXIS, i);
      // System.err.println("For line " + i + ": tempRect==" + tempRect);

      if (tempRect.intersects(clip)) {
        Element lineElement = root.getElement(i);
        int startOffset = lineElement.getStartOffset();
        int endOffset = lineElement.getEndOffset() - 1; // Why always "-1"?
        View view = getView(i);
        if (!useSelectedTextColor
            || selStart == selEnd
            || (startOffset >= selEnd || endOffset < selStart)) {
          drawView(painter, g2d, alloc, view, fontHeight, tempRect.y + ascent);
        } else {
          // System.out.println("Drawing line with selection: " + i);
          drawViewWithSelection(
              painter, g2d, alloc, view, fontHeight, tempRect.y + ascent, selStart, selEnd);
        }
      }

      tempRect.y += tempRect.height;

      Fold possibleFold = fm.getFoldForLine(i);
      if (possibleFold != null && possibleFold.isCollapsed()) {
        i += possibleFold.getCollapsedLineCount();
        // Visible indicator of collapsed lines
        Color c = RSyntaxUtilities.getFoldedLineBottomColor(host);
        if (c != null) {
          g.setColor(c);
          g.drawLine(x, tempRect.y - 1, alloc.width, tempRect.y - 1);
        }
      }
    }
  }
Beispiel #3
0
  /**
   * Fetches the allocation for the given child view to render into.
   *
   * <p>Overridden to account for lines hidden by collapsed folded regions.
   *
   * @param line The index of the child, >= 0 && < getViewCount()
   * @param a The allocation to this view
   * @return The allocation to the child
   */
  public Shape getChildAllocationImpl(int line, Shape a) {

    Rectangle alloc = getInsideAllocation(a);
    host = (RSyntaxTextArea) getContainer();
    FoldManager fm = host.getFoldManager();
    int y = alloc.y;

    // TODO: Make cached getOffset() calls for Y_AXIS valid even for
    // folding, to speed this up!
    for (int i = 0; i < line; i++) {
      y += getSpan(Y_AXIS, i);
      Fold fold = fm.getFoldForLine(i);
      if (fold != null && fold.isCollapsed()) {
        i += fold.getCollapsedLineCount();
      }
    }

    childAllocation2(line, y, alloc);
    return alloc;
  }
  /**
   * Paints the word-wrapped text.
   *
   * @param g The graphics context in which to paint.
   * @param a The shape (usually a rectangle) in which to paint.
   */
  public void paint(Graphics g, Shape a) {

    Rectangle alloc = (a instanceof Rectangle) ? (Rectangle) a : a.getBounds();
    tabBase = alloc.x;

    Graphics2D g2d = (Graphics2D) g;
    host = (RSyntaxTextArea) getContainer();
    int ascent = host.getMaxAscent();
    int fontHeight = host.getLineHeight();
    FoldManager fm = host.getFoldManager();

    int n = getViewCount(); // Number of lines.
    int x = alloc.x + getLeftInset();
    tempRect.y = alloc.y + getTopInset();
    Rectangle clip = g.getClipBounds();
    for (int i = 0; i < n; i++) {
      tempRect.x = x + getOffset(X_AXIS, i);
      // tempRect.y = y + getOffset(Y_AXIS, i);
      tempRect.width = getSpan(X_AXIS, i);
      tempRect.height = getSpan(Y_AXIS, i);
      // System.err.println("For line " + i + ": tempRect==" + tempRect);
      if (tempRect.intersects(clip)) {
        View view = getView(i);
        drawView(g2d, alloc, view, fontHeight, tempRect.y + ascent);
      }
      tempRect.y += tempRect.height;
      Fold possibleFold = fm.getFoldForLine(i);
      if (possibleFold != null && possibleFold.isCollapsed()) {
        i += possibleFold.getCollapsedLineCount();
        // Visible indicator of collapsed lines
        Color c = RSyntaxUtilities.getFoldedLineBottomColor(host);
        if (c != null) {
          g.setColor(c);
          g.drawLine(x, tempRect.y - 1, alloc.width, tempRect.y - 1);
        }
      }
    }
  }