/**
   * 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);
        }
      }
    }
  }
예제 #2
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  /**
   * Damages the area surrounding the caret to cause it to be repainted in a new location. If
   * paint() is reimplemented, this method should also be reimplemented. This method should update
   * the caret bounds (x, y, width, and height).
   *
   * @param r the current location of the caret
   * @see #paint
   */
  @Override
  protected synchronized void damage(final Rectangle r) {
    if (r == null || fPainting) return;

    x = r.x - 4;
    y = r.y;
    width = 10;
    height = r.height;

    // Don't damage the border area.  We can't paint a partial border, so get the
    // intersection of the caret rectangle and the component less the border, if any.
    final Rectangle caretRect = new Rectangle(x, y, width, height);
    final Border border = getComponent().getBorder();
    if (border != null) {
      final Rectangle alloc = getComponent().getBounds();
      alloc.x = alloc.y = 0;
      final Insets borderInsets = border.getBorderInsets(getComponent());
      alloc.x += borderInsets.left;
      alloc.y += borderInsets.top;
      alloc.width -= borderInsets.left + borderInsets.right;
      alloc.height -= borderInsets.top + borderInsets.bottom;
      Rectangle2D.intersect(caretRect, alloc, caretRect);
    }
    x = caretRect.x;
    y = caretRect.y;
    width = Math.max(caretRect.width, 1);
    height = Math.max(caretRect.height, 1);
    repaint();
  }
  /**
   * Provides a mapping, for a given region, from the document model coordinate space to the view
   * coordinate space. The specified region is created as a union of the first and last character
   * positions.
   *
   * <p>This is implemented to subtract the width of the second character, as this view's <code>
   * modelToView</code> actually returns the width of the character instead of "1" or "0" like the
   * View implementations in <code>javax.swing.text</code>. Thus, if we don't override this method,
   * the <code>View</code> implementation will return one character's width too much for its
   * consumers (implementations of <code>javax.swing.text.Highlighter</code>).
   *
   * @param p0 the position of the first character (&gt;=0)
   * @param b0 The bias of the first character position, toward the previous character or the next
   *     character represented by the offset, in case the position is a boundary of two views;
   *     <code>b0</code> will have one of these values:
   *     <ul>
   *       <li><code>Position.Bias.Forward</code>
   *       <li><code>Position.Bias.Backward</code>
   *     </ul>
   *
   * @param p1 the position of the last character (&gt;=0)
   * @param b1 the bias for the second character position, defined one of the legal values shown
   *     above
   * @param a the area of the view, which encompasses the requested region
   * @return the bounding box which is a union of the region specified by the first and last
   *     character positions
   * @exception BadLocationException if the given position does not represent a valid location in
   *     the associated document
   * @exception IllegalArgumentException if <code>b0</code> or <code>b1</code> are not one of the
   *     legal <code>Position.Bias</code> values listed above
   * @see View#viewToModel
   */
  @Override
  public Shape modelToView(int p0, Position.Bias b0, int p1, Position.Bias b1, Shape a)
      throws BadLocationException {

    Shape s0 = modelToView(p0, a, b0);
    Shape s1;
    if (p1 == getEndOffset()) {
      try {
        s1 = modelToView(p1, a, b1);
      } catch (BadLocationException ble) {
        s1 = null;
      }
      if (s1 == null) {
        // Assume extends left to right.
        Rectangle alloc = (a instanceof Rectangle) ? (Rectangle) a : a.getBounds();
        s1 = new Rectangle(alloc.x + alloc.width - 1, alloc.y, 1, alloc.height);
      }
    } else {
      s1 = modelToView(p1, a, b1);
    }
    Rectangle r0 = s0 instanceof Rectangle ? (Rectangle) s0 : s0.getBounds();
    Rectangle r1 = s1 instanceof Rectangle ? (Rectangle) s1 : s1.getBounds();
    if (r0.y != r1.y) {
      // If it spans lines, force it to be the width of the view.
      Rectangle alloc = (a instanceof Rectangle) ? (Rectangle) a : a.getBounds();
      r0.x = alloc.x;
      r0.width = alloc.width;
    }

    r0.add(r1);
    // The next line is the only difference between this method and
    // View's implementation.  We're subtracting the width of the second
    // character.  This is because this method is used by Highlighter
    // implementations to get the area to "highlight", and if we don't do
    // this, one character too many is highlighted thanks to our
    // modelToView() implementation returning the actual width of the
    // character requested!
    if (p1 > p0) {
      r0.width -= r1.width;
    }

    return r0;
  }
예제 #4
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    /**
     * Provides a mapping from the document model coordinate space to the coordinate space of the
     * view mapped to it.
     *
     * @param pos the position to convert
     * @param a the allocated region to render into
     * @return the bounding box of the given position is returned
     * @exception BadLocationException if the given position does not represent a valid location in
     *     the associated document.
     */
    @Override
    public Shape modelToView(int pos, Shape a, Position.Bias b) throws BadLocationException {

      // System.err.println("--- begin modelToView ---");
      Rectangle alloc = a.getBounds();
      RSyntaxTextArea textArea = (RSyntaxTextArea) getContainer();
      alloc.height = textArea.getLineHeight(); // metrics.getHeight();
      alloc.width = 1;
      int p0 = getStartOffset();
      int p1 = getEndOffset();
      int testP = (b == Position.Bias.Forward) ? pos : Math.max(p0, pos - 1);

      // Get the token list for this line so we don't have to keep
      // recomputing it if this logical line spans multiple physical
      // lines.
      RSyntaxDocument doc = (RSyntaxDocument) getDocument();
      Element map = doc.getDefaultRootElement();
      int line = map.getElementIndex(p0);
      Token tokenList = doc.getTokenListForLine(line);
      float x0 = alloc.x; // 0;

      while (p0 < p1) {
        TokenSubList subList =
            TokenUtils.getSubTokenList(
                tokenList, p0, WrappedSyntaxView.this, textArea, x0, lineCountTempToken);
        x0 = subList != null ? subList.x : x0;
        tokenList = subList != null ? subList.tokenList : null;
        int p = calculateBreakPosition(p0, tokenList, x0);
        if ((pos >= p0) && (testP < p)) { // pos < p)) {
          // it's in this line
          alloc =
              RSyntaxUtilities.getLineWidthUpTo(
                  textArea, s, p0, pos, WrappedSyntaxView.this, alloc, alloc.x);
          // System.err.println("--- end modelToView ---");
          return alloc;
        }
        // if (p == p1 && pos == p1) {
        if (p == p1 - 1 && pos == p1 - 1) {
          // Wants end.
          if (pos > p0) {
            alloc =
                RSyntaxUtilities.getLineWidthUpTo(
                    textArea, s, p0, pos, WrappedSyntaxView.this, alloc, alloc.x);
          }
          // System.err.println("--- end modelToView ---");
          return alloc;
        }

        p0 = (p == p0) ? p1 : p;
        // System.err.println("... ... Incrementing y");
        alloc.y += alloc.height;
      }

      throw new BadLocationException(null, pos);
    }
예제 #5
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  /**
   * Sets the allocation rectangle for a given line's view, but sets the y value to the passed-in
   * value. This should be used instead of {@link #childAllocation(int, Rectangle)} since it allows
   * you to account for hidden lines in collapsed fold regions.
   *
   * @param line
   * @param y
   * @param alloc
   */
  private void childAllocation2(int line, int y, Rectangle alloc) {
    alloc.x += getOffset(X_AXIS, line);
    alloc.y += y;
    alloc.width = getSpan(X_AXIS, line);
    alloc.height = getSpan(Y_AXIS, line);

    // FIXME: This is required due to a bug that I can't track down.  The
    // top margin is being added twice somewhere in wrapped views, so we
    // have to adjust for it here.
    alloc.y -= host.getMargin().top;
  }
예제 #6
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 public Shape modelToView(int pos, Shape a, Position.Bias b) throws BadLocationException {
   int p0 = getStartOffset();
   int p1 = getEndOffset();
   if ((pos >= p0) && (pos <= p1)) {
     Rectangle r = a.getBounds();
     if (pos == p1) {
       r.x += r.width;
     }
     r.width = 0;
     return r;
   }
   throw new BadLocationException(pos + " not in range " + p0 + "," + p1, pos);
 }
  /**
   * 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);
        }
      }
    }
  }
 /**
  * Sets the allocation rectangle for a given line's view, but sets the y value to the passed-in
  * value. This should be used instead of {@link #childAllocation(int, Rectangle)} since it allows
  * you to account for hidden lines in collapsed fold regions.
  *
  * @param line
  * @param y
  * @param alloc
  */
 private void childAllocation2(int line, int y, Rectangle alloc) {
   alloc.x += getOffset(X_AXIS, line);
   alloc.y += y;
   alloc.width = getSpan(X_AXIS, line);
   alloc.height = getSpan(Y_AXIS, line);
 }
  @Override
  protected void paintText(
      Graphics g,
      int tabPlacement,
      Font font,
      FontMetrics metrics,
      int tabIndex,
      String title,
      Rectangle textRect,
      boolean isSelected) {
    g.setFont(font);

    int titleWidth = SwingUtilities.computeStringWidth(metrics, title);

    int preferredWidth = 0;
    if (isOneActionButtonEnabled()) {
      preferredWidth = calculateTabWidth(tabPlacement, tabIndex, metrics) - WIDTHDELTA - 15;

      if (isCloseEnabled()) preferredWidth -= BUTTONSIZE;

      if (isMaxEnabled()) preferredWidth -= BUTTONSIZE;
    } else {
      preferredWidth = titleWidth;
    }

    while (titleWidth > preferredWidth) {
      if (title.endsWith("...")) title = title.substring(0, title.indexOf("...") - 1).concat("...");
      else title = title.substring(0, title.length() - 4).concat("...");

      titleWidth = SwingUtilities.computeStringWidth(metrics, title);
    }

    textRect.width = titleWidth;

    View v = getTextViewForTab(tabIndex);
    if (v != null) {
      // html
      v.paint(g, textRect);
    } else {
      // plain text
      int mnemIndex = tabPane.getDisplayedMnemonicIndexAt(tabIndex);

      if (tabPane.isEnabled() && tabPane.isEnabledAt(tabIndex)) {
        if (isSelected) g.setColor(TAB_SELECTED_FOREGROUND_COLOR);
        else {
          if (this.isTabHighlighted(tabIndex)) {
            g.setColor(TAB_HIGHLIGHT_FOREGROUND_COLOR);
          } else g.setColor(tabPane.getForegroundAt(tabIndex));
        }

        BasicGraphicsUtils.drawString(
            g, title, mnemIndex, textRect.x, textRect.y + metrics.getAscent());
      } else { // tab disabled
        g.setColor(tabPane.getBackgroundAt(tabIndex).brighter());
        BasicGraphicsUtils.drawStringUnderlineCharAt(
            g, title, mnemIndex, textRect.x, textRect.y + metrics.getAscent());

        g.setColor(tabPane.getBackgroundAt(tabIndex).darker());
        BasicGraphicsUtils.drawStringUnderlineCharAt(
            g, title, mnemIndex, textRect.x - 1, textRect.y + metrics.getAscent() - 1);
      }
    }
  }