Beispiel #1
0
  /**
   * Checks if the text has more words to print.
   *
   * @param g graphics reference
   * @return true if the text has more words
   */
  private boolean more(final Graphics g) {
    // no more words found; quit
    if (!text.moreTokens()) return false;

    // calculate word width
    int ww = 0;
    final int p = text.pos();
    while (text.more()) {
      final int ch = text.next();
      // internal special codes...
      if (ch == 0x02) {
        font(bfont);
      } else if (ch == 0x03) {
        font(dfont);
      } else {
        ww += charW(g, ch);
      }
    }
    text.pos(p);

    // jump to new line
    if (x + ww > w) {
      x = off;
      y += fontH;
    }
    wordW = ww;

    // check if word has been found, and word is still visible
    return y < h;
  }
Beispiel #2
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 @Override
 public void paintComponent(final Graphics g) {
   super.paintComponent(g);
   init(g, bar.pos());
   while (more(g)) write(g);
   wordW = 0;
   final int s = text.size();
   if (cursor && s == text.cursor()) drawCursor(g, x);
   if (s == text.error()) drawError(g);
 }
Beispiel #3
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  /**
   * Jumps to a search string.
   *
   * @param dir search direction
   * @param select select hit
   * @return new vertical position, or {@code -1}
   */
  int jump(final SearchDir dir, final boolean select) {
    final int pos = text.jump(dir, select);
    if (pos == -1) return -1;

    final int hh = h;
    h = Integer.MAX_VALUE;
    final Graphics g = getGraphics();
    for (init(g); more(g) && text.pos() < pos; next()) ;
    h = hh;
    return y;
  }
Beispiel #4
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 /**
  * Returns the current vertical cursor position.
  *
  * @return new position
  */
 int cursorY() {
   final int hh = h;
   h = Integer.MAX_VALUE;
   final Graphics g = getGraphics();
   init(g);
   while (more(g) && !text.edited()) next();
   h = hh;
   return y - fontH;
 }
Beispiel #5
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 /**
  * Initializes the renderer.
  *
  * @param g graphics reference
  * @param pos current text position
  */
 private void init(final Graphics g, final int pos) {
   font = dfont;
   color = Color.black;
   syntax.init();
   text.init();
   x = off;
   y = off + fontH - pos - 2;
   if (g != null) g.setFont(font);
 }
Beispiel #6
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 /**
  * Finishes the current token.
  *
  * @return true for new line
  */
 private boolean next() {
   final int ch = text.curr();
   if (ch == TokenBuilder.NLINE || ch == TokenBuilder.HLINE) {
     x = off;
     y += fontH >> (ch == TokenBuilder.NLINE ? 0 : 1);
     return true;
   }
   x += wordW;
   return false;
 }
Beispiel #7
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 /**
  * Returns the cursor coordinates.
  *
  * @return line/column
  */
 int[] pos() {
   final int hh = h;
   h = Integer.MAX_VALUE;
   final Graphics g = getGraphics();
   int col = 1;
   int line = 1;
   init(g);
   boolean more = true;
   while (more(g)) {
     final int p = text.pos();
     while (text.more()) {
       more = text.pos() < text.cursor();
       if (!more) break;
       text.next();
       col++;
     }
     if (!more) break;
     text.pos(p);
     if (next()) {
       line++;
       col = 1;
     }
   }
   h = hh;
   return new int[] {line, col};
 }
Beispiel #8
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 @Override
 public Dimension getPreferredSize() {
   final Graphics g = getGraphics();
   w = Integer.MAX_VALUE;
   h = Integer.MAX_VALUE;
   init(g);
   int max = 0;
   while (more(g)) {
     if (text.curr() == 0x0A) max = Math.max(x, max);
     next();
   }
   return new Dimension(Math.max(x, max) + fwidth[' '], y + fontH);
 }
Beispiel #9
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 /**
  * Sets a new search context.
  *
  * @param sc new search context
  */
 void search(final SearchContext sc) {
   text.search(sc);
 }
Beispiel #10
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  /**
   * Selects the text at the specified position.
   *
   * @param pos current text position
   * @param p mouse position
   * @param finish states if selection is in progress
   */
  void select(final int pos, final Point p, final boolean finish) {
    if (!finish) text.noSelect();
    p.y -= 3;

    final Graphics g = getGraphics();
    init(g, pos);
    if (p.y > y - fontH) {
      int s = text.pos();
      while (true) {
        // end of line
        if (p.x > x && p.y < y - fontH) {
          text.pos(s);
          break;
        }
        // end of text - skip last characters
        if (!more(g)) {
          while (text.more()) text.next();
          break;
        }
        // beginning of line
        if (p.x <= x && p.y < y) break;
        // middle of line
        if (p.x > x && p.x <= x + wordW && p.y > y - fontH && p.y <= y) {
          while (text.more()) {
            final int ww = charW(g, text.curr());
            if (p.x < x + ww) break;
            x += ww;
            text.next();
          }
          break;
        }
        s = text.pos();
        next();
      }

      if (!finish) text.startSelect();
      else text.extendSelect();
      text.setCursor();
    }
    repaint();
  }
Beispiel #11
0
 /** Finishes the selection. */
 void stopSelect() {
   text.checkSelect();
 }
Beispiel #12
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  /**
   * Writes the current string to the graphics reference.
   *
   * @param g graphics reference
   */
  private void write(final Graphics g) {
    if (high) {
      high = false;
    } else {
      color = isEnabled() ? syntax.getColor(text) : Color.gray;
    }

    final int ch = text.curr();
    if (y > 0 && y < h) {
      if (ch == TokenBuilder.MARK) {
        color = GUIConstants.GREEN;
        high = true;
      }

      // mark selected text
      final int cp = text.pos();
      if (text.selectStart()) {
        int xx = x, cw = 0;
        while (!text.inSelect() && text.more()) xx += charW(g, text.next());
        while (text.inSelect() && text.more()) cw += charW(g, text.next());
        g.setColor(GUIConstants.color(3));
        g.fillRect(xx, y - fontH * 4 / 5, cw, fontH);
        text.pos(cp);
      }

      // mark found text
      int xx = x;
      while (text.more() && text.searchStart()) {
        int cw = 0;
        while (!text.inSearch() && text.more()) xx += charW(g, text.next());
        while (text.inSearch() && text.more()) cw += charW(g, text.next());
        g.setColor(GUIConstants.color2A);
        g.fillRect(xx, y - fontH * 4 / 5, cw, fontH);
        xx += cw;
      }
      text.pos(cp);

      if (text.erroneous()) drawError(g);

      // don't write whitespaces
      if (ch > ' ') {
        g.setColor(color);
        String n = text.nextString();
        int ww = w - x;
        if (x + wordW > ww) {
          // shorten string if it cannot be completely shown (saves memory)
          int c = 0;
          for (final int nl = n.length(); c < nl && ww > 0; c++) {
            ww -= charW(g, n.charAt(c));
          }
          n = n.substring(0, c);
        }
        g.drawString(n, x, y);
      } else if (ch <= TokenBuilder.MARK) {
        g.setFont(font);
      }

      // show cursor
      if (cursor && text.edited()) {
        xx = x;
        while (text.more()) {
          if (text.cursor() == text.pos()) {
            drawCursor(g, xx);
            break;
          }
          xx += charW(g, text.next());
        }
        text.pos(cp);
      }
    }
    next();
  }
Beispiel #13
0
 /**
  * Replaces the text.
  *
  * @param rc replace context
  * @return selection offsets
  */
 int[] replace(final ReplaceContext rc) {
   return text.replace(rc);
 }