Exemplo n.º 1
0
 /**
  * Moves the cursor down. The current column position is remembered in {@link #lastCol} and, if
  * possible, restored.
  *
  * @param l number of lines to move cursor
  * @param mark mark flag
  */
 private void down(final int l, final boolean mark) {
   if (!mark) text.noMark();
   final int x = text.bol(mark);
   if (lastCol == -1) lastCol = x;
   for (int i = 0; i < l; ++i) {
     text.eol(mark);
     text.next(mark);
   }
   text.forward(lastCol, mark);
   if (text.pos() == text.size()) lastCol = -1;
 }
Exemplo n.º 2
0
  /**
   * Copies the selected text to the clipboard.
   *
   * @return true if text was copied
   */
  final boolean copy() {
    final String txt = text.copy();
    if (txt.isEmpty()) {
      text.noMark();
      return false;
    }

    // copy selection to clipboard
    final Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard();
    clip.setContents(new StringSelection(txt), null);
    return true;
  }
Exemplo n.º 3
0
 /**
  * Moves the cursor up.
  *
  * @param l number of lines to move cursor
  * @param mark mark flag
  */
 private void up(final int l, final boolean mark) {
   if (!mark) text.noMark();
   final int x = text.bol(mark);
   if (lastCol == -1) lastCol = x;
   if (text.pos() == 0) {
     lastCol = -1;
     return;
   }
   for (int i = 0; i < l; ++i) {
     text.prev(mark);
     text.bol(mark);
   }
   text.forward(lastCol, mark);
 }
Exemplo n.º 4
0
  /**
   * 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.noMark();
    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.startMark();
      else text.endMark();
      text.setCaret();
    }
    repaint();
  }
Exemplo n.º 5
0
  @Override
  public void keyPressed(final KeyEvent e) {
    if (modifier(e)) return;

    // operations that change the focus are put first..
    if (PREVTAB.is(e)) {
      transferFocusBackward();
      return;
    }
    if (NEXTTAB.is(e)) {
      transferFocus();
      return;
    }
    if (FIND.is(e)) {
      if (find != null) find.requestFocusInWindow();
      return;
    }

    // re-animate cursor
    cursor(true);

    // operations without cursor movement...
    final int fh = rend.fontH();
    if (SCROLLDOWN.is(e)) {
      scroll.pos(scroll.pos() + fh);
      return;
    }
    if (SCROLLUP.is(e)) {
      scroll.pos(scroll.pos() - fh);
      return;
    }
    if (COPY1.is(e) || COPY2.is(e)) {
      copy();
      return;
    }

    // set cursor position and reset last column
    text.pos(text.cursor());
    if (!PREVLINE.is(e) && !NEXTLINE.is(e)) lastCol = -1;

    if (FINDNEXT.is(e) || FINDNEXT2.is(e)) {
      scroll(rend.find(true, true));
      return;
    }
    if (FINDPREV.is(e) || FINDPREV2.is(e)) {
      scroll(rend.find(false, true));
      return;
    }
    if (SELECTALL.is(e)) {
      selectAll();
      return;
    }

    // necessary on Macs as the shift button is pressed for REDO
    final boolean marking =
        e.isShiftDown()
            && !DELNEXT.is(e)
            && !DELPREV.is(e)
            && !PASTE2.is(e)
            && !COMMENT.is(e)
            && !DELLINE.is(e)
            && !REDOSTEP.is(e);
    final boolean nomark = !text.marked();
    if (marking && nomark) text.startMark();
    boolean down = true;
    boolean consumed = true;

    // operations that consider the last text mark..
    final byte[] txt = text.text();
    if (NEXTWORD.is(e)) {
      text.nextToken(marking);
    } else if (PREVWORD.is(e)) {
      text.prevToken(marking);
      down = false;
    } else if (TEXTSTART.is(e)) {
      if (!marking) text.noMark();
      text.pos(0);
      down = false;
    } else if (TEXTEND.is(e)) {
      if (!marking) text.noMark();
      text.pos(text.size());
    } else if (LINESTART.is(e)) {
      text.bol(marking);
      down = false;
    } else if (LINEEND.is(e)) {
      text.eol(marking);
    } else if (NEXTPAGE.is(e)) {
      down(getHeight() / fh, marking);
    } else if (PREVPAGE.is(e)) {
      up(getHeight() / fh, marking);
      down = false;
    } else if (NEXT.is(e)) {
      text.next(marking);
    } else if (PREV.is(e)) {
      text.prev(marking);
      down = false;
    } else if (PREVLINE.is(e)) {
      up(1, marking);
      down = false;
    } else if (NEXTLINE.is(e)) {
      down(1, marking);
    } else if (FINDERROR.is(e)) {
      final int p = text.error();
      if (p != -1) setCaret(p);
    } else {
      consumed = false;
    }

    if (marking) {
      // refresh scroll position
      text.endMark();
      text.checkMark();
    } else if (undo != null) {
      // edit operations...
      if (CUT1.is(e) || CUT2.is(e)) {
        cut();
      } else if (PASTE1.is(e) || PASTE2.is(e)) {
        paste();
      } else if (UNDOSTEP.is(e)) {
        undo();
      } else if (REDOSTEP.is(e)) {
        redo();
      } else if (COMMENT.is(e)) {
        text.comment(rend.getSyntax());
      } else if (DELLINE.is(e)) {
        text.deleteLine();
      } else if (DELLINEEND.is(e) || DELNEXTWORD.is(e) || DELNEXT.is(e)) {
        if (nomark) {
          if (text.pos() == text.size()) return;
          text.startMark();
          if (DELNEXTWORD.is(e)) {
            text.nextToken(true);
          } else if (DELLINEEND.is(e)) {
            text.eol(true);
          } else {
            text.next(true);
          }
          text.endMark();
        }
        undo.cursor(text.cursor());
        text.delete();
      } else if (DELLINESTART.is(e) || DELPREVWORD.is(e) || DELPREV.is(e)) {
        if (nomark) {
          if (text.pos() == 0) return;
          text.startMark();
          if (DELPREVWORD.is(e)) {
            text.prevToken(true);
          } else if (DELLINESTART.is(e)) {
            text.bol(true);
          } else {
            text.prev();
          }
          text.endMark();
        }
        undo.cursor(text.cursor());
        text.delete();
        down = false;
      } else {
        consumed = false;
      }
    }
    if (consumed) e.consume();

    text.setCaret();
    if (txt != text.text()) rend.calc();
    showCursor(down ? 2 : 0);
  }