Example #1
0
  /** Resizes selected and sibling columns. */
  protected void resize() {
    int position = this.currentX;
    int delta = position - startX;
    Element tr = DOM.getParent(th);
    int left = DOM.getAbsoluteLeft(th);
    int width = getElementWidth(th);

    Element sibling = null;
    int sign = 0;
    int thIndex = DOM.getChildIndex(tr, th);

    if (startX <= left + 2) {
      sign = 1;
      sibling = DOM.getChild(tr, thIndex - 1);
    } else if (startX >= left + width - 2) {
      sign = -1;
      sibling = DOM.getChild(tr, thIndex + 1);
    }

    int thExpectedWidth = width - sign * delta;

    int siblingExpectedWidth;
    int siblingIndex;
    if (sibling != null) {
      siblingExpectedWidth = getElementWidth(sibling) + sign * delta;
      siblingIndex = DOM.getChildIndex(tr, sibling);
    } else {
      siblingExpectedWidth = 0;
      siblingIndex = -1;
    }

    // interrupt immediately
    if (thExpectedWidth < 3 || siblingExpectedWidth < 3 && siblingIndex > -1) {
      th = null;
      return;
    }

    if (siblingIndex > -1) {
      grid.setColumnWidth(thIndex, thExpectedWidth);
      grid.setColumnWidth(siblingIndex, siblingExpectedWidth);
    }

    int thWidthNow = getElementWidth(th);

    int siblingWidthNow;
    if (siblingIndex > -1) siblingWidthNow = getElementWidth(sibling);
    else siblingWidthNow = 0;

    if (thWidthNow > thExpectedWidth)
      grid.setColumnWidth(thIndex, 2 * thExpectedWidth - thWidthNow);
    if (siblingWidthNow > siblingExpectedWidth && siblingIndex > -1)
      grid.setColumnWidth(siblingIndex, 2 * siblingExpectedWidth - siblingWidthNow);
    this.startX = position;
  }
Example #2
0
  /**
   * This method interrupts resiszing.
   *
   * @param event is an event.
   */
  protected void interruptResizing(Event event) {
    int positionX = getPositionX(event);
    int positionY = getPositionY(event);
    Element thead = grid.getTHeadElement();
    int left = DOM.getAbsoluteLeft(thead);
    int top = DOM.getAbsoluteTop(thead);
    int width = getElementWidth(thead);
    int height = getElementHeight(thead);

    if (positionX < left
        || positionX > left + width
        || positionY < top
        || positionY > top + height) {
      th = null;
      timer.cancel();
    }
  }