예제 #1
0
 final void clear() {
   data = null;
   checked = false;
   grayed = false;
   parent.updateScrollBars();
   if ((parent.style & SWT.VIRTUAL) != 0) {
     cached = false;
     parent.redraw();
   }
 }
예제 #2
0
 /**
  * Sets the font that the receiver will use to paint textual information for this item to the font
  * specified by the argument, or to the default font for that kind of control if the argument is
  * null.
  *
  * @param font the new font (or null)
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed
  *     </ul>
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
  *       <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
  *     </ul>
  */
 public void setFont(final Font font) {
   checkWidget();
   if (font != null && font.isDisposed()) {
     error(SWT.ERROR_INVALID_ARGUMENT);
   }
   if (!equals(this.font, font)) {
     this.font = font;
     markCached();
     if (parent.getColumnCount() == 0) {
       parent.updateScrollBars();
     }
     parent.redraw();
   }
 }
예제 #3
0
 /**
  * Sets the receiver's text at a column
  *
  * @param index the column index
  * @param text the new text
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_NULL_ARGUMENT - if the text is null
  *     </ul>
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
  *       <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
  *     </ul>
  */
 public void setText(final int index, final String text) {
   checkWidget();
   if (text == null) {
     SWT.error(SWT.ERROR_NULL_ARGUMENT);
   }
   int count = Math.max(1, parent.getColumnCount());
   if (index >= 0 && index < count) {
     ensureData(index, count);
     if (!text.equals(data[index].text)) {
       data[index].text = text;
       markCached();
       if (parent.getColumnCount() == 0) {
         parent.updateScrollBars();
       }
       parent.redraw();
     }
   }
 }
예제 #4
0
 /**
  * Sets the receiver's image at a column.
  *
  * @param index the column index
  * @param image the new image
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_INVALID_ARGUMENT - if the image has been disposed
  *     </ul>
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
  *       <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
  *     </ul>
  */
 public void setImage(final int index, final Image image) {
   checkWidget();
   if (image != null && image.isDisposed()) {
     error(SWT.ERROR_INVALID_ARGUMENT);
   }
   int count = Math.max(1, parent.getColumnCount());
   if (index >= 0 && index < count) {
     ensureData(index, count);
     if (!equals(data[index].image, image)) {
       parent.updateColumnImageCount(index, data[index].image, image);
       data[index].image = image;
       parent.updateItemImageSize(image);
       markCached();
       if (parent.getColumnCount() == 0) {
         parent.updateScrollBars();
       }
       parent.redraw();
     }
   }
 }