Exemple #1
0
 /**
  * Sets the receiver's text. The string may include the mnemonic character.
  *
  * <p>Mnemonics are indicated by an '&amp;' that causes the next character to be the mnemonic.
  * When the user presses a key sequence that matches the mnemonic, a selection event occurs. On
  * most platforms, the mnemonic appears underlined but may be emphasised in a platform specific
  * manner. The mnemonic indicator character '&amp;' can be escaped by doubling it in the string,
  * causing a single '&amp;' to be displayed.
  *
  * @param string 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(String string) {
   checkWidget();
   if (string == null) error(SWT.ERROR_NULL_ARGUMENT);
   if ((style & SWT.SEPARATOR) != 0) return;
   if (string.equals(this.text)) return;
   super.setText(string);
   if (labelHandle == 0) return;
   char[] chars = fixMnemonic(string);
   byte[] buffer = Converter.wcsToMbcs(null, chars, true);
   OS.gtk_label_set_text_with_mnemonic(labelHandle, buffer);
   if ((style & SWT.DROP_DOWN) != 0 && OS.GTK_VERSION < OS.VERSION(2, 6, 0)) {
     if (string.length() != 0) {
       OS.gtk_widget_show(labelHandle);
     } else {
       OS.gtk_widget_hide(labelHandle);
     }
   }
   /*
    * If Text/Image of a tool-item changes, then it is
    * required to reset the proxy menu. Otherwise, the
    * old menuItem appears in the overflow menu.
    */
   if ((style & SWT.DROP_DOWN) != 0) {
     proxyMenuItem = 0;
     proxyMenuItem = OS.gtk_tool_item_retrieve_proxy_menu_item(handle);
     OS.g_signal_connect(
         proxyMenuItem, OS.activate, ToolBar.menuItemSelectedFunc.getAddress(), handle);
   }
   parent.relayout();
 }
Exemple #2
0
 public void setImage(Image image) {
   checkWidget();
   if ((style & SWT.SEPARATOR) != 0) return;
   super.setImage(image);
   if (image != null) {
     ImageList imageList = parent.imageList;
     if (imageList == null) imageList = parent.imageList = new ImageList();
     int imageIndex = imageList.indexOf(image);
     if (imageIndex == -1) {
       imageIndex = imageList.add(image);
     } else {
       imageList.put(imageIndex, image);
     }
     long /*int*/ pixbuf = imageList.getPixbuf(imageIndex);
     OS.gtk_image_set_from_pixbuf(imageHandle, pixbuf);
   } else {
     OS.gtk_image_set_from_pixbuf(imageHandle, 0);
   }
   /*
    * If Text/Image of a tool-item changes, then it is
    * required to reset the proxy menu. Otherwise, the
    * old menuItem appears in the overflow menu.
    */
   if ((style & SWT.DROP_DOWN) != 0) {
     proxyMenuItem = 0;
     proxyMenuItem = OS.gtk_tool_item_retrieve_proxy_menu_item(handle);
     OS.g_signal_connect(
         proxyMenuItem, OS.activate, ToolBar.menuItemSelectedFunc.getAddress(), handle);
   }
   parent.relayout();
 }
Exemple #3
0
 /**
  * Sets the receiver's tool tip text to the argument, which may be null indicating that the
  * default tool tip for the control will be shown. For a control that has a default tool tip, such
  * as the Tree control on Windows, setting the tool tip text to an empty string replaces the
  * default, causing no tool tip text to be shown.
  *
  * <p>The mnemonic indicator (character '&amp;') is not displayed in a tool tip. To display a
  * single '&amp;' in the tool tip, the character '&amp;' can be escaped by doubling it in the
  * string.
  *
  * @param string the new tool tip text (or null)
  * @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 setToolTipText(String string) {
   checkWidget();
   if (parent.toolTipText == null) {
     Shell shell = parent._getShell();
     setToolTipText(shell, string);
   }
   toolTipText = string;
   /*
    * Since tooltip text of a tool-item is used in overflow
    * menu when images are not shown, it is required to
    * reset the proxy menu when the tooltip text changes.
    * Otherwise, the old menuItem appears in the overflow
    * menu as a blank item.
    */
   if ((style & SWT.DROP_DOWN) != 0) {
     proxyMenuItem = 0;
     proxyMenuItem = OS.gtk_tool_item_retrieve_proxy_menu_item(handle);
     OS.g_signal_connect(
         proxyMenuItem, OS.activate, ToolBar.menuItemSelectedFunc.getAddress(), handle);
   }
 }
Exemple #4
0
  long /*int*/ gtk_create_menu_proxy(long /*int*/ widget) {
    /*
     * Feature in GTK. If the item is a radio/check button
     * with only image, then that image does not appear in
     * the overflow menu.
     * The fix is to create and use the proxy menu for the
     * items appearing in the overflow menu.
     */
    byte[] buffer = Converter.wcsToMbcs(null, "menu-id", true); // $NON-NLS-1$
    if (proxyMenuItem != 0) {
      /*
       * The menuItem to appear in the overflow menu is cached
       * for the tool-item. If the text/image of the item changes,
       * then the proxyMenu is reset.
       */
      OS.gtk_tool_item_set_proxy_menu_item(widget, buffer, proxyMenuItem);
      return 1;
    }

    if (image != null) {
      ImageList imageList = parent.imageList;
      if (imageList != null) {
        int index = imageList.indexOf(image);
        if (index != -1) {
          long /*int*/ pixbuf = imageList.getPixbuf(index);
          byte[] label = null;
          int[] showImages = new int[] {1};
          long /*int*/ settings = OS.gtk_settings_get_default();
          if (settings != 0) {
            long /*int*/ property =
                OS.g_object_class_find_property(
                    OS.G_OBJECT_GET_CLASS(settings), OS.gtk_menu_images);
            if (property != 0) OS.g_object_get(settings, OS.gtk_menu_images, showImages, 0);
          }

          /*
           * GTK tool items with only image appear as blank items
           * in overflow menu when the system property "gtk-menu-images"
           * is set to false. To avoid that, display the tooltip text
           * if available, in the overflow menu.
           * Feature in GTK. When the menuItem is initialised only
           * with the image, the overflow menu appears very sloppy.
           * The fix is to initialise menu item with empty string.
           */
          if (text == null || text.length() == 0) {
            if ((showImages[0] == 0) && (toolTipText != null))
              label = Converter.wcsToMbcs(null, toolTipText, true);
            else label = new byte[] {0};
          } else {
            label = Converter.wcsToMbcs(null, text, true);
          }
          long /*int*/ menuItem = OS.gtk_image_menu_item_new_with_label(label);
          long /*int*/ menuImage = OS.gtk_image_new_from_pixbuf(pixbuf);
          OS.gtk_image_menu_item_set_image(menuItem, menuImage);
          OS.gtk_tool_item_set_proxy_menu_item(widget, buffer, menuItem);
          /*
           * Since the arrow button does not appear in the drop_down
           * item, we request the menu-item and then, hook the
           * activate signal to send the Arrow selection signal.
           */
          proxyMenuItem = OS.gtk_tool_item_get_proxy_menu_item(widget, buffer);
          OS.g_signal_connect(
              menuItem, OS.activate, ToolBar.menuItemSelectedFunc.getAddress(), handle);
          return 1;
        }
      }
    }
    return 0;
  }