/**
  * This implementation of <code>dragOver</code> provides a default drag under effect for the
  * feedback specified in <code>event.feedback</code>. The class description lists the FEEDBACK
  * constants that are applicable to the class.
  *
  * <p>For additional information see <code>DropTargetAdapter.dragOver</code>.
  *
  * <p>Subclasses that override this method should call <code>super.dragOver(event)</code> to get
  * the default drag under effect implementation.
  *
  * @param event the information associated with the drag over event
  * @see DropTargetAdapter
  * @see DropTargetEvent
  * @see DND#FEEDBACK_SELECT
  * @see DND#FEEDBACK_SCROLL
  */
 public void dragOver(DropTargetEvent event) {
   Table table = (Table) control;
   long /*int*/ handle = table.handle;
   int effect = checkEffect(event.feedback);
   Point coordinates = new Point(event.x, event.y);
   coordinates = table.toControl(coordinates);
   long /*int*/[] path = new long /*int*/[1];
   OS.gtk_tree_view_get_path_at_pos(handle, coordinates.x, coordinates.y, path, null, null, null);
   int index = -1;
   if (path[0] != 0) {
     long /*int*/ indices = OS.gtk_tree_path_get_indices(path[0]);
     if (indices != 0) {
       int[] temp = new int[1];
       OS.memmove(temp, indices, 4);
       index = temp[0];
     }
   }
   if ((effect & DND.FEEDBACK_SCROLL) == 0) {
     scrollBeginTime = 0;
     scrollIndex = -1;
   } else {
     if (index != -1 && scrollIndex == index && scrollBeginTime != 0) {
       if (System.currentTimeMillis() >= scrollBeginTime) {
         if (coordinates.y < table.getItemHeight()) {
           OS.gtk_tree_path_prev(path[0]);
         } else {
           OS.gtk_tree_path_next(path[0]);
         }
         if (path[0] != 0) {
           OS.gtk_tree_view_scroll_to_cell(handle, path[0], 0, false, 0, 0);
           OS.gtk_tree_path_free(path[0]);
           path[0] = 0;
           OS.gtk_tree_view_get_path_at_pos(
               handle, coordinates.x, coordinates.y, path, null, null, null);
         }
         scrollBeginTime = 0;
         scrollIndex = -1;
       }
     } else {
       scrollBeginTime = System.currentTimeMillis() + SCROLL_HYSTERESIS;
       scrollIndex = index;
     }
   }
   if (path[0] != 0) {
     int position = 0;
     if ((effect & DND.FEEDBACK_SELECT) != 0) position = OS.GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
     // if ((effect & DND.FEEDBACK_INSERT_BEFORE) != 0) position = OS.GTK_TREE_VIEW_DROP_BEFORE;
     // if ((effect & DND.FEEDBACK_INSERT_AFTER) != 0) position = OS.GTK_TREE_VIEW_DROP_AFTER;
     if (position != 0) {
       OS.gtk_tree_view_set_drag_dest_row(handle, path[0], OS.GTK_TREE_VIEW_DROP_INTO_OR_BEFORE);
     } else {
       OS.gtk_tree_view_set_drag_dest_row(handle, 0, OS.GTK_TREE_VIEW_DROP_BEFORE);
     }
   } else {
     OS.gtk_tree_view_set_drag_dest_row(handle, 0, OS.GTK_TREE_VIEW_DROP_BEFORE);
   }
   if (path[0] != 0) OS.gtk_tree_path_free(path[0]);
 }
 void createItem(TabItem item, int index) {
   long /*int*/ list = OS.gtk_container_get_children(handle);
   int itemCount = 0;
   if (list != 0) {
     itemCount = OS.g_list_length(list);
     OS.g_list_free(list);
   }
   if (!(0 <= index && index <= itemCount)) error(SWT.ERROR_INVALID_RANGE);
   if (itemCount == items.length) {
     TabItem[] newItems = new TabItem[items.length + 4];
     System.arraycopy(items, 0, newItems, 0, items.length);
     items = newItems;
   }
   long /*int*/ boxHandle = gtk_box_new(OS.GTK_ORIENTATION_HORIZONTAL, false, 0);
   if (boxHandle == 0) error(SWT.ERROR_NO_HANDLES);
   long /*int*/ labelHandle = OS.gtk_label_new_with_mnemonic(null);
   if (labelHandle == 0) error(SWT.ERROR_NO_HANDLES);
   long /*int*/ imageHandle = OS.gtk_image_new();
   if (imageHandle == 0) error(SWT.ERROR_NO_HANDLES);
   OS.gtk_container_add(boxHandle, imageHandle);
   OS.gtk_container_add(boxHandle, labelHandle);
   long /*int*/ pageHandle = OS.g_object_new(display.gtk_fixed_get_type(), 0);
   if (pageHandle == 0) error(SWT.ERROR_NO_HANDLES);
   if (OS.GTK3) {
     OS.gtk_widget_override_background_color(pageHandle, OS.GTK_STATE_FLAG_NORMAL, new GdkRGBA());
     long /*int*/ region = OS.gdk_region_new();
     OS.gtk_widget_input_shape_combine_region(pageHandle, region);
     OS.gdk_region_destroy(region);
   }
   OS.g_signal_handlers_block_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
   OS.gtk_notebook_insert_page(handle, pageHandle, boxHandle, index);
   OS.g_signal_handlers_unblock_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
   OS.gtk_widget_show(boxHandle);
   OS.gtk_widget_show(labelHandle);
   OS.gtk_widget_show(pageHandle);
   item.state |= HANDLE;
   item.handle = boxHandle;
   item.labelHandle = labelHandle;
   item.imageHandle = imageHandle;
   item.pageHandle = pageHandle;
   System.arraycopy(items, index, items, index + 1, itemCount++ - index);
   items[index] = item;
   if ((state & FOREGROUND) != 0) {
     item.setForegroundColor(getForegroundColor());
   }
   if ((state & FONT) != 0) {
     item.setFontDescription(getFontDescription());
   }
   if (itemCount == 1) {
     OS.g_signal_handlers_block_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
     OS.gtk_notebook_set_current_page(handle, 0);
     OS.g_signal_handlers_unblock_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
     Event event = new Event();
     event.item = items[0];
     sendSelectionEvent(SWT.Selection, event, false);
     // the widget could be destroyed at this point
   }
 }
 /**
  * Returns an array of <code>TabItem</code>s which are the items in the receiver.
  *
  * <p>Note: This is not the actual structure used by the receiver to maintain its list of items,
  * so modifying the array will not affect the receiver.
  *
  * @return the items in the receiver
  * @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 TabItem[] getItems() {
   checkWidget();
   int count = getItemCount();
   TabItem[] result = new TabItem[count];
   System.arraycopy(items, 0, result, 0, count);
   return result;
 }
 void destroyItem(TabItem item) {
   int index = 0;
   int itemCount = getItemCount();
   while (index < itemCount) {
     if (items[index] == item) break;
     index++;
   }
   if (index == itemCount) error(SWT.ERROR_ITEM_NOT_REMOVED);
   int oldIndex = OS.gtk_notebook_get_current_page(handle);
   OS.g_signal_handlers_block_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
   OS.gtk_notebook_remove_page(handle, index);
   OS.g_signal_handlers_unblock_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
   System.arraycopy(items, index + 1, items, index, --itemCount - index);
   items[itemCount] = null;
   if (index == oldIndex) {
     int newIndex = OS.gtk_notebook_get_current_page(handle);
     if (newIndex != -1) {
       Control control = items[newIndex].getControl();
       if (control != null && !control.isDisposed()) {
         control.setBounds(getClientArea());
         control.setVisible(true);
       }
       Event event = new Event();
       event.item = items[newIndex];
       sendSelectionEvent(SWT.Selection, event, true);
       // the widget could be destroyed at this point
     }
   }
 }
 Rectangle[] getRectangles(int linkIndex) {
   int lineCount = layout.getLineCount();
   Rectangle[] rects = new Rectangle[lineCount];
   int[] lineOffsets = layout.getLineOffsets();
   Point point = offsets[linkIndex];
   int lineStart = 1;
   while (point.x > lineOffsets[lineStart]) lineStart++;
   int lineEnd = 1;
   while (point.y > lineOffsets[lineEnd]) lineEnd++;
   int index = 0;
   if (lineStart == lineEnd) {
     rects[index++] = layout.getBounds(point.x, point.y);
   } else {
     rects[index++] = layout.getBounds(point.x, lineOffsets[lineStart] - 1);
     rects[index++] = layout.getBounds(lineOffsets[lineEnd - 1], point.y);
     if (lineEnd - lineStart > 1) {
       for (int i = lineStart; i < lineEnd - 1; i++) {
         rects[index++] = layout.getLineBounds(i);
       }
     }
   }
   if (rects.length != index) {
     Rectangle[] tmp = new Rectangle[index];
     System.arraycopy(rects, 0, tmp, 0, index);
     rects = tmp;
   }
   return rects;
 }
Exemple #6
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 /**
  * Returns the styles for the ranges.
  *
  * <p>The ranges array contains start and end pairs. Each pair refers to the corresponding style
  * in the styles array. For example, the pair that starts at ranges[n] and ends at ranges[n+1]
  * uses the style at styles[n/2].
  *
  * @return the ranges for the styles
  * @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>
  *
  * @see IME#getRanges
  */
 public TextStyle[] getStyles() {
   checkWidget();
   if (styles == null) return new TextStyle[0];
   TextStyle[] result = new TextStyle[styles.length];
   System.arraycopy(styles, 0, result, 0, styles.length);
   return result;
 }
 /*public*/ void setTabItemList(ToolItem[] tabList) {
   checkWidget();
   if (tabList != null) {
     for (int i = 0; i < tabList.length; i++) {
       ToolItem item = tabList[i];
       if (item == null) error(SWT.ERROR_INVALID_ARGUMENT);
       if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
       if (item.parent != this) error(SWT.ERROR_INVALID_PARENT);
     }
     ToolItem[] newList = new ToolItem[tabList.length];
     System.arraycopy(tabList, 0, newList, 0, tabList.length);
     tabList = newList;
   }
   this.tabItemList = tabList;
 }
 @Override
 Widget[] computeTabList() {
   ToolItem[] items = _getItems();
   if (tabItemList == null) {
     int i = 0;
     while (i < items.length && items[i].control == null) i++;
     if (i == items.length) return super.computeTabList();
   }
   Widget result[] = {};
   if (!isTabGroup() || !isEnabled() || !isVisible()) return result;
   ToolItem[] list = tabList != null ? _getTabItemList() : items;
   for (int i = 0; i < list.length; i++) {
     ToolItem child = list[i];
     Widget[] childList = child.computeTabList();
     if (childList.length != 0) {
       Widget[] newResult = new Widget[result.length + childList.length];
       System.arraycopy(result, 0, newResult, 0, result.length);
       System.arraycopy(childList, 0, newResult, result.length, childList.length);
       result = newResult;
     }
   }
   if (result.length == 0) result = new Widget[] {this};
   return result;
 }
 static synchronized void loadLibrary() {
   if (loaded) return;
   loaded = true;
   /*
    * Note that the jawt library is loaded explicitly
    * because it cannot be found by the library loader.
    * All exceptions are caught because the library may
    * have been loaded already.
    */
   try {
     System.loadLibrary("jawt");
   } catch (Throwable e) {
   }
   Library.loadLibrary("swt-awt");
 }
 ToolItem[] _getItems() {
   long /*int*/ list = OS.gtk_container_get_children(handle);
   if (list == 0) return new ToolItem[0];
   int count = OS.g_list_length(list);
   ToolItem[] items = new ToolItem[count];
   long /*int*/ originalList = list;
   int index = 0;
   for (int i = 0; i < count; i++) {
     long /*int*/ data = OS.g_list_data(list);
     Widget widget = display.getWidget(data);
     if (widget != null) items[index++] = (ToolItem) widget;
     list = OS.g_list_next(list);
   }
   OS.g_list_free(originalList);
   if (index != items.length) {
     ToolItem[] newItems = new ToolItem[index];
     System.arraycopy(items, 0, newItems, 0, index);
     items = newItems;
   }
   return items;
 }
 String parse(String string) {
   int length = string.length();
   offsets = new Point[length / 4];
   ids = new String[length / 4];
   mnemonics = new int[length / 4 + 1];
   StringBuffer result = new StringBuffer();
   char[] buffer = new char[length];
   string.getChars(0, string.length(), buffer, 0);
   int index = 0, state = 0, linkIndex = 0;
   int start = 0, tagStart = 0, linkStart = 0, endtagStart = 0, refStart = 0;
   while (index < length) {
     char c = Character.toLowerCase(buffer[index]);
     switch (state) {
       case 0:
         if (c == '<') {
           tagStart = index;
           state++;
         }
         break;
       case 1:
         if (c == 'a') state++;
         break;
       case 2:
         switch (c) {
           case 'h':
             state = 7;
             break;
           case '>':
             linkStart = index + 1;
             state++;
             break;
           default:
             if (Character.isWhitespace(c)) break;
             else state = 13;
         }
         break;
       case 3:
         if (c == '<') {
           endtagStart = index;
           state++;
         }
         break;
       case 4:
         state = c == '/' ? state + 1 : 3;
         break;
       case 5:
         state = c == 'a' ? state + 1 : 3;
         break;
       case 6:
         if (c == '>') {
           mnemonics[linkIndex] = parseMnemonics(buffer, start, tagStart, result);
           int offset = result.length();
           parseMnemonics(buffer, linkStart, endtagStart, result);
           offsets[linkIndex] = new Point(offset, result.length() - 1);
           if (ids[linkIndex] == null) {
             ids[linkIndex] = new String(buffer, linkStart, endtagStart - linkStart);
           }
           linkIndex++;
           start = tagStart = linkStart = endtagStart = refStart = index + 1;
           state = 0;
         } else {
           state = 3;
         }
         break;
       case 7:
         state = c == 'r' ? state + 1 : 0;
         break;
       case 8:
         state = c == 'e' ? state + 1 : 0;
         break;
       case 9:
         state = c == 'f' ? state + 1 : 0;
         break;
       case 10:
         state = c == '=' ? state + 1 : 0;
         break;
       case 11:
         if (c == '"') {
           state++;
           refStart = index + 1;
         } else {
           state = 0;
         }
         break;
       case 12:
         if (c == '"') {
           ids[linkIndex] = new String(buffer, refStart, index - refStart);
           state = 2;
         }
         break;
       case 13:
         if (Character.isWhitespace(c)) {
           state = 0;
         } else if (c == '=') {
           state++;
         }
         break;
       case 14:
         state = c == '"' ? state + 1 : 0;
         break;
       case 15:
         if (c == '"') state = 2;
         break;
       default:
         state = 0;
         break;
     }
     index++;
   }
   if (start < length) {
     int tmp = parseMnemonics(buffer, start, tagStart, result);
     int mnemonic = parseMnemonics(buffer, Math.max(tagStart, linkStart), length, result);
     if (mnemonic == -1) mnemonic = tmp;
     mnemonics[linkIndex] = mnemonic;
   } else {
     mnemonics[linkIndex] = -1;
   }
   if (offsets.length != linkIndex) {
     Point[] newOffsets = new Point[linkIndex];
     System.arraycopy(offsets, 0, newOffsets, 0, linkIndex);
     offsets = newOffsets;
     String[] newIDs = new String[linkIndex];
     System.arraycopy(ids, 0, newIDs, 0, linkIndex);
     ids = newIDs;
     int[] newMnemonics = new int[linkIndex + 1];
     System.arraycopy(mnemonics, 0, newMnemonics, 0, linkIndex + 1);
     mnemonics = newMnemonics;
   }
   return result.toString();
 }