cortex/DiagramView/DiagramItemGroup.cpp

39 	which type of item you want to deal with.
99 //	#pragma mark - item accessors
131 /*! Returns a pointer to the item in the lists which is
176 			DiagramItem *item = ItemAt(i, DiagramItem::M_BOX);
177 			if (item->Frame().Contains(point) && (item->howCloseTo(point) == 1.0)) {
178 				// DiagramItemGroup *group = dynamic_cast<DiagramItemGroup *>(item);
179 				return (fLastItemUnder = item);
188 			DiagramItem *item = ItemAt(i, DiagramItem::M_WIRE);
189 			if (item->Frame().Contains(point)) {
190 				float howClose = item->howCloseTo(point);
192 					closestItem = item;
194 						return (fLastItemUnder = item);
206 			DiagramItem *item = ItemAt(i, DiagramItem::M_ENDPOINT);
207 			if (item->Frame().Contains(point) && (item->howCloseTo(point) == 1.0))
208 				return (fLastItemUnder = item);
212 	return (fLastItemUnder = 0); // no item was found!
216 //	#pragma mark - item operations
219 //! Adds an \param item to the group; returns true on success.
221 DiagramItemGroup::AddItem(DiagramItem *item)
224 	if (item && (fTypes & item->type())) {
225 		if (item->m_group)
226 			item->m_group->RemoveItem(item);
228 		switch (item->type()) {
232 				item->m_group = this;
233 				return fBoxes->AddItem(static_cast<void *>(item));
238 				item->m_group = this;
239 				return fWires->AddItem(static_cast<void *>(item));
244 				item->m_group = this;
245 				return fEndPoints->AddItem(static_cast<void *>(item));
253 //! Removes an \param item from the group; returns true on success.
255 DiagramItemGroup::RemoveItem(DiagramItem* item)
258 	if (item && (fTypes & item->type())) {
259 		// reset the lastItemUnder-pointer if it pointed to this item
260 		if (fLastItemUnder == item)
264 		if (item->isSelected())
265 			fSelection->RemoveItem(static_cast<void *>(item));
267 		// try to remove the item from its list
268 		switch (item->type()) {
271 					item->m_group = 0;
272 					return fBoxes->RemoveItem(static_cast<void *>(item));
278 					item->m_group = 0;
279 					return fWires->RemoveItem(static_cast<void *>(item));
285 					item->m_group = 0;
286 					return fEndPoints->RemoveItem(static_cast<void *>(item));
297 	implementation); can't handle more than one item type at a
330 	the more recently selected item are drawn above others.
338 			DiagramItem *item = ItemAt(i, DiagramItem::M_WIRE);
339 			if (item->Frame().Intersects(updateRect))
340 				item->Draw(updateRect);
346 			DiagramItem *item = ItemAt(i, DiagramItem::M_BOX);
347 			if (item && item->Frame().Intersects(updateRect)) {
348 				item->Draw(updateRect);
350 					updateRegion->Exclude(item->Frame());
357 			DiagramItem *item = ItemAt(i, DiagramItem::M_ENDPOINT);
358 			if (item && item->Frame().Intersects(updateRect))
359 				item->Draw(updateRect);
366 	DiagramItem in \param which; returns false if no items are above or the item
379 				if (index >= 0) { // the item was found
382 						DiagramItem *item = ItemAt(i, DiagramItem::M_BOX);
383 						if (item && item->Frame().Intersects(r)) {
384 							region->Include(item->Frame() & r);
396 					DiagramItem *item = ItemAt(i, DiagramItem::M_BOX);
397 					if (item && item->Frame().Intersects(r)) {
398 						region->Include(item->Frame() & r);
440 /*!	Returns a pointer to the item in the list which is
458 /*!	Selects an item, optionally replacing the complete former
459 	selection. If the type of the item to be selected differs
469 		// check if the item's type is the same as of the other
482 		// select the item
503 //!	Simply deselects one item
567 	item alignment into account; in updateRegion the areas
578 				DiagramItem *item = dynamic_cast<DiagramItem *>(SelectedItemAt(i));
579 				if (item->isDraggable())
580 					item->MoveBy(x, y, updateRegion);