/indra/llui/llviewquery.cpp
C++ | 151 lines | 98 code | 19 blank | 34 comment | 16 complexity | 625b4f960e5f78a24bad331068feb760 MD5 | raw file
Possible License(s): LGPL-2.1
- /**
- * @file llviewquery.cpp
- * @brief Implementation of view query class.
- *
- * $LicenseInfo:firstyear=2001&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- #include "llview.h"
- #include "lluictrl.h"
- #include "llviewquery.h"
- void LLQuerySorter::operator() (LLView * parent, viewList_t &children) const {}
- filterResult_t LLLeavesFilter::operator() (const LLView* const view, const viewList_t & children) const
- {
- return filterResult_t(children.empty(), TRUE);
- }
- filterResult_t LLRootsFilter::operator() (const LLView* const view, const viewList_t & children) const
- {
- return filterResult_t(TRUE, FALSE);
- }
- filterResult_t LLVisibleFilter::operator() (const LLView* const view, const viewList_t & children) const
- {
- return filterResult_t(view->getVisible(), view->getVisible());
- }
- filterResult_t LLEnabledFilter::operator() (const LLView* const view, const viewList_t & children) const
- {
- return filterResult_t(view->getEnabled(), view->getEnabled());
- }
- filterResult_t LLTabStopFilter::operator() (const LLView* const view, const viewList_t & children) const
- {
- return filterResult_t(view->isCtrl() && static_cast<const LLUICtrl*>(view)->hasTabStop(),
- view->canFocusChildren());
- }
- filterResult_t LLCtrlFilter::operator() (const LLView* const view, const viewList_t & children) const
- {
- return filterResult_t(view->isCtrl(),TRUE);
- }
- //
- // LLViewQuery
- //
- viewList_t LLViewQuery::run(LLView* view) const
- {
- viewList_t result;
- // prefilter gets immediate children of view
- filterResult_t pre = runFilters(view, *view->getChildList(), mPreFilters);
- if(!pre.first && !pre.second)
- {
- // not including ourselves or the children
- // nothing more to do
- return result;
- }
- viewList_t filtered_children;
- filterResult_t post(TRUE, TRUE);
- if(pre.second)
- {
- // run filters on children
- filterChildren(view, filtered_children);
- // only run post filters if this element passed pre filters
- // so if you failed to pass the pre filter, you can't filter out children in post
- if (pre.first)
- {
- post = runFilters(view, filtered_children, mPostFilters);
- }
- }
- if(pre.first && post.first)
- {
- result.push_back(view);
- }
- if(pre.second && post.second)
- {
- result.insert(result.end(), filtered_children.begin(), filtered_children.end());
- }
- return result;
- }
- void LLViewQuery::filterChildren(LLView * view, viewList_t & filtered_children) const
- {
- LLView::child_list_t views(*(view->getChildList()));
- if (mSorterp)
- {
- (*mSorterp)(view, views); // sort the children per the sorter
- }
- for(LLView::child_list_iter_t iter = views.begin();
- iter != views.end();
- iter++)
- {
- viewList_t indiv_children = this->run(*iter);
- filtered_children.splice(filtered_children.end(), indiv_children);
- }
- }
- filterResult_t LLViewQuery::runFilters(LLView * view, const viewList_t children, const filterList_t filters) const
- {
- filterResult_t result = filterResult_t(TRUE, TRUE);
- for(filterList_const_iter_t iter = filters.begin();
- iter != filters.end();
- iter++)
- {
- filterResult_t filtered = (**iter)(view, children);
- result.first = result.first && filtered.first;
- result.second = result.second && filtered.second;
- }
- return result;
- }
- class SortByTabOrder : public LLQuerySorter, public LLSingleton<SortByTabOrder>
- {
- /*virtual*/ void operator() (LLView * parent, LLView::child_list_t &children) const
- {
- children.sort(LLCompareByTabOrder(parent->getCtrlOrder()));
- }
- };
- LLCtrlQuery::LLCtrlQuery() :
- LLViewQuery()
- {
- setSorter(SortByTabOrder::getInstance());
- }