129 lines
3.6 KiB
C++
129 lines
3.6 KiB
C++
/**
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* @file llviewquery.cpp
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* @brief Implementation of view query class.
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*
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* Copyright (c) 2001-$CurrentYear$, Linden Research, Inc.
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* $License$
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*/
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#include "linden_common.h"
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#include "llview.h"
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#include "lluictrl.h"
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#include "llviewquery.h"
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void LLQuerySorter::operator() (LLView * parent, viewList_t &children) const {}
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filterResult_t LLNoLeavesFilter::operator() (const LLView* const view, const viewList_t & children) const
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{
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return filterResult_t(!(view->getChildList()->size() == 0), TRUE);
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}
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filterResult_t LLVisibleFilter::operator() (const LLView* const view, const viewList_t & children) const
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{
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return filterResult_t(view->getVisible(), view->getVisible());
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}
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filterResult_t LLEnabledFilter::operator() (const LLView* const view, const viewList_t & children) const
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{
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return filterResult_t(view->getEnabled(), view->getEnabled());
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}
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filterResult_t LLTabStopFilter::operator() (const LLView* const view, const viewList_t & children) const
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{
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return filterResult_t(view->isCtrl() && static_cast<const LLUICtrl* const>(view)->hasTabStop(),
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view->canFocusChildren());
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}
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// LLViewQuery
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LLViewQuery::LLViewQuery(): mPreFilters(), mPostFilters(), mSorterp()
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{
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}
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void LLViewQuery::addPreFilter(const LLQueryFilter* prefilter) { mPreFilters.push_back(prefilter); }
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void LLViewQuery::addPostFilter(const LLQueryFilter* postfilter) { mPostFilters.push_back(postfilter); }
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const LLViewQuery::filterList_t & LLViewQuery::getPreFilters() const { return mPreFilters; }
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const LLViewQuery::filterList_t & LLViewQuery::getPostFilters() const { return mPostFilters; }
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void LLViewQuery::setSorter(const LLQuerySorter* sorterp) { mSorterp = sorterp; }
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const LLQuerySorter* LLViewQuery::getSorter() const { return mSorterp; }
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viewList_t LLViewQuery::run(LLView * view) const
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{
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viewList_t result;
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filterResult_t pre = runFilters(view, viewList_t(), mPreFilters);
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if(!pre.first && !pre.second)
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{
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// skip post filters completely if we're not including ourselves or the children
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return result;
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}
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if(pre.second)
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{
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// run filters on children
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viewList_t filtered_children;
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filterChildren(view, filtered_children);
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filterResult_t post = runFilters(view, filtered_children, mPostFilters);
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if(pre.first && post.first)
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{
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result.push_back(view);
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}
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if(post.second)
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{
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result.insert(result.end(), filtered_children.begin(), filtered_children.end());
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}
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}
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else
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{
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if(pre.first)
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{
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result.push_back(view);
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}
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}
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return result;
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}
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void LLViewQuery::filterChildren(LLView * view, viewList_t & filtered_children) const
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{
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LLView::child_list_t views(*(view->getChildList()));
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(*mSorterp)(view, views); // sort the children per the sorter
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for(LLView::child_list_iter_t iter = views.begin();
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iter != views.end();
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iter++)
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{
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viewList_t indiv_children = this->run(*iter);
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filtered_children.insert(filtered_children.end(), indiv_children.begin(), indiv_children.end());
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}
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}
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filterResult_t LLViewQuery::runFilters(LLView * view, const viewList_t children, const filterList_t filters) const
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{
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filterResult_t result = filterResult_t(TRUE, TRUE);
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for(filterList_const_iter_t iter = filters.begin();
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iter != filters.end();
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iter++)
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{
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filterResult_t filtered = (**iter)(view, children);
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result.first = result.first && filtered.first;
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result.second = result.second && filtered.second;
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}
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return result;
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}
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class SortByTabOrder : public LLQuerySorter, public LLSingleton<SortByTabOrder>
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{
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/*virtual*/ void operator() (LLView * parent, LLView::child_list_t &children) const
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{
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children.sort(LLCompareByTabOrder(parent->getCtrlOrder()));
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}
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};
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LLCtrlQuery::LLCtrlQuery() :
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LLViewQuery()
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{
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setSorter(SortByTabOrder::getInstance());
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}
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