50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
/**
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* @file llviewinject.cpp
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* @author Nat Goodspeed
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* @date 2011-08-16
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* @brief Implementation for llviewinject.
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*
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* $LicenseInfo:firstyear=2011&license=viewerlgpl$
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* Copyright (c) 2011, Linden Research, Inc.
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* $/LicenseInfo$
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*/
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// Precompiled header
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#include "linden_common.h"
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// associated header
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#include "llviewinject.h"
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// STL headers
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// std headers
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// external library headers
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// other Linden headers
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llview::TargetEvent::TargetEvent(LLView* view)
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{
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// Walk up the view tree from target LLView to the root (NULL). If
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// passed NULL, iterate 0 times.
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for (; view; view = view->getParent())
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{
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// At each level, operator() is going to ask: for a particular parent
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// LLView*, which of its children should I select? So for this view's
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// parent, select this view.
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mChildMap[view->getParent()] = view;
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}
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}
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bool llview::TargetEvent::operator()(const LLView* view, S32 /*x*/, S32 /*y*/) const
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{
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// We are being called to decide whether to direct an incoming mouse event
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// to this child view. (Normal LLView processing is to check whether the
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// incoming (x, y) is within the view.) Look up the parent to decide
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// whether, for that parent, this is the previously-selected child.
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ChildMap::const_iterator found(mChildMap.find(view->getParent()));
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// If we're looking at a child whose parent isn't even in the map, never
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// mind.
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if (found == mChildMap.end())
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{
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return false;
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}
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// So, is this the predestined child for this parent?
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return (view == found->second);
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}
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