164 lines
4.5 KiB
C++
164 lines
4.5 KiB
C++
/**
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* @file llviewmodel.cpp
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* @author Nat Goodspeed
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* @date 2008-08-08
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* @brief Implementation for llviewmodel.
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*
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* $LicenseInfo:firstyear=2008&license=viewergpl$
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*
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* Copyright (c) 2008-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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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 "llviewmodel.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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///
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LLViewModel::LLViewModel()
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: mDirty(false)
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{
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}
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/// Instantiate an LLViewModel with an existing data value
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LLViewModel::LLViewModel(const LLSD& value)
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: mDirty(false)
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{
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setValue(value);
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}
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/// Update the stored value
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void LLViewModel::setValue(const LLSD& value)
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{
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mValue = value;
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mDirty = true;
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}
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LLSD LLViewModel::getValue() const
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{
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return mValue;
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}
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////////////////////////////////////////////////////////////////////////////
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///
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LLTextViewModel::LLTextViewModel()
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: LLViewModel(false),
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mUpdateFromDisplay(false)
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{
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}
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/// Instantiate an LLViewModel with an existing data value
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LLTextViewModel::LLTextViewModel(const LLSD& value)
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: LLViewModel(value),
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mUpdateFromDisplay(false)
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{
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}
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/// Update the stored value
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void LLTextViewModel::setValue(const LLSD& value)
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{
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LLViewModel::setValue(value);
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mDisplay = utf8str_to_wstring(value.asString());
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// mDisplay and mValue agree
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mUpdateFromDisplay = false;
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}
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void LLTextViewModel::setDisplay(const LLWString& value)
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{
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// This is the strange way to alter the value. Normally we'd setValue()
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// and do the utf8str_to_wstring() to get the corresponding mDisplay
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// value. But a text editor might want to edit the display string
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// directly, then convert back to UTF8 on commit.
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mDisplay = value;
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mDirty = true;
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// Don't immediately convert to UTF8 -- do it lazily -- we expect many
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// more setDisplay() calls than getValue() calls. Just flag that it needs
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// doing.
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mUpdateFromDisplay = true;
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}
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LLSD LLTextViewModel::getValue() const
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{
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// Has anyone called setDisplay() since the last setValue()? If so, have
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// to convert mDisplay back to UTF8.
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if (mUpdateFromDisplay)
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{
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// The fact that we're lazily updating fields in this object should be
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// transparent to clients, which is why this method is left
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// conventionally const. Nor do we particularly want to make these
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// members mutable. Just cast away constness in this one place.
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LLTextViewModel* nthis = const_cast<LLTextViewModel*>(this);
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nthis->mUpdateFromDisplay = false;
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nthis->mValue = wstring_to_utf8str(mDisplay);
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}
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return LLViewModel::getValue();
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}
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////////////////////////////////////////////////////////////////////////////
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LLListViewModel::LLListViewModel(const LLSD& values)
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: LLViewModel()
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{
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}
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void LLListViewModel::addColumn(const LLSD& column, EAddPosition pos)
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{
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}
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void LLListViewModel::clearColumns()
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{
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}
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void LLListViewModel::setColumnLabel(const std::string& column, const std::string& label)
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{
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}
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LLScrollListItem* LLListViewModel::addElement(const LLSD& value, EAddPosition pos,
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void* userdata)
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{
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return NULL;
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}
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LLScrollListItem* LLListViewModel::addSimpleElement(const std::string& value, EAddPosition pos,
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const LLSD& id)
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{
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return NULL;
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}
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void LLListViewModel::clearRows()
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{
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}
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void LLListViewModel::sortByColumn(const std::string& name, bool ascending)
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{
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}
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