llviewmodel.cpp
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- /**
- * @file llviewmodel.cpp
- * @author Nat Goodspeed
- * @date 2008-08-08
- * @brief Implementation for llviewmodel.
- *
- * $LicenseInfo:firstyear=2008&license=viewergpl$
- *
- * Copyright (c) 2008-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- // Precompiled header
- #include "linden_common.h"
- // associated header
- #include "llviewmodel.h"
- // STL headers
- // std headers
- // external library headers
- // other Linden headers
- ///
- LLViewModel::LLViewModel()
- : mDirty(false)
- {
- }
- /// Instantiate an LLViewModel with an existing data value
- LLViewModel::LLViewModel(const LLSD& value)
- : mDirty(false)
- {
- setValue(value);
- }
- /// Update the stored value
- void LLViewModel::setValue(const LLSD& value)
- {
- mValue = value;
- mDirty = true;
- }
- LLSD LLViewModel::getValue() const
- {
- return mValue;
- }
- ////////////////////////////////////////////////////////////////////////////
- ///
- LLTextViewModel::LLTextViewModel()
- : LLViewModel(false),
- mUpdateFromDisplay(false)
- {
- }
- /// Instantiate an LLViewModel with an existing data value
- LLTextViewModel::LLTextViewModel(const LLSD& value)
- : LLViewModel(value),
- mUpdateFromDisplay(false)
- {
- }
- /// Update the stored value
- void LLTextViewModel::setValue(const LLSD& value)
- {
- LLViewModel::setValue(value);
- mDisplay = utf8str_to_wstring(value.asString());
- // mDisplay and mValue agree
- mUpdateFromDisplay = false;
- }
- void LLTextViewModel::setDisplay(const LLWString& value)
- {
- // This is the strange way to alter the value. Normally we'd setValue()
- // and do the utf8str_to_wstring() to get the corresponding mDisplay
- // value. But a text editor might want to edit the display string
- // directly, then convert back to UTF8 on commit.
- mDisplay = value;
- mDirty = true;
- // Don't immediately convert to UTF8 -- do it lazily -- we expect many
- // more setDisplay() calls than getValue() calls. Just flag that it needs
- // doing.
- mUpdateFromDisplay = true;
- }
- LLSD LLTextViewModel::getValue() const
- {
- // Has anyone called setDisplay() since the last setValue()? If so, have
- // to convert mDisplay back to UTF8.
- if (mUpdateFromDisplay)
- {
- // The fact that we're lazily updating fields in this object should be
- // transparent to clients, which is why this method is left
- // conventionally const. Nor do we particularly want to make these
- // members mutable. Just cast away constness in this one place.
- LLTextViewModel* nthis = const_cast<LLTextViewModel*>(this);
- nthis->mUpdateFromDisplay = false;
- nthis->mValue = wstring_to_utf8str(mDisplay);
- }
- return LLViewModel::getValue();
- }
- ////////////////////////////////////////////////////////////////////////////
- LLListViewModel::LLListViewModel(const LLSD& values)
- : LLViewModel()
- {
- }
- void LLListViewModel::addColumn(const LLSD& column, EAddPosition pos)
- {
- }
- void LLListViewModel::clearColumns()
- {
- }
- void LLListViewModel::setColumnLabel(const std::string& column, const std::string& label)
- {
- }
- LLScrollListItem* LLListViewModel::addElement(const LLSD& value, EAddPosition pos,
- void* userdata)
- {
- return NULL;
- }
- LLScrollListItem* LLListViewModel::addSimpleElement(const std::string& value, EAddPosition pos,
- const LLSD& id)
- {
- return NULL;
- }
- void LLListViewModel::clearRows()
- {
- }
- void LLListViewModel::sortByColumn(const std::string& name, bool ascending)
- {
- }