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/**
* @file llviewercontrol.h
* @brief references to viewer-specific control files
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2008, 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.
* $/LicenseInfo$
*/
#ifndef LL_LLVIEWERCONTROL_H
#define LL_LLVIEWERCONTROL_H
#include <map>
#include "llcontrol.h"
// Enabled this definition to compile a 'hacked' viewer that
// allows a hacked godmode to be toggled on and off.
#define TOGGLE_HACKED_GODLIKE_VIEWER
#ifdef TOGGLE_HACKED_GODLIKE_VIEWER
extern BOOL gHackGodmode;
#endif
// These functions found in llcontroldef.cpp *TODO: clean this up!
//setting variables are declared in this function
void settings_setup_listeners();
extern std::map<LLString, LLControlGroup*> gSettings;
// for the graphics settings
void create_graphics_group(LLControlGroup& group);
// saved at end of session
extern LLControlGroup gSavedSettings;
extern LLControlGroup gSavedPerAccountSettings;
// Read-only
extern LLControlGroup gColors;
// Saved at end of session
extern LLControlGroup gCrashSettings;
// Set after settings loaded
extern LLString gLastRunVersion;
extern LLString gCurrentVersion;
//! Helper function for LLCachedControl
template <class T>
eControlType get_control_type(const T& in, LLSD& out)
{
llerrs << "Usupported control type: " << typeid(T).name() << "." << llendl;
return TYPE_COUNT;
}
//! Publish/Subscribe object to interact with LLControlGroups.
//! An LLCachedControl instance to connect to a LLControlVariable
//! without have to manually create and bind a listener to a local
//! object.
template <class T>
class LLCachedControl
{
T mCachedValue;
LLPointer<LLControlVariable> mControl;
boost::signals::connection mConnection;
public:
LLCachedControl(const std::string& name,
const T& default_value,
const std::string& comment = "Declared In Code")
{
mControl = gSavedSettings.getControl(name);
if(mControl.isNull())
{
declareTypedControl(gSavedSettings, name, default_value, comment);
mControl = gSavedSettings.getControl(name);
if(mControl.isNull())
{
llerrs << "The control could not be created!!!" << llendl;
}
mCachedValue = default_value;
}
else
{
mCachedValue = (const T&)mControl->getValue();
}
// Add a listener to the controls signal...
mControl->getSignal()->connect(
boost::bind(&LLCachedControl<T>::handleValueChange, this, _1)
);
}
~LLCachedControl()
{
if(mConnection.connected())
{
mConnection.disconnect();
}
}
LLCachedControl& operator =(const T& newvalue)
{
setTypeValue(*mControl, newvalue);
}
operator const T&() { return mCachedValue; }
private:
void declareTypedControl(LLControlGroup& group,
const std::string& name,
const T& default_value,
const std::string& comment)
{
LLSD init_value;
eControlType type = get_control_type<T>(default_value, init_value);
if(type < TYPE_COUNT)
{
group.declareControl(name, type, init_value, comment, FALSE);
}
}
bool handleValueChange(const LLSD& newvalue)
{
mCachedValue = (const T &)newvalue;
return true;
}
void setTypeValue(LLControlVariable& c, const T& v)
{
// Implicit conversion from T to LLSD...
c.set(v);
}
};
template <> eControlType get_control_type<U32>(const U32& in, LLSD& out);
template <> eControlType get_control_type<S32>(const S32& in, LLSD& out);
template <> eControlType get_control_type<F32>(const F32& in, LLSD& out);
template <> eControlType get_control_type<bool> (const bool& in, LLSD& out);
// Yay BOOL, its really an S32.
//template <> eControlType get_control_type<BOOL> (const BOOL& in, LLSD& out)
template <> eControlType get_control_type<std::string>(const std::string& in, LLSD& out);
template <> eControlType get_control_type<LLVector3>(const LLVector3& in, LLSD& out);
template <> eControlType get_control_type<LLVector3d>(const LLVector3d& in, LLSD& out);
template <> eControlType get_control_type<LLRect>(const LLRect& in, LLSD& out);
template <> eControlType get_control_type<LLColor4>(const LLColor4& in, LLSD& out);
template <> eControlType get_control_type<LLColor3>(const LLColor3& in, LLSD& out);
template <> eControlType get_control_type<LLColor4U>(const LLColor4U& in, LLSD& out);
template <> eControlType get_control_type<LLSD>(const LLSD& in, LLSD& out);
//#define TEST_CACHED_CONTROL 1
#ifdef TEST_CACHED_CONTROL
void test_cached_control();
#endif TEST_CACHED_CONTROL
#endif // LL_LLVIEWERCONTROL_H
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