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/**
* @file llcontrol.h
* @brief A mechanism for storing "control state" for a program
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* 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://secondlife.com/developers/opensource/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://secondlife.com/developers/opensource/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_LLCONTROL_H
#define LL_LLCONTROL_H
#include "llevent.h"
#include "llnametable.h"
#include "llmap.h"
#include "llstring.h"
#include "llrect.h"
class LLVector3;
class LLVector3d;
class LLColor4;
class LLColor3;
class LLColor4U;
const BOOL NO_PERSIST = FALSE;
typedef enum e_control_type
{
TYPE_U32,
TYPE_S32,
TYPE_F32,
TYPE_BOOLEAN,
TYPE_STRING,
TYPE_VEC3,
TYPE_VEC3D,
TYPE_RECT,
TYPE_COL4,
TYPE_COL3,
TYPE_COL4U
} eControlType;
class LLControlBase : public LLSimpleListenerObservable
{
friend class LLControlGroup;
protected:
LLString mName;
LLString mComment;
eControlType mType;
BOOL mHasRange;
BOOL mPersist;
BOOL mIsDefault;
static std::set<LLControlBase*> mChangedControls;
static std::list<S32> mFreeIDs;//These lists are used to store the ID's of registered event listeners.
static std::list<S32> mUsedIDs;
static S32 mTopID;//This is the index of the highest ID event listener ID. When the free pool is exhausted, new IDs are allocated from here.
public:
static void releaseListenerID(S32 id);
static S32 allocateListenerID();
static void updateAllListeners();
virtual void updateListeners() = 0;
LLControlBase(const LLString& name, eControlType type, const LLString& comment, BOOL persist)
: mName(name),
mComment(comment),
mType(type),
mHasRange(FALSE),
mPersist(persist),
mIsDefault(TRUE)
{
if (mPersist && mComment.empty())
{
llerrs << "Must supply a comment for control " << mName << llendl;
}
sMaxControlNameLength = llmax((U32)mName.size(), sMaxControlNameLength);
}
virtual ~LLControlBase();
const LLString& getName() const { return mName; }
const LLString& getComment() const { return mComment; }
eControlType type() { return mType; }
BOOL isType(eControlType tp) { return tp == mType; }
// Defaults to no-op
virtual void resetToDefault();
LLSD registerListener(LLSimpleListenerObservable *listener, LLSD userdata = "");
virtual LLSD get() const = 0;
virtual LLSD getValue() const = 0;
virtual void setValue(LLSD value) = 0;
virtual void set(LLSD value) = 0;
// From LLSimpleListener
virtual bool handleEvent(LLPointer<LLEvent> event, const LLSD& userdata);
void firePropertyChanged();
static U32 sMaxControlNameLength;
protected:
const char* name() { return mName.c_str(); }
const char* comment() { return mComment.c_str(); }
};
class LLControl
: public LLControlBase
{
friend class LLControlGroup;
protected:
LLSD mCurrent;
LLSD mDefault;
public:
typedef void tListenerCallback(const LLSD& newValue,S32 listenerID, LLControl& control);
typedef struct{
S32 mID;
LLSD mNewValue;
tListenerCallback* mCBFN;
}tPropertyChangedEvent;
typedef std::list<tPropertyChangedEvent>::iterator tPropertyChangedListIter;
std::list<tPropertyChangedEvent> mChangeEvents;
std::list< tListenerCallback* > mListeners;
std::list< S32 > mListenerIDs;
virtual void updateListeners();
S32 addListener(tListenerCallback* cbfn);
LLControl(
const LLString& name,
eControlType type,
LLSD initial, const
LLString& comment,
BOOL persist = TRUE);
void set(LLSD val) { setValue(val); }
LLSD get() const { return getValue(); }
LLSD getdefault() const { return mDefault; }
LLSD getValue() const { return mCurrent; }
BOOL llsd_compare(const LLSD& a, const LLSD& b);
void setValue(LLSD value)
{
if (llsd_compare(mCurrent, value) == FALSE)
{
mCurrent = value;
mIsDefault = llsd_compare(mCurrent, mDefault);
firePropertyChanged();
}
}
/*virtual*/ void resetToDefault()
{
setValue(mDefault);
}
virtual ~LLControl()
{
//Remove and deregister all listeners..
while(mListenerIDs.size())
{
S32 id = mListenerIDs.front();
mListenerIDs.pop_front();
releaseListenerID(id);
}
}
};
//const U32 STRING_CACHE_SIZE = 10000;
class LLControlGroup
{
public:
typedef std::map<LLString, LLPointer<LLControlBase> > ctrl_name_table_t;
ctrl_name_table_t mNameTable;
std::set<LLString> mWarnings;
public:
LLControlGroup();
~LLControlGroup();
void cleanup();
LLControlBase* getControl(const LLString& name);
LLSD registerListener(const LLString& name, LLSimpleListenerObservable *listener);
BOOL declareControl(const LLString& name, eControlType type, const LLSD initial_val, const LLString& comment, BOOL persist);
BOOL declareU32(const LLString& name, U32 initial_val, const LLString& comment, BOOL persist = TRUE);
BOOL declareS32(const LLString& name, S32 initial_val, const LLString& comment, BOOL persist = TRUE);
BOOL declareF32(const LLString& name, F32 initial_val, const LLString& comment, BOOL persist = TRUE);
BOOL declareBOOL(const LLString& name, BOOL initial_val, const LLString& comment, BOOL persist = TRUE);
BOOL declareString(const LLString& name, const LLString &initial_val, const LLString& comment, BOOL persist = TRUE);
BOOL declareVec3(const LLString& name, const LLVector3 &initial_val,const LLString& comment, BOOL persist = TRUE);
BOOL declareVec3d(const LLString& name, const LLVector3d &initial_val, const LLString& comment, BOOL persist = TRUE);
BOOL declareRect(const LLString& name, const LLRect &initial_val, const LLString& comment, BOOL persist = TRUE);
BOOL declareColor4U(const LLString& name, const LLColor4U &initial_val, const LLString& comment, BOOL persist = TRUE);
BOOL declareColor4(const LLString& name, const LLColor4 &initial_val, const LLString& comment, BOOL persist = TRUE);
BOOL declareColor3(const LLString& name, const LLColor3 &initial_val, const LLString& comment, BOOL persist = TRUE);
LLString findString(const LLString& name);
LLString getString(const LLString& name);
LLWString getWString(const LLString& name);
LLString getText(const LLString& name);
LLVector3 getVector3(const LLString& name);
LLVector3d getVector3d(const LLString& name);
LLRect getRect(const LLString& name);
BOOL getBOOL(const LLString& name);
S32 getS32(const LLString& name);
F32 getF32(const LLString& name);
U32 getU32(const LLString& name);
LLSD getValue(const LLString& name);
// Note: If an LLColor4U control exists, it will cast it to the correct
// LLColor4 for you.
LLColor4 getColor(const LLString& name);
LLColor4U getColor4U(const LLString& name);
LLColor4 getColor4(const LLString& name);
LLColor3 getColor3(const LLString& name);
void setBOOL(const LLString& name, BOOL val);
void setS32(const LLString& name, S32 val);
void setF32(const LLString& name, F32 val);
void setU32(const LLString& name, U32 val);
void setString(const LLString& name, const LLString& val);
void setVector3(const LLString& name, const LLVector3 &val);
void setVector3d(const LLString& name, const LLVector3d &val);
void setRect(const LLString& name, const LLRect &val);
void setColor4U(const LLString& name, const LLColor4U &val);
void setColor4(const LLString& name, const LLColor4 &val);
void setColor3(const LLString& name, const LLColor3 &val);
void setValue(const LLString& name, const LLSD& val);
BOOL controlExists(const LLString& name);
// Returns number of controls loaded, 0 if failed
// If require_declaration is false, will auto-declare controls it finds
// as the given type.
U32 loadFromFileLegacy(const LLString& filename, BOOL require_declaration = TRUE, eControlType declare_as = TYPE_STRING);
U32 loadFromFile(const LLString& filename, BOOL require_declaration = TRUE, eControlType declare_as = TYPE_STRING);
U32 saveToFile(const LLString& filename, BOOL skip_if_default);
void applyOverrides(const std::map<std::string, std::string>& overrides);
void resetToDefaults();
// Ignorable Warnings
// Add a config variable to be reset on resetWarnings()
void addWarning(const LLString& name);
BOOL getWarning(const LLString& name);
void setWarning(const LLString& name, BOOL val);
// Resets all ignorables
void resetWarnings();
};
#endif
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