565 lines
19 KiB
C++
565 lines
19 KiB
C++
/**
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* @file llcontrol.h
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* @brief A mechanism for storing "control state" for a program
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_LLCONTROL_H
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#define LL_LLCONTROL_H
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#include "llboost.h"
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#include "llevent.h"
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#include "llnametable.h"
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#include "llmap.h"
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#include "llstring.h"
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#include "llrect.h"
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#include "v4color.h"
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#include "v4coloru.h"
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#include "llinstancetracker.h"
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#include "llrefcount.h"
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#include "llcontrolgroupreader.h"
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#include <vector>
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// *NOTE: boost::visit_each<> generates warning 4675 on .net 2003
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// Disable the warning for the boost includes.
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#if LL_WINDOWS
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# if (_MSC_VER >= 1300 && _MSC_VER < 1400)
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# pragma warning(push)
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# pragma warning( disable : 4675 )
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# endif
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#endif
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#include <boost/bind.hpp>
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#if LL_WINDOWS
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#pragma warning (push)
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#pragma warning (disable : 4263) // boost::signals2::expired_slot::what() has const mismatch
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#pragma warning (disable : 4264)
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#endif
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#include <boost/signals2.hpp>
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#if LL_WINDOWS
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#pragma warning (pop)
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#endif
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#if LL_WINDOWS
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# if (_MSC_VER >= 1300 && _MSC_VER < 1400)
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# pragma warning(pop)
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# endif
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#endif
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#if LL_RELEASE_WITH_DEBUG_INFO
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#define PROF_CTRL_CALLS
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#endif //LL_RELEASE_WITH_DEBUG_INFO
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class LLVector3;
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class LLVector3d;
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class LLColor3;
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const BOOL NO_PERSIST = FALSE;
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// Saved at end of session
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class LLControlGroup; //Defined further down
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extern LLControlGroup gSavedSettings; //Default control group used in LLCachedControl
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extern LLControlGroup gSavedPerAccountSettings; //For ease
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typedef enum e_control_type
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{
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TYPE_U32 = 0,
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TYPE_S32,
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TYPE_F32,
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TYPE_BOOLEAN,
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TYPE_STRING,
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TYPE_VEC3,
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TYPE_VEC3D,
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TYPE_RECT,
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TYPE_COL4,
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TYPE_COL4U, //exist merely for legacy colors.xml support. Not a real control type.
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TYPE_COL3,
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TYPE_LLSD,
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TYPE_COUNT
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} eControlType;
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class LLControlVariable : public LLRefCount
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{
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LOG_CLASS(LLControlVariable);
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friend class LLControlGroup;
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public:
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typedef boost::signals2::signal<bool(LLControlVariable* control, const LLSD&), boost_boolean_combiner> validate_signal_t;
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typedef boost::signals2::signal<void(LLControlVariable* control, const LLSD&)> commit_signal_t;
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private:
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std::string mName;
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std::string mComment;
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eControlType mType;
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bool mPersist;
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bool mHideFromSettingsEditor;
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std::vector<LLSD> mValues;
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boost::shared_ptr<commit_signal_t> mCommitSignal; //Signals are non-copyable. Therefore, using a pointer so vars can 'share' signals for COA
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boost::shared_ptr<validate_signal_t> mValidateSignal;
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//COA stuff:
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bool mIsCOA; //To have COA connection set.
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bool mIsCOAParent; //if true, use if settingsperaccount is false.
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LLControlVariable *mCOAConnectedVar;//Because the two vars refer to eachother, LLPointer would be a circular refrence..
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public:
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LLControlVariable(const std::string& name, eControlType type,
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LLSD initial, const std::string& comment,
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bool persist = true, bool hidefromsettingseditor = false, bool IsCOA = false);
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virtual ~LLControlVariable();
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const std::string& getName() const { return mName; }
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const std::string& getComment() const { return mComment; }
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eControlType type() const { return mType; }
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bool isType(eControlType tp) const { return tp == mType; }
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void resetToDefault(bool fire_signal = false);
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commit_signal_t* getSignal() { return mCommitSignal.get(); } // shorthand for commit signal
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commit_signal_t* getCommitSignal() { return mCommitSignal.get(); }
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validate_signal_t* getValidateSignal() { return mValidateSignal.get(); }
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bool isDefault() { return (mValues.size() == 1); }
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bool isSaveValueDefault();
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bool isPersisted() { return mPersist; }
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bool isHiddenFromSettingsEditor() { return mHideFromSettingsEditor; }
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LLSD get() const { return getValue(); }
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LLSD getValue() const { return mValues.back(); }
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LLSD getDefault() const { return mValues.front(); }
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LLSD getSaveValue() const;
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void set(const LLSD& val) { setValue(val); }
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void setValue(const LLSD& value, bool saved_value = TRUE);
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void setDefaultValue(const LLSD& value);
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void setPersist(bool state);
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void setHiddenFromSettingsEditor(bool hide);
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void setComment(const std::string& comment);
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void firePropertyChanged()
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{
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(*mCommitSignal)(this,mValues.back());
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}
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//COA stuff
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bool isCOA() const { return mIsCOA; }
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bool isCOAParent() const { return mIsCOAParent; }
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LLControlVariable *getCOAConnection() const { return mCOAConnectedVar; }
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LLControlVariable* getCOAActive();
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LLControlVariable const* getCOAActive() const;
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void setIsCOA(bool IsCOA) { mIsCOA=IsCOA; }
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void setCOAConnect(LLControlVariable *pConnect, bool IsParent)
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{
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mIsCOAParent=IsParent;
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mCOAConnectedVar=pConnect;
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if(!IsParent)
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{
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mCommitSignal = pConnect->mCommitSignal; //Share a single signal.
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mValidateSignal = pConnect->mValidateSignal;
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}
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}
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#ifdef PROF_CTRL_CALLS
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public:
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U32 mLookupCount;
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#endif //PROF_CTRL_CALLS
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private:
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LLSD getComparableValue(const LLSD& value);
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bool llsd_compare(const LLSD& a, const LLSD & b);
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};
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typedef LLPointer<LLControlVariable> LLControlVariablePtr;
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//! Helper functions for converting between static types and LLControl values
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template <class T>
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eControlType get_control_type()
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{
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llwarns << "Usupported control type: " << typeid(T).name() << "." << llendl;
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return TYPE_COUNT;
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}
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template <class T>
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LLSD convert_to_llsd(const T& in)
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{
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// default implementation
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return LLSD(in);
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}
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template <class T>
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T convert_from_llsd(const LLSD& sd, eControlType type, const std::string& control_name)
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{
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// needs specialization
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return T(sd);
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}
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//const U32 STRING_CACHE_SIZE = 10000;
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class LLControlGroup : public LLInstanceTracker<LLControlGroup, std::string>
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{
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LOG_CLASS(LLControlGroup);
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protected:
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typedef std::map<std::string, LLControlVariablePtr > ctrl_name_table_t;
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ctrl_name_table_t mNameTable;
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std::set<std::string> mWarnings;
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std::string mTypeString[TYPE_COUNT];
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eControlType typeStringToEnum(const std::string& typestr);
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std::string typeEnumToString(eControlType typeenum);
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std::set<std::string> mIncludedFiles; //To prevent perpetual recursion.
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public:
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LLControlGroup(const std::string& name);
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~LLControlGroup();
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void cleanup();
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typedef LLInstanceTracker<LLControlGroup, std::string>::instance_iter instance_iter;
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LLControlVariable* getControl(std::string const& name);
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LLControlVariable const* getControl(std::string const& name) const;
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struct ApplyFunctor
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{
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virtual ~ApplyFunctor() {};
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virtual void apply(const std::string& name, LLControlVariable* control) = 0;
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};
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void applyToAll(ApplyFunctor* func);
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BOOL declareControl(const std::string& name, eControlType type, const LLSD initial_val, const std::string& comment, BOOL persist, BOOL hidefromsettingseditor = FALSE, bool IsCOA = false);
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BOOL declareU32(const std::string& name, U32 initial_val, const std::string& comment, BOOL persist = TRUE);
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BOOL declareS32(const std::string& name, S32 initial_val, const std::string& comment, BOOL persist = TRUE);
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BOOL declareF32(const std::string& name, F32 initial_val, const std::string& comment, BOOL persist = TRUE);
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BOOL declareBOOL(const std::string& name, BOOL initial_val, const std::string& comment, BOOL persist = TRUE);
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BOOL declareString(const std::string& name, const std::string &initial_val, const std::string& comment, BOOL persist = TRUE);
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BOOL declareVec3(const std::string& name, const LLVector3 &initial_val,const std::string& comment, BOOL persist = TRUE);
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BOOL declareVec3d(const std::string& name, const LLVector3d &initial_val, const std::string& comment, BOOL persist = TRUE);
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BOOL declareRect(const std::string& name, const LLRect &initial_val, const std::string& comment, BOOL persist = TRUE);
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BOOL declareColor4(const std::string& name, const LLColor4 &initial_val, const std::string& comment, BOOL persist = TRUE);
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BOOL declareColor3(const std::string& name, const LLColor3 &initial_val, const std::string& comment, BOOL persist = TRUE);
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BOOL declareLLSD(const std::string& name, const LLSD &initial_val, const std::string& comment, BOOL persist = TRUE);
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std::string findString(const std::string& name);
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std::string getString(const std::string& name) const;
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std::string getText(const std::string& name);
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BOOL getBOOL(const std::string& name);
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S32 getS32(const std::string& name);
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F32 getF32(const std::string& name);
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U32 getU32(const std::string& name);
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LLWString getWString(const std::string& name);
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LLVector3 getVector3(const std::string& name);
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LLVector3d getVector3d(const std::string& name);
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LLRect getRect(const std::string& name);
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LLSD getLLSD(const std::string& name);
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// Note: If an LLColor4U control exists, it will cast it to the correct
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// LLColor4 for you.
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LLColor4 getColor(const std::string& name);
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LLColor4 getColor4(const std::string& name);
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LLColor3 getColor3(const std::string& name);
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// generic getter
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template<typename T> T get(const std::string& name) const
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{
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const LLControlVariable* control = getControl(name);
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LLSD value;
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eControlType type = TYPE_COUNT;
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if (control)
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{
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value = control->get();
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type = control->type();
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}
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else
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{
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llwarns << "Control " << name << " not found." << llendl;
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return T();
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}
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return convert_from_llsd<T>(value, type, name);
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}
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void setBOOL(const std::string& name, BOOL val);
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void setS32(const std::string& name, S32 val);
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void setF32(const std::string& name, F32 val);
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void setU32(const std::string& name, U32 val);
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void setString(const std::string& name, const std::string& val);
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void setVector3(const std::string& name, const LLVector3 &val);
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void setVector3d(const std::string& name, const LLVector3d &val);
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void setRect(const std::string& name, const LLRect &val);
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void setColor4(const std::string& name, const LLColor4 &val);
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void setColor3(const std::string& name, const LLColor3 &val);
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void setLLSD(const std::string& name, const LLSD& val);
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// type agnostic setter that takes LLSD
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void setUntypedValue(const std::string& name, const LLSD& val);
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// generic setter
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template<typename T> void set(const std::string& name, const T& val)
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{
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LLControlVariable* control = getControl(name);
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if (control && control->isType(get_control_type<T>()))
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{
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control->set(convert_to_llsd(val));
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}
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else
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{
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llwarns << "Invalid control " << name << llendl;
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}
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}
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BOOL controlExists(const std::string& name) const;
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// Returns number of controls loaded, 0 if failed
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// If require_declaration is false, will auto-declare controls it finds
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// as the given type.
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U32 loadFromFileLegacy(const std::string& filename, BOOL require_declaration = TRUE, eControlType declare_as = TYPE_STRING);
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U32 saveToFile(const std::string& filename, BOOL nondefault_only);
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U32 loadFromFile(const std::string& filename, bool default_values = false, bool save_values = true);
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void resetToDefaults();
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// Ignorable Warnings
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// Add a config variable to be reset on resetWarnings()
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LLControlVariable *addWarning(const std::string& name);
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BOOL getWarning(const std::string& name);
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void setWarning(const std::string& name, BOOL val);
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// Resets all ignorables
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void resetWarnings();
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//COA stuff
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void connectToCOA(LLControlVariable *pConnecter, const std::string& name, eControlType type, const LLSD initial_val, const std::string& comment, BOOL persist);
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void connectCOAVars(LLControlGroup &OtherGroup);
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void updateCOASetting(bool coa_enabled);
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bool handleCOASettingChange(const LLSD& newvalue);
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#ifdef PROF_CTRL_CALLS
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void updateLookupMap(ctrl_name_table_t::const_iterator iter) const;
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#endif //PROF_CTRL_CALLS
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};
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//! Publish/Subscribe object to interact with LLControlGroups.
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//! Use an LLCachedControl instance to connect to a LLControlVariable
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//! without have to manually create and bind a listener to a local
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//! object.
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template <class T>
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class LLControlCache : public LLRefCount, public LLInstanceTracker<LLControlCache<T>, std::string>
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{
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public:
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// This constructor will declare a control if it doesn't exist in the contol group
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LLControlCache(LLControlGroup& group,
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const std::string& name,
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const T& default_value,
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const std::string& comment)
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: LLInstanceTracker<LLControlCache<T>, std::string >(name)
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{
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if(!group.controlExists(name))
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{
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//llerrs << "Control named " << name << " not found." << llendl;
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if(!declareTypedControl(group, name, default_value, comment))
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{
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llerrs << "The control could not be created!!!" << llendl;
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}
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}
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bindToControl(group, name);
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}
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LLControlCache(LLControlGroup& group,
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const std::string& name)
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: LLInstanceTracker<LLControlCache<T>, std::string >(name)
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{
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if(!group.controlExists(name))
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{
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llerrs << "Control named " << name << " not found." << llendl;
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}
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bindToControl(group, name);
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}
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~LLControlCache()
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{
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}
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const T& getValue() const { return mCachedValue; }
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void setTypeValue(const T& v) { mControl->set(convert_to_llsd(v)); }
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private:
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void bindToControl(LLControlGroup& group, const std::string& name)
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{
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LLControlVariablePtr controlp = group.getControl(name);
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mType = controlp->type();
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mCachedValue = convert_from_llsd<T>(controlp->get(), mType, name);
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// Add a listener to the controls signal...
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// and store the connection...
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mConnection = controlp->getSignal()->connect(
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boost::bind(&LLControlCache<T>::handleValueChange, this, _2),
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boost::signals2::at_front //make sure cachedctrl slots are inserted before anything else.
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);
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mType = controlp->type();
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mControl = controlp;
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}
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bool declareTypedControl(LLControlGroup& group,
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const std::string& name,
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const T& default_value,
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const std::string& comment)
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{
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LLSD init_value;
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eControlType type = get_control_type<T>();
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init_value = convert_to_llsd(default_value);
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if(type < TYPE_COUNT)
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{
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group.declareControl(name, type, init_value, comment, FALSE);
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return true;
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}
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return false;
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}
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bool handleValueChange(const LLSD& newvalue)
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{
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mCachedValue = convert_from_llsd<T>(newvalue, mType, "");
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return true;
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}
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private:
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T mCachedValue;
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LLPointer<LLControlVariable> mControl; //Hold a pointer to the control so setters are possible in cachedctrl
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eControlType mType;
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boost::signals2::scoped_connection mConnection;
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};
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template <typename T>
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class LLCachedControl
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{
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public:
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LLCachedControl(const std::string& name,
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const T& default_value,
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const std::string& comment = "Declared In Code")
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{
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mCachedControlPtr = LLControlCache<T>::getInstance(name);
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if (mCachedControlPtr.isNull())
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{
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mCachedControlPtr = new LLControlCache<T>(gSavedSettings, name, default_value, comment);
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}
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}
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LLCachedControl(const std::string& name)
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{
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mCachedControlPtr = LLControlCache<T>::getInstance(name);
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if (mCachedControlPtr.isNull())
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{
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mCachedControlPtr = new LLControlCache<T>(gSavedSettings, name);
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}
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}
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LLCachedControl(LLControlGroup& group,
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const std::string& name,
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const T& default_value,
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const std::string& comment = "Declared In Code")
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{
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mCachedControlPtr = LLControlCache<T>::getInstance(name);
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if (mCachedControlPtr.isNull())
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{
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mCachedControlPtr = new LLControlCache<T>(group, name, default_value, comment);
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}
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}
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LLCachedControl(LLControlGroup& group,
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const std::string& name)
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|
{
|
|
mCachedControlPtr = LLControlCache<T>::getInstance(name);
|
|
if (mCachedControlPtr.isNull())
|
|
{
|
|
mCachedControlPtr = new LLControlCache<T>(group, name);
|
|
}
|
|
}
|
|
|
|
operator const T&() const { return mCachedControlPtr->getValue(); }
|
|
operator boost::function<const T&()> () const { return boost::function<const T&()>(*this); }
|
|
const T& operator()() const { return mCachedControlPtr->getValue(); }
|
|
/* Sometimes implicit casting doesn't work.
|
|
For instance, something like "LLCachedControl<LLColor4> color("blah",LLColor4()); color.getValue();"
|
|
will not compile as it will look for the function getValue() in LLCachedControl, which doesn't exist.
|
|
Use 'color.get().getValue()' instead if something like this happens.
|
|
|
|
Manually casting to (const T) would work too, but it's ugly and requires knowledge of LLCachedControl's internals
|
|
*/
|
|
const T &get() const { return mCachedControlPtr->getValue(); }
|
|
|
|
LLCachedControl& operator =(const T& newvalue)
|
|
{
|
|
mCachedControlPtr->setTypeValue(newvalue);
|
|
return *this;
|
|
}
|
|
|
|
private:
|
|
LLPointer<LLControlCache<T> > mCachedControlPtr;
|
|
};
|
|
|
|
template <> eControlType get_control_type<U32>();
|
|
template <> eControlType get_control_type<S32>();
|
|
template <> eControlType get_control_type<F32>();
|
|
template <> eControlType get_control_type<bool>();
|
|
// Yay BOOL, its really an S32.
|
|
//template <> eControlType get_control_type<BOOL> ()
|
|
template <> eControlType get_control_type<std::string>();
|
|
template <> eControlType get_control_type<LLVector3>();
|
|
template <> eControlType get_control_type<LLVector3d>();
|
|
template <> eControlType get_control_type<LLRect>();
|
|
template <> eControlType get_control_type<LLColor4>();
|
|
template <> eControlType get_control_type<LLColor3>();
|
|
template <> eControlType get_control_type<LLSD>();
|
|
|
|
template <> LLSD convert_to_llsd<U32>(const U32& in);
|
|
template <> LLSD convert_to_llsd<LLVector3>(const LLVector3& in);
|
|
template <> LLSD convert_to_llsd<LLVector3d>(const LLVector3d& in);
|
|
template <> LLSD convert_to_llsd<LLRect>(const LLRect& in);
|
|
template <> LLSD convert_to_llsd<LLColor4>(const LLColor4& in);
|
|
template <> LLSD convert_to_llsd<LLColor3>(const LLColor3& in);
|
|
|
|
template<> std::string convert_from_llsd<std::string>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> LLWString convert_from_llsd<LLWString>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> LLVector3 convert_from_llsd<LLVector3>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> LLVector3d convert_from_llsd<LLVector3d>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> LLRect convert_from_llsd<LLRect>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> bool convert_from_llsd<bool>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> S32 convert_from_llsd<S32>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> F32 convert_from_llsd<F32>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> U32 convert_from_llsd<U32>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> LLColor3 convert_from_llsd<LLColor3>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> LLColor4 convert_from_llsd<LLColor4>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
template<> LLSD convert_from_llsd<LLSD>(const LLSD& sd, eControlType type, const std::string& control_name);
|
|
|
|
//#define TEST_CACHED_CONTROL 1
|
|
#ifdef TEST_CACHED_CONTROL
|
|
void test_cached_control();
|
|
#endif // TEST_CACHED_CONTROL
|
|
#endif
|