summaryrefslogtreecommitdiff
path: root/indra/llxml/llcontrol.h
blob: 6ea010f4f9f6121e7fb5625a2a36966dfd5450bb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
/** 
 * @file llcontrol.h
 * @brief A mechanism for storing "control state" for a program
 *
 * $LicenseInfo:firstyear=2001&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LL_LLCONTROL_H
#define LL_LLCONTROL_H

#include "llboost.h"
#include "llevent.h"
#include "llnametable.h"
#include "llmap.h"
#include "llstring.h"
#include "llrect.h"
#include "llrefcount.h"
#include "llinstancetracker.h"

#include "llcontrolgroupreader.h"

#include <vector>

// *NOTE: boost::visit_each<> generates warning 4675 on .net 2003
// Disable the warning for the boost includes.
#if LL_WINDOWS
# if (_MSC_VER >= 1300 && _MSC_VER < 1400)
#   pragma warning(push)
#   pragma warning( disable : 4675 )
# endif
#endif

#include <boost/bind.hpp>

#if LL_WINDOWS
	#pragma warning (push)
	#pragma warning (disable : 4263) // boost::signals2::expired_slot::what() has const mismatch
	#pragma warning (disable : 4264) 
#endif
#include <boost/signals2.hpp>
#if LL_WINDOWS
	#pragma warning (pop)
#endif

#if LL_WINDOWS
# if (_MSC_VER >= 1300 && _MSC_VER < 1400)
#   pragma warning(pop)
# endif
#endif

class LLVector3;
class LLVector3d;
class LLColor4;
class LLColor3;

const BOOL NO_PERSIST = FALSE;

typedef enum e_control_type
{
	TYPE_U32 = 0,
	TYPE_S32,
	TYPE_F32,
	TYPE_BOOLEAN,
	TYPE_STRING,
	TYPE_VEC3,
	TYPE_VEC3D,
	TYPE_RECT,
	TYPE_COL4,
	TYPE_COL3,
	TYPE_LLSD,
	TYPE_COUNT
} eControlType;

class LLControlVariable : public LLRefCount
{
	LOG_CLASS(LLControlVariable);

	friend class LLControlGroup;
	
public:
	typedef boost::signals2::signal<bool(LLControlVariable* control, const LLSD&), boost_boolean_combiner> validate_signal_t;
	typedef boost::signals2::signal<void(LLControlVariable* control, const LLSD&, const LLSD&)> commit_signal_t;

private:
	std::string		mName;
	std::string		mComment;
	eControlType	mType;
	bool			mPersist;
	bool			mHideFromSettingsEditor;
	std::vector<LLSD> mValues;
	
	commit_signal_t mCommitSignal;
	validate_signal_t mValidateSignal;
	
public:
	LLControlVariable(const std::string& name, eControlType type,
					  LLSD initial, const std::string& comment,
					  bool persist = true, bool hidefromsettingseditor = false);

	virtual ~LLControlVariable();
	
	const std::string& getName() const { return mName; }
	const std::string& getComment() const { return mComment; }

	eControlType type()		{ return mType; }
	bool isType(eControlType tp) { return tp == mType; }

	void resetToDefault(bool fire_signal = false);

	commit_signal_t* getSignal() { return &mCommitSignal; } // shorthand for commit signal
	commit_signal_t* getCommitSignal() { return &mCommitSignal; }
	validate_signal_t* getValidateSignal() { return &mValidateSignal; }

	bool isDefault() { return (mValues.size() == 1); }
	bool isSaveValueDefault();
	bool isPersisted() { return mPersist; }
	bool isHiddenFromSettingsEditor() { return mHideFromSettingsEditor; }
	LLSD get()			const	{ return getValue(); }
	LLSD getValue()		const	{ return mValues.back(); }
	LLSD getDefault()	const	{ return mValues.front(); }
	LLSD getSaveValue() const;

	void set(const LLSD& val)	{ setValue(val); }
	void setValue(const LLSD& value, bool saved_value = TRUE);
	void setDefaultValue(const LLSD& value);
	void setPersist(bool state);
	void setHiddenFromSettingsEditor(bool hide);
	void setComment(const std::string& comment);

private:
	void firePropertyChanged(const LLSD &pPreviousValue)
	{
		mCommitSignal(this, mValues.back(), pPreviousValue);
	}
	LLSD getComparableValue(const LLSD& value);
	bool llsd_compare(const LLSD& a, const LLSD & b);
};

typedef LLPointer<LLControlVariable> LLControlVariablePtr;

//! Helper functions for converting between static types and LLControl values
template <class T> 
eControlType get_control_type()
{
	llwarns << "Usupported control type: " << typeid(T).name() << "." << llendl;
	return TYPE_COUNT;
}

template <class T> 
LLSD convert_to_llsd(const T& in)
{
	// default implementation
	return LLSD(in);
}

template <class T>
T convert_from_llsd(const LLSD& sd, eControlType type, const std::string& control_name)
{
	// needs specialization
	return T(sd);
}

//const U32 STRING_CACHE_SIZE = 10000;
class LLControlGroup : public INSTANCE_TRACKER_KEYED(LLControlGroup, std::string)
{
	LOG_CLASS(LLControlGroup);

protected:
	typedef std::map<std::string, LLControlVariablePtr > ctrl_name_table_t;
	ctrl_name_table_t mNameTable;
	std::string mTypeString[TYPE_COUNT];

public:
	eControlType typeStringToEnum(const std::string& typestr);
	std::string typeEnumToString(eControlType typeenum);	

	LLControlGroup(const std::string& name);
	~LLControlGroup();
	void cleanup();
	
	typedef INSTANCE_TRACKER_KEYED(LLControlGroup, std::string)::instance_iter instance_iter;

	LLControlVariablePtr getControl(const std::string& name);

	struct ApplyFunctor
	{
		virtual ~ApplyFunctor() {};
		virtual void apply(const std::string& name, LLControlVariable* control) = 0;
	};
	void applyToAll(ApplyFunctor* func);
	
	BOOL declareControl(const std::string& name, eControlType type, const LLSD initial_val, const std::string& comment, BOOL persist, BOOL hidefromsettingseditor = FALSE);
	BOOL declareU32(const std::string& name, U32 initial_val, const std::string& comment, BOOL persist = TRUE);
	BOOL declareS32(const std::string& name, S32 initial_val, const std::string& comment, BOOL persist = TRUE);
	BOOL declareF32(const std::string& name, F32 initial_val, const std::string& comment, BOOL persist = TRUE);
	BOOL declareBOOL(const std::string& name, BOOL initial_val, const std::string& comment, BOOL persist = TRUE);
	BOOL declareString(const std::string& name, const std::string &initial_val, const std::string& comment, BOOL persist = TRUE);
	BOOL declareVec3(const std::string& name, const LLVector3 &initial_val,const std::string& comment,  BOOL persist = TRUE);
	BOOL declareVec3d(const std::string& name, const LLVector3d &initial_val, const std::string& comment, BOOL persist = TRUE);
	BOOL declareRect(const std::string& name, const LLRect &initial_val, const std::string& comment, BOOL persist = TRUE);
	BOOL declareColor4(const std::string& name, const LLColor4 &initial_val, const std::string& comment, BOOL persist = TRUE);
	BOOL declareColor3(const std::string& name, const LLColor3 &initial_val, const std::string& comment, BOOL persist = TRUE);
	BOOL declareLLSD(const std::string& name, const LLSD &initial_val, const std::string& comment, BOOL persist = TRUE);

	std::string getString(const std::string& name);
	std::string getText(const std::string& name);
	BOOL		getBOOL(const std::string& name);
	S32			getS32(const std::string& name);
	F32			getF32(const std::string& name);
	U32			getU32(const std::string& name);
	
	LLWString	getWString(const std::string& name);
	LLVector3	getVector3(const std::string& name);
	LLVector3d	getVector3d(const std::string& name);
	LLRect		getRect(const std::string& name);
	LLSD        getLLSD(const std::string& name);


	LLColor4	getColor(const std::string& name);
	LLColor4	getColor4(const std::string& name);
	LLColor3	getColor3(const std::string& name);

	// generic getter
	template<typename T> T get(const std::string& name)
	{
		LLControlVariable* control = getControl(name);
		LLSD value;
		eControlType type = TYPE_COUNT;

		if (control)		
		{
			value = control->get();
			type = control->type();
		}
		else
		{
			llwarns << "Control " << name << " not found." << llendl;
			return T();
		}
		return convert_from_llsd<T>(value, type, name);
	}

	void	setBOOL(const std::string& name, BOOL val);
	void	setS32(const std::string& name, S32 val);
	void	setF32(const std::string& name, F32 val);
	void	setU32(const std::string& name, U32 val);
	void	setString(const std::string&  name, const std::string& val);
	void	setVector3(const std::string& name, const LLVector3 &val);
	void	setVector3d(const std::string& name, const LLVector3d &val);
	void	setRect(const std::string& name, const LLRect &val);
	void	setColor4(const std::string& name, const LLColor4 &val);
	void    setLLSD(const std::string& name, const LLSD& val);

	// type agnostic setter that takes LLSD
	void	setUntypedValue(const std::string& name, const LLSD& val);

	// generic setter
	template<typename T> void set(const std::string& name, const T& val)
	{
		LLControlVariable* control = getControl(name);
	
		if (control && control->isType(get_control_type<T>()))
		{
			control->set(convert_to_llsd(val));
		}
		else
		{
			llwarns << "Invalid control " << name << llendl;
		}
	}
	
	BOOL    controlExists(const std::string& 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 std::string& filename, BOOL require_declaration = TRUE, eControlType declare_as = TYPE_STRING);
 	U32 saveToFile(const std::string& filename, BOOL nondefault_only);
 	U32	loadFromFile(const std::string& filename, bool default_values = false, bool save_values = true);
	void	resetToDefaults();
};


//! Publish/Subscribe object to interact with LLControlGroups.

//! Use 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 LLControlCache : public LLRefCount, public LLInstanceTracker<LLControlCache<T>, InstanceTrackType_LLControlCache, std::string>
{
public:
	// This constructor will declare a control if it doesn't exist in the contol group
	LLControlCache(LLControlGroup& group,
					const std::string& name, 
					const T& default_value, 
					const std::string& comment)
	:	LLInstanceTracker<LLControlCache<T>, InstanceTrackType_LLControlCache, std::string >(name)
	{
		if(!group.controlExists(name))
		{
			if(!declareTypedControl(group, name, default_value, comment))
			{
				llerrs << "The control could not be created!!!" << llendl;
			}
		}

		bindToControl(group, name);
	}

	LLControlCache(LLControlGroup& group,
					const std::string& name)
	:	LLInstanceTracker<LLControlCache<T>, InstanceTrackType_LLControlCache, std::string >(name)
	{
		if(!group.controlExists(name))
		{
			llerrs << "Control named " << name << "not found." << llendl;
		}

		bindToControl(group, name);
	}

	~LLControlCache()
	{
	}

	const T& getValue() const { return mCachedValue; }
	
private:
	void bindToControl(LLControlGroup& group, const std::string& name)
	{
		LLControlVariablePtr controlp = group.getControl(name);
		mType = controlp->type();
		mCachedValue = convert_from_llsd<T>(controlp->get(), mType, name);

		// Add a listener to the controls signal...
		mConnection = controlp->getSignal()->connect(
			boost::bind(&LLControlCache<T>::handleValueChange, this, _2)
			);
		mType = controlp->type();
	}
	bool declareTypedControl(LLControlGroup& group,
							const std::string& name, 
							 const T& default_value,
							 const std::string& comment)
	{
		LLSD init_value;
		eControlType type = get_control_type<T>();
		init_value = convert_to_llsd(default_value);
		if(type < TYPE_COUNT)
		{
			group.declareControl(name, type, init_value, comment, FALSE);
			return true;
		}
		return false;
	}

	bool handleValueChange(const LLSD& newvalue)
	{
		mCachedValue = convert_from_llsd<T>(newvalue, mType, "");
		return true;
	}

private:
    T							mCachedValue;
	eControlType				mType;
    boost::signals2::scoped_connection	mConnection;
};

template <typename T>
class LLCachedControl
{
public:
	LLCachedControl(LLControlGroup& group,
					const std::string& name,

					const T& default_value, 
					const std::string& comment = "Declared In Code")
	{
		mCachedControlPtr = LLControlCache<T>::getInstance(name);
		if (mCachedControlPtr.isNull())
		{
			mCachedControlPtr = new LLControlCache<T>(group, name, default_value, comment);
		}
	}

	LLCachedControl(LLControlGroup& group,
					const std::string& name)
	{
		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()() { return mCachedControlPtr->getValue(); }

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