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Code Issues Releases Wiki Activity

Compiling, but untested, option change notifications. Doesn't seem to affect Aegisub aversely. 

Has the limitation that one object can only subscribe once to one option value, but that shouldn't actually be a problem. (One object cannot have two different of its member functions subscribing to one option value.)

Originally committed to SVN as r4415.
This commit is contained in:
Niels Martin Hansen 2010-06-03 05:07:47 +00:00
parent 90893f1048
commit 5e8d5b221b
4 changed files with 57 additions and 13 deletions
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4
aegisub/build/libaegisub_vs2008/libaegisub_vs2008.vcproj
View File

@ -205,6 +205,10 @@
RelativePath="..\..\libaegisub\common\option.cpp"
>
</File>
<File
RelativePath="..\..\libaegisub\common\option_value.cpp"
>
</File>
<File
RelativePath="..\..\libaegisub\common\option_visit.cpp"
>

1
aegisub/libaegisub/Makefile.am
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@ -24,6 +24,7 @@ libaegisub_2_2_la_SOURCES = \
common/charset_ucd.cpp \
common/mru.cpp \
common/option.cpp \
common/option_value.cpp \
common/option_visit.cpp \
common/log.cpp \
common/validator.cpp \

41
aegisub/libaegisub/common/option_value.cpp Normal file
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@ -0,0 +1,41 @@
// Copyright (c) 2010, Niels M Hansen <nielsm@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// $Id$
/// @file option_value.cpp
/// @brief Container for holding an actual option value.
/// @ingroup libaegisub
#include "libaegisub/option_value.h"
namespace agi {
void OptionValue::NotifyChanged() {
for (ChangeListenerSet::const_iterator nfcb = listeners.begin(); nfcb != listeners.end(); ++nfcb) {
nfcb->first->*(nfcb->second);
}
}
void OptionValue::Subscribe(OptionValueListener *listener, OptionValueListener::ChangeEvent function) {
assert(listeners.find(listener) == listeners.end());
listeners[listener] = function;
}
void OptionValue::Unsubscribe(OptionValueListener *listener, OptionValueListener::ChangeEvent function) {
assert(listeners.find(listener) != listeners.end() && listeners[listener] == function);
listeners.erase(listener);
}
};

24
aegisub/libaegisub/include/libaegisub/option_value.h
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@ -20,6 +20,7 @@
#ifndef LAGI_PRE
#include <fstream>
#include <map>
#include <stdint.h>
#include "libaegisub/cajun/reader.h"
@ -48,16 +49,16 @@ class ConfigVisitor;
/// signature.
class OptionValueListener {
public:
// (I might have messed up the syntax here. It's supposed to be a pointer
// to a member function of an OptionValueListener-derived class.)
typedef void (OptionValueListener::*ChangeEvent)(const OptionValue *option);
/// @brief Type of a notification callback function for option value changes
typedef void (OptionValueListener::*ChangeEvent)(const OptionValue &option);
};
/// @class OptionValue
/// Holds an actual option.
class OptionValue {
std::set<OptionValueListener*> listeners;
typedef std::map<OptionValueListener*, OptionValueListener::ChangeEvent> ChangeListenerSet;
ChangeListenerSet listeners;
protected:
void NotifyChanged();
@ -125,11 +126,8 @@ public:
virtual void GetDefaultListBool(std::vector<bool> &out) const { throw OptionValueErrorInvalidListType("Attempt to retrive string bool from non-bool list"); }
void Subscribe(OptionValueListener*);
void Unsubscribe(OptionValueListener*);
void Subscribe(OptionValueListener *listener, OptionValueListener::ChangeEvent handler);
void Unsubscribe(OptionValueListener *listener, OptionValueListener::ChangeEvent handler);
void Subscribe(OptionValueListener *listener, OptionValueListener::ChangeEvent function);
void Unsubscribe(OptionValueListener *listener, OptionValueListener::ChangeEvent function);
};
@ -142,11 +140,11 @@ public:
OptionValue##type_name(std::string member_name, type member_value): \
value(member_value), name(member_name) {} \
type Get##type_name() const { return value; } \
void Set##type_name(const type new_val) { value = new_val; } \
void Set##type_name(const type new_val) { value = new_val; NotifyChanged(); } \
type GetDefault##type_name() const { return value_default; } \
OptionType GetType() const { return OptionValue::Type_##type_name; } \
std::string GetName() const { return name; } \
void Reset() { value = value_default; } \
void Reset() { value = value_default; NotifyChanged(); } \
bool IsDefault() const { return (value == value_default) ? 1 : 0; } \
};
@ -181,11 +179,11 @@ protected:
virtual std::string GetString() const { return "";} \
OptionValueList##type_name(std::string member_name): name(member_name) {} \
void GetList##type_name(std::vector<type> &out) const { out = array; } \
void SetList##type_name(const std::vector<type> val) { array = val;} \
void SetList##type_name(const std::vector<type> val) { array = val; NotifyChanged(); } \
void GetDefaultList##type_name(std::vector<type> &out) const { out = array_default; } \
OptionType GetType() const { return OptionValue::Type_List_##type_name; } \
std::string GetName() const { return name; } \
void Reset() { array = array_default; } \
void Reset() { array = array_default; NotifyChanged(); } \
bool IsDefault() const { return (array == array_default) ? 1 : 0; } \
};