diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | sigc++/signal_base.cc | 35 | ||||
| -rw-r--r-- | sigc++/signal_base.h | 35 |
3 files changed, 77 insertions, 0 deletions
@@ -1,3 +1,10 @@ +2012-10-12 Kjell Ahlstedt <kjell.ahlstedt@bredband.net> + + signal_base: Add blocked(), block(), unblock(). + + * sigc++/signal_base.[h|cc]: Add signal_impl::blocked(), block() and + signal_base::blocked(), block(), unblock(). Bug #153780. + 2.2.11: 2012-09-20 Andris Pavenis <andris.pavenis@iki.fi> diff --git a/sigc++/signal_base.cc b/sigc++/signal_base.cc index e22017f..ed1308a 100644 --- a/sigc++/signal_base.cc +++ b/sigc++/signal_base.cc @@ -49,6 +49,24 @@ signal_impl::size_type signal_impl::size() const return slots_.size(); } +bool signal_impl::blocked() const +{ + for (const_iterator_type iter = slots_.begin(); iter != slots_.end(); ++iter) + { + if (!iter->blocked()) + return false; + } + return true; +} + +void signal_impl::block(bool should_block) +{ + for (iterator_type iter = slots_.begin(); iter != slots_.end(); ++iter) + { + iter->block(should_block); + } +} + signal_impl::iterator_type signal_impl::connect(const slot_base& slot_) { return insert(slots_.end(), slot_); @@ -117,6 +135,23 @@ signal_base::size_type signal_base::size() const return (impl_ ? impl_->size() : 0); } +bool signal_base::blocked() const +{ + return (impl_ ? impl_->blocked() : true); +} + +void signal_base::block(bool should_block) +{ + if (impl_) + impl_->block(should_block); +} + +void signal_base::unblock() +{ + if (impl_) + impl_->block(false); +} + signal_base::iterator_type signal_base::connect(const slot_base& slot_) { return impl()->connect(slot_); diff --git a/sigc++/signal_base.h b/sigc++/signal_base.h index d16ccfa..94b2096 100644 --- a/sigc++/signal_base.h +++ b/sigc++/signal_base.h @@ -97,6 +97,21 @@ struct SIGC_API signal_impl */ size_type size() const; + /** Returns whether all slots in the list are blocked. + * @return @p true if all slots are blocked or the list is empty. + */ + bool blocked() const; + + /** Sets the blocking state of all slots in the list. + * If @e should_block is @p true then the blocking state is set. + * Subsequent emissions of the signal don't invoke the functors + * contained in the slots until block() with @e should_block = @p false is called. + * sigc::slot_base::block() and sigc::slot_base::unblock() can change the + * blocking state of individual slots. + * @param should_block Indicates whether the blocking state should be set or unset. + */ + void block(bool should_block = true); + /** Adds a slot at the bottom of the list of slots. * @param slot_ The slot to add to the list of slots. * @return An iterator pointing to the new slot in the list. @@ -263,6 +278,26 @@ struct SIGC_API signal_base : public trackable */ size_type size() const; + /** Returns whether all slots in the list are blocked. + * @return @p true if all slots are blocked or the list is empty. + */ + bool blocked() const; + + /** Sets the blocking state of all slots in the list. + * If @e should_block is @p true then the blocking state is set. + * Subsequent emissions of the signal don't invoke the functors + * contained in the slots until unblock() or block() with + * @e should_block = @p false is called. + * sigc::slot_base::block() and sigc::slot_base::unblock() can change the + * blocking state of individual slots. + * @param should_block Indicates whether the blocking state should be set or unset. + */ + void block(bool should_block = true); + + /** Unsets the blocking state of all slots in the list.. + */ + void unblock(); + protected: typedef internal::signal_impl::iterator_type iterator_type; |