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fbcompose(1) is an optional compositing addon for fluxbox window manager. It
augments fluxbox with a number of graphical features. Most notably, fbcompose
allows fluxbox to properly display applications that require compositing
(docky, for example), adds support for true window transparency (as opposed to
fluxbox's pseudo transparency) and provides a plugin framework to extend the
compositor's functionality.
As this is still a beta version of the compositor, the bugs are likely.
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On Windows, prepend /DUMMYPREFIX to default paths, and replace it at
runtime with the prefix relative to the exe directory.
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Prep for Windows dummy prefix code.
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'other-improvements' into windows-mingw
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Needed for mingw-cross-env
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This fixes platforms without sigaction, like Windows.
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if pos is not npos, it will always be less than filename.size().
However, the access later is only safe if there is a character
after pos, which would require pos + 1 to be less than filename.size.
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calling imlib_set_cache_size() before a context is created by fluxbox creates
an 'unknown' context. that one is never freed at shutdown.
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93924af160ea303c94a2576b0e57a04e94c9228c might corrupt memory with gcc-4.6.1 when
finishing fluxbox (clicking 'exit', sending it a SIGINT). Allthough the order, in which static / global
objects are initialized is undefined (at least between separate compilation units), the order in
which they are destroyed is well defined: in reverse order of initialization.
this means, that if 'ScreenImlibContextContainer contexts' (of ImageImlib2.cc)
gets initialized AFTER 'ImageImlib2 imlib2_loader' of Image.cc, it gets destroyed before
imlib2_loader. When that happens, ~ImageImlib2() works on a destroyed object.
(That lead to '* glibc detected * fluxbox: corrupted double-linked list: 0x0000000000dd2710 ***'
later on in 'iconv_close')
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fluxbox now properly displays windows that require ARGB visuals when
an external compositor is running. This was done by creating the
container window with the correct visual and colormap when needed.
Closes #2874629
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The idea is that connecting to a signal doesn't change it's state or the state of the object
owning the signal (even though it needs to add the functor to the list for later reference).
Emitting, on the other hand, is usually done as a result of a state change and therefore remains
non-const.
Additional benefit of this arrangement is that objects can export const references to signals to
allow connecting, while keeping the ability to emit to themselves.
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without this it wasn't possible to construct a Slot returning void from functors returning some
real value because the compiler would complain about "return statement with a value in a function
returning void".
Theoretically, this may produce some unexpected type conversions, because static_cast is slightly
stronger than implicit cast, but I judge the risk to be negligable (the alternative would be to
provide explicit specializations for slots returning void - too much typing)
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connectSlot
I do this to avoid compiler ambiguity between the two versions of connect()
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without them, gcc would compare them by converting them to bool first, which is not exactly what
one would expect. Frankly, I'm surprised it even worked without this.
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it is too easy too shoot yourself in the foot with it, other smart pointers also don't allow such
assignments. If you do want to assign to a RefCount pointer, use reset().
ps: assignment between two RefCounts remains possible, of course.
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This way we can use Commands as signal handlers out-of-the-box.
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Command offers a subset of functionality and could be completely removed at some point.
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to make it's interface more compatible with other smart pointers.
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Added some polish around them and, to mark this special occasion, moved them out of the SigImpl
namespace.
PS: This partially reverts commit 0775350fee345e37fb59835dda4d85664346b606, since I had to
reintroduce ReturnType template parameter, because it will be used in other places. But Signal classes
remain without the ReturnType, because I still cannot imagine how would it be used.
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and remove a an "almost" copy constructor (almost, because it takes a non-const reference
parameter) which was useless.
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Commit 690d926 (introduced FbTk::BidiString) broke building without
HAVE_ICONV, because of wrong variable name and use of iconv_t type.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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previously, the tracker disconnected itself only when the caller passed withTracker = true to the
leave() function. However, the default value was for the parameter was false.
Non disconnecting from signal when stopping tracking creates very dangerous situation because the
signal still holds a pointer to the tracker. This resulted in a segfault when exiting fluxbox,
because the tracker (FluxboxWindow) got destroyed before the signal (BScreen::focusedWindowSig),
and the signal was using an invalid pointer when it tried to disconnect itself from the tracker.
Instead of setting withTracker to true by default or changing all invocations of leave(), I
decided to make the tracker disconnect itself unconditionally because I could not find a use case
for the opposite behaviour.
PS: This message is in fact longer than the actual commit.
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this marks the completion of the transition to FbTk::Signal
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this way, they can be used as inputs to std::bind1st and friends
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previously they declared the parameter, but ignored the return value of the member function. I've
changed it so they pass the return value, if it is not void. MemFunSelectArg didn't have the
ReturnType template parameter, so I added it for consistency. Since I was already editing the, I
made all the operator()s const.
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- merged all the common stuff from 0,1,2,3 argument versions into one common base class
- removed ReturnType template parameter as it was instantiated with "void" everywhere and the
current ignores the return value of the callbacks anyway
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this was possible (and used) with FbTk::Subject, but the implemetation of FbTk::Signal didn't
support it, which made it impossible to continue with conversion.
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Replace CallbackHolder, FunctorHolder and SlotHolder with a (smaller) set of polymorphic classes.
SignalHolder now stores a (smart) pointer to the class.
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the previous version of operator*() made no sense. E.g., it violated the invariant
(*ptr).foo <=> ptr->foo. The dereferencing operator now returns a reference to the pointed-to
object, rather than a pointer to it.
I also added a bool conversion operator, which can be used in testing the NULL-ness of the
pointer. Anyone wondering if that could be done in a simpler way is encouraged to read
<http://www.artima.com/cppsource/safebool.html>.
And, finally, I removed the mutable flag from the m_data member, since it does not need it.
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I removed the const versions of reconfigSig() in the process since FbTk::Signal has no const
methods anyway.
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basically, i just got rid of Signal[0-3] classes and moved their contents to the appropriate
specialization of FbTk::Signal
also, this fixes the
no matching function for call to 'MemFunIgnoreArgs(FbTk::Signal<void, FbTk::SigImpl::EmptyArg,
FbTk::SigImpl::EmptyArg, FbTk::SigImpl::EmptyArg>&, void (FbTk::SigImpl::Signal0<void>::*)())'
error i had in the following commit.
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Introduces a new member function, FbWindow::cardinalProperty()
This change also changes other code that previously used
FbWindow::property() to do the same thing as the new function; this
reduces code duplication.
There are still some bits of code (Ewmh.cc, extractNetWmIcon()) that use
FbWindow::property() to retrieve XA_CARDINAL values, but as the new
method is designed for getting a _single_ property, and that code uses
FbWindow::property() to retrieve the number of values present, and then
grab all of them; it's a different use case. I opted to not try to make
cardinalProperty() into some monolithic all-purpose cardinal method;
FbWindow::property() works just fine for that.
This change also adds an optional (default=NULL) boolean to
FbWindow::textProperty and friends that allows the caller to determine
whether or not a value was actually retrieved. This was necessary for
integrating FbWindow::cardinalProperty with the codebase, and it seemed
to fit with FbWindow::textProperty as well. Prior to this change, if
you got a return value of "", you wouldn't know if you successfully
retrieved the value which happened to be blank, or if you failed to
retrieve the value. Now, you can pass the address of a boolean if you
so choose in order to differentiate these situations; the same applies
to the new FbWindow::cardinalProperty().
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likes it that way)
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