Date: Friday October 12, 2001 @ 9:46
Author: sunshine
Update of /cvsroot/crystal/CS/apps/demosky2
In directory usw-pr-cvs1:/tmp/cvs-serv5774/apps/demosky2
Modified Files:
demosky2.cpp
Log Message:
Eric Sunshine made the following changes to the project:
-*- Added the new function csDefaultRunLoop(). This function replaces
csInitializer::MainLoop(), which was non-portable. This function
should be called by applications which do not otherwise implement
their own run-loop. The run-loop implemented by this function is
guaranteed to be portable across all application (since each platform
is given the opportunity to provide an appropriate platform-specific
implementation). Each time through the run-loop, it advances the
virtual clock and processes the Crystal Space event queue.
csDefaultRunLoop() only returns when a csevBroadcast event is posted
to the Crystal Space event queue with command code cscmdQuit. Note,
that if your application already implements its own run-loop, then you
should _not_ call this function, since it would more-or-less
permanently interrupt your own run-loop and prevent it from doing its
work. For instance, if you are adding Crystal Space to an existing
Microsoft Windows application, which already has its own run-loop to
process the Windows event queue, then do _not_ call this function.
-*- csDefaultRunLoop() is intended to be implemented by each platform in a
fashion which is appropriate for implementing run-loops on the given
platform. For instance, with Apple's Cocoa frameworks,
csDefaultRunLoop() should arrange to have the NSApplication class
implement the run-loop; with BeOS's Application Kit,
csDefaultRunLoop() should arrange to have the BApplication class
implement the run-loop; etc.
-*- A default implementation of csDefaultRunLoop() is provided in
CS/libs/cssys/general/runloop.cpp for platforms which do not otherwise
have any special run-loop needs. The default implementation, however,
is very simple-minded in that it merely advances the virtual clock and
processes the event queue until cscmdQuit is received. It is not
particularly platform-friendly since it makes no attempt to yield the
CPU, nor does it make any attempt to interact nicely with a platform's
native GUI.
-*- Implemented a platform-specific csDefaultRunLoop() for the Apple/NeXT
ports. This function is essentially a one-liner which merely asks the
NeXTAssistant (from the object registry) to invoke the
platform-specific run-loop, which is implemented by Cocoa's
NSApplication class.
-*- All other platforms currently employ the default implementation of
csDefaultRunLoop() from runloop.cpp. In the future, however, some
platforms, such as BeOS, will implement their own versions of
csDefaultRunLoop().
-*- Added new functions csPlatformStartup() and csPlatformShutdown().
These functions are called by csInitializer::Initialize() and
csInitializer::DestroyApplication(), respectively, though they can
also be called manually in cases where csInitializer is not utilized.
These functions provide hooks for platform-specific initialization and
shutdown. csPlatformStartup() and csPlatformShutdown() are intended
to be implemented by each platform in some appropriate fashion. One
common use for these functions is to publish platform-specific
"helper" objects via the shared-object registry (iObjectRegistry).
-*- Created default implementations of csPlatformStartup() and
csPlatformShutdown() in CS/libs/cssys/general/sysinit.cpp. The
default implementations of these functions do nothing.
-*- Implemented platform-specific csPlatformStartup() and
csPlatformShutdown() for the Apple/NeXT ports. These functions
publish an iNeXTAssistant with the shared-object registry.
-*- All other platforms currently employ the default implementations of
csPlatformStartup() and csPlatformShutdown() from sysinit.cpp. In the
future, however, some platforms, such as BeOS, Windows, etc., will
implement their own versions of these functions in order to publish
their platform-specific "helper" objects.
-*- The functional version of csInitializer::SetupEventHandler() now
accepts an event mask, just like the object-oriented version. It also
provides a default event mask, which includes all event types in which
the typical application is interested.
-*- With the introduction of csDefaultRunLoop(), csPlatformStartup(), and
csPlatformShutdown(), it become possible to remove _all_ code from the
Apple/NeXT csSystemDriver subclass, thus the system driver for the
Apple/NeXT ports is now _completely_ empty and can be removed (though
this will not happen until all remaining code is removed from the
csSystemDriver subclasses of the other ports, as well).
-*- Adjusted the Apple/NeXT ports to take into account all of the recent
changes to application initialization and run-loop mechanics. These
ports once again compile cleanly, and the programs run. (The only
exception is that programs which utilize the 3D renderer crash with a
BUS error on address 0x0 when the 3D renderer tries to load the 2D
canvas. I will look into this problem shortly.)
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