src/main/beos/SDL_BeApp.cc
author Sam Lantinga <slouken@libsdl.org>
Wed, 01 Feb 2006 06:32:25 +0000
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Updated copyright information and removed rcs id lines (problematic in branch merges) I batch edited these files, so please let me know if I've accidentally removed anybody's credit here.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2006 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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/* Handle the BeApp specific portions of the application */
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#include <AppKit.h>
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#include <storage/Path.h>
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#include <storage/Entry.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "SDL_BeApp.h"
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#include "SDL_thread.h"
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#include "SDL_timer.h"
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#include "SDL_error.h"
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/* Flag to tell whether or not the Be application is active or not */
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int SDL_BeAppActive = 0;
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static SDL_Thread *SDL_AppThread = NULL;
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static int StartBeApp(void *unused)
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{
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	BApplication *App;
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	App = new BApplication("application/x-SDL-executable");
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	App->Run();
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	delete App;
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	return(0);
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}
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/* Initialize the Be Application, if it's not already started */
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int SDL_InitBeApp(void)
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{
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	/* Create the BApplication that handles appserver interaction */
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	if ( SDL_BeAppActive <= 0 ) {
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		SDL_AppThread = SDL_CreateThread(StartBeApp, NULL);
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		if ( SDL_AppThread == NULL ) {
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			SDL_SetError("Couldn't create BApplication thread");
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			return(-1);
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		}
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		/* Change working to directory to that of executable */
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		app_info info;
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		if (B_OK == be_app->GetAppInfo(&info)) {
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			entry_ref ref = info.ref;
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			BEntry entry;
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			if (B_OK == entry.SetTo(&ref)) {
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				BPath path;
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				if (B_OK == path.SetTo(&entry)) {
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					if (B_OK == path.GetParent(&path)) {
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						chdir(path.Path());
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					}
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				}
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			}
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		}	
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		do {
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			SDL_Delay(10);
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		} while ( (be_app == NULL) || be_app->IsLaunching() );
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		/* Mark the application active */
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		SDL_BeAppActive = 0;
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	}
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	/* Increment the application reference count */
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	++SDL_BeAppActive;
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	/* The app is running, and we're ready to go */
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	return(0);
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}
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/* Quit the Be Application, if there's nothing left to do */
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void SDL_QuitBeApp(void)
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{
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	/* Decrement the application reference count */
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	--SDL_BeAppActive;
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	/* If the reference count reached zero, clean up the app */
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	if ( SDL_BeAppActive == 0 ) {
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		if ( SDL_AppThread != NULL ) {
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			if ( be_app != NULL ) { /* Not tested */
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				be_app->PostMessage(B_QUIT_REQUESTED);
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			}
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			SDL_WaitThread(SDL_AppThread, NULL);
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			SDL_AppThread = NULL;
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		}
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		/* be_app should now be NULL since be_app has quit */
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	}
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}