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Aminet 31
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Aminet 31 (1999)(Schatztruhe)[!][Jun 1999].iso
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dev
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gui
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gtlayout.lha
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Source
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LT_InitExit.c
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C/C++ Source or Header
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1998-09-09
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6KB
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332 lines
/*
** GadTools layout toolkit
**
** Copyright © 1993-1998 by Olaf `Olsen' Barthel
** Freely distributable.
**
** :ts=4
*/
#ifndef _GTLAYOUT_GLOBAL_H
#include "gtlayout_global.h"
#endif
/*****************************************************************************/
#define NO !
/*****************************************************************************/
#include <exec/memory.h>
#include <libraries/locale.h>
#include <clib/alib_protos.h> /* For NewList */
#include <clib/locale_protos.h>
#include <pragmas/locale_pragmas.h>
/*****************************************************************************/
#include "Assert.h"
/*****************************************************************************/
STATIC struct LocaleBase * LocaleBase;
STATIC struct Locale * DefaultLocale;
/*****************************************************************************/
/****** gtlayout.library/LT_Init ******************************************
*
* NAME
* LT_Init -- Initialize user interface code.
*
* SYNOPSIS
* LT_Init();
*
* VOID LT_Init(VOID);
*
* FUNCTION
* You need to initialize the user interface code only once,
* so it can set up its internals, open libraries, etc.
* The code has to be initialized before any user interface
* creation can take place.
*
* NOTES
* This function is not present in the shared library, only
* in the link library. You need not and cannot invoke it in
* the shared library.
*
* SEE ALSO
* gtlayout.library/LT_Exit
*
******************************************************************************
*
*/
/*****************************************************************************/
struct LibraryInitEntry
{
BOOL MustOpen;
STRPTR Name;
struct Library ** Library;
};
struct ClassInitEntry
{
STRPTR ClassName;
LONG InstanceSize;
HOOKFUNC Dispatcher;
Class ** ClassPtr;
};
/*****************************************************************************/
BOOL LIBENT
LT_Init(VOID)
{
BOOL success = TRUE;
#ifndef LINK_LIB
{
extern struct Library __far * AbsExecBase;
SysBase = AbsExecBase;
}
#endif // LINK_LIB
if(SysBase == NULL || SysBase->lib_Version < 37)
{
success = FALSE;
}
else
{
STATIC struct LibraryInitEntry InitTable[] =
{
TRUE, "intuition.library", &IntuitionBase,
TRUE, "graphics.library", &GfxBase,
TRUE, "utility.library", &UtilityBase,
TRUE, "gadtools.library", &GadToolsBase,
TRUE, "keymap.library", &KeymapBase,
FALSE, "locale.library", (struct Library **)&LocaleBase
};
STATIC struct ClassInitEntry ClassInitTable[] =
{
IMAGECLASS,
sizeof(ImageInfo),
(HOOKFUNC)LTP_ImageDispatch,
<P_ImageClass,
#ifdef DO_LEVEL_KIND
{
GADGETCLASS,
sizeof(struct SliderClassData),
(HOOKFUNC)LTP_LevelClassDispatcher,
<P_LevelClass,
},
#endif /* DO_LEVEL_KIND */
#ifdef DO_POPUP_KIND
{
GADGETCLASS,
sizeof(PopInfo),
(HOOKFUNC)LTP_PopupClassDispatcher,
<P_PopupClass,
},
#endif /* DO_POPUP_KIND */
#ifdef DO_TAB_KIND
{
GADGETCLASS,
sizeof(TabInfo),
(HOOKFUNC)LTP_TabClassDispatcher,
<P_TabClass,
},
#endif /* DO_TAB_KIND */
};
LONG i;
V39 = (BOOLEAN)(SysBase->lib_Version >= 39);
V40 = (BOOLEAN)(SysBase->lib_Version >= 40);
InitSemaphore(<P_LockSemaphore);
NewList((struct List *)<P_LockList);
NewList((struct List *)<P_EmptyList);
#ifdef DO_PICKSHORTCUTS
{
InitSemaphore(<P_KeySemaphore);
if(!(LTP_Keys[0] = (UBYTE *)AllocMem(512,MEMF_ANY|MEMF_CLEAR)))
{
success = FALSE;
}
}
#endif /* DO_PICKSHORTCUTS */
for(i = 0 ; i < NUMELEMENTS(InitTable) ; i++)
{
(*InitTable[i].Library) = OpenLibrary(InitTable[i].Name,37);
if((*InitTable[i].Library) == NULL && InitTable[i].MustOpen)
{
success = FALSE;
}
}
if(success)
{
LTP_NumberFormat = "%ld";
LTP_DecimalPoint = ".";
if(LocaleBase != NULL)
{
/* Guaranteed to open. */
DefaultLocale = OpenLocale(NULL);
LTP_DecimalPoint = DefaultLocale->loc_DecimalPoint;
if(LocaleBase->lb_SysPatches)
LTP_NumberFormat = "%lD";
}
for(i = 0 ; i < NUMELEMENTS(ClassInitTable) ; i++)
{
(*ClassInitTable[i].ClassPtr) = MakeClass(NULL,ClassInitTable[i].ClassName,NULL,ClassInitTable[i].InstanceSize,0);
if((*ClassInitTable[i].ClassPtr) != NULL)
{
(*ClassInitTable[i].ClassPtr)->cl_Dispatcher.h_Entry = ClassInitTable[i].Dispatcher;
}
else
{
success = FALSE;
break;
}
}
}
}
if(NO success)
{
LT_Exit();
}
return(success);
}
/*****************************************************************************/
/****** gtlayout.library/LT_Exit ******************************************
*
* NAME
* LT_Exit -- Clean up user interface allocations
*
* SYNOPSIS
* LT_Exit();
*
* VOID LT_Exit(VOID);
*
* FUNCTION
* When you are finished with user interface creation and
* do not not need the code any more you should call this
* routine. It will free all the memory allocated by
* LT_Init(), close libraries, etc.
*
* INPUTS
* none
*
* RESULT
* none
*
* NOTES
* This function is not present in the shared library, only
* in the link library. You need not and cannot invoke it in
* the shared library.
*
* SEE ALSO
* gtlayout.library/LT_Init
*
******************************************************************************
*
*/
VOID LIBENT
LT_Exit(VOID)
{
if(SysBase != NULL && SysBase->lib_Version >= 37)
{
#ifdef DO_PICKSHORTCUTS
{
FreeMem(LTP_Keys[0],512);
LTP_Keys[0] = LTP_Keys[1] = NULL;
}
#endif
#ifdef DO_LEVEL_KIND
{
if(LTP_LevelClass)
{
FreeClass(LTP_LevelClass);
LTP_LevelClass = NULL;
}
}
#endif /* DO_LEVEL_KIND */
#ifdef DO_POPUP_KIND
{
if(LTP_PopupClass)
{
FreeClass(LTP_PopupClass);
LTP_PopupClass = NULL;
}
}
#endif // DO_POPUP_KIND
#ifdef DO_TAB_KIND
{
if(LTP_TabClass)
{
FreeClass(LTP_TabClass);
LTP_TabClass = NULL;
}
}
#endif // DO_TAB_KIND
if(LTP_ImageClass)
{
FreeClass(LTP_ImageClass);
LTP_ImageClass = NULL;
}
if(DefaultLocale)
{
CloseLocale(DefaultLocale);
DefaultLocale = NULL;
}
CloseLibrary(LocaleBase);
LocaleBase = NULL;
CloseLibrary(KeymapBase);
KeymapBase = NULL;
CloseLibrary(GadToolsBase);
GadToolsBase = NULL;
CloseLibrary(UtilityBase);
UtilityBase = NULL;
CloseLibrary(GfxBase);
GfxBase = NULL;
CloseLibrary(IntuitionBase);
IntuitionBase = NULL;
}
}