254 lines
7.2 KiB
C
254 lines
7.2 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these librararies and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: Destroy.c /main/12 1996/03/18 14:08:16 cde-hal $ */
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/************************************<+>*************************************
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****************************************************************************
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**
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** File: Destroy.c
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**
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** Project: Cde Help System
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**
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** Description: This code frees the information associated with
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** a Display Area.
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**
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** (c) Copyright 1987, 1988, 1989, 1990, 1991, 1992 Hewlett-Packard Company
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**
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** (c) Copyright 1993, 1994 Hewlett-Packard Company
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** (c) Copyright 1993, 1994 International Business Machines Corp.
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** (c) Copyright 1993, 1994 Sun Microsystems, Inc.
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** (c) Copyright 1993, 1994 Novell, Inc.
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****************************************************************************
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************************************<+>*************************************/
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/*
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* system includes
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*/
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#include <stdlib.h>
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#include <X11/Xatom.h>
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/*
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* Canvas Engine
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*/
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#include "CanvasP.h"
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/*
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* private includes
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*/
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#include "DisplayAreaP.h"
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#include "CallbacksI.h"
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#include "DestroyI.h"
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#include "FontI.h"
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#include "GraphicsI.h"
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#include "HyperTextI.h"
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#include "StringFuncsI.h"
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#ifdef NLS16
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#endif
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/******** Private Function Declarations ********/
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/******** End Public Function Declarations ********/
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/******************************************************************************
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*
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* These are the public routines available.
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*
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*****************************************************************************/
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/*********************************************************************
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* Function: _DtHelpDisplayAreaClean
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*
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* _DtHelpDisplayAreaClean deallocates all paragraph, font, and
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* graphic information associated with it.
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*
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*********************************************************************/
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void
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_DtHelpDisplayAreaClean (XtPointer client_data)
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{
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int n;
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Arg args[5];
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Atom xa_primary = XA_PRIMARY;
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DtHelpDispAreaStruct *pDAS = (DtHelpDispAreaStruct *) client_data;
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/*
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* remove the selection if necessary
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*/
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_DtHelpLoseSelectionCB (pDAS->dispWid, &xa_primary);
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/*
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* clean the canvas
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*/
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if (NULL != pDAS->canvas)
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_DtCanvasClean (pDAS->canvas);
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/*
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* clean the slate
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*/
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if (XtIsRealized (pDAS->dispWid))
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XClearArea(XtDisplay(pDAS->dispWid), XtWindow(pDAS->dispWid),
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pDAS->decorThickness, pDAS->decorThickness,
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pDAS->dispUseWidth, pDAS->dispUseHeight, False);
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pDAS->toc_flag &= ~(_DT_HELP_TOC_ON);
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/*
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* reset any scrollbars that are managed.
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*/
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n = 0;
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XtSetArg (args[n], XmNvalue , 0); ++n;
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XtSetArg (args[n], XmNsliderSize , 1); ++n;
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XtSetArg (args[n], XmNmaximum , 1); ++n;
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XtSetArg (args[n], XmNpageIncrement, 1); ++n;
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if (pDAS->vertScrollWid && XtIsManaged (pDAS->vertScrollWid))
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XtSetValues (pDAS->vertScrollWid, args, n);
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if (pDAS->horzScrollWid && XtIsManaged (pDAS->horzScrollWid))
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XtSetValues (pDAS->horzScrollWid, args, n);
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} /* End _DtHelpDisplayAreaClean */
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/*********************************************************************
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* Function: _DtHelpDisplayAreaDestroyCB
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*
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* _DtHelpDisplayAreaDestroyCB deallocates all information
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* associated with it.
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*
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*********************************************************************/
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void
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_DtHelpDisplayAreaDestroyCB (
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Widget w,
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XtPointer client_data,
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XtPointer call_data)
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{
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int i;
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long strIdx;
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XrmName xrmList[_DtHelpFontQuarkNumber];
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Display *dpy;
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DtHelpDispAreaStruct *pDAS = (DtHelpDispAreaStruct *) client_data;
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Boolean usedDef = False;
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/*
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* do the gross cleaning
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*/
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_DtHelpDisplayAreaClean(client_data);
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if (NULL != pDAS->canvas)
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_DtCanvasDestroy (pDAS->canvas);
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dpy = XtDisplay(pDAS->dispWid);
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/*
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* Free the gc's
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*/
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XFreeGC (dpy, pDAS->normalGC);
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XFreeGC (dpy, pDAS->pixmapGC);
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XFreeGC (dpy, pDAS->invertGC);
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if (pDAS->def_pix != 0 &&
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XmDestroyPixmap(XDefaultScreenOfDisplay(dpy), pDAS->def_pix) == False)
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XFreePixmap(dpy, pDAS->def_pix);
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if (pDAS->context != NULL)
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{
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_DtGrDestroyContext(pDAS->context);
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XtFree((char *) pDAS->context);
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}
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/*
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* destroy the widgets.
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*/
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XtDestroyWidget(pDAS->dispWid);
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if (pDAS->horzScrollWid != NULL)
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XtDestroyWidget(pDAS->horzScrollWid);
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if (pDAS->vertScrollWid != NULL)
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XtDestroyWidget(pDAS->vertScrollWid);
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/*
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* free the special characters
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*/
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if (pDAS->spc_chars != NULL)
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free ((char *) pDAS->spc_chars);
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/*
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* free the font info.
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*/
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_DtHelpGetStringQuarks(xrmList);
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if (__DtHelpFontIndexGet(pDAS, xrmList, &strIdx) != 0)
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usedDef = True;
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if (pDAS->font_info.def_font_db != NULL)
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XrmDestroyDatabase(pDAS->font_info.def_font_db);
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if (pDAS->font_info.font_idx_db != NULL)
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XrmDestroyDatabase(pDAS->font_info.font_idx_db);
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if (pDAS->font_info.exact_fonts != NULL)
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{
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_DtHelpCeFreeStringArray(pDAS->font_info.exact_fonts);
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free(pDAS->font_info.exact_idx);
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}
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if (pDAS->font_info.font_structs != NULL)
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{
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/*
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* if the string index is a positive number, this
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* indicates that the string font is a font not
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* a font set and it wouldn't be freed in this
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* routine.
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*/
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for (i = 0; i < pDAS->font_info.struct_cnt; i++)
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{
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if (usedDef == True || i != strIdx)
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XFreeFont(dpy, pDAS->font_info.font_structs[i]);
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}
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free(pDAS->font_info.font_structs);
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}
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if (pDAS->font_info.font_sets != NULL)
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{
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/*
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* if the string index is a negative number, this turns
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* it to positive and the tests will succeed.
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*
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* if the string index was a font not a fontset, then
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* this will turn the value negative and the test
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* will never succeed.
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*/
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strIdx = (-strIdx) - 1;
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for (i = 0; i < pDAS->font_info.set_cnt; i++)
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{
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if (usedDef == True || i != strIdx)
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XFreeFontSet(dpy, pDAS->font_info.font_sets[i]);
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}
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free(pDAS->font_info.font_sets);
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free(pDAS->font_info.fs_metrics);
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}
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/*
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* free the locale dependant information
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*/
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if (NULL != pDAS->cant_begin_chars)
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free (pDAS->cant_begin_chars);
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if (NULL != pDAS->cant_end_chars)
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free (pDAS->cant_end_chars);
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/*
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* destroy the display area pointer
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*/
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XtFree ((char *) pDAS);
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} /* End DtHelpDisplayAreaDestroy */
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