329 lines
7.3 KiB
C
329 lines
7.3 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: cutpaste.c /main/4 1995/10/27 10:41:39 rswiston $ */
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/*
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* (c) Copyright 1989, 1990, 1991, 1992 OPEN SOFTWARE FOUNDATION, INC.
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* ALL RIGHTS RESERVED
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*/
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/*
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* Motif Release 1.2
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*/
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/******************************************************************************
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* cutpaste.c
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*
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*
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*****************************************************************************/
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#include <stdio.h>
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#include <Xm/Xm.h>
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#include <Xm/CutPaste.h>
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#include <Mrm/MrmPublic.h>
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static Boolean CopyToClipboard(
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Time time);
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static Boolean PasteClipboard(
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Time time );
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static void PopupHandler(
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Widget w,
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Widget pw,
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XEvent *event,
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Boolean *ctd );
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static void ManageCb(
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Widget w,
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String id,
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XtPointer cb );
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static void InitPopupCb(
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Widget w,
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String id,
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XtPointer cb );
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static void CutCb(
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Widget w,
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XtPointer cd,
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XmPushButtonCallbackStruct *cb );
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static void CopyCb(
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Widget w,
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XtPointer cd,
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XmPushButtonCallbackStruct *cb );
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static void PasteCb(
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Widget w,
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XtPointer cd,
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XmPushButtonCallbackStruct *cb );
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static void ExitCb(
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Widget w,
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XtPointer cd,
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XtPointer cb );
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static MrmHierarchy mrm_id;
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static char *mrm_vec[]={"cutpaste.uid"};
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static MrmCode mrm_class;
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static MRMRegisterArg mrm_names[] = {
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{"InitPopupCb", (XtPointer)InitPopupCb },
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{"ManageCb", (XtPointer)ManageCb },
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{"CutCb", (XtPointer)CutCb },
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{"CopyCb", (XtPointer)CopyCb },
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{"PasteCb", (XtPointer)PasteCb },
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{"ExitCb", (XtPointer)ExitCb }
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};
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#define GraphFormat "MY_GRAPH_DATA"
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#define MIN(x,y) ((x) > (y) ? (y) : (x))
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static XtAppContext appContext;
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static Widget shell;
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static Widget *bars;
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static Cardinal nbars;
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int
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main(
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int argc,
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char *argv[] )
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{
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Widget app_main;
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Display *display;
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Arg args[2];
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Widget *children;
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XtToolkitInitialize();
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MrmInitialize ();
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appContext = XtCreateApplicationContext();
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display = XtOpenDisplay(appContext, NULL, argv[0], "Cutpaste",
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NULL, 0, &argc, argv);
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if (display == NULL) {
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fprintf(stderr, "%s: Can't open display\n", argv[0]);
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exit(1);
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}
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shell = XtAppCreateShell(argv[0], NULL, applicationShellWidgetClass,
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display, NULL, 0);
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if (MrmOpenHierarchy (1, mrm_vec, NULL, &mrm_id) != MrmSUCCESS) exit(0);
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MrmRegisterNames(mrm_names, XtNumber(mrm_names));
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MrmFetchWidget (mrm_id, "appMain", shell, &app_main, &mrm_class);
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XtManageChild(app_main);
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/* define graph data format */
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while (XmClipboardRegisterFormat (display, GraphFormat, 32) ==
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XmClipboardLocked) { }
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XtSetArg (args[0], XmNchildren, &children);
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XtSetArg (args[1], XmNnumChildren, &nbars);
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XtGetValues (XtNameToWidget (shell, "*graphForm"), args, 2);
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bars = (Widget *) XtMalloc (nbars * sizeof(Widget));
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memcpy (bars, children, nbars * sizeof(Widget));
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XtRealizeWidget(shell);
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XtAppMainLoop(appContext);
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}
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static void
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ManageCb(
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Widget w,
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String id,
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XtPointer cb )
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{
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XtManageChild (XtNameToWidget (shell, id));
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}
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static void
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ExitCb(
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Widget w,
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XtPointer cd,
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XtPointer cb )
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{
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exit(0);
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}
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/*****************************************************************
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*
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* PopupMenu support
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*
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*****************************************************************/
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static void
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InitPopupCb(
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Widget w,
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String id,
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XtPointer cb )
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{
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Widget popupWindow = XtNameToWidget (shell, id);
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XtAddEventHandler (popupWindow, ButtonPressMask, False,
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(XtEventHandler)PopupHandler, (XtPointer) w);
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}
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static void
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PopupHandler (
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Widget w,
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Widget pw,
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XEvent *event,
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Boolean *ctd )
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{
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if (((XButtonEvent *)event)->button != Button3) return;
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XmMenuPosition((Widget) pw, (XButtonEvent *)event);
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XtManageChild ((Widget) pw);
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}
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/*****************************************************************
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*
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* Clipboard support
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*
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*****************************************************************/
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static void
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CutCb(
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Widget w,
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XtPointer cd,
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XmPushButtonCallbackStruct *cb )
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{
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XButtonEvent *be = (XButtonEvent *)cb->event;
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Arg args[1];
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int i;
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if (CopyToClipboard(be->time) == True) {
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/* clear graph data */
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XtSetArg (args[0], XmNvalue, 0);
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for (i=0; i < nbars; i++)
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XtSetValues (bars[i], args, 1);
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}
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else {
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XBell (XtDisplay(w), 0);
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}
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}
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static void
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CopyCb(
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Widget w,
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XtPointer cd,
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XmPushButtonCallbackStruct *cb )
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{
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XButtonEvent *be = (XButtonEvent *)cb->event;
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if (CopyToClipboard(be->time) != True) {
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XBell (XtDisplay(w), 0);
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}
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}
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static void
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PasteCb(
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Widget w,
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XtPointer cd,
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XmPushButtonCallbackStruct *cb )
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{
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XButtonEvent *be = (XButtonEvent *)cb->event;
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if (PasteClipboard(be->time) != True) {
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XBell (XtDisplay(w), 0);
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}
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}
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static Boolean
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CopyToClipboard(
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Time time )
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{
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Display *dpy = XtDisplay (shell);
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Window window = XtWindow (shell);
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long itemId = 0;
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XmString clipLabel;
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long *graphData;
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int value;
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int i;
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Arg args[1];
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if (XmClipboardLock (dpy, window) == XmClipboardLocked)
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return (False);
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clipLabel = XmStringCreateLtoR ("cutpaste", XmFONTLIST_DEFAULT_TAG);
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XmClipboardStartCopy ( dpy, window, clipLabel, time, NULL, NULL, &itemId);
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/* copy graph data */
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graphData = (long *)XtMalloc (nbars * sizeof (long));
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XtSetArg (args[0], XmNvalue, &value);
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for (i=0; i < nbars; i++) {
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XtGetValues (bars[i], args, 1);
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graphData[i] = (long)value;
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}
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XmClipboardCopy (dpy, window, itemId, GraphFormat, (XtPointer)graphData,
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(nbars * sizeof(long)), 0, NULL);
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XmClipboardEndCopy (dpy, window, itemId);
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XmClipboardUnlock (dpy, window, False);
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XtFree ((char *)clipLabel);
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XtFree ((char *)graphData);
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return (True);
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}
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static Boolean
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PasteClipboard(
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Time time )
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{
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Display *dpy = XtDisplay (shell);
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Window window = XtWindow (shell);
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unsigned long length = 0;
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long *graphData;
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int i;
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int setBars;
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Arg args[1];
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if (XmClipboardStartRetrieve (dpy, window, time) == XmClipboardLocked)
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return (False);
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XmClipboardInquireLength(dpy, window, GraphFormat, &length);
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if (length == 0) {
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XmClipboardEndRetrieve (dpy, window);
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return (False);
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}
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graphData = (long *)XtMalloc (length * sizeof (long));
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XmClipboardRetrieve(dpy, window, GraphFormat, graphData, length,
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NULL, NULL);
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XmClipboardEndRetrieve(dpy, window);
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setBars = MIN (nbars, length);
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for (i = 0; i < setBars; i++) {
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XtSetArg (args[0], XmNvalue, graphData[i]);
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XtSetValues (bars[i], args, 1);
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}
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XtFree ((char *)graphData);
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return (True);
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}
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