253 lines
6.7 KiB
C
253 lines
6.7 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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/************************************<+>*************************************
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****************************************************************************
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**
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** File: WmMarquee.c
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**
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** RCS: $XConsortium: WmMarquee.c /main/4 1995/10/26 15:12:59 rswiston $
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**
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** Project: DT Workspace Manager
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**
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** Description: Get Marquee Selection Data
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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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#include <stdio.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <Tt/tttk.h>
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#include <Dt/Wsm.h>
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#include <Dt/WsmM.h>
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#include "WsmP.h"
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#include <Dt/Service.h>
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#include <Xm/Xm.h>
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/*************************************<->*************************************
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*
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* Tt_callback_action _WsSelectionCB (Tt_message m, Tt_pattern p)
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*
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*
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* Description:
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* -----------
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* Internal function called for a marquee selection
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*
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*
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* Inputs:
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* ------
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* m - ToolTalk message
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* p - ToolTalk pattern
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*
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* Outputs:
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* --------
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* Return - ToolTalk callback status
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*
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* Comments:
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* ---------
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*
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*************************************<->***********************************/
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static Tt_callback_action
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_WsSelectionCB (Tt_message m, Tt_pattern p)
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{
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struct _DtWsmCBContext *pCbCtx;
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int type, val;
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Position x, y;
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Dimension width, height;
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Widget widget;
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DtWsmMarqueeSelectionProc marquee_selection;
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XtPointer client_data;
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/*
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* user data 0: Widget widget;
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* user data 1: DtWsmWsModifiedProc ws_modify;
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* user data 2: XtPointer client_data;
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*/
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widget = (Widget)tt_pattern_user(p, 0);
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marquee_selection = (DtWsmMarqueeSelectionProc)tt_pattern_user(p, 1);
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client_data = (XtPointer)tt_pattern_user(p, 2);
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/*
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* 0th arg: screen number, string, not used
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*/
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tt_message_arg_ival(m, 1, &type); /* type */
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tt_message_arg_ival(m, 2, &val); /* x */
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x = val;
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tt_message_arg_ival(m, 3, &val); /* y */
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y = val;
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tt_message_arg_ival(m, 4, &val); /* width */
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width = val;
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tt_message_arg_ival(m, 5, &val); /* height */
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height = val;
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/*
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* Call registered callback function.
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*/
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(*marquee_selection)(widget, type, x, y, width, height, client_data);
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return TT_CALLBACK_PROCESSED;
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} /* END OF FUNCTION _DtWsmWsModifyHandler */
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/*************************************<->*************************************
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*
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* DtWsmCBContext * DtWsmAddMarqueeSelectionCallback (widget,
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* marquee_select,
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* client_data)
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*
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*
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* Description:
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* -----------
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* Register a function to be called when a marquee selection is made
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*
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*
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* Inputs:
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* ------
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* widget - widget for this client
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* marquee_select - function to call for marquee select
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* client_data - additional data to pass back to client when called.
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*
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* Outputs:
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* --------
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* Return - ptr to callback context data (opaque)
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*
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* Comments:
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* ---------
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* The callback context data ptr should be saved if you intend to
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* removed this callback at some point in the future.
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*
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*************************************<->***********************************/
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DtWsmCBContext
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_DtWsmAddMarqueeSelectionCallback (
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Widget widget,
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DtWsmMarqueeSelectionProc marquee_selection,
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XtPointer client_data)
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{
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struct _DtWsmCBContext *pCbCtx;
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int screen;
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String sName;
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char sNum[32];
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Tt_status status;
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Tt_pattern pattern;
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char * sessId;
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/*
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* This function register a ToolTalk pattern for every
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* callback added.
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*/
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_DtSvcInitToolTalk(widget);
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pattern = tt_pattern_create();
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status = tt_ptr_error(pattern);
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if (status != TT_OK) {
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return NULL;
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}
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if (tt_pattern_category_set(pattern, TT_OBSERVE) != TT_OK) {
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return NULL;
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}
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if (tt_pattern_scope_add(pattern, TT_SESSION) != TT_OK) {
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return NULL;
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}
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sessId = tt_default_session();
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if (tt_pattern_session_add(pattern, sessId) != TT_OK) {
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return NULL;
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}
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tt_free(sessId);
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screen = XScreenNumberOfScreen(XtScreen(widget));
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sprintf(sNum, "%d", screen);
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sName = _DtWsmSelectionNameForScreen (screen);
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/*
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* Only receive DtMarquee_Selection notice from the screen
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* we registered with.
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*/
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status = tt_pattern_arg_add(pattern, TT_IN, Tttk_string, sNum);
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if (status != TT_OK) {
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return NULL;
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}
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if (tt_pattern_op_add(pattern, "DtMarquee_Selection") != TT_OK) {
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return NULL;
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}
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if (tt_pattern_state_add(pattern, TT_SENT) != TT_OK) {
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return NULL;
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}
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/*
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* Store information needed by the callback in the user data
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* fields of the pattern.
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*/
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status = tt_pattern_user_set(pattern, 0, (void *)widget);
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if (status != TT_OK) {
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return NULL;
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}
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status = tt_pattern_user_set(pattern, 1, (void *)marquee_selection);
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if (status != TT_OK) {
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return NULL;
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}
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status = tt_pattern_user_set(pattern, 2, (void *)client_data);
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if (status != TT_OK) {
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return NULL;
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}
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/*
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* _WsSelectionCB is the ToolTalk callback which will call
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* the user callback.
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*/
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if (tt_pattern_callback_add(pattern, _WsSelectionCB) != TT_OK) {
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return NULL;
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}
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if (tt_pattern_register(pattern) != TT_OK) {
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return NULL;
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}
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/*
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* Allocate data to remember stuff about this callback
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*/
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pCbCtx = (struct _DtWsmCBContext * )
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XtMalloc (sizeof(struct _DtWsmCBContext));
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/*
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* Save what we want to remember
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*/
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pCbCtx->pattern = pattern;
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pCbCtx->widget = widget;
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pCbCtx->ws_cb = marquee_selection;
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pCbCtx->client_data = client_data;
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XtFree (sName);
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return (pCbCtx);
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} /* END OF FUNCTION DtWsmAddMarqueeSelectionCallback */
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