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/*
* File: msgwin.c
* Purpose: Implement the message box.
* Author: Lars Wirzenius
* Version: "@(#)SeX:$Id: msgwin.c,v 1.3 1996/10/16 06:34:24 liw Exp $"
*/
#include <assert.h>
#include <ctype.h>
#include <math.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/Intrinsic.h>
#include <X11/Shell.h>
#include <X11/StringDefs.h>
#include <X11/Xaw/Scrollbar.h>
#include <X11/Xaw/Form.h>
#include <X11/Xaw/Label.h>
#include <X11/Xaw/Command.h>
#include <X11/Xaw/Box.h>
#include <X11/Xaw/AsciiText.h>
#include <publib.h>
#include "msgwin.h"
#include "cmd.h"
#include "win.h"
#include "x.h"
#include "error.h"
/*
* Structure: msgwin
* Purpose: Descriptor for the message box.
* Fields: shell the top level widget for the dialog
*/
struct msgwin {
struct win *win;
Widget shell, msg, dismiss;
unsigned positioned:1;
};
/*
* Prototypes for local functions.
*/
static void delete_ep(Widget);
static void do_dismiss(Widget, XtPointer, XtPointer);
int msgwin_create(struct msgwin **ep, struct win *win) {
Widget form;
XtTranslations trans;
const int buttondist = 10;
*ep = malloc(sizeof(struct msgwin));
if (*ep == NULL) {
error(win, "malloc failed, can't create msgwin");
return -1;
}
(*ep)->win = win;
(*ep)->positioned = 0;
(*ep)->shell = XtVaCreatePopupShell("msgwin",
transientShellWidgetClass, win_toplevel(win),
XtNallowShellResize, True,
XtNinput, True,
NULL);
form = XtVaCreateManagedWidget(
"form",
formWidgetClass,
(*ep)->shell,
XtNresizable, True,
NULL);
(*ep)->msg = XtVaCreateManagedWidget(
"msg",
labelWidgetClass,
form,
XtNlabel, "Message has not been set yet (bug?)",
XtNwidth, 300,
XtNborderWidth, 0,
XtNtop, XtChainTop,
XtNbottom, XtChainTop,
XtNleft, XtChainLeft,
XtNright, XtChainRight,
NULL);
(*ep)->dismiss = XtVaCreateManagedWidget(
"dismiss",
commandWidgetClass,
form,
XtNlabel, "Dismiss",
XtNfromVert, (*ep)->msg,
XtNvertDistance, buttondist,
XtNtop, XtChainTop,
XtNbottom, XtChainTop,
XtNleft, XtChainLeft,
XtNright, XtChainLeft,
XtNinput, True,
NULL);
XtAddCallback((*ep)->dismiss, XtNcallback, do_dismiss, *ep);
trans = XtParseTranslationTable(
"<Key>Return: dismiss_message() \n"
"<Key>Escape: dismiss_message() \n");
XtOverrideTranslations((*ep)->dismiss, trans);
XtRealizeWidget((*ep)->shell);
x_set_wm_protocols((*ep)->shell, delete_ep);
XtSetKeyboardFocus((*ep)->shell, (*ep)->dismiss);
return 0;
}
void msgwin_destroy(struct msgwin *mw) {
XtDestroyWidget(mw->shell);
}
/*
* Function: msgwin_popup
* Purpose: Pop up a dialog box.
* Arguments: ep the dialog box
* Return: Nothing.
*/
void msgwin_popup(struct msgwin *ep) {
Position x, y;
Dimension width, height;
Widget top;
if (!ep->positioned) {
top = win_toplevel(ep->win);
XtVaGetValues(top, XtNwidth, &width, XtNheight, &height, NULL);
XtTranslateCoords(top, (Position) 30, (Position) 30, &x, &y);
XtVaSetValues(ep->shell, XtNx, x, XtNy, y, NULL);
ep->positioned = 1;
}
XtPopup(ep->shell, XtGrabNone);
}
/*
* Function: msgwin_popdown
* Purpose: Close a dialog box.
* Arguments: ep the dialog
* Return: Nothing.
*/
void msgwin_popdown(struct msgwin *ep) {
XtPopdown(ep->shell);
}
/*
* Function: msgwin_contains
* Purpose: Check whether a dialog contains a widget.
* Arguments: ep the dialog
* wid the widget
* Return: True or false.
*/
int msgwin_contains(struct msgwin *ep, Widget wid) {
return ep->shell == wid || ep->msg == wid || ep->dismiss == wid;
}
/*
* Function: msgwin_set
* Purpose: Set message displayed in message window.
* Arguments: mw the message window
* str the message
* Return: Nothing.
*/
void msgwin_set(struct msgwin *mw, const char *str) {
XtVaSetValues(mw->msg, XtNlabel, str, XtNwidth, 9*strlen(str), NULL);
}
/***********************************************************************
* Local functions follow.
*/
/*
* Function: delete_ep
* Purpose: React to WM_DELETE by closing the dialog box.
* Arguments: wid the widget that got WM_DELETE
* Return: Nothing.
*/
static void delete_ep(Widget wid) {
XtPopdown(wid);
}
/*
* Pop down a dialog box.
*/
static void do_dismiss(Widget w, XtPointer client_data, XtPointer foo) {
msgwin_popdown((struct msgwin *) client_data);
}
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