[comp.windows.x] twm 3.0, part 5 of 5

tlastran@esunix.UUCP (Tom LaStrange) (06/04/88)

#! /bin/sh
# This is a shell archive, meaning:
# 1.  Remove everything above the #! /bin/sh line.
# 2.  Save the resulting test in a file
# 3.  Execute the file with /bin/sh (not csh) to create the files:
#
#menus.c
#util.c
#version.c
#
# Created by tlastran (Tom LaStrange) on Fri Jun  3 11:32:50 MDT 1988
#
if test -f 'menus.c'
then
    echo shar: will not over-write existing file "menus.c"
else
echo extracting "menus.c"
sed 's/^X//' >menus.c <<'SHAR_EOF'
X/*****************************************************************************/
X/**       Copyright 1988 by Evans & Sutherland Computer Corporation,        **/
X/**                          Salt Lake City, Utah                           **/
X/**                                                                         **/
X/**                           All Rights Reserved                           **/
X/**                                                                         **/
X/**    Permission to use, copy, modify, and distribute this software and    **/
X/**    its documentation  for  any  purpose  and  without  fee is hereby    **/
X/**    granted, provided that the above copyright notice appear  in  all    **/
X/**    copies and that both  that  copyright  notice  and  this  permis-    **/
X/**    sion  notice appear in supporting  documentation,  and  that  the    **/
X/**    name  of Evans & Sutherland  not be used in advertising or publi-    **/
X/**    city pertaining to distribution  of the software without  specif-    **/
X/**    ic, written prior permission.                                        **/
X/**                                                                         **/
X/**    EVANS  & SUTHERLAND  DISCLAIMS  ALL  WARRANTIES  WITH  REGARD  TO    **/
X/**    THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILI-    **/
X/**    TY AND FITNESS, IN NO EVENT SHALL EVANS &  SUTHERLAND  BE  LIABLE    **/
X/**    FOR  ANY  SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY  DAM-    **/
X/**    AGES  WHATSOEVER RESULTING FROM  LOSS OF USE,  DATA  OR  PROFITS,    **/
X/**    WHETHER   IN  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS    **/
X/**    ACTION, ARISING OUT OF OR IN  CONNECTION  WITH  THE  USE  OR PER-    **/
X/**    FORMANCE OF THIS SOFTWARE.                                           **/
X/*****************************************************************************/
X
X/***********************************************************************
X *
X * $Header: menus.c,v 1.34 88/06/03 10:45:54 tlastran Exp $
X *
X * twm menu code
X *
X * 17-Nov-87 Thomas E. LaStrange		File created
X *
X ***********************************************************************/
X
X#ifndef lint
Xstatic char RCSinfo[] =
X"$Header: menus.c,v 1.34 88/06/03 10:45:54 tlastran Exp $";
X#endif
X
X#include <stdio.h>
X#include <signal.h>
X#include "twm.h"
X#include "gc.h"
X#include "menus.h"
X#include "events.h"
X#include "util.h"
X#include "gram.h"
X
X#include "pull.bm"
X
Xint RootFunction = NULL;
XMenuRoot *MenuList = NULL;		/* head of the menu list */
XMenuRoot *LastMenu = NULL;		/* the last menu */
XMenuRoot *ActiveMenu = NULL;		/* the active menu */
XMenuItem *ActiveItem = NULL;		/* the active menu item */
XMouseButton Mouse[MAX_BUTTONS+1][NUM_CONTEXTS][MOD_SIZE];
X 
X/***********************************************************************
X *
X *  Procedure:
X *	InitMenus - initialize menu roots
X *
X ***********************************************************************
X */
X
Xvoid
XInitMenus()
X{
X    int i, j, k;
X
X    for (i = 0; i < MAX_BUTTONS+1; i++)
X	for (j = 0; j < NUM_CONTEXTS; j++)
X	    for (k = 0; k < MOD_SIZE; k++)
X		Mouse[i][j][k].func = NULL;
X
X    Mouse[1][C_TITLE][0].func = F_RAISE;
X    Mouse[2][C_TITLE][0].func = F_MOVE;
X    Mouse[3][C_TITLE][0].func = F_LOWER;
X
X    Mouse[1][C_ICON][0].func = F_RAISE;
X    Mouse[2][C_ICON][0].func = F_MOVE;
X    Mouse[3][C_ICON][0].func = F_LOWER;
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	NewMenuRoot - create a new menu root
X *
X *  Returned Value:
X *	(MenuRoot *)
X *
X *  Inputs:
X *	name	- the name of the menu root
X *
X ***********************************************************************
X */
X
XMenuRoot *
XNewMenuRoot(name)
X    char *name;
X{
X    MenuRoot *tmp;
X
X    CreateGCs();
X
X    tmp = (MenuRoot *) malloc(sizeof(MenuRoot));
X    tmp->name = name;
X    tmp->prev = NULL;
X    tmp->first = NULL;
X    tmp->last = NULL;
X    tmp->items = 0;
X    tmp->width = 0;
X    tmp->mapped = FALSE;
X    tmp->pull = FALSE;
X    tmp->active = TRUE;
X    tmp->shadow = XCreateSimpleWindow(dpy, Root,
X	0, 0, 10, 10, 1, MenuShadowColor, MenuShadowColor);
X    tmp->w = XCreateSimpleWindow(dpy, Root,
X	0, 0, 10, 10, 1, MenuForeground, MenuBackground);
X    XSelectInput(dpy, tmp->w, LeaveWindowMask);
X
X    if (MenuList == NULL)
X    {
X	MenuList = tmp;
X	MenuList->next = NULL;
X    }
X
X    if (LastMenu == NULL)
X    {
X	LastMenu = tmp;
X	LastMenu->next = NULL;
X    }
X    else
X    {
X	LastMenu->next = tmp;
X	LastMenu = tmp;
X	LastMenu->next = NULL;
X    }
X
X    return (tmp);
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	AddToMenu - add an item to a root menu
X *
X *  Returned Value:
X *	(MenuItem *)
X *
X *  Inputs:
X *	menu	- pointer to the root menu to add the item
X *	item	- the text to appear in the menu
X *	action	- the string to possibly execute
X *	sub	- the menu root if it is a pull-right entry
X *	func	- the numeric function
X *
X ***********************************************************************
X */
X
XMenuItem *
XAddToMenu(menu, item, action, sub, func)
X    MenuRoot *menu;
X    char *item, *action;
X    MenuRoot *sub;
X    int func;
X{
X    unsigned long valuemask;
X    XSetWindowAttributes attributes;
X    MenuItem *tmp;
X    int width;
X
X#ifdef DEBUG
X    fprintf(stderr, "adding menu item=\"%s\", action=%s, sub=%d, f=%d\n",
X	item, action, sub, func);
X#endif
X
X    tmp = (MenuItem *) malloc(sizeof(MenuItem));
X    tmp->root = menu;
X
X    if (menu->first == NULL)
X    {
X	menu->first = tmp;
X	tmp->prev = NULL;
X    }
X    else
X    {
X	menu->last->next = tmp;
X	tmp->prev = menu->last;
X    }
X    menu->last = tmp;
X
X    tmp->item = item;
X    tmp->action = action;
X    tmp->next = NULL;
X    tmp->sub = NULL;
X    tmp->pull = NULL;
X    tmp->state = 0;
X    tmp->func = func;
X
X    width = XTextWidth(MenuFont, item, strlen(item));
X    if (width <= 0)
X	width = 1;
X    if (width > menu->width)
X	menu->width = width;
X
X    if (tmp->func != F_TITLE)
X    {
X	tmp->w = XCreateSimpleWindow(dpy, menu->w,
X	    0, menu->items * (MenuFontHeight + 4),
X	    width, MenuFontHeight + 4,
X	    0,
X	    MenuForeground, MenuBackground);
X	XSelectInput(dpy, tmp->w, EnterWindowMask
X	    | LeaveWindowMask | ExposureMask);
X    }
X    else
X    {
X	tmp->w = XCreateSimpleWindow(dpy, menu->w,
X	    -1, menu->items * (MenuFontHeight + 4),
X	    width, MenuFontHeight + 2,
X	    1,
X	    MenuForeground, MenuTitleBackground);
X	XSelectInput(dpy, tmp->w, ExposureMask);
X    }
X
X    if (sub != NULL)
X    {
X	Pixmap pm;
X
X	tmp->sub = sub;
X	pm = MakeCenteredPixmap(tmp->w, MenuNormalGC,
X	    pull_width, MenuFontHeight + 4,
X	    pull_bits, pull_width, pull_height);
X
X	valuemask = CWEventMask | CWBackPixmap;
X	attributes.background_pixmap = pm;
X	attributes.event_mask = EnterWindowMask | LeaveWindowMask;
X
X	tmp->pull = XCreateWindow(dpy, tmp->w,
X	    0, 0,
X	    pull_width, MenuFontHeight + 4,
X	    0, DefaultDepth(dpy, 0), CopyFromParent, DefaultVisual(dpy, 0),
X	    valuemask, &attributes);
X
X	XMapWindow(dpy, tmp->pull);
X
X	menu->pull = TRUE;
X	XSaveContext(dpy, tmp->pull, MenuContext, tmp);
X    }
X    menu->items += 1;
X
X    XSaveContext(dpy, tmp->w, MenuContext, tmp);
X
X    if (menu->items == 1)
X	XSaveContext(dpy, tmp->root->w, MenuContext, tmp);
X
X    return (tmp);
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	PopUpMenu - pop up a pull down menu
X *
X *  Inputs:
X *	menu	- the root pointer of the menu to pop up
X *	x	- the x location of the mouse
X *	y	- the y location of the mouse
X *
X ***********************************************************************
X */
X
Xvoid
XPopUpMenu(menu, x, y)
X    MenuRoot *menu;
X    int x, y;
X{
X    int d_width, d_height, m_height;
X    XWindowChanges xwc, pwc;
X    unsigned int xwcm, pwcm;
X    MenuItem *tmp;
X
X    if (menu == NULL)
X	return;
X
X    if (ActiveMenu != NULL)
X	ActiveMenu->active = FALSE;
X
X    menu->active = TRUE;
X    ActiveMenu = menu;
X    if (menu->mapped != TRUE)
X    {
X	if (menu->pull == TRUE)
X	{
X	    menu->width += pull_width + 10;
X	}
X
X	xwcm = 0;
X	xwcm |= CWWidth;
X	xwc.width = menu->width + 10;
X
X	pwcm = 0;
X	pwcm |= CWX;
X	pwc.x = xwc.width - pull_width;
X
X	for (tmp = menu->first; tmp != NULL; tmp = tmp->next)
X	{
X	    XConfigureWindow(dpy, tmp->w, xwcm, &xwc);
X	    if (tmp->pull != NULL)
X	    {
X		XConfigureWindow(dpy, tmp->pull, pwcm, &pwc);
X	    }
X	    if (tmp->func != F_TITLE)
X		tmp->y = 5;
X	    else
X	    {
X		tmp->y = xwc.width - XTextWidth(MenuFont, tmp->item,
X		    strlen(tmp->item));
X		tmp->y /= 2;
X	    }
X	}
X    }
X    menu->mapped = TRUE;
X
X    d_width = DisplayWidth(dpy, DefaultScreen(dpy));
X    d_height = DisplayHeight(dpy, DefaultScreen(dpy));
X    m_height = menu->items * (MenuFontHeight + 4);
X
X    if ((x + menu->width + 10) > d_width)
X	x = (d_width - menu->width - 20);
X
X    if ((y + m_height + 10) > d_height)
X	y = (d_height - m_height - 20);
X
X    xwcm = 0;
X    xwcm |= CWX;
X    xwc.x = x - 1;
X    xwcm |= CWY;
X    xwc.y = y - ((MenuFontHeight + 4) / 2);
X    xwcm |= CWWidth;
X    xwc.width = menu->width + 10;
X    xwcm |= CWHeight;
X    xwc.height = m_height;
X
X    XConfigureWindow(dpy, menu->w, xwcm, &xwc);
X
X    xwc.x = xwc.x + 5;
X    xwc.y = xwc.y + 5;
X    /* xwc.width -= 20; xwc.height -= 20; */
X
X    XConfigureWindow(dpy, menu->shadow, xwcm, &xwc);
X    XWarpPointer(dpy, None, menu->w, 0, 0, 0, 0, 1, (MenuFontHeight + 4) / 2);
X    XMapSubwindows(dpy, menu->w);
X    XRaiseWindow(dpy, menu->shadow);
X    XMapRaised(dpy, menu->w);
X    XMapWindow(dpy, menu->shadow);
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	FindMenuRoot - look for a menu root
X *
X *  Returned Value:
X *	(MenuRoot *)  - a pointer to the menu root structure 
X *
X *  Inputs:
X *	name	- the name of the menu root 
X *
X ***********************************************************************
X */
X
XMenuRoot *
XFindMenuRoot(name)
X    char *name;
X{
X    MenuRoot *tmp;
X
X    for (tmp = MenuList; tmp != NULL; tmp = tmp->next)
X    {
X	if (strcmp(name, tmp->name) == 0)
X	    return (tmp);
X    }
X    return NULL;
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	ExecuteFunction - execute a twm root function
X *
X *  Inputs:
X *	func	- the function to execute
X *	menu	- the menu item to execute 
X *	w	- the window to execute this function on
X *	tmp_win	- the twm window structure
X *	event	- the event that caused the function
X *	context - the context in which the button was pressed
X *	pulldown- flag indicating execution from pull down mene
X *
X ***********************************************************************
X */
X
Xvoid
XExecuteFunction(func, menu, w, tmp_win, event, context, pulldown)
X    int func;
X    MenuItem *menu;
X    Window w;
X    TwmWindow *tmp_win;
X    XEvent event;
X    int context;
X    int pulldown;
X{
X    static Time last_time = 0;
X
X    char tmp[200];
X    char *ptr;
X    int len;
X    char buff[MAX_FILE_SIZE];
X    int count, fd;
X    MenuRoot *root, *tmp_root;
X    MenuItem *item, *tmp_item;
X
X    XGrabPointer(dpy, Root, True,
X	ButtonReleaseMask,
X	GrabModeAsync, GrabModeSync,
X	Root, ClockCursor, CurrentTime);
X
X    switch (func)
X    {
X    case F_NOP:
X    case F_TITLE:
X	break;
X
X    case F_RESIZE:
X	if (DeferExecution(context, func, MoveCursor))
X	    return;
X
X	if (pulldown)
X	    XWarpPointer(dpy, None, Root, 
X		0, 0, 0, 0, event.xbutton.x_root, event.xbutton.y_root);
X
X	if (w != tmp_win->icon_w)
X	{
X	    EventHandler[EnterNotify] = HandleUnknown;
X	    EventHandler[LeaveNotify] = HandleUnknown;
X	    EventHandler[Expose] = HandleUnknown;
X	    StartResize(event, tmp_win);
X	    return;
X	}
X	break;
X
X    case F_MOVE:
X	if (DeferExecution(context, func, MoveCursor))
X	    return;
X
X	if (pulldown)
X	    XWarpPointer(dpy, None, Root, 
X		0, 0, 0, 0, event.xbutton.x_root, event.xbutton.y_root);
X
X	EventHandler[EnterNotify] = HandleUnknown;
X	EventHandler[LeaveNotify] = HandleUnknown;
X	EventHandler[Expose] = HandleUnknown;
X
X	/* redraw the text in the title bar or the icon window if
X	 * needed, we have disabled expose event handling so we must
X	 * do it here
X	 */
X	if (context == C_TITLE)
X	{
X	    XDrawImageString(dpy, tmp_win->title_w,
X		TitleNormalGC,
X		TitleBarX, TitleBarY,
X		tmp_win->name, strlen(tmp_win->name));
X	}
X	else if (context == C_ICON)
X	{
X	    XDrawImageString(dpy, tmp_win->icon_w,
X		IconNormalGC,
X		tmp_win->icon_x, tmp_win->icon_y,
X		tmp_win->icon_name, strlen(tmp_win->icon_name));
X	}
X
X	XGrabServer(dpy);
X	XGrabPointer(dpy, event.xbutton.root, True,
X	    ButtonReleaseMask,
X	    GrabModeAsync, GrabModeSync,
X	    Root, MoveCursor, CurrentTime);
X
X	if (context == C_ICON)
X	    w = tmp_win->icon_w;
X	else if (w != tmp_win->icon_w)
X	    w = tmp_win->frame;
X
X	DragX = event.xbutton.x;
X	DragY = event.xbutton.y;
X
X	if (context == C_WINDOW)
X	    DragY += tmp_win->title_height;
X		 
X	DragWindow = w;
X
X	XGetGeometry(dpy, w, &JunkRoot, &JunkX, &JunkY,
X	    &DragWidth, &DragHeight, &JunkBW,
X	    &JunkDepth);
X
X	MoveOutline((Window)event.xbutton.root,
X	    event.xbutton.x_root-DragX-BorderWidth,
X	    event.xbutton.y_root-DragY-BorderWidth,
X	    DragWidth + 2 * BorderWidth,
X	    DragHeight + 2 * BorderWidth);
X
X	if ((event.xbutton.time - last_time) < 400)
X	{
X	    int width, height;
X
X	    ConstMove = TRUE;
X	    ConstMoveDir = MOVE_NONE;
X	    ConstMoveX = event.xbutton.x_root - DragX - BorderWidth;
X	    ConstMoveY = event.xbutton.y_root - DragY - BorderWidth;
X	    width = DragWidth + 2 * BorderWidth;
X	    height = DragHeight + 2 * BorderWidth;
X	    ConstMoveXL = ConstMoveX + width/3;
X	    ConstMoveXR = ConstMoveX + 2*(width/3);
X	    ConstMoveYT = ConstMoveY + height/3;
X	    ConstMoveYB = ConstMoveY + 2*(height/3);
X
X	    XWarpPointer(dpy, None, DragWindow,
X		0, 0, 0, 0, DragWidth/2, DragHeight/2);
X
X	    XQueryPointer(dpy, DragWindow, &JunkRoot, &JunkChild,
X		&JunkX, &JunkY, &DragX, &DragY, &JunkMask);
X	}
X	last_time = event.xbutton.time;
X	return;
X        break;
X
X    case F_ICONIFY:
X	if (DeferExecution(context, func, DotCursor))
X	    return;
X
X	if (tmp_win->icon)
X	{
X	    Zoom(tmp_win->icon_w, tmp_win->frame);
X
X	    XUnmapWindow(dpy, tmp_win->icon_w);
X	    XMapWindow(dpy, tmp_win->w);
X	    if (NoRaiseDeicon)
X		XMapWindow(dpy, tmp_win->frame);
X	    else
X		XMapRaised(dpy, tmp_win->frame);
X
X	    if (WarpCursor)
X	    {
X		XWarpPointer(dpy, None, tmp_win->frame,
X		    0, 0, 0, 0, 30, 8);
X	    }
X	    tmp_win->icon = FALSE;
X	}
X        else
X	{
X	    if (!tmp_win->iconified)
X	    {
X		int final_x, final_y;
X
X		if (tmp_win->wmhints &&
X		    tmp_win->wmhints->flags & IconPositionHint)
X		{
X		    final_x = tmp_win->wmhints->icon_x;
X		    final_y = tmp_win->wmhints->icon_y;
X		}
X		else
X		{
X		    final_x = event.xbutton.x_root - 5;
X		    final_y = event.xbutton.y_root - 5;
X		}
X
X		if (final_x > MyDisplayWidth)
X		    final_x = MyDisplayWidth - tmp_win->icon_w_width -
X			(2 * BorderWidth);
X
X		if (final_y > MyDisplayHeight)
X		    final_y = MyDisplayHeight - tmp_win->icon_height -
X			IconFontHeight - 4 - (2 * BorderWidth);
X
X		XMoveWindow(dpy, tmp_win->icon_w, final_x, final_y);
X		tmp_win->iconified = TRUE;
X	    }
X
X	    Zoom(tmp_win->frame, tmp_win->icon_w);
X	    XUnmapWindow(dpy, tmp_win->frame);
X	    XMapSubwindows(dpy, tmp_win->icon_w);
X	    XMapRaised(dpy, tmp_win->icon_w);
X	    if (tmp_win == Focus)
X	    {
X		XSetInputFocus(dpy, Root, RevertToPointerRoot,
X		    CurrentTime);
X		Focus = NULL;
X		FocusRoot = TRUE;
X	    }
X	    tmp_win->icon = TRUE;
X	}
X	SetHints(tmp_win);
X	break;
X
X    case F_RAISE:
X	if (DeferExecution(context, func, DotCursor))
X	    return;
X
X	if (w == tmp_win->icon_w)
X	{
X	    Zoom(tmp_win->icon_w, tmp_win->frame);
X	    XUnmapWindow(dpy, tmp_win->icon_w);
X	    XMapWindow(dpy, tmp_win->w);
X	    if (NoRaiseDeicon)
X		XMapWindow(dpy, tmp_win->frame);
X	    else
X		XMapRaised(dpy, tmp_win->frame);
X
X	    if (WarpCursor)
X	    {
X		XWarpPointer(dpy, None, tmp_win->frame,
X		    0, 0, 0, 0, 30, 8);
X	    }
X	    tmp_win->icon = FALSE;
X	}
X	else
X	{
X	    XRaiseWindow(dpy, tmp_win->frame);
X	}
X	break;
X
X    case F_LOWER:
X	if (DeferExecution(context, func, DotCursor))
X	    return;
X
X	XLowerWindow(dpy, tmp_win->frame);
X	break;
X
X    case F_FOCUS:
X	if (DeferExecution(context, func, DotCursor))
X	    return;
X
X	if (w != tmp_win->icon_w)
X	{
X	    if (Focus != NULL && Focus != tmp_win)
X	    {
X		XUnmapWindow(dpy, Focus->hilite_w);
X	    }
X	    XMapWindow(dpy, tmp_win->hilite_w);
X	    /*
X	    XSetWindowBorder(dpy, tmp_win->frame, Foreground);
X	    */
X	    XSetInputFocus(dpy, tmp_win->w, RevertToPointerRoot,
X		    CurrentTime);
X	    FocusRoot = FALSE;
X	    Focus = tmp_win;
X	}
X	break;
X
X    case F_DESTROY:
X	if (DeferExecution(context, func, SkullCursor))
X	    return;
X
X	XKillClient(dpy, tmp_win->w);
X	break;
X
X    case F_CIRCLEUP:
X	XCirculateSubwindowsUp(dpy, Root);
X	break;
X
X    case F_CIRCLEDOWN:
X	XCirculateSubwindowsDown(dpy, Root);
X	break;
X
X    case F_VERSION:
X	XMapRaised(dpy, VersionWindow);
X	break;
X
X    case F_EXEC:
X	Execute(menu->action);
X	break;
X
X    case F_UNFOCUS:
X	FocusOnRoot();
X	break;
X
X    case F_CUT:
X	strcpy(tmp, menu->action);
X	strcat(tmp, "\n");
X	XStoreBytes(dpy, tmp, strlen(tmp));
X	break;
X
X    case F_CUTFILE:
X	ptr = XFetchBytes(dpy, &count);
X	if (count != 0)
X	{
X	    if (sscanf(ptr, "%s", tmp) == 1)
X	    {
X		ptr = ExpandFilename(tmp);
X		fd = open(ptr, 0);
X		if (fd >= 0)
X		{
X		    count = read(fd, buff, MAX_FILE_SIZE - 1);
X		    if (count > 0)
X			XStoreBytes(dpy, buff, count);
X
X		    close(fd);
X		}
X		else
X		{
X		    fprintf(stderr, "twm: couldn't open \"%s\"\n", tmp);
X		}
X	    }
X	    XFree(ptr);
X	}
X	else
X	{
X	    fprintf(stderr, "twm: nothing in the cut buffer\n");
X	}
X	break;
X
X    case F_FILE:
X	menu->action = ExpandFilename(menu->action);
X	fd = open(menu->action, 0);
X	if (fd >= 0)
X	{
X	    count = read(fd, buff, MAX_FILE_SIZE - 1);
X	    if (count > 0)
X		XStoreBytes(dpy, buff, count);
X
X	    close(fd);
X	}
X	else
X	{
X	    fprintf(stderr, "twm: couldn't open \"%s\"\n", menu->action);
X	}
X	break;
X
X    case F_TWMRC:
X	len = strlen(menu->action);
X	if (len == 0)
X	    ptr = NULL;
X	else
X	{
X	    ptr = (char *)malloc(len+1);
X	    if (ptr == NULL)
X	    {
X		fprintf(stderr, "twm: out of memory\n");
X		exit(1);
X	    }
X	    strcpy(ptr, menu->action);
X	}
X
X	/* first get rid of the existing menu structure and destroy all
X	 * windows */
X	for (root = MenuList; root != NULL;)
X	{
X	    for (item = root->last; item != NULL;)
X	    {
X		if (item->pull != NULL)
X		{
X		    XDeleteContext(dpy, item->pull, MenuContext);
X		    XDestroyWindow(dpy, item->pull);
X		}
X		XDeleteContext(dpy, item->w, MenuContext);
X		XDestroyWindow(dpy, item->w);
X
X		free(item->item);
X		free(item->action);
X
X		tmp_item = item;
X		item = item->prev;
X		free(tmp_item);
X	    }
X
X	    XDeleteContext(dpy, root->w, MenuContext);
X	    XDestroyWindow(dpy, root->shadow);
X	    XDestroyWindow(dpy, root->w);
X	    free(root->name);
X
X	    tmp_root = root;
X	    root = root->next;
X	    free(tmp_root);
X	}
X	MenuList = NULL;
X	LastMenu = NULL;
X	ActiveMenu = NULL;
X	ActiveItem = NULL;
X
X	/* ungrab the buttons currently grabbed */
X	for (tmp_win = TwmRoot.next; tmp_win != NULL; tmp_win = tmp_win->next)
X	{
X	    UngrabButtons(tmp_win);
X	}
X
X	ParseTwmrc(ptr);
X
X	/* now we have to redo the button grab mask for all windows */
X	for (tmp_win = TwmRoot.next; tmp_win != NULL; tmp_win = tmp_win->next)
X	{
X	    GrabButtons(tmp_win);
X	}
X	break;
X
X    case F_REFRESH:
X	w = XCreateSimpleWindow(dpy, Root,
X	    0, 0, 9999, 9999, 0, Black, Black);
X	XMapWindow(dpy, w);
X	XDestroyWindow(dpy, w);
X	XFlush(dpy);
X	break;
X
X    case F_WINREFRESH:
X	if (DeferExecution(context, func, DotCursor))
X	    return;
X
X	if (context == C_ICON)
X	    w = XCreateSimpleWindow(dpy, tmp_win->icon_w,
X		0, 0, 9999, 9999, 0, Black, Black);
X	else
X	    w = XCreateSimpleWindow(dpy, tmp_win->frame,
X		0, 0, 9999, 9999, 0, Black, Black);
X
X	XMapWindow(dpy, w);
X	XDestroyWindow(dpy, w);
X	XFlush(dpy);
X	break;
X
X    case F_QUIT:
X	Done();
X	break;
X    }
X    XUngrabPointer(dpy, CurrentTime);
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	DeferExecution - defer the execution of a function to the
X *	    next button press if the context is C_ROOT
X *
X *  Inputs:
X *	context	- the context in which the mouse button was pressed
X *	func	- the function to defer
X *	cursor	- the cursor to display while waiting
X *
X ***********************************************************************
X */
X
Xint
XDeferExecution(context, func, cursor)
Xint context, func;
XCursor cursor;
X{
X    if (context == C_ROOT)
X    {
X	XGrabPointer(dpy, Root, True,
X	    ButtonReleaseMask,
X	    GrabModeAsync, GrabModeSync,
X	    Root, cursor, CurrentTime);
X
X	RootFunction = func;
X	return (TRUE);
X    }
X    
X    return (FALSE);
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	Execute - execute the string by /bin/sh
X *
X *  Inputs:
X *	s	- the string containing the command
X *
X ***********************************************************************
X */
X
Xvoid
XExecute(s)
X    char *s;
X{
X    int status, pid, w;
X    register int (*istat) (), (*qstat) ();
X
X    if ((pid = vfork()) == 0)
X    {
X	signal(SIGINT, SIG_DFL);
X	signal(SIGQUIT, SIG_DFL);
X	signal(SIGHUP, SIG_DFL);
X	execl("/bin/sh", "sh", "-c", s, 0);
X	_exit(127);
X    }
X    istat = signal(SIGINT, SIG_IGN);
X    qstat = signal(SIGQUIT, SIG_IGN);
X    while ((w = wait(&status)) != pid && w != -1);
X    if (w == -1)
X	status = -1;
X    signal(SIGINT, istat);
X    signal(SIGQUIT, qstat);
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	FocusOnRoot - put input focus on the root window
X *
X ***********************************************************************
X */
X
Xvoid
XFocusOnRoot()
X{
X    XSetInputFocus(dpy, Root, RevertToPointerRoot, CurrentTime);
X    if (Focus != NULL)
X    {
X	XUnmapWindow(dpy, Focus->hilite_w);
X    }
X    Focus = NULL;
X    FocusRoot = TRUE;
X}
X
SHAR_EOF
if test 21724 -ne "`wc -c < menus.c`"
then
    echo shar: error transmitting "menus.c" '(should have been 21724 characters)'
fi
fi
if test -f 'util.c'
then
    echo shar: will not over-write existing file "util.c"
else
echo extracting "util.c"
sed 's/^X//' >util.c <<'SHAR_EOF'
X/*****************************************************************************/
X/**       Copyright 1988 by Evans & Sutherland Computer Corporation,        **/
X/**                          Salt Lake City, Utah                           **/
X/**                                                                         **/
X/**                           All Rights Reserved                           **/
X/**                                                                         **/
X/**    Permission to use, copy, modify, and distribute this software and    **/
X/**    its documentation  for  any  purpose  and  without  fee is hereby    **/
X/**    granted, provided that the above copyright notice appear  in  all    **/
X/**    copies and that both  that  copyright  notice  and  this  permis-    **/
X/**    sion  notice appear in supporting  documentation,  and  that  the    **/
X/**    name  of Evans & Sutherland  not be used in advertising or publi-    **/
X/**    city pertaining to distribution  of the software without  specif-    **/
X/**    ic, written prior permission.                                        **/
X/**                                                                         **/
X/**    EVANS  & SUTHERLAND  DISCLAIMS  ALL  WARRANTIES  WITH  REGARD  TO    **/
X/**    THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILI-    **/
X/**    TY AND FITNESS, IN NO EVENT SHALL EVANS &  SUTHERLAND  BE  LIABLE    **/
X/**    FOR  ANY  SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY  DAM-    **/
X/**    AGES  WHATSOEVER RESULTING FROM  LOSS OF USE,  DATA  OR  PROFITS,    **/
X/**    WHETHER   IN  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS    **/
X/**    ACTION, ARISING OUT OF OR IN  CONNECTION  WITH  THE  USE  OR PER-    **/
X/**    FORMANCE OF THIS SOFTWARE.                                           **/
X/*****************************************************************************/
X
X/***********************************************************************
X *
X * $Header: util.c,v 1.17 88/06/03 06:39:10 tlastran Exp $
X *
X * utility routines for twm
X *
X * 28-Oct-87 Thomas E. LaStrange	File created
X *
X ***********************************************************************/
X
X#ifndef lint
Xstatic char RCSinfo[]=
X"$Header: util.c,v 1.17 88/06/03 06:39:10 tlastran Exp $";
X#endif
X
X#include <stdio.h>
X#include "twm.h"
X#include "util.h"
X#include "gram.h"
X
X#define ZOOM_COUNT 8		/* number of outlines to draw while zooming */
X
X/***********************************************************************
X *
X *  Procedure:
X *	MoveOutline - move a window outline
X *
X *  Inputs:
X *	root	    - the window we are outlining
X *	x	    - upper left x coordinate
X *	y	    - upper left y coordinate
X *	width	    - the width of the rectangle
X *	height	    - the height of the rectangle
X *
X ***********************************************************************
X */
X
Xvoid
XMoveOutline(root, x, y, width, height)
X    Window root;
X    int x, y, width, height;
X{
X    static int	lastx = 0;
X    static int	lasty = 0;
X    static int	lastWidth = 0;
X    static int	lastHeight = 0;
X    int		xl, xr, yt, yb;
X    int		xthird, ythird;
X    XSegment	outline[16];
X    XSegment	*r = outline;
X
X    if (x == lastx && y == lasty && width == lastWidth && height == lastHeight)
X	return;
X    
X    xthird = lastWidth/3;
X    ythird = lastHeight/3;
X    xl = lastx;
X    xr = lastx + lastWidth - 1;
X    yt = lasty;
X    yb = lasty + lastHeight - 1;
X
X    if (lastWidth || lastHeight)
X    {
X	r->x1 = xl;
X	r->y1 = yt;
X	r->x2 = xr;
X	r++->y2 = yt;
X
X	r->x1 = xl;
X	r->y1 = yb;
X	r->x2 = xr;
X	r++->y2 = yb;
X
X	r->x1 = xl;
X	r->y1 = yt;
X	r->x2 = xl;
X	r++->y2 = yb;
X
X	r->x1 = xr;
X	r->y1 = yt;
X	r->x2 = xr;
X	r++->y2 = yb;
X
X	r->x1 = xl + xthird;
X	r->y1 = yt;
X	r->x2 = r->x1;
X	r++->y2 = yb;
X
X	r->x1 = xl + (2 * xthird);
X	r->y1 = yt;
X	r->x2 = r->x1;
X	r++->y2 = yb;
X
X	r->x1 = xl;
X	r->y1 = yt + ythird;
X	r->x2 = xr;
X	r->y2 = r->y1;
X	r++;
X
X	r->x1 = xl;
X	r->y1 = yt + (2 * ythird);
X	r->x2 = xr;
X	r->y2 = r->y1;
X	r++;
X    }
X
X    lastx = x;
X    lasty = y;
X    lastWidth = width;
X    lastHeight = height;
X    xthird = lastWidth/3;
X    ythird = lastHeight/3;
X    xl = lastx;
X    xr = lastx + lastWidth - 1;
X    yt = lasty;
X    yb = lasty + lastHeight - 1;
X
X    if (lastWidth || lastHeight)
X    {
X	r->x1 = xl;
X	r->y1 = yt;
X	r->x2 = xr;
X	r++->y2 = yt;
X
X	r->x1 = xl;
X	r->y1 = yb;
X	r->x2 = xr;
X	r++->y2 = yb;
X
X	r->x1 = xl;
X	r->y1 = yt;
X	r->x2 = xl;
X	r++->y2 = yb;
X
X	r->x1 = xr;
X	r->y1 = yt;
X	r->x2 = xr;
X	r++->y2 = yb;
X
X	r->x1 = xl + xthird;
X	r->y1 = yt;
X	r->x2 = r->x1;
X	r++->y2 = yb;
X
X	r->x1 = xl + (2 * xthird);
X	r->y1 = yt;
X	r->x2 = r->x1;
X	r++->y2 = yb;
X
X	r->x1 = xl;
X	r->y1 = yt + ythird;
X	r->x2 = xr;
X	r->y2 = r->y1;
X	r++;
X
X	r->x1 = xl;
X	r->y1 = yt + (2 * ythird);
X	r->x2 = xr;
X	r->y2 = r->y1;
X	r++;
X    }
X    if (r != outline)
X    {
X	XDrawSegments(dpy, root, DrawGC, outline, r - outline);
X    }
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	Zoom - zoom in or out of an icon
X *
X *  Inputs:
X *	wf	- window to zoom from
X *	wt	- window to zoom to
X *
X ***********************************************************************
X */
X
Xvoid
XZoom(wf, wt)
X{
X    int fx, fy, fw, fh;
X    int tx, ty, tw, th;
X    int xl, yt, xr, yb;
X    int dx, dy, dw, dh;
X    int w, h, i;
X    XSegment	outline[4];
X
X    if (!DoZoom)
X	return;
X
X    XGetGeometry(dpy, wf, &JunkRoot, &fx, &fy, &fw, &fh, &JunkBW, &JunkDepth);
X    XGetGeometry(dpy, wt, &JunkRoot, &tx, &ty, &tw, &th, &JunkBW, &JunkDepth);
X
X    dx = (tx - fx) / ZOOM_COUNT;
X    dy = (ty - fy) / ZOOM_COUNT;
X    dw = (tw - fw) / ZOOM_COUNT;
X    dh = (th - fh) / ZOOM_COUNT;
X
X    xl = fx;
X    yt = fy;
X    xr = fx + fw;
X    yb = fy + fh;
X    w = fw;
X    h = fh;
X
X    for (i = 0; i < ZOOM_COUNT; i++)
X    {
X	outline[0].x1 = xl;
X	outline[0].y1 = yt;
X	outline[0].x2 = xr;
X	outline[0].y2 = yt;
X
X	outline[1].x1 = xr;
X	outline[1].y1 = yt;
X	outline[1].x2 = xr;
X	outline[1].y2 = yb;
X
X	outline[2].x1 = xr;
X	outline[2].y1 = yb;
X	outline[2].x2 = xl;
X	outline[2].y2 = yb;
X
X	outline[3].x1 = xl;
X	outline[3].y1 = yb;
X	outline[3].x2 = xl;
X	outline[3].y2 = yt;
X
X	XDrawSegments(dpy, Root, DrawGC, outline, 4);
X
X	w += dw;
X	h += dh;
X	xl += dx;
X	yt += dy;
X	xr = xl + w;
X	yb = yt + h;
X    }
X
X    xl = fx;
X    yt = fy;
X    xr = fx + fw;
X    yb = fy + fh;
X    w = fw;
X    h = fh;
X
X    for (i = 0; i < ZOOM_COUNT; i++)
X    {
X	outline[0].x1 = xl;
X	outline[0].y1 = yt;
X	outline[0].x2 = xr;
X	outline[0].y2 = yt;
X
X	outline[1].x1 = xr;
X	outline[1].y1 = yt;
X	outline[1].x2 = xr;
X	outline[1].y2 = yb;
X
X	outline[2].x1 = xr;
X	outline[2].y1 = yb;
X	outline[2].x2 = xl;
X	outline[2].y2 = yb;
X
X	outline[3].x1 = xl;
X	outline[3].y1 = yb;
X	outline[3].x2 = xl;
X	outline[3].y2 = yt;
X
X	XDrawSegments(dpy, Root, DrawGC, outline, 4);
X
X	w += dw;
X	h += dh;
X	xl += dx;
X	yt += dy;
X	xr = xl + w;
X	yb = yt + h;
X    }
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	MakeCenteredPixmap - make a pixmap centered in a space
X *
X *  Returned Value:
X *	pid	- the pixmap id
X *
X *  Inputs:
X *	w	- the window to associate the pixmap with
X *	gc	- the graphics context to use
X *	width	- the width of the pixmap to create
X *	height  - the height of the pixmap to create
X *	data	- pointer to the pixmap data
X *	pwidth	- the width of the pixmap
X *	pheight	- the height of the pixmap
X *
X ***********************************************************************
X */
X
XPixmap
XMakeCenteredPixmap(w, gc, width, height, data, pwidth, pheight)
X    Drawable w;
X    GC gc;
X    int width, height;
X    short *data;
X    int pwidth, pheight;
X{
X    XImage ximage;
X    Pixmap pid;
X    int dx, dy;
X
X    pid = XCreatePixmap(dpy, w, width, height, DefaultDepth(dpy, 0));
X
X    ximage.height = pheight;
X    ximage.width = pwidth;
X    ximage.xoffset = 0;
X    ximage.format = XYBitmap;
X    ximage.data = (char *) data;
X    ximage.byte_order = LSBFirst;
X    ximage.bitmap_unit = 16;
X    ximage.bitmap_bit_order = LSBFirst;
X    ximage.bitmap_pad = 16;
X    ximage.bytes_per_line = (pwidth + 15) / 16 * 2;
X    ximage.depth = 1;
X
X    dx = (width - pwidth) / 2;
X    dy = (height - pheight) / 2;
X
X    XPutImage(dpy, pid, gc, &ximage, 0, 0, dx, dy, pwidth, pheight);
X    return (pid);
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	MakePixmap - make a pixmap
X *
X *  Returned Value:
X *	pid	- the pixmap id
X *
X *  Inputs:
X *	w	- the window to associate the pixmap with
X *	gc	- the graphics context to use
X *	data	- pointer to the pixmap data
X *	width	- the width of the pixmap
X *	height	- the height of the pixmap
X *
X ***********************************************************************
X */
X
XPixmap
XMakePixmap(w, gc, data, width, height)
X    Drawable w;
X    GC gc;
X    short *data;
X    int width, height;
X{
X    return MakeCenteredPixmap(w, gc, width, height, data, width, height);
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	ExpandFilename - expand the tilde character to HOME
X *		if it is the first character of the filename
X *
X *  Returned Value:
X *	a pointer to the new name
X *
X *  Inputs:
X *	name	- the filename to expand
X *
X ***********************************************************************
X */
X
Xchar *
XExpandFilename(name)
Xchar *name;
X{
X    char *newname;
X
X    if (name[0] != '~')
X	return (name);
X
X    newname = (char *)malloc(HomeLen + strlen(name) + 2);
X    sprintf(newname, "%s/%s", Home, &name[1]);
X
X    return (newname);
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	GetUnknownIcon - read in the bitmap file for the unknown icon
X *
X *  Inputs:
X *	name - the filename to read
X *
X ***********************************************************************
X */
X
Xvoid
XGetUnknownIcon(name)
Xchar *name;
X{
X    UnknownPm = GetBitmap(name);
X    if (UnknownPm != NULL)
X    {
X	XGetGeometry(dpy, UnknownPm, &JunkRoot, &JunkX, &JunkY,
X	    &UnknownWidth, &UnknownHeight, &JunkBW, &JunkDepth);
X    }
X}
X
X/***********************************************************************
X *
X *  Procedure:
X *	GetBitmap - read in a bitmap file
X *
X *  Returned Value:
X *	the pixmap associated with the bitmap
X *
X *  Inputs:
X *	name	- the filename to read
X *
X ***********************************************************************
X */
X
XPixmap
XGetBitmap(name)
Xchar *name;
X{
X    char *bigname;
X    int status, junk_hotx, junk_hoty;
X    Pixmap pm;
X
X    if  (name == NULL)
X	return (NULL);
X
X    name = ExpandFilename(name);
X    bigname = name;
X
X    status = XReadBitmapFile(dpy, Root, bigname, &JunkWidth,
X	&JunkHeight, &pm, &junk_hotx, &junk_hoty);
X
X    if (status != BitmapSuccess && IconDirectory && name[0] != '/')
X    {
X	bigname = (char *)malloc(strlen(name) + strlen(IconDirectory) + 2);
X	sprintf(bigname, "%s/%s", IconDirectory, name);
X	status = XReadBitmapFile(dpy, Root, bigname, &JunkWidth,
X	    &JunkHeight, &pm, &junk_hotx, &junk_hoty);
X    }
X
X    if (status != BitmapSuccess && name[0] != '/')
X    {
X	bigname = (char *)malloc(strlen(name) + strlen(BITMAPS) + 2);
X	sprintf(bigname, "%s/%s", BITMAPS, name);
X	status = XReadBitmapFile(dpy, Root, bigname, &JunkWidth,
X	    &JunkHeight, &pm, &junk_hotx, &junk_hoty);
X    }
X
X    switch(status)
X    {
X	case BitmapSuccess:
X	    break;
X
X	case BitmapFileInvalid:
X	    fprintf(stderr, ".twmrc: invalid bitmap file \"%s\"\n", bigname);
X	    break;
X
X	case BitmapNoMemory:
X	    fprintf(stderr, ".twmrc: out of memory \"%s\"\n", bigname);
X	    break;
X
X	case BitmapOpenFailed:
X	    fprintf(stderr, ".twmrc: failed to open bitmap file \"%s\"\n",
X		bigname);
X	    break;
X
X	default:
X	    fprintf(stderr,".twmrc: bitmap error = 0x%x on file \"%s\"\n",
X		status, bigname);
X	    break;
X    }
X
X    if (status != BitmapSuccess)
X	return (NULL);
X
X    return (pm);
X}
X
Xint
XGetColor(kind, what, name)
Xint kind;
Xint *what;
Xchar *name;
X{
X    int stat;
X    XColor color, junkcolor;
X
X    if (!FirstTime)
X	return;
X
X    if (Monochrome != kind)
X	return;
X
X    stat = XAllocNamedColor(dpy, CMap, name, &color, &junkcolor);
X    switch (stat)
X    {
X    case BadAlloc:
X    case BadColor:
X    case BadName:
X	fprintf(stderr, "twm: invalid color \"%s\" %d\n", name, stat);
X	break;
X
X    default:
X	*what = color.pixel;
X    }
X}
SHAR_EOF
if test 12175 -ne "`wc -c < util.c`"
then
    echo shar: error transmitting "util.c" '(should have been 12175 characters)'
fi
fi
if test -f 'version.c'
then
    echo shar: will not over-write existing file "version.c"
else
echo extracting "version.c"
sed 's/^X//' >version.c <<'SHAR_EOF'
X/*****************************************************************************/
X/**       Copyright 1988 by Evans & Sutherland Computer Corporation,        **/
X/**                          Salt Lake City, Utah                           **/
X/**                                                                         **/
X/**                           All Rights Reserved                           **/
X/**                                                                         **/
X/**    Permission to use, copy, modify, and distribute this software and    **/
X/**    its documentation  for  any  purpose  and  without  fee is hereby    **/
X/**    granted, provided that the above copyright notice appear  in  all    **/
X/**    copies and that both  that  copyright  notice  and  this  permis-    **/
X/**    sion  notice appear in supporting  documentation,  and  that  the    **/
X/**    name  of Evans & Sutherland  not be used in advertising or publi-    **/
X/**    city pertaining to distribution  of the software without  specif-    **/
X/**    ic, written prior permission.                                        **/
X/**                                                                         **/
X/**    EVANS  & SUTHERLAND  DISCLAIMS  ALL  WARRANTIES  WITH  REGARD  TO    **/
X/**    THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILI-    **/
X/**    TY AND FITNESS, IN NO EVENT SHALL EVANS &  SUTHERLAND  BE  LIABLE    **/
X/**    FOR  ANY  SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY  DAM-    **/
X/**    AGES  WHATSOEVER RESULTING FROM  LOSS OF USE,  DATA  OR  PROFITS,    **/
X/**    WHETHER   IN  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS    **/
X/**    ACTION, ARISING OUT OF OR IN  CONNECTION  WITH  THE  USE  OR PER-    **/
X/**    FORMANCE OF THIS SOFTWARE.                                           **/
X/*****************************************************************************/
X
X/***********************************************************************
X *
X * $Header: version.c,v 3.0 88/06/03 11:32:05 tlastran Exp $
X *
X * twm version number
X *
X * 14-Dec-87 Thomas E. LaStrange		File created
X *
X ***********************************************************************/
X
Xstatic char RCSinfo[]=
X"$Header: version.c,v 3.0 88/06/03 11:32:05 tlastran Exp $";
X
Xchar *Revision = "$Revision: 3.0 $";
Xchar *Date = "$Date: 88/06/03 11:32:05 $";
SHAR_EOF
if test 2376 -ne "`wc -c < version.c`"
then
    echo shar: error transmitting "version.c" '(should have been 2376 characters)'
fi
fi
# end of shell archive
exit 0