xsrc/external/mit/ctwm/dist/cursor.c

/*
 * Copyright 1989 Massachusetts Institute of Technology
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted, provided
 * that the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of M.I.T. not be used in advertising
 * or publicity pertaining to distribution of the software without specific,
 * written prior permission.  M.I.T. makes no representations about the
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
/* 
 *  [ ctwm ]
 *
 *  Copyright 1992 Claude Lecommandeur.
 *            
 * Permission to use, copy, modify  and distribute this software  [ctwm] and
 * its documentation for any purpose is hereby granted without fee, provided
 * that the above  copyright notice appear  in all copies and that both that
 * copyright notice and this permission notice appear in supporting documen-
 * tation, and that the name of  Claude Lecommandeur not be used in adverti-
 * sing or  publicity  pertaining to  distribution of  the software  without
 * specific, written prior permission. Claude Lecommandeur make no represen-
 * tations  about the suitability  of this software  for any purpose.  It is
 * provided "as is" without express or implied warranty.
 *
 * Claude Lecommandeur DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL  IMPLIED WARRANTIES OF  MERCHANTABILITY AND FITNESS.  IN NO
 * EVENT SHALL  Claude Lecommandeur  BE LIABLE FOR ANY SPECIAL,  INDIRECT OR
 * CONSEQUENTIAL  DAMAGES OR ANY  DAMAGES WHATSOEVER  RESULTING FROM LOSS OF
 * USE, DATA  OR PROFITS,  WHETHER IN AN ACTION  OF CONTRACT,  NEGLIGENCE OR
 * OTHER  TORTIOUS ACTION,  ARISING OUT OF OR IN  CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 *
 * Author:  Claude Lecommandeur [ lecom@sic.epfl.ch ][ April 1992 ]
 */

/***********************************************************************
 *
 * $XConsortium: cursor.c,v 1.10 89/12/14 14:52:23 jim Exp $
 *
 * cursor creation code
 *
 * 05-Apr-89 Thomas E. LaStrange	File created
 *
 * Do the necessary modification to be integrated in ctwm.
 * Can no longer be used for the standard twm.
 *
 * 22-April-92 Claude Lecommandeur.
 *
 *
 ***********************************************************************/

#include <stdio.h>
#include "twm.h"
#ifdef VMS
#include <decw$include/Xos.h>
#else
#include <X11/Xos.h>
#endif
#include "screen.h"
#include "util.h"
#include "cursor.h"

static struct _CursorName {
    char		*name;
    unsigned int	shape;
    Cursor		cursor;
} cursor_names[] = {

{"X_cursor",		XC_X_cursor,		None},
{"arrow",		XC_arrow,		None},
{"based_arrow_down",	XC_based_arrow_down,    None},
{"based_arrow_up",	XC_based_arrow_up,      None},
{"boat",		XC_boat,		None},
{"bogosity",		XC_bogosity,		None},
{"bottom_left_corner",	XC_bottom_left_corner,  None},
{"bottom_right_corner",	XC_bottom_right_corner, None},
{"bottom_side",		XC_bottom_side,		None},
{"bottom_tee",		XC_bottom_tee,		None},
{"box_spiral",		XC_box_spiral,		None},
{"center_ptr",		XC_center_ptr,		None},
{"circle",		XC_circle,		None},
{"clock",		XC_clock,		None},
{"coffee_mug",		XC_coffee_mug,		None},
{"cross",		XC_cross,		None},
{"cross_reverse",	XC_cross_reverse,       None},
{"crosshair",		XC_crosshair,		None},
{"diamond_cross",	XC_diamond_cross,       None},
{"dot",			XC_dot,			None},
{"dotbox",		XC_dotbox,		None},
{"double_arrow",	XC_double_arrow,	None},
{"draft_large",		XC_draft_large,		None},
{"draft_small",		XC_draft_small,		None},
{"draped_box",		XC_draped_box,		None},
{"exchange",		XC_exchange,		None},
{"fleur",		XC_fleur,		None},
{"gobbler",		XC_gobbler,		None},
{"gumby",		XC_gumby,		None},
{"hand1",		XC_hand1,		None},
{"hand2",		XC_hand2,		None},
{"heart",		XC_heart,		None},
{"icon",		XC_icon,		None},
{"iron_cross",		XC_iron_cross,		None},
{"left_ptr",		XC_left_ptr,		None},
{"left_side",		XC_left_side,		None},
{"left_tee",		XC_left_tee,		None},
{"leftbutton",		XC_leftbutton,		None},
{"ll_angle",		XC_ll_angle,		None},
{"lr_angle",		XC_lr_angle,		None},
{"man",			XC_man,			None},
{"middlebutton",	XC_middlebutton,	None},
{"mouse",		XC_mouse,		None},
{"pencil",		XC_pencil,		None},
{"pirate",		XC_pirate,		None},
{"plus",		XC_plus,		None},
{"question_arrow",	XC_question_arrow,	None},
{"right_ptr",		XC_right_ptr,		None},
{"right_side",		XC_right_side,		None},
{"right_tee",		XC_right_tee,		None},
{"rightbutton",		XC_rightbutton,		None},
{"rtl_logo",		XC_rtl_logo,		None},
{"sailboat",		XC_sailboat,		None},
{"sb_down_arrow",	XC_sb_down_arrow,       None},
{"sb_h_double_arrow",	XC_sb_h_double_arrow,   None},
{"sb_left_arrow",	XC_sb_left_arrow,       None},
{"sb_right_arrow",	XC_sb_right_arrow,      None},
{"sb_up_arrow",		XC_sb_up_arrow,		None},
{"sb_v_double_arrow",	XC_sb_v_double_arrow,   None},
{"shuttle",		XC_shuttle,		None},
{"sizing",		XC_sizing,		None},
{"spider",		XC_spider,		None},
{"spraycan",		XC_spraycan,		None},
{"star",		XC_star,		None},
{"target",		XC_target,		None},
{"tcross",		XC_tcross,		None},
{"top_left_arrow",	XC_top_left_arrow,      None},
{"top_left_corner",	XC_top_left_corner,	None},
{"top_right_corner",	XC_top_right_corner,    None},
{"top_side",		XC_top_side,		None},
{"top_tee",		XC_top_tee,		None},
{"trek",		XC_trek,		None},
{"ul_angle",		XC_ul_angle,		None},
{"umbrella",		XC_umbrella,		None},
{"ur_angle",		XC_ur_angle,		None},
{"watch",		XC_watch,		None},
{"xterm",		XC_xterm,		None},
};

void NewFontCursor (Cursor *cp, char *str)
{
    int i;

    for (i = 0; i < sizeof(cursor_names)/sizeof(struct _CursorName); i++)
    {
	if (strcmp(str, cursor_names[i].name) == 0)
	{
	    if (cursor_names[i].cursor == None)
		cursor_names[i].cursor = XCreateFontCursor(dpy,
			cursor_names[i].shape);
	    *cp = cursor_names[i].cursor;
	    return;
	}
    }
    fprintf (stderr, "%s:  unable to find font cursor \"%s\"\n", 
	     ProgramName, str);
}

int NewBitmapCursor(Cursor *cp, char *source, char *mask)
{
    XColor fore, back;
    int hotx, hoty;
    int sx, sy, mx, my;
    unsigned int sw, sh, mw, mh;
    Pixmap spm, mpm;
    Colormap cmap = Scr->RootColormaps.cwins[0]->colormap->c;

    fore.pixel = Scr->Black;
    XQueryColor(dpy, cmap, &fore);
    back.pixel = Scr->White;
    XQueryColor(dpy, cmap, &back);

    spm = GetBitmap(source);
    if ((hotx = HotX) < 0) hotx = 0;
    if ((hoty = HotY) < 0) hoty = 0;
    mpm = GetBitmap(mask);

    /* make sure they are the same size */

    XGetGeometry(dpy, spm, &JunkRoot, &sx, &sy, &sw, &sh, &JunkBW,&JunkDepth);
    XGetGeometry(dpy, mpm, &JunkRoot, &mx, &my, &mw, &mh, &JunkBW,&JunkDepth);
    if (sw != mw || sh != mh)
    {
	fprintf (stderr, 
		 "%s:  cursor bitmaps \"%s\" and \"%s\" not the same size\n",
		 ProgramName, source, mask);
	return (1);
    }
    *cp = XCreatePixmapCursor(dpy, spm, mpm, &fore, &back, hotx,hoty);
    return (0);
}

Cursor MakeStringCursor (char *string)
{
    Cursor	cursor;
    XColor	black, white;
    Pixmap	bitmap;
    unsigned int width, height, middle;
    GC		gc;
    Colormap	cmap = Scr->RootColormaps.cwins[0]->colormap->c;
    MyFont	myfont = Scr->TitleBarFont;
    XRectangle inc_rect;
    XRectangle logical_rect;

    black.pixel = Scr->Black;
    XQueryColor (dpy, cmap, &black);
    white.pixel = Scr->White;
    XQueryColor (dpy, cmap, &white);

    XmbTextExtents (myfont.font_set, string, strlen (string),
		       &inc_rect, &logical_rect);
    width  = logical_rect.width  + 4;
    height = logical_rect.height + 2;
    middle = myfont.ascent;
    /*XQueryBestCursor (dpy, Scr->Root, width, height, &rwidth, &rheight);*/

    bitmap = XCreatePixmap (dpy, Scr->Root, width, height, 1);
    gc     = XCreateGC (dpy, bitmap, 0L, NULL);

    XSetForeground (dpy, gc, 0L);
    XFillRectangle (dpy, bitmap, gc, 0, 0, width, height);
    XSetForeground (dpy, gc, 1L);
    XDrawRectangle (dpy, bitmap, gc, 0, 0, width - 1, height - 1);

    XmbDrawString (dpy, bitmap, myfont.font_set,
		     gc, 2, middle, string, strlen (string));

    cursor = XCreatePixmapCursor (dpy, bitmap, None, &black, &white, 0, 0);
    XFreePixmap (dpy, bitmap);
    XFreeGC (dpy, gc);
    return (cursor);
}