142 lines
4.2 KiB
C
142 lines
4.2 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 libraries 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: image.c /main/3 1995/11/02 16:07:35 rswiston $ */
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/*
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*/
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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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* image.c - image bouncer for dtscreen, the X Window System lockscreen.
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*
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* Copyright (c) 1991 by Patrick J. Naughton.
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*
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* See dtscreen.c for copying information.
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*
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* Revision History:
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* 29-Jul-90: Written.
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*/
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#include "dtscreen.h"
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#include "xlogo.bit"
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#include <stdlib.h>
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static XImage logo = {
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0, 0, /* width, height */
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0, XYBitmap, 0, /* xoffset, format, data */
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LSBFirst, 8, /* byte-order, bitmap-unit */
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LSBFirst, 8, 1 /* bitmap-bit-order, bitmap-pad, depth */
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};
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#define MAXICONS 256
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typedef struct {
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int x;
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int y;
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} point;
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typedef struct {
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int width;
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int height;
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int nrows;
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int ncols;
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int xb;
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int yb;
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int iconmode;
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int iconcount;
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point icons[MAXICONS];
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long startTime;
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} imagestruct;
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void
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drawimage(perwindow *pwin)
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{
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imagestruct *ip;
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int i;
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ip = (imagestruct *)pwin->data;
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XSetForeground(dsp, pwin->gc, BlackPixelOfScreen(pwin->perscreen->screen));
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for (i = 0; i < ip->iconcount; i++) {
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if (!ip->iconmode)
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XFillRectangle(dsp, pwin->w, pwin->gc,
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ip->xb + xlogo_width * ip->icons[i].x,
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ip->yb + xlogo_height * ip->icons[i].y,
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xlogo_width, xlogo_height);
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ip->icons[i].x = random() % ip->ncols;
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ip->icons[i].y = random() % ip->nrows;
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}
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if (pwin->perscreen->npixels == 2)
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XSetForeground(dsp, pwin->gc, WhitePixelOfScreen(pwin->perscreen->screen));
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for (i = 0; i < ip->iconcount; i++) {
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if (pwin->perscreen->npixels > 2)
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XSetForeground(dsp, pwin->gc,
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pwin->perscreen->pixels[random() % pwin->perscreen->npixels]);
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XPutImage(dsp, pwin->w, pwin->gc, &logo,
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0, 0,
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ip->xb + xlogo_width * ip->icons[i].x,
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ip->yb + xlogo_height * ip->icons[i].y,
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xlogo_width, xlogo_height);
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}
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}
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void
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initimage(perwindow *pwin)
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{
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XWindowAttributes xgwa;
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imagestruct *ip;
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if (pwin->data) free(pwin->data);
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pwin->data = (void *)malloc(sizeof(imagestruct));
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memset(pwin->data, '\0', sizeof(imagestruct));
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ip = (imagestruct *)pwin->data;
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ip->startTime = seconds();
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logo.data = (char *) xlogo_bits;
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logo.width = xlogo_width;
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logo.height = xlogo_height;
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logo.bytes_per_line = (xlogo_width + 7) / 8;
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XGetWindowAttributes(dsp, pwin->w, &xgwa);
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ip->width = xgwa.width;
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ip->height = xgwa.height;
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ip->ncols = ip->width / xlogo_width;
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ip->nrows = ip->height / xlogo_height;
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ip->iconmode = (ip->ncols < 2 || ip->nrows < 2);
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if (ip->iconmode) {
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ip->xb = 0;
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ip->yb = 0;
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ip->iconcount = 1; /* icon mode */
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} else {
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ip->xb = (ip->width - xlogo_width * ip->ncols) / 2;
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ip->yb = (ip->height - xlogo_height * ip->nrows) / 2;
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ip->iconcount = batchcount;
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}
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XSetForeground(dsp, pwin->gc, BlackPixelOfScreen(pwin->perscreen->screen));
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XFillRectangle(dsp, pwin->w, pwin->gc, 0, 0, ip->width, ip->height);
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}
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