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/***************************************************************
LanceMan's quickplot --- a fast interactive 2D plotter
Copyright (C) 1998, 1999 Lance Arsenault
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; version 2
of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Or look at http://www.gnu.org/copyleft/gpl.html .
**********************************************************************/
/* $Id: write_pixmap.c,v 1.3 1999/02/27 04:21:59 lance Exp $ */
#include <stdio.h>
#include <math.h>
#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/xpm.h>
#include "xwin.h"
#include "data.h"
extern int Draw_plot(PlotXwins *win, Plot *plot, Drawable drawable,
unsigned int width, unsigned int height);
extern void scale_plot(PlotXwins *win, Plot *plot, unsigned int *w,
unsigned int *h);
static Pixmap pixmap;
/* make a new Pixmap if the width and height have changed
*/
static int remake_plot_pixmap(PlotXwins *win,
Plot *plot, unsigned int width,unsigned int height)
{
static int init = 0;
if(init)
{
XFreePixmap(win->display, pixmap);
init = 1;
}
pixmap = XCreatePixmap(win->display,DefaultRootWindow(win->display),
width, height,
DefaultDepth(win->display,win->screen_number));
if((pixmap == BadAlloc) || (pixmap == BadValue))
{
fprintf(stderr,"quickplot Warning: Can't create pixmap: XCreatePixmap() failed.\n");
return -1; /* error */
}
return 0; /* success */
}
int write_pixmap(PlotXwins *win, Plot *plot)
{
static unsigned int w=0,h=0;
unsigned int width, height;
int returnVal = 0;
char *file;
char str[24];
XtVaSetValues(win->saveButtonWig,
XtNlabel, "Saving ...", NULL);
(void) scale_plot(win,plot,&width, &height);
if(w != width || h != height)
if(remake_plot_pixmap(win,plot,width,height))
return -1; /** error **/
/* Clear all pixels in PixMap to background */
XSetForeground(win->display,win->gc,win->BWbackground_pix);
XFillRectangle(win->display,pixmap,win->gc,0,0,
(int) width-1,(int) height-1);
if(Draw_plot(win,plot,pixmap,width,height))
{
w = width;
h = height;
}
XtVaGetValues(win->saveInputWig, XtNstring, &file, NULL);
if(file == NULL || file[0] == '\0')
{
sprintf(str,"qp%d.xpm",win->savefile_count);
file = str;
XtVaSetValues(win->saveInputWig, XtNstring, str, NULL);
}
if(XpmWriteFileFromPixmap(win->display,file, pixmap,0,NULL))
{
fprintf(stderr,"quickplot Warning: Can't write pixmap to file: %s\n",
file);
returnVal = -1;
}
if(returnVal == 0)
{
char str2[25];
if(plot->flag & VERBOSE)
printf("quickplot Info: saved pixmap file: \"%s\"\n",file);
sprintf(str2,"qp%d.xpm",win->savefile_count);
(win->savefile_count)++;
if(!strcmp(str2,file)) /* if the user didn't edit filename */
{
sprintf(str2,"qp%d.xpm",win->savefile_count);
XtVaSetValues(win->saveInputWig, XtNstring, str2, NULL);
}
}
XtVaSetValues(win->saveButtonWig,
XtNlabel, " Save XPM ", NULL);
return returnVal;
}
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