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cvd_image_viewer.cxx
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cvd_image_viewer.cxx
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/*
This file is part of the CVD Library.
Copyright (C) 2005 The Authors
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <cvd/videodisplay.h>
#include <cvd/image_io.h>
#include <cvd/gl_helpers.h>
#include <X11/keysym.h>
#include <iostream>
using namespace CVD;
using namespace std;
int main(int argc, char** argv)
{
if(argc != 1)
{
cerr << "Error: incorrect arguments\n.";
cerr << "usage: " << argv[0] << " < image\n";
return 1;
}
Image<Rgb<byte> > im;
try
{
img_load(im, cin);
VideoDisplay d(0, 0, im.size().x, im.size().y);
d.select_events(KeyPressMask | ExposureMask);
for(;;)
{
XEvent e;
d.get_event(&e);
if(e.type == KeyPress)
{
KeySym key;
XLookupString(&e.xkey, 0, 0, &key, 0);
if(key == XK_Escape || key == XK_q)
break;
}
else if(e.type == Expose)
glDrawPixels(im);
}
}
catch(Exceptions::All b0rk)
{
cerr << "Error: " << b0rk.what << endl;
return 1;
}
return 0;
}