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//
// "$Id: GsWidget.H,v 1.4 2005/01/27 21:07:09 hofmann Exp $"
//
// X11 header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 2004 by Johannes Hofmann
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
#ifndef GsWidget_H
#define GsWidget_H
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/x.H>
#include "PostscriptDSC.H"
class GsWidget : public Fl_Widget {
private:
PostscriptDSC *dsc;
int gs_win;
Atom atoms[5];
pid_t gs_pid;
int display_x, display_y;
int in_fd, reload_needed;
int zoom_percent;
int initial_width, initial_height;
int feeding;
protected:
int page;
Fl_Offscreen offscreen;
int xdpi, ydpi;
int paper_x, paper_y;
void draw();
public:
GsWidget(int X,int Y,int W, int H);
~GsWidget();
int open_file(char *f);
int open_file(int fd);
int load();
int load_page(int p);
int reload();
int next();
int prev();
int handleX11(int ev);
int zoom(int p);
int get_page();
int get_pages();
private:
void setProps();
void exec_gs();
void kill_gs();
int fd_copy(int to, int from, size_t len);
bool gs_active();
};
#endif
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