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/**
** Execbox.h - Execute a command-line program and display its output.
**
** Written: 10/02/02 - JSF
**/
#ifndef INCL_EXECBOX_H
#define INCL_EXECBOX_H 1
/*
Copyright (C) 2002 The Exult Team
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; either version 2
of the License, or (at your option) any later version.
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.
*/
#include <gtk/gtk.h>
class Exec_box;
class Exec_process;
// Called when child is done:
typedef void (*Exec_done_fun)(int exit_code, Exec_box *box,
gpointer user_data);
#ifndef WIN32
/*
* A class for executing a child process and capturing its output in a
* GTK program.
*/
class Exec_process
{
public:
// Function called when data is read
// from child. If datalen == 0,
// child is done & exit_code is set.
typedef void (*Reader_fun)(char *data, int datalen, int exit_code,
gpointer user_data);
private:
// Pipes for talking to child:
int child_stdin, child_stdout, child_stderr;
int child_pid; // Child's process ID.
gint stdout_tag, stderr_tag; // GDK tags for getting child's output.
Reader_fun reader; // Called when data read from child.
void *reader_data; // User data passed back.
public:
Exec_process();
~Exec_process();
void kill_child(); // Kill process.
void read_from_child(int id); // Read and call 'reader'.
// Execute.
bool exec(const char *file, char *argv[], Reader_fun rfun,
void *udata);
bool check_child(int& exit_code); // Is child still running?
};
#else
class Exec_process
{
public:
typedef void (*Reader_fun)(char *data, int datalen, int exit_code,
gpointer user_data);
Exec_process() {}
~Exec_process() {}
void kill_child() {}
void read_from_child(int id) {}
bool exec(const char *file, char *argv[], Reader_fun rfun,
void *udata) { return false; }
bool check_child(int& exit_code) { return false; }
};
#endif
/*
* This class can execute a command-line program and display its output.
*/
class Exec_box
{
Exec_process *executor; // Handles child process.
GtkTextView *box; // Where we show responses.
GtkStatusbar *status; // For showing status.
guint status_ctx; // Context for status.
Exec_done_fun done_fun; // Called when child has exited.
gpointer user_data; // Passed to done_fun.
public:
Exec_box(GtkTextView *b, GtkStatusbar *s, Exec_done_fun dfun = 0,
gpointer udata = 0);
~Exec_box();
void show_status(const char *msg); // Set status bar.
// Handle data from child.
void read_from_child(char *data, int datalen, int exit_code);
void add_message(const char *txt); // Add text to box.
// Execute.
bool exec(const char *file, char *argv[]);
void kill_child(); // End.
};
#endif
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