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LDP/LDP/howto/docbook/NCURSES-Programming-HOWTO/resources/ncurses_programs/gui.sh

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#!/bin/bash
# Front end to the ncurses programs compilation and run
# Implemented using 'dialog' which inturn uses ncurses
# Author: N N Ashok (nnashok@yahoo.com)
# Date: 07/15/2002
#
# Modified by: Pradeep Padala (ppadala@cise.ufl.edu)
# Notes:
# Basics:
# Makefile does not build acs_vars
# Done: hello_world: Nothing displayed to user??
# Done: init_func_example: Nothing displayed to user??
# Done: key_code: Does not exit with status 0
# mouse_menu: Didnot work for me. Had to hit ^C
# Done: simple_attr: The output does not stay, is scrolled fast
# Done: simple_color: Nothing displayed to user??
# temp_leave: When executed using the gui, the tty is not reset. Nothing
# echos to the screen
# Done: with_chgat: Nothing displayed to user??
# with_chgat: Does not indicate how to exit
#
# Forms:
# None of the programs indicate how to exit. F1 exits the program.
# Menus:
# menu_simple does not indicate how to exit. F1 exits the program.
# menu_win does not indicate how to exit. F1 exits the program.
# Panels:
# panel_resize: It seg faulted when I was resizing. Probably
# the size had gone to negative value (I cant see the size being reduced,
# only after I press the Enter do I see the new size).
# panel_simple: Exists as soon as I press any key.
# Modified source files:
# basics/hello_world.c
# basics/init_func_example.c
# basics/key_code.c
# basics/simple_attr.c
# basics/simple_color.c
# basics/with_chgat.c
# Constants used
TRUE=0;
FALSE=-1;
EXEC_DIR="../demo/exe";
TEMP_FILE="/tmp/make.out";
tmp="tmp.out"
# Function declarations
# execMake: Function to execute 'make'
# Arguments:
# clean: Spcifies to do a 'make clean'
execMake()
{
local clean;
local result;
# Check for arguments
if [ "$1" == "clean" ]
then
clean="clean";
else
clean="";
fi
make $clean > $TEMP_FILE 2>&1
result=$?;
return $result;
}
# source_menu: Function to display the source code menu
# Arguments: None
source_menu()
{
local menu_items;
files_c=`ls *.c`;
files=`echo $files_c | sed -e 's/\.c//g'`;
title="Source code";
command_options="";
# Set to 1 to include the "Previous" entry and an extra space at the end
menu_items=2;
for i in $files
do
command_options="$command_options $i $i.c";
menu_items=`expr $menu_items + 1`;
done;
if [ $menu_items -gt 13 ]
then
menu_items=13;
fi
# While the user selects some menu option, repeat
statusSource=0;
while (test "$statusSource" = "0")
do
dialog --clear --menu "$title" 20 60 $menu_items $command_options Previous "Return to previous screen" 2>$tmp
resultSource=`cat $tmp`;
statusSource=`echo $?`;
# None of the programs need additional arguments and all exit
# normally (^C not required to exit)
if [ $statusSource -eq 0 ]
then
if [ "$resultSource" == "Previous" ]
then
statusSource=1;
else
if [ -n "$EDITOR" ]
then
$EDITOR $resultSource.c;
else
dialog --clear --msgbox "EDITOR environment variable is not set. Please set it to your favorite editor and rerun the program." 10 40;
return $FALSE;
fi
fi
fi
done
return $TRUE;
}
# runBasics: Function to run the programs in the Basics category
# Arguments: None
runBasics()
{
local cwd;
local progs_array;
local title;
local count;
local command_options;
local statusRunBasics;
local resultRunBasics;
local string_args;
# Programs to run
progs_array[1]="acs_vars";
progs_array[2]="hello_world";
progs_array[3]="init_func_example";
progs_array[4]="key_code";
progs_array[5]="mouse_menu";
progs_array[6]="other_border";
progs_array[7]="printw_example";
progs_array[8]="scanw_example";
progs_array[9]="simple_attr";
progs_array[10]="simple_color";
progs_array[11]="simple_key";
progs_array[12]="temp_leave";
progs_array[13]="win_border";
progs_array[14]="with_chgat";
# Save current directory
cwd=`pwd`;
cd $EXEC_DIR;
if [ $? -ne 0 ]
then
dialog --clear --msgbox "Unable to change to $EXEC_DIR" 5 40;
return $FALSE;
fi
title="Basics";
# Number of programs
count=14;
command_options="";
while [ $count -gt 0 ]
do
command_options="$command_options ${progs_array[$count]} ${progs_array[$count]}";
count=`expr $count - 1`;
done
# While the user selects some menu option, repeat
statusRunBasics=0;
while (test "$statusRunBasics" = "0")
do
dialog --clear --menu "$title" 20 60 12 $command_options Previous "Return to previous screen" 2>$tmp
resultRunBasics=`cat $tmp`;
statusRunBasics=`echo $?`;
# None of the programs except "simple_attr" need additional
# arguments and all exit normally (^C not required to exit)
if [ $statusRunBasics -eq 0 ]
then
if [ "$resultRunBasics" == "Previous" ]
then
statusRunBasics=1;
elif [ "$resultRunBasics" == "simple_attr" ]
then
dialog --clear --inputbox "Enter the name of a C file (pwd: demo/exe)" 10 60 2>$tmp
string_arg=`cat $tmp`;
if [ $? -eq 0 ]
then
./$resultRunBasics $string_arg 2>$TEMP_FILE;
if [ $? -ne 0 ]
then
echo "
Unable to run './$resultRunBasics'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
fi
else
./$resultRunBasics 2> $TEMP_FILE;
if [ $? -ne 0 ]
then
if [ `wc -c $TEMP_FILE | awk {'print \$1'}` -ne 0 ]
then
echo "
Unable to run './$resultRunBasics'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
fi
fi
fi
done
cd $cwd;
if [ $? -ne 0 ]
then
dialog --clear --msgbox "Unable to change to $cwd" 5 40;
return $FALSE;
fi
return $TRUE;
}
# runForms: Function to run the programs in the Forms category
# Arguments: None
runForms()
{
local cwd;
local progs_array;
local title;
local count;
local command_options;
local statusRunForms;
local resultRunForms;
# Programs to run
progs_array[1]="form_attrib";
progs_array[2]="form_options";
progs_array[3]="form_simple";
progs_array[4]="form_win";
# Save current directory
cwd=`pwd`;
cd $EXEC_DIR;
if [ $? -ne 0 ]
then
dialog --clear --msgbox "Unable to change to $EXEC_DIR" 5 40;
return $FALSE;
fi
title="Forms";
# Number of programs
count=4;
command_options="";
while [ $count -gt 0 ]
do
command_options="$command_options ${progs_array[$count]} ${progs_array[$count]}";
count=`expr $count - 1`;
done
# While the user selects some menu option, repeat
statusRunForms=0;
while (test "$statusRunForms" = "0")
do
dialog --clear --menu "$title" 20 60 7 $command_options Previous "Return to previous screen" 2>$tmp
resultRunForms=`cat $tmp`;
statusRunForms=`echo $?`;
# None of the programs need additional arguments and all exit
# normally (^C not required to exit)
if [ $statusRunForms -eq 0 ]
then
if [ "$resultRunForms" == "Previous" ]
then
statusRunForms=1;
else
./$resultRunForms 2> $TEMP_FILE;
if [ $? -ne 0 ]
then
if [ `wc -c $TEMP_FILE | awk {'print \$1'}` -ne 0 ]
then
echo "
Unable to run './$resultRunForms'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
fi
fi
fi
done
cd $cwd;
if [ $? -ne 0 ]
then
dialog --clear --msgbox "Unable to change to $cwd" 5 40;
return $FALSE;
fi
return $TRUE;
}
# runMenus: Function to run the programs in the Menus category
# Arguments: None
runMenus()
{
local cwd;
local progs_array;
local title;
local count;
local command_options;
local statusRunMenus;
local resultRunMenus;
# Programs to run
progs_array[1]="menu_attrib";
progs_array[2]="menu_item_data";
progs_array[3]="menu_multi_column";
progs_array[4]="menu_scroll";
progs_array[5]="menu_simple";
progs_array[6]="menu_toggle";
progs_array[7]="menu_userptr";
progs_array[8]="menu_win";
# Save current directory
cwd=`pwd`;
cd $EXEC_DIR;
if [ $? -ne 0 ]
then
dialog --clear --msgbox "Unable to change to $EXEC_DIR" 5 40;
return $FALSE;
fi
title="Menus";
# Number of programs
count=8;
command_options="";
while [ $count -gt 0 ]
do
command_options="$command_options ${progs_array[$count]} ${progs_array[$count]}";
count=`expr $count - 1`;
done
# While the user selects some menu option, repeat
statusRunMenus=0;
while (test "$statusRunMenus" = "0")
do
dialog --clear --menu "$title" 20 60 10 $command_options Previous "Return to previous screen" 2>$tmp
resultRunMenus=`cat $tmp`;
statusRunMenus=`echo $?`;
# None of the programs need additional arguments and all exit
# normally (^C not required to exit)
if [ $statusRunMenus -eq 0 ]
then
if [ "$resultRunMenus" == "Previous" ]
then
statusRunMenus=1;
else
./$resultRunMenus 2> $TEMP_FILE;
if [ $? -ne 0 ]
then
if [ `wc -c $TEMP_FILE | awk {'print \$1'}` -ne 0 ]
then
echo "
Unable to run './$resultRunMenus'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
fi
fi
fi
done
cd $cwd;
if [ $? -ne 0 ]
then
dialog --clear --msgbox "Unable to change to $cwd" 5 40;
return $FALSE;
fi
return $TRUE;
}
# runPanels: Function to run the programs in the Panels category
# Arguments: None
runPanels()
{
local cwd;
local progs_array;
local title;
local count;
local command_options;
local statusRunPanels;
local resultRunPanels;
# Programs to run
progs_array[1]="panel_browse";
progs_array[2]="panel_hide";
progs_array[3]="panel_resize";
progs_array[4]="panel_simple";
# Save current directory
cwd=`pwd`;
cd $EXEC_DIR;
if [ $? -ne 0 ]
then
dialog --clear --msgbox "Unable to change to $EXEC_DIR" 5 40;
return $FALSE;
fi
title="Panels";
# Number of programs
count=8;
command_options="";
while [ $count -gt 0 ]
do
command_options="$command_options ${progs_array[$count]} ${progs_array[$count]}";
count=`expr $count - 1`;
done
# While the user selects some menu option, repeat
statusRunPanels=0;
while (test "$statusRunPanels" = "0")
do
dialog --clear --menu "$title" 20 60 7 $command_options Previous "Return to previous screen" 2>$tmp
resultRunPanels=`cat $tmp`;
statusRunPanels=`echo $?`;
# None of the programs need additional arguments and all exit
# normally (^C not required to exit)
if [ $statusRunPanels -eq 0 ]
then
if [ "$resultRunPanels" == "Previous" ]
then
statusRunPanels=1;
else
./$resultRunPanels 2> $TEMP_FILE;
if [ $? -ne 0 ]
then
if [ `wc -c $TEMP_FILE | awk {'print \$1'}` -ne 0 ]
then
echo "
Unable to run './$resultRunPanels'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
fi
fi
fi
done
cd $cwd;
if [ $? -ne 0 ]
then
dialog --clear --msgbox "Unable to change to $cwd" 5 40;
return $FALSE;
fi
return $TRUE;
}
# runJustForFun: Function to run the programs in the JustForFun category
# Arguments: None
runJustForFun()
{
local cwd;
local progs_array;
local title;
local count;
local command_options;
local statusRunJustForFun;
local resultRunJustForFun;
local num_arg;
# Programs to run
progs_array[1]="hanoi";
progs_array[2]="life";
progs_array[3]="magic";
progs_array[4]="queens";
progs_array[5]="shuffle";
progs_array[6]="tt";
# Save current directory
cwd=`pwd`;
cd $EXEC_DIR;
if [ $? -ne 0 ]
then
dialog --clear --msgbox "Unable to change to $EXEC_DIR" 5 40;
return $FALSE;
fi
title="Just For Fun";
# Number of programs
count=6;
command_options="";
while [ $count -gt 0 ]
do
command_options="$command_options ${progs_array[$count]} ${progs_array[$count]}";
count=`expr $count - 1`;
done
# While the user selects some menu option, repeat
statusRunJustForFun=0;
while (test "$statusRunJustForFun" = "0")
do
resultRunJustForFun=`dialog --clear --menu "$title" 20 60 10 $command_options Previous "Return to previous screen" 2>&1`;
statusRunJustForFun=`echo $?`;
case "$resultRunJustForFun" in
"hanoi")
./hanoi 2> $TEMP_FILE;
if [ $? -ne 0 ]
then
echo "
Unable to run './hanoi'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
;;
"life")
./life 2> $TEMP_FILE;
if [ $? -ne 0 ]
then
if [ `wc -c $TEMP_FILE | awk {'print \$1'}` -ne 0 ]
then
echo "
Unable to run './hanoi'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
fi
;;
"magic")
num_arg=`dialog --clear --inputbox "Enter the size of the magic square" 10 40 2>&1`;
if [ $? -eq 0 ]
then
# Check if an integer
echo $num_arg | grep -E -e [^0-9];
if [ $? -ne 0 ]
then
./magic $num_arg 2>$TEMP_FILE;
if [ $? -ne 0 ]
then
echo "
Unable to run './magic'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
fi
fi
;;
"queens")
num_arg=`dialog --clear --inputbox "Enter the number of qeens (chess board order) ( > 3)" 10 40 2>&1`;
if [ $? -eq 0 ]
then
# Check if an integer
echo $num_arg | grep -E -e [^0-9];
if [ $? -ne 0 ]
then
./queens $num_arg 2>$TEMP_FILE;
if [ $? -ne 0 ]
then
echo "
Unable to run './queens'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
fi
fi
;;
"shuffle")
num_arg=`dialog --clear --inputbox "Enter the order of the shuffle board" 10 40 2>&1`;
if [ $? -eq 0 ]
then
# Check if an integer
echo $num_arg | grep -E -e [^0-9];
if [ $? -ne 0 ]
then
./shuffle $num_arg 2>$TEMP_FILE;
if [ $? -ne 0 ]
then
if [ `wc -c $TEMP_FILE | awk {'print \$1'}` -ne 0 ]
then
echo "
Unable to run './shuffle'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
fi
fi
fi
;;
"tt")
./tt 2>$TEMP_FILE;
if [ $? -ne 0 ]
then
if [ `wc -c $TEMP_FILE | awk {'print \$1'}` -ne 0 ]
then
echo "
Unable to run './tt'" >> $TEMP_FILE;
dialog --clear --textbox $TEMP_FILE 15 60;
fi
fi
;;
Previous)
statusRunJustForFun="1";
;;
esac
done
cd $cwd;
if [ $? -ne 0 ]
then
dialog --clear --msgbox "Unable to change to $cwd" 5 40;
return $FALSE;
fi
return $TRUE;
}
# submenu: Generic function to process submenus (display submenu for a
# category
# Arguments: Title, run_function
# run_function: This function is invoked when the 'Run' item is choosen
submenu()
{
local cwdSubmenu;
local statusSubmenu;
local title
local resultSubmenu;
# Save current working directory
cwdSubmenu=`pwd`;
#While the user selects some menu option, repeat
statusSubmenu=0
title="$1";
while (test "$statusSubmenu" = "0")
do
# Create the main menu dialog box
dialog --clear --menu "NCURSES Programming HOWTO $title Sample Programs" 20 60 8 Make "Make programs" Clean "Clean programs" Run "Run programs" Source "View source code for programs" readme "View the readme file" makefile "View the Makefile" Previous "Return to previous screen" 2>$tmp
resultSubmenu=`cat $tmp`
statusSubmenu=`echo $?`
case $resultSubmenu in
Make)
execMake
if [ $? -eq 0 ]
then
echo "
'make' successful" >> $TEMP_FILE;
else
echo "
Unable to run 'make'" >> $TEMP_FILE;
fi
dialog --clear --textbox $TEMP_FILE 15 60;
;;
Clean)
execMake "clean";
if [ $? -eq 0 ]
then
echo "
'make clean' successful" >> $TEMP_FILE;
else
echo "
Unable to run 'make clean'" >> $TEMP_FILE;
fi
dialog --clear --textbox $TEMP_FILE 15 60;
;;
Run)
# Run the programs: The function name passed
# to this function as $2
$2;
;;
Source)
# Bring up the source code menu
source_menu;
;;
readme)
if [ -n "$EDITOR" ]
then
$EDITOR README;
else
dialog --clear --msgbox "EDITOR environment variable is not set. Please set it to your favorite editor and rerun the program." 10 40;
fi
;;
makefile)
if [ -n "$EDITOR" ]
then
$EDITOR Makefile;
else
dialog --clear --msgbox "EDITOR environment variable is not set. Please set it to your favorite editor and rerun the program." 10 40;
fi
;;
Previous)
statusSubmenu="1";
;;
esac
done
return $TRUE;
}
# Code starts
# Initialize the variables
basics="basics";
forms="forms";
menus="menus";
panels="panels";
JustForFun="JustForFun";
# Save the current working directory
cwd=`pwd`;
#While the user selects some menu option, repeat
status=0
while (test "$status" = "0")
do
#Create the main menu dialog box
dialog --clear --menu "NCURSES Programming HOWTO Sample Programs" 20 60 10 basics "Basics" forms "Forms" menus "Menus" panels "Panels" JustForFun "Just For Fun" makeall "Make all programs" cleanall "Make clean all programs" readme "View the readme file" makefile "View the Makefile" Quit "Quit" 2>$tmp
status=`echo $?`
result=`cat $tmp`
case $result in
basics)
cd $basics || dialog --clear --msgbox "Unable to change to directory $basics" 5 40;
# Call the basics function
submenu "Basics" runBasics;
if [ $? -ne 0 ];
then
dialog --clear --msgbox "Error processing basics" 5 40;
fi
# Change back to the earlier working directory
cd $cwd;
;;
forms)
cd $forms || dialog --clear --msgbox "Unable to change to directory $forms" 5 40;
# Call the forms function
submenu "Forms" runForms;
if [ $? -ne 0 ];
then
dialog --clear --msgbox "Error processing forms" 5 40;
fi
# Change back to the earlier working directory
cd $cwd;
;;
menus)
cd $menus || dialog --clear --msgbox "Unable to change to directory $menus" 5 40;
# Call the menus function
submenu "Menus" runMenus;
if [ $? -ne 0 ];
then
dialog --clear --msgbox "Error processing menus" 5 40;
fi
# Change back to the earlier working directory
cd $cwd;
;;
panels)
cd $panels || dialog --clear --msgbox "Unable to change to directory $panels" 5 40;
# Call the menus function
submenu "Panels" runPanels;
if [ $? -ne 0 ];
then
dialog --clear --msgbox "Error processing panels" 5 40;
fi
# Change back to the earlier working directory
cd $cwd;
;;
JustForFun)
cd $JustForFun || dialog --clear --msgbox "Unable to change to directory $JustForFun" 5 40;
# Call the JustForFun function
submenu "JustForFun" runJustForFun;
if [ $? -ne 0 ];
then
dialog --clear --msgbox "Error processing JustForFun" 5 40;
fi
# Change back to the earlier working directory
cd $cwd;
;;
makeall)
# Call the execMake function
execMake;
if [ $? -eq 0 ]
then
echo "
'make' successful" >> $TEMP_FILE;
else
echo "
Unable to run 'make'" >> $TEMP_FILE;
fi
dialog --clear --textbox $TEMP_FILE 15 60;
;;
cleanall)
# Call the execMake function
execMake "clean";
if [ $? -eq 0 ]
then
echo "
'make clean' successful" >> $TEMP_FILE;
else
echo "
Unable to run 'make clean'" >> $TEMP_FILE;
fi
dialog --clear --textbox $TEMP_FILE 15 60;
;;
readme)
if [ -n "$EDITOR" ]
then
$EDITOR README;
else
dialog --clear --msgbox "EDITOR environment variable is not set. Please set it to your favorite editor and rerun the program." 10 40;
fi
;;
makefile)
if [ -n "$EDITOR" ]
then
$EDITOR Makefile;
else
dialog --clear --msgbox "EDITOR environment variable is not set. Please set it to your favorite editor and rerun the program." 10 40;
fi
;;
Quit)
# Remove the TEMP_FILE
rm -f $TEMP_FILE;
rm -f $tmp;
status="1";
;;
esac
done
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