Added the 7-segment example
This commit is contained in:
Markus Gans
parent
2270f4cde5
commit
b0febda5b4
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@ -3,6 +3,8 @@
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via regular expression (regex)
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* Now FLineEdit can define a maximum character length for the input
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* The cursor position can now be set directly in FLineEdit
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* Added the 7-segment example to demonstrate the use of FTermBuffer
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and FLineEdit input filters
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2019-02-07 Markus Gans <guru.mail@muenster.de>
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* Add a "dynamic layout" Chapter into the first steps document
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@ -0,0 +1,210 @@
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#! /bin/bash
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# 7segment - temporary wrapper script for .libs/7segment
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# Generated by libtool (GNU libtool) 2.4.6 Debian-2.4.6-2
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#
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# The 7segment program cannot be directly executed until all the libtool
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# libraries that it depends on are installed.
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#
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# This wrapper script should never be moved out of the build directory.
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# If it is, it will not operate correctly.
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# Sed substitution that helps us do robust quoting. It backslashifies
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# metacharacters that are still active within double-quoted strings.
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sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
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# Be Bourne compatible
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if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
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emulate sh
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NULLCMD=:
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# Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
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# is contrary to our usage. Disable this feature.
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alias -g '${1+"$@"}'='"$@"'
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setopt NO_GLOB_SUBST
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else
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case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
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fi
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BIN_SH=xpg4; export BIN_SH # for Tru64
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DUALCASE=1; export DUALCASE # for MKS sh
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# The HP-UX ksh and POSIX shell print the target directory to stdout
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# if CDPATH is set.
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(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
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relink_command=""
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# This environment variable determines our operation mode.
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if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
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# install mode needs the following variables:
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generated_by_libtool_version='2.4.6'
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notinst_deplibs=' /usr/local/src/MyProgs/finalcut/src/.libs/libfinal.la'
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else
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# When we are sourced in execute mode, $file and $ECHO are already set.
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if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
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file="$0"
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# A function that is used when there is no print builtin or printf.
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func_fallback_echo ()
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{
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eval 'cat <<_LTECHO_EOF
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$1
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_LTECHO_EOF'
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}
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ECHO="printf %s\\n"
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fi
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# Very basic option parsing. These options are (a) specific to
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# the libtool wrapper, (b) are identical between the wrapper
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# /script/ and the wrapper /executable/ that is used only on
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# windows platforms, and (c) all begin with the string --lt-
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# (application programs are unlikely to have options that match
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# this pattern).
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#
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# There are only two supported options: --lt-debug and
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# --lt-dump-script. There is, deliberately, no --lt-help.
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#
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# The first argument to this parsing function should be the
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# script's ../libtool value, followed by no.
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lt_option_debug=
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func_parse_lt_options ()
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{
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lt_script_arg0=$0
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shift
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for lt_opt
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do
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case "$lt_opt" in
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--lt-debug) lt_option_debug=1 ;;
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--lt-dump-script)
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lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'`
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test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=.
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lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'`
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cat "$lt_dump_D/$lt_dump_F"
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exit 0
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;;
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--lt-*)
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$ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2
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exit 1
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;;
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esac
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done
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# Print the debug banner immediately:
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if test -n "$lt_option_debug"; then
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echo "7segment:7segment:$LINENO: libtool wrapper (GNU libtool) 2.4.6 Debian-2.4.6-2" 1>&2
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fi
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}
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# Used when --lt-debug. Prints its arguments to stdout
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# (redirection is the responsibility of the caller)
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func_lt_dump_args ()
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{
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lt_dump_args_N=1;
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for lt_arg
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do
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$ECHO "7segment:7segment:$LINENO: newargv[$lt_dump_args_N]: $lt_arg"
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lt_dump_args_N=`expr $lt_dump_args_N + 1`
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done
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}
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# Core function for launching the target application
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func_exec_program_core ()
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{
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if test -n "$lt_option_debug"; then
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$ECHO "7segment:7segment:$LINENO: newargv[0]: $progdir/$program" 1>&2
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func_lt_dump_args ${1+"$@"} 1>&2
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fi
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exec "$progdir/$program" ${1+"$@"}
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$ECHO "$0: cannot exec $program $*" 1>&2
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exit 1
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}
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# A function to encapsulate launching the target application
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# Strips options in the --lt-* namespace from $@ and
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# launches target application with the remaining arguments.
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func_exec_program ()
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{
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case " $* " in
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*\ --lt-*)
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for lt_wr_arg
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do
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case $lt_wr_arg in
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--lt-*) ;;
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*) set x "$@" "$lt_wr_arg"; shift;;
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esac
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shift
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done ;;
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esac
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func_exec_program_core ${1+"$@"}
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}
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# Parse options
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func_parse_lt_options "$0" ${1+"$@"}
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# Find the directory that this script lives in.
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thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
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test "x$thisdir" = "x$file" && thisdir=.
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# Follow symbolic links until we get to the real thisdir.
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file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
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while test -n "$file"; do
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destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
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# If there was a directory component, then change thisdir.
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if test "x$destdir" != "x$file"; then
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case "$destdir" in
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[\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
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*) thisdir="$thisdir/$destdir" ;;
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esac
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fi
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file=`$ECHO "$file" | /bin/sed 's%^.*/%%'`
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file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
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done
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# Usually 'no', except on cygwin/mingw when embedded into
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# the cwrapper.
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WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
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if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
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# special case for '.'
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if test "$thisdir" = "."; then
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thisdir=`pwd`
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fi
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# remove .libs from thisdir
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case "$thisdir" in
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*[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;;
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.libs ) thisdir=. ;;
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esac
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fi
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# Try to get the absolute directory name.
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absdir=`cd "$thisdir" && pwd`
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test -n "$absdir" && thisdir="$absdir"
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program='7segment'
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progdir="$thisdir/.libs"
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if test -f "$progdir/$program"; then
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# Add our own library path to LD_LIBRARY_PATH
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LD_LIBRARY_PATH="/usr/local/src/MyProgs/finalcut/src/.libs:$LD_LIBRARY_PATH"
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# Some systems cannot cope with colon-terminated LD_LIBRARY_PATH
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# The second colon is a workaround for a bug in BeOS R4 sed
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LD_LIBRARY_PATH=`$ECHO "$LD_LIBRARY_PATH" | /bin/sed 's/::*$//'`
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export LD_LIBRARY_PATH
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if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
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# Run the actual program with our arguments.
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func_exec_program ${1+"$@"}
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fi
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else
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# The program doesn't exist.
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$ECHO "$0: error: '$progdir/$program' does not exist" 1>&2
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$ECHO "This script is just a wrapper for $program." 1>&2
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$ECHO "See the libtool documentation for more information." 1>&2
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exit 1
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fi
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fi
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@ -0,0 +1,207 @@
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#include <final/final.h>
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using finalcut::FColorPair;
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using finalcut::FPoint;
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using finalcut::FSize;
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//----------------------------------------------------------------------
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// class TextWindow
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//----------------------------------------------------------------------
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#pragma pack(push)
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#pragma pack(1)
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class SegmentView : public finalcut::FDialog
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{
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public:
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explicit SegmentView (finalcut::FWidget* = nullptr);
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private:
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// Typedef
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typedef struct
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{
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unsigned char a : 1;
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unsigned char b : 1;
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unsigned char c : 1;
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unsigned char d : 1;
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unsigned char e : 1;
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unsigned char f : 1;
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unsigned char g : 1;
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unsigned char : 1; // padding bit
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} sevenSegment;
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// Methods
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void hexEncoding();
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void get7Segment (const wchar_t);
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virtual void draw() override;
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// Data Members
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std::map<wchar_t, sevenSegment> code;
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finalcut::FString line[3];
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finalcut::FLineEdit Input{"0123", this};
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finalcut::FButton Exit{"E&xit", this};
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};
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#pragma pack(pop)
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//----------------------------------------------------------------------
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SegmentView::SegmentView (finalcut::FWidget* parent)
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: FDialog(parent)
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{
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// Set encoding
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hexEncoding();
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// Dialog settings
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setText ("Seven-segment display");
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setGeometry (FPoint(25, 5), FSize(42, 15));
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// Input field
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Input.setGeometry (FPoint(2, 2), FSize(12, 1));
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Input.setLabelText (L"&Hex value");
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Input.setLabelText (L"&Hex-digits or (.) (:) (H) (L) (P) (U)");
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Input.setLabelOrientation(finalcut::FLineEdit::label_above);
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Input.setMaxLength(9);
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Input.setInputFilter("[:.hHlLpPuU[:xdigit:]]");
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// Exit button
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Exit.setGeometry(FPoint(28, 11), FSize(10, 1));
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// Add some function callbacks
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Input.addCallback
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(
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"changed",
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[] (finalcut::FWidget*, FDataPtr data)
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{
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auto dialog = static_cast<SegmentView*>(data);
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dialog->redraw();
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},
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this
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);
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Exit.addCallback
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(
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"clicked",
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F_METHOD_CALLBACK (this, &finalcut::FApplication::cb_exitApp)
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);
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}
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//----------------------------------------------------------------------
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void SegmentView::hexEncoding()
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{
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code['0'] = sevenSegment{1, 1, 1, 1, 1, 1, 0};
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code['1'] = sevenSegment{0, 1, 1, 0, 0, 0, 0};
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code['2'] = sevenSegment{1, 1, 0, 1, 1, 0, 1};
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code['3'] = sevenSegment{1, 1, 1, 1, 0, 0, 1};
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code['4'] = sevenSegment{0, 1, 1, 0, 0, 1, 1};
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code['5'] = sevenSegment{1, 0, 1, 1, 0, 1, 1};
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code['6'] = sevenSegment{1, 0, 1, 1, 1, 1, 1};
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code['7'] = sevenSegment{1, 1, 1, 0, 0, 0, 0};
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code['8'] = sevenSegment{1, 1, 1, 1, 1, 1, 1};
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code['9'] = sevenSegment{1, 1, 1, 1, 0, 1, 1};
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code['A'] = sevenSegment{1, 1, 1, 0, 1, 1, 1};
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code['B'] = sevenSegment{0, 0, 1, 1, 1, 1, 1};
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code['C'] = sevenSegment{1, 0, 0, 1, 1, 1, 0};
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code['D'] = sevenSegment{0, 1, 1, 1, 1, 0, 1};
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code['E'] = sevenSegment{1, 0, 0, 1, 1, 1, 1};
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code['F'] = sevenSegment{1, 0, 0, 0, 1, 1, 1};
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}
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//----------------------------------------------------------------------
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void SegmentView::get7Segment (const wchar_t c)
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{
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sevenSegment& s = code[c];
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constexpr char h[2]{' ', '_'};
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constexpr char v[2]{' ', '|'};
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for (int i = 0; i < 3; i++)
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line[i].clear();
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switch ( c )
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{
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case ':':
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line[0] = ' ';
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line[1] = '.';
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line[2] = '.';
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break;
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case '.':
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line[0] = ' ';
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line[1] = ' ';
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line[2] = '.';
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break;
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case 'H':
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line[0] = " ";
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line[1] = "|_|";
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line[2] = "| |";
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break;
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case 'L':
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line[0] = " ";
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line[1] = "| ";
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line[2] = "|_ ";
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break;
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case 'P':
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line[0] = " _ ";
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line[1] = "|_|";
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line[2] = "| ";
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break;
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case 'U':
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line[0] = " ";
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line[1] = "| |";
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line[2] = "|_|";
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break;
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default:
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// Hexadecimal digit from 0 up to f
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line[0] << ' ' << h[s.a] << ' ';
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line[1] << v[s.f] << h[s.g] << v[s.b];
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line[2] << v[s.e] << h[s.d] << v[s.c];
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}
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}
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//----------------------------------------------------------------------
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void SegmentView::draw()
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{
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std::vector<finalcut::FTermBuffer> tbuffer{3};
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finalcut::FTermBuffer left_space{};
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FDialog::draw();
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setColor(finalcut::fc::LightGray, finalcut::fc::Black);
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FWidget::drawBorder(3, 6, 40, 11);
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for (auto&& ch : Input.getText().toUpper())
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{
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FColorPair color(finalcut::fc::LightRed, finalcut::fc::Black);
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get7Segment(ch);
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for (std::size_t i = 0; i < 3; i++)
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tbuffer[i] << color << line[i] << " ";
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}
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std::size_t length = tbuffer[0].getLength();
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if ( length < 36 )
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left_space << finalcut::FString(36 - length, ' ');
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print() << FPoint (4, 7) << left_space << tbuffer[0]
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<< FPoint (4, 8) << left_space << tbuffer[1]
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<< FPoint (4, 9) << left_space << tbuffer[2]
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<< FPoint (4, 10) << finalcut::FString(36, ' ');
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}
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//----------------------------------------------------------------------
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// main part
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//----------------------------------------------------------------------
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int main (int argc, char* argv[])
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{
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finalcut::FApplication app(argc, argv);
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SegmentView dialog(&app);
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app.setMainWidget(&dialog);
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dialog.show();
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return app.exec();
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}
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@ -11,6 +11,7 @@ noinst_PROGRAMS = \
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hello \
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dialog \
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input-dialog \
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7segment \
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choice \
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listbox \
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listview \
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@ -35,6 +36,7 @@ noinst_PROGRAMS = \
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hello_SOURCES = hello.cpp
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dialog_SOURCES = dialog.cpp
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input_dialog_SOURCES = input-dialog.cpp
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7segment_SOURCES = 7segment.cpp
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choice_SOURCES = choice.cpp
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listbox_SOURCES = listbox.cpp
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listview_SOURCES = listview.cpp
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@ -1091,7 +1091,7 @@ bool FString::operator == (const FString& s) const
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if ( ! (string || s.string) )
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return true;
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if ( bool(string) != bool(s.string) )
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if ( bool(string) != bool(s.string) || length != s.length )
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return false;
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return ( std::wcscmp(string, s.string) == 0 );
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@ -1103,7 +1103,7 @@ bool FString::operator != (const FString& s) const
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if ( ! (string || s.string) )
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return false;
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if ( bool(string) != bool(s.string) )
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if ( bool(string) != bool(s.string) || length != s.length )
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return true;
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return ( std::wcscmp(string, s.string) != 0 );
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