Added the 7-segment example

This commit is contained in:
Markus Gans 2019-02-24 20:21:12 +01:00
parent 2270f4cde5
commit b0febda5b4
5 changed files with 423 additions and 2 deletions

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@ -3,6 +3,8 @@
via regular expression (regex) via regular expression (regex)
* Now FLineEdit can define a maximum character length for the input * Now FLineEdit can define a maximum character length for the input
* The cursor position can now be set directly in FLineEdit * The cursor position can now be set directly in FLineEdit
* Added the 7-segment example to demonstrate the use of FTermBuffer
and FLineEdit input filters
2019-02-07 Markus Gans <guru.mail@muenster.de> 2019-02-07 Markus Gans <guru.mail@muenster.de>
* Add a "dynamic layout" Chapter into the first steps document * Add a "dynamic layout" Chapter into the first steps document

210
examples/7segment Executable file
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@ -0,0 +1,210 @@
#! /bin/bash
# 7segment - temporary wrapper script for .libs/7segment
# Generated by libtool (GNU libtool) 2.4.6 Debian-2.4.6-2
#
# The 7segment program cannot be directly executed until all the libtool
# libraries that it depends on are installed.
#
# This wrapper script should never be moved out of the build directory.
# If it is, it will not operate correctly.
# Sed substitution that helps us do robust quoting. It backslashifies
# metacharacters that are still active within double-quoted strings.
sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
# Be Bourne compatible
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
emulate sh
NULLCMD=:
# Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
# is contrary to our usage. Disable this feature.
alias -g '${1+"$@"}'='"$@"'
setopt NO_GLOB_SUBST
else
case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
fi
BIN_SH=xpg4; export BIN_SH # for Tru64
DUALCASE=1; export DUALCASE # for MKS sh
# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
relink_command=""
# This environment variable determines our operation mode.
if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
# install mode needs the following variables:
generated_by_libtool_version='2.4.6'
notinst_deplibs=' /usr/local/src/MyProgs/finalcut/src/.libs/libfinal.la'
else
# When we are sourced in execute mode, $file and $ECHO are already set.
if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
file="$0"
# A function that is used when there is no print builtin or printf.
func_fallback_echo ()
{
eval 'cat <<_LTECHO_EOF
$1
_LTECHO_EOF'
}
ECHO="printf %s\\n"
fi
# Very basic option parsing. These options are (a) specific to
# the libtool wrapper, (b) are identical between the wrapper
# /script/ and the wrapper /executable/ that is used only on
# windows platforms, and (c) all begin with the string --lt-
# (application programs are unlikely to have options that match
# this pattern).
#
# There are only two supported options: --lt-debug and
# --lt-dump-script. There is, deliberately, no --lt-help.
#
# The first argument to this parsing function should be the
# script's ../libtool value, followed by no.
lt_option_debug=
func_parse_lt_options ()
{
lt_script_arg0=$0
shift
for lt_opt
do
case "$lt_opt" in
--lt-debug) lt_option_debug=1 ;;
--lt-dump-script)
lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'`
test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=.
lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'`
cat "$lt_dump_D/$lt_dump_F"
exit 0
;;
--lt-*)
$ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2
exit 1
;;
esac
done
# Print the debug banner immediately:
if test -n "$lt_option_debug"; then
echo "7segment:7segment:$LINENO: libtool wrapper (GNU libtool) 2.4.6 Debian-2.4.6-2" 1>&2
fi
}
# Used when --lt-debug. Prints its arguments to stdout
# (redirection is the responsibility of the caller)
func_lt_dump_args ()
{
lt_dump_args_N=1;
for lt_arg
do
$ECHO "7segment:7segment:$LINENO: newargv[$lt_dump_args_N]: $lt_arg"
lt_dump_args_N=`expr $lt_dump_args_N + 1`
done
}
# Core function for launching the target application
func_exec_program_core ()
{
if test -n "$lt_option_debug"; then
$ECHO "7segment:7segment:$LINENO: newargv[0]: $progdir/$program" 1>&2
func_lt_dump_args ${1+"$@"} 1>&2
fi
exec "$progdir/$program" ${1+"$@"}
$ECHO "$0: cannot exec $program $*" 1>&2
exit 1
}
# A function to encapsulate launching the target application
# Strips options in the --lt-* namespace from $@ and
# launches target application with the remaining arguments.
func_exec_program ()
{
case " $* " in
*\ --lt-*)
for lt_wr_arg
do
case $lt_wr_arg in
--lt-*) ;;
*) set x "$@" "$lt_wr_arg"; shift;;
esac
shift
done ;;
esac
func_exec_program_core ${1+"$@"}
}
# Parse options
func_parse_lt_options "$0" ${1+"$@"}
# Find the directory that this script lives in.
thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
test "x$thisdir" = "x$file" && thisdir=.
# Follow symbolic links until we get to the real thisdir.
file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
while test -n "$file"; do
destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
# If there was a directory component, then change thisdir.
if test "x$destdir" != "x$file"; then
case "$destdir" in
[\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
*) thisdir="$thisdir/$destdir" ;;
esac
fi
file=`$ECHO "$file" | /bin/sed 's%^.*/%%'`
file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
done
# Usually 'no', except on cygwin/mingw when embedded into
# the cwrapper.
WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
# special case for '.'
if test "$thisdir" = "."; then
thisdir=`pwd`
fi
# remove .libs from thisdir
case "$thisdir" in
*[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;;
.libs ) thisdir=. ;;
esac
fi
# Try to get the absolute directory name.
absdir=`cd "$thisdir" && pwd`
test -n "$absdir" && thisdir="$absdir"
program='7segment'
progdir="$thisdir/.libs"
if test -f "$progdir/$program"; then
# Add our own library path to LD_LIBRARY_PATH
LD_LIBRARY_PATH="/usr/local/src/MyProgs/finalcut/src/.libs:$LD_LIBRARY_PATH"
# Some systems cannot cope with colon-terminated LD_LIBRARY_PATH
# The second colon is a workaround for a bug in BeOS R4 sed
LD_LIBRARY_PATH=`$ECHO "$LD_LIBRARY_PATH" | /bin/sed 's/::*$//'`
export LD_LIBRARY_PATH
if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
# Run the actual program with our arguments.
func_exec_program ${1+"$@"}
fi
else
# The program doesn't exist.
$ECHO "$0: error: '$progdir/$program' does not exist" 1>&2
$ECHO "This script is just a wrapper for $program." 1>&2
$ECHO "See the libtool documentation for more information." 1>&2
exit 1
fi
fi

207
examples/7segment.cpp Normal file
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@ -0,0 +1,207 @@
#include <final/final.h>
using finalcut::FColorPair;
using finalcut::FPoint;
using finalcut::FSize;
//----------------------------------------------------------------------
// class TextWindow
//----------------------------------------------------------------------
#pragma pack(push)
#pragma pack(1)
class SegmentView : public finalcut::FDialog
{
public:
explicit SegmentView (finalcut::FWidget* = nullptr);
private:
// Typedef
typedef struct
{
unsigned char a : 1;
unsigned char b : 1;
unsigned char c : 1;
unsigned char d : 1;
unsigned char e : 1;
unsigned char f : 1;
unsigned char g : 1;
unsigned char : 1; // padding bit
} sevenSegment;
// Methods
void hexEncoding();
void get7Segment (const wchar_t);
virtual void draw() override;
// Data Members
std::map<wchar_t, sevenSegment> code;
finalcut::FString line[3];
finalcut::FLineEdit Input{"0123", this};
finalcut::FButton Exit{"E&xit", this};
};
#pragma pack(pop)
//----------------------------------------------------------------------
SegmentView::SegmentView (finalcut::FWidget* parent)
: FDialog(parent)
{
// Set encoding
hexEncoding();
// Dialog settings
setText ("Seven-segment display");
setGeometry (FPoint(25, 5), FSize(42, 15));
// Input field
Input.setGeometry (FPoint(2, 2), FSize(12, 1));
Input.setLabelText (L"&Hex value");
Input.setLabelText (L"&Hex-digits or (.) (:) (H) (L) (P) (U)");
Input.setLabelOrientation(finalcut::FLineEdit::label_above);
Input.setMaxLength(9);
Input.setInputFilter("[:.hHlLpPuU[:xdigit:]]");
// Exit button
Exit.setGeometry(FPoint(28, 11), FSize(10, 1));
// Add some function callbacks
Input.addCallback
(
"changed",
[] (finalcut::FWidget*, FDataPtr data)
{
auto dialog = static_cast<SegmentView*>(data);
dialog->redraw();
},
this
);
Exit.addCallback
(
"clicked",
F_METHOD_CALLBACK (this, &finalcut::FApplication::cb_exitApp)
);
}
//----------------------------------------------------------------------
void SegmentView::hexEncoding()
{
code['0'] = sevenSegment{1, 1, 1, 1, 1, 1, 0};
code['1'] = sevenSegment{0, 1, 1, 0, 0, 0, 0};
code['2'] = sevenSegment{1, 1, 0, 1, 1, 0, 1};
code['3'] = sevenSegment{1, 1, 1, 1, 0, 0, 1};
code['4'] = sevenSegment{0, 1, 1, 0, 0, 1, 1};
code['5'] = sevenSegment{1, 0, 1, 1, 0, 1, 1};
code['6'] = sevenSegment{1, 0, 1, 1, 1, 1, 1};
code['7'] = sevenSegment{1, 1, 1, 0, 0, 0, 0};
code['8'] = sevenSegment{1, 1, 1, 1, 1, 1, 1};
code['9'] = sevenSegment{1, 1, 1, 1, 0, 1, 1};
code['A'] = sevenSegment{1, 1, 1, 0, 1, 1, 1};
code['B'] = sevenSegment{0, 0, 1, 1, 1, 1, 1};
code['C'] = sevenSegment{1, 0, 0, 1, 1, 1, 0};
code['D'] = sevenSegment{0, 1, 1, 1, 1, 0, 1};
code['E'] = sevenSegment{1, 0, 0, 1, 1, 1, 1};
code['F'] = sevenSegment{1, 0, 0, 0, 1, 1, 1};
}
//----------------------------------------------------------------------
void SegmentView::get7Segment (const wchar_t c)
{
sevenSegment& s = code[c];
constexpr char h[2]{' ', '_'};
constexpr char v[2]{' ', '|'};
for (int i = 0; i < 3; i++)
line[i].clear();
switch ( c )
{
case ':':
line[0] = ' ';
line[1] = '.';
line[2] = '.';
break;
case '.':
line[0] = ' ';
line[1] = ' ';
line[2] = '.';
break;
case 'H':
line[0] = " ";
line[1] = "|_|";
line[2] = "| |";
break;
case 'L':
line[0] = " ";
line[1] = "| ";
line[2] = "|_ ";
break;
case 'P':
line[0] = " _ ";
line[1] = "|_|";
line[2] = "| ";
break;
case 'U':
line[0] = " ";
line[1] = "| |";
line[2] = "|_|";
break;
default:
// Hexadecimal digit from 0 up to f
line[0] << ' ' << h[s.a] << ' ';
line[1] << v[s.f] << h[s.g] << v[s.b];
line[2] << v[s.e] << h[s.d] << v[s.c];
}
}
//----------------------------------------------------------------------
void SegmentView::draw()
{
std::vector<finalcut::FTermBuffer> tbuffer{3};
finalcut::FTermBuffer left_space{};
FDialog::draw();
setColor(finalcut::fc::LightGray, finalcut::fc::Black);
FWidget::drawBorder(3, 6, 40, 11);
for (auto&& ch : Input.getText().toUpper())
{
FColorPair color(finalcut::fc::LightRed, finalcut::fc::Black);
get7Segment(ch);
for (std::size_t i = 0; i < 3; i++)
tbuffer[i] << color << line[i] << " ";
}
std::size_t length = tbuffer[0].getLength();
if ( length < 36 )
left_space << finalcut::FString(36 - length, ' ');
print() << FPoint (4, 7) << left_space << tbuffer[0]
<< FPoint (4, 8) << left_space << tbuffer[1]
<< FPoint (4, 9) << left_space << tbuffer[2]
<< FPoint (4, 10) << finalcut::FString(36, ' ');
}
//----------------------------------------------------------------------
// main part
//----------------------------------------------------------------------
int main (int argc, char* argv[])
{
finalcut::FApplication app(argc, argv);
SegmentView dialog(&app);
app.setMainWidget(&dialog);
dialog.show();
return app.exec();
}

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@ -11,6 +11,7 @@ noinst_PROGRAMS = \
hello \ hello \
dialog \ dialog \
input-dialog \ input-dialog \
7segment \
choice \ choice \
listbox \ listbox \
listview \ listview \
@ -35,6 +36,7 @@ noinst_PROGRAMS = \
hello_SOURCES = hello.cpp hello_SOURCES = hello.cpp
dialog_SOURCES = dialog.cpp dialog_SOURCES = dialog.cpp
input_dialog_SOURCES = input-dialog.cpp input_dialog_SOURCES = input-dialog.cpp
7segment_SOURCES = 7segment.cpp
choice_SOURCES = choice.cpp choice_SOURCES = choice.cpp
listbox_SOURCES = listbox.cpp listbox_SOURCES = listbox.cpp
listview_SOURCES = listview.cpp listview_SOURCES = listview.cpp

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@ -1091,7 +1091,7 @@ bool FString::operator == (const FString& s) const
if ( ! (string || s.string) ) if ( ! (string || s.string) )
return true; return true;
if ( bool(string) != bool(s.string) ) if ( bool(string) != bool(s.string) || length != s.length )
return false; return false;
return ( std::wcscmp(string, s.string) == 0 ); return ( std::wcscmp(string, s.string) == 0 );
@ -1103,7 +1103,7 @@ bool FString::operator != (const FString& s) const
if ( ! (string || s.string) ) if ( ! (string || s.string) )
return false; return false;
if ( bool(string) != bool(s.string) ) if ( bool(string) != bool(s.string) || length != s.length )
return true; return true;
return ( std::wcscmp(string, s.string) != 0 ); return ( std::wcscmp(string, s.string) != 0 );