Adding a tty check for stdin
This commit is contained in:
Markus Gans
parent
07a29910b7
commit
dd625e0822
|
|
@ -1,4 +1,5 @@
|
|||
2020-02-08 Markus Gans <guru.mail@muenster.de>
|
||||
2020-02-09 Markus Gans <guru.mail@muenster.de>
|
||||
* Adding a tty check for stdin
|
||||
* An application structure diagram was added to the document
|
||||
of the first steps
|
||||
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@
|
|||
width="101.5mm"
|
||||
version="1.1"
|
||||
id="svg61"
|
||||
sodipodi:docname="application-structure.svg"
|
||||
sodipodi:docname="final-cut-application-structure.svg"
|
||||
inkscape:version="0.92.1 r15371">
|
||||
<sodipodi:namedview
|
||||
pagecolor="#ffffff"
|
||||
|
|
@ -27,13 +27,13 @@
|
|||
inkscape:window-height="1984"
|
||||
id="namedview35"
|
||||
showgrid="false"
|
||||
inkscape:zoom="4.0861905"
|
||||
inkscape:cx="81.193565"
|
||||
inkscape:cy="171.2161"
|
||||
inkscape:zoom="2.8893731"
|
||||
inkscape:cx="331.13905"
|
||||
inkscape:cy="54.29145"
|
||||
inkscape:window-x="0"
|
||||
inkscape:window-y="55"
|
||||
inkscape:window-maximized="1"
|
||||
inkscape:current-layer="g59" />
|
||||
inkscape:current-layer="g23" />
|
||||
<metadata
|
||||
id="metadata67">
|
||||
<rdf:RDF>
|
||||
|
|
@ -42,7 +42,7 @@
|
|||
<dc:format>image/svg+xml</dc:format>
|
||||
<dc:type
|
||||
rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
|
||||
<dc:title></dc:title>
|
||||
<dc:title />
|
||||
</cc:Work>
|
||||
</rdf:RDF>
|
||||
</metadata>
|
||||
|
|
@ -70,7 +70,7 @@
|
|||
id="g59">
|
||||
<g
|
||||
id="g23"
|
||||
style="stroke:#000000"
|
||||
style="stroke:#000000;fill:none"
|
||||
transform="translate(-0.00447221)">
|
||||
<rect
|
||||
height="74.20752"
|
||||
|
|
@ -80,7 +80,7 @@
|
|||
x="0.2115"
|
||||
y="222.58098"
|
||||
id="rect7"
|
||||
style="fill:#f0f0f0;fill-opacity:1;stroke-width:0.42300001;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:1.5" />
|
||||
style="fill:#f6f8fa;fill-opacity:1;stroke-width:0.42300001;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:1.5" />
|
||||
<path
|
||||
d="M 7.8726193,233.11525 H 66.187848"
|
||||
id="path9"
|
||||
|
|
|
|||
|
Before Width: | Height: | Size: 10 KiB After Width: | Height: | Size: 10 KiB |
|
|
@ -29,9 +29,22 @@ Table of Contents
|
|||
Basic functions
|
||||
---------------
|
||||
|
||||
FINAL CUT is a library for creating text-based terminal applications. It runs on several Unix-like platforms. The release of FINAL CUT is licensed under the terms of the GNU Lesser General Public License v3.0 ([GNU LGPL v3](https://www.gnu.org/licenses/lgpl-3.0-standalone.html)), which allows flexible licensing of applications. FINAL CUT has a [C++](https://en.wikipedia.org/wiki/C%2B%2B)-based object-oriented architecture for creating fast and lean programs.
|
||||
FINAL CUT is a library for creating text-based terminal applications.
|
||||
It runs on several Unix-like platforms. The release of FINAL CUT is
|
||||
licensed under the terms of the GNU Lesser General Public License v3.0
|
||||
([GNU LGPL v3](https://www.gnu.org/licenses/lgpl-3.0-standalone.html)),
|
||||
which allows flexible licensing of applications. FINAL CUT was written
|
||||
in the programming language [C++](https://en.wikipedia.org/wiki/C%2B%2B).
|
||||
The object-oriented design allows the creation of fast and lean programs.
|
||||
|
||||
FINAL CUT is a [widget toolkit](http://en.wikipedia.org/wiki/Widget_toolkit). A user interface created consists of several widgets. FINAL CUT draws widgets on virtual windows and then mapped them on a virtual terminal. It uses the terminal capabilities from the [Termcap library](https://en.wikipedia.org/wiki/Termcap) to display the character matrix of the virtual terminal on the screen or a terminal emulator. It uses various optimization methods to improve the speed of the display.
|
||||
FINAL CUT is a [widget toolkit](http://en.wikipedia.org/wiki/Widget_toolkit).
|
||||
A user interface usually consists of several
|
||||
[widgets](https://en.wikipedia.org/wiki/Software_widget). FINAL CUT
|
||||
draws widgets on virtual windows and then mapped them on a virtual
|
||||
terminal. It uses the terminal capabilities from the
|
||||
[Termcap library](https://en.wikipedia.org/wiki/Termcap) to display
|
||||
the character matrix of the virtual terminal on the screen or a terminal
|
||||
emulator. It uses various optimization methods to improve the drawing speed.
|
||||
|
||||
<figure class="image">
|
||||
<img src="final-cut-application-structure.svg" alt="application structure">
|
||||
|
|
|
|||
|
|
@ -25,6 +25,7 @@
|
|||
#include <string>
|
||||
#include <vector>
|
||||
|
||||
#include "final/fapplication.h"
|
||||
#include "final/fc.h"
|
||||
#include "final/fcharmap.h"
|
||||
#include "final/fcolorpalette.h"
|
||||
|
|
@ -2211,24 +2212,9 @@ void FTerm::init (bool disable_alt_screen)
|
|||
allocationValues();
|
||||
init_global_values(disable_alt_screen);
|
||||
|
||||
// Initialize termios
|
||||
FTermios::init();
|
||||
|
||||
// Get pathname of the terminal device
|
||||
init_terminal_device_path();
|
||||
|
||||
// Initialize Linux or *BSD console
|
||||
initOSspecifics();
|
||||
|
||||
// Save termios settings
|
||||
FTermios::storeTTYsettings();
|
||||
|
||||
// Get output baud rate
|
||||
initBaudRate();
|
||||
|
||||
// Terminal detection
|
||||
term_detection->detect();
|
||||
setTermType (term_detection->getTermType());
|
||||
// Initialize the terminal
|
||||
if ( ! init_terminal() )
|
||||
return;
|
||||
|
||||
// Set maximum number of colors for detected terminals
|
||||
init_fixed_max_color();
|
||||
|
|
@ -2312,6 +2298,49 @@ void FTerm::init (bool disable_alt_screen)
|
|||
term_initialized = true;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
bool FTerm::init_terminal()
|
||||
{
|
||||
// Initialize termios
|
||||
FTermios::init();
|
||||
|
||||
// Check if stdin is a tty
|
||||
if ( ! fsys->isTTY(FTermios::getStdIn()) )
|
||||
{
|
||||
data->setExitMessage("FTerm: Standard input is not a TTY.");
|
||||
FApplication::exit(EXIT_FAILURE);
|
||||
return false;
|
||||
}
|
||||
|
||||
// Get pathname of the terminal device
|
||||
init_terminal_device_path();
|
||||
|
||||
// Initialize Linux or *BSD console
|
||||
initOSspecifics();
|
||||
|
||||
// Save termios settings
|
||||
try
|
||||
{
|
||||
FTermios::storeTTYsettings();
|
||||
}
|
||||
catch (const std::runtime_error& ex)
|
||||
{
|
||||
FString msg = "FTerm: " + FString(ex.what());
|
||||
data->setExitMessage(msg);
|
||||
FApplication::exit(EXIT_FAILURE);
|
||||
return false;
|
||||
}
|
||||
|
||||
// Get output baud rate
|
||||
initBaudRate();
|
||||
|
||||
// Terminal detection
|
||||
term_detection->detect();
|
||||
setTermType (term_detection->getTermType());
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
void FTerm::initOSspecifics()
|
||||
{
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
* *
|
||||
* This file is part of the Final Cut widget toolkit *
|
||||
* *
|
||||
* Copyright 2018-2019 Markus Gans *
|
||||
* Copyright 2018-2020 Markus Gans *
|
||||
* *
|
||||
* The Final Cut is free software; you can redistribute it and/or *
|
||||
* modify it under the terms of the GNU Lesser General Public License *
|
||||
|
|
@ -72,7 +72,10 @@ void FTermios::init()
|
|||
termios FTermios::getTTY()
|
||||
{
|
||||
struct termios t{};
|
||||
tcgetattr (stdin_no, &t);
|
||||
|
||||
if ( tcgetattr(stdin_no, &t) == -1 )
|
||||
std::runtime_error("Cannot find tty");
|
||||
|
||||
return t;
|
||||
}
|
||||
|
||||
|
|
@ -86,8 +89,15 @@ void FTermios::setTTY (const termios& t)
|
|||
void FTermios::storeTTYsettings()
|
||||
{
|
||||
// Store termios settings
|
||||
try
|
||||
{
|
||||
term_init = getTTY();
|
||||
}
|
||||
catch (...)
|
||||
{
|
||||
throw std::current_exception();
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
void FTermios::restoreTTYsettings()
|
||||
|
|
|
|||
|
|
@ -343,6 +343,7 @@ class FTerm final
|
|||
void allocationValues();
|
||||
void deallocationValues();
|
||||
void init (bool);
|
||||
bool init_terminal();
|
||||
void initOSspecifics();
|
||||
void initTermspecifics();
|
||||
void initBaudRate();
|
||||
|
|
|
|||
Loading…
Reference in New Issue