+++ /dev/null
-/*
- * This file is part of lanterna (http://code.google.com/p/lanterna/).
- *
- * lanterna is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * Copyright (C) 2010-2015 Martin
- */
-package com.googlecode.lanterna.terminal;
-
-import com.googlecode.lanterna.SGR;
-import com.googlecode.lanterna.TerminalSize;
-import com.googlecode.lanterna.TextColor;
-import com.googlecode.lanterna.graphics.TextGraphics;
-import com.googlecode.lanterna.input.KeyStroke;
-import java.io.IOException;
-import java.util.concurrent.TimeUnit;
-
-/**
- * This class exposes methods for converting a terminal into an IOSafeTerminal. There are two options available, either
- * one that will convert any IOException to a RuntimeException (and re-throw it) or one that will silently swallow any
- * IOException (and return null in those cases the method has a non-void return type).
- * @author Martin
- */
-public class IOSafeTerminalAdapter implements IOSafeTerminal {
- private interface ExceptionHandler {
- void onException(IOException e);
- }
-
- private static class ConvertToRuntimeException implements ExceptionHandler {
- @Override
- public void onException(IOException e) {
- throw new RuntimeException(e);
- }
- }
-
- private static class DoNothingAndOrReturnNull implements ExceptionHandler {
- @Override
- public void onException(IOException e) { }
- }
-
- /**
- * Creates a wrapper around a Terminal that exposes it as a IOSafeTerminal. If any IOExceptions occur, they will be
- * wrapped by a RuntimeException and re-thrown.
- * @param terminal Terminal to wrap
- * @return IOSafeTerminal wrapping the supplied terminal
- */
- public static IOSafeTerminal createRuntimeExceptionConvertingAdapter(Terminal terminal) {
- if (terminal instanceof ExtendedTerminal) { // also handle Runtime-type:
- return createRuntimeExceptionConvertingAdapter((ExtendedTerminal)terminal);
- } else {
- return new IOSafeTerminalAdapter(terminal, new ConvertToRuntimeException());
- }
- }
-
- /**
- * Creates a wrapper around an ExtendedTerminal that exposes it as a IOSafeExtendedTerminal.
- * If any IOExceptions occur, they will be wrapped by a RuntimeException and re-thrown.
- * @param terminal Terminal to wrap
- * @return IOSafeTerminal wrapping the supplied terminal
- */
- public static IOSafeExtendedTerminal createRuntimeExceptionConvertingAdapter(ExtendedTerminal terminal) {
- return new IOSafeTerminalAdapter.Extended(terminal, new ConvertToRuntimeException());
- }
-
- /**
- * Creates a wrapper around a Terminal that exposes it as a IOSafeTerminal. If any IOExceptions occur, they will be
- * silently ignored and for those method with a non-void return type, null will be returned.
- * @param terminal Terminal to wrap
- * @return IOSafeTerminal wrapping the supplied terminal
- */
- public static IOSafeTerminal createDoNothingOnExceptionAdapter(Terminal terminal) {
- if (terminal instanceof ExtendedTerminal) { // also handle Runtime-type:
- return createDoNothingOnExceptionAdapter((ExtendedTerminal)terminal);
- } else {
- return new IOSafeTerminalAdapter(terminal, new DoNothingAndOrReturnNull());
- }
- }
-
- /**
- * Creates a wrapper around an ExtendedTerminal that exposes it as a IOSafeExtendedTerminal.
- * If any IOExceptions occur, they will be silently ignored and for those method with a
- * non-void return type, null will be returned.
- * @param terminal Terminal to wrap
- * @return IOSafeTerminal wrapping the supplied terminal
- */
- public static IOSafeExtendedTerminal createDoNothingOnExceptionAdapter(ExtendedTerminal terminal) {
- return new IOSafeTerminalAdapter.Extended(terminal, new DoNothingAndOrReturnNull());
- }
-
- private final Terminal backend;
- final ExceptionHandler exceptionHandler;
-
- @SuppressWarnings("WeakerAccess")
- public IOSafeTerminalAdapter(Terminal backend, ExceptionHandler exceptionHandler) {
- this.backend = backend;
- this.exceptionHandler = exceptionHandler;
- }
-
- @Override
- public void enterPrivateMode() {
- try {
- backend.enterPrivateMode();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void exitPrivateMode() {
- try {
- backend.exitPrivateMode();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void clearScreen() {
- try {
- backend.clearScreen();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void setCursorPosition(int x, int y) {
- try {
- backend.setCursorPosition(x, y);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void setCursorVisible(boolean visible) {
- try {
- backend.setCursorVisible(visible);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void putCharacter(char c) {
- try {
- backend.putCharacter(c);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public TextGraphics newTextGraphics() throws IOException {
- return backend.newTextGraphics();
- }
-
- @Override
- public void enableSGR(SGR sgr) {
- try {
- backend.enableSGR(sgr);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void disableSGR(SGR sgr) {
- try {
- backend.disableSGR(sgr);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void resetColorAndSGR() {
- try {
- backend.resetColorAndSGR();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void setForegroundColor(TextColor color) {
- try {
- backend.setForegroundColor(color);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void setBackgroundColor(TextColor color) {
- try {
- backend.setBackgroundColor(color);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void addResizeListener(ResizeListener listener) {
- backend.addResizeListener(listener);
- }
-
- @Override
- public void removeResizeListener(ResizeListener listener) {
- backend.removeResizeListener(listener);
- }
-
- @Override
- public TerminalSize getTerminalSize() {
- try {
- return backend.getTerminalSize();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- return null;
- }
-
- @Override
- public byte[] enquireTerminal(int timeout, TimeUnit timeoutUnit) {
- try {
- return backend.enquireTerminal(timeout, timeoutUnit);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- return null;
- }
-
- @Override
- public void flush() {
- try {
- backend.flush();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public KeyStroke pollInput() {
- try {
- return backend.pollInput();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- return null;
- }
-
- @Override
- public KeyStroke readInput() {
- try {
- return backend.readInput();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- return null;
- }
-
- /**
- * This class exposes methods for converting an extended terminal into an IOSafeExtendedTerminal.
- */
- public static class Extended extends IOSafeTerminalAdapter implements IOSafeExtendedTerminal {
- private final ExtendedTerminal backend;
-
- public Extended(ExtendedTerminal backend, ExceptionHandler exceptionHandler) {
- super(backend, exceptionHandler);
- this.backend = backend;
- }
-
- @Override
- public void setTerminalSize(int columns, int rows) {
- try {
- backend.setTerminalSize(columns, rows);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void setTitle(String title) {
- try {
- backend.setTitle(title);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void pushTitle() {
- try {
- backend.pushTitle();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void popTitle() {
- try {
- backend.popTitle();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void iconify() {
- try {
- backend.iconify();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void deiconify() {
- try {
- backend.deiconify();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void maximize() {
- try {
- backend.maximize();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void unmaximize() {
- try {
- backend.unmaximize();
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void setMouseCaptureMode(MouseCaptureMode mouseCaptureMode) {
- try {
- backend.setMouseCaptureMode(mouseCaptureMode);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- @Override
- public void scrollLines(int firstLine, int lastLine, int distance) {
- try {
- backend.scrollLines(firstLine, lastLine, distance);
- }
- catch(IOException e) {
- exceptionHandler.onException(e);
- }
- }
-
- }
-}
git://git.nikiroo.be / jvcard.git / blobdiff