/*
 * 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) 2010-2020 Martin Berglund
 */
package com.googlecode.lanterna.graphics;

import com.googlecode.lanterna.TextCharacter;
import com.googlecode.lanterna.TerminalSize;

This TextGraphics implementation wraps another TextGraphics and forwards all operations to it, but with a few differences. First of all, each individual character being printed is printed twice. Secondly, if you call getSize(), it will return a size that has half the width of the underlying TextGraphics. This presents the writable view as somewhat squared, since normally terminal characters are twice as tall as wide. You can see some examples of how this looks by running the Triangle test in com.googlecode.lanterna.screen.ScreenTriangleTest and compare it when running with the --square parameter and without. /**
 * This TextGraphics implementation wraps another TextGraphics and forwards all operations to it, but with a few
 * differences. First of all, each individual character being printed is printed twice. Secondly, if you call
 * {@code getSize()}, it will return a size that has half the width of the underlying TextGraphics. This presents the
 * writable view as somewhat squared, since normally terminal characters are twice as tall as wide. You can see some
 * examples of how this looks by running the Triangle test in {@code com.googlecode.lanterna.screen.ScreenTriangleTest}
 * and compare it when running with the --square parameter and without.
 */
public class DoublePrintingTextGraphics extends AbstractTextGraphics {
    private final TextGraphics underlyingTextGraphics;

    
Creates a new DoublePrintingTextGraphics on top of a supplied TextGraphics 
Params:
underlyingTextGraphics – backend TextGraphics to forward all the calls to/**
     * Creates a new {@code DoublePrintingTextGraphics} on top of a supplied {@code TextGraphics}
     * @param underlyingTextGraphics backend {@code TextGraphics} to forward all the calls to
     */
    public DoublePrintingTextGraphics(TextGraphics underlyingTextGraphics) {
        this.underlyingTextGraphics = underlyingTextGraphics;
    }

    @Override
    public TextGraphics setCharacter(int columnIndex, int rowIndex, TextCharacter textCharacter) {
        columnIndex = columnIndex * 2;
        underlyingTextGraphics.setCharacter(columnIndex, rowIndex, textCharacter);
        underlyingTextGraphics.setCharacter(columnIndex + 1, rowIndex, textCharacter);
        return this;
    }

    @Override
    public TextCharacter getCharacter(int columnIndex, int rowIndex) {
        columnIndex = columnIndex * 2;
        return underlyingTextGraphics.getCharacter(columnIndex, rowIndex);

    }

    @Override
    public TerminalSize getSize() {
        TerminalSize size = underlyingTextGraphics.getSize();
        return size.withColumns(size.getColumns() / 2);
    }
}