390 lines
11 KiB
Java
390 lines
11 KiB
Java
/*
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* This file is part of ComputerCraft - http://www.computercraft.info
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* Copyright Daniel Ratcliffe, 2011-2019. Do not distribute without permission.
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* Send enquiries to dratcliffe@gmail.com
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*/
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package dan200.computercraft.core.terminal;
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import dan200.computercraft.shared.util.Palette;
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import net.minecraft.nbt.NBTTagCompound;
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public class Terminal
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{
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private static final String base16 = "0123456789abcdef";
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private int m_cursorX;
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private int m_cursorY;
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private boolean m_cursorBlink;
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private int m_cursorColour;
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private int m_cursorBackgroundColour;
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private int m_width;
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private int m_height;
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private TextBuffer[] m_text;
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private TextBuffer[] m_textColour;
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private TextBuffer[] m_backgroundColour;
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private final Palette m_palette;
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private boolean m_changed;
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private final Runnable onChanged;
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public Terminal( int width, int height )
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{
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this( width, height, null );
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}
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public Terminal( int width, int height, Runnable changedCallback )
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{
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m_width = width;
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m_height = height;
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onChanged = changedCallback;
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m_cursorColour = 0;
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m_cursorBackgroundColour = 15;
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m_text = new TextBuffer[m_height];
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m_textColour = new TextBuffer[m_height];
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m_backgroundColour = new TextBuffer[m_height];
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for( int i = 0; i < m_height; i++ )
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{
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m_text[i] = new TextBuffer( ' ', m_width );
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m_textColour[i] = new TextBuffer( base16.charAt( m_cursorColour ), m_width );
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m_backgroundColour[i] = new TextBuffer( base16.charAt( m_cursorBackgroundColour ), m_width );
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}
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m_cursorX = 0;
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m_cursorY = 0;
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m_cursorBlink = false;
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m_changed = false;
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m_palette = new Palette();
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}
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public synchronized void reset()
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{
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m_cursorColour = 0;
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m_cursorBackgroundColour = 15;
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m_cursorX = 0;
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m_cursorY = 0;
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m_cursorBlink = false;
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clear();
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setChanged();
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m_palette.resetColours();
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}
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public int getWidth()
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{
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return m_width;
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}
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public int getHeight()
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{
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return m_height;
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}
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public synchronized void resize( int width, int height )
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{
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if( width == m_width && height == m_height )
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{
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return;
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}
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int oldHeight = m_height;
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int oldWidth = m_width;
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TextBuffer[] oldText = m_text;
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TextBuffer[] oldTextColour = m_textColour;
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TextBuffer[] oldBackgroundColour = m_backgroundColour;
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m_width = width;
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m_height = height;
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m_text = new TextBuffer[m_height];
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m_textColour = new TextBuffer[m_height];
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m_backgroundColour = new TextBuffer[m_height];
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for( int i = 0; i < m_height; i++ )
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{
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if( i >= oldHeight )
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{
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m_text[i] = new TextBuffer( ' ', m_width );
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m_textColour[i] = new TextBuffer( base16.charAt( m_cursorColour ), m_width );
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m_backgroundColour[i] = new TextBuffer( base16.charAt( m_cursorBackgroundColour ), m_width );
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}
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else if( m_width == oldWidth )
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{
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m_text[i] = oldText[i];
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m_textColour[i] = oldTextColour[i];
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m_backgroundColour[i] = oldBackgroundColour[i];
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}
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else
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{
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m_text[i] = new TextBuffer( ' ', m_width );
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m_textColour[i] = new TextBuffer( base16.charAt( m_cursorColour ), m_width );
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m_backgroundColour[i] = new TextBuffer( base16.charAt( m_cursorBackgroundColour ), m_width );
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m_text[i].write( oldText[i] );
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m_textColour[i].write( oldTextColour[i] );
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m_backgroundColour[i].write( oldBackgroundColour[i] );
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}
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}
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setChanged();
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}
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public void setCursorPos( int x, int y )
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{
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if( m_cursorX != x || m_cursorY != y )
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{
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m_cursorX = x;
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m_cursorY = y;
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setChanged();
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}
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}
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public void setCursorBlink( boolean blink )
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{
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if( m_cursorBlink != blink )
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{
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m_cursorBlink = blink;
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setChanged();
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}
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}
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public void setTextColour( int colour )
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{
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if( m_cursorColour != colour )
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{
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m_cursorColour = colour;
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setChanged();
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}
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}
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public void setBackgroundColour( int colour )
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{
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if( m_cursorBackgroundColour != colour )
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{
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m_cursorBackgroundColour = colour;
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setChanged();
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}
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}
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public int getCursorX()
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{
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return m_cursorX;
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}
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public int getCursorY()
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{
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return m_cursorY;
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}
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public boolean getCursorBlink()
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{
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return m_cursorBlink;
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}
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public int getTextColour()
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{
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return m_cursorColour;
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}
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public int getBackgroundColour()
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{
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return m_cursorBackgroundColour;
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}
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public Palette getPalette()
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{
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return m_palette;
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}
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public synchronized void blit( String text, String textColour, String backgroundColour )
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{
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int x = m_cursorX;
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int y = m_cursorY;
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if( y >= 0 && y < m_height )
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{
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m_text[y].write( text, x );
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m_textColour[y].write( textColour, x );
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m_backgroundColour[y].write( backgroundColour, x );
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setChanged();
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}
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}
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public synchronized void write( String text )
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{
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int x = m_cursorX;
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int y = m_cursorY;
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if( y >= 0 && y < m_height )
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{
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m_text[y].write( text, x );
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m_textColour[y].fill( base16.charAt( m_cursorColour ), x, x + text.length() );
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m_backgroundColour[y].fill( base16.charAt( m_cursorBackgroundColour ), x, x + text.length() );
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setChanged();
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}
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}
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public synchronized void scroll( int yDiff )
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{
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if( yDiff != 0 )
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{
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TextBuffer[] newText = new TextBuffer[m_height];
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TextBuffer[] newTextColour = new TextBuffer[m_height];
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TextBuffer[] newBackgroundColour = new TextBuffer[m_height];
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for( int y = 0; y < m_height; y++ )
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{
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int oldY = y + yDiff;
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if( oldY >= 0 && oldY < m_height )
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{
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newText[y] = m_text[oldY];
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newTextColour[y] = m_textColour[oldY];
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newBackgroundColour[y] = m_backgroundColour[oldY];
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}
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else
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{
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newText[y] = new TextBuffer( ' ', m_width );
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newTextColour[y] = new TextBuffer( base16.charAt( m_cursorColour ), m_width );
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newBackgroundColour[y] = new TextBuffer( base16.charAt( m_cursorBackgroundColour ), m_width );
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}
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}
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m_text = newText;
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m_textColour = newTextColour;
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m_backgroundColour = newBackgroundColour;
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setChanged();
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}
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}
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public synchronized void clear()
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{
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for( int y = 0; y < m_height; y++ )
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{
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m_text[y].fill( ' ' );
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m_textColour[y].fill( base16.charAt( m_cursorColour ) );
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m_backgroundColour[y].fill( base16.charAt( m_cursorBackgroundColour ) );
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}
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setChanged();
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}
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public synchronized void clearLine()
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{
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int y = m_cursorY;
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if( y >= 0 && y < m_height )
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{
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m_text[y].fill( ' ' );
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m_textColour[y].fill( base16.charAt( m_cursorColour ) );
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m_backgroundColour[y].fill( base16.charAt( m_cursorBackgroundColour ) );
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setChanged();
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}
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}
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public synchronized TextBuffer getLine( int y )
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{
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if( y >= 0 && y < m_height )
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{
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return m_text[y];
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}
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return null;
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}
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public synchronized void setLine( int y, String text, String textColour, String backgroundColour )
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{
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m_text[y].write( text );
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m_textColour[y].write( textColour );
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m_backgroundColour[y].write( backgroundColour );
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setChanged();
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}
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public synchronized TextBuffer getTextColourLine( int y )
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{
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if( y >= 0 && y < m_height )
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{
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return m_textColour[y];
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}
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return null;
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}
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public synchronized TextBuffer getBackgroundColourLine( int y )
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{
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if( y >= 0 && y < m_height )
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{
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return m_backgroundColour[y];
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}
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return null;
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}
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/**
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* @deprecated All {@code *Changed()} methods are deprecated: one should pass in a callback
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* instead.
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*/
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@Deprecated
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public final boolean getChanged()
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{
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return m_changed;
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}
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public final void setChanged()
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{
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m_changed = true;
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if( onChanged != null ) onChanged.run();
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}
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public final void clearChanged()
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{
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m_changed = false;
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}
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public synchronized NBTTagCompound writeToNBT( NBTTagCompound nbt )
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{
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nbt.putInt( "term_cursorX", m_cursorX );
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nbt.putInt( "term_cursorY", m_cursorY );
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nbt.putBoolean( "term_cursorBlink", m_cursorBlink );
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nbt.putInt( "term_textColour", m_cursorColour );
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nbt.putInt( "term_bgColour", m_cursorBackgroundColour );
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for( int n = 0; n < m_height; n++ )
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{
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nbt.putString( "term_text_" + n, m_text[n].toString() );
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nbt.putString( "term_textColour_" + n, m_textColour[n].toString() );
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nbt.putString( "term_textBgColour_" + n, m_backgroundColour[n].toString() );
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}
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if( m_palette != null )
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{
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m_palette.writeToNBT( nbt );
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}
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return nbt;
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}
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public synchronized void readFromNBT( NBTTagCompound nbt )
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{
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m_cursorX = nbt.getInt( "term_cursorX" );
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m_cursorY = nbt.getInt( "term_cursorY" );
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m_cursorBlink = nbt.getBoolean( "term_cursorBlink" );
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m_cursorColour = nbt.getInt( "term_textColour" );
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m_cursorBackgroundColour = nbt.getInt( "term_bgColour" );
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for( int n = 0; n < m_height; n++ )
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{
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m_text[n].fill( ' ' );
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if( nbt.contains( "term_text_" + n ) )
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{
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m_text[n].write( nbt.getString( "term_text_" + n ) );
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}
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m_textColour[n].fill( base16.charAt( m_cursorColour ) );
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if( nbt.contains( "term_textColour_" + n ) )
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{
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m_textColour[n].write( nbt.getString( "term_textColour_" + n ) );
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}
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m_backgroundColour[n].fill( base16.charAt( m_cursorBackgroundColour ) );
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if( nbt.contains( "term_textBgColour_" + n ) )
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{
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m_backgroundColour[n].write( nbt.getString( "term_textBgColour_" + n ) );
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}
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}
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if( m_palette != null )
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{
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m_palette.readFromNBT( nbt );
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}
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setChanged();
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}
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}
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