src/com/googlecode/lanterna/graphics/NullTextGraphics.java

   1 /*
   2  * This file is part of lanterna (http://code.google.com/p/lanterna/).
   3  *
   4  * lanterna is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU Lesser General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Copyright (C) 2010-2015 Martin
  18  */
  19 package com.googlecode.lanterna.graphics;
  20
  21 import com.googlecode.lanterna.*;
  22 import com.googlecode.lanterna.screen.TabBehaviour;
  23 import java.util.Arrays;
  24 import java.util.Collection;
  25 import java.util.EnumSet;
  26
  27 /**
  28  * TextGraphics implementation that does nothing, but has a pre-defined size
  29  * @author martin
  30  */
  31 class NullTextGraphics implements TextGraphics {
  32     private final TerminalSize size;
  33     private TextColor foregroundColor;
  34     private TextColor backgroundColor;
  35     private TabBehaviour tabBehaviour;
  36     private final EnumSet<SGR> activeModifiers;
  37
  38     /**
  39      * Creates a new {@code NullTextGraphics} that will return the specified size value if asked how big it is but other
  40      * than that ignore all other calls.
  41      * @param size The size to report
  42      */
  43     public NullTextGraphics(TerminalSize size) {
  44         this.size = size;
  45         this.foregroundColor = TextColor.ANSI.DEFAULT;
  46         this.backgroundColor = TextColor.ANSI.DEFAULT;
  47         this.tabBehaviour = TabBehaviour.ALIGN_TO_COLUMN_4;
  48         this.activeModifiers = EnumSet.noneOf(SGR.class);
  49     }
  50
  51     @Override
  52     public TerminalSize getSize() {
  53         return size;
  54     }
  55
  56     @Override
  57     public TextGraphics newTextGraphics(TerminalPosition topLeftCorner, TerminalSize size) throws IllegalArgumentException {
  58         return this;
  59     }
  60
  61     @Override
  62     public TextColor getBackgroundColor() {
  63         return backgroundColor;
  64     }
  65
  66     @Override
  67     public TextGraphics setBackgroundColor(TextColor backgroundColor) {
  68         this.backgroundColor = backgroundColor;
  69         return this;
  70     }
  71
  72     @Override
  73     public TextColor getForegroundColor() {
  74         return foregroundColor;
  75     }
  76
  77     @Override
  78     public TextGraphics setForegroundColor(TextColor foregroundColor) {
  79         this.foregroundColor = foregroundColor;
  80         return this;
  81     }
  82
  83     @Override
  84     public TextGraphics enableModifiers(SGR... modifiers) {
  85         activeModifiers.addAll(Arrays.asList(modifiers));
  86         return this;
  87     }
  88
  89     @Override
  90     public TextGraphics disableModifiers(SGR... modifiers) {
  91         activeModifiers.removeAll(Arrays.asList(modifiers));
  92         return this;
  93     }
  94
  95     @Override
  96     public TextGraphics setModifiers(EnumSet<SGR> modifiers) {
  97         clearModifiers();
  98         activeModifiers.addAll(modifiers);
  99         return this;
 100     }
 101
 102     @Override
 103     public TextGraphics clearModifiers() {
 104         activeModifiers.clear();
 105         return this;
 106     }
 107
 108     @Override
 109     public EnumSet<SGR> getActiveModifiers() {
 110         return EnumSet.copyOf(activeModifiers);
 111     }
 112
 113     @Override
 114     public TabBehaviour getTabBehaviour() {
 115         return tabBehaviour;
 116     }
 117
 118     @Override
 119     public TextGraphics setTabBehaviour(TabBehaviour tabBehaviour) {
 120         this.tabBehaviour = tabBehaviour;
 121         return this;
 122     }
 123
 124     @Override
 125     public TextGraphics fill(char c) {
 126         return this;
 127     }
 128
 129     @Override
 130     public TextGraphics setCharacter(int column, int row, char character) {
 131         return this;
 132     }
 133
 134     @Override
 135     public TextGraphics setCharacter(int column, int row, TextCharacter character) {
 136         return this;
 137     }
 138
 139     @Override
 140     public TextGraphics setCharacter(TerminalPosition position, char character) {
 141         return this;
 142     }
 143
 144     @Override
 145     public TextGraphics setCharacter(TerminalPosition position, TextCharacter character) {
 146         return this;
 147     }
 148
 149     @Override
 150     public TextGraphics drawLine(TerminalPosition fromPoint, TerminalPosition toPoint, char character) {
 151         return this;
 152     }
 153
 154     @Override
 155     public TextGraphics drawLine(TerminalPosition fromPoint, TerminalPosition toPoint, TextCharacter character) {
 156         return this;
 157     }
 158
 159     @Override
 160     public TextGraphics drawLine(int fromX, int fromY, int toX, int toY, char character) {
 161         return this;
 162     }
 163
 164     @Override
 165     public TextGraphics drawLine(int fromX, int fromY, int toX, int toY, TextCharacter character) {
 166         return this;
 167     }
 168
 169     @Override
 170     public TextGraphics drawTriangle(TerminalPosition p1, TerminalPosition p2, TerminalPosition p3, char character) {
 171         return this;
 172     }
 173
 174     @Override
 175     public TextGraphics drawTriangle(TerminalPosition p1, TerminalPosition p2, TerminalPosition p3, TextCharacter character) {
 176         return this;
 177     }
 178
 179     @Override
 180     public TextGraphics fillTriangle(TerminalPosition p1, TerminalPosition p2, TerminalPosition p3, char character) {
 181         return this;
 182     }
 183
 184     @Override
 185     public TextGraphics fillTriangle(TerminalPosition p1, TerminalPosition p2, TerminalPosition p3, TextCharacter character) {
 186         return this;
 187     }
 188
 189     @Override
 190     public TextGraphics drawRectangle(TerminalPosition topLeft, TerminalSize size, char character) {
 191         return this;
 192     }
 193
 194     @Override
 195     public TextGraphics drawRectangle(TerminalPosition topLeft, TerminalSize size, TextCharacter character) {
 196         return this;
 197     }
 198
 199     @Override
 200     public TextGraphics fillRectangle(TerminalPosition topLeft, TerminalSize size, char character) {
 201         return this;
 202     }
 203
 204     @Override
 205     public TextGraphics fillRectangle(TerminalPosition topLeft, TerminalSize size, TextCharacter character) {
 206         return this;
 207     }
 208
 209     @Override
 210     public TextGraphics drawImage(TerminalPosition topLeft, TextImage image) {
 211         return this;
 212     }
 213
 214     @Override
 215     public TextGraphics drawImage(TerminalPosition topLeft, TextImage image, TerminalPosition sourceImageTopLeft, TerminalSize sourceImageSize) {
 216         return this;
 217     }
 218
 219     @Override
 220     public TextGraphics putString(int column, int row, String string) {
 221         return this;
 222     }
 223
 224     @Override
 225     public TextGraphics putString(TerminalPosition position, String string) {
 226         return this;
 227     }
 228
 229     @Override
 230     public TextGraphics putString(int column, int row, String string, SGR extraModifier, SGR... optionalExtraModifiers) {
 231         return this;
 232     }
 233
 234     @Override
 235     public TextGraphics putString(TerminalPosition position, String string, SGR extraModifier, SGR... optionalExtraModifiers) {
 236         return this;
 237     }
 238
 239     @Override
 240     public TextGraphics putString(int column, int row, String string, Collection<SGR> extraModifiers) {
 241         return this;
 242     }
 243
 244     @Override
 245     public TextCharacter getCharacter(int column, int row) {
 246         return null;
 247     }
 248
 249     @Override
 250     public TextCharacter getCharacter(TerminalPosition position) {
 251         return null;
 252     }
 253 }