| 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 | } |