[5971] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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[5970] | 23 | * Reto Grieder |
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[5971] | 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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| 29 | #include "IOConsole.h" |
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| 30 | |
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| 31 | #include <iomanip> |
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| 32 | #include <iostream> |
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[6417] | 33 | |
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| 34 | #include "util/Clock.h" |
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| 35 | #include "util/Math.h" |
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[7287] | 36 | #include "core/Game.h" |
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| 37 | #include "core/input/InputBuffer.h" |
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[5971] | 38 | |
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[6015] | 39 | namespace orxonox |
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| 40 | { |
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| 41 | IOConsole* IOConsole::singletonPtr_s = NULL; |
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| 42 | |
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[6417] | 43 | //! Redirects std::cout, creates the corresponding Shell and changes the terminal mode |
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[6015] | 44 | IOConsole::IOConsole() |
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[6417] | 45 | : shell_(new Shell("IOConsole", false)) |
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[6015] | 46 | , buffer_(shell_->getInputBuffer()) |
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[6041] | 47 | , cout_(std::cout.rdbuf()) |
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[6015] | 48 | , promptString_("orxonox # ") |
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[6417] | 49 | , inputLineHeight_(1) |
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| 50 | , statusLines_(1) |
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| 51 | , lastOutputLineHeight_(0) |
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[5971] | 52 | { |
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[6417] | 53 | // Disable standard this->cout_ logging |
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| 54 | OutputHandler::getInstance().disableCout(); |
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| 55 | // Redirect std::cout to an ostringstream |
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| 56 | // (Other part is in the initialiser list) |
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| 57 | std::cout.rdbuf(this->origCout_.rdbuf()); |
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| 58 | |
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| 59 | this->setTerminalMode(); |
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| 60 | CONSOLE_SCREEN_BUFFER_INFO screenBufferInfo; |
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| 61 | GetConsoleScreenBufferInfo(this->stdOutHandle_, &screenBufferInfo); |
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| 62 | this->terminalWidth_ = screenBufferInfo.dwSize.X; |
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| 63 | this->terminalHeight_ = screenBufferInfo.dwSize.Y; |
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| 64 | // Determines where we are in respect to output already written with std::cout |
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| 65 | this->inputLineRow_ = screenBufferInfo.dwCursorPosition.Y; |
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[6015] | 66 | /* |
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[6417] | 67 | this->lastTerminalWidth_ = this->terminalWidth_; |
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| 68 | this->lastTerminalHeight_ = this->terminalHeight_; |
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| 69 | */ |
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[6015] | 70 | |
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[6417] | 71 | // Cursor already at the end of the screen buffer? |
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| 72 | // (assuming the current input line height is 1) |
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| 73 | if (this->inputLineRow_ >= this->terminalHeight_ - this->statusLines_) |
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| 74 | SetConsoleCursorPosition(this->stdOutHandle_, makeCOORD(0, this->terminalHeight_ - this->statusLines_)); |
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[6015] | 75 | |
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[6417] | 76 | // Prevent input line from overflowing |
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| 77 | int maxInputLength = (this->terminalHeight_ - this->statusLines_) * this->terminalWidth_ - 1 - this->promptString_.size(); |
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| 78 | // Consider that the echo of a command might include the command plus some other characters (assumed max 80) |
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| 79 | // Also put a minimum so the config file parser is not overwhelmed with the command history |
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| 80 | this->buffer_->setMaxLength(std::min(8192, (maxInputLength - 80) / 2)); |
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[6015] | 81 | |
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[6417] | 82 | // Print input and status line and position cursor |
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| 83 | this->inputChanged(); |
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| 84 | this->cursorChanged(); |
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| 85 | this->lastRefreshTime_ = Game::getInstance().getGameClock().getRealMicroseconds(); |
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| 86 | this->preUpdate(Game::getInstance().getGameClock()); |
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| 87 | |
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| 88 | this->shell_->registerListener(this); |
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[5971] | 89 | } |
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| 90 | |
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[6417] | 91 | //! Resets std::cout redirection and restores the terminal mode |
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[6015] | 92 | IOConsole::~IOConsole() |
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[5971] | 93 | { |
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[6417] | 94 | // Process output written to std::cout in the meantime |
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| 95 | std::cout.flush(); |
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| 96 | if (!this->origCout_.str().empty()) |
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| 97 | this->shell_->addOutput(this->origCout_.str(), Shell::None); |
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[6015] | 98 | |
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[6417] | 99 | this->shell_->unregisterListener(this); |
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| 100 | |
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| 101 | // Erase input and status lines |
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| 102 | COORD pos = {0, this->inputLineRow_}; |
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| 103 | this->writeText(std::string((this->inputLineHeight_ + this->statusLines_) * this->terminalWidth_, ' '), pos); |
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| 104 | // Move cursor to the beginning of the line |
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| 105 | SetConsoleCursorPosition(stdOutHandle_, pos); |
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| 106 | |
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| 107 | // Restore this->cout_ redirection |
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| 108 | std::cout.rdbuf(this->cout_.rdbuf()); |
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[6037] | 109 | // Enable standard this->cout_ logging again |
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[6015] | 110 | OutputHandler::getInstance().enableCout(); |
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[6417] | 111 | |
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| 112 | resetTerminalMode(); |
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| 113 | this->shell_->destroy(); |
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[5971] | 114 | } |
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| 115 | |
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[6417] | 116 | //! Processes the pending input key strokes, refreshes the status lines and handles std::cout (redirected) |
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| 117 | void IOConsole::preUpdate(const Clock& time) |
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[5983] | 118 | { |
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[6417] | 119 | // Process input |
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| 120 | while (true) |
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[6015] | 121 | { |
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[6417] | 122 | DWORD count; |
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| 123 | INPUT_RECORD inrec; |
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| 124 | PeekConsoleInput(this->stdInHandle_, &inrec, 1, &count); |
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| 125 | if (count == 0) |
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[6015] | 126 | break; |
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[6417] | 127 | ReadConsoleInput(this->stdInHandle_, &inrec, 1, &count); |
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| 128 | if (inrec.EventType == KEY_EVENT && inrec.Event.KeyEvent.bKeyDown) |
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| 129 | { |
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| 130 | // Process keyboard modifiers (Ctrl, Alt and Shift) |
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| 131 | DWORD modifiersIn = inrec.Event.KeyEvent.dwControlKeyState; |
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| 132 | int modifiersOut = 0; |
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| 133 | if ((modifiersIn & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED)) != 0) |
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| 134 | modifiersOut |= KeyboardModifier::Alt; |
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| 135 | if ((modifiersIn & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED)) != 0) |
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| 136 | modifiersOut |= KeyboardModifier::Ctrl; |
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| 137 | if ((modifiersIn & SHIFT_PRESSED) != 0) |
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| 138 | modifiersOut |= KeyboardModifier::Shift; |
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| 139 | |
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| 140 | // ASCII character (0 for special keys) |
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| 141 | char asciiChar = inrec.Event.KeyEvent.uChar.AsciiChar; |
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| 142 | |
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| 143 | // Process special keys and if not found, use Key::A as dummy (InputBuffer uses the ASCII text anyway) |
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| 144 | switch (inrec.Event.KeyEvent.wVirtualKeyCode) |
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| 145 | { |
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| 146 | case VK_BACK: this->buffer_->buttonPressed(KeyEvent(KeyCode::Back, asciiChar, modifiersOut)); break; |
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| 147 | case VK_TAB: this->buffer_->buttonPressed(KeyEvent(KeyCode::Tab, asciiChar, modifiersOut)); break; |
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| 148 | case VK_RETURN: this->buffer_->buttonPressed(KeyEvent(KeyCode::Return, asciiChar, modifiersOut)); break; |
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| 149 | case VK_PAUSE: this->buffer_->buttonPressed(KeyEvent(KeyCode::Pause, asciiChar, modifiersOut)); break; |
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| 150 | case VK_ESCAPE: this->buffer_->buttonPressed(KeyEvent(KeyCode::Escape, asciiChar, modifiersOut)); break; |
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| 151 | case VK_SPACE: this->buffer_->buttonPressed(KeyEvent(KeyCode::Space, asciiChar, modifiersOut)); break; |
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| 152 | case VK_PRIOR: this->buffer_->buttonPressed(KeyEvent(KeyCode::PageUp, asciiChar, modifiersOut)); break; |
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| 153 | case VK_NEXT: this->buffer_->buttonPressed(KeyEvent(KeyCode::PageDown, asciiChar, modifiersOut)); break; |
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| 154 | case VK_END: this->buffer_->buttonPressed(KeyEvent(KeyCode::End, asciiChar, modifiersOut)); break; |
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| 155 | case VK_HOME: this->buffer_->buttonPressed(KeyEvent(KeyCode::Home, asciiChar, modifiersOut)); break; |
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| 156 | case VK_LEFT: this->buffer_->buttonPressed(KeyEvent(KeyCode::Left, asciiChar, modifiersOut)); break; |
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| 157 | case VK_UP: this->buffer_->buttonPressed(KeyEvent(KeyCode::Up, asciiChar, modifiersOut)); break; |
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| 158 | case VK_RIGHT: this->buffer_->buttonPressed(KeyEvent(KeyCode::Right, asciiChar, modifiersOut)); break; |
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| 159 | case VK_DOWN: this->buffer_->buttonPressed(KeyEvent(KeyCode::Down, asciiChar, modifiersOut)); break; |
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| 160 | case VK_INSERT: this->buffer_->buttonPressed(KeyEvent(KeyCode::Insert, asciiChar, modifiersOut)); break; |
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| 161 | case VK_DELETE: this->buffer_->buttonPressed(KeyEvent(KeyCode::Delete, asciiChar, modifiersOut)); break; |
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| 162 | default: this->buffer_->buttonPressed(KeyEvent(KeyCode::A, asciiChar, modifiersOut)); |
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| 163 | } |
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| 164 | } |
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[6015] | 165 | } |
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| 166 | |
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[6417] | 167 | // TODO: Respect screen buffer size changes |
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| 168 | /* |
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| 169 | // The user can manually adjust the screen buffer size on Windows |
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| 170 | // And we don't want to screw the console because of that |
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[6015] | 171 | this->lastTerminalWidth_ = this->terminalWidth_; |
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| 172 | this->lastTerminalHeight_ = this->terminalHeight_; |
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[6417] | 173 | this->getTerminalSize(); // Also sets this->inputLineRow_ according to the cursor position |
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| 174 | // Is there still enough space below the cursor for the status line(s)? |
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| 175 | if (this->inputLineRow_ >= this->terminalHeight_ - this->statusLines_) |
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| 176 | this->moveCursor(0, -this->inputLineRow_ + this->terminalHeight_ - this->statusLines_ - 1); |
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[6015] | 177 | */ |
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[6417] | 178 | |
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| 179 | // Refresh status line 5 times per second |
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| 180 | if (time.getMicroseconds() > this->lastRefreshTime_ + 1000000) |
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| 181 | { |
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| 182 | this->printStatusLines(); |
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| 183 | this->lastRefreshTime_ = time.getMicroseconds(); |
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| 184 | } |
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| 185 | |
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| 186 | // Process output written to std::cout |
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| 187 | std::cout.flush(); |
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| 188 | if (!this->origCout_.str().empty()) |
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| 189 | { |
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| 190 | this->shell_->addOutput(this->origCout_.str(), Shell::None); |
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| 191 | this->origCout_.str(""); |
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| 192 | } |
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[5983] | 193 | } |
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| 194 | |
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[6417] | 195 | //! Prints output text. Similar to writeText, but sets the colour according to the output level |
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| 196 | void IOConsole::printOutputLine(const std::string& text, Shell::LineType type, const COORD& pos) |
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[6015] | 197 | { |
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[6417] | 198 | // Colour line |
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| 199 | WORD colour = 0; |
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| 200 | switch (type) |
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| 201 | { |
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| 202 | case Shell::Error: colour = FOREGROUND_INTENSITY | FOREGROUND_RED; break; |
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| 203 | case Shell::Warning: colour = FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED; break; |
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| 204 | case Shell::Info: |
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| 205 | case Shell::Debug: |
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| 206 | case Shell::Verbose: |
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| 207 | case Shell::Ultra: colour = FOREGROUND_INTENSITY ; break; |
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| 208 | case Shell::Command: colour = FOREGROUND_GREEN | FOREGROUND_BLUE; break; |
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| 209 | case Shell::Hint: colour = FOREGROUND_GREEN | FOREGROUND_RED ; break; |
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| 210 | default: colour = FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE; break; |
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| 211 | } |
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[5983] | 212 | |
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[6417] | 213 | // Print output line |
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| 214 | this->writeText(text, pos, colour); |
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[5971] | 215 | } |
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| 216 | |
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[6417] | 217 | //! Prints all status lines with current content |
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[6015] | 218 | void IOConsole::printStatusLines() |
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| 219 | { |
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[6417] | 220 | // Prepare text to be written |
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| 221 | std::ostringstream oss; |
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| 222 | oss << std::fixed << std::setprecision(2) << std::setw(5) << Game::getInstance().getAvgFPS() << " fps, "; |
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| 223 | oss << std::setprecision(2) << std::setw(5) << Game::getInstance().getAvgTickTime() << " ms tick time"; |
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| 224 | // Clear rest of the line by inserting spaces |
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| 225 | oss << std::string(this->terminalWidth_ - oss.str().size(), ' '); |
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| 226 | this->writeText(oss.str(), makeCOORD(0, this->inputLineRow_ + this->inputLineHeight_), FOREGROUND_GREEN); |
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[6015] | 227 | } |
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| 228 | |
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[6417] | 229 | //! Changes the console parameters for unbuffered input |
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[6015] | 230 | void IOConsole::setTerminalMode() |
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| 231 | { |
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[6417] | 232 | // Set the console mode to no-echo, raw input, and no window or mouse events |
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| 233 | this->stdOutHandle_ = GetStdHandle(STD_OUTPUT_HANDLE); |
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| 234 | this->stdInHandle_ = GetStdHandle(STD_INPUT_HANDLE); |
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| 235 | if (this->stdInHandle_ == INVALID_HANDLE_VALUE |
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| 236 | || !GetConsoleMode(this->stdInHandle_, &this->originalTerminalSettings_) |
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| 237 | || !SetConsoleMode(this->stdInHandle_, 0)) |
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| 238 | { |
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| 239 | COUT(1) << "Error: Could not set Windows console settings" << std::endl; |
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| 240 | return; |
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| 241 | } |
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| 242 | FlushConsoleInputBuffer(this->stdInHandle_); |
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[6015] | 243 | } |
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| 244 | |
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[6417] | 245 | //! Restores the console parameters |
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[6015] | 246 | void IOConsole::resetTerminalMode() |
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| 247 | { |
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[6417] | 248 | SetConsoleMode(this->stdInHandle_, this->originalTerminalSettings_); |
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[6015] | 249 | } |
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| 250 | |
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[6417] | 251 | //! Sets this->terminalWidth_ and this->terminalHeight_ |
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[6015] | 252 | void IOConsole::getTerminalSize() |
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| 253 | { |
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[6417] | 254 | CONSOLE_SCREEN_BUFFER_INFO screenBufferInfo; |
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| 255 | GetConsoleScreenBufferInfo(this->stdOutHandle_, &screenBufferInfo); |
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| 256 | this->terminalWidth_ = screenBufferInfo.dwSize.X; |
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| 257 | this->terminalHeight_ = screenBufferInfo.dwSize.Y; |
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[6015] | 258 | } |
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| 259 | |
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[6417] | 260 | //! Writes arbitrary text to the console with a certain colour and screen buffer position |
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| 261 | void IOConsole::writeText(const std::string& text, const COORD& coord, WORD attributes) |
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| 262 | { |
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| 263 | DWORD count; |
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| 264 | WriteConsoleOutputCharacter(stdOutHandle_, text.c_str(), text.size(), coord, &count); |
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| 265 | FillConsoleOutputAttribute(stdOutHandle_, attributes, text.size(), coord, &count); |
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| 266 | } |
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| 267 | |
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| 268 | /** Scrolls the console screen buffer to create empty lines above the input line. |
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| 269 | @details |
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| 270 | If the input and status lines are already at the bottom of the screen buffer |
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| 271 | the whole output gets scrolled up. In the other case the input and status |
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| 272 | lines get scrolled down. |
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| 273 | In any case the status and input lines get scrolled down as far as possible. |
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| 274 | @param lines |
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| 275 | Number of lines to be inserted. Behavior for negative values is undefined. |
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| 276 | */ |
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| 277 | void IOConsole::createNewOutputLines(int lines) |
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| 278 | { |
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| 279 | CHAR_INFO fillChar = {{' '}, FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED}; |
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| 280 | // Lines to scroll input/status down (if possible) |
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| 281 | int linesDown = clamp(terminalHeight_ - inputLineRow_ - inputLineHeight_ - statusLines_, 0, lines); |
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| 282 | if (linesDown > 0) |
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| 283 | { |
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| 284 | // Scroll input and status lines down |
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| 285 | SMALL_RECT oldRect = {0, this->inputLineRow_, |
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| 286 | this->terminalWidth_ - 1, this->inputLineRow_ + this->inputLineHeight_ + this->statusLines_ - 1}; |
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| 287 | this->inputLineRow_ += linesDown; |
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| 288 | ScrollConsoleScreenBuffer(stdOutHandle_, &oldRect, NULL, makeCOORD(0, this->inputLineRow_), &fillChar); |
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| 289 | // Move cursor down to the new bottom so the user can see the status lines |
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| 290 | COORD pos = {0, this->inputLineRow_ + this->inputLineHeight_ - 1 + this->statusLines_}; |
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| 291 | SetConsoleCursorPosition(stdOutHandle_, pos); |
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| 292 | // Get cursor back to the right position |
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| 293 | this->cursorChanged(); |
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| 294 | } |
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| 295 | // Check how many lines we still have to scroll up the output |
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| 296 | if (lines - linesDown > 0) |
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| 297 | { |
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| 298 | // Scroll output up |
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| 299 | SMALL_RECT oldRect = {0, lines - linesDown, this->terminalWidth_ - 1, this->inputLineRow_ - 1}; |
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| 300 | ScrollConsoleScreenBuffer(stdOutHandle_, &oldRect, NULL, makeCOORD(0, 0), &fillChar); |
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| 301 | } |
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| 302 | } |
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| 303 | |
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[6015] | 304 | // ############################### |
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| 305 | // ### ShellListener methods ### |
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| 306 | // ############################### |
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| 307 | |
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[7287] | 308 | //! Called if all output-lines have to be reprinted |
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| 309 | void IOConsole::linesChanged() |
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| 310 | { |
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| 311 | // Method only gets called upon start to draw all the lines |
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| 312 | // or when scrolling. But scrolling is disabled and the output |
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| 313 | // is already in std::cout when we start the IOConsole |
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| 314 | } |
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| 315 | |
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| 316 | //! Called if a command is about to be executed |
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| 317 | void IOConsole::executed() |
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| 318 | { |
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| 319 | this->shell_->addOutput(this->promptString_ + this->shell_->getInput() + '\n', Shell::Command); |
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| 320 | } |
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| 321 | |
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| 322 | //! Called if the console gets closed |
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| 323 | void IOConsole::exit() |
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| 324 | { |
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| 325 | // Exit is not an option, just do nothing (Shell doesn't really exit too) |
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| 326 | } |
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| 327 | |
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[6417] | 328 | //! Called if the text in the input line has changed |
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| 329 | void IOConsole::inputChanged() |
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| 330 | { |
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| 331 | int newInputLineLength = this->promptString_.size() + this->shell_->getInput().size(); |
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| 332 | int newInputLineHeight = 1 + newInputLineLength / this->terminalWidth_; |
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| 333 | int newLines = newInputLineHeight - this->inputLineHeight_; |
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| 334 | if (newLines > 0) |
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| 335 | { |
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| 336 | // Abuse this function to scroll the console |
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| 337 | this->createNewOutputLines(newLines); |
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| 338 | // Either Compensate for side effects (input/status lines scrolled down) |
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| 339 | // or we have to do this anyway (output scrolled up) |
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| 340 | this->inputLineRow_ -= newLines; |
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| 341 | } |
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| 342 | else if (newLines < 0) |
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| 343 | { |
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| 344 | // Scroll status lines up |
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| 345 | int statusLineRow = this->inputLineRow_ + this->inputLineHeight_; |
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| 346 | SMALL_RECT oldRect = {0, statusLineRow, this->terminalWidth_ - 1, statusLineRow + this->statusLines_}; |
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| 347 | CHAR_INFO fillChar = {{' '}, FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED}; |
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| 348 | ScrollConsoleScreenBuffer(stdOutHandle_, &oldRect, NULL, makeCOORD(0, statusLineRow + newLines), &fillChar); |
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| 349 | // Clear potential leftovers |
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| 350 | if (-newLines - this->statusLines_ > 0) |
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| 351 | { |
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| 352 | COORD pos = {0, this->inputLineRow_ + newInputLineHeight + this->statusLines_}; |
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| 353 | this->writeText(std::string((-newLines - this->statusLines_) * this->terminalWidth_, ' '), pos); |
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| 354 | } |
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| 355 | } |
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| 356 | this->inputLineHeight_ = newInputLineHeight; |
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| 357 | |
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| 358 | // Print the whole line, including spaces that erase leftovers |
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| 359 | std::string inputLine = this->promptString_ + this->shell_->getInput(); |
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| 360 | inputLine += std::string(this->terminalWidth_ - newInputLineLength % this->terminalWidth_, ' '); |
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| 361 | this->writeText(inputLine, makeCOORD(0, this->inputLineRow_), FOREGROUND_GREEN | FOREGROUND_INTENSITY); |
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| 362 | // If necessary, move cursor |
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| 363 | if (newLines != 0) |
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| 364 | this->cursorChanged(); |
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| 365 | } |
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| 366 | |
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| 367 | //! Called if the position of the cursor in the input-line has changed |
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| 368 | void IOConsole::cursorChanged() |
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| 369 | { |
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| 370 | int rawCursorPos = this->promptString_.size() + this->buffer_->getCursorPosition(); |
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| 371 | // Compensate for cursor further to the right than the terminal width |
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| 372 | COORD pos; |
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| 373 | pos.X = rawCursorPos % this->terminalWidth_; |
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| 374 | pos.Y = this->inputLineRow_ + rawCursorPos / this->terminalWidth_; |
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| 375 | SetConsoleCursorPosition(stdOutHandle_, pos); |
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| 376 | } |
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| 377 | |
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[6015] | 378 | //! Called if only the last output-line has changed |
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| 379 | void IOConsole::onlyLastLineChanged() |
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| 380 | { |
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[6417] | 381 | int newLineHeight = 1 + this->shell_->getNewestLineIterator()->first.size() / this->terminalWidth_; |
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| 382 | // Compute the number of new lines needed |
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| 383 | int newLines = newLineHeight - this->lastOutputLineHeight_; |
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| 384 | this->lastOutputLineHeight_ = newLineHeight; |
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| 385 | // Scroll console if necessary |
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| 386 | if (newLines > 0) // newLines < 0 is assumed impossible |
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| 387 | this->createNewOutputLines(newLines); |
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| 388 | Shell::LineList::const_iterator it = this->shell_->getNewestLineIterator(); |
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| 389 | this->printOutputLine(it->first, it->second, makeCOORD(0, this->inputLineRow_ - newLineHeight)); |
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[6015] | 390 | } |
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| 391 | |
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[6417] | 392 | //! Called if a new output line was added |
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[6015] | 393 | void IOConsole::lineAdded() |
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| 394 | { |
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[6417] | 395 | Shell::LineList::const_iterator it = this->shell_->getNewestLineIterator(); |
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| 396 | // Scroll console |
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| 397 | this->lastOutputLineHeight_ = 1 + it->first.size() / this->terminalWidth_; |
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| 398 | this->createNewOutputLines(this->lastOutputLineHeight_); |
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| 399 | // Write the text |
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| 400 | COORD pos = {0, this->inputLineRow_ - this->lastOutputLineHeight_}; |
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| 401 | this->printOutputLine(it->first, it->second, pos); |
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[6015] | 402 | } |
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[5971] | 403 | } |
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