src/console.cpp

   1 /*
   2   Copyright (c) 2006 Paolo Capriotti <p.capriotti@gmail.com>
   3             (c) 2006 Maurizio Monge <maurizio.monge@kdemail.net>
   4
   5   This program is free software; you can redistribute it and/or modify
   6   it under the terms of the GNU General Public License as published by
   7   the Free Software Foundation; either version 2 of the License, or
   8   (at your option) any later version.
   9 */
  10
  11 #include "console.h"
  12
  13 #include <QApplication>
  14 #include <QFile>
  15 #include <QFont>
  16 #include <QLabel>
  17 #include <QLayout>
  18 #include <QLineEdit>
  19 #include <QScrollBar>
  20 #include <QTextCursor>
  21 #include <QTextEdit>
  22
  23 #include <boost/scoped_ptr.hpp>
  24 #include <KDebug>
  25 #include <KGlobal>
  26 #include <KStandardDirs>
  27
  28 #include "common.h"
  29 #include "foreach.h"
  30 #include "histlineedit.h"
  31 #include "highlighter.h"
  32 #include "mastersettings.h"
  33
  34
  35 class BackInserterPatternIteratorAdaptor : public PatternListAdaptorOutputIterator {
  36   std::vector<Highlighter::Pattern>& m_vector;
  37 public:
  38   BackInserterPatternIteratorAdaptor(std::vector<Highlighter::Pattern>& vector)
  39   : m_vector(vector) { }
  40
  41   virtual void add(const Highlighter::Pattern& p) {
  42     m_vector.push_back(p);
  43   }
  44 };
  45
  46
  47 ConsoleOutput::ConsoleOutput(QTextEdit* edit, bool force_scroll)
  48 : m_edit(edit) {
  49   m_old_val = m_edit->verticalScrollBar()->value();
  50   m_scroll_to = force_scroll || (m_edit->verticalScrollBar()->value()
  51                                   >= m_edit->verticalScrollBar()->maximum() );
  52
  53   QTextCursor cursor = m_edit->textCursor();
  54   cursor.movePosition(QTextCursor::End);
  55   m_edit->setTextCursor(cursor);
  56 }
  57
  58 ConsoleOutput::~ConsoleOutput() {
  59   if(m_scroll_to)
  60     m_edit->verticalScrollBar()->setValue(m_edit->verticalScrollBar()->maximum());
  61   else
  62     m_edit->verticalScrollBar()->setValue(m_old_val);
  63     //m_edit->ensureCursorVisible();
  64 }
  65
  66 void ConsoleOutput::operator()(const QString& text) {
  67   m_edit->insertPlainText(text);
  68 }
  69
  70 LuaConsoleHighlighter::LuaConsoleHighlighter()
  71 : m_display(0) {
  72   KStandardDirs* dirs = KGlobal::dirs();
  73
  74   QString luaHighlightingLibrary = dirs->locate("appdata", "scripts/hllib.lua");
  75   kDebug() << "lua lib: " << luaHighlightingLibrary;
  76   m_api.runFile(qPrintable(luaHighlightingLibrary));
  77
  78   QStringList highlighting = dirs->findAllResources("appdata", "highlighting/*.lua", KStandardDirs::Recursive);
  79   foreach (QString f, highlighting) {
  80     kDebug() << "lua highlighting file: " << f;
  81     m_api.runFile(qPrintable(f));
  82   }
  83 }
  84
  85 void LuaConsoleHighlighter::setDisplay(QTextEdit* display) {
  86   m_display = display;
  87 }
  88
  89 LuaConsoleHighlighter::Executor::Executor(QTextEdit* display, ConsoleOutput& output)
  90 : m_display(display)
  91 , m_output(output) { }
  92
  93 void LuaConsoleHighlighter::Executor::writeChunk(const QString& text) {
  94   m_output(text);
  95 }
  96
  97 void LuaConsoleHighlighter::Executor::setFormat(const QTextCharFormat& format) {
  98   m_display->setCurrentCharFormat(format);
  99 }
 100
 101 LuaConsoleHighlighter::Executor::~Executor() {
 102 //   m_output("\n");
 103 }
 104
 105 void LuaConsoleHighlighter::operator()(const QString& text, ConsoleOutput& output) {
 106   QStringList lines = text.split('\n');
 107
 108   for (int i = 0; i < lines.size(); i++) {
 109     const QString& line = lines[i];
 110     boost::scoped_ptr<HLine> hline(m_api.highlight(line));
 111     if (hline) {
 112       Executor executor(m_display, output);
 113       hline->run(executor);
 114       if (i < lines.size() - 1) output("\n");
 115     }
 116   }
 117 }
 118
 119 #if 0
 120 ConsoleHighlighter::ConsoleHighlighter()
 121 : m_display(0) {
 122   BackInserterPatternIteratorAdaptor out(m_patterns);
 123   Highlighter::load(out);
 124 }
 125
 126 void ConsoleHighlighter::setDisplay(QTextEdit* display) {
 127   m_display = display;
 128   m_basic_format = m_display->currentCharFormat();
 129 }
 130
 131 void ConsoleHighlighter::operator()(const QString& text, ConsoleOutput& output) {
 132   Q_ASSERT(m_display);
 133
 134   int offset = 0;
 135   m_display->setCurrentCharFormat(m_basic_format);
 136
 137   while (true) {
 138     int best = -1;
 139     int best_offset = -1;
 140     int best_length = 0;
 141
 142     // try each pattern and find the closest matching one
 143     for (uint i = 0; i < m_patterns.size(); i++) {
 144       int match_offset = text.indexOf(m_patterns[i].pattern, offset);
 145       if (match_offset >= 0 &&
 146           (best_offset == -1 || match_offset < best_offset)) {
 147         int length = m_patterns[i].pattern.matchedLength();
 148         if (length > 0) {
 149           best = i;
 150           best_offset = match_offset;
 151           best_length = length;
 152         }
 153       }
 154     }
 155
 156     if (best >= 0) {
 157       // output the portion of the text before the matching
 158       // substring
 159 //       kDebug() << "outputting plain: " << text.mid(offset, best_offset - offset);
 160 //       kDebug() << "weight = " << m_display->currentCharFormat().fontWeight();
 161       output(text.mid(offset, best_offset - offset));
 162
 163       // change format
 164       m_display->setCurrentCharFormat(m_patterns[best].format);
 165
 166       // output the matching substring
 167 //       kDebug() << "outputting formatted: " << text.mid(best_offset, best_length);
 168 //       kDebug() << "weight = " << m_display->currentCharFormat().fontWeight();
 169       output(text.mid(best_offset, best_length));
 170
 171       // restore basic format
 172       m_display->setCurrentCharFormat(m_basic_format);
 173 //       kDebug() << "restored";
 174 //       kDebug() << "weight = " << m_display->currentCharFormat().fontWeight();
 175
 176       // update offset
 177       offset = best_offset + best_length;
 178     }
 179     else break;
 180   }
 181
 182   // output the last portion of the text
 183 //   kDebug() << "outputting plain: " << text.mid(offset);
 184   output(text.mid(offset));
 185 //   kDebug() << "weight = " << m_display->currentCharFormat().fontWeight();
 186 }
 187 #endif
 188
 189 QRegExp Console::promptRegexp("([a-zA-Z0-9]*% )");
 190
 191 Console::Console(QWidget* parent, const QString& caption)
 192 : QWidget(parent) {
 193   setObjectName("console");
 194
 195   resize(600,600);
 196   setWindowTitle(caption);
 197
 198   QBoxLayout* layout = new QVBoxLayout(this);
 199   QHBoxLayout* promptLayout = new QHBoxLayout;
 200   layout->setMargin(0);
 201   layout->setSpacing(0);
 202   promptLayout->setMargin(0);
 203   promptLayout->setSpacing(0);
 204
 205   edit = new HistLineEdit(this);
 206   display = new QTextEdit(this);
 207   prompt = new QLabel(this);
 208
 209   setFocusProxy(edit);
 210
 211   layout->addWidget(display);
 212   layout->addLayout(promptLayout);
 213
 214   promptLayout->addWidget(prompt);
 215   promptLayout->addWidget(edit);
 216
 217   display->setFocusProxy(edit);
 218   display->setReadOnly(true);
 219   ////display->setTextFormat(QTextEdit::PlainText);
 220   display->setAcceptRichText(false);
 221   display->setWordWrapMode (QTextOption::NoWrap);
 222   display->setUndoRedoEnabled (false);
 223   Settings s_console = settings().group("console");
 224   if (!s_console["font"]) {
 225     QFont f = QApplication::font();
 226     f.setFamily("Monospace");
 227     s_console["font"] = f;
 228   }
 229   display->setFont(s_console["font"].value<QFont>());
 230
 231   display->setFontWeight(QFont::Normal);
 232   m_highlighter.setDisplay(display);
 233
 234   connect(edit, SIGNAL(receivedInput(const QString&)),
 235           this, SLOT(input(const QString&)));
 236 }
 237
 238 void Console::echo(const QString& text) {
 239   ConsoleOutput output(display, true);
 240   display->setFontWeight(QFont::Bold);
 241   output(text + "\n");
 242   display->setFontWeight(QFont::Normal);
 243 }
 244
 245 void Console::input(const QString& text) {
 246   if (edit->echoMode() == QLineEdit::Password) {
 247 //    edit->setEchoMode(QLineEdit::Normal);
 248     echo("(password sent)");
 249   }
 250   else {
 251     // echo inputted text
 252     echo(text);
 253   }
 254
 255   if (m_notifier)
 256     m_notifier->textNotify(text);
 257   receivedInput(text);
 258 }
 259
 260 void Console::displayText(QString text, int offset) {
 261   if (offset == 0 && promptRegexp.indexIn(text) == 0) {
 262     prompt->setText(" " + promptRegexp.cap(1));
 263     offset += promptRegexp.cap(1).length();
 264   }
 265
 266   text = text.mid(offset);
 267   text.replace("\t", "    ");
 268
 269   QByteArray bytes = text.toAscii();
 270   if (bytes.contains("\xff\xfc\x01")) {
 271     edit->setEchoMode(QLineEdit::Normal);
 272   }
 273   else if (bytes.contains("\xff\xfb\x01")) {
 274     edit->setEchoMode(QLineEdit::Password);
 275   }
 276
 277   if (text[offset].isPrint()) {
 278     ConsoleOutput output(display);
 279     m_highlighter(text, output);
 280   }
 281 }
 282
 283 void Console::clear() {
 284   display->clear();
 285 }
 286
 287
 288
 289