1 /***************************************************************************
2 * Copyright (C) 2005-2010 by the Quassel Project *
3 * devel@quassel-irc.org *
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) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
21 #include <QApplication>
23 #include <QMessageBox>
26 #include "bufferview.h"
27 #include "graphicalui.h"
28 #include "multilineedit.h"
29 #include "tabcompleter.h"
31 const int leftMargin = 3;
33 MultiLineEdit::MultiLineEdit(QWidget *parent)
45 _scrollBarsEnabled(true),
46 _lastDocumentHeight(-1)
48 #if QT_VERSION >= 0x040500
49 document()->setDocumentMargin(0); // new in Qt 4.5 and we really don't want it here
52 setAcceptRichText(false);
54 enableFindReplace(false);
58 setWordWrapEnabled(false);
61 connect(this, SIGNAL(textChanged()), this, SLOT(on_textChanged()));
63 _mircColorMap["00"] = "#ffffff";
64 _mircColorMap["01"] = "#000000";
65 _mircColorMap["02"] = "#000080";
66 _mircColorMap["03"] = "#008000";
67 _mircColorMap["04"] = "#ff0000";
68 _mircColorMap["05"] = "#800000";
69 _mircColorMap["06"] = "#800080";
70 _mircColorMap["07"] = "#ffa500";
71 _mircColorMap["08"] = "#ffff00";
72 _mircColorMap["09"] = "#00ff00";
73 _mircColorMap["10"] = "#008080";
74 _mircColorMap["11"] = "#00ffff";
75 _mircColorMap["12"] = "#4169e1";
76 _mircColorMap["13"] = "#ff00ff";
77 _mircColorMap["14"] = "#808080";
78 _mircColorMap["15"] = "#c0c0c0";
82 MultiLineEdit::~MultiLineEdit() {
85 void MultiLineEdit::setCustomFont(const QFont &font) {
90 void MultiLineEdit::setMode(Mode mode) {
97 void MultiLineEdit::setMinHeight(int lines) {
98 if(lines == _minHeight)
105 void MultiLineEdit::setMaxHeight(int lines) {
106 if(lines == _maxHeight)
113 void MultiLineEdit::setScrollBarsEnabled(bool enable) {
114 if(_scrollBarsEnabled == enable)
117 _scrollBarsEnabled = enable;
121 void MultiLineEdit::updateScrollBars() {
122 QFontMetrics fm(font());
123 int _maxPixelHeight = fm.lineSpacing() * _maxHeight;
124 if(_scrollBarsEnabled && document()->size().height() > _maxPixelHeight)
125 setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
127 setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
129 if(!_scrollBarsEnabled || isSingleLine())
130 setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
132 setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
135 void MultiLineEdit::resizeEvent(QResizeEvent *event) {
136 QTextEdit::resizeEvent(event);
141 void MultiLineEdit::updateSizeHint() {
142 QFontMetrics fm(font());
143 int minPixelHeight = fm.lineSpacing() * _minHeight;
144 int maxPixelHeight = fm.lineSpacing() * _maxHeight;
145 int scrollBarHeight = horizontalScrollBar()->isVisible() ? horizontalScrollBar()->height() : 0;
147 // use the style to determine a decent size
148 int h = qMin(qMax((int)document()->size().height() + scrollBarHeight, minPixelHeight), maxPixelHeight) + 2 * frameWidth();
149 QStyleOptionFrameV2 opt;
151 opt.rect = QRect(0, 0, 100, h);
152 opt.lineWidth = lineWidth();
153 opt.midLineWidth = midLineWidth();
154 opt.state |= QStyle::State_Sunken;
155 QSize s = style()->sizeFromContents(QStyle::CT_LineEdit, &opt, QSize(100, h).expandedTo(QApplication::globalStrut()), this);
162 QSize MultiLineEdit::sizeHint() const {
163 if(!_sizeHint.isValid()) {
164 MultiLineEdit *that = const_cast<MultiLineEdit *>(this);
165 that->updateSizeHint();
170 QSize MultiLineEdit::minimumSizeHint() const {
174 void MultiLineEdit::setSpellCheckEnabled(bool enable) {
176 setCheckSpellingEnabled(enable);
182 void MultiLineEdit::setWordWrapEnabled(bool enable) {
183 setLineWrapMode(enable? WidgetWidth : NoWrap);
187 void MultiLineEdit::setPasteProtectionEnabled(bool enable, QWidget *) {
188 _pasteProtectionEnabled = enable;
191 void MultiLineEdit::historyMoveBack() {
192 addToHistory(convertRichtextToMircCodes(), true);
200 void MultiLineEdit::historyMoveForward() {
201 addToHistory(convertRichtextToMircCodes(), true);
203 if(_idx < _history.count()) {
205 if(_idx < _history.count() || _tempHistory.contains(_idx)) // tempHistory might have an entry for idx == history.count() + 1
208 reset(); // equals clear() in this case
210 addToHistory(convertRichtextToMircCodes());
215 bool MultiLineEdit::addToHistory(const QString &text, bool temporary) {
219 Q_ASSERT(0 <= _idx && _idx <= _history.count());
222 // if an entry of the history is changed, we remember it and show it again at this
223 // position until a line was actually sent
224 // sent lines get appended to the history
225 if(_history.isEmpty() || text != _history[_idx - (int)(_idx == _history.count())]) {
226 _tempHistory[_idx] = text;
230 if(_history.isEmpty() || text != _history.last()) {
232 _tempHistory.clear();
239 void MultiLineEdit::keyPressEvent(QKeyEvent *event) {
240 // Workaround the fact that Qt < 4.5 doesn't know InsertLineSeparator yet
241 #if QT_VERSION >= 0x040500
242 if(event == QKeySequence::InsertLineSeparator) {
246 if((event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) && event->modifiers() & Qt::META) {
248 if((event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) && event->modifiers() & Qt::SHIFT) {
252 if(_mode == SingleLine) {
258 KTextEdit::keyPressEvent(event);
260 QTextEdit::keyPressEvent(event);
265 switch(event->key()) {
267 if(event->modifiers() & Qt::ShiftModifier)
271 if(!(event->modifiers() & Qt::ControlModifier)) {
272 int pos = textCursor().position();
273 moveCursor(QTextCursor::Up);
274 if(pos == textCursor().position()) // already on top line -> history
282 if(event->modifiers() & Qt::ShiftModifier)
286 if(!(event->modifiers() & Qt::ControlModifier)) {
287 int pos = textCursor().position();
288 moveCursor(QTextCursor::Down);
289 if(pos == textCursor().position()) // already on bottom line -> history
290 historyMoveForward();
292 historyMoveForward();
303 // We don't want to have the tab key react even if no completer is installed
314 KTextEdit::keyPressEvent(event);
316 QTextEdit::keyPressEvent(event);
320 QString MultiLineEdit::convertRichtextToMircCodes() {
321 bool underline, bold, italic, color;
322 QString mircText, mircFgColor, mircBgColor;
323 QTextCursor cursor = textCursor();
324 QTextCursor peekcursor = textCursor();
325 cursor.movePosition(QTextCursor::Start);
327 underline = bold = italic = color = false;
329 while (cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor)) {
331 if (cursor.selectedText() == QString(QChar(QChar::LineSeparator))) {
334 mircText.append('\x03');
338 mircText.append('\x1f');
342 mircText.append('\x1d');
346 mircText.append('\x02');
348 mircText.append('\n');
351 if (!bold && cursor.charFormat().font().bold()) {
353 mircText.append('\x02');
355 if (!italic && cursor.charFormat().fontItalic()) {
357 mircText.append('\x1d');
359 if (!underline && cursor.charFormat().fontUnderline()) {
361 mircText.append('\x1f');
363 if (!color && (cursor.charFormat().foreground().isOpaque() || cursor.charFormat().background().isOpaque())) {
365 mircText.append('\x03');
366 mircFgColor = _mircColorMap.key(cursor.charFormat().foreground().color().name());
367 mircBgColor = _mircColorMap.key(cursor.charFormat().background().color().name());
369 if (mircFgColor.isEmpty()) {
370 mircFgColor = "01"; //use black if the current foreground color can't be converted
373 mircText.append(mircFgColor);
374 if (cursor.charFormat().background().isOpaque())
375 mircText.append("," + mircBgColor);
378 mircText.append(cursor.selectedText());
380 peekcursor.setPosition(cursor.position());
381 peekcursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
383 if (mircCodesChanged(cursor, peekcursor)) {
386 mircText.append('\x03');
390 mircText.append('\x1f');
394 mircText.append('\x1d');
398 mircText.append('\x02');
403 cursor.clearSelection();
407 mircText.append('\x03');
411 mircText.append('\x1f');
415 mircText.append('\x1d');
419 mircText.append('\x02');
425 bool MultiLineEdit::mircCodesChanged(QTextCursor &cursor, QTextCursor &peekcursor) {
426 bool changed = false;
427 if (cursor.charFormat().font().bold() != peekcursor.charFormat().font().bold())
429 if (cursor.charFormat().fontItalic() != peekcursor.charFormat().fontItalic())
431 if (cursor.charFormat().fontUnderline() != peekcursor.charFormat().fontUnderline())
433 if (cursor.charFormat().foreground().color() != peekcursor.charFormat().foreground().color())
435 if (cursor.charFormat().background().color() != peekcursor.charFormat().background().color())
440 QString MultiLineEdit::convertMircCodesToHtml(const QString &text) {
442 QRegExp mircCode = QRegExp("(
\ 2|
\1d|
\1f|
\ 3)", Qt::CaseSensitive);
448 posRight = mircCode.indexIn(text, posLeft);
451 words << text.mid(posLeft);
452 break; // no more mirc color codes
455 if (posLeft < posRight) {
456 words << text.mid(posLeft, posRight - posLeft);
460 posRight = text.indexOf(mircCode.cap(), posRight + 1);
461 words << text.mid(posLeft, posRight + 1 - posLeft);
462 posLeft = posRight + 1;
465 for (int i = 0; i < words.count(); i++) {
467 if (words[i].contains('\x02')) {
468 style.append(" font-weight:600;");
469 words[i].replace('\x02',"");
471 if (words[i].contains('\x1d')) {
472 style.append(" font-style:italic;");
473 words[i].replace('\x1d',"");
475 if (words[i].contains('\x1f')) {
476 style.append(" text-decoration: underline;");
477 words[i].replace('\x1f',"");
479 if (words[i].contains('\x03')) {
480 int pos = words[i].indexOf('\x03');
482 QString fg = words[i].mid(pos + 1,2);
484 if (words[i][pos+3] == ',')
485 bg = words[i].mid(pos+4,2);
487 style.append(" color:");
488 style.append(_mircColorMap[fg]);
492 style.append(" background-color:");
493 style.append(_mircColorMap[bg]);
497 words[i].replace(pos, len, "");
498 words[i].replace('\x03',"");
500 words[i].replace("&","&");
501 words[i].replace("<", "<");
502 words[i].replace(">", ">");
503 words[i].replace("\"", """);
504 if (style.isEmpty()) {
505 words[i] = "<span>" + words[i] + "</span>";
508 words[i] = "<span style=\"" + style + "\">" + words[i] + "</span>";
511 return words.join("").replace("\n","<br />");
514 void MultiLineEdit::on_returnPressed() {
515 on_returnPressed(convertRichtextToMircCodes());
518 void MultiLineEdit::on_returnPressed(const QString & text) {
519 if(!text.isEmpty()) {
520 foreach(const QString &line, text.split('\n', QString::SkipEmptyParts)) {
524 emit textEntered(line);
527 _tempHistory.clear();
529 emit noTextEntered();
533 void MultiLineEdit::on_textChanged() {
534 QString newText = text();
535 newText.replace("\r\n", "\n");
536 newText.replace('\r', '\n');
537 if(_mode == SingleLine) {
538 if(!pasteProtectionEnabled())
539 newText.replace('\n', ' ');
540 else if(newText.contains('\n')) {
541 QStringList lines = newText.split('\n', QString::SkipEmptyParts);
544 if(lines.count() >= 4) {
545 QString msg = tr("Do you really want to paste %n lines?", "", lines.count());
547 for(int i = 0; i < 4; i++) {
548 msg += Qt::escape(lines[i].left(40));
549 if(lines[i].count() > 40)
554 QMessageBox question(QMessageBox::NoIcon, tr("Paste Protection"), msg, QMessageBox::Yes|QMessageBox::No);
555 question.setDefaultButton(QMessageBox::No);
557 question.setWindowFlags(question.windowFlags() | Qt::Sheet);
559 if(question.exec() != QMessageBox::Yes)
563 foreach(QString line, lines) {
571 _singleLine = (newText.indexOf('\n') < 0);
573 if(document()->size().height() != _lastDocumentHeight) {
574 _lastDocumentHeight = document()->size().height();
575 on_documentHeightChanged(_lastDocumentHeight);
578 ensureCursorVisible();
581 void MultiLineEdit::on_documentHeightChanged(qreal) {
585 void MultiLineEdit::reset() {
586 // every time the MultiLineEdit is cleared we also reset history index
587 _idx = _history.count();
589 QTextBlockFormat format = textCursor().blockFormat();
590 format.setLeftMargin(leftMargin); // we want a little space between the frame and the contents
591 textCursor().setBlockFormat(format);
595 void MultiLineEdit::showHistoryEntry() {
596 // if the user changed the history, display the changed line
597 setHtml(convertMircCodesToHtml(_tempHistory.contains(_idx) ? _tempHistory[_idx] : _history[_idx]));
598 QTextCursor cursor = textCursor();
599 QTextBlockFormat format = cursor.blockFormat();
600 format.setLeftMargin(leftMargin); // we want a little space between the frame and the contents
601 cursor.setBlockFormat(format);
602 cursor.movePosition(QTextCursor::End);
603 setTextCursor(cursor);