/***************************************************************************
* Copyright (C) 2005-2010 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) version 3. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include
#include
#include
#include
#include "bufferview.h"
#include "graphicalui.h"
#include "multilineedit.h"
#include "tabcompleter.h"
const int leftMargin = 3;
MultiLineEdit::MultiLineEdit(QWidget *parent)
:
#ifdef HAVE_KDE
KTextEdit(parent),
#else
QTextEdit(parent),
#endif
idx(0),
_mode(SingleLine),
_singleLine(true),
_minHeight(1),
_maxHeight(5),
_scrollBarsEnabled(true),
_lastDocumentHeight(-1)
{
#if QT_VERSION >= 0x040500
document()->setDocumentMargin(0); // new in Qt 4.5 and we really don't want it here
#endif
setAcceptRichText(false);
#ifdef HAVE_KDE
enableFindReplace(false);
#endif
setMode(SingleLine);
setWordWrapEnabled(false);
reset();
connect(this, SIGNAL(textChanged()), this, SLOT(on_textChanged()));
_mircColorMap["00"] = "#ffffff";
_mircColorMap["01"] = "#000000";
_mircColorMap["02"] = "#000080";
_mircColorMap["03"] = "#008000";
_mircColorMap["04"] = "#ff0000";
_mircColorMap["05"] = "#800000";
_mircColorMap["06"] = "#800080";
_mircColorMap["07"] = "#ffa500";
_mircColorMap["08"] = "#ffff00";
_mircColorMap["09"] = "#00ff00";
_mircColorMap["10"] = "#008080";
_mircColorMap["11"] = "#00ffff";
_mircColorMap["12"] = "#4169e1";
_mircColorMap["13"] = "#ff00ff";
_mircColorMap["14"] = "#808080";
_mircColorMap["15"] = "#c0c0c0";
}
MultiLineEdit::~MultiLineEdit() {
}
void MultiLineEdit::setCustomFont(const QFont &font) {
setFont(font);
updateSizeHint();
}
void MultiLineEdit::setMode(Mode mode) {
if(mode == _mode)
return;
_mode = mode;
}
void MultiLineEdit::setMinHeight(int lines) {
if(lines == _minHeight)
return;
_minHeight = lines;
updateSizeHint();
}
void MultiLineEdit::setMaxHeight(int lines) {
if(lines == _maxHeight)
return;
_maxHeight = lines;
updateSizeHint();
}
void MultiLineEdit::setScrollBarsEnabled(bool enable) {
if(_scrollBarsEnabled == enable)
return;
_scrollBarsEnabled = enable;
updateScrollBars();
}
void MultiLineEdit::updateScrollBars() {
QFontMetrics fm(font());
int _maxPixelHeight = fm.lineSpacing() * _maxHeight;
if(_scrollBarsEnabled && document()->size().height() > _maxPixelHeight)
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
else
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
if(!_scrollBarsEnabled || isSingleLine())
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
else
setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
}
void MultiLineEdit::resizeEvent(QResizeEvent *event) {
QTextEdit::resizeEvent(event);
updateSizeHint();
updateScrollBars();
}
void MultiLineEdit::updateSizeHint() {
QFontMetrics fm(font());
int minPixelHeight = fm.lineSpacing() * _minHeight;
int maxPixelHeight = fm.lineSpacing() * _maxHeight;
int scrollBarHeight = horizontalScrollBar()->isVisible() ? horizontalScrollBar()->height() : 0;
// use the style to determine a decent size
int h = qMin(qMax((int)document()->size().height() + scrollBarHeight, minPixelHeight), maxPixelHeight) + 2 * frameWidth();
QStyleOptionFrameV2 opt;
opt.initFrom(this);
opt.rect = QRect(0, 0, 100, h);
opt.lineWidth = lineWidth();
opt.midLineWidth = midLineWidth();
opt.state |= QStyle::State_Sunken;
QSize s = style()->sizeFromContents(QStyle::CT_LineEdit, &opt, QSize(100, h).expandedTo(QApplication::globalStrut()), this);
if(s != _sizeHint) {
_sizeHint = s;
updateGeometry();
}
}
QSize MultiLineEdit::sizeHint() const {
if(!_sizeHint.isValid()) {
MultiLineEdit *that = const_cast(this);
that->updateSizeHint();
}
return _sizeHint;
}
QSize MultiLineEdit::minimumSizeHint() const {
return sizeHint();
}
void MultiLineEdit::setSpellCheckEnabled(bool enable) {
#ifdef HAVE_KDE
setCheckSpellingEnabled(enable);
#else
Q_UNUSED(enable)
#endif
}
void MultiLineEdit::setWordWrapEnabled(bool enable) {
setLineWrapMode(enable? WidgetWidth : NoWrap);
updateSizeHint();
}
void MultiLineEdit::setPasteProtectionEnabled(bool enable, QWidget *) {
_pasteProtectionEnabled = enable;
}
void MultiLineEdit::historyMoveBack() {
addToHistory(convertHtmlToMircCodes(html()), true);
if(idx > 0) {
idx--;
showHistoryEntry();
}
}
void MultiLineEdit::historyMoveForward() {
addToHistory(convertHtmlToMircCodes(html()), true);
if(idx < history.count()) {
idx++;
if(idx < history.count() || tempHistory.contains(idx)) // tempHistory might have an entry for idx == history.count() + 1
showHistoryEntry();
else
reset(); // equals clear() in this case
} else {
addToHistory(convertHtmlToMircCodes(html()));
reset();
}
}
bool MultiLineEdit::addToHistory(const QString &text, bool temporary) {
if(text.isEmpty())
return false;
Q_ASSERT(0 <= idx && idx <= history.count());
if(temporary) {
// if an entry of the history is changed, we remember it and show it again at this
// position until a line was actually sent
// sent lines get appended to the history
if(history.isEmpty() || text != history[idx - (int)(idx == history.count())]) {
tempHistory[idx] = text;
return true;
}
} else {
if(history.isEmpty() || text != history.last()) {
history << text;
tempHistory.clear();
return true;
}
}
return false;
}
void MultiLineEdit::keyPressEvent(QKeyEvent *event) {
// Workaround the fact that Qt < 4.5 doesn't know InsertLineSeparator yet
#if QT_VERSION >= 0x040500
if(event == QKeySequence::InsertLineSeparator) {
#else
# ifdef Q_WS_MAC
if((event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) && event->modifiers() & Qt::META) {
# else
if((event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) && event->modifiers() & Qt::SHIFT) {
# endif
#endif
if(_mode == SingleLine) {
event->accept();
on_returnPressed();
return;
}
#ifdef HAVE_KDE
KTextEdit::keyPressEvent(event);
#else
QTextEdit::keyPressEvent(event);
#endif
return;
}
switch(event->key()) {
case Qt::Key_Up:
if(event->modifiers() & Qt::ShiftModifier)
break;
{
event->accept();
if(!(event->modifiers() & Qt::ControlModifier)) {
int pos = textCursor().position();
moveCursor(QTextCursor::Up);
if(pos == textCursor().position()) // already on top line -> history
historyMoveBack();
} else
historyMoveBack();
return;
}
case Qt::Key_Down:
if(event->modifiers() & Qt::ShiftModifier)
break;
{
event->accept();
if(!(event->modifiers() & Qt::ControlModifier)) {
int pos = textCursor().position();
moveCursor(QTextCursor::Down);
if(pos == textCursor().position()) // already on bottom line -> history
historyMoveForward();
} else
historyMoveForward();
return;
}
case Qt::Key_Return:
case Qt::Key_Enter:
case Qt::Key_Select:
event->accept();
on_returnPressed();
return;
// We don't want to have the tab key react even if no completer is installed
case Qt::Key_Tab:
event->accept();
return;
default:
;
}
#ifdef HAVE_KDE
KTextEdit::keyPressEvent(event);
#else
QTextEdit::keyPressEvent(event);
#endif
}
QString MultiLineEdit::convertHtmlToMircCodes(const QString &text) {
QRegExp regexHtmlContent = QRegExp("(.*)
", Qt::CaseInsensitive);
QRegExp regexLines = QRegExp("(?:(.*)\\n?)", Qt::CaseInsensitive);
regexLines.setMinimal(true);
QRegExp regexStyles = QRegExp("(?:(()(.*)))", Qt::CaseInsensitive);
regexStyles.setMinimal(true);
QRegExp regexColors = QRegExp("((?:background-)?color):(#[0-9a-f]{6})", Qt::CaseInsensitive);
regexStyles.setMinimal(true);
QStringList result;
int posLines = 0;
QString htmlContent, pLine, line, line2, styleText, style, content;
if (regexHtmlContent.indexIn((text)) > -1) {
htmlContent = regexHtmlContent.cap();
while ((posLines = regexLines.indexIn(htmlContent, posLines)) != -1) {
pLine = regexLines.cap(1);
QStringList lines = pLine.split("
");
for (int i=0; i < lines.count(); i++) {
line = line2 = lines[i];
int posStyles = 0;
while ((posStyles = regexStyles.indexIn(line2, posStyles)) != -1) {
styleText = regexStyles.cap(1);
style = regexStyles.cap(2);
content = regexStyles.cap(3);
if (style.contains("font-weight:600;")) {
content.prepend('\x02');
content.append('\x02');
}
if (style.contains("font-style:italic;")) {
content.prepend('\x1d');
content.append('\x1d');
}
if (style.contains("text-decoration: underline;")) {
content.prepend('\x1f');
content.append('\x1f');
}
if (style.contains("color:#")) { // we have either foreground or background color or both
int posColors = 0;
QString mircFgColor, mircBgColor;
while ((posColors = regexColors.indexIn(style, posColors)) != -1) {
QString colorType = regexColors.cap(1);
QString color = regexColors.cap(2);
if (colorType == "color")
mircFgColor = _mircColorMap.key(color);
if (colorType == "background-color")
mircBgColor = _mircColorMap.key(color);
posColors += regexColors.matchedLength();
}
if (!mircBgColor.isEmpty())
content.prepend("," + mircBgColor);
// we need a fg color to be able to use a bg color
if (mircFgColor.isEmpty()) {
//FIXME try to use the current forecolor
mircFgColor = _mircColorMap.key(textColor().name());
if (mircFgColor.isEmpty())
mircFgColor = "01"; //use black if the current foreground color can't be converted
}
content.prepend(mircFgColor);
content.prepend('\x03');
content.append('\x03');
}
line.replace(styleText, content);
posStyles += regexStyles.matchedLength();
}
// get rid of all remaining html tags
QRegExp regexTags = QRegExp("<.*>",Qt::CaseInsensitive);
regexTags.setMinimal(true);
line.replace(regexTags, "");
line.replace("&","&");
line.replace("<","<");
line.replace(">",">");
line.replace(""","\"");
result << line;
}
posLines += regexLines.matchedLength();
}
}
return result.join("\n");
}
QString MultiLineEdit::convertMircCodesToHtml(const QString &text) {
QStringList words;
QRegExp mircCode = QRegExp("(|||)", Qt::CaseSensitive);
int posLeft = 0;
int posRight = 0;
for(;;) {
posRight = mircCode.indexIn(text, posLeft);
if(posRight < 0) {
words << text.mid(posLeft);
break; // no more mirc color codes
}
if (posLeft < posRight) {
words << text.mid(posLeft, posRight - posLeft);
posLeft = posRight;
}
posRight = text.indexOf(mircCode.cap(), posRight + 1);
words << text.mid(posLeft, posRight + 1 - posLeft);
posLeft = posRight + 1;
}
for (int i = 0; i < words.count(); i++) {
QString style;
if (words[i].contains('\x02')) {
style.append(" font-weight:600;");
words[i].replace('\x02',"");
}
if (words[i].contains('\x1d')) {
style.append(" font-style:italic;");
words[i].replace('\x1d',"");
}
if (words[i].contains('\x1f')) {
style.append(" text-decoration: underline;");
words[i].replace('\x1f',"");
}
if (words[i].contains('\x03')) {
int pos = words[i].indexOf('\x03');
int len = 3;
QString fg = words[i].mid(pos + 1,2);
QString bg;
if (words[i][pos+3] == ',')
bg = words[i].mid(pos+4,2);
style.append(" color:");
style.append(_mircColorMap[fg]);
style.append(";");
if (!bg.isEmpty()) {
style.append(" background-color:");
style.append(_mircColorMap[bg]);
style.append(";");
len = 6;
}
words[i].replace(pos, len, "");
words[i].replace('\x03',"");
}
words[i].replace("&","&");
words[i].replace("<", "<");
words[i].replace(">", ">");
words[i].replace("\"", """);
if (style.isEmpty()) {
words[i] = "" + words[i] + "";
}
else {
words[i] = "" + words[i] + "";
}
}
return words.join("").replace("\n","
");
}
void MultiLineEdit::on_returnPressed() {
on_returnPressed(convertHtmlToMircCodes(html()));
}
void MultiLineEdit::on_returnPressed(const QString & text) {
if(!text.isEmpty()) {
foreach(const QString &line, text.split('\n', QString::SkipEmptyParts)) {
if(line.isEmpty())
continue;
addToHistory(line);
emit textEntered(line);
}
reset();
tempHistory.clear();
} else {
emit noTextEntered();
}
}
void MultiLineEdit::on_textChanged() {
QString newText = text();
newText.replace("\r\n", "\n");
newText.replace('\r', '\n');
if(_mode == SingleLine) {
if(!pasteProtectionEnabled())
newText.replace('\n', ' ');
else if(newText.contains('\n')) {
QStringList lines = newText.split('\n', QString::SkipEmptyParts);
clear();
if(lines.count() >= 4) {
QString msg = tr("Do you really want to paste %n lines?", "", lines.count());
msg += "";
for(int i = 0; i < 4; i++) {
msg += Qt::escape(lines[i].left(40));
if(lines[i].count() > 40)
msg += "...";
msg += "
";
}
msg += "...
";
QMessageBox question(QMessageBox::NoIcon, tr("Paste Protection"), msg, QMessageBox::Yes|QMessageBox::No);
question.setDefaultButton(QMessageBox::No);
#ifdef Q_WS_MAC
question.setWindowFlags(question.windowFlags() | Qt::Sheet);
#endif
if(question.exec() != QMessageBox::Yes)
return;
}
foreach(QString line, lines) {
clear();
insert(line);
on_returnPressed();
}
}
}
_singleLine = (newText.indexOf('\n') < 0);
if(document()->size().height() != _lastDocumentHeight) {
_lastDocumentHeight = document()->size().height();
on_documentHeightChanged(_lastDocumentHeight);
}
updateSizeHint();
ensureCursorVisible();
}
void MultiLineEdit::on_documentHeightChanged(qreal) {
updateScrollBars();
}
void MultiLineEdit::reset() {
// every time the MultiLineEdit is cleared we also reset history index
idx = history.count();
clear();
QTextBlockFormat format = textCursor().blockFormat();
format.setLeftMargin(leftMargin); // we want a little space between the frame and the contents
textCursor().setBlockFormat(format);
updateScrollBars();
}
void MultiLineEdit::showHistoryEntry() {
// if the user changed the history, display the changed line
setHtml(convertMircCodesToHtml(tempHistory.contains(idx) ? tempHistory[idx] : history[idx]));
//setPlainText(tempHistory.contains(idx) ? tempHistory[idx] : history[idx]);
QTextCursor cursor = textCursor();
QTextBlockFormat format = cursor.blockFormat();
format.setLeftMargin(leftMargin); // we want a little space between the frame and the contents
cursor.setBlockFormat(format);
cursor.movePosition(QTextCursor::End);
setTextCursor(cursor);
updateScrollBars();
}