inputwidget.cpp | searchcode

/quassel-0.7.3/src/qtui/inputwidget.cpp

#
C++ | 553 lines | 425 code | 95 blank | 33 comment | 66 complexity | a82591094b9982e0d0af7e0d51afed6f MD5 | raw file
Possible License(s): GPL-2.0, GPL-3.0

/***************************************************************************
 *   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 "inputwidget.h"

#include "action.h"
#include "actioncollection.h"
#include "bufferview.h"
#include "client.h"
#include "iconloader.h"
#include "ircuser.h"
#include "networkmodel.h"
#include "qtui.h"
#include "qtuisettings.h"
#include "tabcompleter.h"
#include <QPainter>

const int leftMargin = 3;

InputWidget::InputWidget(QWidget *parent)
  : AbstractItemView(parent),
    _networkId(0)
{
  ui.setupUi(this);
  connect(ui.ownNick, SIGNAL(activated(QString)), this, SLOT(changeNick(QString)));

  layout()->setAlignment(ui.ownNick, Qt::AlignBottom);
  layout()->setAlignment(ui.inputEdit, Qt::AlignBottom);
  layout()->setAlignment(ui.showStyleButton, Qt::AlignBottom);
  layout()->setAlignment(ui.styleFrame, Qt::AlignBottom);

  ui.styleFrame->setVisible(false);

  setFocusProxy(ui.inputEdit);
  ui.ownNick->setFocusProxy(ui.inputEdit);

  ui.ownNick->setSizeAdjustPolicy(QComboBox::AdjustToContents);
  ui.ownNick->installEventFilter(new MouseWheelFilter(this));
  ui.inputEdit->installEventFilter(this);

  ui.inputEdit->setMinHeight(1);
  ui.inputEdit->setMaxHeight(5);
  ui.inputEdit->setMode(MultiLineEdit::MultiLine);
  ui.inputEdit->setPasteProtectionEnabled(true);

  ui.boldButton->setIcon(SmallIcon("format-text-bold"));
  ui.italicButton->setIcon(SmallIcon("format-text-italic"));
  ui.underlineButton->setIcon(SmallIcon("format-text-underline"));
  ui.textcolorButton->setIcon(SmallIcon("format-text-color"));
  ui.highlightcolorButton->setIcon(SmallIcon("format-fill-color"));

  _colorMenu = new QMenu();
  _colorFillMenu = new QMenu();

  QStringList names;
  names << tr("White") << tr("Black") << tr("Dark blue") << tr("Dark green") << tr("Red") << tr("Dark red") << tr("Dark magenta")  << tr("Orange")
  << tr("Yellow") << tr("Green") << tr("Dark cyan") << tr("Cyan") << tr("Blue") << tr("Magenta") << tr("Dark gray") << tr("Light gray");

  QPixmap pix(16, 16);
  for (int i = 0; i < inputLine()->mircColorMap().count(); i++) {
    pix.fill(inputLine()->mircColorMap().values()[i]);
    _colorMenu->addAction(pix, names[i])->setData(inputLine()->mircColorMap().keys()[i]);
    _colorFillMenu->addAction(pix, names[i])->setData(inputLine()->mircColorMap().keys()[i]);
  }

  pix.fill(Qt::transparent);
  _colorMenu->addAction(pix, tr("Clear Color"))->setData("");
  _colorFillMenu->addAction(pix, tr("Clear Color"))->setData("");

  ui.textcolorButton->setMenu(_colorMenu);
  connect(_colorMenu, SIGNAL(triggered(QAction*)), this, SLOT(colorChosen(QAction*)));
  ui.highlightcolorButton->setMenu(_colorFillMenu);
  connect(_colorFillMenu, SIGNAL(triggered(QAction*)), this, SLOT(colorHighlightChosen(QAction*)));

  new TabCompleter(ui.inputEdit);

  UiStyleSettings fs("Fonts");
  fs.notify("UseCustomInputWidgetFont", this, SLOT(setUseCustomFont(QVariant)));
  fs.notify("InputWidget", this, SLOT(setCustomFont(QVariant)));
  if(fs.value("UseCustomInputWidgetFont", false).toBool())
    setCustomFont(fs.value("InputWidget", QFont()));

  UiSettings s("InputWidget");

#ifdef HAVE_KDE
  s.notify("EnableSpellCheck", this, SLOT(setEnableSpellCheck(QVariant)));
  setEnableSpellCheck(s.value("EnableSpellCheck", false));
#endif

  s.notify("EnableEmacsMode", this, SLOT(setEnableEmacsMode(QVariant)));
  setEnableEmacsMode(s.value("EnableEmacsMode", false));

  s.notify("ShowNickSelector", this, SLOT(setShowNickSelector(QVariant)));
  setShowNickSelector(s.value("ShowNickSelector", true));

  s.notify("ShowStyleButtons", this, SLOT(setShowStyleButtons(QVariant)));
  setShowStyleButtons(s.value("ShowStyleButtons", true));

  s.notify("EnablePerChatHistory", this, SLOT(setEnablePerChatHistory(QVariant)));
  setEnablePerChatHistory(s.value("EnablePerChatHistory", false));

  s.notify("MaxNumLines", this, SLOT(setMaxLines(QVariant)));
  setMaxLines(s.value("MaxNumLines", 5));

  s.notify("EnableScrollBars", this, SLOT(setScrollBarsEnabled(QVariant)));
  setScrollBarsEnabled(s.value("EnableScrollBars", true));

  s.notify("EnableMultiLine", this, SLOT(setMultiLineEnabled(QVariant)));
  setMultiLineEnabled(s.value("EnableMultiLine", true));

  ActionCollection *coll = QtUi::actionCollection();

  Action *activateInputline = coll->add<Action>("FocusInputLine");
  connect(activateInputline, SIGNAL(triggered()), SLOT(setFocus()));
  activateInputline->setText(tr("Focus Input Line"));
  activateInputline->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_L));

  connect(inputLine(), SIGNAL(currentCharFormatChanged(QTextCharFormat)), this, SLOT(currentCharFormatChanged(QTextCharFormat)));
}

InputWidget::~InputWidget() {
}

void InputWidget::setUseCustomFont(const QVariant &v) {
  if(v.toBool()) {
    UiStyleSettings fs("Fonts");
    setCustomFont(fs.value("InputWidget"));
  } else
    setCustomFont(QFont());
}

void InputWidget::setCustomFont(const QVariant &v) {
  QFont font = v.value<QFont>();
  if(font.family().isEmpty())
    font = QApplication::font();
  // we don't want font styles as this conflics with mirc code richtext editing
  font.setBold(false);
  font.setItalic(false);
  font.setUnderline(false);
  font.setStrikeOut(false);
  ui.inputEdit->setCustomFont(font);
}

void InputWidget::setEnableSpellCheck(const QVariant &v) {
  ui.inputEdit->setSpellCheckEnabled(v.toBool());
}

void InputWidget::setEnableEmacsMode(const QVariant &v) {
  ui.inputEdit->setEmacsMode(v.toBool());
}

void InputWidget::setShowNickSelector(const QVariant &v) {
  ui.ownNick->setVisible(v.toBool());
}

void InputWidget::setShowStyleButtons(const QVariant &v) {
  ui.showStyleButton->setVisible(v.toBool());
}

void InputWidget::setEnablePerChatHistory(const QVariant &v) {
  _perChatHistory = v.toBool();
}

void InputWidget::setMaxLines(const QVariant &v) {
  ui.inputEdit->setMaxHeight(v.toInt());
}

void InputWidget::setScrollBarsEnabled(const QVariant &v) {
  ui.inputEdit->setScrollBarsEnabled(v.toBool());
}

void InputWidget::setMultiLineEnabled(const QVariant &v) {
  ui.inputEdit->setMode(v.toBool()? MultiLineEdit::MultiLine : MultiLineEdit::SingleLine);
}

bool InputWidget::eventFilter(QObject *watched, QEvent *event) {
  if(event->type() != QEvent::KeyPress)
    return false;

  QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);

  // keys from BufferView should be sent to (and focus) the input line
  BufferView *view = qobject_cast<BufferView *>(watched);
  if(view) {
    if(keyEvent->text().length() == 1 && !(keyEvent->modifiers() & (Qt::ControlModifier ^ Qt::AltModifier)) ) { // normal key press
      QChar c = keyEvent->text().at(0);
      if(c.isLetterOrNumber() || c.isSpace() || c.isPunct() || c.isSymbol()) {
        setFocus();
        QCoreApplication::sendEvent(inputLine(), keyEvent);
        return true;
      }
    }
    return false;
  } else if(watched == ui.inputEdit) {
    if(keyEvent->matches(QKeySequence::Find)) {
      QAction *act = GraphicalUi::actionCollection()->action("ToggleSearchBar");
      if(act) {
        act->toggle();
        return true;
      }
    }
    return false;
  }
  return false;
}

void InputWidget::currentChanged(const QModelIndex &current, const QModelIndex &previous) {
  BufferId currentBufferId = current.data(NetworkModel::BufferIdRole).value<BufferId>();
  BufferId previousBufferId = previous.data(NetworkModel::BufferIdRole).value<BufferId>();

  if (_perChatHistory) {
    //backup
    historyMap[previousBufferId].history = inputLine()->history();
    historyMap[previousBufferId].tempHistory = inputLine()->tempHistory();
    historyMap[previousBufferId].idx = inputLine()->idx();
    historyMap[previousBufferId].inputLine = inputLine()->html();

    //restore
    inputLine()->setHistory(historyMap[currentBufferId].history);
    inputLine()->setTempHistory(historyMap[currentBufferId].tempHistory);
    inputLine()->setIdx(historyMap[currentBufferId].idx);
    inputLine()->setHtml(historyMap[currentBufferId].inputLine);
    inputLine()->moveCursor(QTextCursor::End,QTextCursor::MoveAnchor);

    // FIXME this really should be in MultiLineEdit (and the const int on top removed)
    QTextBlockFormat format = inputLine()->textCursor().blockFormat();
    format.setLeftMargin(leftMargin); // we want a little space between the frame and the contents
    inputLine()->textCursor().setBlockFormat(format);
  }

  NetworkId networkId = current.data(NetworkModel::NetworkIdRole).value<NetworkId>();
  if(networkId == _networkId)
    return;

  setNetwork(networkId);
  updateNickSelector();
  updateEnabledState();
}

void InputWidget::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight) {
  QItemSelectionRange changedArea(topLeft, bottomRight);
  if(changedArea.contains(selectionModel()->currentIndex())) {
    updateEnabledState();
  }
};

void InputWidget::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) {
  NetworkId networkId;
  QModelIndex child;
  for(int row = start; row <= end; row++) {
    child = model()->index(row, 0, parent);
    if(NetworkModel::NetworkItemType != child.data(NetworkModel::ItemTypeRole).toInt())
      continue;
    networkId = child.data(NetworkModel::NetworkIdRole).value<NetworkId>();
    if(networkId == _networkId) {
      setNetwork(0);
      updateNickSelector();
      return;
    }
  }
}


void InputWidget::updateEnabledState() {
// FIXME: Find a visualization for this that does not disable the widget!
//        Disabling kills global action shortcuts, plus users sometimes need/want to enter text
//        even in inactive channels.
#if 0
  QModelIndex currentIndex = selectionModel()->currentIndex();

  const Network *net = Client::networkModel()->networkByIndex(currentIndex);
  bool enabled = false;
  if(net) {
    // disable inputline if it's a channelbuffer we parted from or...
    enabled = (currentIndex.data(NetworkModel::ItemActiveRole).value<bool>() || (currentIndex.data(NetworkModel::BufferTypeRole).toInt() != BufferInfo::ChannelBuffer));
    // ... if we're not connected to the network at all
    enabled &= net->isConnected();
  }

  ui.inputEdit->setEnabled(enabled);
#endif
}

const Network *InputWidget::currentNetwork() const {
  return Client::network(_networkId);
}

BufferInfo InputWidget::currentBufferInfo() const {
  return selectionModel()->currentIndex().data(NetworkModel::BufferInfoRole).value<BufferInfo>();
};

void InputWidget::setNetwork(NetworkId networkId) {
  if(_networkId == networkId)
    return;

  const Network *previousNet = Client::network(_networkId);
  if(previousNet) {
    disconnect(previousNet, 0, this, 0);
    if(previousNet->me())
      disconnect(previousNet->me(), 0, this, 0);
  }

  _networkId = networkId;

  const Network *network = Client::network(networkId);
  if(network) {
    connect(network, SIGNAL(identitySet(IdentityId)), this, SLOT(setIdentity(IdentityId)));
    connectMyIrcUser();
    setIdentity(network->identity());
  } else {
    setIdentity(0);
    _networkId = 0;
  }
}

void InputWidget::connectMyIrcUser() {
  const Network *network = currentNetwork();
  if(network->me()) {
    connect(network->me(), SIGNAL(nickSet(const QString &)), this, SLOT(updateNickSelector()));
    connect(network->me(), SIGNAL(userModesSet(QString)), this, SLOT(updateNickSelector()));
    connect(network->me(), SIGNAL(userModesAdded(QString)), this, SLOT(updateNickSelector()));
    connect(network->me(), SIGNAL(userModesRemoved(QString)), this, SLOT(updateNickSelector()));
    connect(network->me(), SIGNAL(awaySet(bool)), this, SLOT(updateNickSelector()));
    disconnect(network, SIGNAL(myNickSet(const QString &)), this, SLOT(connectMyIrcUser()));
    updateNickSelector();
  } else {
    connect(network, SIGNAL(myNickSet(const QString &)), this, SLOT(connectMyIrcUser()));
  }
}

void InputWidget::setIdentity(IdentityId identityId) {
  if(_identityId == identityId)
    return;

  const Identity *previousIdentity = Client::identity(_identityId);
  if(previousIdentity)
    disconnect(previousIdentity, 0, this, 0);

  _identityId = identityId;

  const Identity *identity = Client::identity(identityId);
  if(identity) {
    connect(identity, SIGNAL(nicksSet(QStringList)), this, SLOT(updateNickSelector()));
  } else {
    _identityId = 0;
  }
  updateNickSelector();
}

void InputWidget::updateNickSelector() const {
  ui.ownNick->clear();

  const Network *net = currentNetwork();
  if(!net)
    return;

  const Identity *identity = Client::identity(net->identity());
  if(!identity) {
    qWarning() << "InputWidget::updateNickSelector(): can't find Identity for Network" << net->networkId() << "IdentityId:" << net->identity();
    return;
  }

  int nickIdx;
  QStringList nicks = identity->nicks();
  if((nickIdx = nicks.indexOf(net->myNick())) == -1) {
    nicks.prepend(net->myNick());
    nickIdx = 0;
  }

  if(nicks.isEmpty())
    return;

  IrcUser *me = net->me();
  if(me) {
    nicks[nickIdx] = net->myNick();
    if(!me->userModes().isEmpty())
      nicks[nickIdx] += QString(" (+%1)").arg(me->userModes());
  }

  ui.ownNick->addItems(nicks);

  if(me && me->isAway())
    ui.ownNick->setItemData(nickIdx, SmallIcon("user-away"), Qt::DecorationRole);

  ui.ownNick->setCurrentIndex(nickIdx);
}

void InputWidget::changeNick(const QString &newNick) const {
  const Network *net = currentNetwork();
  if(!net || net->isMyNick(newNick))
    return;

  // we reset the nick selecter as we have no confirmation yet, that this will succeed.
  // if the action succeeds it will be properly updated anyways.
  updateNickSelector();
  Client::userInput(BufferInfo::fakeStatusBuffer(net->networkId()), QString("/NICK %1").arg(newNick));
}

void InputWidget::on_inputEdit_textEntered(const QString &text) {
  Client::userInput(currentBufferInfo(), text);
  ui.boldButton->setChecked(false);
  ui.underlineButton->setChecked(false);
  ui.italicButton->setChecked(false);

  QTextCharFormat fmt;
  fmt.setFontWeight(QFont::Normal);
  fmt.setFontUnderline(false);
  fmt.setFontItalic(false);
  fmt.clearForeground();
  fmt.clearBackground();
  inputLine()->setCurrentCharFormat(fmt);

#ifdef HAVE_KDE
  // Set highlighter back to active in case it was deactivated by too many errors.
  if(ui.inputEdit->highlighter())
    ui.inputEdit->highlighter()->setActive(true);
#endif
}

void InputWidget::mergeFormatOnSelection(const QTextCharFormat &format) {
  QTextCursor cursor = inputLine()->textCursor();
  cursor.mergeCharFormat(format);
  inputLine()->mergeCurrentCharFormat(format);
}

void InputWidget::setFormatOnSelection(const QTextCharFormat &format) {
  QTextCursor cursor = inputLine()->textCursor();
  cursor.setCharFormat(format);
  inputLine()->setCurrentCharFormat(format);
}

QTextCharFormat InputWidget::getFormatOfWordOrSelection() {
  QTextCursor cursor = inputLine()->textCursor();
  return cursor.charFormat();
}

void InputWidget::currentCharFormatChanged(const QTextCharFormat &format) {
  fontChanged(format.font());
}

void InputWidget::on_boldButton_clicked(bool checked) {
  QTextCharFormat fmt;
  fmt.setFontWeight(checked ? QFont::Bold : QFont::Normal);
  mergeFormatOnSelection(fmt);
}

void InputWidget::on_underlineButton_clicked(bool checked) {
  QTextCharFormat fmt;
  fmt.setFontUnderline(checked);
  mergeFormatOnSelection(fmt);
}

void InputWidget::on_italicButton_clicked(bool checked) {
  QTextCharFormat fmt;
  fmt.setFontItalic(checked);
  mergeFormatOnSelection(fmt);
}

void InputWidget::fontChanged(const QFont &f)
{
  ui.boldButton->setChecked(f.bold());
  ui.italicButton->setChecked(f.italic());
  ui.underlineButton->setChecked(f.underline());
}

void InputWidget::colorChosen(QAction *action) {
  QTextCharFormat fmt;
  QColor color;
  if (qVariantValue<QString>(action->data()) == "") {
    color = Qt::transparent;
    fmt = getFormatOfWordOrSelection();
    fmt.clearForeground();
    setFormatOnSelection(fmt);
  }
  else {
    color = QColor(inputLine()->rgbColorFromMirc(qVariantValue<QString>(action->data())));
    fmt.setForeground(color);
    mergeFormatOnSelection(fmt);
  }
  ui.textcolorButton->setDefaultAction(action);
  ui.textcolorButton->setIcon(createColorToolButtonIcon(SmallIcon("format-text-color"), color));
}

void InputWidget::colorHighlightChosen(QAction *action) {
  QTextCharFormat fmt;
  QColor color;
  if (qVariantValue<QString>(action->data()) == "") {
    color = Qt::transparent;
    fmt = getFormatOfWordOrSelection();
    fmt.clearBackground();
    setFormatOnSelection(fmt);
  }
  else {
    color = QColor(inputLine()->rgbColorFromMirc(qVariantValue<QString>(action->data())));
    fmt.setBackground(color);
    mergeFormatOnSelection(fmt);
  }
  ui.highlightcolorButton->setDefaultAction(action);
  ui.highlightcolorButton->setIcon(createColorToolButtonIcon(SmallIcon("format-fill-color"), color));
}

void InputWidget::on_showStyleButton_toggled(bool checked) {
  ui.styleFrame->setVisible(checked);
  if (checked) {
    ui.showStyleButton->setArrowType(Qt::LeftArrow);
  }
  else {
    ui.showStyleButton->setArrowType(Qt::RightArrow);
  }
}

QIcon InputWidget::createColorToolButtonIcon(const QIcon &icon, const QColor &color) {
  QPixmap pixmap(16, 16);
  pixmap.fill(Qt::transparent);
  QPainter painter(&pixmap);
  QPixmap image = icon.pixmap(16,16);
  QRect target(0, 0, 16, 14);
  QRect source(0, 0, 16, 14);
  painter.fillRect(QRect(0, 14, 16, 16), color);
  painter.drawPixmap(target, image, source);

  return QIcon(pixmap);
}

// MOUSE WHEEL FILTER
MouseWheelFilter::MouseWheelFilter(QObject *parent)
  : QObject(parent)
{
}

bool MouseWheelFilter::eventFilter(QObject *obj, QEvent *event) {
  if(event->type() != QEvent::Wheel)
    return QObject::eventFilter(obj, event);
  else
    return true;
}