src/qtui/inputwidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2014 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
   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) version 3.                                           *
   9  *                                                                         *
  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.                          *
  14  *                                                                         *
  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  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  19  ***************************************************************************/
  20
  21 #include "inputwidget.h"
  22
  23 #include "action.h"
  24 #include "actioncollection.h"
  25 #include "bufferview.h"
  26 #include "client.h"
  27 #include "iconloader.h"
  28 #include "ircuser.h"
  29 #include "networkmodel.h"
  30 #include "qtui.h"
  31 #include "qtuisettings.h"
  32 #include "tabcompleter.h"
  33 #include <QPainter>
  34
  35 const int leftMargin = 3;
  36
  37 InputWidget::InputWidget(QWidget *parent)
  38     : AbstractItemView(parent),
  39     _networkId(0)
  40 {
  41     ui.setupUi(this);
  42     connect(ui.ownNick, SIGNAL(activated(QString)), this, SLOT(changeNick(QString)));
  43
  44     layout()->setAlignment(ui.ownNick, Qt::AlignBottom);
  45     layout()->setAlignment(ui.inputEdit, Qt::AlignBottom);
  46     layout()->setAlignment(ui.showStyleButton, Qt::AlignBottom);
  47     layout()->setAlignment(ui.styleFrame, Qt::AlignBottom);
  48
  49     ui.styleFrame->setVisible(false);
  50
  51     setFocusProxy(ui.inputEdit);
  52     ui.ownNick->setFocusProxy(ui.inputEdit);
  53
  54     ui.ownNick->setSizeAdjustPolicy(QComboBox::AdjustToContents);
  55     ui.ownNick->installEventFilter(new MouseWheelFilter(this));
  56     ui.inputEdit->installEventFilter(this);
  57
  58     ui.inputEdit->setMinHeight(1);
  59     ui.inputEdit->setMaxHeight(5);
  60     ui.inputEdit->setMode(MultiLineEdit::MultiLine);
  61     ui.inputEdit->setPasteProtectionEnabled(true);
  62
  63     ui.boldButton->setIcon(SmallIcon("format-text-bold"));
  64     ui.italicButton->setIcon(SmallIcon("format-text-italic"));
  65     ui.underlineButton->setIcon(SmallIcon("format-text-underline"));
  66     ui.textcolorButton->setIcon(SmallIcon("format-text-color"));
  67     ui.highlightcolorButton->setIcon(SmallIcon("format-fill-color"));
  68     ui.encryptionIconLabel->hide();
  69
  70     _colorMenu = new QMenu();
  71     _colorFillMenu = new QMenu();
  72
  73     QStringList names;
  74     names << tr("White") << tr("Black") << tr("Dark blue") << tr("Dark green") << tr("Red") << tr("Dark red") << tr("Dark magenta")  << tr("Orange")
  75           << tr("Yellow") << tr("Green") << tr("Dark cyan") << tr("Cyan") << tr("Blue") << tr("Magenta") << tr("Dark gray") << tr("Light gray");
  76
  77     QPixmap pix(16, 16);
  78     for (int i = 0; i < inputLine()->mircColorMap().count(); i++) {
  79         pix.fill(inputLine()->mircColorMap().values()[i]);
  80         _colorMenu->addAction(pix, names[i])->setData(inputLine()->mircColorMap().keys()[i]);
  81         _colorFillMenu->addAction(pix, names[i])->setData(inputLine()->mircColorMap().keys()[i]);
  82     }
  83
  84     pix.fill(Qt::transparent);
  85     _colorMenu->addAction(pix, tr("Clear Color"))->setData("");
  86     _colorFillMenu->addAction(pix, tr("Clear Color"))->setData("");
  87
  88     ui.textcolorButton->setMenu(_colorMenu);
  89     connect(_colorMenu, SIGNAL(triggered(QAction *)), this, SLOT(colorChosen(QAction *)));
  90     ui.highlightcolorButton->setMenu(_colorFillMenu);
  91     connect(_colorFillMenu, SIGNAL(triggered(QAction *)), this, SLOT(colorHighlightChosen(QAction *)));
  92
  93     new TabCompleter(ui.inputEdit);
  94
  95     UiStyleSettings fs("Fonts");
  96     fs.notify("UseCustomInputWidgetFont", this, SLOT(setUseCustomFont(QVariant)));
  97     fs.notify("InputWidget", this, SLOT(setCustomFont(QVariant)));
  98     if (fs.value("UseCustomInputWidgetFont", false).toBool())
  99         setCustomFont(fs.value("InputWidget", QFont()));
 100
 101     UiSettings s("InputWidget");
 102
 103 #ifdef HAVE_KDE
 104     s.notify("EnableSpellCheck", this, SLOT(setEnableSpellCheck(QVariant)));
 105     setEnableSpellCheck(s.value("EnableSpellCheck", false));
 106 #endif
 107
 108     s.notify("EnableEmacsMode", this, SLOT(setEnableEmacsMode(QVariant)));
 109     setEnableEmacsMode(s.value("EnableEmacsMode", false));
 110
 111     s.notify("ShowNickSelector", this, SLOT(setShowNickSelector(QVariant)));
 112     setShowNickSelector(s.value("ShowNickSelector", true));
 113
 114     s.notify("ShowStyleButtons", this, SLOT(setShowStyleButtons(QVariant)));
 115     setShowStyleButtons(s.value("ShowStyleButtons", true));
 116
 117     s.notify("EnablePerChatHistory", this, SLOT(setEnablePerChatHistory(QVariant)));
 118     setEnablePerChatHistory(s.value("EnablePerChatHistory", false));
 119
 120     s.notify("MaxNumLines", this, SLOT(setMaxLines(QVariant)));
 121     setMaxLines(s.value("MaxNumLines", 5));
 122
 123     s.notify("EnableScrollBars", this, SLOT(setScrollBarsEnabled(QVariant)));
 124     setScrollBarsEnabled(s.value("EnableScrollBars", true));
 125
 126     s.notify("EnableMultiLine", this, SLOT(setMultiLineEnabled(QVariant)));
 127     setMultiLineEnabled(s.value("EnableMultiLine", true));
 128
 129     ActionCollection *coll = QtUi::actionCollection();
 130
 131     Action *activateInputline = coll->add<Action>("FocusInputLine");
 132     connect(activateInputline, SIGNAL(triggered()), SLOT(setFocus()));
 133     activateInputline->setText(tr("Focus Input Line"));
 134     activateInputline->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_L));
 135
 136     connect(inputLine(), SIGNAL(textEntered(QString)), SLOT(onTextEntered(QString)), Qt::QueuedConnection); // make sure the line is already reset, bug #984
 137     connect(inputLine(), SIGNAL(currentCharFormatChanged(QTextCharFormat)), this, SLOT(currentCharFormatChanged(QTextCharFormat)));
 138 }
 139
 140
 141 InputWidget::~InputWidget()
 142 {
 143 }
 144
 145
 146 void InputWidget::setUseCustomFont(const QVariant &v)
 147 {
 148     if (v.toBool()) {
 149         UiStyleSettings fs("Fonts");
 150         setCustomFont(fs.value("InputWidget"));
 151     }
 152     else
 153         setCustomFont(QFont());
 154 }
 155
 156
 157 void InputWidget::setCustomFont(const QVariant &v)
 158 {
 159     QFont font = v.value<QFont>();
 160     if (font.family().isEmpty())
 161         font = QApplication::font();
 162     // we don't want font styles as this conflics with mirc code richtext editing
 163     font.setBold(false);
 164     font.setItalic(false);
 165     font.setUnderline(false);
 166     font.setStrikeOut(false);
 167     ui.inputEdit->setCustomFont(font);
 168 }
 169
 170
 171 void InputWidget::setEnableSpellCheck(const QVariant &v)
 172 {
 173     ui.inputEdit->setSpellCheckEnabled(v.toBool());
 174 }
 175
 176
 177 void InputWidget::setEnableEmacsMode(const QVariant &v)
 178 {
 179     ui.inputEdit->setEmacsMode(v.toBool());
 180 }
 181
 182
 183 void InputWidget::setShowNickSelector(const QVariant &v)
 184 {
 185     ui.ownNick->setVisible(v.toBool());
 186 }
 187
 188
 189 void InputWidget::setShowStyleButtons(const QVariant &v)
 190 {
 191     ui.showStyleButton->setVisible(v.toBool());
 192 }
 193
 194
 195 void InputWidget::setEnablePerChatHistory(const QVariant &v)
 196 {
 197     _perChatHistory = v.toBool();
 198 }
 199
 200
 201 void InputWidget::setMaxLines(const QVariant &v)
 202 {
 203     ui.inputEdit->setMaxHeight(v.toInt());
 204 }
 205
 206
 207 void InputWidget::setScrollBarsEnabled(const QVariant &v)
 208 {
 209     ui.inputEdit->setScrollBarsEnabled(v.toBool());
 210 }
 211
 212
 213 void InputWidget::setMultiLineEnabled(const QVariant &v)
 214 {
 215     ui.inputEdit->setMode(v.toBool() ? MultiLineEdit::MultiLine : MultiLineEdit::SingleLine);
 216 }
 217
 218
 219 bool InputWidget::eventFilter(QObject *watched, QEvent *event)
 220 {
 221     if (event->type() != QEvent::KeyPress)
 222         return false;
 223
 224     QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
 225
 226     // keys from BufferView should be sent to (and focus) the input line
 227     BufferView *view = qobject_cast<BufferView *>(watched);
 228     if (view) {
 229         if (keyEvent->text().length() == 1 && !(keyEvent->modifiers() & (Qt::ControlModifier ^ Qt::AltModifier))) { // normal key press
 230             QChar c = keyEvent->text().at(0);
 231             if (c.isLetterOrNumber() || c.isSpace() || c.isPunct() || c.isSymbol()) {
 232                 setFocus();
 233                 QCoreApplication::sendEvent(inputLine(), keyEvent);
 234                 return true;
 235             }
 236         }
 237         return false;
 238     }
 239     else if (watched == ui.inputEdit) {
 240         if (keyEvent->matches(QKeySequence::Find)) {
 241             QAction *act = GraphicalUi::actionCollection()->action("ToggleSearchBar");
 242             if (act) {
 243                 act->toggle();
 244                 return true;
 245             }
 246         }
 247         return false;
 248     }
 249     return false;
 250 }
 251
 252
 253 void InputWidget::currentChanged(const QModelIndex &current, const QModelIndex &previous)
 254 {
 255     BufferId currentBufferId = current.data(NetworkModel::BufferIdRole).value<BufferId>();
 256     BufferId previousBufferId = previous.data(NetworkModel::BufferIdRole).value<BufferId>();
 257
 258     if (_perChatHistory) {
 259         //backup
 260         historyMap[previousBufferId].history = inputLine()->history();
 261         historyMap[previousBufferId].tempHistory = inputLine()->tempHistory();
 262         historyMap[previousBufferId].idx = inputLine()->idx();
 263         historyMap[previousBufferId].inputLine = inputLine()->html();
 264
 265         //restore
 266         inputLine()->setHistory(historyMap[currentBufferId].history);
 267         inputLine()->setTempHistory(historyMap[currentBufferId].tempHistory);
 268         inputLine()->setIdx(historyMap[currentBufferId].idx);
 269         inputLine()->setHtml(historyMap[currentBufferId].inputLine);
 270         inputLine()->moveCursor(QTextCursor::End, QTextCursor::MoveAnchor);
 271
 272         // FIXME this really should be in MultiLineEdit (and the const int on top removed)
 273         QTextBlockFormat format = inputLine()->textCursor().blockFormat();
 274         format.setLeftMargin(leftMargin); // we want a little space between the frame and the contents
 275         inputLine()->textCursor().setBlockFormat(format);
 276     }
 277
 278     NetworkId networkId = current.data(NetworkModel::NetworkIdRole).value<NetworkId>();
 279     if (networkId == _networkId)
 280         return;
 281
 282     setNetwork(networkId);
 283     updateNickSelector();
 284     updateEnabledState();
 285 }
 286
 287
 288 void InputWidget::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
 289 {
 290     QItemSelectionRange changedArea(topLeft, bottomRight);
 291     if (changedArea.contains(selectionModel()->currentIndex())) {
 292         updateEnabledState();
 293
 294         bool encrypted = false;
 295
 296         IrcChannel *chan = qobject_cast<IrcChannel *>(Client::bufferModel()->data(selectionModel()->currentIndex(), NetworkModel::IrcChannelRole).value<QObject *>());
 297         if (chan)
 298             encrypted = chan->encrypted();
 299
 300         IrcUser *user = qobject_cast<IrcUser *>(Client::bufferModel()->data(selectionModel()->currentIndex(), NetworkModel::IrcUserRole).value<QObject *>());
 301         if (user)
 302             encrypted = user->encrypted();
 303
 304         if (encrypted)
 305             ui.encryptionIconLabel->show();
 306         else
 307             ui.encryptionIconLabel->hide();
 308     }
 309 }
 310
 311
 312 void InputWidget::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
 313 {
 314     NetworkId networkId;
 315     QModelIndex child;
 316     for (int row = start; row <= end; row++) {
 317         child = model()->index(row, 0, parent);
 318         if (NetworkModel::NetworkItemType != child.data(NetworkModel::ItemTypeRole).toInt())
 319             continue;
 320         networkId = child.data(NetworkModel::NetworkIdRole).value<NetworkId>();
 321         if (networkId == _networkId) {
 322             setNetwork(0);
 323             updateNickSelector();
 324             return;
 325         }
 326     }
 327 }
 328
 329
 330 void InputWidget::updateEnabledState()
 331 {
 332 // FIXME: Find a visualization for this that does not disable the widget!
 333 //        Disabling kills global action shortcuts, plus users sometimes need/want to enter text
 334 //        even in inactive channels.
 335 #if 0
 336     QModelIndex currentIndex = selectionModel()->currentIndex();
 337
 338     const Network *net = Client::networkModel()->networkByIndex(currentIndex);
 339     bool enabled = false;
 340     if (net) {
 341         // disable inputline if it's a channelbuffer we parted from or...
 342         enabled = (currentIndex.data(NetworkModel::ItemActiveRole).value<bool>() || (currentIndex.data(NetworkModel::BufferTypeRole).toInt() != BufferInfo::ChannelBuffer));
 343         // ... if we're not connected to the network at all
 344         enabled &= net->isConnected();
 345     }
 346
 347     ui.inputEdit->setEnabled(enabled);
 348 #endif
 349 }
 350
 351
 352 const Network *InputWidget::currentNetwork() const
 353 {
 354     return Client::network(_networkId);
 355 }
 356
 357
 358 BufferInfo InputWidget::currentBufferInfo() const
 359 {
 360     return selectionModel()->currentIndex().data(NetworkModel::BufferInfoRole).value<BufferInfo>();
 361 };
 362
 363 void InputWidget::setNetwork(NetworkId networkId)
 364 {
 365     if (_networkId == networkId)
 366         return;
 367
 368     const Network *previousNet = Client::network(_networkId);
 369     if (previousNet) {
 370         disconnect(previousNet, 0, this, 0);
 371         if (previousNet->me())
 372             disconnect(previousNet->me(), 0, this, 0);
 373     }
 374
 375     _networkId = networkId;
 376
 377     const Network *network = Client::network(networkId);
 378     if (network) {
 379         connect(network, SIGNAL(identitySet(IdentityId)), this, SLOT(setIdentity(IdentityId)));
 380         connectMyIrcUser();
 381         setIdentity(network->identity());
 382     }
 383     else {
 384         setIdentity(0);
 385         _networkId = 0;
 386     }
 387 }
 388
 389
 390 void InputWidget::connectMyIrcUser()
 391 {
 392     const Network *network = currentNetwork();
 393     if (network->me()) {
 394         connect(network->me(), SIGNAL(nickSet(const QString &)), this, SLOT(updateNickSelector()));
 395         connect(network->me(), SIGNAL(userModesSet(QString)), this, SLOT(updateNickSelector()));
 396         connect(network->me(), SIGNAL(userModesAdded(QString)), this, SLOT(updateNickSelector()));
 397         connect(network->me(), SIGNAL(userModesRemoved(QString)), this, SLOT(updateNickSelector()));
 398         connect(network->me(), SIGNAL(awaySet(bool)), this, SLOT(updateNickSelector()));
 399         disconnect(network, SIGNAL(myNickSet(const QString &)), this, SLOT(connectMyIrcUser()));
 400         updateNickSelector();
 401     }
 402     else {
 403         connect(network, SIGNAL(myNickSet(const QString &)), this, SLOT(connectMyIrcUser()));
 404     }
 405 }
 406
 407
 408 void InputWidget::setIdentity(IdentityId identityId)
 409 {
 410     if (_identityId == identityId)
 411         return;
 412
 413     const Identity *previousIdentity = Client::identity(_identityId);
 414     if (previousIdentity)
 415         disconnect(previousIdentity, 0, this, 0);
 416
 417     _identityId = identityId;
 418
 419     const Identity *identity = Client::identity(identityId);
 420     if (identity) {
 421         connect(identity, SIGNAL(nicksSet(QStringList)), this, SLOT(updateNickSelector()));
 422     }
 423     else {
 424         _identityId = 0;
 425     }
 426     updateNickSelector();
 427 }
 428
 429
 430 void InputWidget::updateNickSelector() const
 431 {
 432     ui.ownNick->clear();
 433
 434     const Network *net = currentNetwork();
 435     if (!net)
 436         return;
 437
 438     const Identity *identity = Client::identity(net->identity());
 439     if (!identity) {
 440         qWarning() << "InputWidget::updateNickSelector(): can't find Identity for Network" << net->networkId() << "IdentityId:" << net->identity();
 441         return;
 442     }
 443
 444     int nickIdx;
 445     QStringList nicks = identity->nicks();
 446     if ((nickIdx = nicks.indexOf(net->myNick())) == -1) {
 447         nicks.prepend(net->myNick());
 448         nickIdx = 0;
 449     }
 450
 451     if (nicks.isEmpty())
 452         return;
 453
 454     IrcUser *me = net->me();
 455     if (me) {
 456         nicks[nickIdx] = net->myNick();
 457         if (!me->userModes().isEmpty())
 458             nicks[nickIdx] += QString(" (+%1)").arg(me->userModes());
 459     }
 460
 461     ui.ownNick->addItems(nicks);
 462
 463     if (me && me->isAway())
 464         ui.ownNick->setItemData(nickIdx, SmallIcon("user-away"), Qt::DecorationRole);
 465
 466     ui.ownNick->setCurrentIndex(nickIdx);
 467 }
 468
 469
 470 void InputWidget::changeNick(const QString &newNick) const
 471 {
 472     const Network *net = currentNetwork();
 473     if (!net || net->isMyNick(newNick))
 474         return;
 475
 476     // we reset the nick selecter as we have no confirmation yet, that this will succeed.
 477     // if the action succeeds it will be properly updated anyways.
 478     updateNickSelector();
 479     Client::userInput(BufferInfo::fakeStatusBuffer(net->networkId()), QString("/NICK %1").arg(newNick));
 480 }
 481
 482
 483 void InputWidget::onTextEntered(const QString &text)
 484 {
 485     Client::userInput(currentBufferInfo(), text);
 486     ui.boldButton->setChecked(false);
 487     ui.underlineButton->setChecked(false);
 488     ui.italicButton->setChecked(false);
 489
 490     QTextCharFormat fmt;
 491     fmt.setFontWeight(QFont::Normal);
 492     fmt.setFontUnderline(false);
 493     fmt.setFontItalic(false);
 494     fmt.clearForeground();
 495     fmt.clearBackground();
 496     inputLine()->setCurrentCharFormat(fmt);
 497
 498 #ifdef HAVE_KDE
 499     // Set highlighter back to active in case it was deactivated by too many errors.
 500     if (ui.inputEdit->highlighter())
 501         ui.inputEdit->highlighter()->setActive(true);
 502 #endif
 503 }
 504
 505
 506 void InputWidget::mergeFormatOnSelection(const QTextCharFormat &format)
 507 {
 508     QTextCursor cursor = inputLine()->textCursor();
 509     cursor.mergeCharFormat(format);
 510     inputLine()->mergeCurrentCharFormat(format);
 511 }
 512
 513
 514 void InputWidget::setFormatOnSelection(const QTextCharFormat &format)
 515 {
 516     QTextCursor cursor = inputLine()->textCursor();
 517     cursor.setCharFormat(format);
 518     inputLine()->setCurrentCharFormat(format);
 519 }
 520
 521
 522 QTextCharFormat InputWidget::getFormatOfWordOrSelection()
 523 {
 524     QTextCursor cursor = inputLine()->textCursor();
 525     return cursor.charFormat();
 526 }
 527
 528
 529 void InputWidget::currentCharFormatChanged(const QTextCharFormat &format)
 530 {
 531     fontChanged(format.font());
 532 }
 533
 534
 535 void InputWidget::on_boldButton_clicked(bool checked)
 536 {
 537     QTextCharFormat fmt;
 538     fmt.setFontWeight(checked ? QFont::Bold : QFont::Normal);
 539     mergeFormatOnSelection(fmt);
 540 }
 541
 542
 543 void InputWidget::on_underlineButton_clicked(bool checked)
 544 {
 545     QTextCharFormat fmt;
 546     fmt.setFontUnderline(checked);
 547     mergeFormatOnSelection(fmt);
 548 }
 549
 550
 551 void InputWidget::on_italicButton_clicked(bool checked)
 552 {
 553     QTextCharFormat fmt;
 554     fmt.setFontItalic(checked);
 555     mergeFormatOnSelection(fmt);
 556 }
 557
 558
 559 void InputWidget::fontChanged(const QFont &f)
 560 {
 561     ui.boldButton->setChecked(f.bold());
 562     ui.italicButton->setChecked(f.italic());
 563     ui.underlineButton->setChecked(f.underline());
 564 }
 565
 566
 567 void InputWidget::colorChosen(QAction *action)
 568 {
 569     QTextCharFormat fmt;
 570     QColor color;
 571     if (qVariantValue<QString>(action->data()) == "") {
 572         color = Qt::transparent;
 573         fmt = getFormatOfWordOrSelection();
 574         fmt.clearForeground();
 575         setFormatOnSelection(fmt);
 576     }
 577     else {
 578         color = QColor(inputLine()->rgbColorFromMirc(qVariantValue<QString>(action->data())));
 579         fmt.setForeground(color);
 580         mergeFormatOnSelection(fmt);
 581     }
 582     ui.textcolorButton->setDefaultAction(action);
 583     ui.textcolorButton->setIcon(createColorToolButtonIcon(SmallIcon("format-text-color"), color));
 584 }
 585
 586
 587 void InputWidget::colorHighlightChosen(QAction *action)
 588 {
 589     QTextCharFormat fmt;
 590     QColor color;
 591     if (qVariantValue<QString>(action->data()) == "") {
 592         color = Qt::transparent;
 593         fmt = getFormatOfWordOrSelection();
 594         fmt.clearBackground();
 595         setFormatOnSelection(fmt);
 596     }
 597     else {
 598         color = QColor(inputLine()->rgbColorFromMirc(qVariantValue<QString>(action->data())));
 599         fmt.setBackground(color);
 600         mergeFormatOnSelection(fmt);
 601     }
 602     ui.highlightcolorButton->setDefaultAction(action);
 603     ui.highlightcolorButton->setIcon(createColorToolButtonIcon(SmallIcon("format-fill-color"), color));
 604 }
 605
 606
 607 void InputWidget::on_showStyleButton_toggled(bool checked)
 608 {
 609     ui.styleFrame->setVisible(checked);
 610     if (checked) {
 611         ui.showStyleButton->setArrowType(Qt::LeftArrow);
 612     }
 613     else {
 614         ui.showStyleButton->setArrowType(Qt::RightArrow);
 615     }
 616 }
 617
 618
 619 QIcon InputWidget::createColorToolButtonIcon(const QIcon &icon, const QColor &color)
 620 {
 621     QPixmap pixmap(16, 16);
 622     pixmap.fill(Qt::transparent);
 623     QPainter painter(&pixmap);
 624     QPixmap image = icon.pixmap(16, 16);
 625     QRect target(0, 0, 16, 14);
 626     QRect source(0, 0, 16, 14);
 627     painter.fillRect(QRect(0, 14, 16, 16), color);
 628     painter.drawPixmap(target, image, source);
 629
 630     return QIcon(pixmap);
 631 }
 632
 633
 634 // MOUSE WHEEL FILTER
 635 MouseWheelFilter::MouseWheelFilter(QObject *parent)
 636     : QObject(parent)
 637 {
 638 }
 639
 640
 641 bool MouseWheelFilter::eventFilter(QObject *obj, QEvent *event)
 642 {
 643     if (event->type() != QEvent::Wheel)
 644         return QObject::eventFilter(obj, event);
 645     else
 646         return true;
 647 }