C++ ChatViewSettings类代码示例

void ChatScene::secondHandlePositionChanged(qreal xpos) {
  if(_secondColHandlePos == xpos)
    return;

  _secondColHandlePos = xpos;
  ChatViewSettings viewSettings(this);
  viewSettings.setValue("SecondColumnHandlePos", _secondColHandlePos);
  ChatViewSettings defaultSettings;
  defaultSettings.setValue("SecondColumnHandlePos", _secondColHandlePos);

  // clock_t startT = clock();

  // disabling the index while doing this complex updates is about
  // 2 to 10 times faster!
  //setItemIndexMethod(QGraphicsScene::NoIndex);

  QList<ChatLine *>::iterator lineIter = _lines.end();
  QList<ChatLine *>::iterator lineIterBegin = _lines.begin();
  qreal linePos = _sceneRect.y() + _sceneRect.height();
  qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
  qreal contentsWidth = _sceneRect.width() - secondColumnHandle()->sceneRight();
  QPointF contentsPos(secondColumnHandle()->sceneRight(), 0);
  while(lineIter != lineIterBegin) {
    lineIter--;
    (*lineIter)->setSecondColumn(senderWidth, contentsWidth, contentsPos, linePos);
  }
  //setItemIndexMethod(QGraphicsScene::BspTreeIndex);

  updateSceneRect();
  setHandleXLimits();
  emit layoutChanged();

//   clock_t endT = clock();
//   qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
}

QtUiStyle::QtUiStyle(QObject* parent)
    : UiStyle(parent)
{
    ChatViewSettings s;
    s.initAndNotify("UseCustomTimestampFormat", this, &QtUiStyle::updateUseCustomTimestampFormat);
    s.initAndNotify("TimestampFormat", this, &QtUiStyle::updateTimestampFormatString);
    s.initAndNotify("SenderPrefixMode", this, &QtUiStyle::updateSenderPrefixDisplay);
    s.initAndNotify("ShowSenderBrackets", this, &QtUiStyle::updateShowSenderBrackets);

    // If no style sheet exists, generate it on first run.
    initializeSettingsQss();
}

void QtUiStyle::updateTimestampFormatString() {
  ChatViewSettings s;
  setTimestampFormatString(s.timestampFormatString());
}

QtUiStyle::QtUiStyle(QObject *parent) : UiStyle(parent) {
  ChatViewSettings s;
  s.notify("TimestampFormat", this, SLOT(updateTimestampFormatString()));
  updateTimestampFormatString();
}

ChatScene::ChatScene(QAbstractItemModel *model, const QString &idString, qreal width, ChatView *parent)
  : QGraphicsScene(0, 0, width, 0, (QObject *)parent),
    _chatView(parent),
    _idString(idString),
    _model(model),
    _singleBufferId(BufferId()),
    _sceneRect(0, 0, width, 0),
    _firstLineRow(-1),
    _viewportHeight(0),
    _markerLine(new MarkerLineItem(width)),
    _markerLineVisible(false),
    _markerLineValid(false),
    _markerLineJumpPending(false),
    _cutoffMode(CutoffRight),
    _selectingItem(0),
    _selectionStart(-1),
    _isSelecting(false),
    _clickMode(NoClick),
    _clickHandled(true),
    _leftButtonPressed(false)
{
  MessageFilter *filter = qobject_cast<MessageFilter*>(model);
  if(filter && filter->isSingleBufferFilter()) {
    _singleBufferId = filter->singleBufferId();
  }

  addItem(_markerLine);
  connect(this, SIGNAL(sceneRectChanged(const QRectF &)), _markerLine, SLOT(sceneRectChanged(const QRectF &)));

  ChatViewSettings defaultSettings;
  int defaultFirstColHandlePos = defaultSettings.value("FirstColumnHandlePos", 80).toInt();
  int defaultSecondColHandlePos = defaultSettings.value("SecondColumnHandlePos", 200).toInt();

  ChatViewSettings viewSettings(this);
  _firstColHandlePos = viewSettings.value("FirstColumnHandlePos", defaultFirstColHandlePos).toInt();
  _secondColHandlePos = viewSettings.value("SecondColumnHandlePos", defaultSecondColHandlePos).toInt();

  _firstColHandle = new ColumnHandleItem(QtUi::style()->firstColumnSeparator());
  addItem(_firstColHandle);
  _firstColHandle->setXPos(_firstColHandlePos);
  connect(_firstColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(firstHandlePositionChanged(qreal)));
  connect(this, SIGNAL(sceneRectChanged(const QRectF &)), _firstColHandle, SLOT(sceneRectChanged(const QRectF &)));

  _secondColHandle = new ColumnHandleItem(QtUi::style()->secondColumnSeparator());
  addItem(_secondColHandle);
  _secondColHandle->setXPos(_secondColHandlePos);
  connect(_secondColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(secondHandlePositionChanged(qreal)));

  connect(this, SIGNAL(sceneRectChanged(const QRectF &)), _secondColHandle, SLOT(sceneRectChanged(const QRectF &)));

  setHandleXLimits();

  if(model->rowCount() > 0)
    rowsInserted(QModelIndex(), 0, model->rowCount() - 1);

  connect(model, SIGNAL(rowsInserted(const QModelIndex &, int, int)),
          this, SLOT(rowsInserted(const QModelIndex &, int, int)));
  connect(model, SIGNAL(rowsAboutToBeRemoved(const QModelIndex &, int, int)),
          this, SLOT(rowsAboutToBeRemoved(const QModelIndex &, int, int)));
  connect(model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
          this, SLOT(rowsRemoved()));
  connect(model, SIGNAL(dataChanged(QModelIndex, QModelIndex)), SLOT(dataChanged(QModelIndex, QModelIndex)));

#ifdef HAVE_WEBKIT
  webPreview.timer.setSingleShot(true);
  connect(&webPreview.timer, SIGNAL(timeout()), this, SLOT(webPreviewNextStep()));
#endif
  _showWebPreview = defaultSettings.showWebPreview();
  defaultSettings.notify("ShowWebPreview", this, SLOT(showWebPreviewChanged()));

  _clickTimer.setInterval(QApplication::doubleClickInterval());
  _clickTimer.setSingleShot(true);
  connect(&_clickTimer, SIGNAL(timeout()), SLOT(clickTimeout()));

  setItemIndexMethod(QGraphicsScene::NoIndex);
}

void QtUiStyle::updateShowSenderBrackets()
{
    ChatViewSettings s;
    enableSenderBrackets(s.showSenderBrackets());
}

void QtUiStyle::updateSenderPrefixDisplay()
{
    ChatViewSettings s;
    setSenderPrefixDisplay(s.senderPrefixDisplay());
}

void QtUiStyle::updateUseCustomTimestampFormat()
{
    ChatViewSettings s;
    setUseCustomTimestampFormat(s.useCustomTimestampFormat());
}

bool QtUiApplication::applySettingsMigration(QtUiSettings settings, const uint newVersion)
{
    switch (newVersion) {
    // Version 0 and 1 aren't valid upgrade paths - one represents no version, the other is the
    // oldest version.  Ignore those, start from 2 and higher.
    // Each missed version will be called in sequence.  E.g. to upgrade from '1' to '3', this
    // function will be called with '2', then '3'.
    // Use explicit scope via { ... } to avoid cross-initialization
    //
    // In most cases, the goal is to preserve the older default values for keys that haven't been
    // saved.  Exceptions will be noted below.
    // NOTE:  If you add new upgrade logic here, you MUST ALSO increase VERSION_MINOR_CURRENT in
    // migrateSettings()!  Otherwise, your upgrade logic won't ever be called.
    case 9:
    {
        // New default changes: show highest sender prefix mode, if available

        // --------
        // ChatView settings
        ChatViewSettings chatViewSettings;
        const QString senderPrefixModeId = "SenderPrefixMode";
        if (!chatViewSettings.valueExists(senderPrefixModeId)) {
            // New default is HighestMode, preserve previous behavior by setting to NoModes
            chatViewSettings.setValue(senderPrefixModeId,
                                      static_cast<int>(UiStyle::SenderPrefixMode::NoModes));
        }
        // --------

        // Migration complete!
        return true;
    }

    case 8:
    {
        // New default changes: RegEx checkbox now toggles Channel regular expressions, too
        //
        // This only affects local highlights.  Core-side highlights weren't released in stable when
        // this change was made, so no need to migrate those.

        // --------
        // NotificationSettings
        NotificationSettings notificationSettings;

        // Check each highlight rule for a "Channel" field.  If one exists, convert to RegEx mode.
        // This might be more efficient with std::transform() or such.  It /is/ only run once...
        auto highlightList = notificationSettings.highlightList();
        bool changesMade = false;
        for (int index = 0; index < highlightList.count(); ++index)
        {
            // Load the highlight rule...
            auto highlightRule = highlightList[index].toMap();

            // Check if "Channel" has anything set and RegEx is disabled
            if (!highlightRule["Channel"].toString().isEmpty()
                    && highlightRule["RegEx"].toBool() == false) {
                // We have a rule to convert

                // Mark as a regular expression, allowing the Channel filtering to work the same as
                // before the upgrade
                highlightRule["RegEx"] = true;

                // Convert the main rule to regular expression, mirroring the conversion to wildcard
                // format from QtUiMessageProcessor::checkForHighlight()
                highlightRule["Name"] =
                        "(^|\\W)" + QRegExp::escape(highlightRule["Name"].toString()) + "(\\W|$)";

                // Save the rule back
                highlightList[index] = highlightRule;
                changesMade = true;
            }
        }

        // Save the modified rules if any changes were made
        if (changesMade) {
            notificationSettings.setHighlightList(highlightList);
        }
        // --------

        // Migration complete!
        return true;
    }
    case 7:
    {
        // New default changes: UseProxy is no longer used in CoreAccountSettings
        CoreAccountSettings s;
        for (auto &&accountId : s.knownAccounts()) {
            auto map = s.retrieveAccountData(accountId);
            if (!map.value("UseProxy", false).toBool()) {
                map["ProxyType"] = static_cast<int>(QNetworkProxy::ProxyType::NoProxy);
            }
            map.remove("UseProxy");
            s.storeAccountData(accountId, map);
        }

        // Migration complete!
        return true;
    }
    case 6:
    {
        // New default changes: sender colors switched around to Tango-ish theme
//.........这里部分代码省略.........

BufferWidget::BufferWidget(QWidget *parent)
  : AbstractBufferContainer(parent),
    _chatViewSearchController(new ChatViewSearchController(this)),
    _autoMarkerLine(true)
{
  ui.setupUi(this);
  layout()->setContentsMargins(0, 0, 0, 0);
  layout()->setSpacing(0);
  // ui.searchBar->hide();

  _chatViewSearchController->setCaseSensitive(ui.searchBar->caseSensitiveBox()->isChecked());
  _chatViewSearchController->setSearchSenders(ui.searchBar->searchSendersBox()->isChecked());
  _chatViewSearchController->setSearchMsgs(ui.searchBar->searchMsgsBox()->isChecked());
  _chatViewSearchController->setSearchOnlyRegularMsgs(ui.searchBar->searchOnlyRegularMsgsBox()->isChecked());

  connect(ui.searchBar, SIGNAL(searchChanged(const QString &)),
    _chatViewSearchController, SLOT(setSearchString(const QString &)));
  connect(ui.searchBar->caseSensitiveBox(), SIGNAL(toggled(bool)),
    _chatViewSearchController, SLOT(setCaseSensitive(bool)));
  connect(ui.searchBar->searchSendersBox(), SIGNAL(toggled(bool)),
    _chatViewSearchController, SLOT(setSearchSenders(bool)));
  connect(ui.searchBar->searchMsgsBox(), SIGNAL(toggled(bool)),
    _chatViewSearchController, SLOT(setSearchMsgs(bool)));
  connect(ui.searchBar->searchOnlyRegularMsgsBox(), SIGNAL(toggled(bool)),
    _chatViewSearchController, SLOT(setSearchOnlyRegularMsgs(bool)));
  connect(ui.searchBar->searchUpButton(), SIGNAL(clicked()),
    _chatViewSearchController, SLOT(highlightPrev()));
  connect(ui.searchBar->searchDownButton(), SIGNAL(clicked()),
    _chatViewSearchController, SLOT(highlightNext()));

  connect(ui.searchBar, SIGNAL(hidden()), this, SLOT(setFocus()));

  connect(_chatViewSearchController, SIGNAL(newCurrentHighlight(QGraphicsItem *)),
    this, SLOT(scrollToHighlight(QGraphicsItem *)));

  ActionCollection *coll = QtUi::actionCollection();

  Action *zoomInChatview = coll->add<Action>("ZoomInChatView", this, SLOT(zoomIn()));
  zoomInChatview->setText(tr("Zoom In"));
  zoomInChatview->setIcon(SmallIcon("zoom-in"));
  zoomInChatview->setShortcut(QKeySequence::ZoomIn);

  Action *zoomOutChatview = coll->add<Action>("ZoomOutChatView", this, SLOT(zoomOut()));
  zoomOutChatview->setIcon(SmallIcon("zoom-out"));
  zoomOutChatview->setText(tr("Zoom Out"));
  zoomOutChatview->setShortcut(QKeySequence::ZoomOut);

  Action *zoomOriginalChatview = coll->add<Action>("ZoomOriginalChatView", this, SLOT(zoomOriginal()));
  zoomOriginalChatview->setIcon(SmallIcon("zoom-original"));
  zoomOriginalChatview->setText(tr("Actual Size"));
  //zoomOriginalChatview->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_0)); // used for RTS switching

  Action *setMarkerLine = coll->add<Action>("SetMarkerLineToBottom", this, SLOT(setMarkerLine()));
  setMarkerLine->setText(tr("Set Marker Line"));
  setMarkerLine->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_R));

  Action *jumpToMarkerLine = QtUi::actionCollection("Navigation")->add<Action>("JumpToMarkerLine", this, SLOT(jumpToMarkerLine()));
  jumpToMarkerLine->setText(tr("Go to Marker Line"));
  jumpToMarkerLine->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_K));

  ChatViewSettings s;
  s.initAndNotify("AutoMarkerLine", this, SLOT(setAutoMarkerLine(QVariant)), true);
}

void ChatScene::showWebPreviewChanged() {
  ChatViewSettings settings;
  _showWebPreview = settings.showWebPreview();
}