subsurface/desktop-widgets/tab-widgets/maintab.cpp
Berthold Stoeger 2021035cfc selection: replace selectedTrips() by singleSelectedTrip() function
To check wether the tab widgets should show the trip view, they called
the selectedTrips() function. The trip view was shown if that contained
only one trip. However, the selectedTrips() function was very slow,
because it has to query to core models.

Change the function to singleSelectedTrip(), which returns a trip
if there is exactly one trip selected. The function returns early
if there is more than one trip selected. This makes the select-all
case much faster.

There are two cases which are still very slow:
- List mode, because here all top-level items are queried.
- Dive log with many only top-level items.

Ultimately, we will have to cache the trip selection because
querying the model is too slow.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2020-04-26 13:54:59 -07:00

705 lines
22 KiB
C++

// SPDX-License-Identifier: GPL-2.0
/*
* maintab.cpp
*
* classes for the "notebook" area of the main window of Subsurface
*
*/
#include "desktop-widgets/tab-widgets/maintab.h"
#include "desktop-widgets/mainwindow.h"
#include "desktop-widgets/mapwidget.h"
#include "core/qthelper.h"
#include "core/trip.h"
#include "qt-models/diveplannermodel.h"
#include "desktop-widgets/divelistview.h"
#include "core/selection.h"
#include "profile-widget/profilewidget2.h"
#include "desktop-widgets/diveplanner.h"
#include "core/divesitehelpers.h"
#include "qt-models/divecomputerextradatamodel.h"
#include "qt-models/divelocationmodel.h"
#include "qt-models/filtermodels.h"
#include "core/divesite.h"
#include "core/errorhelper.h"
#include "core/subsurface-string.h"
#include "core/gettextfromc.h"
#include "desktop-widgets/locationinformation.h"
#include "desktop-widgets/simplewidgets.h"
#include "commands/command.h"
#include "TabDiveEquipment.h"
#include "TabDiveExtraInfo.h"
#include "TabDiveInformation.h"
#include "TabDivePhotos.h"
#include "TabDiveStatistics.h"
#include "TabDiveSite.h"
#include <QCompleter>
#include <QSettings>
#include <QScrollBar>
#include <QShortcut>
#include <QMessageBox>
#include <QDesktopServices>
#include <QStringList>
struct Completers {
QCompleter *divemaster;
QCompleter *buddy;
QCompleter *tags;
};
MainTab::MainTab(QWidget *parent) : QTabWidget(parent),
editMode(false),
ignoreInput(false),
lastSelectedDive(true),
lastTabSelectedDive(0),
lastTabSelectedDiveTrip(0),
currentTrip(0)
{
ui.setupUi(this);
extraWidgets << new TabDiveEquipment();
ui.tabWidget->addTab(extraWidgets.last(), tr("Equipment"));
extraWidgets << new TabDiveInformation();
ui.tabWidget->addTab(extraWidgets.last(), tr("Information"));
extraWidgets << new TabDiveStatistics();
ui.tabWidget->addTab(extraWidgets.last(), tr("Statistics"));
extraWidgets << new TabDivePhotos();
ui.tabWidget->addTab(extraWidgets.last(), tr("Media"));
extraWidgets << new TabDiveExtraInfo();
ui.tabWidget->addTab(extraWidgets.last(), tr("Extra Info"));
extraWidgets << new TabDiveSite();
ui.tabWidget->addTab(extraWidgets.last(), tr("Dive sites"));
ui.dateEdit->setDisplayFormat(prefs.date_format);
ui.timeEdit->setDisplayFormat(prefs.time_format);
memset(&displayed_dive, 0, sizeof(displayed_dive));
closeMessage();
connect(&diveListNotifier, &DiveListNotifier::divesChanged, this, &MainTab::divesChanged);
connect(&diveListNotifier, &DiveListNotifier::tripChanged, this, &MainTab::tripChanged);
connect(&diveListNotifier, &DiveListNotifier::diveSiteChanged, this, &MainTab::diveSiteEdited);
connect(&diveListNotifier, &DiveListNotifier::commandExecuted, this, &MainTab::closeWarning);
connect(ui.editDiveSiteButton, &QToolButton::clicked, MainWindow::instance(), &MainWindow::startDiveSiteEdit);
connect(ui.location, &DiveLocationLineEdit::entered, MapWidget::instance(), &MapWidget::centerOnIndex);
connect(ui.location, &DiveLocationLineEdit::currentChanged, MapWidget::instance(), &MapWidget::centerOnIndex);
connect(ui.location, &DiveLocationLineEdit::editingFinished, this, &MainTab::on_location_diveSiteSelected);
QAction *action = new QAction(tr("Apply changes"), this);
connect(action, SIGNAL(triggered(bool)), this, SLOT(acceptChanges()));
ui.diveNotesMessage->addAction(action);
action = new QAction(tr("Discard changes"), this);
connect(action, SIGNAL(triggered(bool)), this, SLOT(rejectChanges()));
ui.diveNotesMessage->addAction(action);
action = new QAction(tr("OK"), this);
connect(action, &QAction::triggered, this, &MainTab::closeWarning);
ui.multiDiveWarningMessage->addAction(action);
action = new QAction(tr("Undo"), this);
connect(action, &QAction::triggered, Command::undoAction(this), &QAction::trigger);
connect(action, &QAction::triggered, this, &MainTab::closeWarning);
ui.multiDiveWarningMessage->addAction(action);
QShortcut *closeKey = new QShortcut(QKeySequence(Qt::Key_Escape), this);
connect(closeKey, SIGNAL(activated()), this, SLOT(escDetected()));
if (qApp->style()->objectName() == "oxygen")
setDocumentMode(true);
else
setDocumentMode(false);
// we start out with the fields read-only; once things are
// filled from a dive, they are made writeable
setEnabled(false);
Completers completers;
completers.buddy = new QCompleter(&buddyModel, ui.buddy);
completers.divemaster = new QCompleter(&diveMasterModel, ui.divemaster);
completers.tags = new QCompleter(&tagModel, ui.tagWidget);
completers.buddy->setCaseSensitivity(Qt::CaseInsensitive);
completers.divemaster->setCaseSensitivity(Qt::CaseInsensitive);
completers.tags->setCaseSensitivity(Qt::CaseInsensitive);
ui.buddy->setCompleter(completers.buddy);
ui.divemaster->setCompleter(completers.divemaster);
ui.tagWidget->setCompleter(completers.tags);
ui.diveNotesMessage->hide();
ui.multiDiveWarningMessage->hide();
ui.depth->hide();
ui.depthLabel->hide();
ui.duration->hide();
ui.durationLabel->hide();
setMinimumHeight(0);
setMinimumWidth(0);
// Current display of things on Gnome3 looks like shit, so
// let's fix that.
if (isGnome3Session()) {
QPalette p;
p.setColor(QPalette::Window, QColor(Qt::white));
ui.scrollArea->viewport()->setPalette(p);
// GroupBoxes in Gnome3 looks like I'v drawn them...
static const QString gnomeCss = QStringLiteral(
"QGroupBox {"
"background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,"
"stop: 0 #E0E0E0, stop: 1 #FFFFFF);"
"border: 2px solid gray;"
"border-radius: 5px;"
"margin-top: 1ex;"
"}"
"QGroupBox::title {"
"subcontrol-origin: margin;"
"subcontrol-position: top center;"
"padding: 0 3px;"
"background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,"
"stop: 0 #E0E0E0, stop: 1 #FFFFFF);"
"}");
Q_FOREACH (QGroupBox *box, findChildren<QGroupBox *>()) {
box->setStyleSheet(gnomeCss);
}
}
// QLineEdit and QLabels should have minimal margin on the left and right but not waste vertical space
QMargins margins(3, 2, 1, 0);
Q_FOREACH (QLabel *label, findChildren<QLabel *>()) {
label->setContentsMargins(margins);
}
connect(ui.diveNotesMessage, &KMessageWidget::showAnimationFinished,
ui.location, &DiveLocationLineEdit::fixPopupPosition);
connect(ui.multiDiveWarningMessage, &KMessageWidget::showAnimationFinished,
ui.location, &DiveLocationLineEdit::fixPopupPosition);
// enable URL clickability in notes:
new TextHyperlinkEventFilter(ui.notes);//destroyed when ui.notes is destroyed
ui.diveTripLocation->hide();
}
MainTab::~MainTab()
{
}
void MainTab::hideMessage()
{
ui.diveNotesMessage->animatedHide();
}
void MainTab::closeMessage()
{
hideMessage();
ui.diveNotesMessage->setCloseButtonVisible(false);
}
void MainTab::closeWarning()
{
ui.multiDiveWarningMessage->hide();
}
void MainTab::displayMessage(QString str)
{
ui.diveNotesMessage->setCloseButtonVisible(false);
ui.diveNotesMessage->setText(str);
ui.diveNotesMessage->animatedShow();
}
void MainTab::enableEdition()
{
if (current_dive == NULL || editMode)
return;
ui.editDiveSiteButton->setEnabled(false);
MainWindow::instance()->diveList->setEnabled(false);
MainWindow::instance()->setEnabledToolbar(false);
ui.dateEdit->setEnabled(true);
displayMessage(tr("This dive is being edited."));
editMode = true;
}
// This function gets called if a field gets updated by an undo command.
// Refresh the corresponding UI field.
void MainTab::divesChanged(const QVector<dive *> &dives, DiveField field)
{
// If the current dive is not in list of changed dives, do nothing
if (!current_dive || !dives.contains(current_dive))
return;
if (field.duration)
ui.duration->setText(render_seconds_to_string(current_dive->duration.seconds));
if (field.depth)
ui.depth->setText(get_depth_string(current_dive->maxdepth, true));
if (field.rating)
ui.rating->setCurrentStars(current_dive->rating);
if (field.notes)
updateNotes(current_dive);
if (field.datetime) {
updateDateTime(current_dive);
MainWindow::instance()->graphics->dateTimeChanged();
DivePlannerPointsModel::instance()->getDiveplan().when = current_dive->when;
}
if (field.divesite)
updateDiveSite(current_dive);
if (field.tags)
ui.tagWidget->setText(get_taglist_string(current_dive->tag_list));
if (field.buddy)
ui.buddy->setText(current_dive->buddy);
if (field.divemaster)
ui.divemaster->setText(current_dive->divemaster);
// If duration or depth changed, the profile needs to be replotted
if (field.duration || field.depth)
MainWindow::instance()->graphics->plotDive(current_dive, true);
}
void MainTab::diveSiteEdited(dive_site *ds, int)
{
if (current_dive && current_dive->dive_site == ds)
updateDiveSite(current_dive);
}
// This function gets called if a trip-field gets updated by an undo command.
// Refresh the corresponding UI field.
void MainTab::tripChanged(dive_trip *trip, TripField field)
{
// If the current dive is not in list of changed dives, do nothing
if (currentTrip != trip)
return;
if (field.notes)
ui.notes->setText(currentTrip->notes);
if (field.location)
ui.diveTripLocation->setText(currentTrip->location);
}
void MainTab::nextInputField(QKeyEvent *event)
{
keyPressEvent(event);
}
bool MainTab::isEditing()
{
return editMode;
}
static bool isHtml(const QString &s)
{
return s.contains("<div", Qt::CaseInsensitive) || s.contains("<table", Qt::CaseInsensitive);
}
void MainTab::updateNotes(const struct dive *d)
{
QString tmp(d->notes);
if (isHtml(tmp)) {
ui.notes->setHtml(tmp);
} else {
ui.notes->setPlainText(tmp);
}
}
static QDateTime timestampToDateTime(timestamp_t when)
{
// Subsurface always uses "local time" as in "whatever was the local time at the location"
// so all time stamps have no time zone information and are in UTC
QDateTime localTime = QDateTime::fromMSecsSinceEpoch(1000 * when, Qt::UTC);
localTime.setTimeSpec(Qt::UTC);
return localTime;
}
void MainTab::updateDateTime(const struct dive *d)
{
QDateTime localTime = timestampToDateTime(d->when);
ui.dateEdit->setDate(localTime.date());
ui.timeEdit->setTime(localTime.time());
}
void MainTab::updateTripDate(const struct dive_trip *t)
{
QDateTime localTime = timestampToDateTime(trip_date(t));
ui.dateEdit->setDate(localTime.date());
}
void MainTab::updateDiveSite(struct dive *d)
{
struct dive_site *ds = d->dive_site;
ui.location->setCurrentDiveSite(d);
if (ds) {
ui.locationTags->setText(constructLocationTags(&ds->taxonomy, true));
if (ui.locationTags->text().isEmpty() && has_location(&ds->location))
ui.locationTags->setText(printGPSCoords(&ds->location));
ui.editDiveSiteButton->setEnabled(true);
} else {
ui.locationTags->clear();
ui.editDiveSiteButton->setEnabled(false);
}
}
void MainTab::updateDiveInfo()
{
ui.location->refreshDiveSiteCache();
// don't execute this while adding / planning a dive
if (editMode || MainWindow::instance()->graphics->isPlanner())
return;
// If there is no current dive, disable all widgets except the last, which is the dive site tab.
// TODO: Conceptually, the dive site tab shouldn't even be a tab here!
bool enabled = current_dive != nullptr;
ui.notesTab->setEnabled(enabled);
for (int i = 0; i < extraWidgets.size() - 1; ++i)
extraWidgets[i]->setEnabled(enabled);
ignoreInput = true; // don't trigger on changes to the widgets
for (TabBase *widget: extraWidgets)
widget->updateData();
if (current_dive) {
// If we're on the dive-site tab, we don't want to switch tab when entering / exiting
// trip mode. The reason is that
// 1) this disrupts the user-experience and
// 2) the filter is reset, potentially erasing the current trip under our feet.
// TODO: Don't hard code tab location!
bool onDiveSiteTab = ui.tabWidget->currentIndex() == 6;
if (dive_trip *currentTrip = MainWindow::instance()->diveList->singleSelectedTrip()) {
// Remember the tab selected for last dive but only if we're not on the dive site tab
if (lastSelectedDive && !onDiveSiteTab)
lastTabSelectedDive = ui.tabWidget->currentIndex();
ui.tabWidget->setTabText(0, tr("Trip notes"));
// Recover the tab selected for last dive trip but only if we're not on the dive site tab
if (lastSelectedDive && !onDiveSiteTab)
ui.tabWidget->setCurrentIndex(lastTabSelectedDiveTrip);
lastSelectedDive = false;
// only use trip relevant fields
ui.divemaster->setVisible(false);
ui.DivemasterLabel->setVisible(false);
ui.buddy->setVisible(false);
ui.BuddyLabel->setVisible(false);
ui.rating->setVisible(false);
ui.RatingLabel->setVisible(false);
ui.tagWidget->setVisible(false);
ui.TagLabel->setVisible(false);
ui.dateEdit->setReadOnly(true);
ui.timeLabel->setVisible(false);
ui.timeEdit->setVisible(false);
ui.diveTripLocation->show();
ui.location->hide();
ui.locationPopupButton->hide();
ui.editDiveSiteButton->hide();
// rename the remaining fields and fill data from selected trip
ui.LocationLabel->setText(tr("Trip location"));
ui.diveTripLocation->setText(currentTrip->location);
updateTripDate(currentTrip);
ui.locationTags->clear();
//TODO: Fix this.
//ui.location->setText(currentTrip->location);
ui.NotesLabel->setText(tr("Trip notes"));
ui.notes->setText(currentTrip->notes);
ui.depth->setVisible(false);
ui.depthLabel->setVisible(false);
ui.duration->setVisible(false);
ui.durationLabel->setVisible(false);
} else {
// Remember the tab selected for last dive trip but only if we're not on the dive site tab
if (!lastSelectedDive && !onDiveSiteTab)
lastTabSelectedDiveTrip = ui.tabWidget->currentIndex();
ui.tabWidget->setTabText(0, tr("Notes"));
// Recover the tab selected for last dive but only if we're not on the dive site tab
if (!lastSelectedDive && !onDiveSiteTab)
ui.tabWidget->setCurrentIndex(lastTabSelectedDive);
lastSelectedDive = true;
currentTrip = NULL;
// make all the fields visible writeable
ui.diveTripLocation->hide();
ui.location->show();
ui.locationPopupButton->show();
ui.editDiveSiteButton->show();
ui.divemaster->setVisible(true);
ui.buddy->setVisible(true);
ui.rating->setVisible(true);
ui.RatingLabel->setVisible(true);
ui.BuddyLabel->setVisible(true);
ui.DivemasterLabel->setVisible(true);
ui.TagLabel->setVisible(true);
ui.tagWidget->setVisible(true);
ui.dateEdit->setReadOnly(false);
ui.timeLabel->setVisible(true);
ui.timeEdit->setVisible(true);
/* and fill them from the dive */
ui.rating->setCurrentStars(current_dive->rating);
// reset labels in case we last displayed trip notes
ui.LocationLabel->setText(tr("Location"));
ui.NotesLabel->setText(tr("Notes"));
ui.tagWidget->setText(get_taglist_string(current_dive->tag_list));
bool isManual = same_string(current_dive->dc.model, "manually added dive");
ui.depth->setVisible(isManual);
ui.depthLabel->setVisible(isManual);
ui.duration->setVisible(isManual);
ui.durationLabel->setVisible(isManual);
updateNotes(current_dive);
updateDiveSite(current_dive);
updateDateTime(current_dive);
ui.divemaster->setText(current_dive->divemaster);
ui.buddy->setText(current_dive->buddy);
}
ui.duration->setText(render_seconds_to_string(current_dive->duration.seconds));
ui.depth->setText(get_depth_string(current_dive->maxdepth, true));
if(ui.locationTags->text().isEmpty())
ui.locationTags->hide();
else
ui.locationTags->show();
ui.editDiveSiteButton->setEnabled(!ui.location->text().isEmpty());
/* unset the special value text for date and time, just in case someone dove at midnight */
ui.dateEdit->setSpecialValueText(QString());
ui.timeEdit->setSpecialValueText(QString());
} else {
/* clear the fields */
clearTabs();
ui.rating->setCurrentStars(0);
ui.location->clear();
ui.divemaster->clear();
ui.buddy->clear();
ui.notes->clear();
/* set date and time to minimums which triggers showing the special value text */
ui.dateEdit->setSpecialValueText(QString("-"));
ui.dateEdit->setMinimumDate(QDate(1, 1, 1));
ui.dateEdit->setDate(QDate(1, 1, 1));
ui.timeEdit->setSpecialValueText(QString("-"));
ui.timeEdit->setMinimumTime(QTime(0, 0, 0, 0));
ui.timeEdit->setTime(QTime(0, 0, 0, 0));
ui.tagWidget->clear();
}
ignoreInput = false;
if (verbose && current_dive && current_dive->dive_site)
qDebug() << "Set the current dive site:" << current_dive->dive_site->uuid;
}
void MainTab::reload()
{
buddyModel.updateModel();
diveMasterModel.updateModel();
tagModel.updateModel();
}
void MainTab::refreshDisplayedDiveSite()
{
ui.location->setCurrentDiveSite(current_dive);
}
void MainTab::acceptChanges()
{
if (ui.location->hasFocus())
stealFocus();
ignoreInput = true;
ui.dateEdit->setEnabled(true);
hideMessage();
if (editMode) {
MainWindow::instance()->showProfile();
DivePlannerPointsModel::instance()->setPlanMode(DivePlannerPointsModel::NOTHING);
Command::editProfile(&displayed_dive);
}
int scrolledBy = MainWindow::instance()->diveList->verticalScrollBar()->sliderPosition();
if (editMode) {
MainWindow::instance()->diveList->reload();
MainWindow::instance()->refreshDisplay();
MainWindow::instance()->graphics->replot();
} else {
MainWindow::instance()->refreshDisplay();
}
DivePlannerPointsModel::instance()->setPlanMode(DivePlannerPointsModel::NOTHING);
MainWindow::instance()->diveList->verticalScrollBar()->setSliderPosition(scrolledBy);
MainWindow::instance()->diveList->setFocus();
MainWindow::instance()->setEnabledToolbar(true);
ui.editDiveSiteButton->setEnabled(!ui.location->text().isEmpty());
ignoreInput = false;
editMode = false;
}
void MainTab::rejectChanges()
{
if (editMode && current_dive) {
if (QMessageBox::warning(MainWindow::instance(), TITLE_OR_TEXT(tr("Discard the changes?"),
tr("You are about to discard your changes.")),
QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Discard) != QMessageBox::Discard) {
return;
}
}
ui.dateEdit->setEnabled(true);
editMode = false;
hideMessage();
// no harm done to call cancelPlan even if we were not PLAN mode...
DivePlannerPointsModel::instance()->cancelPlan();
// now make sure that the correct dive is displayed
if (current_dive)
copy_dive(current_dive, &displayed_dive);
else
clear_dive(&displayed_dive);
updateDiveInfo();
// show the profile and dive info
MainWindow::instance()->graphics->replot();
MainWindow::instance()->setEnabledToolbar(true);
ui.editDiveSiteButton->setEnabled(!ui.location->text().isEmpty());
}
void MainTab::divesEdited(int i)
{
// No warning if only one dive was edited
if (i <= 1)
return;
ui.multiDiveWarningMessage->setCloseButtonVisible(false);
ui.multiDiveWarningMessage->setText(tr("Warning: edited %1 dives").arg(i));
ui.multiDiveWarningMessage->show();
}
void MainTab::on_buddy_editingFinished()
{
if (ignoreInput || !current_dive)
return;
divesEdited(Command::editBuddies(stringToList(ui.buddy->toPlainText()), false));
}
void MainTab::on_divemaster_editingFinished()
{
if (ignoreInput || !current_dive)
return;
divesEdited(Command::editDiveMaster(stringToList(ui.divemaster->toPlainText()), false));
}
void MainTab::on_duration_editingFinished()
{
if (ignoreInput || !current_dive)
return;
// Duration editing is special: we only edit the current dive.
divesEdited(Command::editDuration(parseDurationToSeconds(ui.duration->text()), true));
}
void MainTab::on_depth_editingFinished()
{
if (ignoreInput || !current_dive)
return;
// Depth editing is special: we only edit the current dive.
divesEdited(Command::editDepth(parseLengthToMm(ui.depth->text()), true));
}
// Editing of the dive time is different. If multiple dives are edited,
// all dives are shifted by an offset.
static void shiftTime(QDateTime &dateTime)
{
timestamp_t when = dateTime.toTime_t();
if (current_dive && current_dive->when != when) {
timestamp_t offset = when - current_dive->when;
Command::shiftTime(getDiveSelection(), (int)offset);
}
}
void MainTab::on_dateEdit_dateChanged(const QDate &date)
{
if (ignoreInput || !current_dive)
return;
QDateTime dateTime = QDateTime::fromMSecsSinceEpoch(1000*current_dive->when, Qt::UTC);
dateTime.setTimeSpec(Qt::UTC);
dateTime.setDate(date);
shiftTime(dateTime);
}
void MainTab::on_timeEdit_timeChanged(const QTime &time)
{
if (ignoreInput || !current_dive)
return;
QDateTime dateTime = QDateTime::fromMSecsSinceEpoch(1000*current_dive->when, Qt::UTC);
dateTime.setTimeSpec(Qt::UTC);
dateTime.setTime(time);
shiftTime(dateTime);
}
void MainTab::on_tagWidget_editingFinished()
{
if (ignoreInput || !current_dive)
return;
divesEdited(Command::editTags(ui.tagWidget->getBlockStringList(), false));
}
void MainTab::on_location_diveSiteSelected()
{
if (ignoreInput || !current_dive)
return;
struct dive_site *newDs = ui.location->currDiveSite();
if (newDs == RECENTLY_ADDED_DIVESITE)
divesEdited(Command::editDiveSiteNew(ui.location->text(), false));
else
divesEdited(Command::editDiveSite(newDs, false));
}
void MainTab::on_locationPopupButton_clicked()
{
ui.location->showAllSites();
}
void MainTab::on_diveTripLocation_editingFinished()
{
if (!currentTrip)
return;
Command::editTripLocation(currentTrip, ui.diveTripLocation->text());
}
void MainTab::on_notes_editingFinished()
{
if (!currentTrip && !current_dive)
return;
QString html = ui.notes->toHtml();
QString notes = isHtml(html) ? html : ui.notes->toPlainText();
if (currentTrip)
Command::editTripNotes(currentTrip, notes);
else
divesEdited(Command::editNotes(notes, false));
}
void MainTab::on_rating_valueChanged(int value)
{
if (ignoreInput || !current_dive)
return;
divesEdited(Command::editRating(value, false));
}
// Remove focus from any active field to update the corresponding value in the dive.
// Do this by setting the focus to ourself
void MainTab::stealFocus()
{
setFocus();
}
void MainTab::escDetected()
{
// In edit mode, pressing escape cancels the current changes.
// In standard mode, remove focus of any active widget to
if (editMode)
rejectChanges();
else
stealFocus();
}
void MainTab::clearTabs()
{
for (auto widget: extraWidgets)
widget->clear();
}