strawberry-audio-player-win.../src/widgets/fancytabwidget.cpp

733 lines
23 KiB
C++

/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2018, Vikram Ambrose <ambroseworks@gmail.com>
* Copyright 2018, Jonas Kvinge <jonas@jkvinge.net>
*
* Strawberry 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 3 of the License, or
* (at your option) any later version.
*
* Strawberry 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 Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <algorithm>
#include <utility>
#include <chrono>
#include <QtGlobal>
#include <QObject>
#include <QApplication>
#include <QTabBar>
#include <QWidget>
#include <QTimer>
#include <QList>
#include <QMap>
#include <QHash>
#include <QVariant>
#include <QString>
#include <QIcon>
#include <QPainter>
#include <QStylePainter>
#include <QColor>
#include <QRect>
#include <QFont>
#include <QFontMetrics>
#include <QSize>
#include <QPoint>
#include <QBrush>
#include <QPen>
#include <QTransform>
#include <QMenu>
#include <QAction>
#include <QActionGroup>
#include <QSettings>
#include <QPixmapCache>
#include <QLayout>
#include <QBoxLayout>
#include <QtEvents>
#include <QStyle>
#include <QCommonStyle>
#include <QProxyStyle>
#include <QStyleOption>
#include <QStyleOptionComplex>
#include "fancytabwidget.h"
#include "core/stylehelper.h"
#include "settings/appearancesettingspage.h"
using namespace std::chrono_literals;
const int FancyTabWidget::IconSize_LargeSidebar = 40;
const int FancyTabWidget::IconSize_SmallSidebar = 32;
const int FancyTabWidget::TabSize_LargeSidebarMinWidth = 70;
class FancyTabBar : public QTabBar { // clazy:exclude=missing-qobject-macro
private:
int mouseHoverTabIndex = -1;
QHash<QWidget*, QString> labelCache;
QMap<int, QWidget*> spacers;
public:
explicit FancyTabBar(QWidget *parent = nullptr) : QTabBar(parent) {
setMouseTracking(true);
}
QSize sizeHint() const override {
FancyTabWidget *tabWidget = qobject_cast<FancyTabWidget*>(parentWidget());
if (tabWidget->mode() == FancyTabWidget::Mode_Tabs || tabWidget->mode() == FancyTabWidget::Mode_IconOnlyTabs) {
return QTabBar::sizeHint();
}
QSize size;
int h = 0;
for (int i = 0; i < count(); ++i) {
if (tabSizeHint(i).width() > size.width()) size.setWidth(tabSizeHint(i).width());
h += tabSizeHint(i).height();
}
size.setHeight(h);
return size;
}
int width() const {
FancyTabWidget *tabWidget = qobject_cast<FancyTabWidget*>(parentWidget());
if (tabWidget->mode() == FancyTabWidget::Mode_LargeSidebar || tabWidget->mode() == FancyTabWidget::Mode_SmallSidebar) {
int w = 0;
for (int i = 0; i < count(); ++i) {
if (tabSizeHint(i).width() > w) w = tabSizeHint(i).width();
}
return w;
}
else {
return QTabBar::width();
}
}
protected:
QSize tabSizeHint(int index) const override {
FancyTabWidget *tabWidget = qobject_cast<FancyTabWidget*>(parentWidget());
QSize size;
if (tabWidget->mode() == FancyTabWidget::Mode_LargeSidebar) {
QFont bold_font(font());
bold_font.setBold(true);
QFontMetrics fm(bold_font);
// If the text of any tab is wider than the set width then use that instead.
int w = std::max(FancyTabWidget::TabSize_LargeSidebarMinWidth, tabWidget->iconsize_largesidebar() + 22);
for (int i = 0; i < count(); ++i) {
QRect rect = fm.boundingRect(QRect(0, 0, std::max(FancyTabWidget::TabSize_LargeSidebarMinWidth, tabWidget->iconsize_largesidebar() + 22), height()), Qt::TextWordWrap, QTabBar::tabText(i));
rect.setWidth(rect.width() + 10);
if (rect.width() > w) w = rect.width();
}
QRect rect = fm.boundingRect(QRect(0, 0, w, height()), Qt::TextWordWrap, QTabBar::tabText(index));
size = QSize(w, tabWidget->iconsize_largesidebar() + rect.height() + 10);
}
else if (tabWidget->mode() == FancyTabWidget::Mode_SmallSidebar) {
QFont bold_font(font());
bold_font.setBold(true);
QFontMetrics fm(bold_font);
QRect rect = fm.boundingRect(QRect(0, 0, 100, tabWidget->height()), Qt::AlignHCenter, QTabBar::tabText(index));
int w = std::max(tabWidget->iconsize_smallsidebar(), rect.height()) + 15;
int h = tabWidget->iconsize_smallsidebar() + rect.width() + 20;
size = QSize(w, h);
}
else {
size = QTabBar::tabSizeHint(index);
}
return size;
}
void leaveEvent(QEvent *event) override {
Q_UNUSED(event);
mouseHoverTabIndex = -1;
update();
}
void mouseMoveEvent(QMouseEvent *event) override {
QPoint pos = event->pos();
mouseHoverTabIndex = tabAt(pos);
if (mouseHoverTabIndex > -1) {
update();
}
QTabBar::mouseMoveEvent(event);
}
void paintEvent(QPaintEvent *pe) override {
FancyTabWidget *tabWidget = qobject_cast<FancyTabWidget*>(parentWidget());
bool verticalTextTabs = false;
if (tabWidget->mode() == FancyTabWidget::Mode_SmallSidebar) {
verticalTextTabs = true;
}
// if LargeSidebar, restore spacers
if (tabWidget->mode() == FancyTabWidget::Mode_LargeSidebar && spacers.count() > 0) {
QList<int> keys = spacers.keys();
for (const int index : keys) {
tabWidget->insertTab(index, spacers[index], QIcon(), QString());
tabWidget->setTabEnabled(index, false);
}
spacers.clear();
}
else if (tabWidget->mode() != FancyTabWidget::Mode_LargeSidebar) {
// traverse in the opposite order to save indices of spacers
for (int i = count() - 1; i >= 0; --i) {
// spacers are disabled tabs
if (!isTabEnabled(i) && !spacers.contains(i)) {
spacers[i] = tabWidget->widget(i);
tabWidget->removeTab(i);
--i;
}
}
}
// Restore any label text that was hidden/cached for the IconOnlyTabs mode
if (labelCache.count() > 0 && tabWidget->mode() != FancyTabWidget::Mode_IconOnlyTabs) {
for (int i = 0; i < count(); ++i) {
setTabToolTip(i, "");
setTabText(i, labelCache[tabWidget->widget(i)]);
}
labelCache.clear();
}
if (tabWidget->mode() != FancyTabWidget::Mode_LargeSidebar && tabWidget->mode() != FancyTabWidget::Mode_SmallSidebar) {
// Cache and hide label text for IconOnlyTabs mode
if (tabWidget->mode() == FancyTabWidget::Mode_IconOnlyTabs && labelCache.count() == 0) {
for(int i = 0; i < count(); ++i) {
labelCache[tabWidget->widget(i)] = tabText(i);
setTabToolTip(i, tabText(i));
setTabText(i, "");
}
}
QTabBar::paintEvent(pe);
return;
}
QStylePainter p(this);
for (int index = 0; index < count(); ++index) {
const bool selected = tabWidget->currentIndex() == index;
QRect tabrect = tabRect(index);
QRect selectionRect = tabrect;
if (selected) {
// Selection highlight
p.save();
QLinearGradient grad(selectionRect.topLeft(), selectionRect.topRight());
grad.setColorAt(0, QColor(255, 255, 255, 140));
grad.setColorAt(1, QColor(255, 255, 255, 210));
p.fillRect(selectionRect.adjusted(0,0,0,-1), grad);
p.restore();
// shadow lines
p.setPen(QColor(0, 0, 0, 110));
p.drawLine(selectionRect.topLeft() + QPoint(1, -1), selectionRect.topRight() - QPoint(0, 1));
p.drawLine(selectionRect.bottomLeft(), selectionRect.bottomRight());
p.setPen(QColor(0, 0, 0, 40));
p.drawLine(selectionRect.topLeft(), selectionRect.bottomLeft());
// highlights
p.setPen(QColor(255, 255, 255, 50));
p.drawLine(selectionRect.topLeft() + QPoint(0, -2), selectionRect.topRight() - QPoint(0, 2));
p.drawLine(selectionRect.bottomLeft() + QPoint(0, 1), selectionRect.bottomRight() + QPoint(0, 1));
p.setPen(QColor(255, 255, 255, 40));
p.drawLine(selectionRect.topLeft() + QPoint(0, 0), selectionRect.topRight());
p.drawLine(selectionRect.topRight() + QPoint(0, 1), selectionRect.bottomRight() - QPoint(0, 1));
p.drawLine(selectionRect.bottomLeft() + QPoint(0, -1), selectionRect.bottomRight() - QPoint(0, 1));
}
// Mouse hover effect
if (!selected && index == mouseHoverTabIndex && isTabEnabled(index)) {
p.save();
QLinearGradient grad(selectionRect.topLeft(), selectionRect.topRight());
grad.setColorAt(0, Qt::transparent);
grad.setColorAt(0.5, QColor(255, 255, 255, 40));
grad.setColorAt(1, Qt::transparent);
p.fillRect(selectionRect, grad);
p.setPen(QPen(grad, 1.0));
p.drawLine(selectionRect.topLeft(), selectionRect.topRight());
p.drawLine(selectionRect.bottomRight(), selectionRect.bottomLeft());
p.restore();
}
// Label (Icon and Text)
{
p.save();
QTransform m;
int textFlags = 0;
Qt::Alignment iconFlags;
QRect tabrectText;
QRect tabrectLabel;
if (verticalTextTabs) {
m = QTransform::fromTranslate(tabrect.left(), tabrect.bottom());
m.rotate(-90);
textFlags = Qt::AlignVCenter;
iconFlags = Qt::AlignVCenter;
tabrectLabel = QRect(QPoint(0, 0), m.mapRect(tabrect).size());
tabrectText = tabrectLabel;
tabrectText.translate(tabWidget->iconsize_smallsidebar() + 8, 0);
}
else {
m = QTransform::fromTranslate(tabrect.left(), tabrect.top());
textFlags = Qt::AlignHCenter | Qt::AlignBottom | Qt::TextWordWrap;
iconFlags = Qt::AlignHCenter | Qt::AlignTop;
tabrectLabel = QRect(QPoint(0, 0), m.mapRect(tabrect).size());
tabrectText = tabrectLabel;
tabrectText.translate(0, -5);
}
p.setTransform(m);
QFont boldFont(p.font());
boldFont.setBold(true);
p.setFont(boldFont);
// Text drop shadow color
p.setPen(selected ? QColor(255, 255, 255, 160) : QColor(0, 0, 0, 110) );
p.translate(0, 3);
p.drawText(tabrectText, textFlags, tabText(index));
// Text foreground color
p.translate(0, -1);
p.setPen(selected ? QColor(60, 60, 60) : StyleHelper::panelTextColor());
p.drawText(tabrectText, textFlags, tabText(index));
// Draw the icon
QRect tabrectIcon;
if (verticalTextTabs) {
tabrectIcon = tabrectLabel;
tabrectIcon.setSize(QSize(tabWidget->iconsize_smallsidebar(), tabWidget->iconsize_smallsidebar()));
// Center the icon
const int moveRight = (QTabBar::width() - tabWidget->iconsize_smallsidebar()) / 2;
tabrectIcon.translate(5, moveRight);
}
else {
tabrectIcon = tabrectLabel;
tabrectIcon.setSize(QSize(tabWidget->iconsize_largesidebar(), tabWidget->iconsize_largesidebar()));
// Center the icon
const int moveRight = (QTabBar::width() - tabWidget->iconsize_largesidebar() -1) / 2;
tabrectIcon.translate(moveRight, 5);
}
tabIcon(index).paint(&p, tabrectIcon, iconFlags);
p.restore();
}
}
}
};
class TabData : public QObject { // clazy:exclude=missing-qobject-macro
public:
TabData(QWidget *widget_view, const QString &name, const QIcon &icon, const QString &label, const int idx, QWidget *parent)
: QObject(parent),
widget_view_(widget_view),
name_(name), icon_(icon),
label_(label),
index_(idx),
page_(new QWidget()) {
// In order to achieve the same effect as the "Bottom Widget" of the old Nokia based FancyTabWidget a VBoxLayout is used on each page
QVBoxLayout *layout = new QVBoxLayout(page_);
layout->setSpacing(0);
layout->setContentsMargins(0, 0, 0, 0);
layout->addWidget(widget_view_);
page_->setLayout(layout);
}
QWidget *widget_view() const { return widget_view_; }
QString name() const { return name_; }
QIcon icon() const { return icon_; }
QString label() const { return label_; }
QWidget *page() const { return page_; }
int index() const { return index_; }
private:
QWidget *widget_view_;
QString name_;
QIcon icon_;
QString label_;
int index_;
QWidget *page_;
};
// Spacers are just disabled pages
void FancyTabWidget::addSpacer() {
QWidget *spacer = new QWidget(this);
const int idx = insertTab(count(), spacer, QIcon(), QString());
setTabEnabled(idx, false);
}
void FancyTabWidget::setBackgroundPixmap(const QPixmap &pixmap) {
background_pixmap_ = pixmap;
update();
}
void FancyTabWidget::setCurrentIndex(int idx) {
Q_ASSERT(count() > 0);
if (idx >= count() || idx < 0) idx = 0;
QWidget *currentPage = widget(idx);
QLayout *layout = currentPage->layout();
if (bottom_widget_) layout->addWidget(bottom_widget_);
QTabWidget::setCurrentIndex(idx);
}
void FancyTabWidget::currentTabChanged(const int idx) {
QWidget *currentPage = currentWidget();
QLayout *layout = currentPage->layout();
if (bottom_widget_) layout->addWidget(bottom_widget_);
emit CurrentChanged(idx);
}
// Override QStyle::subElementRect() and use QCommonStyle to fix a problem with the adwaita style.
// The adwaita style is causing the contents of the tabbar to be stretched from top to bottom with space between icons and text.
// You can see this on the default Fedora (Gnome) installation.
class FancyTabWidgetProxyStyle : public QProxyStyle { // clazy:exclude=missing-qobject-macro
public:
explicit FancyTabWidgetProxyStyle(QStyle *style) : QProxyStyle(style), common_style_(new QCommonStyle()) {}
~FancyTabWidgetProxyStyle() override { common_style_->deleteLater(); }
QRect subElementRect(QStyle::SubElement element, const QStyleOption *option, const QWidget *widget = nullptr) const override {
if (element == QStyle::SE_TabWidgetTabBar) {
QRect proxy_style_rect = QProxyStyle::subElementRect(element, option, widget);
// Fix stretched tabbar (adwaita style issue).
proxy_style_rect.setHeight(common_style_->subElementRect(element, option, widget).height());
return proxy_style_rect;
}
else {
return QProxyStyle::subElementRect(element, option, widget);
}
}
private:
QCommonStyle *common_style_;
};
FancyTabWidget::FancyTabWidget(QWidget *parent)
: QTabWidget(parent),
style_(nullptr),
menu_(nullptr),
mode_(Mode_None),
bottom_widget_(nullptr),
bg_color_system_(true),
bg_gradient_(true),
iconsize_smallsidebar_(FancyTabWidget::IconSize_SmallSidebar),
iconsize_largesidebar_(FancyTabWidget::IconSize_LargeSidebar) {
FancyTabBar *tabBar = new FancyTabBar(this);
setTabBar(tabBar);
setTabPosition(QTabWidget::West);
setMovable(true);
setElideMode(Qt::ElideNone);
setUsesScrollButtons(true);
if (QApplication::style() && QApplication::style()->objectName().contains(QRegularExpression("^adwaita.*$", QRegularExpression::CaseInsensitiveOption))) {
style_ = new FancyTabWidgetProxyStyle(style());
setStyle(style_);
}
QObject::connect(tabBar, &FancyTabBar::currentChanged, this, &FancyTabWidget::currentTabChanged);
}
FancyTabWidget::~FancyTabWidget() {
if (style_) style_->deleteLater();
}
void FancyTabWidget::Load(const QString &kSettingsGroup) {
QSettings s;
s.beginGroup(kSettingsGroup);
QMultiMap <int, TabData*> tabs;
for (TabData *tab : std::as_const(tabs_)) {
int idx = s.value("tab_" + tab->name(), tab->index()).toInt();
while (tabs.contains(idx)) { ++idx; }
tabs.insert(idx, tab);
}
s.endGroup();
QMultiMap <int, TabData*> ::iterator i;
for (i = tabs.begin(); i != tabs.end(); ++i) {
TabData *tab = i.value();
const int idx = insertTab(i.key(), tab->page(), tab->icon(), tab->label());
tabBar()->setTabData(idx, QVariant(tab->name()));
}
}
int FancyTabWidget::insertTab(const int idx, QWidget *page, const QIcon &icon, const QString &label) {
return QTabWidget::insertTab(idx, page, icon, label);
}
void FancyTabWidget::SaveSettings(const QString &kSettingsGroup) {
QSettings s;
s.beginGroup(kSettingsGroup);
s.setValue("tab_mode", mode_);
s.setValue("current_tab", currentIndex());
for (TabData *tab : std::as_const(tabs_)) {
QString k = "tab_" + tab->name();
int idx = QTabWidget::indexOf(tab->page());
if (idx < 0) {
if (s.contains(k)) s.remove(k);
}
else {
s.setValue(k, idx);
}
}
s.endGroup();
}
void FancyTabWidget::ReloadSettings() {
QSettings s;
s.beginGroup(AppearanceSettingsPage::kSettingsGroup);
bg_color_system_ = s.value(AppearanceSettingsPage::kTabBarSystemColor, false).toBool();
bg_gradient_ = s.value(AppearanceSettingsPage::kTabBarGradient, true).toBool();
bg_color_ = AppearanceSettingsPage::DefaultTabbarBgColor();
if (!bg_color_system_) {
bg_color_ = s.value(AppearanceSettingsPage::kTabBarColor, bg_color_).value<QColor>();
}
iconsize_smallsidebar_ = s.value(AppearanceSettingsPage::kIconSizeTabbarSmallMode, FancyTabWidget::IconSize_SmallSidebar).toInt();
iconsize_largesidebar_ = s.value(AppearanceSettingsPage::kIconSizeTabbarLargeMode, FancyTabWidget::IconSize_LargeSidebar).toInt();
s.endGroup();
#ifndef Q_OS_MACOS
if (mode() == FancyTabWidget::Mode_LargeSidebar) {
setIconSize(QSize(iconsize_largesidebar_, iconsize_largesidebar_));
}
else {
setIconSize(QSize(iconsize_smallsidebar_, iconsize_smallsidebar_));
}
#endif
update();
tabBarUpdateGeometry();
}
void FancyTabWidget::addBottomWidget(QWidget *widget_view) {
bottom_widget_ = widget_view;
}
void FancyTabWidget::AddTab(QWidget *widget_view, const QString &name, const QIcon &icon, const QString &label) {
TabData *tab = new TabData(widget_view, name, icon, label, tabs_.count(), this);
tabs_.insert(widget_view, tab);
}
bool FancyTabWidget::EnableTab(QWidget *widget_view) {
if (!tabs_.contains(widget_view)) return false;
TabData *tab = tabs_.value(widget_view);
if (QTabWidget::indexOf(tab->page()) >= 0) return true;
const int idx = QTabWidget::insertTab(count(), tab->page(), tab->icon(), tab->label());
tabBar()->setTabData(idx, QVariant(tab->name()));
return true;
}
bool FancyTabWidget::DisableTab(QWidget *widget_view) {
if (!tabs_.contains(widget_view)) return false;
TabData *tab = tabs_.value(widget_view);
int idx = QTabWidget::indexOf(tab->page());
if (idx < 0) return false;
removeTab(idx);
return true;
}
int FancyTabWidget::IndexOfTab(QWidget *widget) {
if (!tabs_.contains(widget)) return -1;
return QTabWidget::indexOf(tabs_[widget]->page());
}
void FancyTabWidget::paintEvent(QPaintEvent *pe) {
if (mode() != FancyTabWidget::Mode_LargeSidebar && mode() != FancyTabWidget::Mode_SmallSidebar) {
QTabWidget::paintEvent(pe);
return;
}
QStylePainter painter(this);
QRect backgroundRect = rect();
backgroundRect.setWidth(tabBar()->width());
QString key = QString::asprintf("mh_vertical %d %d %d %d %d", backgroundRect.width(), backgroundRect.height(), bg_color_.rgb(), (bg_gradient_ ? 1 : 0), (background_pixmap_.isNull() ? 0 : 1));
QPixmap pixmap;
if (!QPixmapCache::find(key, &pixmap)) {
pixmap = QPixmap(backgroundRect.size());
QPainter p(&pixmap);
p.fillRect(backgroundRect, bg_color_);
// Draw the gradient fill.
if (bg_gradient_) {
QRect rect(0, 0, backgroundRect.width(), backgroundRect.height());
QColor shadow = StyleHelper::shadowColor(false);
QLinearGradient grad(backgroundRect.topRight(), backgroundRect.topLeft());
grad.setColorAt(0, bg_color_.lighter(117));
grad.setColorAt(1, shadow.darker(109));
p.fillRect(rect, grad);
QColor light(255, 255, 255, 80);
p.setPen(light);
p.drawLine(rect.topRight() - QPoint(1, 0), rect.bottomRight() - QPoint(1, 0));
QColor dark(0, 0, 0, 90);
p.setPen(dark);
p.drawLine(rect.topLeft(), rect.bottomLeft());
}
// Draw the translucent png graphics over the gradient fill
if (!background_pixmap_.isNull()) {
QRect pixmap_rect(background_pixmap_.rect());
pixmap_rect.moveTo(backgroundRect.topLeft());
while (pixmap_rect.top() < backgroundRect.bottom()) {
QRect source_rect(pixmap_rect.intersected(backgroundRect));
source_rect.moveTo(0, 0);
p.drawPixmap(pixmap_rect.topLeft(), background_pixmap_, source_rect);
pixmap_rect.moveTop(pixmap_rect.bottom() - 10);
}
}
// Shadow effect of the background
QColor light(255, 255, 255, 80);
p.setPen(light);
p.drawLine(backgroundRect.topRight() - QPoint(1, 0), backgroundRect.bottomRight() - QPoint(1, 0));
QColor dark(0, 0, 0, 90);
p.setPen(dark);
p.drawLine(backgroundRect.topLeft(), backgroundRect.bottomLeft());
p.setPen(StyleHelper::borderColor());
p.drawLine(backgroundRect.topRight(), backgroundRect.bottomRight());
p.end();
QPixmapCache::insert(key, pixmap);
}
painter.drawPixmap(backgroundRect.topLeft(), pixmap);
}
void FancyTabWidget::tabBarUpdateGeometry() {
tabBar()->updateGeometry();
}
void FancyTabWidget::SetMode(FancyTabWidget::Mode mode) {
mode_ = mode;
if (mode == FancyTabWidget::Mode_Tabs || mode == FancyTabWidget::Mode_IconOnlyTabs) {
setTabPosition(QTabWidget::North);
}
else {
setTabPosition(QTabWidget::West);
}
#ifndef Q_OS_MACOS
if (mode_ == FancyTabWidget::Mode_LargeSidebar) {
setIconSize(QSize(iconsize_largesidebar_, iconsize_largesidebar_));
}
else {
setIconSize(QSize(iconsize_smallsidebar_, iconsize_smallsidebar_));
}
#endif
tabBar()->updateGeometry();
updateGeometry();
// There appears to be a bug in QTabBar which causes tabSizeHint to be ignored thus the need for this second shot repaint
QTimer::singleShot(1ms, this, &FancyTabWidget::tabBarUpdateGeometry);
emit ModeChanged(mode);
}
void FancyTabWidget::addMenuItem(QActionGroup *group, const QString &text, Mode mode) {
QAction *action = group->addAction(text);
action->setCheckable(true);
QObject::connect(action, &QAction::triggered, this, [this, mode]() { SetMode(mode); });
if (mode == mode_) action->setChecked(true);
}
void FancyTabWidget::contextMenuEvent(QContextMenuEvent *e) {
if (!menu_) {
menu_ = new QMenu(this);
QActionGroup *group = new QActionGroup(this);
addMenuItem(group, tr("Large sidebar"), Mode_LargeSidebar);
addMenuItem(group, tr("Small sidebar"), Mode_SmallSidebar);
addMenuItem(group, tr("Plain sidebar"), Mode_PlainSidebar);
addMenuItem(group, tr("Tabs on top"), Mode_Tabs);
addMenuItem(group, tr("Icons on top"), Mode_IconOnlyTabs);
menu_->addActions(group->actions());
}
menu_->popup(e->globalPos());
}