607 lines
18 KiB
C++
607 lines
18 KiB
C++
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2018, Vikram Ambrose <ambroseworks@gmail.com>
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* Copyright 2018, Jonas Kvinge <jonas@jkvinge.net>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "fancytabwidget.h"
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#include "core/stylehelper.h"
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#include "core/logging.h"
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#include "settings/appearancesettingspage.h"
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#include <QDebug>
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#include <QObject>
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#include <QTabBar>
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#include <QWidget>
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#include <QMap>
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#include <QHash>
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#include <QString>
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#include <QIcon>
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#include <QPainter>
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#include <QColor>
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#include <QRect>
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#include <QFont>
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#include <QStylePainter>
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#include <QTimer>
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#include <QLayout>
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#include <QVBoxLayout>
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#include <QSize>
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#include <QPoint>
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#include <QTransform>
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#include <QMenu>
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#include <QAction>
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#include <QActionGroup>
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#include <QSettings>
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#include <QMouseEvent>
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#include <QPixmapCache>
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const QSize FancyTabWidget::IconSize_LargeSidebar = QSize(24, 24);
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const QSize FancyTabWidget::IconSize_SmallSidebar = QSize(22, 22);
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const QSize FancyTabWidget::TabSize_LargeSidebar = QSize(70, 47);
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class FancyTabBar: public QTabBar {
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private:
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int mouseHoverTabIndex = -1;
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QMap<QWidget*, QString> labelCache;
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QMap<int, QWidget*> spacers;
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public:
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explicit FancyTabBar(QWidget* parent=0) : QTabBar(parent) {
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setMouseTracking(true);
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}
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QSize sizeHint() const {
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QSize size(QTabBar::sizeHint());
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FancyTabWidget *tabWidget = (FancyTabWidget*) parentWidget();
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if (tabWidget->mode() == FancyTabWidget::Mode_Tabs || tabWidget->mode() == FancyTabWidget::Mode_IconOnlyTabs) return size;
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QSize tabSize(tabSizeHint(0));
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size.setWidth(tabSize.width());
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int guessHeight = tabSize.height()*count();
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if (guessHeight > size.height())
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size.setHeight(guessHeight);
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return size;
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}
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int width() {
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return tabSizeHint(0).width();
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}
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protected:
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QSize tabSizeHint(int index) const {
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FancyTabWidget *tabWidget = (FancyTabWidget*) parentWidget();
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QSize size = FancyTabWidget::TabSize_LargeSidebar;
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if (tabWidget->mode() != FancyTabWidget::Mode_LargeSidebar) {
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size = QTabBar::tabSizeHint(index);
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}
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size.setWidth(std::max(size.width(), 37));
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return size;
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}
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void leaveEvent(QEvent *event) {
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mouseHoverTabIndex = -1;
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update();
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}
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void mouseMoveEvent(QMouseEvent *event) {
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QPoint pos = event->pos();
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mouseHoverTabIndex = tabAt(pos);
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if (mouseHoverTabIndex > -1)
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update();
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QTabBar::mouseMoveEvent(event);
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}
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void paintEvent(QPaintEvent *pe) {
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FancyTabWidget *tabWidget = (FancyTabWidget*) parentWidget();
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bool verticalTextTabs = false;
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if (tabWidget->mode() == FancyTabWidget::Mode_SmallSidebar)
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verticalTextTabs = true;
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// if LargeSidebar, restore spacers
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if (tabWidget->mode() == FancyTabWidget::Mode_LargeSidebar && spacers.count() > 0) {
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for (int index : spacers.keys()) {
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tabWidget->insertTab(index, spacers[index], QIcon(), QString());
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tabWidget->setTabEnabled(index, false);
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}
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spacers.clear();
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}
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else if (tabWidget->mode() != FancyTabWidget::Mode_LargeSidebar) {
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// traverse in the opposite order to save indices of spacers
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for (int i = count() - 1; i >= 0; --i) {
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// spacers are disabled tabs
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if (!isTabEnabled(i) && !spacers.contains(i)) {
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spacers[i] = tabWidget->widget(i);
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tabWidget->removeTab(i);
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--i;
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}
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}
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}
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// Restore any label text that was hidden/cached for the IconOnlyTabs mode
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if (labelCache.count() > 0 && tabWidget->mode() != FancyTabWidget::Mode_IconOnlyTabs) {
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for (int i =0; i < count(); i++) {
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setTabText(i, labelCache[tabWidget->widget(i)]);
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}
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labelCache.clear();
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}
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if (tabWidget->mode() != FancyTabWidget::Mode_LargeSidebar && tabWidget->mode() != FancyTabWidget::Mode_SmallSidebar) {
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// Cache and hide label text for IconOnlyTabs mode
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if (tabWidget->mode() == FancyTabWidget::Mode_IconOnlyTabs && labelCache.count() == 0) {
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for(int i =0; i < count(); i++) {
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labelCache[tabWidget->widget(i)] = tabText(i);
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setTabText(i, "");
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}
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}
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QTabBar::paintEvent(pe);
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return;
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}
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QStylePainter p(this);
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for (int index = 0; index < count(); index++) {
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const bool selected = tabWidget->currentIndex() == index;
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QRect tabrect = tabRect(index);
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QRect selectionRect = tabrect;
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if (selected) {
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// Selection highlight
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p.save();
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QLinearGradient grad(selectionRect.topLeft(), selectionRect.topRight());
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grad.setColorAt(0, QColor(255, 255, 255, 140));
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grad.setColorAt(1, QColor(255, 255, 255, 210));
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p.fillRect(selectionRect.adjusted(0,0,0,-1), grad);
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p.restore();
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// shadow lines
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p.setPen(QColor(0, 0, 0, 110));
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p.drawLine(selectionRect.topLeft() + QPoint(1, -1), selectionRect.topRight() - QPoint(0, 1));
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p.drawLine(selectionRect.bottomLeft(), selectionRect.bottomRight());
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p.setPen(QColor(0, 0, 0, 40));
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p.drawLine(selectionRect.topLeft(), selectionRect.bottomLeft());
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// highlights
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p.setPen(QColor(255, 255, 255, 50));
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p.drawLine(selectionRect.topLeft() + QPoint(0, -2), selectionRect.topRight() - QPoint(0, 2));
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p.drawLine(selectionRect.bottomLeft() + QPoint(0, 1), selectionRect.bottomRight() + QPoint(0, 1));
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p.setPen(QColor(255, 255, 255, 40));
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p.drawLine(selectionRect.topLeft() + QPoint(0, 0), selectionRect.topRight());
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p.drawLine(selectionRect.topRight() + QPoint(0, 1), selectionRect.bottomRight() - QPoint(0, 1));
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p.drawLine(selectionRect.bottomLeft() + QPoint(0, -1), selectionRect.bottomRight() - QPoint(0, 1));
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}
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// Mouse hover effect
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if (!selected && index == mouseHoverTabIndex && isTabEnabled(index)) {
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p.save();
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QLinearGradient grad(selectionRect.topLeft(), selectionRect.topRight());
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grad.setColorAt(0, Qt::transparent);
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grad.setColorAt(0.5, QColor(255, 255, 255, 40));
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grad.setColorAt(1, Qt::transparent);
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p.fillRect(selectionRect, grad);
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p.setPen(QPen(grad, 1.0));
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p.drawLine(selectionRect.topLeft(), selectionRect.topRight());
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p.drawLine(selectionRect.bottomRight(), selectionRect.bottomLeft());
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p.restore();
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}
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// Label (Icon and Text)
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{
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p.save();
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QTransform m;
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int textFlags;
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Qt::Alignment iconFlags;
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QRect tabrectText;
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QRect tabrectLabel;
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if (verticalTextTabs) {
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m = QTransform::fromTranslate(tabrect.left(), tabrect.bottom());
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m.rotate(-90);
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textFlags = Qt::AlignLeft | Qt::AlignVCenter ;
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iconFlags = Qt::AlignLeft | Qt::AlignVCenter;
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tabrectLabel = QRect(QPoint(0, 0), m.mapRect(tabrect).size());
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tabrectText = tabrectLabel;
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tabrectText.translate(30,0);
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}
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else {
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m = QTransform::fromTranslate(tabrect.left(), tabrect.top());
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textFlags = Qt::AlignHCenter | Qt::AlignBottom ;
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iconFlags = Qt::AlignHCenter | Qt::AlignTop;
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tabrectLabel = QRect(QPoint(0, 0), m.mapRect(tabrect).size());
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tabrectText = tabrectLabel;
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tabrectText.translate(0,-5);
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}
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p.setTransform(m);
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QFont boldFont(p.font());
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boldFont.setPointSizeF(StyleHelper::sidebarFontSize());
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boldFont.setBold(true);
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p.setFont(boldFont);
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// Text drop shadow color
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p.setPen(selected ? QColor(255, 255, 255, 160) : QColor(0, 0, 0, 110) );
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p.translate(0, 3);
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p.drawText(tabrectText, textFlags, tabText(index));
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// Text foreground color
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p.translate(0, -1);
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p.setPen(selected ? QColor(60, 60, 60) : StyleHelper::panelTextColor());
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p.drawText(tabrectText, textFlags, tabText(index));
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// Draw the icon
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QRect tabrectIcon;
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const int PADDING = 5;
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if (verticalTextTabs) {
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tabrectIcon = tabrectLabel;
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tabrectIcon.setSize(FancyTabWidget::IconSize_SmallSidebar);
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tabrectIcon.translate(PADDING,PADDING);
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}
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else {
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tabrectIcon = tabrectLabel;
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tabrectIcon.setSize(FancyTabWidget::IconSize_LargeSidebar);
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// Center the icon
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const int moveRight = (FancyTabWidget::TabSize_LargeSidebar.width() - FancyTabWidget::IconSize_LargeSidebar.width() -1)/2;
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tabrectIcon.translate(moveRight,PADDING);
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}
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tabIcon(index).paint(&p, tabrectIcon, iconFlags);
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p.restore();
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}
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}
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}
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};
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class TabData : public QObject {
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public:
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TabData(QWidget *widget_view, const QString name, const QIcon icon, const QString label, const int idx, QWidget *parent) :
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QObject(parent),
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widget_view_(widget_view),
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name_(name), icon_(icon),
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label_(label),
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index_(idx),
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page_(new QWidget()) {
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// In order to achieve the same effect as the "Bottom Widget" of the old Nokia based FancyTabWidget a VBoxLayout is used on each page
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QVBoxLayout *layout = new QVBoxLayout(page_);
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layout->setSpacing(0);
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layout->setContentsMargins(0, 0, 0, 0);
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layout->addWidget(widget_view_);
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page_->setLayout(layout);
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}
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~TabData() {
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//delete page_;
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}
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QWidget *widget_view() { return widget_view_; }
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QString name() { return name_; }
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QIcon icon() { return icon_; }
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QString label() { return label_; }
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QWidget *page() { return page_; }
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int index() { return index_; }
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private:
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QWidget *widget_view_;
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QString name_;
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QIcon icon_;
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QString label_;
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int index_;
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QWidget *page_;
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};
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FancyTabWidget::~FancyTabWidget() {}
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// Spacers are just disabled pages
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void FancyTabWidget::addSpacer() {
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QWidget *spacer = new QWidget(this);
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const int idx = insertTab(count(), spacer, QIcon(), QString());
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setTabEnabled(idx, false);
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}
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void FancyTabWidget::setBackgroundPixmap(const QPixmap& pixmap) {
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background_pixmap_ = pixmap;
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update();
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}
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void FancyTabWidget::setCurrentIndex(int idx) {
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Q_ASSERT(count() > 0);
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if (idx >= count() || idx < 0) idx = 0;
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QWidget *currentPage = widget(idx);
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QLayout *layout = currentPage->layout();
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if (bottom_widget_) layout->addWidget(bottom_widget_);
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QTabWidget::setCurrentIndex(idx);
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}
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void FancyTabWidget::currentTabChanged(int idx) {
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QWidget *currentPage = currentWidget();
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QLayout *layout = currentPage->layout();
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if (bottom_widget_) layout->addWidget(bottom_widget_);
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emit CurrentChanged(idx);
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}
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FancyTabWidget::FancyTabWidget(QWidget* parent) : QTabWidget(parent),
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menu_(nullptr),
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mode_(Mode_None),
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bottom_widget_(nullptr)
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{
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FancyTabBar *tabBar = new FancyTabBar(this);
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setTabBar(tabBar);
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setTabPosition(QTabWidget::West);
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setMovable(true);
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connect(tabBar, SIGNAL(currentChanged(int)), this, SLOT(currentTabChanged(int)));
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}
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void FancyTabWidget::Load(const QString &kSettingsGroup) {
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QSettings s;
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s.beginGroup(kSettingsGroup);
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QMultiMap <int, TabData*> tabs;
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for (TabData *tab : tabs_) {
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int idx = s.value("tab_" + tab->name(), tab->index()).toInt();
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while (tabs.contains(idx)) { ++idx; }
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tabs.insert(idx, tab);
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}
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s.endGroup();
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QMultiMap <int, TabData*> ::iterator i;
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for (i = tabs.begin() ; i != tabs.end() ; ++i) {
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TabData *tab = i.value();
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const int idx = insertTab(i.key(), tab->page(), tab->icon(), tab->label());
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tabBar()->setTabData(idx, QVariant(tab->name()));
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}
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}
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int FancyTabWidget::insertTab(int idx, QWidget *page, const QIcon &icon, const QString &label) {
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return QTabWidget::insertTab(idx, page, icon, label);
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}
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void FancyTabWidget::SaveSettings(const QString &kSettingsGroup) {
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QSettings s;
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s.beginGroup(kSettingsGroup);
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s.setValue("tab_mode", mode_);
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s.setValue("current_tab", currentIndex());
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for (TabData *tab : tabs_) {
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QString k = "tab_" + tab->name();
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int idx = QTabWidget::indexOf(tab->page());
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if (idx < 0) {
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if (s.contains(k)) s.remove(k);
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}
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else {
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s.setValue(k, idx);
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}
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}
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s.endGroup();
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}
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void FancyTabWidget::ReloadSettings() {
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QSettings s;
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s.beginGroup(AppearanceSettingsPage::kSettingsGroup);
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bg_color_system_ = s.value(AppearanceSettingsPage::kTabBarSystemColor, false).toBool();
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bg_gradient_ = s.value(AppearanceSettingsPage::kTabBarGradient, true).toBool();
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bg_color_ = s.value(AppearanceSettingsPage::kTabBarColor, StyleHelper::highlightColor()).value<QColor>();
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s.endGroup();
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update();
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}
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void FancyTabWidget::addBottomWidget(QWidget *widget_view) {
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bottom_widget_ = widget_view;
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}
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void FancyTabWidget::AddTab(QWidget *widget_view, const QString &name, const QIcon &icon, const QString &label) {
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TabData *tab = new TabData(widget_view, name, icon, label, tabs_.count(), this);
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tabs_.insert(widget_view, tab);
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}
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bool FancyTabWidget::EnableTab(QWidget *widget_view) {
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if (!tabs_.contains(widget_view)) return false;
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TabData *tab = tabs_.value(widget_view);
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if (QTabWidget::indexOf(tab->page()) >= 0) return true;
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const int idx = QTabWidget::insertTab(count(), tab->page(), tab->icon(), tab->label());
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tabBar()->setTabData(idx, QVariant(tab->name()));
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return true;
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}
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bool FancyTabWidget::DisableTab(QWidget *widget_view) {
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if (!tabs_.contains(widget_view)) return false;
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TabData *tab = tabs_.value(widget_view);
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int idx = QTabWidget::indexOf(tab->page());
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if (idx < 0) return false;
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removeTab(idx);
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return true;
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}
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void FancyTabWidget::paintEvent(QPaintEvent *pe) {
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if (mode() != FancyTabWidget::Mode_LargeSidebar && mode() != FancyTabWidget::Mode_SmallSidebar) {
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QTabWidget::paintEvent(pe);
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return;
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}
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QStylePainter painter(this);
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QRect backgroundRect = rect();
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backgroundRect.setWidth(tabBar()->width());
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QString key;
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key.sprintf("mh_vertical %d %d %d %d %d", backgroundRect.width(), backgroundRect.height(), bg_color_.rgb(), (bg_gradient_ ? 1 : 0), (background_pixmap_.isNull() ? 0 : 1));
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QPixmap pixmap;
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if (!QPixmapCache::find(key, &pixmap)) {
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pixmap = QPixmap(backgroundRect.size());
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QPainter p(&pixmap);
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p.fillRect(backgroundRect, bg_color_);
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// Draw the gradient fill.
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if (bg_gradient_) {
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QRect rect(0, 0, backgroundRect.width(), backgroundRect.height());
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QColor shadow = StyleHelper::shadowColor(false);
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QLinearGradient grad(backgroundRect.topRight(), backgroundRect.topLeft());
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grad.setColorAt(0, bg_color_.lighter(117));
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grad.setColorAt(1, shadow.darker(109));
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p.fillRect(rect, grad);
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QColor light(255, 255, 255, 80);
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p.setPen(light);
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p.drawLine(rect.topRight() - QPoint(1, 0), rect.bottomRight() - QPoint(1, 0));
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QColor dark(0, 0, 0, 90);
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p.setPen(dark);
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p.drawLine(rect.topLeft(), rect.bottomLeft());
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|
|
}
|
|
|
|
// 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);
|
|
}
|
|
|
|
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(1, this, SLOT(tabBarUpdateGeometry()));
|
|
|
|
emit ModeChanged(mode);
|
|
|
|
}
|
|
|
|
void FancyTabWidget::addMenuItem(QActionGroup* group, const QString& text, Mode mode) {
|
|
|
|
QAction* action = group->addAction(text);
|
|
action->setCheckable(true);
|
|
connect(action, &QAction::triggered, [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());
|
|
|
|
}
|