147 lines
4.8 KiB
C++
147 lines
4.8 KiB
C++
// For license of this file, see <project-root-folder>/LICENSE.md.
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#include "gui/tabbar.h"
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#include "definitions/definitions.h"
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#include "gui/reusable/plaintoolbutton.h"
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#include "miscellaneous/settings.h"
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#include "miscellaneous/templates.h"
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#include <QMouseEvent>
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#include <QStyle>
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TabBar::TabBar(QWidget* parent) : QTabBar(parent) {
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setDocumentMode(false);
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setUsesScrollButtons(true);
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setContextMenuPolicy(Qt::ContextMenuPolicy::CustomContextMenu);
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}
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TabBar::~TabBar() {
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qDebugNN << LOGSEC_GUI << "Destroying TabBar instance.";
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}
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void TabBar::setTabType(int index, TabBar::TabType type) {
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const auto button_position = static_cast<ButtonPosition>(style()->styleHint(QStyle::StyleHint::SH_TabBar_CloseButtonPosition,
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nullptr,
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this));
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switch (type) {
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case TabBar::TabType::DownloadManager:
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case TabBar::TabType::Closable: {
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auto* close_button = new PlainToolButton(this);
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close_button->setIcon(qApp->icons()->fromTheme(QSL("application-exit")));
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close_button->setToolTip(tr("Close this tab."));
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close_button->setText(tr("Close tab"));
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close_button->setFixedSize(iconSize());
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// Close underlying tab when button is clicked.
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connect(close_button, &PlainToolButton::clicked, this, &TabBar::closeTabViaButton);
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setTabButton(index, button_position, close_button);
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break;
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}
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default:
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setTabButton(index, button_position, nullptr);
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break;
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}
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setTabData(index, QVariant(int(type)));
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}
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void TabBar::closeTabViaButton() {
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const auto* close_button = qobject_cast<QAbstractButton*>(sender());
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const auto button_position = static_cast<ButtonPosition>(style()->styleHint(QStyle::StyleHint::SH_TabBar_CloseButtonPosition,
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nullptr,
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this));
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if (close_button != nullptr) {
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// Find index of tab for this close button.
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for (int i = 0; i < count(); i++) {
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if (tabButton(i, button_position) == close_button) {
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emit tabCloseRequested(i);
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return;
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}
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}
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}
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}
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void TabBar::wheelEvent(QWheelEvent* event) {
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const int current_index = currentIndex();
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const int number_of_tabs = count();
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// Make sure rotating works.
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if (number_of_tabs > 1) {
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if (event->angleDelta().y() > 0) {
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// Scroll to the LEFT tab.
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setCurrentIndex(current_index == 0
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? number_of_tabs - 1
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: current_index - 1);
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}
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else if (event->angleDelta().y() < 0) {
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// Scroll to the RIGHT tab.
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setCurrentIndex(current_index == number_of_tabs - 1
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? 0
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: current_index + 1);
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}
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}
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}
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void TabBar::mousePressEvent(QMouseEvent* event) {
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QTabBar::mousePressEvent(event);
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const int tab_index = tabAt(event->pos());
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// Check if user clicked on some tab or on empty space.
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if (tab_index >= 0) {
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// Check if user clicked tab with middle button.
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// NOTE: This needs to be done here because
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// destination does not know the original event.
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if ((event->button() & Qt::MiddleButton) == Qt::MiddleButton &&
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qApp->settings()->value(GROUP(GUI), SETTING(GUI::TabCloseMiddleClick)).toBool()) {
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if (tabType(tab_index) == TabBar::TabType::Closable || tabType(tab_index) == TabBar::TabType::DownloadManager) {
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// This tab is closable, so we can close it.
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emit tabCloseRequested(tab_index);
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}
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}
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}
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}
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void TabBar::mouseDoubleClickEvent(QMouseEvent* event) {
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QTabBar::mouseDoubleClickEvent(event);
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const int tab_index = tabAt(event->pos());
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// Check if user clicked on some tab or on empty space.
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if (tab_index >= 0) {
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// Check if user clicked tab with middle button.
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// NOTE: This needs to be done here because
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// destination does not know the original event.
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if ((event->button() & Qt::LeftButton) == Qt::LeftButton &&
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qApp->settings()->value(GROUP(GUI), SETTING(GUI::TabCloseDoubleClick)).toBool()) {
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if (int(tabType(tab_index) & (TabBar::TabType::Closable | TabBar::TabType::DownloadManager)) > 0) {
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// This tab is closable, so we can close it.
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emit tabCloseRequested(tab_index);
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}
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}
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}
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else {
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emit emptySpaceDoubleClicked();
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}
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}
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TabBar::TabType& operator&=(TabBar::TabType& a, TabBar::TabType b) {
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return (TabBar::TabType&)((int&)a &= (int)b);
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}
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TabBar::TabType& operator|=(TabBar::TabType& a, TabBar::TabType b) {
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return (TabBar::TabType&)((int&)a |= (int)b);
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}
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TabBar::TabType operator&(TabBar::TabType a, TabBar::TabType b) {
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return (TabBar::TabType)((int)a & (int)b);
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}
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TabBar::TabType operator|(TabBar::TabType a, TabBar::TabType b) {
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return (TabBar::TabType)((int)a | (int)b);
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}
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