215 lines
7.0 KiB
C++
215 lines
7.0 KiB
C++
#include "./settingsdialog.h"
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#include "./optioncategorymodel.h"
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#include "./optioncategoryfiltermodel.h"
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#include "./optioncategory.h"
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#include "./optionpage.h"
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#include "../misc/dialogutils.h"
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#include "ui_settingsdialog.h"
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#include <QItemSelectionModel>
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#include <QShowEvent>
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#include <QScrollArea>
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namespace Dialogs {
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/*!
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* \class Dialogs::SettingsDialog
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* \brief The SettingsDialog class provides a framework for creating settings dialogs with different categories and subcategories.
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*/
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/*!
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* \brief Constructs a settings dialog.
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* \param parent Specifies the parent widget.
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*/
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SettingsDialog::SettingsDialog(QWidget *parent) :
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QDialog(parent),
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m_ui(new Ui::SettingsDialog),
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m_categoryModel(new OptionCategoryModel(this)),
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m_categoryFilterModel(new OptionCategoryFilterModel(this)),
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m_currentCategory(nullptr),
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m_tabBarAlwaysVisible(true)
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{
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m_ui->setupUi(this);
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makeHeading(m_ui->headingLabel);
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setStyleSheet(dialogStyle());
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// setup models
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m_categoryFilterModel->setSourceModel(m_categoryModel);
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m_ui->categoriesListView->setModel(m_categoryFilterModel);
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// connect signals and slots
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// selection models
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connect(m_ui->categoriesListView->selectionModel(), &QItemSelectionModel::currentChanged, this, &SettingsDialog::currentCategoryChanged);
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// buttons
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connect(m_ui->abortPushButton, &QPushButton::clicked, this, &SettingsDialog::reject);
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connect(m_ui->applyPushButton, &QPushButton::clicked, this, &SettingsDialog::apply);
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connect(m_ui->okPushButton, &QPushButton::clicked, this, &SettingsDialog::accept);
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// dialog
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connect(this, &SettingsDialog::accepted, this, &SettingsDialog::apply);
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connect(this, &SettingsDialog::rejected, this, &SettingsDialog::reset);
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// misc
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connect(m_ui->filterLineEdit, &QLineEdit::textChanged, m_categoryFilterModel, &OptionCategoryFilterModel::setFilterFixedString);
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connect(m_ui->filterLineEdit, &QLineEdit::textChanged, this, &SettingsDialog::updateTabWidget);
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}
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/*!
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* \brief Destroys the settings dialog.
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*/
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SettingsDialog::~SettingsDialog()
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{}
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/*!
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* \brief Sets whether the tab bar is always visible.
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*
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* \sa SettingsDialog::isTabBarAlwaysVisible()
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*/
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void SettingsDialog::setTabBarAlwaysVisible(bool value)
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{
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m_tabBarAlwaysVisible = value;
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if(m_currentCategory) {
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m_ui->pagesTabWidget->tabBar()->setHidden(!value && m_currentCategory->pages().size() == 1);
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}
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}
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/*!
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* \brief Returns the category for the specified \a categoryIndex.
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*
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* The settings dialog keeps ownership over the returned category.
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* If no category exists for the specified index a null pointer is returned.
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*/
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OptionCategory *SettingsDialog::category(int categoryIndex) const
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{
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return m_categoryModel->category(categoryIndex);
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}
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/*!
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* \brief Returns the page for the specified \a categoryIndex and the specified \a pageIndex.
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*
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* The settings dialog keeps ownership over the returned category.
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* If no page for the specified indices a null pointer is returned.
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*/
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OptionPage *SettingsDialog::page(int categoryIndex, int pageIndex) const
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{
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if(OptionCategory *category = this->category(categoryIndex)) {
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if(pageIndex < category->pages().length()) {
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return category->pages()[pageIndex];
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}
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}
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return nullptr;
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}
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/*!
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* \brief Resets all pages before the dialog is shown by the application.
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*/
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void SettingsDialog::showEvent(QShowEvent *event)
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{
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if(!event->spontaneous()) {
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foreach(OptionCategory *category, m_categoryModel->categories()) {
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foreach(OptionPage *page, category->pages()) {
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page->reset();
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}
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}
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}
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}
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/*!
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* \brief Shows the selected category specified by its model \a index in the category model.
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*
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* This private slot is called when m_ui->categoriesListView->selectionModel()->currentChanged() is emitted.
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*/
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void SettingsDialog::currentCategoryChanged(const QModelIndex &index)
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{
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showCategory(m_categoryModel->category(m_categoryFilterModel->mapToSource(index)));
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}
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/*!
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* \brief Sets the current category to the specified \a category and updates the relevant widgets to show it.
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*/
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void SettingsDialog::showCategory(OptionCategory *category)
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{
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if(category) {
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if(m_currentCategory != category) {
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m_currentCategory = category;
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m_ui->headingLabel->setText(category->displayName());
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}
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} else {
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m_currentCategory = nullptr;
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m_ui->headingLabel->setText(tr("No category selected"));
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}
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updateTabWidget();
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}
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/*!
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* \brief Updates the tab widget to show the pages for the current category.
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*/
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void SettingsDialog::updateTabWidget()
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{
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if(m_currentCategory) {
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m_ui->pagesTabWidget->setUpdatesEnabled(false);
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QString searchKeyWord = m_ui->filterLineEdit->text();
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int index = 0;
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foreach(OptionPage *page, m_currentCategory->pages()) {
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if(page->matches(searchKeyWord)) {
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QScrollArea *scrollArea;
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if(index < m_ui->pagesTabWidget->count()) {
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scrollArea = qobject_cast<QScrollArea *>(m_ui->pagesTabWidget->widget(index));
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scrollArea->takeWidget();
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m_ui->pagesTabWidget->setTabText(index, page->displayName());
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} else {
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scrollArea = new QScrollArea(m_ui->pagesTabWidget);
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scrollArea->setFrameStyle(QFrame::NoFrame);
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scrollArea->setBackgroundRole(QPalette::Base);
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scrollArea->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
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scrollArea->setWidgetResizable(true);
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m_ui->pagesTabWidget->addTab(scrollArea, page->displayName());
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}
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if(page->widget()->layout()) {
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page->widget()->layout()->setAlignment(Qt::AlignTop | Qt::AlignLeft);
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}
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scrollArea->setWidget(page->widget());
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}
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++index;
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}
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while(index < m_ui->pagesTabWidget->count()) {
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QScrollArea *scrollArea = qobject_cast<QScrollArea *>(m_ui->pagesTabWidget->widget(index));
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scrollArea->takeWidget();
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m_ui->pagesTabWidget->removeTab(index);
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delete scrollArea;
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}
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m_ui->pagesTabWidget->tabBar()->setHidden(!m_tabBarAlwaysVisible && m_ui->pagesTabWidget->count() == 1);
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m_ui->pagesTabWidget->setUpdatesEnabled(true);
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} else {
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m_ui->pagesTabWidget->clear();
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}
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}
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/*!
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* \brief Applies all changes. Calls OptionCategory::applyAllPages() for each category.
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*/
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bool SettingsDialog::apply()
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{
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foreach(OptionCategory *category, m_categoryModel->categories()) {
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foreach(OptionPage *page, category->pages()) {
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if(!page->apply()) {
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return false;
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}
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}
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}
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emit applied();
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return true;
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}
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/*!
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* \brief Resets all changes. Calls OptionCategory::resetAllPages() for each category.
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*/
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void SettingsDialog::reset()
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{
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foreach(OptionCategory *category, m_categoryModel->categories()) {
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category->resetAllPages();
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}
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emit resetted();
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}
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}
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