main_settings_widget.cpp

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#include "gui/settings/assigned_keybind_map.h"
#include "gui/settings/main_settings_widget.h"
#include "gui/settings/settings_items/settings_item_keybind.h"
#include "gui/settings/settings_manager.h"
 
#include "gui/expanding_list/expanding_list_button.h"
#include "gui/expanding_list/expanding_list_widget.h"
#include "gui/gui_globals.h"
//#include "checkbox_setting.h"
//#include "dropdown_setting.h"
#include "gui/settings/settings_widgets/settings_widget.h"
//#include "spinbox_setting.h"
//#include "text_setting.h"
#include "gui/searchbar/searchbar.h"
 
#include <QFrame>
#include <QHBoxLayout>
#include <QHeaderView>
#include <QMessageBox>
#include <QPushButton>
#include <QScrollArea>
#include <QScrollBar>
#include <QVBoxLayout>
#include <QTextEdit>
 
namespace hal
{
    MainSettingsList::~MainSettingsList()
    {
        for (SettingsWidget* widget : *this)
            delete widget;
    }
 
    void MainSettingsList::registerWidget(const QString& sectionName, SettingsWidget* widget)
    {
        append(widget);
        mSectionMap[sectionName].append(widget);
    }
 
    void MainSettingsList::clearAll()
    {
         for (SettingsWidget* widget : *this)
            widget->clearEditor();
    }
 
    QList<const SettingsItem*> MainSettingsList::getItems() const
    {
        QList<const SettingsItem*> retval;
        for (SettingsWidget* widget : *this)
            retval.append(widget->settingsItem());
        return retval;
    }
 
    void MainSettingsList::unregisterWidget(SettingsWidget* widget)
    {
        for (auto it = mSectionMap.begin(); it != mSectionMap.end(); ++it)
        {
            auto jt = it->begin();
            while (jt != it->end())
                if (*jt == widget)
                    jt = it->erase(jt);
                else
                    ++jt;
        }
        int n = removeAll(widget);
        if (n > 0)
        {
            widget->close();
            widget->deleteLater();
        }
    }
 
    QStringList MainSettingsList::emptySections() const
    {
        QStringList retval;
        for (auto it = mSectionMap.constBegin(); it != mSectionMap.constEnd(); ++it)
            if (it.value().isEmpty())
                retval.append(it.key());
        return retval;
    }
 
    MainSettingsWidget::MainSettingsWidget(QWidget* parent)
        : QWidget(parent), mLayout(new QHBoxLayout()), mExpandingListWidget(new ExpandingListWidget()), mVerticalLayout(new QVBoxLayout()), mScrollbar(new QScrollBar()),
          mScrollArea(new QScrollArea()), mContent(new QFrame()),
          mContentLayout(new QHBoxLayout()), mSettingsContainer(new QFrame()),
          mContainerLayout(new QVBoxLayout()), mButtonLayout(new QHBoxLayout()),
          mDescriptionText(new QTextEdit(this)), mRestoreDefaults(new QPushButton()),
          mCancel(new QPushButton()), mOk(new QPushButton())
    {
        mSearchbarContainer = new QFrame(this);
        mSearchbarLayout = new QHBoxLayout();
        mSearchbar = new Searchbar(mSearchbarContainer);
 
 
        setWindowModality(Qt::ApplicationModal);
 
        setLayout(mLayout);
        mLayout->setContentsMargins(0, 0, 0, 0);
        mLayout->setSpacing(0);
        mLayout->addWidget(mExpandingListWidget);
        mLayout->addLayout(mVerticalLayout);
        //mLayout->addWidget(mScrollbar);
 
        mVerticalLayout->setContentsMargins(0, 0, 0, 0);
        mVerticalLayout->setSpacing(0);
        mVerticalLayout->addWidget(mSearchbarContainer);
 
        mSearchbarContainer->setObjectName("Searchbar-container");
        mSearchbarContainer->setLayout(mSearchbarLayout);
        mSearchbarLayout->setContentsMargins(0, 0, 0, 0);
        mSearchbarLayout->setSpacing(0);
        mSearchbarLayout->addWidget(mSearchbar);
 
        mScrollArea->setFrameStyle(QFrame::NoFrame);
        mVerticalLayout->addWidget(mScrollArea);
 
        mContent->setFrameStyle(QFrame::NoFrame);
 
        mContentLayout->setAlignment(Qt::AlignHCenter | Qt::AlignTop);
        mContentLayout->setContentsMargins(0, 0, 0, 0);
        mContentLayout->setSpacing(0);
        mContent->setLayout(mContentLayout);
 
        mScrollArea->setWidget(mContent);
        mScrollArea->setWidgetResizable(true);
 
        mSettingsContainer->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
        mSettingsContainer->setFrameStyle(QFrame::NoFrame);
 
        mContainerLayout->setAlignment(Qt::AlignLeft);
        mContainerLayout->setContentsMargins(0, 0, 0, 0);
        mContainerLayout->setSpacing(0);
        mSettingsContainer->setLayout(mContainerLayout);
 
        mContentLayout->addWidget(mSettingsContainer);
 
        mButtonLayout->setContentsMargins(10, 10, 10, 10);
        mButtonLayout->setSpacing(20);
        mButtonLayout->setAlignment(Qt::AlignRight);
 
        mDescriptionText->setMaximumHeight(120);
        mVerticalLayout->addWidget(mDescriptionText);
 
        mVerticalLayout->addLayout(mButtonLayout);
 
        mRestoreDefaults->setText("Restore default values for all settings");
        mRestoreDefaults->setToolTip("Clear user preferences for this page");
        mCancel->setText("Cancel");
        mOk->setText("OK");
        mRestoreDefaults->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
        mCancel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
        mOk->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
 
        QWidget* spacer = new QWidget();
        spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
 
        mButtonLayout->addWidget(mRestoreDefaults, Qt::AlignLeft);
        mButtonLayout->addWidget(spacer);
        mButtonLayout->addWidget(mCancel, Qt::AlignRight);
        mButtonLayout->addWidget(mOk, Qt::AlignRight);
 
        connect(mRestoreDefaults, &QPushButton::clicked, this, &MainSettingsWidget::handleRestoreDefaultsClicked);
        connect(mCancel, &QPushButton::clicked, this, &MainSettingsWidget::handleCancelClicked);
        connect(mOk, &QPushButton::clicked, this, &MainSettingsWidget::handleOkClicked);
 
        connect(mExpandingListWidget, &ExpandingListWidget::buttonSelected, this, &MainSettingsWidget::handleButtonSelected);
        connect(mSearchbar, &Searchbar::triggerNewSearch, this, &MainSettingsWidget::searchSettings);
    }
 
    void MainSettingsWidget::initWidgets()
    {
        AssignedKeybindMap::instance()->initMap();
        QSet<const SettingsItem*> registeredItems = QSet<const SettingsItem*>::fromList(mSettingsList.getItems());
        QSet<QString> registeredCategories = QSet<QString>::fromList(mSectionNames.values());
        for (SettingsItem* si : SettingsManager::instance()->mSettingsList)
        {
            if (registeredItems.contains(si))
                continue;
 
            QString catg = si->category();
            if (catg.isEmpty()) catg = "Other";
            if (!registeredCategories.contains(catg))
            {
                makeSection(catg);
                registeredCategories.insert(catg);
            }
 
            SettingsWidget* widget = si->editWidget();
            connect(widget,&SettingsWidget::triggerDescriptionUpdate,this,&MainSettingsWidget::handleDescriptionUpdate);
            connect(widget,&SettingsWidget::triggerRemoveWidget,this,&MainSettingsWidget::handleWidgetRemove);
            mSettingsList.registerWidget(catg,widget);
            registeredItems.insert(si);
            mContainerLayout->addWidget(widget);
        }
 
        // show only buttons with non-empty sections
        for (ExpandingListButton* btn : mSectionNames.keys())
            btn->show();
        for (QString sectionName : mSettingsList.emptySections() )
        {
            for (auto it = mSectionNames.begin(); it!= mSectionNames.end(); ++it)
                if (it.value() == sectionName)
                    it.key()->hide();
        }
    }
 
    void MainSettingsWidget::makeSection(const QString& label)
    {
        int colon = label.indexOf(':');
        QString topLabel;
        QString subLabel;
        int level = 0;
        if (colon<0)
            subLabel = label;
        else
        {
            topLabel = label.left(colon);
            subLabel = label.mid(colon+1);
            if (!mExpandingListWidget->hasGroup(topLabel))
            {
                ExpandingListButton* topBtn = new ExpandingListButton(0);
                topBtn->setObjectName(topLabel);
                topBtn->setText(topLabel);
                topBtn->setDefaultIcon(topLabel);
                mExpandingListWidget->appendItem(topBtn);
                mSectionNames.insert(topBtn,topLabel);
            }
            level = 1;
        }
        ExpandingListButton* btn = new ExpandingListButton(level);
        btn->setObjectName(subLabel);
        btn->setText(subLabel);
        btn->setDefaultIcon(subLabel);
        //btn->setIconPath(iconPath);
        mExpandingListWidget->appendItem(btn,topLabel);
        mSectionNames.insert(btn, label);
    }
 
    void MainSettingsWidget::handleWidgetRemove(SettingsWidget* widget)
    {
        mContainerLayout->removeWidget(widget);
        mSettingsList.unregisterWidget(widget);
    }
 
    bool MainSettingsWidget::handleAboutToClose()
    {
        bool dirty = false;
        for (SettingsWidget* widget : mSettingsList)
        {
            if (widget->dirty())
            {
                dirty = true;
                break;
            }
        }
        if (dirty)
        {
            QMessageBox::StandardButton input = QMessageBox::question(this, "Unsaved settings", "You have unsaved settings that would be discarded.\nSave before leaving the settings page?", QMessageBox::Yes|QMessageBox::No|QMessageBox::Cancel);
            if (input == QMessageBox::Cancel)
                return false;
            if (input == QMessageBox::Yes)
                return saveSettings();
//            if (input == QMessageBox::No)
//                rollbackSettings();
        }
        return true;
    }
 
    void MainSettingsWidget::handleRestoreDefaultsClicked()
    {
        for (SettingsWidget* widget : mSettingsList)
        {
            widget->handleSetDefaultValue(true);
        }
    }
 
    void MainSettingsWidget::handleCancelClicked()
    {
        Q_EMIT close();
    }
 
    void MainSettingsWidget::handleOkClicked()
    {
        saveSettings();
        Q_EMIT close();
    }
 
    void MainSettingsWidget::activate()
    {
        initWidgets();
 
        mExpandingListWidget->selectFirstItem();
        mExpandingListWidget->repolish();
 
        mSettingsList.clearAll();
 
        for (SettingsWidget* widget : mSettingsList)
        {
            if (widget)
                widget->loadCurrentValue();
        }
    }
 
    void MainSettingsWidget::handleDescriptionUpdate(SettingsItem* activeSettingsItem)
    {
        if (!activeSettingsItem)
        {
            mDescriptionText->clear();
            return;
        }
        QString html = QString("<html><body><h3>%1</h3><p>%2</p></body></html>")
                .arg(activeSettingsItem->label()).arg(activeSettingsItem->description());
        mDescriptionText->setHtml(html);
    }
 
    void MainSettingsWidget::handleButtonSelected(ExpandingListButton* button)
    {
        mResetToFirstElement = false;
        mResetToFirstElement = true;
 
        hideAllSettings();
//        removeAllHighlights();
 
        if (!button) return;
 
        QString sectionName  = mSectionNames.value(button);
        mActiveSection       = sectionName;
        QList<SettingsWidget*> widgetList = mSettingsList.section(sectionName);
 
        for (SettingsWidget* widget : widgetList)
        {
            if (widget)
                widget->show();
        }
    }
 
    void MainSettingsWidget::hideAllSettings()
    {
        for (SettingsWidget* widget : mSettingsList)
            widget->hide();
    }
 
    void MainSettingsWidget::showAllSettings()
    {
        for (ExpandingListButton* but : mSectionNames.keys())
            but->setSelected(false);
        for (SettingsWidget* widget : mSettingsList)
            widget->show();
    }
 
    void MainSettingsWidget::searchSettings(const QString& needle, SearchOptions searchOpts)
    {
        mSearchOptions = searchOpts;
        mActiveSection.clear();
        if (mExpandingListWidget)
            mExpandingListWidget->clearSelected();
        for (ExpandingListButton* but : mSectionNames.keys())
            but->setSelected(false);
        for (SettingsWidget* widget : mSettingsList)
            if (isMatching(needle, widget->getLabel()))
            {
                if (mActiveSection.isEmpty())
                    mActiveSection = widget->settingsItem()->label();
                widget->show();
            }
            else
                widget->hide();
    }
 
    bool MainSettingsWidget::saveSettings()
    {
        bool changed = false;
        for (SettingsWidget* widget : mSettingsList)
        {
            if (widget->dirty())
            {
                changed = true;
                widget->acceptValue();
            }
        }
        if (changed)
        {
            SettingsManager::instance()->persistUserSettings();
        }
        return true;
    }
 
    bool MainSettingsWidget::isMatching(QString searchString, QString stringToCheck)
    {
        if(!mSearchOptions.isExactMatch() && !mSearchOptions.isRegularExpression()){
            //check if stringToCheck contains the searchString
            return stringToCheck.contains(searchString, mSearchOptions.isCaseSensitive() ? Qt::CaseSensitive : Qt::CaseInsensitive);
        }
        else if(mSearchOptions.isExactMatch()){
            //check if the stringToCheck is the same as the searchString   - also checks CaseSensitivity
 
            return 0 == QString::compare(searchString, stringToCheck, mSearchOptions.isCaseSensitive() ? Qt::CaseSensitive : Qt::CaseInsensitive);
        }
        else if(mSearchOptions.isRegularExpression()){
            //checks if the stringToCheck matches the regEx given by searchString
            auto regEx = QRegularExpression(searchString, mSearchOptions.isCaseSensitive() ? QRegularExpression::NoPatternOption : QRegularExpression::CaseInsensitiveOption);
            return regEx.match(stringToCheck).hasMatch();
        }
        return false;
    }
}