blame: src/preferencesdialog.cpp

#include "preferencesdialog.h"

#include "shortcutmanager.h"

#include <QVBoxLayout>

#include <QHBoxLayout>

#include <QLabel>

#include <QComboBox>

#include <QSpinBox>

#include <QCheckBox>

#include <QPushButton>

#include <QGroupBox>

#include <QTabWidget>

#include <QTableWidget>

#include <QKeySequenceEdit>

#include <QHeaderView>

PreferencesDialog::PreferencesDialog(QWidget *parent)

    : QDialog(parent)

{

    setWindowTitle("Preferences");

    setModal(true);

    setMinimumWidth(500);

    QVBoxLayout *mainLayout = new QVBoxLayout(this);

    QTabWidget *tabs = new QTabWidget(this);

    setupGeneralTab(tabs);

    setupShortcutsTab(tabs);

    mainLayout->addWidget(tabs);

    QHBoxLayout *buttonLayout = new QHBoxLayout;

    QPushButton *okButton = new QPushButton("OK");

    QPushButton *cancelButton = new QPushButton("Cancel");

    buttonLayout->addStretch();

    buttonLayout->addWidget(okButton);

    buttonLayout->addWidget(cancelButton);

    mainLayout->addLayout(buttonLayout);

    connect(okButton, &QPushButton::clicked, this, [this]() {

        if (m_resetLayoutCheck->isChecked())

            emit resetLayoutRequested();

        accept();

    });

    connect(cancelButton, &QPushButton::clicked, this, &QDialog::reject);

}

void PreferencesDialog::setupGeneralTab(QTabWidget *tabs)

{

    QWidget *page = new QWidget;

    QVBoxLayout *pageLayout = new QVBoxLayout(page);

    QGroupBox *imageGroup = new QGroupBox("Image Viewer", page);

    QVBoxLayout *groupLayout = new QVBoxLayout(imageGroup);

    QHBoxLayout *bgColorLayout = new QHBoxLayout;

    QLabel *bgColorLabel = new QLabel("Background Color:");

    m_backgroundColorCombo = new QComboBox;

    m_backgroundColorCombo->addItem("Black", "black");

    m_backgroundColorCombo->addItem("White", "white");

    m_backgroundColorCombo->addItem("Dark Gray", "darkgray");

    bgColorLayout->addWidget(bgColorLabel);

    bgColorLayout->addWidget(m_backgroundColorCombo);

    bgColorLayout->addStretch();

    groupLayout->addLayout(bgColorLayout);

    QHBoxLayout *cacheSizeLayout = new QHBoxLayout;

    QLabel *cacheSizeLabel = new QLabel("Folder thumbnail cache (folders):");

    m_cacheSizeSpinBox = new QSpinBox;

    m_cacheSizeSpinBox->setRange(1, 20);

    m_cacheSizeSpinBox->setValue(4);

    cacheSizeLayout->addWidget(cacheSizeLabel);

    cacheSizeLayout->addWidget(m_cacheSizeSpinBox);

    cacheSizeLayout->addStretch();

    groupLayout->addLayout(cacheSizeLayout);

    QHBoxLayout *thumbSizeLayout = new QHBoxLayout;

    QLabel *thumbSizeLabel = new QLabel("Thumbnail cache size:");

    m_thumbnailSizeCombo = new QComboBox;

    m_thumbnailSizeCombo->addItem("Normal (128 px)", "normal");

    m_thumbnailSizeCombo->addItem("Large (256 px)", "large");

    thumbSizeLayout->addWidget(thumbSizeLabel);

    thumbSizeLayout->addWidget(m_thumbnailSizeCombo);

    thumbSizeLayout->addStretch();

    groupLayout->addLayout(thumbSizeLayout);

    pageLayout->addWidget(imageGroup);

    QGroupBox *layoutGroup = new QGroupBox("Layout", page);

    QVBoxLayout *layoutGroupLayout = new QVBoxLayout(layoutGroup);

    m_lockDockingCheck = new QCheckBox("Lock docking (prevent accidental moves)");

    layoutGroupLayout->addWidget(m_lockDockingCheck);

    m_resetLayoutCheck = new QCheckBox("Reset layout to default when closing the menu");

    layoutGroupLayout->addWidget(m_resetLayoutCheck);

    pageLayout->addWidget(layoutGroup);

    pageLayout->addStretch();

    tabs->addTab(page, "General");

}

void PreferencesDialog::setupShortcutsTab(QTabWidget *tabs)

{

    QWidget *page = new QWidget;

    QVBoxLayout *pageLayout = new QVBoxLayout(page);

    // Count configurable actions to size the table (plus 2 section header rows)

    int configurableCount = 0;

    for (int i = 0; i < ShortcutManager::ActionCount; ++i) {

        if (ShortcutManager::actionCategory(static_cast<ShortcutManager::Action>(i))

            != ShortcutManager::CatNotConfigurable)

            ++configurableCount;

    }

    // +2 for section headers (Image Viewer, Browser)

    const int totalRows = configurableCount + 2;

    m_shortcutsTable = new QTableWidget(totalRows, 2, page);

    m_shortcutsTable->setHorizontalHeaderLabels({"Action", "Key"});

    m_shortcutsTable->horizontalHeader()->setStretchLastSection(true);

    m_shortcutsTable->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Stretch);

    m_shortcutsTable->verticalHeader()->hide();

    m_shortcutsTable->setSelectionMode(QAbstractItemView::SingleSelection);

    m_rowToAction.clear();

    const ShortcutManager &mgr = ShortcutManager::instance();

    int row = 0;

    auto addSectionHeader = [&](const QString &title) {

        auto *item = new QTableWidgetItem(title);

        item->setFlags(Qt::NoItemFlags);

        QFont f = item->font();

        f.setBold(true);

        item->setFont(f);

        item->setBackground(palette().alternateBase());

        m_shortcutsTable->setItem(row, 0, item);

        auto *emptyItem = new QTableWidgetItem();

        emptyItem->setFlags(Qt::NoItemFlags);

        emptyItem->setBackground(palette().alternateBase());

        m_shortcutsTable->setItem(row, 1, emptyItem);

        m_rowToAction.append(-1); // -1 = section header

        ++row;

    };

    auto addAction = [&](ShortcutManager::Action action) {

        auto *descItem = new QTableWidgetItem(mgr.description(action));

        descItem->setFlags(descItem->flags() & ~Qt::ItemIsEditable);

        m_shortcutsTable->setItem(row, 0, descItem);

        auto *edit = new QKeySequenceEdit(mgr.shortcut(action));

        edit->setMaximumSequenceLength(1);

        connect(edit, &QKeySequenceEdit::keySequenceChanged, this, [this]() {

            highlightConflicts();

        });

        m_shortcutsTable->setCellWidget(row, 1, edit);

        m_rowToAction.append(static_cast<int>(action));

        ++row;

    };

    // Image Viewer section

    addSectionHeader("Image Viewer");

    for (int i = 0; i < ShortcutManager::ActionCount; ++i) {

        auto action = static_cast<ShortcutManager::Action>(i);

        if (ShortcutManager::actionCategory(action) == ShortcutManager::CatImageViewer)

            addAction(action);

    }

    // Browser section

    addSectionHeader("Browser");

    for (int i = 0; i < ShortcutManager::ActionCount; ++i) {

        auto action = static_cast<ShortcutManager::Action>(i);

        if (ShortcutManager::actionCategory(action) == ShortcutManager::CatBrowser)

            addAction(action);

    }

    pageLayout->addWidget(m_shortcutsTable);

    QHBoxLayout *btnLayout = new QHBoxLayout;

    QPushButton *resetBtn = new QPushButton("Reset to Defaults");

    btnLayout->addStretch();

    btnLayout->addWidget(resetBtn);

    pageLayout->addLayout(btnLayout);

    connect(resetBtn, &QPushButton::clicked, this, [this]() {

        for (int r = 0; r < m_rowToAction.size(); ++r) {

            int actionIdx = m_rowToAction[r];

            if (actionIdx < 0)

                continue;

            auto *edit = qobject_cast<QKeySequenceEdit *>(

                m_shortcutsTable->cellWidget(r, 1));

            if (edit)

                edit->setKeySequence(ShortcutManager::defaultShortcut(

                    static_cast<ShortcutManager::Action>(actionIdx)));

        }

        highlightConflicts();

    });

    tabs->addTab(page, "Shortcuts");

}

void PreferencesDialog::highlightConflicts()

{

    // Group sequences by category, then detect conflicts within each category.

    // key: (category, sequenceString) → list of rows

    QMap<QPair<int,QString>, QList<int>> catSeqToRows;

    for (int r = 0; r < m_rowToAction.size(); ++r) {

        int actionIdx = m_rowToAction[r];

        if (actionIdx < 0)

            continue;

        auto *edit = qobject_cast<QKeySequenceEdit *>(

            m_shortcutsTable->cellWidget(r, 1));

        if (!edit)

            continue;

        QString s = edit->keySequence().toString();

        if (!s.isEmpty()) {

            int cat = ShortcutManager::actionCategory(

                static_cast<ShortcutManager::Action>(actionIdx));

            catSeqToRows[{cat, s}].append(r);

        }

    }

    // Reset all backgrounds

    for (int r = 0; r < m_rowToAction.size(); ++r) {

        if (m_rowToAction[r] < 0)

            continue;

        QTableWidgetItem *item = m_shortcutsTable->item(r, 0);

        if (item)

            item->setBackground(QBrush());

    }

    // Highlight conflicts (only within same category)

    for (auto it = catSeqToRows.cbegin(); it != catSeqToRows.cend(); ++it) {

        if (it.value().size() > 1) {

            for (int r : it.value()) {

                QTableWidgetItem *item = m_shortcutsTable->item(r, 0);

                if (item)

                    item->setBackground(QColor(255, 100, 100, 80));

            }

        }

    }

}

QMap<int, QKeySequence> PreferencesDialog::getShortcuts() const

{

    QMap<int, QKeySequence> map;

    for (int r = 0; r < m_rowToAction.size(); ++r) {

        int actionIdx = m_rowToAction[r];

        if (actionIdx < 0)

            continue;

        auto *edit = qobject_cast<QKeySequenceEdit *>(

            m_shortcutsTable->cellWidget(r, 1));

        if (edit)

            map[actionIdx] = edit->keySequence();

    }

    return map;

}

void PreferencesDialog::setShortcuts(const QMap<int, QKeySequence> &map)

{

    for (int r = 0; r < m_rowToAction.size(); ++r) {

        int actionIdx = m_rowToAction[r];

        if (actionIdx < 0)

            continue;

        if (!map.contains(actionIdx))

            continue;

        auto *edit = qobject_cast<QKeySequenceEdit *>(

            m_shortcutsTable->cellWidget(r, 1));

        if (edit)

            edit->setKeySequence(map[actionIdx]);

    }

    highlightConflicts();

}

QString PreferencesDialog::getBackgroundColor() const

{

    return m_backgroundColorCombo->currentData().toString();

}

void PreferencesDialog::setBackgroundColor(const QString &color)

{

    int index = m_backgroundColorCombo->findData(color);

    if (index >= 0)

        m_backgroundColorCombo->setCurrentIndex(index);

}

int PreferencesDialog::getCacheSize() const

{

    return m_cacheSizeSpinBox->value();

}

void PreferencesDialog::setCacheSize(int n)

{

    m_cacheSizeSpinBox->setValue(n);

}

QString PreferencesDialog::getThumbnailCacheSize() const

{

    return m_thumbnailSizeCombo->currentData().toString();

}

void PreferencesDialog::setThumbnailCacheSize(const QString &size)

{

    int index = m_thumbnailSizeCombo->findData(size);

    if (index >= 0)

        m_thumbnailSizeCombo->setCurrentIndex(index);

}

bool PreferencesDialog::getLockDocking() const

{

    return m_lockDockingCheck->isChecked();

}

void PreferencesDialog::setLockDocking(bool lock)

{

    m_lockDockingCheck->setChecked(lock);

}

bool PreferencesDialog::getResetLayout() const

{

    return m_resetLayoutCheck->isChecked();

}

void PreferencesDialog::setResetLayout(bool reset)

{

    m_resetLayoutCheck->setChecked(reset);

}