Added optional mods dialog

Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>

launcher/ui/pages/modplatform/OptionalModDialog.cpp

@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (c) 2023 Trial97 <alexandru.tripon97@gmail.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "OptionalModDialog.h"
+#include "ui_OptionalModDialog.h"
+
+OptionalModListModel::OptionalModListModel(QWidget* parent, QStringList mods) : QAbstractListModel(parent), m_mods(mods) {}
+
+QStringList OptionalModListModel::getResult()
+{
+    QStringList result;
+    for (const auto& mod : m_mods) {
+        if (m_selected.value(mod, false)) {
+            result << mod;
+        }
+    }
+    return result;
+}
+
+int OptionalModListModel::rowCount(const QModelIndex& parent) const
+{
+    return parent.isValid() ? 0 : m_mods.size();
+}
+
+int OptionalModListModel::columnCount(const QModelIndex& parent) const
+{
+    // Enabled, Name
+    return parent.isValid() ? 0 : 2;
+}
+
+QVariant OptionalModListModel::data(const QModelIndex& index, int role) const
+{
+    auto row = index.row();
+    auto mod = m_mods.at(row);
+
+    if (role == Qt::DisplayRole && index.column() == NameColumn) {
+        return mod;
+    } else if (role == Qt::CheckStateRole && index.column() == EnabledColumn) {
+        return m_selected.value(mod, false) ? Qt::Checked : Qt::Unchecked;
+    }
+
+    return {};
+}
+
+bool OptionalModListModel::setData(const QModelIndex& index, [[maybe_unused]] const QVariant& value, int role)
+{
+    if (role == Qt::CheckStateRole) {
+        auto row = index.row();
+        auto mod = m_mods.at(row);
+
+        toggleMod(mod, row);
+        return true;
+    }
+
+    return false;
+}
+
+QVariant OptionalModListModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if (role == Qt::DisplayRole && orientation == Qt::Horizontal) {
+        switch (section) {
+            case EnabledColumn:
+                return QString();
+            case NameColumn:
+                return QString("Name");
+        }
+    }
+
+    return {};
+}
+
+Qt::ItemFlags OptionalModListModel::flags(const QModelIndex& index) const
+{
+    auto flags = QAbstractListModel::flags(index);
+    if (index.isValid() && index.column() == EnabledColumn) {
+        flags |= Qt::ItemIsUserCheckable;
+    }
+    return flags;
+}
+
+void OptionalModListModel::toggleAll(bool enabled)
+{
+    for (const auto& mod : m_mods) {
+        m_selected[mod] = enabled;
+    }
+
+    emit dataChanged(OptionalModListModel::index(0, EnabledColumn), OptionalModListModel::index(m_mods.size() - 1, EnabledColumn));
+}
+
+void OptionalModListModel::toggleMod(QString mod, int index)
+{
+    auto enable = !m_selected.value(mod, false);
+
+    setMod(mod, index, enable);
+}
+
+void OptionalModListModel::setMod(QString mod, int index, bool enable, bool shouldEmit)
+{
+    if (m_selected.value(mod, false) == enable)
+        return;
+
+    m_selected[mod] = enable;
+
+    if (shouldEmit) {
+        emit dataChanged(OptionalModListModel::index(index, EnabledColumn), OptionalModListModel::index(index, EnabledColumn));
+    }
+}
+
+OptionalModDialog::OptionalModDialog(QWidget* parent, QStringList mods) : QDialog(parent), ui(new Ui::OptionalModDialog)
+{
+    ui->setupUi(this);
+
+    listModel = new OptionalModListModel(this, mods);
+    ui->treeView->setModel(listModel);
+
+    ui->treeView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    ui->treeView->header()->setSectionResizeMode(OptionalModListModel::NameColumn, QHeaderView::Stretch);
+
+    connect(ui->selectAllButton, &QPushButton::clicked, listModel, &OptionalModListModel::selectAll);
+    connect(ui->clearAllButton, &QPushButton::clicked, listModel, &OptionalModListModel::clearAll);
+    connect(ui->installButton, &QPushButton::clicked, this, &QDialog::accept);
+    connect(ui->cancelButton, &QPushButton::clicked, this, &QDialog::reject);
+}
+
+OptionalModDialog::~OptionalModDialog()
+{
+    delete ui;
+}