Create a proper ObjectListModel

Eventually we want to load multiple LGBs at once (and categorize objects
further, of course) so we need an actual tree model.

apps/mapeditor/CMakeLists.txt

@@ -10,6 +10,7 @@ target_sources(novus-mapeditor
         include/objectpass.h
         include/objectlistwidget.h
         include/appstate.h
+        include/objectlistmodel.h
 
         src/main.cpp
         src/mainwindow.cpp
@@ -17,7 +18,8 @@ target_sources(novus-mapeditor
         src/mapview.cpp
         src/objectpass.cpp
         src/objectlistwidget.cpp
-        src/appstate.cpp)
+        src/appstate.cpp
+        src/objectlistmodel.cpp)
 target_include_directories(novus-mapeditor
         PUBLIC
         include)

apps/mapeditor/include/objectlistmodel.h

@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: 2025 Joshua Goins <josh@redstrate.com>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <QAbstractItemModel>
+
+class AppState;
+
+enum class TreeType {
+    /// Root of the tree
+    Root,
+    /// LGB file
+    File,
+    /// A single object
+    Object,
+};
+
+struct TreeInformation {
+    TreeType type;
+    TreeInformation *parent = nullptr;
+    int row = 0;
+    QString name;
+
+    std::vector<TreeInformation *> children;
+};
+
+class ObjectListModel : public QAbstractItemModel
+{
+    Q_OBJECT
+
+public:
+    explicit ObjectListModel(AppState *appState, QObject *parent = nullptr);
+
+    int rowCount(const QModelIndex &parent) const override;
+    int columnCount(const QModelIndex &parent) const override;
+
+    QModelIndex index(int row, int column, const QModelIndex &parent) const override;
+    QModelIndex parent(const QModelIndex &child) const override;
+
+    QVariant data(const QModelIndex &index, int role) const override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
+
+private:
+    void refresh();
+
+    AppState *m_appState = nullptr;
+    TreeInformation *m_rootItem = nullptr;
+};

apps/mapeditor/include/objectlistwidget.h

@@ -3,10 +3,11 @@
 
 #pragma once
 
-#include <QListView>
+#include <QTreeView>
 #include <QWidget>
 #include <physis.hpp>
 
+class ObjectListModel;
 class QStringListModel;
 class AppState;
 
@@ -18,9 +19,7 @@ public:
     explicit ObjectListWidget(AppState *appState, QWidget *parent = nullptr);
 
 private:
-    void refresh();
-
-    QListView *listWidget = nullptr;
-    AppState *m_appState;
-    QStringListModel *m_originalModel;
+    QTreeView *treeWidget = nullptr;
+    AppState *m_appState = nullptr;
+    ObjectListModel *m_objectListModel = nullptr;
 };

apps/mapeditor/src/objectlistmodel.cpp

@@ -0,0 +1,132 @@
+// SPDX-FileCopyrightText: 2025 Joshua Goins <josh@redstrate.com>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "objectlistmodel.h"
+#include "appstate.h"
+
+#include <KLocalizedString>
+
+ObjectListModel::ObjectListModel(AppState *appState, QObject *parent)
+    : QAbstractItemModel(parent)
+    , m_appState(appState)
+{
+    m_rootItem = new TreeInformation();
+    m_rootItem->type = TreeType::Root;
+
+    connect(m_appState, &AppState::mapLoaded, this, &ObjectListModel::refresh);
+}
+
+int ObjectListModel::rowCount(const QModelIndex &parent) const
+{
+    TreeInformation *parentItem;
+    if (parent.column() > 0)
+        return 0;
+
+    if (!parent.isValid())
+        parentItem = m_rootItem;
+    else
+        parentItem = static_cast<TreeInformation *>(parent.internalPointer());
+
+    return static_cast<int>(parentItem->children.size());
+}
+
+int ObjectListModel::columnCount(const QModelIndex &parent) const
+{
+    Q_UNUSED(parent)
+    return 1;
+}
+
+QModelIndex ObjectListModel::index(int row, int column, const QModelIndex &parent) const
+{
+    if (!hasIndex(row, column, parent))
+        return {};
+
+    TreeInformation *parentItem;
+
+    if (!parent.isValid())
+        parentItem = m_rootItem;
+    else
+        parentItem = static_cast<TreeInformation *>(parent.internalPointer());
+
+    TreeInformation *childItem = parentItem->children[row];
+    if (childItem)
+        return createIndex(row, column, childItem);
+    return {};
+}
+
+QModelIndex ObjectListModel::parent(const QModelIndex &index) const
+{
+    if (!index.isValid())
+        return {};
+
+    auto childItem = static_cast<TreeInformation *>(index.internalPointer());
+    TreeInformation *parentItem = childItem->parent;
+
+    if (parentItem == m_rootItem)
+        return {};
+
+    return createIndex(parentItem->row, 0, parentItem);
+}
+
+QVariant ObjectListModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid())
+        return {};
+
+    auto item = static_cast<TreeInformation *>(index.internalPointer());
+
+    if (item->type == TreeType::File) {
+        if (role == Qt::DisplayRole) {
+            return item->name;
+        }
+    } else if (item->type == TreeType::Object) {
+        if (role == Qt::DisplayRole) {
+            return item->name;
+        }
+    }
+
+    return {};
+}
+
+QVariant ObjectListModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if (role == Qt::DisplayRole && orientation == Qt::Horizontal) {
+        if (section == 0) {
+            return i18nc("@title:column Object id", "Id");
+        }
+    }
+
+    return QAbstractItemModel::headerData(section, orientation, role);
+}
+
+void ObjectListModel::refresh()
+{
+    beginResetModel();
+
+    auto fileItem = new TreeInformation();
+    fileItem->type = TreeType::File;
+    fileItem->parent = m_rootItem;
+    fileItem->name = QStringLiteral("bg");
+    m_rootItem->children.push_back(fileItem);
+
+    for (int i = 0; i < m_appState->bgGroup.num_chunks; i++) {
+        const auto chunk = m_appState->bgGroup.chunks[i];
+        for (int j = 0; j < chunk.num_layers; j++) {
+            const auto layer = chunk.layers[j];
+            for (int z = 0; z < layer.num_objects; z++) {
+                const auto object = layer.objects[z];
+                const QString name = QString::fromLatin1(object.name);
+
+                auto objectItem = new TreeInformation();
+                objectItem->type = TreeType::Object;
+                objectItem->parent = fileItem;
+                objectItem->name = i18n("Unknown (%1)", object.instance_id); // TODO: do display names if we have them
+                objectItem->row = z;
+                fileItem->children.push_back(objectItem);
+            }
+        }
+    }
+    endResetModel();
+}
+
+#include "moc_objectlistmodel.cpp"

apps/mapeditor/src/objectlistwidget.cpp

@@ -10,6 +10,7 @@
 #include <QVBoxLayout>
 
 #include "appstate.h"
+#include "objectlistmodel.h"
 
 ObjectListWidget::ObjectListWidget(AppState *appState, QWidget *parent)
     : QWidget(parent)
@@ -25,7 +26,7 @@ ObjectListWidget::ObjectListWidget(AppState *appState, QWidget *parent)
     searchModel->setFilterCaseSensitivity(Qt::CaseSensitivity::CaseInsensitive);
 
     auto searchEdit = new QLineEdit();
-    searchEdit->setWhatsThis(i18nc("@info:whatsthis", "Search box for Excel sheet names."));
+    searchEdit->setWhatsThis(i18nc("@info:whatsthis", "Search box for objects."));
     searchEdit->setPlaceholderText(i18nc("@info:placeholder", "Search…"));
     searchEdit->setClearButtonEnabled(true);
     searchEdit->setProperty("_breeze_borders_sides", QVariant::fromValue(QFlags{Qt::BottomEdge}));
@@ -34,39 +35,14 @@ ObjectListWidget::ObjectListWidget(AppState *appState, QWidget *parent)
     });
     layout->addWidget(searchEdit);
 
-    m_originalModel = new QStringListModel();
-    searchModel->setSourceModel(m_originalModel);
+    m_objectListModel = new ObjectListModel(appState, this);
+    searchModel->setSourceModel(m_objectListModel);
 
-    listWidget = new QListView();
-    listWidget->setWhatsThis(i18nc("@info:whatsthis", "A list of Excel sheet names. Select one to view it's contents."));
-    listWidget->setModel(searchModel);
+    treeWidget = new QTreeView();
+    treeWidget->setWhatsThis(i18nc("@info:whatsthis", "A list of objects on this map."));
+    treeWidget->setModel(searchModel);
 
-    layout->addWidget(listWidget);
-
-    connect(m_appState, &AppState::mapLoaded, this, &ObjectListWidget::refresh);
-}
-
-void ObjectListWidget::refresh()
-{
-    QStringList list;
-
-    for (int i = 0; i < m_appState->bgGroup.num_chunks; i++) {
-        const auto chunk = m_appState->bgGroup.chunks[i];
-        for (int j = 0; j < chunk.num_layers; j++) {
-            const auto layer = chunk.layers[j];
-            for (int z = 0; z < layer.num_objects; z++) {
-                const auto object = layer.objects[z];
-                const QString name = QString::fromLatin1(object.name);
-                if (true) { // TODO: do display names if we have them
-                    list << i18n("Unknown (%1)", object.instance_id);
-                } else {
-                    list << name;
-                }
-            }
-        }
-    }
-
-    m_originalModel->setStringList(list);
+    layout->addWidget(treeWidget);
 }
 
 #include "moc_objectlistwidget.cpp"