add loading 100 at a time

Author: noisecode3

src/Data.hpp

@@ -92,56 +92,6 @@ struct ZipData {
     QString release;
 };
 
-/**
- * @struct ListItemData
- * @brief Represents a Tomb Raider Level Entry Card Info.
- *
- * This struct is designed to store a single TRLE (Tomb Raider Level Editor) level record.
- * Each record contains metadata and a cover image displayed as a card in the application.
- * The struct includes properties to facilitate searching, filtering, and sorting without
- * the cover image.
- */
-struct ListItemData {
-    /**
-     * @brief Default constructor for `ListItemData`.
-     *
-     * Initializes an empty instance of `ListItemData`.
-     */
-    ListItemData() {}
-
-    /**
-     * @brief Parameterized constructor for `ListItemData`.
-     *
-     * This constructor initializes a `ListItemData` object with metadata.
-     *
-     * @param id The TRLE numeric level ID.
-     * @param title The TRLE title. Expected to contain a single name.
-     * @param author The TRLE author(s). Can be a single name or multiple names.
-     * @param type The TRLE type, represented by a numeric ID.
-     * @param classInput The TRLE class, represented by a numeric ID.
-     * @param releaseDate The release date in the format "YYYY-MM-DD" (e.g., "2000-01-01").
-     * @param difficulty The TRLE difficulty, represented by a numeric ID.
-     * @param duration The TRLE duration, represented by a numeric ID.
-     */
-    ListItemData(
-        qint64 id, const QString& title, const QStringList& authors, qint64 type,
-        qint64 classInput, const QString& releaseDate, qint64 difficulty,
-        qint64 duration) :
-        m_trle_id(id), m_title(title), m_authors(authors), m_type(type),
-        m_class(classInput), m_releaseDate(releaseDate),
-        m_difficulty(difficulty), m_duration(duration) {}
-
-    // Data members
-    qint64 m_trle_id;        ///< The TRLE level id.
-    QString m_title;         ///< The TRLE level title.
-    QStringList m_authors;     ///< The TRLE author(s), as a string list.
-    qint64 m_type;           ///< ID of the type of level.
-    qint64 m_class;          ///< ID of the class of the level.
-    QString m_releaseDate;   ///< The release date in "YYYY-MM-DD" format.
-    qint64 m_difficulty;     ///< ID of the difficulty of the level.
-    qint64 m_duration;       ///< ID of the estimated duration of the level.
-};
-
 /**
  * @struct ListItemPicture
  * @brief Represents a Tomb Raider Level Entry Card Picture.
@@ -210,6 +160,60 @@ struct ListItemPicture {
     QIcon m_picture;         ///< The cover image.
 };
 
+/**
+ * @struct ListItemData
+ * @brief Represents a Tomb Raider Level Entry Card Info.
+ *
+ * This struct is designed to store a single TRLE (Tomb Raider Level Editor) level record.
+ * Each record contains metadata and a cover image displayed as a card in the application.
+ * The struct includes properties to facilitate searching, filtering, and sorting without
+ * the cover image, just a pointer.
+ */
+struct ListItemData {
+    /**
+     * @brief Default constructor for `ListItemData`.
+     *
+     * Initializes an empty instance of `ListItemData`.
+     */
+    ListItemData() {}
+
+    /**
+     * @brief Parameterized constructor for `ListItemData`.
+     *
+     * This constructor initializes a `ListItemData` object with metadata.
+     *
+     * @param id The TRLE numeric level ID.
+     * @param title The TRLE title. Expected to contain a single name.
+     * @param author The TRLE author(s). Can be a single name or multiple names.
+     * @param type The TRLE type, represented by a numeric ID.
+     * @param classInput The TRLE class, represented by a numeric ID.
+     * @param releaseDate The release date in the format "YYYY-MM-DD" (e.g., "2000-01-01").
+     * @param difficulty The TRLE difficulty, represented by a numeric ID.
+     * @param duration The TRLE duration, represented by a numeric ID.
+     * @param m_cover The cover image as a `ListItemPicture*`.
+     */
+    ListItemData(
+        qint64 id, const QString& title, const QStringList& authors,
+        qint64 type, qint64 classInput, const QString& releaseDate,
+        qint64 difficulty, qint64 duration) :
+        m_trle_id(id), m_title(title), m_authors(authors), m_type(type),
+        m_class(classInput), m_releaseDate(releaseDate),
+        m_difficulty(difficulty), m_duration(duration) {
+            m_cover = nullptr;
+        }
+
+    // Data members
+    qint64 m_trle_id;        ///< The TRLE level id.
+    QString m_title;         ///< The TRLE level title.
+    QStringList m_authors;   ///< The TRLE author(s), as a string list.
+    qint64 m_type;           ///< ID of the type of level.
+    qint64 m_class;          ///< ID of the class of the level.
+    QString m_releaseDate;   ///< The release date in "YYYY-MM-DD" format.
+    qint64 m_difficulty;     ///< ID of the difficulty of the level.
+    qint64 m_duration;       ///< ID of the estimated duration of the level.
+    ListItemPicture* m_cover;   ///< The TRLE cover image pointer.
+};
+
 /**
  * @struct InfoData
  * @brief Store HTML data and a list of icons generated from image WEBP data.

src/TombRaiderLinuxLauncher.cpp

@@ -11,7 +11,6 @@
  * GNU General Public License for more details.
  */
 
-#include <algorithm>
 #include "../src/TombRaiderLinuxLauncher.hpp"
 #include "ui_TombRaiderLinuxLauncher.h"
 #include "../src/staticData.hpp"
@@ -123,6 +122,9 @@ TombRaiderLinuxLauncher::TombRaiderLinuxLauncher(QWidget *parent)
         this,
         &TombRaiderLinuxLauncher::onCurrentItemChanged);
 
+    connect(ui->listViewLevels->verticalScrollBar(), &QScrollBar::valueChanged,
+            this, &TombRaiderLinuxLauncher::loadMoreLevels);
+
     // Read settings
     QString value = m_settings.value("setup").toString();
     if (value != "yes") {
@@ -136,6 +138,13 @@ void TombRaiderLinuxLauncher::generateList(const QList<int>& availableGames) {
     model->setLevels();
 }
 
+void TombRaiderLinuxLauncher::loadMoreLevels(int value) {
+    QScrollBar *bar = ui->listViewLevels->verticalScrollBar();
+    if (value >= bar->maximum() - 5) {
+        qDebug() << "loadMoreLevels";
+        model->loadMoreLevels();
+    }
+}
 
 void TombRaiderLinuxLauncher::sortByTitle() {
     model->sortItems(model->compareTitles);

src/TombRaiderLinuxLauncher.hpp

@@ -18,6 +18,7 @@
 #include <QSettings>
 #include <QMessageBox>
 #include <QScrollArea>
+#include <QScrollBar>
 #include <QVBoxLayout>
 #include <QStringList>
 #include <QSet>
@@ -90,6 +91,7 @@ class TombRaiderLinuxLauncher : public QMainWindow {
     /**
      * Sorts the list by author.
      */
+    void loadMoreLevels(int value);
     void sortByAuthor();
     /**
      * Sorts the list by title.

src/levelViewList.hpp

@@ -31,19 +31,26 @@ class LevelListModel : public QAbstractListModel {
         beginResetModel();
         infoList.clear();
         controller.getList(&infoList);
+        if (infoList.count() > 100) {
+            m_loadedRows = 100;
+            m_stop = false;
+        } else {
+            m_loadedRows = infoList.count();
+            m_stop = true;
+        }
         endResetModel();
     }
 
     int rowCount(const QModelIndex &parent = QModelIndex()) const override {
         Q_UNUSED(parent);
-        return infoList.count();
+        return m_loadedRows;
     }
 
     QVariant data(const QModelIndex &index, int role) const override {
         QVariant result;
         int row = index.row();
 
-        if (index.isValid() && row < infoList.size()) {
+        if (index.isValid() && row < infoList.count()) {
             const ListItemData &item = infoList.at(row);
             switch (role) {
                 case Qt::DisplayRole:
@@ -73,8 +80,20 @@ class LevelListModel : public QAbstractListModel {
         return item.m_trle_id;
     }
 
-    ListItemData getListItemData(const qint64 &index) {
-        return infoList.at(index);
+    void loadMoreLevels() {
+        if (!m_stop) {
+            // we stop to prevent extra call while in here.
+            m_stop = true;
+            beginResetModel();
+            if (infoList.count() > m_loadedRows + 100) {
+                m_loadedRows = m_loadedRows + 100;
+                m_stop = false;  // we have more
+            } else {
+                m_loadedRows = infoList.count();
+                m_stop = true;  // we have less or equal
+            }
+            endResetModel();
+        }
     }
 
     void sortItems(
@@ -115,6 +134,8 @@ class LevelListModel : public QAbstractListModel {
     QVector<ListItemData> infoList;
     QVector<ListItemPicture> pictureList;
     // QVector<ListOriginalData> originalInfoList;
+    bool m_stop = false;
+    qint64 m_loadedRows = 0;
     Controller& controller = Controller::getInstance();
 };