Add autocomplete to the "Start default character at" field

apps/launcher/CMakeLists.txt

@@ -8,6 +8,7 @@ set(LAUNCHER
     settingspage.cpp
     advancedpage.cpp
 
+    utils/cellnameloader.cpp
     utils/profilescombobox.cpp
     utils/textinputdialog.cpp
     utils/lineedit.cpp
@@ -24,6 +25,7 @@ set(LAUNCHER_HEADER
     settingspage.hpp
     advancedpage.hpp
 
+    utils/cellnameloader.hpp
     utils/profilescombobox.hpp
     utils/textinputdialog.hpp
     utils/lineedit.hpp
@@ -39,6 +41,7 @@ set(LAUNCHER_HEADER_MOC
     settingspage.hpp
     advancedpage.hpp
 
+    utils/cellnameloader.hpp
     utils/textinputdialog.hpp
     utils/profilescombobox.hpp
     utils/lineedit.hpp

apps/launcher/advancedpage.cpp

@@ -1,7 +1,12 @@
 #include "advancedpage.hpp"
 
 #include <components/config/gamesettings.hpp>
+#include <components/config/launchersettings.hpp>
+#include <apps/launcher/utils/cellnameloader.hpp>
 #include <QFileDialog>
+#include <QCompleter>
+#include <components/contentselector/view/contentselector.hpp>
+#include <components/contentselector/model/esmfile.hpp>
 
 Launcher::AdvancedPage::AdvancedPage(Files::ConfigurationManager &cfg,
                                      Config::GameSettings &gameSettings,
@@ -17,6 +22,19 @@ Launcher::AdvancedPage::AdvancedPage(Files::ConfigurationManager &cfg,
     loadSettings();
 }
 
+void Launcher::AdvancedPage::loadCellsForAutocomplete(QStringList filePaths) {
+    CellNameLoader cellNameLoader;
+    QStringList cellNamesList = QStringList::fromSet(cellNameLoader.getCellNames(filePaths));
+    std::sort(cellNamesList.begin(), cellNamesList.end());
+
+    // Set up an auto-completer for the "Start default character at" field
+    auto *completer = new QCompleter(cellNamesList);
+    completer->setCompletionMode(QCompleter::PopupCompletion);
+    completer->setCaseSensitivity(Qt::CaseSensitivity::CaseInsensitive);
+    startDefaultCharacterAtField->setCompleter(completer);
+
+}
+
 void Launcher::AdvancedPage::on_skipMenuCheckBox_stateChanged(int state) {
     startDefaultCharacterAtLabel->setEnabled(state == Qt::Checked);
     startDefaultCharacterAtField->setEnabled(state == Qt::Checked);

apps/launcher/advancedpage.hpp

@@ -23,6 +23,12 @@ namespace Launcher
         bool loadSettings();
         void saveSettings();
 
+        /**
+         * Load the cells associated with the given content files for use in autocomplete
+         * @param filePaths the file paths of the content files to be examined
+         */
+        void loadCellsForAutocomplete(QStringList filePaths);
+
     private slots:
         void on_skipMenuCheckBox_stateChanged(int state);
         void on_runScriptAfterStartupBrowseButton_clicked();

apps/launcher/datafilespage.cpp

@@ -142,6 +142,17 @@ void Launcher::DataFilesPage::saveSettings(const QString &profile)
     mGameSettings.setContentList(fileNames);
 }
 
+QStringList Launcher::DataFilesPage::selectedFilePaths()
+{
+    //retrieve the files selected for the profile
+    ContentSelectorModel::ContentFileList items = mSelector->selectedFiles();
+    QStringList filePaths;
+    foreach(const ContentSelectorModel::EsmFile *item, items) {
+        filePaths.append(item->filePath());
+    }
+    return filePaths;
+}
+
 void Launcher::DataFilesPage::removeProfile(const QString &profile)
 {
     mLauncherSettings.removeContentList(profile);

apps/launcher/datafilespage.hpp

@@ -41,6 +41,12 @@ namespace Launcher
         void saveSettings(const QString &profile = "");
         bool loadSettings();
 
+        /**
+         * Returns the file paths of all selected content files
+         * @return the file paths of all selected content files
+         */
+        QStringList selectedFilePaths();
+
     signals:
         void signalProfileChanged (int index);
 

apps/launcher/maindialog.cpp

@@ -125,6 +125,9 @@ void Launcher::MainDialog::createPages()
     mPlayPage->setProfilesModel(mDataFilesPage->profilesModel());
     mPlayPage->setProfilesIndex(mDataFilesPage->profilesIndex());
 
+    // Load cells for the "Start default character at" field
+    mAdvancedPage->loadCellsForAutocomplete(mDataFilesPage->selectedFilePaths());
+
     // Add the pages to the stacked widget
     pagesWidget->addWidget(mPlayPage);
     pagesWidget->addWidget(mDataFilesPage);

apps/launcher/utils/cellnameloader.cpp

@@ -0,0 +1,48 @@
+#include "cellnameloader.hpp"
+
+#include <components/esm/loadcell.hpp>
+#include <components/contentselector/view/contentselector.hpp>
+
+QSet<QString> CellNameLoader::getCellNames(QStringList &contentPaths)
+{
+    QSet<QString> cellNames;
+    ESM::ESMReader esmReader;
+
+    // Loop through all content files
+    for (auto &contentPath : contentPaths) {
+        esmReader.open(contentPath.toStdString());
+
+        // Loop through all records
+        while(esmReader.hasMoreRecs())
+        {
+            ESM::NAME recordName = esmReader.getRecName();
+            esmReader.getRecHeader();
+
+            if (isCellRecord(recordName)) {
+                QString cellName = getCellName(esmReader);
+                if (!cellName.isEmpty()) {
+                    cellNames.insert(cellName);
+                }
+            }
+
+            // Stop loading content for this record and continue to the next
+            esmReader.skipRecord();
+        }
+    }
+
+    return cellNames;
+}
+
+bool CellNameLoader::isCellRecord(ESM::NAME &recordName)
+{
+    return recordName.intval == ESM::REC_CELL;
+}
+
+QString CellNameLoader::getCellName(ESM::ESMReader &esmReader)
+{
+    ESM::Cell cell;
+    bool isDeleted = false;
+    cell.loadNameAndData(esmReader, isDeleted);
+
+    return QString::fromStdString(cell.mName);
+}

apps/launcher/utils/cellnameloader.hpp

@@ -0,0 +1,41 @@
+#ifndef OPENMW_CELLNAMELOADER_H
+#define OPENMW_CELLNAMELOADER_H
+
+#include <QComboBox>
+#include <QSet>
+#include <QString>
+
+#include <components/esm/esmreader.hpp>
+
+namespace ESM {class ESMReader; struct Cell;}
+namespace ContentSelectorView {class ContentSelector;}
+
+class CellNameLoader {
+
+public:
+
+    /**
+     * Returns the names of all cells contained within the given content files
+     * @param contentPaths the file paths of each content file to be examined
+     * @return the names of all cells
+     */
+    QSet<QString> getCellNames(QStringList &contentPaths);
+
+private:
+    /**
+     * Returns whether or not the given record is of type "Cell"
+     * @param name The name associated with the record
+     * @return whether or not the given record is of type "Cell"
+     */
+    bool isCellRecord(ESM::NAME &name);
+
+    /**
+     * Returns the name of the cell
+     * @param esmReader the reader currently pointed to a loaded cell
+     * @return the name of the cell
+     */
+    QString getCellName(ESM::ESMReader &esmReader);
+};
+
+
+#endif //OPENMW_CELLNAMELOADER_H