New Settings export and command-line load

Allows exporting settings in XML file and launch vimix from command line with given XML filename as argument to restore all settings and windows configuration.

docs/notes.txt

@@ -38,3 +38,17 @@ Mac OSX specificities
   enter "/Users/[username]/Library/Application Support/vimix" and delete the folder 'vimix'
 
 -
+
+
+Testing performance
+-------------------
+
+Linux perf command
+- Allow perf on your system
+sudo sysctl -w kernel.perf_event_paranoid=-1
+- Launch command to record
+perf record ./vimix
+perf record --pid=XXXXX
+- Analyse using https://github.com/KDAB/hotspot
+
+

docs/vimix.1

@@ -37,6 +37,14 @@ and exit.
 .BR \-F ", " \-\^\-fontsize N
 Set interface font size to specified value N.
 
+.TP
+.BR \-S ", " \-\^\-settings settingsfile.xml
+Run using the given settings file.
+
+.TP
+.BR \-L ", " \-\^\-headless
+Run without graphical user interface (only if output windows are configured).
+
 .TP
 .BR \-C ", " \-\^\-clean
 Clean the user stored preferences of

src/Settings.cpp

@@ -69,7 +69,7 @@ XMLElement *save_knownhost(Settings::KnownHosts &h, const char *nodename, XMLDoc
 
 
 
-void Settings::Save(uint64_t runtime)
+void Settings::Save(uint64_t runtime, const std::string &filename)
 {
     // impose C locale for all app
     setlocale(LC_ALL, "C");
@@ -332,7 +332,8 @@ void Settings::Save(uint64_t runtime)
     if (settingsFilename.empty())
         settingsFilename = SystemToolkit::full_filename(SystemToolkit::settings_path(), APP_SETTINGS);
 
-    XMLError eResult = xmlDoc.SaveFile(settingsFilename.c_str());
+    XMLError eResult = xmlDoc.SaveFile( filename.empty() ?
+                                           settingsFilename.c_str() : filename.c_str());
     XMLResultError(eResult);
 
 }
@@ -395,7 +396,7 @@ void load_knownhost(Settings::KnownHosts &h, const char *nodename, XMLElement *r
     }
 }
 
-void Settings::Load()
+void Settings::Load(const string &filename)
 {
     // impose C locale for all app
     setlocale(LC_ALL, "C");
@@ -406,7 +407,8 @@ void Settings::Load()
 
     // try to load settings file
     XMLDocument xmlDoc;
-    XMLError eResult = xmlDoc.LoadFile(settingsFilename.c_str());
+    XMLError eResult = xmlDoc.LoadFile( filename.empty() ?
+                                           settingsFilename.c_str() : filename.c_str());
 
 	// do not warn if non existing file
     if (eResult == XML_ERROR_FILE_NOT_FOUND)

src/Settings.h

@@ -390,8 +390,8 @@ struct Application
 extern Application application;
 
 // Save and Load store settings in XML file
-void Save(uint64_t runtime = 0);
+void Save(uint64_t runtime = 0, const std::string &filename = "");
-void Load();
+void Load(const std::string &filename = "");
 void Lock();
 void Unlock();
 void Check();

src/UserInterfaceManager.cpp

@@ -222,6 +222,8 @@ bool UserInterface::Init(int font_size)
                                                           VIMIX_FILE_TYPE, VIMIX_FILE_PATTERN);
     sessionimportdialog = new DialogToolkit::OpenFileDialog("Import Sources",
                                                             VIMIX_FILE_TYPE, VIMIX_FILE_PATTERN);
+    settingsexportdialog = new DialogToolkit::SaveFileDialog("Export settings",
+                                                             SETTINGS_FILE_TYPE, SETTINGS_FILE_PATTERN);
 
     // init tooltips
     ImGuiToolkit::setToolTipsEnabled(Settings::application.show_tooptips);
@@ -880,6 +882,10 @@ void UserInterface::NewFrame()
     if (sessionsavedialog && sessionsavedialog->closed() && !sessionsavedialog->path().empty())
         Mixer::manager().saveas(sessionsavedialog->path(), Settings::application.save_version_snapshot);
 
+    if (settingsexportdialog && settingsexportdialog->closed()
+        && !settingsexportdialog->path().empty())
+        Settings::Save(0, settingsexportdialog->path());
+
     // overlay to ensure file dialog is modal
     if (DialogToolkit::FileDialog::busy()){
         if (!ImGui::IsPopupOpen("Busy"))
@@ -1187,7 +1193,7 @@ void UserInterface::showMenuFile()
 
     ImGui::MenuItem( MENU_SAVE_ON_EXIT, nullptr, &Settings::application.recentSessions.save_on_exit);
 
-    // HELP AND QUIT
+    // QUIT
     ImGui::Separator();
     if (ImGui::MenuItem( MENU_QUIT, SHORTCUT_QUIT) && TryClose())
         Rendering::manager().close();
@@ -5418,6 +5424,17 @@ void Navigator::RenderMainPannelSettings()
     // Appearance
     //
     ImGui::Text("Settings");
+    ImGui::SameLine();
+    ImGui::SetCursorPosX( pannel_width_ IMGUI_RIGHT_ALIGN);
+    if ( ImGuiToolkit::IconButton(ICON_FA_SAVE,"Export settings\nYou can then "
+                                               "launch vimix with the option "
+                                               "'--settings filename.xml' "
+                                               "to restore output windows and configuration.") ){
+        // launch file dialog to select file to save settings
+        if (UserInterface::manager().settingsexportdialog)
+            UserInterface::manager().settingsexportdialog->open();
+    }
+
     int v = Settings::application.accent_color;
     ImGui::Spacing();
     ImGui::SetCursorPosX(0.5f * width_);

src/UserInterfaceManager.h

@@ -202,6 +202,7 @@ protected:
     DialogToolkit::OpenFileDialog *sessionopendialog;
     DialogToolkit::OpenFileDialog *sessionimportdialog;
     DialogToolkit::SaveFileDialog *sessionsavedialog;
+    DialogToolkit::SaveFileDialog *settingsexportdialog;
 
     // Favorites and playlists
     Playlist favorites;

src/defines.h

@@ -42,6 +42,12 @@
     { \
         "*.srt", "*.sub" \
     }
+#define SETTINGS_FILE_TYPE "vimix settings (XML)"
+#define SETTINGS_FILE_EXT "xml"
+#define SETTINGS_FILE_PATTERN \
+{ \
+        "*.xml" \
+}
 #define MINI(a, b)  (((a) < (b)) ? (a) : (b))
 #define MAXI(a, b)  (((a) > (b)) ? (a) : (b))
 #define ABS(a)	   (((a) < 0) ? -(a) : (a))
@@ -173,6 +179,7 @@
 #define MENU_SAVE_ON_EXIT     ICON_FA_LEVEL_DOWN_ALT "  Save on exit"
 #define MENU_OPEN_ON_START    ICON_FA_LEVEL_UP_ALT "  Restore on start"
 #define SHORTCUT_SAVEAS_FILE  CTRL_MOD "Shift+S"
+#define MENU_EXPORT_SETTINGS  ICON_FA_FILE_EXCEL "  Export settings"
 #define MENU_QUIT             ICON_FA_POWER_OFF "  Quit"
 #define SHORTCUT_QUIT         CTRL_MOD "Q"
 #define MENU_CUT              ICON_FA_CUT "  Cut"

src/main.cpp

@@ -71,6 +71,7 @@ int main(int argc, char *argv[])
     int headlessRequested = 0;
     int helpRequested = 0;
     int fontsizeRequested = 0;
+    std::string settingsRequested;
     int ret = -1;
 
     for (int i = 1; i < argc; ++i) {
@@ -82,6 +83,15 @@ int main(int argc, char *argv[])
             cleanRequested = 1;
         } else if (strcmp(argv[i], "--headless") == 0 || strcmp(argv[i], "-L") == 0) {
             headlessRequested = 1;
+        } else if (strcmp(argv[i], "--settings") == 0 || strcmp(argv[i], "-S") == 0) {
+            // get settings file argument
+            if (i + 1 < argc) {
+                settingsRequested = argv[i + 1]; // Parse next argument as integer
+                i++; // Skip the next argument since it's already processed
+            } else {
+                fprintf(stderr, "Error: filename missing after --settings\n");
+                helpRequested = 1;
+            }
         } else if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-H") == 0) {
             helpRequested = 1;
         } else if (strcmp(argv[i], "--fontsize") == 0 || strcmp(argv[i], "-F") == 0) {
@@ -135,15 +145,19 @@ int main(int argc, char *argv[])
     }
 
     if (helpRequested) {
-        printf("Usage: %s [-H, --help] [-V, --version] [-F N, --fontsize N] [-L, --headless] [-T, --test] [-C, --clean] [filename]\n",
+        printf("Usage: %s [-H, --help] [-V, --version] [-F, --fontsize] [-L, --headless]\n"
+               "               [-S, --settings] [-T, --test] [-C, --clean] [filename]\n",
                argv[0]);
         printf("Options:\n");
         printf("  --help       : Display usage information\n");
         printf("  --version    : Display version information\n");
-        printf("  --fontsize N : Force rendering font size to specified value N\n");
+        printf("  --fontsize   : Force rendering font size to specified value, e.g., '-F 25'\n");
-        printf("  --headless   : Run without GUI\n");
+        printf("  --settings   : Run with given settings file, e.g., '-S settingsfile.xml'\n");
-        printf("  --test       : Run rendering test\n");
+        printf("  --headless   : Run without GUI (only if output windows configured)\n");
+        printf("  --test       : Run rendering test and return\n");
         printf("  --clean      : Reset user settings\n");
+        printf("Filename:\n");
+        printf("  vimix session file (.mix extension)\n");
         ret = 0;ret = 0;
     }
 
@@ -156,7 +170,7 @@ int main(int argc, char *argv[])
     ///
     /// Settings
     ///
-    Settings::Load();
+    Settings::Load( settingsRequested );
     Settings::application.executable = std::string(argv[0]);
 
     /// lock to inform an instance is running