add sort for changedate

Mods/vcmi/Sprites/lobby/selectionTabSortDate.json

@@ -0,0 +1,7 @@
+{
+	"basepath" : "lobby/",
+	"images" :
+	[
+		{ "frame" : 0, "file" : "selectionTabSortDate.png"}
+	]
+}

Mods/vcmi/config/vcmi/english.json

@@ -70,6 +70,7 @@
 	"vcmi.lobby.mapPreview" : "Map preview",
 	"vcmi.lobby.noPreview" : "no preview",
 	"vcmi.lobby.noUnderground" : "no underground",
+	"vcmi.lobby.sortDate" : "Sorts maps by change date",
 
 	"vcmi.client.errors.missingCampaigns" : "{Missing data files}\n\nCampaigns data files were not found! You may be using incomplete or corrupted Heroes 3 data files. Please reinstall game data.",
 	"vcmi.server.errors.existingProcess" : "Another VCMI server process is running. Please terminate it before starting a new game.",

Mods/vcmi/config/vcmi/german.json

@@ -70,6 +70,7 @@
 	"vcmi.lobby.mapPreview" : "Kartenvorschau",
 	"vcmi.lobby.noPreview" : "Keine Vorschau",
 	"vcmi.lobby.noUnderground" : "Kein Untergrund",
+	"vcmi.lobby.sortDate" : "Ordnet Karten nach Änderungsdatum",
 
 	"vcmi.server.errors.existingProcess" : "Es läuft ein weiterer vcmiserver-Prozess, bitte beendet diesen zuerst",
 	"vcmi.server.errors.modsToEnable"    : "{Erforderliche Mods um das Spiel zu laden}",

client/lobby/SelectionTab.cpp

@@ -110,6 +110,8 @@ bool mapSorter::operator()(const std::shared_ptr<ElementInfo> aaa, const std::sh
 			return boost::ilexicographical_compare(a->name.toString(), b->name.toString());
 		case _fileName: //by filename
 			return boost::ilexicographical_compare(aaa->fileURI, bbb->fileURI);
+		case _changeDate: //by changedate
+			return aaa->lastWrite < bbb->lastWrite;
 		default:
 			return boost::ilexicographical_compare(a->name.toString(), b->name.toString());
 		}
@@ -149,9 +151,11 @@ SelectionTab::SelectionTab(ESelectionScreen Type)
 	: CIntObject(LCLICK | SHOW_POPUP | KEYBOARD | DOUBLECLICK), callOnSelect(nullptr), tabType(Type), selectionPos(0), sortModeAscending(true), inputNameRect{32, 539, 350, 20}, curFolder(""), currentMapSizeFilter(0), showRandom(false)
 {
 	OBJ_CONSTRUCTION;
-
+		
 	generalSortingBy = getSortBySelectionScreen(tabType);
 
+	bool enableUiEnhancements = settings["general"]["enableUiEnhancements"].Bool();
+
 	if(tabType != ESelectionScreen::campaignList)
 	{
 		sortingBy = _format;
@@ -208,6 +212,12 @@ SelectionTab::SelectionTab(ESelectionScreen Type)
 		break;
 	}
 
+	if(enableUiEnhancements)
+	{
+		buttonsSortBy.push_back(std::make_shared<CButton>(Point(371, 85), AnimationPath::builtin("lobby/selectionTabSortDate"), CButton::tooltip("", CGI->generaltexth->translate("vcmi.lobby.sortDate")), std::bind(&SelectionTab::sortBy, this, ESortBy::_changeDate)));
+		buttonsSortBy.back()->setAnimateLonelyFrame(true);
+	}
+
 	iconsMapFormats = GH.renderHandler().loadAnimation(AnimationPath::builtin("SCSELC.DEF"));
 	iconsVictoryCondition = GH.renderHandler().loadAnimation(AnimationPath::builtin("SCNRVICT.DEF"));
 	iconsLossCondition = GH.renderHandler().loadAnimation(AnimationPath::builtin("SCNRLOSS.DEF"));
@@ -215,7 +225,7 @@ SelectionTab::SelectionTab(ESelectionScreen Type)
 		listItems.push_back(std::make_shared<ListItem>(Point(30, 129 + i * 25), iconsMapFormats, iconsVictoryCondition, iconsLossCondition));
 
 	labelTabTitle = std::make_shared<CLabel>(205, 28, FONT_MEDIUM, ETextAlignment::CENTER, Colors::YELLOW, tabTitle);
-	slider = std::make_shared<CSlider>(Point(372, 86), tabType != ESelectionScreen::saveGame ? 480 : 430, std::bind(&SelectionTab::sliderMove, this, _1), positionsToShow, (int)curItems.size(), 0, Orientation::VERTICAL, CSlider::BLUE);
+	slider = std::make_shared<CSlider>(Point(372, 86 + (enableUiEnhancements ? 30 : 0)), (tabType != ESelectionScreen::saveGame ? 480 : 430) - (enableUiEnhancements ? 30 : 0), std::bind(&SelectionTab::sliderMove, this, _1), positionsToShow, (int)curItems.size(), 0, Orientation::VERTICAL, CSlider::BLUE);
 	slider->setPanningStep(24);
 
 	// create scroll bounds that encompass all area in this UI element to the left of slider (including area of slider itself)

client/lobby/SelectionTab.h

@@ -23,7 +23,7 @@ class IImage;
 
 enum ESortBy
 {
-	_playerAm, _size, _format, _name, _viccon, _loscon, _numOfMaps, _fileName
+	_playerAm, _size, _format, _name, _viccon, _loscon, _numOfMaps, _fileName, _changeDate
 }; //_numOfMaps is for campaigns
 
 class ElementInfo : public CMapInfo

lib/mapping/CMapInfo.cpp

@@ -64,8 +64,8 @@ void CMapInfo::saveInit(const ResourcePath & file)
 	originalFileURI = file.getOriginalName();
 	fullFileURI = boost::filesystem::canonical(*CResourceHandler::get()->getResourceName(file)).string();
 	countPlayers();
-	std::time_t time = boost::filesystem::last_write_time(*CResourceHandler::get()->getResourceName(file));
-	date = TextOperations::getFormattedDateTimeLocal(time);
+	lastWrite = boost::filesystem::last_write_time(*CResourceHandler::get()->getResourceName(file));
+	date = TextOperations::getFormattedDateTimeLocal(lastWrite);
 
 	// We absolutely not need this data for lobby and server will read it from save
 	// FIXME: actually we don't want them in CMapHeader!

lib/mapping/CMapInfo.h

@@ -28,8 +28,9 @@ public:
 	std::unique_ptr<Campaign> campaign; //may be nullptr if scenario
 	StartInfo * scenarioOptionsOfSave; // Options with which scenario has been started (used only with saved games)
 	std::string fileURI;
-	std::string originalFileURI;
-	std::string fullFileURI;
+	std::string originalFileURI; // no need to serialize
+	std::string fullFileURI; // no need to serialize
+	std::time_t lastWrite; // no need to serialize
 	std::string date;
 	int amountOfPlayersOnMap;
 	int amountOfHumanControllablePlayers;