Qt: Setting to show filename in title bar instead of ROM name. (#1807)

* All: Setting to display the file name of the currently loaded ROM instead of the game name in the title bar (closes mgba.io/i/1784)

* Utilize ConfigController getOption method and restructured to not use dynamically allocated memory for the temporary title

* Grab actual path name, use getOption to avoid having to modify the core, update CHANGES file, and moved core declaration to condense code.

* Change CHANGES text

* Qt: Simplify settings UI for PR

Co-authored-by: Vicki Pfau <vi@endrift.com>

CHANGES

@@ -36,6 +36,7 @@ Misc:
  - Qt: Add hex index to palette view
  - Qt: Add transformation matrix info to sprite view
  - Qt: Add per-page scrolling to memory view (fixes mgba.io/i/1795)
+ - Qt: Add setting to display ROM filename in title (closes mgba.io/i/1784)
 
 0.8.2: (2020-06-14)
 Emulation fixes:

src/platform/qt/SettingsView.cpp

@@ -400,6 +400,7 @@ void SettingsView::updateConfig() {
 	saveSetting("showFps", m_ui.showFps);
 	saveSetting("cheatAutoload", m_ui.cheatAutoload);
 	saveSetting("cheatAutosave", m_ui.cheatAutosave);
+	saveSetting("showFilename", m_ui.showFilename);
 	saveSetting("autoload", m_ui.autoload);
 	saveSetting("autosave", m_ui.autosave);
 	saveSetting("logToFile", m_ui.logToFile);
@@ -574,6 +575,7 @@ void SettingsView::reloadConfig() {
 	loadSetting("showFps", m_ui.showFps, true);
 	loadSetting("cheatAutoload", m_ui.cheatAutoload, true);
 	loadSetting("cheatAutosave", m_ui.cheatAutosave, true);
+	loadSetting("showFilename", m_ui.showFilename, false);
 	loadSetting("autoload", m_ui.autoload, true);
 	loadSetting("autosave", m_ui.autosave, false);
 	loadSetting("logToFile", m_ui.logToFile);

src/platform/qt/SettingsView.ui

@@ -586,21 +586,21 @@
          </property>
         </widget>
        </item>
-       <item row="13" column="1">
+       <item row="14" column="1">
         <widget class="QCheckBox" name="useDiscordPresence">
          <property name="text">
           <string>Enable Discord Rich Presence</string>
          </property>
         </widget>
        </item>
-       <item row="14" column="0" colspan="2">
+       <item row="15" column="0" colspan="2">
         <widget class="Line" name="line_13">
          <property name="orientation">
           <enum>Qt::Horizontal</enum>
          </property>
         </widget>
        </item>
-       <item row="15" column="1">
+       <item row="16" column="1">
         <widget class="QCheckBox" name="autosave">
          <property name="text">
           <string>Automatically save state</string>
@@ -610,7 +610,7 @@
          </property>
         </widget>
        </item>
-       <item row="16" column="1">
+       <item row="17" column="1">
         <widget class="QCheckBox" name="autoload">
          <property name="text">
           <string>Automatically load state</string>
@@ -620,14 +620,14 @@
          </property>
         </widget>
        </item>
-       <item row="17" column="0" colspan="2">
+       <item row="18" column="0" colspan="2">
         <widget class="Line" name="line_16">
          <property name="orientation">
           <enum>Qt::Horizontal</enum>
          </property>
         </widget>
        </item>
-       <item row="18" column="1">
+       <item row="19" column="1">
         <widget class="QCheckBox" name="cheatAutosave">
          <property name="text">
           <string>Automatically save cheats</string>
@@ -637,7 +637,7 @@
          </property>
         </widget>
        </item>
-       <item row="19" column="1">
+       <item row="20" column="1">
         <widget class="QCheckBox" name="cheatAutoload">
          <property name="text">
           <string>Automatically load cheats</string>
@@ -647,7 +647,7 @@
          </property>
         </widget>
        </item>
-       <item row="12" column="1">
+       <item row="13" column="1">
         <widget class="QCheckBox" name="showOSD">
          <property name="text">
           <string>Show OSD messages</string>
@@ -657,6 +657,16 @@
          </property>
         </widget>
        </item>
+       <item row="12" column="1">
+        <widget class="QCheckBox" name="showFilename">
+         <property name="text">
+          <string>Show filename instead of ROM name in title bar</string>
+         </property>
+         <property name="checked">
+          <bool>true</bool>
+         </property>
+        </widget>
+       </item>
       </layout>
      </widget>
      <widget class="QWidget" name="emulation">

src/platform/qt/Window.cpp

@@ -1030,18 +1030,25 @@ void Window::updateTitle(float fps) {
 		const NoIntroDB* db = GBAApp::app()->gameDB();
 		NoIntroGame game{};
 		uint32_t crc32 = 0;
-		m_controller->thread()->core->checksum(m_controller->thread()->core, &crc32, CHECKSUM_CRC32);
-
-		char gameTitle[17] = { '\0' };
 		mCore* core = m_controller->thread()->core;
-		core->getGameTitle(core, gameTitle);
-		title = gameTitle;
+		core->checksum(m_controller->thread()->core, &crc32, CHECKSUM_CRC32);
+		QString filePath = windowFilePath();
+
+		if (m_config->getOption("showFilename").toInt() && !filePath.isNull()) {
+			QFileInfo fileInfo(filePath);
+			title = fileInfo.fileName();
+		} else {
+			char gameTitle[17] = { '\0' };
+			core->getGameTitle(core, gameTitle);
+			title = gameTitle;
 
 #ifdef USE_SQLITE3
-		if (db && crc32 && NoIntroDBLookupGameByCRC(db, crc32, &game)) {
-			title = QLatin1String(game.name);
-		}
+			if (db && crc32 && NoIntroDBLookupGameByCRC(db, crc32, &game)) {
+				title = QLatin1String(game.name);
+			}
 #endif
+		}
+		
 		MultiplayerController* multiplayer = m_controller->multiplayerController();
 		if (multiplayer && multiplayer->attached() > 1) {
 			title += tr(" -  Player %1 of %2").arg(multiplayer->playerId(m_controller.get()) + 1).arg(multiplayer->attached());