ui: added universal font size setting and shortcuts for changing it

This change adds font size and font family to the ApplicationSettings to have a single point for manipulating them. The
font size can also be changed via the menu or the zoomIn and zoomOut shortcuts on all platforms.

src/lib/settings/ApplicationSettings.cpp

@@ -26,6 +26,26 @@ bool ApplicationSettings::filterUndefinedNodesFromGraph() const
 	return getValue<bool>("FilterUndefinedNodesFromGraph", false);
 }
 
+std::string ApplicationSettings::getFontName() const
+{
+	return getValue<std::string>("application/font_name", "Source Code Pro");
+}
+
+void ApplicationSettings::setFontName(const std::string& fontName)
+{
+	setValue<std::string>("application/font_name", fontName);
+}
+
+int ApplicationSettings::getFontSize() const
+{
+	return getValue<int>("application/font_size", 14);
+}
+
+void ApplicationSettings::setFontSize(int fontSize)
+{
+	setValue<int>("application/font_size", fontSize);
+}
+
 int ApplicationSettings::getCodeTabWidth() const
 {
 	return getValue<int>("code/TabWidth", 4);
@@ -36,26 +56,6 @@ void ApplicationSettings::setCodeTabWidth(int codeTabWidth)
 	setValue<int>("code/TabWidth", codeTabWidth);
 }
 
-std::string ApplicationSettings::getCodeFontName() const
-{
-	return getValue<std::string>("code/FontName", "Courier");
-}
-
-void ApplicationSettings::setCodeFontName(const std::string& codeFontName)
-{
-	setValue<std::string>("code/FontName", codeFontName);
-}
-
-int ApplicationSettings::getCodeFontSize() const
-{
-	return getValue<int>("code/FontSize", 12);
-}
-
-void ApplicationSettings::setCodeFontSize(int codeFontSize)
-{
-	setValue<int>("code/FontSize", codeFontSize);
-}
-
 int ApplicationSettings::getCodeSnippetSnapRange() const
 {
 	return getValue<int>("code/snippet/snap_range", 4);

src/lib/settings/ApplicationSettings.h

@@ -19,16 +19,17 @@ public:
 	std::string getStartupProjectFilePath() const;
 	bool filterUndefinedNodesFromGraph() const;
 
+	// application
+	std::string getFontName() const;
+	void setFontName(const std::string& fontName);
+
+	int getFontSize() const;
+	void setFontSize(int fontSize);
+
 	// code
 	int getCodeTabWidth() const;
 	void setCodeTabWidth(int codeTabWidth);
 
-	std::string getCodeFontName() const;
-	void setCodeFontName(const std::string& codeFontName);
-
-	int getCodeFontSize() const;
-	void setCodeFontSize(int codeFontSize);
-
 	int getCodeSnippetSnapRange() const;
 	void setCodeSnippetSnapRange(int range);
 

src/lib/settings/Settings.cpp

@@ -14,16 +14,29 @@ bool Settings::load(const std::string& filePath)
 	if (FileSystem::exists(filePath))
 	{
 		m_config = ConfigManager::createAndLoad(TextAccess::createFromFile(filePath));
+		m_filePath = filePath;
 		return true;
 	}
 	else
 	{
-		m_config = ConfigManager::createEmpty();
+		clear();
 		LOG_WARNING("File for Settings not found.");
 		return false;
 	}
 }
 
+void Settings::save()
+{
+	if (m_config.get() && m_filePath.size())
+	{
+		m_config->save(m_filePath);
+	}
+	else
+	{
+		LOG_WARNING("Settings were not saved.");
+	}
+}
+
 void Settings::save(const std::string& filePath)
 {
 	if (m_config)
@@ -39,6 +52,7 @@ void Settings::save(const std::string& filePath)
 void Settings::clear()
 {
 	m_config = ConfigManager::createEmpty();
+	m_filePath.clear();
 }
 
 Settings::Settings()

src/lib/settings/Settings.h

@@ -13,6 +13,7 @@ public:
 	virtual ~Settings();
 
 	bool load(const std::string& filePath);
+	void save();
 	void save(const std::string& filePath);
 	void clear();
 
@@ -32,6 +33,7 @@ protected:
 	bool setValues(const std::string& key, std::vector<T> values);
 
 private:
+	std::string m_filePath;
 	std::shared_ptr<ConfigManager> m_config;
 };