src: use wstring in tooltip and snippet

src/lib_gui/qt/element/QtCodeFileSingle.cpp

@@ -301,7 +301,7 @@ void QtCodeFileSingle::setFileData(const FileData& file)
 		m_currentFilePath = file.filePath;
 		m_titleBar->setMaximized();
 
-		if (file.title.size())
+		if (!file.title.empty())
 		{
 			titleButton->setProject(file.title);
 			titleButton->setIsComplete(true);

src/lib_gui/qt/element/QtCodeFileSingle.h

@@ -61,7 +61,7 @@ private:
 		FilePath filePath;
 		TimeStamp modificationTime;
 		bool isComplete = false;
-		std::string title;
+		std::wstring title;
 
 		QtCodeArea* area = nullptr;
 	};

src/lib_gui/qt/element/QtCodeFileTitleButton.cpp

@@ -82,17 +82,15 @@ void QtCodeFileTitleButton::setIsComplete(bool isComplete)
 	}
 }
 
-void QtCodeFileTitleButton::setProject(const std::string& name)
+void QtCodeFileTitleButton::setProject(const std::wstring& name)
 {
 	m_filePath = FilePath();
 
-	setText(name.c_str());
+	setText(QString::fromStdWString(name));
 	setToolTip("edit project");
 
-	std::string text = ResourcePaths::getGuiPath().str() + "code_view/images/edit.png";
-
 	setIcon(utility::colorizePixmap(
-		QPixmap(text.c_str()),
+		QPixmap(QString::fromStdWString(ResourcePaths::getGuiPath().concatenate(L"code_view/images/edit.png").wstr())),
 		ColorScheme::getInstance()->getColor("code/file/title/icon").c_str()
 	));
 }
@@ -131,7 +129,7 @@ void QtCodeFileTitleButton::updateFromOther(const QtCodeFileTitleButton* other)
 	}
 	else
 	{
-		setProject(other->text().toStdString());
+		setProject(other->text().toStdWString());
 	}
 
 	setModificationTime(other->m_modificationTime);

src/lib_gui/qt/element/QtCodeFileTitleButton.h

@@ -18,7 +18,7 @@ public:
 	void setFilePath(const FilePath& filePath);
 	void setModificationTime(const TimeStamp modificationTime);
 	void setIsComplete(bool isComplete);
-	void setProject(const std::string& name);
+	void setProject(const std::wstring& name);
 
 	void updateTexts();
 

src/lib_gui/qt/element/QtCodeSnippet.cpp

@@ -78,7 +78,7 @@ QtCodeSnippet::QtCodeSnippet(const CodeSnippetParams& params, QtCodeNavigator* n
 	layout->setAlignment(Qt::AlignTop);
 	setLayout(layout);
 
-	if (m_titleString.size() && !params.reduced)
+	if (!m_titleString.empty() && !params.reduced)
 	{
 		m_title = createScopeLine(layout);
 		if (m_titleId == 0) // title is a file path
@@ -87,7 +87,7 @@ QtCodeSnippet::QtCodeSnippet(const CodeSnippetParams& params, QtCodeNavigator* n
 		}
 		else
 		{
-			m_title->setText(m_titleString.c_str());
+			m_title->setText(QString::fromStdWString(m_titleString));
 		}
 		connect(m_title, &QPushButton::clicked, this, &QtCodeSnippet::clickedTitle);
 	}
@@ -95,7 +95,7 @@ QtCodeSnippet::QtCodeSnippet(const CodeSnippetParams& params, QtCodeNavigator* n
 	m_codeArea = new QtCodeArea(params.startLineNumber, params.code, params.locationFile, navigator, !params.reduced, this);
 	layout->addWidget(m_codeArea);
 
-	if (m_footerString.size())
+	if (!m_footerString.empty())
 	{
 		m_footer = createScopeLine(layout);
 		if (m_footerId == 0) // footer is a file path
@@ -104,7 +104,7 @@ QtCodeSnippet::QtCodeSnippet(const CodeSnippetParams& params, QtCodeNavigator* n
 		}
 		else
 		{
-			m_footer->setText(m_footerString.c_str());
+			m_footer->setText(QString::fromStdWString(m_footerString));
 		}
 		connect(m_footer, &QPushButton::clicked, this, &QtCodeSnippet::clickedFooter);
 	}

src/lib_gui/qt/element/QtCodeSnippet.h

@@ -64,10 +64,10 @@ private:
 	QtCodeFile* m_file;
 
 	Id m_titleId;
-	std::string m_titleString;
+	std::wstring m_titleString;
 
 	Id m_footerId;
-	std::string m_footerString;
+	std::wstring m_footerString;
 
 	std::vector<QPushButton*> m_dots;
 

src/lib_gui/qt/element/QtTooltip.cpp

@@ -34,7 +34,7 @@ void QtTooltip::setTooltipInfo(TooltipInfo info)
 {
 	if (info.title.size())
 	{
-		addTitle(info.title.c_str(), info.count, info.countText.c_str());
+		addTitle(QString::fromStdWString(info.title), info.count, info.countText.c_str());
 	}
 
 	for (TooltipSnippet& snippet : info.snippets)

src/lib_gui/qt/view/graphElements/QtGraphEdge.cpp

@@ -302,11 +302,11 @@ void QtGraphEdge::focusIn()
 			Edge::EdgeType type = (getData() ? getData()->getType() : Edge::EDGE_AGGREGATION);
 
 			TooltipInfo info;
-			info.title = utility::encodeToUtf8(Edge::getReadableTypeString(type));
+			info.title = Edge::getReadableTypeString(type);
 
 			if (type == Edge::EDGE_AGGREGATION && m_direction == TokenComponentAggregation::DIRECTION_NONE)
 			{
-				info.title = "bidirectional " + info.title;
+				info.title = L"bidirectional " + info.title;
 			}
 
 			if (type == Edge::EDGE_AGGREGATION)