ui: Fixes for code view

* set code font size as pixel value
* properly hide line number area for overview stats in both snippets and single file view
* fixed file title disabled for files in single file view in trial mode

src/lib_gui/qt/element/QtCodeArea.cpp

@@ -71,11 +71,13 @@ void QtCodeArea::LineNumberArea::paintEvent(QPaintEvent *event)
 	m_codeArea->lineNumberAreaPaintEvent(event);
 }
 
+
 QtCodeArea::QtCodeArea(
 	uint startLineNumber,
 	const std::string& code,
 	std::shared_ptr<SourceLocationFile> locationFile,
 	QtCodeNavigator* navigator,
+	bool showLineNumbers,
 	QWidget* parent
 )
 	: QtCodeField(startLineNumber, code, locationFile, parent)
@@ -86,7 +88,7 @@ QtCodeArea::QtCodeArea(
 	, m_setIDECursorPositionAction(nullptr)
 	, m_eventPosition(0, 0)
 	, m_isActiveFile(false)
-	, m_lineNumbersHidden(false)
+	, m_showLineNumbers(showLineNumbers)
 {
 	setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Fixed);
 
@@ -191,7 +193,7 @@ int QtCodeArea::lineNumberDigits() const
 
 int QtCodeArea::lineNumberAreaWidth() const
 {
-	if (!m_lineNumbersHidden)
+	if (m_showLineNumbers)
 	{
 		return fontMetrics().width(QLatin1Char('9')) * m_digits + 30;
 	}
@@ -299,12 +301,6 @@ QRectF QtCodeArea::getLineRectForLineNumber(uint lineNumber) const
 	return blockBoundingGeometry(block);
 }
 
-void QtCodeArea::hideLineNumbers()
-{
-	m_lineNumberArea->hide();
-	m_lineNumbersHidden = true;
-}
-
 void QtCodeArea::resizeEvent(QResizeEvent *e)
 {
 	QPlainTextEdit::resizeEvent(e);

src/lib_gui/qt/element/QtCodeArea.h

@@ -54,6 +54,7 @@ public:
 		const std::string& code,
 		std::shared_ptr<SourceLocationFile> locationFile,
 		QtCodeNavigator* navigator,
+		bool showLineNumbers,
 		QWidget* parent = nullptr
 	);
 	virtual ~QtCodeArea();
@@ -79,8 +80,6 @@ public:
 
 	QRectF getLineRectForLineNumber(uint lineNumber) const;
 
-	void hideLineNumbers();
-
 protected:
 	virtual void resizeEvent(QResizeEvent* event) Q_DECL_OVERRIDE;
 	virtual void mouseReleaseEvent(QMouseEvent* event) Q_DECL_OVERRIDE;
@@ -126,7 +125,7 @@ private:
 							// the position where the context menu is opened needs to be stored]
 
 	bool m_isActiveFile;
-	bool m_lineNumbersHidden;
+	bool m_showLineNumbers;
 
 	QtScrollSpeedChangeListener m_scrollSpeedChangeListener;
 };

src/lib_gui/qt/element/QtCodeField.cpp

@@ -63,7 +63,9 @@ QtCodeField::QtCodeField(
 	m_highlighter->highlightDocument();
 
 	ApplicationSettings* appSettings = ApplicationSettings::getInstance().get();
-	setFont(QFont(appSettings->getFontName().c_str(), appSettings->getFontSize()));
+	QFont font(appSettings->getFontName().c_str());
+	font.setPixelSize(appSettings->getFontSize());
+	setFont(font);
 	setTabStopWidth(appSettings->getCodeTabWidth() * fontMetrics().width('9'));
 }
 

src/lib_gui/qt/element/QtCodeFileSingle.cpp

@@ -113,7 +113,7 @@ void QtCodeFileSingle::addCodeSnippet(const CodeSnippetParams& params)
 		file.title = params.title;
 	}
 
-	file.area = std::make_shared<QtCodeArea>(1, params.code, params.locationFile, m_navigator, this);
+	file.area = std::make_shared<QtCodeArea>(1, params.code, params.locationFile, m_navigator, !params.reduced, this);
 	connect(file.area->verticalScrollBar(), &QScrollBar::valueChanged, m_navigator, &QtCodeNavigator::scrolled);
 
 	m_fileDatas.emplace(file.filePath, file);

src/lib_gui/qt/element/QtCodeFileTitleButton.cpp

@@ -31,6 +31,8 @@ QtCodeFileTitleButton::~QtCodeFileTitleButton()
 
 void QtCodeFileTitleButton::setFilePath(const FilePath& filePath)
 {
+	setEnabled(true);
+
 	m_filePath = filePath;
 	setText("");
 
@@ -89,6 +91,7 @@ void QtCodeFileTitleButton::setProject(const std::string& name)
 
 	if (Application::getInstance()->isInTrial())
 	{
+		setIcon(QIcon());
 		setEnabled(false);
 	}
 	else

src/lib_gui/qt/element/QtCodeSnippet.cpp

@@ -68,7 +68,8 @@ QtCodeSnippet::QtCodeSnippet(const CodeSnippetParams& params, QtCodeNavigator* n
 	, m_footerString(params.footer)
 	, m_title(nullptr)
 	, m_footer(nullptr)
-	, m_codeArea(std::make_shared<QtCodeArea>(params.startLineNumber, params.code, params.locationFile, navigator, this))
+	, m_codeArea(std::make_shared<QtCodeArea>(
+		params.startLineNumber, params.code, params.locationFile, navigator, !params.reduced, this))
 {
 	setObjectName("code_snippet");
 
@@ -107,11 +108,6 @@ QtCodeSnippet::QtCodeSnippet(const CodeSnippetParams& params, QtCodeNavigator* n
 		}
 		connect(m_footer, &QPushButton::clicked, this, &QtCodeSnippet::clickedFooter);
 	}
-
-	if (params.reduced)
-	{
-		m_codeArea->hideLineNumbers();
-	}
 }
 
 QtCodeSnippet::~QtCodeSnippet()