ui: Improved scrolling and layouting in QtCodeView and colored locations of active TokenId differently

bin/app/data/ApplicationSettings.xml

@@ -5,5 +5,6 @@
 		<FontName>Courier</FontName>
 		<FontSize>12</FontSize>
 		<LinkColor>255 255 0 100</LinkColor>
+		<ActiveLinkColor>0 255 0 100</ActiveLinkColor>
 	</code>
 </config>

bin/app/data/src/header.h

@@ -0,0 +1,4 @@
+int main();
+void foo();
+int sum(int a, int b);
+int diff(int a, int b);

bin/app/data/src/main.cpp

@@ -1,5 +1,9 @@
+#include "header.h"
+
 int main();
 void foo();
+int sum(int a, int b);
+int diff(int a, int b);
 
 int main()
 {
@@ -9,7 +13,23 @@ int main()
 	return 0;
 }
 
+int sum(int a, int b);
+
+int diff(int a, int b);
+
 void foo()
 {
 	std::string foo = "bar";
-}
+}
+
+int diff(int a, int b);
+
+int sum(int a, int b)
+{
+	return a + b;
+}
+
+int diff(int a, int b)
+{
+	return a - b;
+}

src/app/qt/element/QtCodeFile.cpp

@@ -13,6 +13,7 @@ QtCodeFile::QtCodeFile(QtCodeView* parentView, const std::string& fileName, QWid
 	QVBoxLayout* layout = new QVBoxLayout(this);
 	layout->setMargin(0);
 	layout->setSpacing(2);
+	layout->setAlignment(Qt::AlignTop);
 	setLayout(layout);
 
 	QLabel* label = new QLabel(fileName.c_str(), this);
@@ -20,6 +21,7 @@ QtCodeFile::QtCodeFile(QtCodeView* parentView, const std::string& fileName, QWid
 
 	label->setStyleSheet("background-color: #E1E1E1; padding: 3px;");
 	label->setFixedWidth(metrics.boundingRect(fileName.c_str()).width() + 12);
+	label->setSizePolicy(sizePolicy().horizontalPolicy(), QSizePolicy::Fixed);
 	layout->addWidget(label);
 }
 
@@ -32,10 +34,11 @@ const std::string& QtCodeFile::getFileName() const
 	return m_fileName;
 }
 
-void QtCodeFile::addCodeSnippet(const std::string& str, const TokenLocationFile& locationFile, int startLineNumber)
-{
+void QtCodeFile::addCodeSnippet(
+	const std::string& str, const TokenLocationFile& locationFile, int startLineNumber, Id activeTokenId
+){
 	std::shared_ptr<QtCodeSnippet> snippet =
-		std::make_shared<QtCodeSnippet>(m_parentView, str, locationFile, startLineNumber, this);
+		std::make_shared<QtCodeSnippet>(m_parentView, str, locationFile, startLineNumber, activeTokenId, this);
 	layout()->addWidget(snippet.get());
 	m_snippets.push_back(snippet);
 }

src/app/qt/element/QtCodeFile.h

@@ -7,6 +7,8 @@
 
 #include <QWidget>
 
+#include "utility/types.h"
+
 class QtCodeSnippet;
 class QtCodeView;
 class TokenLocationFile;
@@ -19,7 +21,9 @@ public:
 
 	const std::string& getFileName() const;
 
-	void addCodeSnippet(const std::string& str, const TokenLocationFile& locationFile, int startLineNumber);
+	void addCodeSnippet(
+		const std::string& str, const TokenLocationFile& locationFile, int startLineNumber, Id activeTokenId
+	);
 
 private:
 	QtCodeView* m_parentView;

src/app/qt/element/QtCodeSnippet.cpp

@@ -36,21 +36,26 @@ QtCodeSnippet::QtCodeSnippet(
 	const std::string& code,
 	const TokenLocationFile& locationFile,
 	int startLineNumber,
+	Id activeTokenId,
 	QWidget *parent
 )
 	: QPlainTextEdit(parent)
 	, m_parentView(parentView)
 	, m_startLineNumber(startLineNumber)
+	, m_activeTokenId(activeTokenId)
 {
 	m_lineNumberArea = new LineNumberArea(this);
 
 	setReadOnly(true);
 	setFrameStyle(QFrame::NoFrame);
+	setSizePolicy(sizePolicy().horizontalPolicy(), QSizePolicy::Fixed);
+	setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+	setLineWrapMode(QPlainTextEdit::NoWrap);
 
 	QFont font;
 	font.setFamily(ApplicationSettings::getInstance()->getCodeFontName().c_str());
-	font.setFixedPitch(true);
 	font.setPointSize(ApplicationSettings::getInstance()->getCodeFontSize());
+	font.setFixedPitch(true);
 	setFont(font);
 
 	int tabWidth = ApplicationSettings::getInstance()->getCodeTabWidth();
@@ -58,7 +63,14 @@ QtCodeSnippet::QtCodeSnippet(
 	setTabStopWidth(tabWidth * metrics.width(' '));
 
 	m_highlighter = new QtHighlighter(document());
-	setPlainText(QString::fromUtf8(code.c_str()));
+
+	std::string displayCode = code;
+	if (*code.rbegin() == '\n')
+	{
+		displayCode.pop_back();
+	}
+
+	setPlainText(QString::fromUtf8(displayCode.c_str()));
 	annotateText(locationFile);
 
 	connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
@@ -66,6 +78,8 @@ QtCodeSnippet::QtCodeSnippet(
 	connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(clickTokenLocation()));
 	connect(this, SIGNAL(selectionChanged()), this, SLOT(clearSelection()));
 
+	setMaximumHeight(sizeHint().height());
+
 	updateLineNumberAreaWidth(0);
 }
 
@@ -73,6 +87,13 @@ QtCodeSnippet::~QtCodeSnippet()
 {
 }
 
+QSize QtCodeSnippet::sizeHint() const
+{
+	int width = lineNumberAreaWidth() + document()->size().width();
+	int height = (document()->size().height() + 1) * QFontMetrics(font()).lineSpacing();
+	return QSize(width, height);
+}
+
 void QtCodeSnippet::lineNumberAreaPaintEvent(QPaintEvent *event)
 {
 	QPainter painter(m_lineNumberArea);
@@ -99,7 +120,7 @@ void QtCodeSnippet::lineNumberAreaPaintEvent(QPaintEvent *event)
 	}
 }
 
-int QtCodeSnippet::lineNumberAreaWidth()
+int QtCodeSnippet::lineNumberAreaWidth() const
 {
 	int digits = 1;
 	int max = qMax(1, m_startLineNumber + blockCount());
@@ -138,7 +159,16 @@ void QtCodeSnippet::annotateText(const TokenLocationFile& locationFile)
 
 			QTextEdit::ExtraSelection selection;
 
-			Colori color = ApplicationSettings::getInstance()->getCodeLinkColor();
+			Colori color;
+			if (location->getTokenId() == m_activeTokenId)
+			{
+				color = ApplicationSettings::getInstance()->getCodeActiveLinkColor();
+			}
+			else
+			{
+				color = ApplicationSettings::getInstance()->getCodeLinkColor();
+			}
+
 			selection.format.setBackground(QColor(color.r, color.g, color.b, color.a));
 
 			selection.cursor = textCursor();

src/app/qt/element/QtCodeSnippet.h

@@ -40,12 +40,15 @@ public:
 		const std::string& code,
 		const TokenLocationFile& locationFile,
 		int startLineNumber,
+		Id activeTokenId,
 		QWidget *parent = 0
 	);
 	virtual ~QtCodeSnippet();
 
+	QSize sizeHint() const;
+
 	void lineNumberAreaPaintEvent(QPaintEvent *event);
-	int lineNumberAreaWidth();
+	int lineNumberAreaWidth() const;
 
 	void annotateText(const TokenLocationFile& locationFile);
 
@@ -73,6 +76,7 @@ private:
 
 	QWidget *m_lineNumberArea;
 	const int m_startLineNumber;
+	const Id m_activeTokenId;
 
 	std::vector<Annotation> m_annotations;
 };

src/app/qt/view/QtCodeView.cpp

@@ -1,7 +1,8 @@
 #include "qt/view/QtCodeView.h"
 
-#include <iostream>
-#include <QtWidgets>
+#include <QFrame>
+#include <QScrollArea>
+#include <QVBoxLayout>
 
 #include "data/location/TokenLocationFile.h"
 #include "qt/element/QtCodeFile.h"
@@ -13,7 +14,7 @@
 QtCodeView::QtCodeView(ViewLayout* viewLayout)
 	: CodeView(viewLayout)
 	, m_clearCodeSnippetsFunctor(std::bind(&QtCodeView::doClearCodeSnippets, this))
-	, m_addCodeSnippetFunctor(std::bind(&QtCodeView::doAddCodeSnippet, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3))
+	, m_addCodeSnippetFunctor(std::bind(&QtCodeView::doAddCodeSnippet, this, std::placeholders::_1))
 {
 }
 
@@ -23,7 +24,7 @@ QtCodeView::~QtCodeView()
 
 void QtCodeView::createWidgetWrapper()
 {
-	setWidgetWrapper(std::make_shared<QtWidgetWrapper>(std::make_shared<QFrame>()));
+	setWidgetWrapper(std::make_shared<QtWidgetWrapper>(std::make_shared<QScrollArea>()));
 }
 
 void QtCodeView::initGui()
@@ -31,15 +32,22 @@ void QtCodeView::initGui()
 	QWidget* widget = QtWidgetWrapper::getWidgetOfView(this);
 	utility::setWidgetBackgroundColor(widget, Colori(255, 125, 0, 255));
 
-	QBoxLayout* layout = new QBoxLayout(QBoxLayout::TopToBottom);
-	layout->setSpacing(3);
+	QScrollArea* scroll = dynamic_cast<QScrollArea*>(widget);
+	m_frame = std::make_shared<QFrame>(scroll);
+
+	QVBoxLayout* layout = new QVBoxLayout(m_frame.get());
+	layout->setSpacing(10);
 	layout->setContentsMargins(3, 3, 3, 3);
-	widget->setLayout(layout);
+	layout->setAlignment(Qt::AlignTop);
+	m_frame->setLayout(layout);
+
+	scroll->setWidgetResizable(true);
+	scroll->setWidget(m_frame.get());
 }
 
-void QtCodeView::addCodeSnippet(const std::string& str, const TokenLocationFile& locationFile, int startLineNumber)
+void QtCodeView::addCodeSnippet(const CodeSnippetParams params)
 {
-	m_addCodeSnippetFunctor(str, locationFile, startLineNumber);
+	m_addCodeSnippetFunctor(params);
 }
 
 void QtCodeView::clearCodeSnippets()
@@ -53,9 +61,9 @@ void QtCodeView::activateToken(Id tokenId) const
 	message.dispatch();
 }
 
-void QtCodeView::doAddCodeSnippet(const std::string& str, const TokenLocationFile& locationFile, int startLineNumber)
+void QtCodeView::doAddCodeSnippet(const CodeSnippetParams params)
 {
-	std::string fileName = FileSystem::fileName(locationFile.getFilePath());
+	std::string fileName = FileSystem::fileName(params.locationFile.getFilePath());
 	QtCodeFile* file = nullptr;
 
 	for (std::shared_ptr<QtCodeFile> filePtr : m_files)
@@ -74,10 +82,10 @@ void QtCodeView::doAddCodeSnippet(const std::string& str, const TokenLocationFil
 
 		m_files.push_back(filePtr);
 		file = filePtr.get();
-		widget->layout()->addWidget(file);
+		m_frame->layout()->addWidget(file);
 	}
 
-	file->addCodeSnippet(str, locationFile, startLineNumber);
+	file->addCodeSnippet(params.code, params.locationFile, params.startLineNumber, params.activeTokenId);
 }
 
 void QtCodeView::doClearCodeSnippets()

src/app/qt/view/QtCodeView.h

@@ -8,6 +8,7 @@
 #include "qt/utility/QtThreadedFunctor.h"
 #include "utility/types.h"
 
+class QFrame;
 class QtCodeFile;
 
 class QtCodeView: public CodeView
@@ -21,19 +22,20 @@ public:
 	virtual void initGui();
 
 	// CodeView implementation
-	virtual void addCodeSnippet(const std::string& str, const TokenLocationFile& locationFile, int startLineNumber);
+	virtual void addCodeSnippet(const CodeSnippetParams params);
 	virtual void clearCodeSnippets();
 
 	void activateToken(Id tokenId) const;
 
 private:
-	void doAddCodeSnippet(const std::string& str, const TokenLocationFile& locationFile, int startLineNumber);
+	void doAddCodeSnippet(const CodeSnippetParams params);
 	void doClearCodeSnippets();
 
+	std::shared_ptr<QFrame> m_frame;
 	std::vector<std::shared_ptr<QtCodeFile> > m_files;
 
 	QtThreadedFunctor<void> m_clearCodeSnippetsFunctor;
-	QtThreadedFunctor<const std::string&, const TokenLocationFile&, int> m_addCodeSnippetFunctor;
+	QtThreadedFunctor<const CodeSnippetParams> m_addCodeSnippetFunctor;
 };
 
 # endif // QT_CODE_VIEW_H

src/lib/ApplicationSettings.cpp

@@ -58,6 +58,16 @@ void ApplicationSettings::setCodeLinkColor(Colori codeLinkColor)
 	setValue<std::string>("code/LinkColor", codeLinkColor.toString());
 }
 
+Colori ApplicationSettings::getCodeActiveLinkColor() const
+{
+	return Colori::fromString(getValue<std::string>("code/ActiveLinkColor", Colori(0, 255, 0, 100).toString()));
+}
+
+void ApplicationSettings::setCodeActiveLinkColor(Colori codeLinkColor)
+{
+	setValue<std::string>("code/ActiveLinkColor", codeLinkColor.toString());
+}
+
 ApplicationSettings::ApplicationSettings()
 {
 }

src/lib/ApplicationSettings.h

@@ -25,6 +25,9 @@ public:
 	Colori getCodeLinkColor() const;
 	void setCodeLinkColor(Colori codeLinkColor);
 
+	Colori getCodeActiveLinkColor() const;
+	void setCodeActiveLinkColor(Colori codeLinkColor);
+
 private:
 	ApplicationSettings();
 	ApplicationSettings(const ApplicationSettings&);

src/lib/component/controller/CodeController.cpp

@@ -29,6 +29,7 @@ void CodeController::setActiveTokenId(Id id)
 	collection.forEachTokenLocation([&] (TokenLocation* tokenLocation) -> void {
 		if (tokenLocation->isStartTokenLocation())
 		{
+			CodeView::CodeSnippetParams params;
 			const std::string filePath = tokenLocation->getFilePath();
 			std::shared_ptr<TextAccess> textAccess = TextAccess::createFromFile(filePath);
 
@@ -37,14 +38,17 @@ void CodeController::setActiveTokenId(Id id)
 				textAccess->getLineCount(), tokenLocation->getEndTokenLocation()->getLineNumber() + lineRadius
 			);
 
-			std::string text;
 			for (std::string line: textAccess->getLines(firstLineNumber, lastLineNumber))
 			{
-				text += line;
+				params.code += line;
 			}
 
-			TokenLocationFile tokenLocationFile = m_locationAccess->getTokenLocationsForLinesInFile(filePath, firstLineNumber, lastLineNumber);
-			getView()->addCodeSnippet(text, tokenLocationFile, firstLineNumber);
+			params.startLineNumber = firstLineNumber;
+			params.locationFile =
+				m_locationAccess->getTokenLocationsForLinesInFile(filePath, firstLineNumber, lastLineNumber);
+			params.activeTokenId = id;
+
+			getView()->addCodeSnippet(params);
 		}
 	});
 }

src/lib/component/view/CodeView.cpp

@@ -2,6 +2,11 @@
 
 #include "component/controller/CodeController.h"
 
+CodeView::CodeSnippetParams::CodeSnippetParams()
+	: locationFile("")
+{
+}
+
 CodeView::CodeView(ViewLayout* viewLayout)
 	: View(viewLayout, Vec2i(100, 100))
 {

src/lib/component/view/CodeView.h

@@ -2,19 +2,30 @@
 #define CODE_VIEW_H
 
 #include "component/view/View.h"
+#include "data/location/TokenLocationFile.h"
+#include "utility/types.h"
 
 class CodeController;
-class TokenLocationFile;
 
 class CodeView: public View
 {
 public:
+	struct CodeSnippetParams
+	{
+		CodeSnippetParams();
+
+		std::string code;
+		TokenLocationFile locationFile;
+		int startLineNumber;
+		Id activeTokenId;
+	};
+
 	CodeView(ViewLayout* viewLayout);
 	virtual ~CodeView();
 
 	virtual std::string getName() const;
 
-	virtual void addCodeSnippet(const std::string& str, const TokenLocationFile& locationFile, int startLineNumber) = 0;
+	virtual void addCodeSnippet(const CodeSnippetParams params) = 0;
 	virtual void clearCodeSnippets() = 0;
 
 private:

src/lib/data/location/TokenLocationFile.h

@@ -44,7 +44,7 @@ private:
 	TokenLocationLine* createTokenLocationLine(unsigned int lineNumber);
 
 	std::map<unsigned int, std::shared_ptr<TokenLocationLine> > m_lines;
-	const std::string m_filePath;
+	std::string m_filePath;
 };
 
 std::ostream& operator<<(std::ostream& ostream, const TokenLocationFile& file);