ui: precollapse files in code view

This change shows the files in the code view minimized, if more than 5. This greatly improves performance, because code
and annotations won't get loaded until needed. Files including declarations or definitions of the active symbol are
still expanded. The number of references in each file is now shown in it's title bar. Clicking the title bar allows for
expanding and collapsing as well now.

src/app/qt/element/QtCodeFileList.cpp

@@ -46,40 +46,28 @@ void QtCodeFileList::addCodeSnippet(
 	Id titleId,
 	const std::string& code,
 	std::shared_ptr<TokenLocationFile> locationFile,
+	uint refCount,
 	bool insert
 ){
-	FilePath filePath = locationFile->getFilePath();
-	QtCodeFile* file = nullptr;
-
-	for (std::shared_ptr<QtCodeFile> filePtr : m_files)
-	{
-		if (filePtr->getFilePath() == filePath)
-		{
-			file = filePtr.get();
-			break;
-		}
-	}
-
-	if (!file)
-	{
-		std::shared_ptr<QtCodeFile> filePtr = std::make_shared<QtCodeFile>(locationFile->getFilePath(), this);
-		m_files.push_back(filePtr);
-
-		file = filePtr.get();
-		m_frame->layout()->addWidget(file);
-	}
+	QtCodeFile* file = getFile(locationFile);
 
 	if (insert)
 	{
-		QWidget* snippet = file->insertCodeSnippet(startLineNumber, title, titleId, code, locationFile);
+		QWidget* snippet = file->insertCodeSnippet(startLineNumber, title, titleId, code, locationFile, refCount);
 		emit shouldScrollToSnippet(snippet);
 	}
 	else
 	{
-		file->addCodeSnippet(startLineNumber, title, titleId, code, locationFile);
+		file->addCodeSnippet(startLineNumber, title, titleId, code, locationFile, refCount);
 	}
 }
 
+void QtCodeFileList::addFile(std::shared_ptr<TokenLocationFile> locationFile, uint refCount)
+{
+	QtCodeFile* file = getFile(locationFile);
+	file->setLocationFile(locationFile, refCount);
+}
+
 void QtCodeFileList::clearCodeSnippets()
 {
 	m_files.clear();
@@ -111,7 +99,7 @@ void QtCodeFileList::setErrorMessages(const std::vector<std::string>& errorMessa
 	m_errorMessages = errorMessages;
 }
 
-void QtCodeFileList::scrollToFirstActiveSnippet()
+bool QtCodeFileList::scrollToFirstActiveSnippet()
 {
 	updateFiles();
 
@@ -127,6 +115,19 @@ void QtCodeFileList::scrollToFirstActiveSnippet()
 			}
 
 			emit shouldScrollToSnippet(widget);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+void QtCodeFileList::expandActiveSnippetFile()
+{
+	for (std::shared_ptr<QtCodeFile> file: m_files)
+	{
+		if (file->openCollapsedActiveSnippet())
+		{
 			return;
 		}
 	}
@@ -149,6 +150,32 @@ void QtCodeFileList::scrollToSnippet(QWidget* widget)
 	this->ensureWidgetVisibleAnimated(widget);
 }
 
+QtCodeFile* QtCodeFileList::getFile(std::shared_ptr<TokenLocationFile> locationFile)
+{
+	FilePath filePath = locationFile->getFilePath();
+	QtCodeFile* file = nullptr;
+
+	for (std::shared_ptr<QtCodeFile> filePtr : m_files)
+	{
+		if (filePtr->getFilePath() == filePath)
+		{
+			file = filePtr.get();
+			break;
+		}
+	}
+
+	if (!file)
+	{
+		std::shared_ptr<QtCodeFile> filePtr = std::make_shared<QtCodeFile>(locationFile->getFilePath(), this);
+		m_files.push_back(filePtr);
+
+		file = filePtr.get();
+		m_frame->layout()->addWidget(file);
+	}
+
+	return file;
+}
+
 void QtCodeFileList::updateFiles()
 {
 	for (std::shared_ptr<QtCodeFile> file: m_files)
@@ -216,10 +243,10 @@ void QtCodeFileList::ensureWidgetVisibleAnimated(QWidget *childWidget, int xmarg
 	if (scrollBar)
 	{
 		QPropertyAnimation* anim = new QPropertyAnimation(scrollBar, "value");
-		anim->setDuration(std::abs(scrollBar->value() - value));
+		anim->setDuration(500);
 		anim->setStartValue(scrollBar->value());
 		anim->setEndValue(value);
-		anim->setEasingCurve(QEasingCurve::OutQuad);
+		anim->setEasingCurve(QEasingCurve::InOutQuad);
 		anim->start();
 	}
 }