logic: fixes all over the place

* fixed refreshing to send another ui refresh message after parsing
* keepContent field for MessageBase so that views won't update
* fixed searchmatching to only weigh uppercase letters next to lowercase ones
* fixed file not jumping back to snippets when activating edge
* clicking into empty space deselects active edge
* clear file manager files on every fetch
* added db transaction for file clearing
* use zooming instead of changing font size

src/app/qt/element/QtCodeFile.cpp

@@ -223,11 +223,21 @@ QWidget* QtCodeFile::findFirstActiveSnippet() const
 		return nullptr;
 	}
 
-	for (std::shared_ptr<QtCodeSnippet> snippet : m_snippets)
+	if (m_maximizeButton->isEnabled())
 	{
-		if (snippet->isActive())
+		for (std::shared_ptr<QtCodeSnippet> snippet : m_snippets)
 		{
-			return snippet.get();
+			if (snippet->isActive())
+			{
+				return snippet.get();
+			}
+		}
+	}
+	else
+	{
+		if (m_fileSnippet->isActive())
+		{
+			return m_fileSnippet.get();
 		}
 	}
 

src/app/qt/view/QtGraphView.cpp

@@ -3,7 +3,7 @@
 #include <QBoxLayout>
 #include <QFrame>
 #include <QGraphicsScene>
-#include <QGraphicsView>
+#include <QMouseEvent>
 #include <QPropertyAnimation>
 #include <QParallelAnimationGroup>
 #include <QScrollBar>
@@ -12,6 +12,8 @@
 #include "component/controller/helper/DummyEdge.h"
 #include "component/controller/helper/DummyNode.h"
 #include "component/controller/helper/GraphPostprocessor.h"
+#include "component/view/GraphViewStyle.h"
+#include "utility/messaging/type/MessageDeactivateEdge.h"
 
 #include "qt/utility/utilityQt.h"
 
@@ -25,6 +27,32 @@
 #include "qt/view/graphElements/QtGraphNodeExpandToggle.h"
 #include "settings/ColorScheme.h"
 
+QtGraphicsView::QtGraphicsView(QWidget* parent)
+	: QGraphicsView(parent)
+{
+}
+
+void QtGraphicsView::mousePressEvent(QMouseEvent *event)
+{
+	if (event->button() == Qt::LeftButton && !itemAt(event->pos()))
+	{
+		m_last = event->pos();
+	}
+
+	QGraphicsView::mousePressEvent(event);
+}
+
+void QtGraphicsView::mouseReleaseEvent(QMouseEvent *event)
+{
+	if (event->button() == Qt::LeftButton && !itemAt(event->pos()) && event->pos() == m_last)
+	{
+		emit emptySpaceClicked();
+	}
+
+	QGraphicsView::mouseReleaseEvent(event);
+}
+
+
 QtGraphView::QtGraphView(ViewLayout* viewLayout)
 	: GraphView(viewLayout)
 	, m_rebuildGraphFunctor(
@@ -56,13 +84,15 @@ void QtGraphView::initView()
 	widget->setLayout(layout);
 
 	QGraphicsScene* scene = new QGraphicsScene(widget);
-	QGraphicsView* view = new QGraphicsView(widget);
+	QGraphicsView* view = new QtGraphicsView(widget);
 	view->setScene(scene);
 	view->setDragMode(QGraphicsView::ScrollHandDrag);
 	view->setRenderHints(QPainter::Antialiasing);
 
 	widget->layout()->addWidget(view);
 
+	connect(view, SIGNAL(emptySpaceClicked()), this, SLOT(clickedInEmptySpace()));
+
 	doRefreshView();
 }
 
@@ -114,6 +144,23 @@ void QtGraphView::finishedTransition()
 	switchToNewGraphData();
 }
 
+void QtGraphView::clickedInEmptySpace()
+{
+	size_t activeEdgeCount = 0;
+	for (std::shared_ptr<QtGraphEdge> edge : m_oldEdges)
+	{
+		if (edge->getIsActive())
+		{
+			activeEdgeCount++;
+		}
+	}
+
+	if (activeEdgeCount == 1)
+	{
+		MessageDeactivateEdge().dispatch();
+	}
+}
+
 void QtGraphView::switchToNewGraphData()
 {
 	m_oldGraph = m_graph;
@@ -239,6 +286,9 @@ void QtGraphView::doRefreshView()
 
 	std::string css = utility::getStyleSheet("data/gui/graph_view/graph_view.css");
 	getView()->setStyleSheet(css.c_str());
+
+	float zoomFactor = GraphViewStyle::getZoomFactor();
+	getView()->setTransform(QTransform(zoomFactor, 0, 0, zoomFactor, 0, 0));
 }
 
 std::shared_ptr<QtGraphNode> QtGraphView::findNodeRecursive(const std::list<std::shared_ptr<QtGraphNode>>& nodes, Id tokenId)

src/app/qt/view/QtGraphView.h

@@ -1,21 +1,38 @@
 #ifndef QT_GRAPH_VIEW_H
 #define QT_GRAPH_VIEW_H
 
+#include <QGraphicsView>
 #include <QPointF>
 
-#include "utility/types.h"
-
-#include "qt/utility/QtThreadedFunctor.h"
-
 #include "component/view/GraphView.h"
+#include "qt/utility/QtThreadedFunctor.h"
+#include "utility/types.h"
 
 struct DummyEdge;
 struct DummyNode;
-class QGraphicsView;
+class QMouseEvent;
 class QSequentialAnimationGroup;
 class QtGraphEdge;
 class QtGraphNode;
 
+class QtGraphicsView
+	: public QGraphicsView
+{
+	Q_OBJECT
+
+public:
+	QtGraphicsView(QWidget* parent);
+	void mousePressEvent(QMouseEvent *event);
+	void mouseReleaseEvent(QMouseEvent *event);
+
+signals:
+	void emptySpaceClicked();
+
+private:
+	QPoint m_last;
+};
+
+
 class QtGraphView
 	: public QObject
 	, public GraphView
@@ -44,6 +61,7 @@ public:
 private slots:
 	void centerScrollBars();
 	void finishedTransition();
+	void clickedInEmptySpace();
 
 private:
 	void switchToNewGraphData();

src/app/qt/view/graphElements/QtGraphNodeExpandToggle.cpp

@@ -70,7 +70,7 @@ void QtGraphNodeExpandToggle::updateStyle()
 
 	m_icon->setPos(
 		(m_rect->rect().width() - m_icon->pixmap().width() / QtDeviceScaledPixmap::devicePixelRatio()) / 2,
-		(m_invisibleSubNodeCount == 0 ? m_rect->rect().height() / 2 - 2 : m_rect->rect().height() - 8)
+		(m_invisibleSubNodeCount == 0 ? m_rect->rect().height() / 2 - 2 : m_rect->rect().height() - 7)
 	);
 
 	m_icon->setPixmap(utility::colorizePixmap(m_icon->pixmap(), style.iconColor.c_str()));