diff --git a/qrenderdoc/Code/QRDUtils.h b/qrenderdoc/Code/QRDUtils.h
index 2f62cd987..7662a4a5c 100644
--- a/qrenderdoc/Code/QRDUtils.h
+++ b/qrenderdoc/Code/QRDUtils.h
@@ -870,24 +870,6 @@ struct RDDialog
                                  QFileDialog::Options options = QFileDialog::Options());
 };
 
-// useful delegate for enforcing a given size
-#include <QItemDelegate>
-
-class SizeDelegate : public QItemDelegate
-{
-private:
-  Q_OBJECT
-
-  QSize m_Size;
-
-public:
-  SizeDelegate(QSize size) : m_Size(size) {}
-  QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
-  {
-    return m_Size;
-  }
-};
-
 class QGridLayout;
 
 void addGridLines(QGridLayout *grid);
diff --git a/qrenderdoc/Widgets/Extended/RDTreeView.cpp b/qrenderdoc/Widgets/Extended/RDTreeView.cpp
index 6adcf70d4..89662a4bf 100644
--- a/qrenderdoc/Widgets/Extended/RDTreeView.cpp
+++ b/qrenderdoc/Widgets/Extended/RDTreeView.cpp
@@ -25,8 +25,26 @@
 #include "RDTreeView.h"
 #include <QPainter>
 
+RDTreeViewDelegate::RDTreeViewDelegate(RDTreeView *view) : QStyledItemDelegate(view), m_View(view)
+{
+}
+
+QSize RDTreeViewDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
+{
+  QSize ret = QStyledItemDelegate::sizeHint(option, index);
+
+  // expand by the margins
+  ret.setWidth(ret.width() + m_View->m_HorizMargin);
+  ret.setHeight(ret.height() + m_View->m_VertMargin);
+
+  return ret;
+}
+
 RDTreeView::RDTreeView(QWidget *parent) : QTreeView(NULL)
 {
+  setItemDelegate(new RDTreeViewDelegate(this));
+}
+
 }
 
 void RDTreeView::drawBranches(QPainter *painter, const QRect &rect, const QModelIndex &index) const
diff --git a/qrenderdoc/Widgets/Extended/RDTreeView.h b/qrenderdoc/Widgets/Extended/RDTreeView.h
index 307793ffe..29a5c66f3 100644
--- a/qrenderdoc/Widgets/Extended/RDTreeView.h
+++ b/qrenderdoc/Widgets/Extended/RDTreeView.h
@@ -24,8 +24,23 @@
 
 #pragma once
 
+#include <QStyledItemDelegate>
 #include <QTreeView>
 
+class RDTreeView;
+
+class RDTreeViewDelegate : public QStyledItemDelegate
+{
+private:
+  Q_OBJECT
+
+  RDTreeView *m_View;
+
+public:
+  RDTreeViewDelegate(RDTreeView *view);
+  QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const override;
+};
+
 class RDTreeView : public QTreeView
 {
   Q_OBJECT
@@ -33,8 +48,20 @@ public:
   explicit RDTreeView(QWidget *parent = 0);
 
   void setDrawBranches(bool draw) { m_DrawBranches = draw; }
-private:
+  void setItemMargins(int horizontal, int vertical)
+  {
+    m_HorizMargin = horizontal;
+    m_VertMargin = vertical;
+  }
+  int horizontalItemMargin() { return m_HorizMargin; }
+  int verticalItemMargin() { return m_VertMargin; }
+protected:
   void drawBranches(QPainter *painter, const QRect &rect, const QModelIndex &index) const override;
 
+private:
   bool m_DrawBranches = true;
+
+  int m_HorizMargin = 3, m_VertMargin = 3;
+
+  friend class RDTreeViewDelegate;
 };
diff --git a/qrenderdoc/Windows/EventBrowser.cpp b/qrenderdoc/Windows/EventBrowser.cpp
index 346fbb078..e3b34df53 100644
--- a/qrenderdoc/Windows/EventBrowser.cpp
+++ b/qrenderdoc/Windows/EventBrowser.cpp
@@ -85,9 +85,6 @@ EventBrowser::EventBrowser(ICaptureContext &ctx, QWidget *parent)
   // becomes quickly infuriating to rearrange, just disable until that can be fixed.
   ui->events->header()->setSectionsMovable(false);
 
-  m_SizeDelegate = new SizeDelegate(QSize(0, 16));
-  ui->events->setItemDelegate(m_SizeDelegate);
-
   UpdateDurationColumn();
 
   m_FindHighlight = new QTimer(this);
@@ -141,7 +138,6 @@ EventBrowser::~EventBrowser()
   m_Ctx.BuiltinWindowClosed(this);
   m_Ctx.RemoveLogViewer(this);
   delete ui;
-  delete m_SizeDelegate;
 }
 
 void EventBrowser::OnLogfileLoaded()
diff --git a/qrenderdoc/Windows/EventBrowser.h b/qrenderdoc/Windows/EventBrowser.h
index b71a159f5..e2a037ad5 100644
--- a/qrenderdoc/Windows/EventBrowser.h
+++ b/qrenderdoc/Windows/EventBrowser.h
@@ -39,7 +39,6 @@ class RDTreeWidgetItem;
 class QTimer;
 class QTextStream;
 class FlowLayout;
-class SizeDelegate;
 struct EventItemTag;
 
 class EventBrowser : public QFrame, public IEventBrowser, public ILogViewer
@@ -123,7 +122,6 @@ private:
 
   rdctype::array<CounterResult> m_Times;
 
-  SizeDelegate *m_SizeDelegate;
   QTimer *m_FindHighlight;
 
   FlowLayout *m_BookmarkStripLayout;