Implemented as custom QFileIconProvider class, which (hopefully) is a bit faster than the original one.

res/Icons.qrc

@@ -37,11 +37,16 @@
     <file>icons/disk.png</file>
     <file>icons/door_out.png</file>
     <file>icons/door_in.png</file>
+    <file>icons/drive.png</file>
     <file>icons/drive_cd.png</file>
+    <file>icons/drive_disk.png</file>
+    <file>icons/drive_link.png</file>
+    <file>icons/drive_network.png</file>
     <file>icons/exclamation.png</file>
     <file>icons/error.png</file>
     <file>icons/error_big.png</file>
     <file>icons/feed.png</file>
+    <file>icons/folder.png</file>
     <file>icons/folder_add.png</file>
     <file>icons/folder_go.png</file>
     <file>icons/folder_image.png</file>

src/Config.h

@@ -29,8 +29,8 @@
 #define VER_LAMEXP_MINOR_HI					0
 #define VER_LAMEXP_MINOR_LO					2
 #define VER_LAMEXP_TYPE						Beta
-#define VER_LAMEXP_PATCH					6
-#define VER_LAMEXP_BUILD					562
+#define VER_LAMEXP_PATCH					7
+#define VER_LAMEXP_BUILD					564
 
 ///////////////////////////////////////////////////////////////////////////////
 // Tools versions

src/Model_FileSystem.cpp

@@ -20,28 +20,96 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "Model_FileSystem.h"
+#include "Global.h"
 
 #include <QApplication>
+#include <QFileIconProvider>
+
+///////////////////////////////////////////////////////////////////////////////
+// Dummy QFileIconProvider class
+///////////////////////////////////////////////////////////////////////////////
+
+class QFileIconProviderEx : public QFileIconProvider
+{
+public:
+	QFileIconProviderEx();
+	virtual QIcon icon(IconType type) const { return (type == Drive) ? m_driveIcon : m_folderIcon; }
+	virtual QIcon icon(const QFileInfo &info) const;
+	virtual QString	type (const QFileInfo &info) const { return info.isDir() ? m_folderType : m_emptyType; }
+
+private:
+	const QIcon m_driveIcon;
+	const QIcon m_cdromIcon;
+	const QIcon m_networkIcon;
+	const QIcon m_floppyIcon;
+	const QIcon m_folderIcon;
+	const QIcon m_emptyIcon;
+	const QString m_folderType;
+	const QString m_emptyType;
+};
+
+QFileIconProviderEx::QFileIconProviderEx()
+:
+	m_folderIcon(":/icons/folder.png"),
+	m_driveIcon(":/icons/drive.png"),
+	m_cdromIcon(":/icons/drive_cd.png"),
+	m_networkIcon(":/icons/drive_link.png"),
+	m_floppyIcon(":/icons/drive_disk.png"),
+	m_folderType("Folder")
+{
+	/* Nothing to do! */
+}
+
+QIcon QFileIconProviderEx::icon(const QFileInfo &info) const
+{
+	if(info.isRoot())
+	{
+		switch(GetDriveType(QWCHAR(QDir::toNativeSeparators(info.absoluteFilePath()))))
+		{
+		case DRIVE_CDROM:
+			return m_cdromIcon;
+			break;
+		case DRIVE_REMOVABLE:
+			return m_floppyIcon;
+			break;
+		case DRIVE_REMOTE:
+			return m_networkIcon;
+			break;
+		default:
+			return m_driveIcon;
+			break;
+		}
+	}
+	
+	return info.isFile() ? m_emptyIcon : m_folderIcon;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Modified QFileSystemModel class
+///////////////////////////////////////////////////////////////////////////////
 
 QFileSystemModelEx::QFileSystemModelEx()
 :
 	QFileSystemModel()
 {
+	this->m_myIconProvider = new QFileIconProviderEx();
+	this->setIconProvider(m_myIconProvider);
 	this->setFilter(QDir::Dirs | QDir::NoDotAndDotDot);
+	this->setNameFilterDisables(false);
+}
+
+QFileSystemModelEx::~QFileSystemModelEx()
+{
+	LAMEXP_DELETE(m_myIconProvider);
 }
 
 bool QFileSystemModelEx::hasChildren(const QModelIndex &parent) const
 {
-	bool result = QFileSystemModel::hasChildren(parent);
-
-	if(parent.isValid() && result)
+	if(parent.isValid())
 	{
-		QFileInfo fileInfo = QFileSystemModel::fileInfo(parent);
-		if(fileInfo.isDir())
-		{
-			result = (QDir(fileInfo.absoluteFilePath()).entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot).count() > 0);
-		}
+		QDir dir = QDir(QFileSystemModel::filePath(parent));
+		return dir.exists() && (dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot).count() > 0);
 	}
 	
-	return result;
+	return true;
 }

src/Model_FileSystem.h

@@ -23,9 +23,16 @@
 
 #include <QFileSystemModel>
 
+class QFileIconProviderEx;
+
 class QFileSystemModelEx : public QFileSystemModel
 {
 public:
 	QFileSystemModelEx();
+	~QFileSystemModelEx();
+
 	virtual bool hasChildren(const QModelIndex &parent = QModelIndex()) const;
+
+private:
+	QFileIconProviderEx *m_myIconProvider;
 };