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diff --git a/public/matsys_controls/sequencepicker.h b/public/matsys_controls/sequencepicker.h
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+++ b/public/matsys_controls/sequencepicker.h
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================
+
+#ifndef SEQUENCEPICKER_H
+#define SEQUENCEPICKER_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "tier1/utlstring.h"
+#include "vgui_controls/Frame.h"
+#include "vgui_controls/EditablePanel.h"
+#include "vgui_controls/ImageList.h"
+#include "datacache/imdlcache.h"
+#include "matsys_controls/mdlpanel.h"
+
+
+//-----------------------------------------------------------------------------
+// Forward declarations
+//-----------------------------------------------------------------------------
+namespace vgui
+{
+	class Splitter;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Sequence picker panel
+//-----------------------------------------------------------------------------
+class CSequencePicker : public vgui::EditablePanel
+{
+	DECLARE_CLASS_SIMPLE( CSequencePicker, vgui::EditablePanel );
+
+public:
+	enum PickType_t
+	{
+		PICK_NONE		= 0,
+		PICK_SEQUENCES	= 0x1,
+		PICK_ACTIVITIES = 0x2,
+		PICK_ALL		= 0xFFFFFFFF,
+	};
+
+	// Flags come from PickType_t
+	CSequencePicker( vgui::Panel *pParent, int nFlags = PICK_ALL );
+	~CSequencePicker();
+
+	// overridden frame functions
+	virtual void PerformLayout();
+
+	// Sets the MDL to preview sequences for
+	void SetMDL( const char *pMDLName );
+
+	// Gets the selected activity/sequence
+	PickType_t GetSelectedSequenceType();
+	const char *GetSelectedSequenceName( );
+
+private:
+	void RefreshActivitiesAndSequencesList();
+
+	// Plays the selected activity
+	void PlayActivity( const char *pActivityName );
+
+	// Plays the selected sequence
+	void PlaySequence( const char *pSequenceName );
+
+	MESSAGE_FUNC_PARAMS( OnItemSelected, "ItemSelected", kv );
+	MESSAGE_FUNC( OnPageChanged, "PageChanged" );
+
+	CMDLPanel *m_pMDLPreview;
+	vgui::Splitter* m_pPreviewSplitter;
+	vgui::PropertySheet *m_pViewsSheet;
+	vgui::PropertyPage *m_pSequencesPage;
+	vgui::PropertyPage *m_pActivitiesPage;
+	vgui::ListPanel *m_pSequencesList;
+	vgui::ListPanel *m_pActivitiesList;
+	MDLHandle_t m_hSelectedMDL;
+	CUtlString m_Filter;
+
+	friend class CSequencePickerFrame;
+};
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Main app window
+//-----------------------------------------------------------------------------
+class CSequencePickerFrame : public vgui::Frame
+{
+	DECLARE_CLASS_SIMPLE( CSequencePickerFrame, vgui::Frame );
+
+public:
+	CSequencePickerFrame( vgui::Panel *pParent, int nFlags );
+
+	// Inherited from Frame
+	virtual void OnCommand( const char *pCommand );
+
+	// Purpose: Activate the dialog
+	void DoModal( const char *pMDLName );
+
+private:
+	MESSAGE_FUNC_PARAMS( OnSequencePreviewChanged, "SequencePreviewChanged", kv );
+
+	CSequencePicker *m_pPicker;
+	vgui::Button *m_pOpenButton;
+	vgui::Button *m_pCancelButton;
+};
+
+
+#endif // SEQUENCEPICKER_H