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hammer/mapview.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Data and functionality common to 2D and 3D views.
+//
+//===========================================================================//
+
+#ifndef MAPVIEW_H
+#define MAPVIEW_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+class CWnd;
+class CView;
+class CMapAtom;
+class CMapClass;
+class CMapDoc;
+class CCamera;
+class CToolManager;
+
+#include "mathlib/vector.h"
+
+//
+// Maximum number of hits that can be returned by ObjectsAt.
+//
+#define MAX_PICK_HITS			512
+
+typedef struct HitInfo_s HitInfo_t;
+
+
+enum DrawType_t
+{
+	VIEW_INVALID = -1,
+	VIEW2D_XY = 0,
+	VIEW2D_YZ,
+	VIEW2D_XZ,
+
+	VIEW3D_WIREFRAME,
+	VIEW3D_POLYGON,
+	VIEW3D_TEXTURED,
+	VIEW3D_LIGHTMAP_GRID,
+	VIEW3D_SMOOTHING_GROUP,
+	VIEW3D_ENGINE,
+	VIEW3D_TEXTURED_SHADED,
+
+	VIEW_LOGICAL,
+
+	VIEW3D_LIGHTING_PREVIEW2,
+	VIEW3D_LIGHTING_PREVIEW_RAYTRACED,
+	// Must be last!
+	VIEW_TYPE_LAST
+};
+
+
+#define FLAG_OBJECTS_AT_RESOLVE_INSTANCES	0x0000001
+#define FLAG_OBJECTS_AT_ONLY_SOLIDS			0x0000002
+
+
+class CMapView
+{
+public:
+
+	CMapView(void);
+
+	virtual void	ActivateView(bool bActivate);
+	inline bool		IsActive(void) { return(m_bActive); }
+	bool	IsOrthographic();
+
+	virtual void		SetDrawType(DrawType_t eDrawType) { m_eDrawType = eDrawType; }
+	virtual DrawType_t	GetDrawType(void) { return m_eDrawType; }
+
+	// virtual CMapClass	*ObjectAt(POINT ptClient, ULONG &ulFace) = 0;
+				
+	virtual void ProcessInput() = 0; // do input update
+	virtual void RenderView() = 0;	// render view NOW, called usually by framework
+	virtual void UpdateView( int nFlags ); // something changed, render this view with the next frame
+	virtual bool ShouldRender(); // let view decide if it wants to render or not
+		
+	virtual CWnd	*GetViewWnd() = 0;
+	virtual CMapDoc	*GetMapDoc() = 0;
+			
+	// get axis we look along
+	virtual const Vector &GetViewAxis();
+	void SetCamera(const Vector &vecPos, const Vector &vecLookAt);
+	CCamera *GetCamera() { return m_pCamera; }
+
+	// convert client view space to map world coordinates 
+	// general rule: float = world, int = client view
+	virtual void WorldToClient(Vector2D &ptClient, const Vector &vWorld) = 0;
+	virtual void ClientToWorld(Vector &vWorld, const Vector2D &vClient ) = 0;
+	virtual void BuildRay( const Vector2D &ptClient, Vector& vStart, Vector& vEnd );
+	virtual int  ObjectsAt( const Vector2D &ptClient, HitInfo_t *pObjects, int nMaxObjects, unsigned int nFlags = 0 ) = 0;
+	virtual bool HitTest( const Vector2D &ptClient, const Vector& mins, const Vector& maxs ) = 0;
+	virtual void GetBestTransformPlane( Vector &horzAxis, Vector &vertAxis, Vector &thirdAxis) = 0;
+
+	bool SelectAt(const Vector2D &ptClient, bool bMakeFirst, bool bFace);
+		
+		
+		
+	// protected:
+
+	bool			m_bActive;
+	bool			m_bUpdateView;
+	DrawType_t		m_eDrawType;
+	unsigned int	m_dwTimeLastRender;
+	CCamera			*m_pCamera;			// Defines the camera position and settings for this view.
+	CToolManager	*m_pToolManager;	// tool manager for this view
+	int				m_nRenderedFrames;
+	int m_nLastRaytracedBitmapRenderTimeStamp;
+
+};
+
+#endif // MAPVIEW_H