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hammer/box3d.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef BOX3D_H
+#define BOX3D_H
+#pragma once
+
+
+#include "Tool3D.h"
+#include "BoundBox.h"
+
+
+class CMapView2D;
+class CRender3D;
+
+
+//
+// Formats for displaying world units.
+//
+enum WorldUnits_t
+{
+	Units_None,
+	Units_Inches,
+	Units_Feet_Inches,
+};
+
+
+class Box3D : public Tool3D, public BoundBox
+{
+
+public:
+
+	Box3D(void);
+
+	static inline void SetWorldUnits(WorldUnits_t eWorldUnits);
+	static inline WorldUnits_t GetWorldUnits(void);
+
+	//
+	// CBaseTool implementation.
+	//
+	virtual void SetEmpty();
+	virtual void RenderTool2D(CRender2D *pRender);
+	virtual void RenderTool3D(CRender3D *pRender);
+
+	virtual void UpdateStatusBar();
+
+protected:
+
+	enum
+	{
+		expandbox = 0x01,
+		thicklines = 0x04,
+		boundstext = 0x08,
+	};
+
+	enum TransformMode_t
+	{
+		modeNone = 0,
+		modeMove,
+		modeScale,
+		modeRotate,
+		modeShear,
+		modeLast,
+	};
+
+	void StartNew( CMapView *pView, const Vector2D &vPoint, const Vector &vecStart, const Vector &vecSize);
+
+	inline int GetTranslateMode() { return m_TranslateMode; }
+	
+	virtual void ToggleTranslateMode(void);
+	void EnableHandles(bool bEnable);
+
+	void SetDrawFlags(DWORD dwFlags);
+	DWORD GetDrawFlags() { return m_dwDrawFlags; }
+	void SetDrawColors(COLORREF dwHandleColor, COLORREF dwBoxColor);
+
+	virtual void GetStatusString(char *pszBuf);
+    unsigned long UpdateCursor(CMapView *pView, const Vector &vHandleHit, TransformMode_t eTransformMode);
+
+	void HandleToWorld( Vector &vWorld, const Vector &vHandle, const Vector *pCustomHandleBox = NULL);
+	const Vector NearestCorner(const Vector2D &vPoint, CMapView *pView, const Vector *pCustomHandleBox = NULL);
+	int GetVisibleHandles( Vector *handles, CMapView *, int nMode );
+
+	void RenderHandles2D(CRender2D *pRender, const Vector &mins, const Vector &maxs );
+	void RenderHandles3D(CRender3D *pRender, const Vector &mins, const Vector &maxs);
+	
+
+	//
+	// Tool3D implementation.
+	//
+
+public:
+	virtual int  HitTest(CMapView *pView, const Vector2D &ptClient, bool bTestHandles = false);
+	
+	// If pCustomHandleBox is non-null, it points at an array 2 vectors (min and max), and
+	// it will use those bounds to figure out the corners that it will align to the grid.
+	virtual void StartTranslation( CMapView *pView, const Vector2D &vPoint, const Vector &vHandleOrigin, const Vector *pRefPoint = NULL, const Vector *pCustomHandleBox = NULL );
+	
+	virtual bool UpdateTranslation(const Vector &vUpdate, UINT uConstraints);
+	virtual void FinishTranslation(bool bSave);
+	virtual void TranslatePoint(Vector& pt);
+			void TranslateBox(Vector& mins, Vector& maxs);
+	virtual const VMatrix& GetTransformMatrix();
+
+protected:
+
+			void UpdateTransformMatrix();
+
+	static WorldUnits_t m_eWorldUnits;
+
+	COLORREF m_clrHandle;
+	COLORREF m_clrBox;
+
+	TransformMode_t	m_TranslateMode;		// current translation mode	
+	Vector			m_TranslateHandle;		// current translation handle/corner
+	Vector			m_vTranslationFixPoint;	// fix point, meaning it remains unchanged by translation, eg rotation center etc.
+	VMatrix			m_TransformMatrix;
+	
+	bool			m_bEnableHandles;		// check/show handles yes/no
+	Vector			m_LastHitTestHandle;	// handle hit by last HitTest call
+	TransformMode_t	m_LastTranslateMode;	// last translate mode 
+	
+	bool	m_bPreventOverlap;
+	DWORD	m_dwDrawFlags;
+};
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+WorldUnits_t Box3D::GetWorldUnits(void)
+{
+	return(m_eWorldUnits);
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void Box3D::SetWorldUnits(WorldUnits_t eWorldUnits)
+{
+	m_eWorldUnits = eWorldUnits;
+}
+
+
+#endif // BOX3D_H