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hammer/Selection.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: The document. Exposes functions for object creation, deletion, and
+//			manipulation. Holds the current tool. Handles GUI messages that are
+//			view-independent.
+//
+//=============================================================================//
+
+#ifndef SELECTIONMANAGER_H
+#define SELECTIONMANAGER_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "mapclass.h"
+
+class CMapDoc;
+
+enum
+{
+	hitFirst = 0,
+	hitNext = -1,
+	hitPrev = -2
+};
+
+// SelectObject/SelectFace parameters:
+typedef enum
+{
+	scToggle = 0x01,			// toogle selection state of this object
+	scSelect = 0x02,			// select this object
+	scUnselect = 0x04,			// unselect this object
+	scClear = 0x10,				// Clear current before selecting
+	scNoLift = 0x20,			// Don't lift face attributes into Face Properties dialog   dvs: lame!
+	scNoApply = 0x40,			// Don't apply face attributes from Face Properties dialog to selected face   dvs: lame!
+	scCascading = 0x80,				// Select all entities attached to outputs of this entity
+	scCascadingRecursive = 0x100,	// Select all entities attached to outputs of this entity, recursively
+	scSelectAll = 0x200,
+	scSaveChanges = 0x400,		// changing the selection causes changes made in the properties dialog be saved
+};
+
+
+class CSelection
+{
+public:
+	CSelection(void);
+	virtual ~CSelection(void);
+
+	void	Init(CMapDoc *pDocument);
+	
+	bool	SelectObject(CMapClass *pobj, int cmd = scSelect);
+	void	SelectObjectList(const CMapObjectList *pList, int cmd = (scClear|scSelect|scSaveChanges) );
+	
+	bool	RemoveAll();		// true if any elements were removed
+	bool	RemoveInvisibles(); // true if any elements were removed
+	bool	RemoveDead();		// true if any elements were removed
+
+	int		GetCount();
+	bool	IsEmpty();
+	bool	IsSelected(CMapClass *pObject);
+	bool	IsAnEntitySelected();
+	bool	IsEditable();
+	bool	IsCopyable();
+	
+
+	const CMapObjectList* GetList(void);
+	CMapDoc *GetMapDoc() { return m_pDocument; }
+
+	// HitList feature
+	const CMapObjectList* GetHitList(void);
+	void ClearHitList();
+	void AddHit(CMapClass *pObject);
+	void SetCurrentHit(int iIndex, bool bCascading = false);
+	
+	SelectMode_t GetMode(void);
+	void SetMode(SelectMode_t eSelectMode);
+	void SetSelectionState(SelectionState_t eSelectionState);
+	
+    bool GetBounds(Vector &vecMins, Vector &vecMaxs);
+	
+	// Used for translations. Uses entity origins and brush bounds. That way, when moving stuff,
+	// the entity origins will stay on the grid.
+	void GetBoundsForTranslation( Vector &vecMins, Vector &vecMaxs );
+
+	bool GetBoundsCenter(Vector &vecCenter);
+	void GetLastValidBounds(Vector &vecMins, Vector &vecMaxs);
+	bool GetLogicalBounds(Vector2D &vecMins, Vector2D &vecMaxs);
+	bool GetLogicalBoundsCenter( Vector2D &vecCenter );
+
+	void SetBoundsDirty() {m_bBoundsDirty = true;}
+	
+protected:
+
+	void UpdateSelectionBounds();
+
+	CMapDoc			*m_pDocument;		// document this selection set belongs to
+	SelectMode_t	m_eSelectMode;		// Controls what gets selected based on what the user clicked on.
+	CMapObjectList	m_SelectionList;	// The list of selected objects.
+
+	bool			m_bBoundsDirty;		// recalc bounds box with next query
+
+	BoundBox	m_Bounds;				// current bounds
+	BoundBox	m_LastValidBounds;		// last valid selection bounds
+	
+	Vector2D m_vecLogicalMins;		// Selection bounds in "logical" space
+	Vector2D m_vecLogicalMaxs;
+
+	// Hit selection.
+	CMapObjectList	m_HitList; // list of 'hit' object (potential selected object)
+	int				m_iCurHit; // current hit or -1
+
+	
+	
+
+};
+
+#endif // SELECTIONMANAGER_H