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game/client/hud.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: CHud handles the message, calculation, and drawing the HUD
+//
+// $NoKeywords: $
+//=============================================================================//
+#ifndef HUD_H
+#define HUD_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "utlvector.h"
+#include "utldict.h"
+#include "convar.h"
+#include <vgui/VGUI.h>
+#include <Color.h>
+#include <bitbuf.h>
+
+namespace vgui
+{
+	class IScheme;
+}
+
+// basic rectangle struct used for drawing
+typedef struct wrect_s
+{
+	int	left;
+	int right;
+	int top;
+	int bottom;
+} wrect_t;
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+class CHudTexture
+{
+public:
+	CHudTexture();
+	CHudTexture& operator =( const CHudTexture& src );
+	virtual ~CHudTexture();
+
+	int Width() const
+	{
+		return rc.right - rc.left;
+	}
+
+	int Height() const
+	{
+		return rc.bottom - rc.top;
+	}
+
+	// causes the font manager to generate the glyph, prevents run time hitches on platforms that have slow font managers
+	void Precache( void );
+
+	// returns width & height of icon with scale applied (scale is ignored if font is used to render)
+	int EffectiveWidth( float flScale ) const;
+	int EffectiveHeight( float flScale ) const;
+
+	void DrawSelf( int x, int y, const Color& clr ) const;
+	void DrawSelf( int x, int y, int w, int h, const Color& clr ) const;
+	void DrawSelfCropped( int x, int y, int cropx, int cropy, int cropw, int croph, Color clr ) const;
+	// new version to scale the texture over a finalWidth and finalHeight passed in
+	void DrawSelfCropped( int x, int y, int cropx, int cropy, int cropw, int croph, int finalWidth, int finalHeight, Color clr ) const;
+
+	char		szShortName[ 64 ];
+	char		szTextureFile[ 64 ];
+
+	bool		bRenderUsingFont;
+	bool		bPrecached;
+	char		cCharacterInFont;
+	vgui::HFont hFont;
+
+	// vgui texture Id assigned to this item
+	int			textureId;
+	// s0, t0, s1, t1
+	float		texCoords[ 4 ];
+
+	// Original bounds
+	wrect_t		rc;
+};
+
+#include "hudtexturehandle.h"
+
+class CHudElement;
+class CHudRenderGroup;
+
+//-----------------------------------------------------------------------------
+// Purpose: Main hud manager
+//-----------------------------------------------------------------------------
+class CHud 
+{
+public:
+	//For progress bar orientations
+	static const int			HUDPB_HORIZONTAL;
+	static const int			HUDPB_VERTICAL;
+	static const int			HUDPB_HORIZONTAL_INV;
+
+public:
+								CHud();
+								~CHud();
+
+	// Init's called when the HUD's created at DLL load
+	void						Init( void );
+	// VidInit's called when the video mode's changed
+	void						VidInit( void );
+	// Shutdown's called when the engine's shutting down
+	void						Shutdown( void );
+	// LevelInit's called whenever a new level is starting
+	void						LevelInit( void );
+	// LevelShutdown's called whenever a level is finishing
+	void						LevelShutdown( void );
+	
+	void						ResetHUD( void );
+
+	// A saved game has just been loaded
+	void						OnRestore();
+
+	void						Think();
+
+	void						ProcessInput( bool bActive );
+	void						UpdateHud( bool bActive );
+
+	void						InitColors( vgui::IScheme *pScheme );
+
+	// Hud element registration
+	void						AddHudElement( CHudElement *pHudElement );
+	void						RemoveHudElement( CHudElement *pHudElement );
+	// Search list for "name" and return the hud element if it exists
+	CHudElement					*FindElement( const char *pName );
+	
+	bool						IsHidden( int iHudFlags );
+
+	float						GetSensitivity();
+	float						GetFOVSensitivityAdjust();
+
+	void						DrawProgressBar( int x, int y, int width, int height, float percentage, Color& clr, unsigned char type );
+	void						DrawIconProgressBar( int x, int y, CHudTexture *icon, CHudTexture *icon2, float percentage, Color& clr, int type );
+
+	CHudTexture					*GetIcon( const char *szIcon );
+
+	// loads a new icon into the list, without duplicates
+	CHudTexture					*AddUnsearchableHudIconToList( CHudTexture& texture );
+	CHudTexture					*AddSearchableHudIconToList( CHudTexture& texture );
+
+	void						RefreshHudTextures();
+
+	// User messages
+	void						MsgFunc_ResetHUD(bf_read &msg);
+	void 						MsgFunc_SendAudio(bf_read &msg);
+
+	// Hud Render group
+	int							LookupRenderGroupIndexByName( const char *pszGroupName );
+	bool						LockRenderGroup( int iGroupIndex, CHudElement *pLocker = NULL );
+	bool						UnlockRenderGroup( int iGroupIndex, CHudElement *pLocker = NULL );
+	bool						IsRenderGroupLockedFor( CHudElement *pHudElement, int iGroupIndex );
+	int							RegisterForRenderGroup( const char *pszGroupName );
+	int							AddHudRenderGroup( const char *pszGroupName );
+	bool						DoesRenderGroupExist( int iGroupIndex );
+
+	void						SetScreenShotTime( float flTime ){ m_flScreenShotTime = flTime; }
+
+	// Walk through all the HUD elements. Handler should be an object taking a CHudElement*
+	template<typename THandler> void ForEachHudElement( THandler handler )
+	{
+		FOR_EACH_VEC( m_HudList, i )
+		{
+			handler( m_HudList[i] );
+		}
+	}
+
+public:
+
+	int							m_iKeyBits;
+#ifndef _XBOX
+	float						m_flMouseSensitivity;
+	float						m_flMouseSensitivityFactor;
+#endif
+	float						m_flFOVSensitivityAdjust;
+
+	Color						m_clrNormal;
+	Color						m_clrCaution;
+	Color						m_clrYellowish;
+
+	CUtlVector< CHudElement * >	m_HudList;
+
+private:
+	void						InitFonts();
+
+	void						SetupNewHudTexture( CHudTexture *t );
+
+	bool						m_bHudTexturesLoaded;
+
+	// Global list of known icons
+	CUtlDict< CHudTexture *, int >		m_Icons;
+
+	CUtlVector< const char * >				m_RenderGroupNames;
+	CUtlMap< int, CHudRenderGroup * >		m_RenderGroups;
+
+	float						m_flScreenShotTime; // used to take end-game screenshots
+};
+
+extern CHud gHUD;
+
+//-----------------------------------------------------------------------------
+// Global fonts used in the client DLL
+//-----------------------------------------------------------------------------
+extern vgui::HFont g_hFontTrebuchet24;
+
+void LoadHudTextures( CUtlDict< CHudTexture *, int >& list, const char *szFilenameWithoutExtension, const unsigned char *pICEKey );
+
+void GetHudSize( int& w, int &h );
+
+#endif // HUD_H