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public/vgui_controls/CircularProgressBar.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef CIRCULARPROGRESSBAR_H
+#define CIRCULARPROGRESSBAR_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include <vgui/VGUI.h>
+#include <vgui_controls/Panel.h>
+#include <vgui_controls/ProgressBar.h>
+
+enum progress_textures_t
+{
+	PROGRESS_TEXTURE_FG,
+	PROGRESS_TEXTURE_BG,
+
+	NUM_PROGRESS_TEXTURES,
+};
+
+namespace vgui
+{
+
+//-----------------------------------------------------------------------------
+// Purpose: Progress Bar in the shape of a pie graph
+//-----------------------------------------------------------------------------
+class CircularProgressBar : public ProgressBar
+{
+	DECLARE_CLASS_SIMPLE( CircularProgressBar, ProgressBar );
+
+public:
+	CircularProgressBar(Panel *parent, const char *panelName);
+	~CircularProgressBar();
+
+	virtual void ApplySettings(KeyValues *inResourceData);
+	virtual void ApplySchemeSettings(IScheme *pScheme);
+
+	void SetFgImage(const char *imageName) { SetImage( imageName, PROGRESS_TEXTURE_FG ); }
+	void SetBgImage(const char *imageName) { SetImage( imageName, PROGRESS_TEXTURE_BG ); }
+
+	enum CircularProgressDir_e
+	{
+		PROGRESS_CW,
+		PROGRESS_CCW
+	};
+	int GetProgressDirection() const { return m_iProgressDirection; }
+	void SetProgressDirection( int val ) { m_iProgressDirection = val; }
+	void SetStartSegment( int val ) { m_iStartSegment = val; }
+	void SetReverseProgress( bool bReverse ) { m_bReverseProgress = bReverse; }
+
+protected:
+	virtual void Paint();
+	virtual void PaintBackground();
+	
+	void DrawCircleSegment( Color c, float flEndDegrees, bool clockwise /* = true */ );
+	void SetImage(const char *imageName, progress_textures_t iPos);
+
+private:
+	int m_iProgressDirection;
+	int m_iStartSegment;
+	bool m_bReverseProgress;
+
+	int m_nTextureId[NUM_PROGRESS_TEXTURES];
+	char *m_pszImageName[NUM_PROGRESS_TEXTURES];
+	int   m_lenImageName[NUM_PROGRESS_TEXTURES];
+};
+
+} // namespace vgui
+
+#endif // CIRCULARPROGRESSBAR_H