Click here to Skip to main content
15,884,472 members
Search within:


Articles / Desktop Programming / ATL
 

3D Graph ActiveX Control

Rate me:
Please Sign up or sign in to vote.
4.90/5 (100 votes)
2 Aug 2003MIT3 min read 771.2K   50K   284  
An ATL/STL ActiveX control based on OpenGL library for 3D data visualization
 
// GraphCtl.h : Declaration of the CGraphCtl
//
// Autor : Nikolai Teofilov  nteofilov@yahoo.de
//			
// Comment	: Use with your own risk !
//
// Copyright (c) 2003.

#ifndef __GRAPHCTL_H_
#define __GRAPHCTL_H_

#include "resource.h"       // main symbols
#include <atlctl.h>

#ifndef MAX
#define MAX 1
#endif

#ifndef MIN
#define MIN 0
#endif

class CPoint3D
{
public:
   float x, y, z;
   CPoint3D () { x=y=z=0; }
   CPoint3D (float c1, float c2, float c3)
   {
      x = c1;      y = c2;      z = c3;
   }
   CPoint3D& operator=(const CPoint3D& pt)
   {
      x = pt.x;   z = pt.z;   y = pt.y;
      return *this;
   }
   CPoint3D (const CPoint3D& pt)
   {
      *this = pt;
   }
   void Translate(double cx, double cy, double cz)
   {
	   x+=cx;
	   y+=cy;
	   z+=cz;
   }
};

using namespace std;
// Define a template class for a vector of 3D Points.
typedef vector<CPoint3D> POINTVECTOR;


// Enum to describe control's line style constants
enum LineType {Lines, Points, LinePoint, Surface};

//////////////////////////////////////////
// Declaration of the CGraphElement class.
// See NTGraphCtl.cpp for implementation.
class CElement 
{
public:
	CElement()
	{
		 min=max=CPoint3D(0,0,0);
		 bIsPlotAvailable = FALSE ;
		 m_bShow = TRUE;
		 m_bFill = TRUE;
		 m_bFlat = FALSE;
		 m_bLights = FALSE;
		 
		 ////// Initial lighting params //////
		 m_LightParam[0] = 40;	// X position
	 	 m_LightParam[1] = 100;	// Y position
		 m_LightParam[2] = 80;	// Z position
		 m_LightParam[3] = 80;	// Ambient light
		 m_LightParam[4] = 50;	// Diffuse light
		 m_LightParam[5] = 50;	// Specular light
		 m_LightParam[6] = 50;	// Ambient material
		 m_LightParam[7] = 50;	// Diffuse material
		 m_LightParam[8] = 40;	// Specular material
		 m_LightParam[9] = 70;	// Shininess material
		 m_LightParam[10] = 50;	// Emission material
		 
		 m_LineColor = m_PointColor = RGB(100,100,100);
		 m_nType  = LinePoint;
		 m_LineWidth = 0.0f;
		 m_PointSize = 0.0f;
	}

	BOOL bIsPlotAvailable;
	BOOL m_bShow;
	BOOL m_bFill;
	BOOL m_bFlat;
	BOOL m_bLights;
	int	m_LightParam[11];	// Graphics dimension (along X-axis)
	COLORREF m_LineColor;
	COLORREF m_PointColor;
	LineType m_nType;
	GLfloat	 m_LineWidth;
	GLfloat  m_PointSize;

	CPoint3D min,max;

	POINTVECTOR m_PointList;
};


// Define a template class for a vector of Elements.
typedef vector<CElement> ELEMENTVECTOR;

/////////////////////////////////////////////////////////////////////////////
// CGraphCtl
class ATL_NO_VTABLE CGraphCtl : 
	public CComObjectRootEx<CComSingleThreadModel>,
	public CStockPropImpl<CGraphCtl, IGraph3D, &IID_IGraph3D, &LIBID_NTGRAPH3DLib>,
	public CComControl<CGraphCtl>,
	public IPersistStreamInitImpl<CGraphCtl>,
	public IOleControlImpl<CGraphCtl>,
	public IOleObjectImpl<CGraphCtl>,
	public IOleInPlaceActiveObjectImpl<CGraphCtl>,
	public IViewObjectExImpl<CGraphCtl>,
	public IOleInPlaceObjectWindowlessImpl<CGraphCtl>,
	public IPersistStorageImpl<CGraphCtl>,
	public ISpecifyPropertyPagesImpl<CGraphCtl>,
	public IQuickActivateImpl<CGraphCtl>,
	public IDataObjectImpl<CGraphCtl>,
	public IProvideClassInfo2Impl<&CLSID_NTGraph3D, NULL, &LIBID_NTGRAPH3DLib>,
	public CComCoClass<CGraphCtl, &CLSID_NTGraph3D>
{

   // Enum to describe tracking mode state, border and projection style constants.
   enum TrackModeState {None, Zoom, Rotate, Pan};   
   enum ProjectionStyle {Perspective, Orthographic};
   enum Borderstyle {none = 0, bump = 1, etched = 2, raised = 3};


public:
	CGraphCtl()
	{
		m_bMouseCaptured = FALSE;
		m_bstrCaption = _T("NTGraph3D");
		m_bWindowOnly = TRUE;
		m_wAngleY = -45.0f;
		m_wAngleX = 30.0f;
		m_wAngleZ = 0.0f;
		m_pPal = NULL;
		m_hPal = NULL;
		m_hrc = NULL;

		bIsPlotAvailable= FALSE;

		m_nTrackState = None;

		m_bstrXLabel = "X";
		m_bstrYLabel = "Y";
		m_bstrZLabel = "Z";

		m_clrBackColor = RGB(255,255,255);
		m_clrXGridColor = RGB(255,0,0);
		m_clrYGridColor = RGB(0,255,0);
		m_clrZGridColor = RGB(0,0,255);
		m_clrCaptionColor = RGB(128,128,255);

		m_nProjection = Perspective; //set perspective projection

		m_nGridX = 2;
		m_nGridY = 2;
		m_nGridZ = 2;		

		SetRange(0,1,0,1,0,1);
		
		dAutoRangeX[MIN] = 0;
		dAutoRangeX[MAX] = 0;
		dAutoRangeY[MIN] = 0;
		dAutoRangeY[MAX] = 0;
		dAutoRangeZ[MIN] = 0;
		dAutoRangeZ[MAX] = 0;

	}

	~CGraphCtl()
	{
		if (m_pPal)
		{
			delete[] m_pPal;
			m_pPal = NULL;
		}
		if (m_hPal)
			DeleteObject(m_hPal);

		// Delete Element List
		if(!m_ElementList.empty())
				m_ElementList.clear ();
	}


	void SetBkColor(COLORREF rgb)
	{
		float r=float(GetRValue(rgb))/255;
		float g=float(GetGValue(rgb))/255;
		float b=float(GetBValue(rgb))/255;
		glClearColor(r,g,b,10.0f);

		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	}

	void SetColor(COLORREF rgb)
	{
		float r=float(GetRValue(rgb))/255;
		float g=float(GetGValue(rgb))/255;
		float b=float(GetBValue(rgb))/255;
		glColor3f(r,g,b);
	}

	void SetLight (CElement *pElement);


DECLARE_REGISTRY_RESOURCEID(IDR_GRAPHCTL)

DECLARE_PROTECT_FINAL_CONSTRUCT()

BEGIN_COM_MAP(CGraphCtl)
	COM_INTERFACE_ENTRY(IGraph3D)
	COM_INTERFACE_ENTRY(IDispatch)
	COM_INTERFACE_ENTRY(IViewObjectEx)
	COM_INTERFACE_ENTRY(IViewObject2)
	COM_INTERFACE_ENTRY(IViewObject)
	COM_INTERFACE_ENTRY(IOleInPlaceObjectWindowless)
	COM_INTERFACE_ENTRY(IOleInPlaceObject)
	COM_INTERFACE_ENTRY2(IOleWindow, IOleInPlaceObjectWindowless)
	COM_INTERFACE_ENTRY(IOleInPlaceActiveObject)
	COM_INTERFACE_ENTRY(IOleControl)
	COM_INTERFACE_ENTRY(IOleObject)
	COM_INTERFACE_ENTRY(IPersistStreamInit)
	COM_INTERFACE_ENTRY2(IPersist, IPersistStreamInit)
	COM_INTERFACE_ENTRY(ISpecifyPropertyPages)
	COM_INTERFACE_ENTRY(IQuickActivate)
	COM_INTERFACE_ENTRY(IPersistStorage)
	COM_INTERFACE_ENTRY(IDataObject)
	COM_INTERFACE_ENTRY(IProvideClassInfo)
	COM_INTERFACE_ENTRY(IProvideClassInfo2)
END_COM_MAP()

BEGIN_PROP_MAP(CGraphCtl)
	PROP_DATA_ENTRY("_cx", m_sizeExtent.cx, VT_UI4)
	PROP_DATA_ENTRY("_cy", m_sizeExtent.cy, VT_UI4)
	PROP_ENTRY("Appearance", DISPID_APPEARANCE, CLSID_NULL)
	PROP_ENTRY("BackColor", DISPID_BACKCOLOR, CLSID_StockColorPage)
	PROP_ENTRY("BorderStyle", DISPID_BORDERSTYLE, CLSID_NULL)
	PROP_ENTRY("BorderVisible", DISPID_BORDERVISIBLE, CLSID_NULL)
	PROP_ENTRY("Caption", DISPID_CAPTION, CLSID_NULL)
	PROP_ENTRY("Font", DISPID_FONT, CLSID_StockFontPage)
	// Example entries
	// PROP_ENTRY("Property Description", dispid, clsid)
	// PROP_PAGE(CLSID_StockColorPage)
END_PROP_MAP()

BEGIN_MSG_MAP(CGraphCtl)
	CHAIN_MSG_MAP(CComControl<CGraphCtl>)
	DEFAULT_REFLECTION_HANDLER()
	MESSAGE_HANDLER(WM_PAINT, OnPaint)
	MESSAGE_HANDLER(WM_CREATE, OnCreate)
	MESSAGE_HANDLER(WM_DESTROY, OnDestroy)
	MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
	MESSAGE_HANDLER(WM_LBUTTONUP, OnLButtonUP)
	MESSAGE_HANDLER(WM_MOUSEMOVE, OnMouseMove)
	MESSAGE_HANDLER(WM_SIZE, OnSize)
	MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBackground)
END_MSG_MAP()
// Handler prototypes:
//  LRESULT MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
//  LRESULT CommandHandler(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled);
//  LRESULT NotifyHandler(int idCtrl, LPNMHDR pnmh, BOOL& bHandled);



// IViewObjectEx
	DECLARE_VIEW_STATUS(VIEWSTATUS_SOLIDBKGND | VIEWSTATUS_OPAQUE)

// IGraph3D
public:
	STDMETHOD(get_Lighting)(short ElementID, /*[out, retval]*/ BOOL *pVal);
	STDMETHOD(put_Lighting)(short ElementID, /*[in]*/ BOOL newVal);
	STDMETHOD(CopyToClipboard)();
	STDMETHOD(SetLightCoordinates)(short ElementID, float x, float y, float z);
	STDMETHOD(get_ElementMaterialEmission)(short ElementID, /*[out, retval]*/ short *pVal);
	STDMETHOD(put_ElementMaterialEmission)(short ElementID, /*[in]*/ short newVal);
	STDMETHOD(get_ElementMaterialShinines)(short ElementID, /*[out, retval]*/ short *pVal);
	STDMETHOD(put_ElementMaterialShinines)(short ElementID, /*[in]*/ short newVal);
	STDMETHOD(get_ElementMaterialSpecular)(short ElementID, /*[out, retval]*/ short *pVal);
	STDMETHOD(put_ElementMaterialSpecular)(short ElementID, /*[in]*/ short newVal);
	STDMETHOD(get_ElementMaterialDiffuse)(short ElementID, /*[out, retval]*/ short *pVal);
	STDMETHOD(put_ElementMaterialDiffuse)(short ElementID, /*[in]*/ short newVal);
	STDMETHOD(get_ElementMaterialAmbient)(short ElementID, /*[out, retval]*/ short *pVal);
	STDMETHOD(put_ElementMaterialAmbient)(short ElementID, /*[in]*/ short newVal);
	STDMETHOD(get_ElementLightingSpecular)(short ElementID, /*[out, retval]*/ short *pVal);
	STDMETHOD(put_ElementLightingSpecular)(short ElementID, /*[in]*/ short newVal);
	STDMETHOD(get_ElementLightingDiffuse)(short ElementID, /*[out, retval]*/ short *pVal);
	STDMETHOD(put_ElementLightingDiffuse)(short ElementID, /*[in]*/ short newVal);
	STDMETHOD(get_ElementLightingAmbient)(short ElementID, /*[out, retval]*/ short *pVal);
	STDMETHOD(put_ElementLightingAmbient)(short ElementID, /*[in]*/ short newVal);
	STDMETHOD(get_ElementLight)(short ElementID, /*[out, retval]*/ BOOL *pVal);
	STDMETHOD(put_ElementLight)(short ElementID, /*[in]*/ BOOL newVal);
	STDMETHOD(get_ElementSurfaceFlat)(short ElementID, /*[out, retval]*/ BOOL *pVal);
	STDMETHOD(put_ElementSurfaceFlat)(short ElementID, /*[in]*/ BOOL newVal);
	STDMETHOD(get_ElementSurfaceFill)(short ElementID, /*[out, retval]*/ BOOL *pVal);
	STDMETHOD(put_ElementSurfaceFill)(short ElementID, /*[in]*/ BOOL newVal);
	STDMETHOD(get_ElementShow)(short ElementID, /*[out, retval]*/ BOOL *pVal);
	STDMETHOD(put_ElementShow)(short ElementID, /*[in]*/ BOOL newVal);
	STDMETHOD(PlotXYZ)(double x, double y, double z, short ElementID);
	STDMETHOD(get_ElementType)(short ElementID, /*[out, retval]*/ short *pVal);
	STDMETHOD(put_ElementType)(short ElementID, /*[in]*/ short newVal);
	STDMETHOD(get_ElementPointSize)(short ElementID, /*[out, retval]*/ float *pVal);
	STDMETHOD(put_ElementPointSize)(short ElementID, /*[in]*/ float newVal);
	STDMETHOD(get_ElementLineWidth)(short ElementID, /*[out, retval]*/ float *pVal);
	STDMETHOD(put_ElementLineWidth)(short ElementID, /*[in]*/ float newVal);
	STDMETHOD(get_ElementPointColor)(short ElementID, /*[out, retval]*/ OLE_COLOR *pVal);
	STDMETHOD(put_ElementPointColor)(short ElementID, /*[in]*/ OLE_COLOR newVal);
	STDMETHOD(get_ElementLineColor)(short ElementID, /*[out, retval]*/ OLE_COLOR *pVal);
	STDMETHOD(put_ElementLineColor)(short ElementID, /*[in]*/ OLE_COLOR newVal);
	STDMETHOD(ClearGraph)();
	STDMETHOD(DeleteElement)(short ElementID);
	STDMETHOD(AddElement)();
	STDMETHOD(get_ZGridColor)(/*[out, retval]*/ OLE_COLOR *pVal);
	STDMETHOD(put_ZGridColor)(/*[in]*/ OLE_COLOR newVal);
	STDMETHOD(get_YGridColor)(/*[out, retval]*/ OLE_COLOR *pVal);
	STDMETHOD(put_YGridColor)(/*[in]*/ OLE_COLOR newVal);
	STDMETHOD(get_XGridColor)(/*[out, retval]*/ OLE_COLOR *pVal);
	STDMETHOD(put_XGridColor)(/*[in]*/ OLE_COLOR newVal);
	STDMETHOD(get_ZGridNumber)(/*[out, retval]*/ short *pVal);
	STDMETHOD(put_ZGridNumber)(/*[in]*/ short newVal);
	STDMETHOD(get_YGridNumber)(/*[out, retval]*/ short *pVal);
	STDMETHOD(put_YGridNumber)(/*[in]*/ short newVal);
	STDMETHOD(get_XGridNumber)(/*[out, retval]*/ short *pVal);
	STDMETHOD(put_XGridNumber)(/*[in]*/ short newVal);
	STDMETHOD(get_ZLabel)(/*[out, retval]*/ BSTR *pVal);
	STDMETHOD(put_ZLabel)(/*[in]*/ BSTR newVal);
	STDMETHOD(get_YLabel)(/*[out, retval]*/ BSTR *pVal);
	STDMETHOD(put_YLabel)(/*[in]*/ BSTR newVal);
	STDMETHOD(get_XLabel)(/*[out, retval]*/ BSTR *pVal);
	STDMETHOD(put_XLabel)(/*[in]*/ BSTR newVal);
	STDMETHOD(get_Projection)(/*[out, retval]*/ short *pVal);
	STDMETHOD(put_Projection)(/*[in]*/ short newVal);
	STDMETHOD(get_TrackMode)(/*[out, retval]*/ short *pVal);
	STDMETHOD(put_TrackMode)(/*[in]*/ short newVal);
	STDMETHOD(ShowPropertyPages)();
	STDMETHOD(AutoRange)();
	STDMETHOD(SetRange)(double xmin, double xmax, double ymin, double ymax, double zmin, double zmax);
	STDMETHOD(get_CaptionColor)(/*[out, retval]*/ OLE_COLOR *pVal);
	STDMETHOD(put_CaptionColor)(/*[in]*/ OLE_COLOR newVal);

	short m_nAppearance;
	LONG m_nBorderStyle;
	BOOL m_bBorderVisible;
	CComPtr<IFontDisp> m_pFont;

	OLE_COLOR m_clrBackColor;
	OLE_COLOR m_clrCaptionColor;
	OLE_COLOR m_clrXGridColor;
	OLE_COLOR m_clrYGridColor;
	OLE_COLOR m_clrZGridColor;

	CComBSTR m_bstrCaption; 
	CComBSTR m_bstrXLabel;
    CComBSTR m_bstrYLabel;
    CComBSTR m_bstrZLabel;

	long m_nProjection;
	short m_nTrackState;

	float m_fRadius;
	BOOL m_bMouseCaptured;
	int m_xPos;
	int m_yPos;
	GLfloat  m_wAngleY;
	GLfloat  m_wAngleX;
	GLfloat  m_wAngleZ;

	HGLRC m_hrc;
	HPALETTE m_hPal;
	LOGPALETTE *m_pPal;

	BOOL bIsPlotAvailable;

	int m_nGridX; 	// XGridNumber					
	int m_nGridY;	// YGridNumber
	int m_nGridZ;   // ZGridNumber

	double dRangeX[2];
	double dRangeY[2];
	double dRangeZ[2];

	double dAutoRangeX[2];
	double dAutoRangeY[2];
	double dAutoRangeZ[2];

	ELEMENTVECTOR m_ElementList; // Element List

	void DrawGraph(HDC hdc, RECT rc);
    void DrawBorder(HDC hdc, RECT rc);	
	void DrawAxis();
	void DrawAxisBox();
	void DrawAxisGrid();
	void DrawAxisLabels(HDC hdc);
	void PlotElement();
	void DrawGraphTitle(HDC hdc, RECT rc);
	void DoPan(int ptX, int ptY);
	void PrintText(HDC hdc, CPoint3D pt, const char *);
	BOOL PtInRange(CPoint3D *pt);
	BOOL PtInAxisBox(CPoint3D* pt);
	CPoint3D Corrdinate(CPoint3D *point);

	BOOL bSetupPixelFormat(HDC hdc);
	void CreateContext(HDC hdc, RECT& rc);
	void CreateRGBPalette(HDC hdc);
	unsigned char ComponentFromIndex(int i, UINT nbits, UINT shift);

	STDMETHODIMP put_Caption(BSTR pCaption)
	{
		USES_CONVERSION;
		ATLTRACE(_T("INTGraph3D::put_Caption\n"));
		m_bstrCaption = pCaption;
		return S_OK;
	}
	STDMETHODIMP get_Caption(BSTR* ppCaption)
	{
		ATLTRACE(_T("INTGraph3D::get_Caption\n"));
		*ppCaption = m_bstrCaption.Copy();
		return S_OK;
	}
	HRESULT OnDraw(ATL_DRAWINFO& di);
	LRESULT OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
	LRESULT OnDestroy(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
	LRESULT OnLButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
	LRESULT OnLButtonUP(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
	LRESULT OnMouseMove(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
	LRESULT OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
	{
		::wglMakeCurrent(NULL,  NULL);
		if (m_hrc)
		{
			::wglDeleteContext(m_hrc);
			m_hrc = NULL;
		}
		HDC hdc = GetDC();
		RECT rc;
		GetClientRect(&rc);
		CreateContext(hdc, rc);
		return 0;
	}
	LRESULT OnEraseBackground(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
	{
		return 0;
	}
	STDMETHOD(GetColorSet)(DWORD dwDrawAspect,LONG lindex, void* pvAspect, DVTARGETDEVICE* ptd, HDC hicTargetDev, LOGPALETTE** ppColorSet)
	{
		ATLTRACE(_T("GetColorSet\n"));
		if (ppColorSet == NULL)
			return E_POINTER;
		HRESULT hr = S_FALSE;
		*ppColorSet = NULL;
		if (m_pPal != NULL)
		{
			int nSize = sizeof(LOGPALETTE) + m_pPal->palNumEntries * sizeof(PALETTEENTRY);
			*ppColorSet = (PLOGPALETTE) CoTaskMemAlloc(nSize);
			if (*ppColorSet == NULL)
				hr = E_OUTOFMEMORY;
			else
			{
				memcpy(*ppColorSet, m_pPal, nSize);
				hr = S_OK;
			}
		}
		return hr;
	}

};

#endif //__GRAPHCTL_H_

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The MIT License


Written By
Nikolai Teofilov
Germany Germany
This member has not yet provided a Biography. Assume it's interesting and varied, and probably something to do with programming.

Comments and Discussions

Permalink
Advertise
Privacy
Cookies
Terms of Use
Layout: fixed | fluid

Posted 15 Jun 2003

Article Copyright 2003 by Nikolai Teofilov
Everything else Copyright © CodeProject, 1999-2024

Web02 2.8:2024-04-02:1