249 lines
9.0 KiB
C
249 lines
9.0 KiB
C
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#if !defined(AFX_GLENABLEDVIEW_H__59CED13F_E584_11D1_ACB3_E52ED8AC9002__INCLUDED_)
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#define AFX_GLENABLEDVIEW_H__59CED13F_E584_11D1_ACB3_E52ED8AC9002__INCLUDED_
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#if _MSC_VER >= 1000
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#pragma once
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#endif // _MSC_VER >= 1000
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/////////////////////////////////////////////////////////////////////////////
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// CGLEnabledView.h : header file
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//
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/////////////////////////////////////////////////////////////////////////////
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// Global type definitions
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enum ColorsNumber{INDEXED,THOUSANDS,MILLIONS,MILLIONS_WITH_TRANSPARENCY};
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enum ZAccuracy{NORMAL,ACCURATE};
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struct GLInfoStruct
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{
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CString vendor;
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CString renderer;
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CString acceleration;
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CString glextensions;
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CString glversion;
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CString gluextensions;
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CString gluversion;
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int max_lights;
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int max_clip_planes;
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int max_model_stack_depth;
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int max_proj_stack_depth;
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int max_txtr_stack_depth;
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int max_name_stack_depth;
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int max_attrib_stack_depth;
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int max_texture_size;
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int max_list_nesting;
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int max_eval_order;
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CSize max_viewport_dims;
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int auxiliary_buffers;
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int max_smooth_point_size;
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int min_smooth_point_size;
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float smooth_point_granularity;
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int max_smooth_line_size;
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int min_smooth_line_size;
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float smooth_line_granularity;
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int red_bits;
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int blue_bits;
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int green_bits;
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int alpha_bits;
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int depth_bits;
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int stencil_bits;
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};
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/////////////////////////////////////////////////////////////////////////////
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// CGLEnabledView view
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class CGLEnabledView : public CView
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{
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protected:
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CGLEnabledView();// protected constructor used by dynamic creation
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DECLARE_DYNCREATE(CGLEnabledView)
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/** CGLDispList
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DESC:-this is an helper class which let you create "display list objects",
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use these objects to define the key elements in your scene (a disp.
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list is faster than the corresponding GL commands).
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-Through the class members functions you have total control on a
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single display list.
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-An isolated display list save OGL parameters before execution
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(so it's not affected by preceding transformations or settings).
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*******/
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class CGLDispList
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{
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friend class CGLEnabledView;
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private:
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BOOL m_bIsolated;
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int m_glListId;
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public:
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CGLDispList(); // constructor
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~CGLDispList(); // destructor
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void StartDef(BOOL bImmediateExec=FALSE);// enclose a disp.list def.
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void EndDef();
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void Draw();// execute disp list GL commands
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void SetIsolation(BOOL bValue) {m_bIsolated=bValue;}; // set isolation property
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};
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/** CGLTesselator
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DESC:-this is a wrapper class which let you create "tesselator objects",
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use these objects to create concave or self intersecting polygons.
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-OGL tessellation objects converts a vertices list describing a convex
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or self-intersecting polygon in one or more GL primitives.Read the
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docs to understand the callbacks mechanism.
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-The callbacks have been defined as a simple and direct mapping to
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corresponding GL primitive (no per vertex color or texture information).
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-The callbacks have to be global functions.
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-A very simple garbage collection list has been implemented to manage new
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vertices create by combine callback.
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-Elaboration and drawing occur after EndDef().
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*******/
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class CGLTesselator
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{
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public:
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CGLTesselator(); // constructor
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~CGLTesselator(); // destructor
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// properties functions
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void SetFilling(BOOL bFill=TRUE);
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BOOL GetFilling();
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void SetWindingRule(GLdouble which);
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GLdouble GetWindingRule();
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// definition functions
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void StartDef();
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void AddVertexArray(GLdouble arr[][3],int size);
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void AddVertex(GLdouble vertData[3]);
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void ContourSeparator();
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void EndDef();// here occur drawing
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private:
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GLUtesselator* m_tessObj;
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};
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/** CGLQuadric
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DESC:-This is a wrapper class which let you create "quadric objects",
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use these objects to create spheres, disks and cylinders.
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-All GL commands related to quadrics have been wrapped hiding the
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quadric object parameter.
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*******/
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class CGLQuadric
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{
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public:
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CGLQuadric(GLenum drwStyle=GLU_FILL, // constructor
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GLenum normals=GLU_FLAT,
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GLenum side=GLU_OUTSIDE,
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BOOL bGenerateTxtrCoords=FALSE);
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~CGLQuadric(); // destructor
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// properties functions
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void SetDrawStyle(GLenum style);
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void SetOrientation(GLenum type);
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void SetTextureCoordsGen(BOOL flag);
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void SetNormals(GLenum type);
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// drawing functions
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void DrawPartialDisk(GLdouble innerRadius,GLdouble outerRadius,int slices,int loops,GLdouble startAngle,GLdouble sweepAngle);
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void DrawDisk(GLdouble innerRadius,GLdouble outerRadius,int slices,int loops);
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void DrawCylinder(GLdouble baseRadius,GLdouble topRadius,GLdouble height,int slices,int stacks);
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void DrawSphere(GLdouble radius,int longitudeSubdiv,int latitudeSubdiv);
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private:
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GLUquadricObj* m_quadrObj;
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};
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// Attributes
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public:
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// Operations
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public:
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/* Stock Display lists functions
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DESC.: these display lists are internally organized in a vector (20 max),
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you have control on definition and redrawing only.
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use them for background elements which are to be drawn everytime
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all together.
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NOTE: between BeginStockDispList and EndStockDispList should be present OpenGL calls only (see documentation for which are allowed and how are them treated)
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*/
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void StartStockDListDef(); // allocates a new stock display list entry and opens a display list definition
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void EndStockListDef(); // closes a stock display list definition
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void DrawStockDispLists(); // executes all the stock display lists
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void ClearStockDispLists(); // deletes all the stock display lists
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// Information retrieval function
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GLInfoStruct GetInformation();
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// Mouse cursor function
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void SetMouseCursor(HCURSOR mcursor=NULL);
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// Attribute retrieval function
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double GetAspectRatio() {return m_dAspectRatio;};
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// Text functions
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void PrepareCharset3D(CString fontname,float extrusion,BOOL boldface=FALSE,BOOL italicface=FALSE,BOOL uselines=false,float precision=0.01f);// prepare a 3D charset to be used by successive Text3D calls
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void PrepareCharset3D(const LOGFONT* pLF,float extrusion,BOOL uselines=false,float precision=0.01f);// alternate method to prepare a 3D charset
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void PrepareCharset2D(CString fontname,int height=10,BOOL boldface=FALSE,BOOL italicface=FALSE);// prepare a 2D charset to be used by successive Text2D calls
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void PrepareCharset2D(const LOGFONT* pLF);// alternate method to prepare a 2D charset
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float Text3D(CString text);// draw a 3D text string
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void Text2D(CString text);// draw a bitmapped text string at the current raster position
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// Rendering Context switching
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void BeginGLCommands();// use to issue GL commands outside Overridables
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void EndGLCommands();// i.e: in menu event handlers, button events handler etc.
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// Overridables
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virtual void OnCreateGL(); // override to set bg color, activate z-buffer, and other global settings
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virtual void OnSizeGL(int cx, int cy); // override to adapt the viewport to the window
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virtual void OnDrawGL(); // override to issue drawing functions
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virtual void VideoMode(ColorsNumber &c,ZAccuracy &z,BOOL &dbuf); // override to specify some video mode parameters
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// Overrides
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// NOTE: these have been declared private because they shouldn't be
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// overridden, use the provided virtual functions instead.
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private:
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// ClassWizard generated virtual function overrides
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//{{AFX_VIRTUAL(CGLEnabledView)
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public:
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virtual void OnDraw(CDC* pDC); // overridden to draw this view
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virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
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protected:
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//}}AFX_VIRTUAL
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// Implementation
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protected:
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int m_glErrorCode;
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virtual ~CGLEnabledView();
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CRect m_ClientRect; // client area size
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double m_dAspectRatio; // aspect
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GLYPHMETRICSFLOAT* m_gmfvector;
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const int m_numchars;
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#ifdef _DEBUG
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virtual void AssertValid() const;
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virtual void Dump(CDumpContext& dc) const;
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#endif
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// Generated message map functions
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// NOTE: these have been declared private because they shouldn't be
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// overridden, use the provided virtual functions instead.
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private:
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//{{AFX_MSG(CGLEnabledView)
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afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
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afx_msg void OnDestroy();
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afx_msg BOOL OnEraseBkgnd(CDC* pDC);
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afx_msg void OnSize(UINT nType, int cx, int cy);
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afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message);
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//}}AFX_MSG
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DECLARE_MESSAGE_MAP()
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// member variables
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private:
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CDC* m_pCDC; // WinGDI Device Context
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HGLRC m_hRC; // OpenGL Rendering Context
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HCURSOR m_hMouseCursor; // mouse cursor handle for the view
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CPalette m_CurrentPalette; // palettes
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CPalette* m_pOldPalette;
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int m_DispListVector[20]; // Internal stock display list vector
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BOOL m_bInsideDispList; // Disp List definition semaphore
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BOOL m_bExternGLCall;
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BOOL m_bExternDispListCall;
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int m_charsetDListBase;
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// initialization helper functions
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unsigned char ComponentFromIndex(int i, UINT nbits, UINT shift);
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void CreateRGBPalette();
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BOOL bSetupPixelFormat();
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CDC* GetCDC() {return m_pCDC;};
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};
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/////////////////////////////////////////////////////////////////////////////
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//{{AFX_INSERT_LOCATION}}
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// Microsoft Developer Studio will insert additional declarations immediately before the previous line.
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#endif // !defined(AFX_GLENABLEDVIEW_H__59CED13F_E584_11D1_ACB3_E52ED8AC9002__INCLUDED_)
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