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1.1 root 1: /***
2: *cpoly.h
3: *
4: * Copyright (C) 1992, Microsoft Corporation. All Rights Reserved.
5: * Information Contained Herein Is Proprietary and Confidential.
6: *
7: *Purpose:
8: * Definition of the CPoly class.
9: *
10: * The CPoly class defines a number of methods and exposes them for
11: * external programmability via IDispatch,
12: *
13: * methods:
14: * DRAW - draw the polygon
15: * RESET - delete all points from the polygon
16: *
17: * ADDPOINT(X, Y) - add a point with coordinates (x,y) to the polygon
18: *
19: * ENUMPOINTS - return a collection of the polygon's points
20: *
21: * GETXORIGIN - get and set the X origin of the polygon
22: * SETXORIGIN
23: *
24: * GETYORIGIN - get and set the Y origin of the polygon
25: * SETYORIGIN
26: *
27: * GETWIDTH - get and set the line width of the polygon
28: * SETWIDTH
29: *
30: * UNDONE: update description
31: *
32: *Implementation Notes:
33: *
34: *****************************************************************************/
35:
36:
37: #ifndef CLASS
38: # ifdef __TURBOC__
39: # define CLASS class huge
40: # else
41: # define CLASS class FAR
42: # endif
43: #endif
44:
45: class CPoint;
46:
47: CLASS CPoly : public IDispatch
48: {
49: public:
50: static CPoly FAR* Create();
51:
52: /* IUnknown methods */
53: STDMETHOD(QueryInterface)(REFIID riid, void FAR* FAR* ppvObj);
54: STDMETHOD_(unsigned long, AddRef)(void);
55: STDMETHOD_(unsigned long, Release)(void);
56:
57: /* IDispatch methods */
58: STDMETHOD(GetTypeInfoCount)(unsigned int FAR* pcTypeInfo);
59:
60: STDMETHOD(GetTypeInfo)(
61: unsigned int iTypeInfo,
62: LCID lcid,
63: ITypeInfo FAR* FAR* ppTypeInfo);
64:
65: STDMETHOD(GetIDsOfNames)(
66: REFIID riid,
67: char FAR* FAR* rgszNames,
68: unsigned int cNames,
69: LCID lcid,
70: DISPID FAR* rgdispid);
71:
72: STDMETHOD(Invoke)(
73: DISPID dispidMember,
74: REFIID riid,
75: LCID lcid,
76: unsigned short wFlags,
77: DISPPARAMS FAR* pdispparams,
78: VARIANT FAR* pvarResult,
79: EXCEPINFO FAR* pexcepinfo,
80: unsigned int FAR* puArgErr);
81:
82: /* Introduced methods */
83:
84: virtual void PASCAL Draw(void);
85: virtual void PASCAL Reset(void);
86:
87: // add a point with the given 'x' and 'y' coordinates
88: virtual HRESULT PASCAL AddPoint(short x, short y);
89:
90: // return a collection of the polygon's points
91: virtual HRESULT PASCAL EnumPoints(IEnumVARIANT FAR* FAR* ppenum);
92:
93: // get/set the polygon's X origin property
94: virtual short PASCAL GetXOrigin(void);
95: virtual void PASCAL SetXOrigin(short x);
96:
97: // get/set the polygon's Y origin property
98: virtual short PASCAL GetYOrigin(void);
99: virtual void PASCAL SetYOrigin(short y);
100:
101: virtual short PASCAL GetWidth(void);
102: virtual void PASCAL SetWidth(short width);
103:
104: virtual short PASCAL get_red(void);
105: virtual void PASCAL set_red(short red);
106:
107: virtual short PASCAL get_green(void);
108: virtual void PASCAL set_green(short green);
109:
110: virtual short PASCAL get_blue(void);
111: virtual void PASCAL set_blue(short blue);
112:
113: // Debug method
114: virtual void PASCAL Dump(void);
115:
116: public:
117:
118: // Draw all polygons.
119: static void PolyDraw(void);
120:
121: // Release all polygons.
122: static void PolyTerm(void);
123:
124: // Dump all polygons to dbwin.
125: static void PolyDump(void);
126:
127:
128: private:
129: CPoly();
130:
131: short m_xorg;
132: short m_yorg;
133: short m_width;
134:
135: short m_red;
136: short m_green;
137: short m_blue;
138:
139: unsigned long m_refs;
140: unsigned int m_cPoints;
141:
142: POINTLINK FAR* m_ppointlink;
143: POINTLINK FAR* m_ppointlinkLast;
144: };
145:
146: // DISPIDs for the members and properties available via IDispatch.
147: //
148: enum IDMEMBER_CPOLY {
149: IDMEMBER_CPOLY_DRAW = 1,
150: IDMEMBER_CPOLY_RESET,
151: IDMEMBER_CPOLY_ADDPOINT,
152: IDMEMBER_CPOLY_ENUMPOINTS,
153: IDMEMBER_CPOLY_GETXORIGIN,
154: IDMEMBER_CPOLY_SETXORIGIN,
155: IDMEMBER_CPOLY_GETYORIGIN,
156: IDMEMBER_CPOLY_SETYORIGIN,
157: IDMEMBER_CPOLY_GETWIDTH,
158: IDMEMBER_CPOLY_SETWIDTH,
159: IDMEMBER_CPOLY_GETRED,
160: IDMEMBER_CPOLY_SETRED,
161: IDMEMBER_CPOLY_GETGREEN,
162: IDMEMBER_CPOLY_SETGREEN,
163: IDMEMBER_CPOLY_GETBLUE,
164: IDMEMBER_CPOLY_SETBLUE,
165: IDMEMBER_CPOLY_DUMP,
166: IDMEMBER_CPOLY_MAX
167: };
168:
169: // structure used to link together polygons
170: //
171: struct POLYLINK {
172: POLYLINK FAR* next;
173: CPoly FAR* ppoly;
174: };
175:
176:
177: // The CPoly class factory
178: //
179: CLASS CPolyCF : public IClassFactory
180: {
181: public:
182: static IClassFactory FAR* Create();
183:
184: /* IUnknown methods */
185: STDMETHOD(QueryInterface)(REFIID riid, void FAR* FAR* ppv);
186: STDMETHOD_(unsigned long, AddRef)(void);
187: STDMETHOD_(unsigned long, Release)(void);
188:
189: /* IClassFactory methods */
190: STDMETHOD(CreateInstance)(
191: IUnknown FAR* pUnkOuter, REFIID riid, void FAR* FAR* ppv);
192: #ifdef _MAC
193: STDMETHOD(LockServer)(unsigned long fLock);
194: #else
195: STDMETHOD(LockServer)(BOOL fLock);
196: #endif
197:
198: private:
199: CPolyCF();
200:
201: unsigned long m_refs;
202: };
203:
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