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QUAD.H
资源名称：MSDN_VC98.zip　[点击查看]
上传用户：bangxh
上传日期：2007-01-31
资源大小：42235k
文件大小：4k
源码类别：

Windows编程

开发平台：

Visual C++

QUAD.H：源码内容
  1. //+---------------------------------------------------------------------------
  2. //
  3. //  Microsoft Windows
  4. //  Copyright 1992 - 1997 Microsoft Corporation.
  5. //
  6. //  File:       quad.h
  7. //
  8. //  Contents:   class definitions for the Quadrant Engine
  9. //
  10. //  Classes:    CQuadrantEngineCF
  11. //              CQuadrantEngine
  12. //
  13. //  Functions:
  14. //
  15. //  History:    4-14-94   stevebl   Created
  16. //
  17. //----------------------------------------------------------------------------
  19. #ifndef __QUAD_H__
  20. #define __QUAD_H__
  21. #ifdef __cplusplus
  23. #include <frcngn.h>
  24. #include <frhost.h>
  25. #include <qudcln.h>
  26. #include <qudngn.h>
  28. //+---------------------------------------------------------------------------
  29. //
  30. //  Class:      CQuadrantEngineCF
  31. //
  32. //  Purpose:    the class factory for the Quadrant Engine
  33. //
  34. //  Interface:  CQuadrantEngineCF  -- constructor
  35. //              ~CQuadrantEngineCF -- destructor
  36. //              QueryInterface     -- retrieves an interface on the cf
  37. //              AddRef             -- incrementes referencec count
  38. //              Release            -- decrements reference count
  39. //              CreateInstance     -- creates a Quadrant Engine object
  40. //              LockServer         -- keeps cf from being deleted on release
  41. //
  42. //  History:    4-14-94   stevebl   Created
  43. //
  44. //----------------------------------------------------------------------------
  46. class CQuadrantEngineCF : public IClassFactory
  47. {
  48. public:
  49.     CQuadrantEngineCF();
  50.     ~CQuadrantEngineCF();
  52.     HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID *);
  53.     ULONG STDMETHODCALLTYPE AddRef(void);
  54.     ULONG STDMETHODCALLTYPE Release(void);
  56.     HRESULT STDMETHODCALLTYPE CreateInstance(LPUNKNOWN, REFIID, LPVOID*);
  57.     HRESULT STDMETHODCALLTYPE LockServer(BOOL);
  59. protected:
  60.     ULONG _cRef;
  61. };
  63. //+---------------------------------------------------------------------------
  64. //
  65. //  Class:      CQuadrantEngine
  66. //
  67. //  Purpose:    implementation for the quadrant engine object
  68. //
  69. //  Interface:  QueryInterface     -- retrieves an interface from the engine
  70. //              AddRef             -- increments refcount
  71. //              Release            -- decrements refcount
  72. //              Init               -- initializes quadrant engine
  73. //              UseBoundingBoxes   -- tells engine to use bounding boxes
  74. //              SetGraphSize       -- tells engine the size of its graph
  75. //              Start              -- starts engine
  76. //              Stop               -- stops engine
  77. //              Reset              -- resets engine
  78. //              GraphicsThread     -- entry point for the graphics thread
  79. //              PlotAreaSlowly     -- plots a rectangle
  80. //              Subdivide          -- recursively plots a quadrant
  81. //              Initialize         -- private method to initialize c++ object
  82. //              CQuadrantEngine    -- constructor
  83. //              ~CQuadrantEngine   -- destructor
  84. //
  85. //  History:    4-14-94   stevebl   Created
  86. //
  87. //----------------------------------------------------------------------------
  89. class CQuadrantEngine : public IQuadrantEngine
  90. {
  91. public:
  92.     // IUnknown methods
  93.     HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID *);
  94.     ULONG STDMETHODCALLTYPE AddRef(void);
  95.     ULONG STDMETHODCALLTYPE Release(void);
  97.     // IQuadrantEngine methods
  98.     HRESULT STDMETHODCALLTYPE Init(
  99.         IQuadrantClient *pqc,
  100.         IFractalHost *pfh);
  102.     HRESULT STDMETHODCALLTYPE UseBoundingBoxes(BOOL fFlag);
  104.     HRESULT STDMETHODCALLTYPE SetGraphSize(
  105.         unsigned int uWidth,
  106.         unsigned int uHeight);
  108.     HRESULT STDMETHODCALLTYPE Start(void);
  110.     HRESULT STDMETHODCALLTYPE Stop(void);
  112.     HRESULT STDMETHODCALLTYPE Reset(void);
  114.     // Methods that aren't part of any interface
  115.     DWORD GraphicsThread(void);
  116.     void PlotAreaSlowly(
  117.         int iXLow,
  118.         int iYLow,
  119.         int iXHigh,
  120.         int iYHigh);
  121.     void Subdivide(
  122.         int iXLow,
  123.         int iYLow,
  124.         int iXHigh,
  125.         int iYHigh);
  126.     BOOL Initialize(void);
  127.     CQuadrantEngine();
  128.     ~CQuadrantEngine();
  129. private:
  130.     BOOL _fUseBoundingBoxes;
  131.     ULONG _cRef;
  132.     unsigned _uWidth, _uHeight;
  133.     HANDLE _hRestart, _hRunning;
  134.     HANDLE _hEngine;
  135.     DWORD _dwThreadId;
  136.     IFractalHost * _pfh;
  137.     IQuadrantClient * _pqc;
  138. };
  140. extern HINSTANCE ghinst;
  141. extern ULONG gcRef, gcLock;
  143. #endif //__cplusplus
  144. #endif //__QUAD_H__