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CPI_Indicators.c
资源名称：Visual C++视频音频开发实用工程案例精选.rar　[点击查看]
上传用户：tuheem
上传日期：2007-05-01
资源大小：21889k
文件大小：4k
源码类别：

多媒体编程

开发平台：

Visual C++

CPI_Indicators.c：源码内容
  2. ////////////////////////////////////////////////////////////////////////////////
  6. #include "stdafx.h"
  7. #include "globals.h"
  8. #include "CPI_InterfacePart.h"
  10. ////////////////////////////////////////////////////////////////////////////////
  11. //
  12. typedef struct _CPs_IndicatorValue
  13. {
  14.     char* m_pcName;
  15.     char* m_pcValue;
  17.     void* m_pNext;
  19. } CPs_IndicatorValue;
  20. //
  21. //
  22. typedef struct _CPs_IndicatorBinding
  23. {
  24.     char* m_pcName;
  25.     CP_HINTERFACEPART m_hPart;
  27.     void* m_pNext;
  29. } CPs_IndicatorBinding;
  30. //
  31. ////////////////////////////////////////////////////////////////////////////////
  35. CPs_IndicatorValue* glb_pIndicatorValue = NULL;
  36. CPs_IndicatorBinding* glb_pIndicatorBinding = NULL;
  37. ////////////////////////////////////////////////////////////////////////////////
  38. //
  39. //
  40. //
  41. void CPIC_FreeIndicators()
  42. {
  43.     CPs_IndicatorValue* pValueCursor;
  44.     CPs_IndicatorValue* pValueCursor_next;
  46.     for(pValueCursor = glb_pIndicatorValue; pValueCursor; pValueCursor = pValueCursor_next)
  47.     {
  48.         pValueCursor_next = (CPs_IndicatorValue*)pValueCursor->m_pNext;
  49.         free(pValueCursor->m_pcName);
  50.         free(pValueCursor->m_pcValue);
  51.         free(pValueCursor);
  52.     }
  53. }
  54. //
  55. //
  56. //
  57. CPs_IndicatorValue* CPIC_LookupIndicator_Value(const char* pcName)
  58. {
  59.     CPs_IndicatorValue* pValueCursor;
  60.     for(pValueCursor = glb_pIndicatorValue; pValueCursor; pValueCursor = (CPs_IndicatorValue*)pValueCursor->m_pNext)
  61.     {
  62.         if(stricmp(pValueCursor->m_pcName, pcName) == 0)
  63.             return pValueCursor;
  64.     }
  66.     return NULL;
  67. }
  68. //
  69. //
  70. //
  71. void CPIC_SetIndicatorValue(const char* pcName, const char* pcValue)
  72. {
  73.     CPs_IndicatorValue* pIndicatorValue;
  75.     pIndicatorValue = CPIC_LookupIndicator_Value(pcName);
  77.     // No value found - create one
  78.     if(!pIndicatorValue)
  79.     {
  80.         pIndicatorValue = (CPs_IndicatorValue*)malloc(sizeof(CPs_IndicatorValue));
  81.         STR_AllocSetString(&pIndicatorValue->m_pcName, pcName, FALSE);
  83.         pIndicatorValue->m_pcValue = NULL;
  85.         // Link in
  86.         pIndicatorValue->m_pNext = glb_pIndicatorValue;
  87.         glb_pIndicatorValue = pIndicatorValue;
  88.     }
  90.     // Set value
  91.     STR_AllocSetString(&pIndicatorValue->m_pcValue, pcValue, TRUE);
  93.     // Invalidate any bound controls
  94.     {
  95.         CPs_IndicatorBinding* pBindingCursor;
  96.         for(pBindingCursor = glb_pIndicatorBinding; pBindingCursor; pBindingCursor = (CPs_IndicatorBinding*)pBindingCursor->m_pNext)
  97.         {
  98.             if(stricmp(pBindingCursor->m_pcName, pcName) == 0)
  99.                 IP_Invalidate(pBindingCursor->m_hPart);
  100.         }
  101.     }
  102. }
  103. //
  104. //
  105. //
  106. const char* CPIC_GetIndicatorValue(const char* pcName)
  107. {
  108.     CPs_IndicatorValue* pIndicatorValue;
  109.     pIndicatorValue = CPIC_LookupIndicator_Value(pcName);
  110.     if(pIndicatorValue)
  111.         return pIndicatorValue->m_pcValue;
  113.     return NULL;
  114. }
  115. //
  116. //
  117. //
  118. void CPIC_BindIndicatorToControl(const char* pcName, CP_HINTERFACEPART hPart)
  119. {
  120.     CPs_IndicatorBinding* pIndicatorBinding;
  122.     pIndicatorBinding = (CPs_IndicatorBinding*)malloc(sizeof(CPs_IndicatorBinding));
  124.     STR_AllocSetString(&pIndicatorBinding->m_pcName, pcName, FALSE);
  125.     pIndicatorBinding->m_hPart = hPart;
  127.     // Link in
  128.     pIndicatorBinding->m_pNext = glb_pIndicatorBinding;
  129.     glb_pIndicatorBinding = pIndicatorBinding;
  130. }
  131. //
  132. //
  133. //
  134. void CPIC_UnBindControl(CP_HINTERFACEPART hPart)
  135. {
  136.     CPs_IndicatorBinding* pBindingCursor;
  137.     CPs_IndicatorBinding** ppBindingCursor_Referrer;
  138.     for(pBindingCursor = glb_pIndicatorBinding, ppBindingCursor_Referrer = &glb_pIndicatorBinding;
  139.             pBindingCursor;
  140.             pBindingCursor = (CPs_IndicatorBinding*)pBindingCursor->m_pNext,
  141.             ppBindingCursor_Referrer = (CPs_IndicatorBinding**)&pBindingCursor->m_pNext)
  142.     {
  143.         if(pBindingCursor->m_hPart == hPart)
  144.         {
  145.             *ppBindingCursor_Referrer = (CPs_IndicatorBinding*)pBindingCursor->m_pNext;
  146.             free(pBindingCursor->m_pcName);
  147.             free(pBindingCursor);
  148.             return;
  149.         }
  150.     }
  151. }
  152. //
  153. //
  154. //