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1 // PercentPrinter.cpp | |
2 | |
3 #include "StdAfx.h" | |
4 | |
5 #include "Common/IntToString.h" | |
6 #include "Common/MyString.h" | |
7 | |
8 #include "PercentPrinter.h" | |
9 | |
10 const int kPaddingSize = 2; | |
11 const int kPercentsSize = 4; | |
12 const int kMaxExtraSize = kPaddingSize + 32 + kPercentsSize; | |
13 | |
14 static void ClearPrev(char *p, int num) | |
15 { | |
16 int i; | |
17 for (i = 0; i < num; i++) *p++ = '\b'; | |
18 for (i = 0; i < num; i++) *p++ = ' '; | |
19 for (i = 0; i < num; i++) *p++ = '\b'; | |
20 *p = '\0'; | |
21 } | |
22 | |
23 void CPercentPrinter::ClosePrint() | |
24 { | |
25 if (m_NumExtraChars == 0) | |
26 return; | |
27 char s[kMaxExtraSize * 3 + 1]; | |
28 ClearPrev(s, m_NumExtraChars); | |
29 (*OutStream) << s; | |
30 m_NumExtraChars = 0; | |
31 } | |
32 | |
33 void CPercentPrinter::PrintString(const char *s) | |
34 { | |
35 ClosePrint(); | |
36 (*OutStream) << s; | |
37 } | |
38 | |
39 void CPercentPrinter::PrintString(const wchar_t *s) | |
40 { | |
41 ClosePrint(); | |
42 (*OutStream) << s; | |
43 } | |
44 | |
45 void CPercentPrinter::PrintNewLine() | |
46 { | |
47 ClosePrint(); | |
48 (*OutStream) << "\n"; | |
49 } | |
50 | |
51 void CPercentPrinter::RePrintRatio() | |
52 { | |
53 char s[32]; | |
54 ConvertUInt64ToString(((m_Total == 0) ? 0 : (m_CurValue * 100 / m_Total)), s); | |
55 int size = (int)strlen(s); | |
56 s[size++] = '%'; | |
57 s[size] = '\0'; | |
58 | |
59 int extraSize = kPaddingSize + MyMax(size, kPercentsSize); | |
60 if (extraSize < m_NumExtraChars) | |
61 extraSize = m_NumExtraChars; | |
62 | |
63 char fullString[kMaxExtraSize * 3]; | |
64 char *p = fullString; | |
65 int i; | |
66 if (m_NumExtraChars == 0) | |
67 { | |
68 for (i = 0; i < extraSize; i++) | |
69 *p++ = ' '; | |
70 m_NumExtraChars = extraSize; | |
71 } | |
72 | |
73 for (i = 0; i < m_NumExtraChars; i++) | |
74 *p++ = '\b'; | |
75 m_NumExtraChars = extraSize; | |
76 for (; size < m_NumExtraChars; size++) | |
77 *p++ = ' '; | |
78 MyStringCopy(p, s); | |
79 (*OutStream) << fullString; | |
80 OutStream->Flush(); | |
81 m_PrevValue = m_CurValue; | |
82 } | |
83 | |
84 void CPercentPrinter::PrintRatio() | |
85 { | |
86 if (m_CurValue < m_PrevValue + m_MinStepSize && | |
87 m_CurValue + m_MinStepSize > m_PrevValue && m_NumExtraChars != 0) | |
88 return; | |
89 RePrintRatio(); | |
90 } | |
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