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root/OpenMD/trunk/src/utils/ProgressBar.cpp
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Comparing trunk/src/utils/ProgressBar.cpp (file contents):
Revision 1421 by gezelter, Tue Mar 30 15:04:19 2010 UTC vs.
Revision 1431 by gezelter, Thu Apr 8 14:27:53 2010 UTC

# Line 39 | Line 39
39   * [4]  Vardeman, Stocker & Gezelter, in progress (2010).                        
40   */
41  
42 < #include <string>
43 < #include <sstream>
42 > #include <iostream>
43   #include <sys/ioctl.h>
45 #define _POSIX_SOURCE
46 #include <unistd.h>
44   #ifdef IS_MPI
45   #include <mpi.h>
46 < #endif //is_mpi
46 > #endif
47   #include "utils/ProgressBar.hpp"
48  
49 + using namespace std;
50 +
51   namespace OpenMD {
52  
53    const char * progressSpinner_ = "|/-\\";
# Line 60 | Line 59 | namespace OpenMD {
59   #ifdef IS_MPI
60      if (MPI::COMM_WORLD.Get_rank() == 0) {
61   #endif
62 <      printf("\n");
63 <      fflush(stdout);
62 >      cout << endl;
63 >      cout.flush();
64   #ifdef IS_MPI
65      }
66   #endif
# Line 72 | Line 71 | namespace OpenMD {
71    }
72    
73    void ProgressBar::update() {
74 <    int width = 80;
74 >
75 >    int width;
76 >
77   #ifdef IS_MPI
78      if (MPI::COMM_WORLD.Get_rank() == 0) {
79   #endif
80 <
80 >      
81        // only do the progress bar if we are actually running in a tty:
82 <      if (isatty(fileno(stdout))) {        
82 >      if (isatty(fileno(stdout))) {  
83 >      
84          // get the window width:
85          struct winsize w;
86          ioctl(fileno(stdout), TIOCGWINSZ, &w);
87          width = w.ws_col;
88  
89 +        // handle the case when the width is returned as a nonsensical value.
90 +        if (width <= 0) width = 80;
91 +
92          // We'll use:
93          // 31 characters for the completion estimate,
94          //  6 for the % complete,
95          //  2 characters for the open and closing brackets.
96          
97 <        int avail = width - 31 - 6 - 2;
98 <        
97 >        int avail = width - 31 - 6 - 2;      
98 >
99          ++iteration_;
100 <        
100 >
101          if (maximum_ > 0.0) {
102  
103            // we know the maximum, so draw a progress bar
104            
105            RealType percent = value_ * 100.0 / maximum_;
106            int hashes = int(percent * avail / 100.0);
102          std::string progressbar;
103          progressbar.assign(hashes, '#');
107            
105          // add the spinner to the end of the progress bar:
106          progressbar += progressSpinner_[iteration_ & 3];
107          
108            // compute the best estimate of the ending time:
109            time_t current_ = time(NULL);
110            time_t end_ = start_ + (current_ - start_) * (100.0/percent);
111            struct tm * ender = localtime(&end_);
112 <          char buffer[24];
113 <          strftime(buffer, 24, "%a %b %d @ %I:%M %p", ender);
112 >          char buffer[22];
113 >          strftime(buffer, 22, "%a %b %d @ %I:%M %p", ender);
114            
115 <          std::stringstream fmt;
116 <          fmt << "\r%3d%% [%-" << avail << "s] Estimate: %s";
117 <          std::string st = fmt.str();
118 <          
119 <          printf(st.c_str(), int(percent),
120 <                 progressbar.c_str(),
121 <                 buffer);
122 <          
123 <        } else {
124 <          // we don't know the maximum, so we can't draw a progress bar
125 <          int center = (iteration_ % 48) + 1; // 50 spaces, minus 2
126 <          std::string before;
127 <          std::string after;
128 <          before.assign(std::max(center - 2, 0), ' ');
129 <          after.assign(std::min(center + 2, 50), ' ');
130 <          
131 <          printf("\r[%s###%s]            ",
132 <                 before.c_str(), after.c_str());
115 >          cout << '\r';
116 >          cout.width(3);
117 >          cout << right << int(percent);
118 >          cout.width(3);
119 >          cout << "% [";
120 >          cout.fill('#');
121 >          if (hashes+1 < avail) {
122 >            cout.width(hashes+1);
123 >            cout << progressSpinner_[iteration_ & 3];
124 >          } else {
125 >            cout.width(avail);
126 >            cout << '#';            
127 >          }
128 >          cout.fill(' ');
129 >          if (avail - hashes - 1  > 0) {
130 >            cout.width(avail - hashes - 1);
131 >            cout << ' ';
132 >          }
133 >          cout.width(11);
134 >          cout << "] Estimate:";
135 >          cout.width(22);
136 >          cout << buffer;
137 >                  
138          }
139 <        fflush(stdout);
139 >        cout.flush();
140        }
141   #ifdef IS_MPI
142      }

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