84 lines
1.7 KiB
C++
84 lines
1.7 KiB
C++
#include "base/progress_monitor.h"
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#include <iostream>
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//----------------------------------------------------------------
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namespace {
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using namespace std;
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class progress_bar : public base::progress_monitor {
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public:
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progress_bar(string const &title)
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: title_(title),
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progress_width_(50),
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spinner_(0) {
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update_percent(0);
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}
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~progress_bar() {
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cout << "\n";
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}
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void update_percent(unsigned p) {
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unsigned nr_equals = max<unsigned>(progress_width_ * p / 100, 1);
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unsigned nr_spaces = progress_width_ - nr_equals;
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cout << title_ << ": [";
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for (unsigned i = 0; i < nr_equals - 1; i++)
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cout << '=';
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if (nr_equals < progress_width_)
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cout << '>';
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else
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cout << "=";
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for (unsigned i = 0; i < nr_spaces; i++)
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cout << ' ';
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cout << "] " << spinner_char(p) << " " << p << "%\r" << flush;
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spinner_++;
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}
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private:
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char spinner_char(unsigned p) const {
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if (p == 100)
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return ' ';
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char cs[] = {'|', '/', '-', '\\'};
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unsigned index = spinner_ % sizeof(cs);
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return cs[index];
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}
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std::string title_;
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unsigned progress_width_;
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unsigned spinner_;
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};
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class quiet_progress : public base::progress_monitor {
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public:
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void update_percent(unsigned p) {
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}
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};
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}
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//----------------------------------------------------------------
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std::unique_ptr<base::progress_monitor>
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base::create_progress_bar(std::string const &title)
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{
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return unique_ptr<progress_monitor>(new progress_bar(title));
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}
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std::unique_ptr<base::progress_monitor>
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base::create_quiet_progress_monitor()
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{
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return unique_ptr<progress_monitor>(new quiet_progress());
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}
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//----------------------------------------------------------------
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