Merge pull request #136 from Kicer86/progressbars_ownership

Make DynamicProgress take ownership over progress bars

README.md

@@ -442,35 +442,59 @@ using namespace indicators;
 
 int main() {
 
-  ProgressBar bar1{option::BarWidth{50}, option::ForegroundColor{Color::red},
-                   option::ShowElapsedTime{true}, option::ShowRemainingTime{true},
-                   option::PrefixText{"5c90d4a2d1a8: Downloading "}};
+  auto bar1 = std::make_unique<ProgressBar>(option::BarWidth{50},
+                   option::ForegroundColor{Color::red},
+                   option::ShowElapsedTime{true},
+                   option::ShowRemainingTime{true},
+                   option::PrefixText{"5c90d4a2d1a8: Downloading "},
+                   indicators::option::FontStyles{
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
-  ProgressBar bar2{option::BarWidth{50}, option::ForegroundColor{Color::yellow},
-                   option::ShowElapsedTime{true}, option::ShowRemainingTime{true},
-                   option::PrefixText{"22337bfd13a9: Downloading "}};
+  auto bar2 = std::make_unique<ProgressBar>(option::BarWidth{50},
+                   option::ForegroundColor{Color::yellow},
+                   option::ShowElapsedTime{true},
+                   option::ShowRemainingTime{true},
+                   option::PrefixText{"22337bfd13a9: Downloading "},
+                   indicators::option::FontStyles{
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
-  ProgressBar bar3{option::BarWidth{50}, option::ForegroundColor{Color::green},
-                   option::ShowElapsedTime{true}, option::ShowRemainingTime{true},
-                   option::PrefixText{"10f26c680a34: Downloading "}};
+  auto bar3 = std::make_unique<ProgressBar>(option::BarWidth{50},
+                   option::ForegroundColor{Color::green},
+                   option::ShowElapsedTime{true},
+                   option::ShowRemainingTime{true},
+                   option::PrefixText{"10f26c680a34: Downloading "},
+                   indicators::option::FontStyles{
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
-  ProgressBar bar4{option::BarWidth{50}, option::ForegroundColor{Color::white},
-                   option::ShowElapsedTime{true}, option::ShowRemainingTime{true},
-                   option::PrefixText{"6364e0d7a283: Downloading "}};
+  auto bar4 = std::make_unique<ProgressBar>(option::BarWidth{50},
+                   option::ForegroundColor{Color::white},
+                   option::ShowElapsedTime{true},
+                   option::ShowRemainingTime{true},
+                   option::PrefixText{"6364e0d7a283: Downloading "},
+                   indicators::option::FontStyles{
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
-  ProgressBar bar5{option::BarWidth{50}, option::ForegroundColor{Color::blue},
-                   option::ShowElapsedTime{true}, option::ShowRemainingTime{true},
-                   option::PrefixText{"ff1356ba118b: Downloading "}};
+  auto bar5 = std::make_unique<ProgressBar>(option::BarWidth{50},
+                   option::ForegroundColor{Color::blue},
+                   option::ShowElapsedTime{true},
+                   option::ShowRemainingTime{true},
+                   option::PrefixText{"ff1356ba118b: Downloading "},
+                   indicators::option::FontStyles{
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
-  ProgressBar bar6{option::BarWidth{50}, option::ForegroundColor{Color::cyan},
-                   option::ShowElapsedTime{true}, option::ShowRemainingTime{true},
-                   option::PrefixText{"5a17453338b4: Downloading "}};
+  auto bar6 = std::make_unique<ProgressBar>(option::BarWidth{50},
+                   option::ForegroundColor{Color::cyan},
+                   option::ShowElapsedTime{true},
+                   option::ShowRemainingTime{true},
+                   option::PrefixText{"5a17453338b4: Downloading "},
+                   indicators::option::FontStyles{
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
   std::cout << termcolor::bold << termcolor::white << "Pulling image foo:bar/baz\n";
 
   // Construct with 3 progress bars. We'll add 3 more at a later point
   DynamicProgress<ProgressBar> bars(bar1, bar2, bar3);
-  
+
   // Do not hide bars when completed
   bars.set_option(option::HideBarWhenComplete{false});
 
@@ -518,7 +542,7 @@ int main() {
       if (bars[0].is_completed()) {
         bars[0].set_option(option::PrefixText{"5c90d4a2d1a8: Pull complete "});
         // bar1 is completed, adding bar6
-        auto i = bars.push_back(bar6);
+        auto i = bars.push_back(std::move(bar6));
         sixth_job = std::thread(job6, i);
         sixth_job.join();
         break;
@@ -533,7 +557,7 @@ int main() {
       if (bars[1].is_completed()) {
         bars[1].set_option(option::PrefixText{"22337bfd13a9: Pull complete "});
         // bar2 is completed, adding bar5
-        auto i = bars.push_back(bar5);
+        auto i = bars.push_back(std::move(bar5));
         fifth_job = std::thread(job5, i);
         fifth_job.join();
         break;
@@ -548,7 +572,7 @@ int main() {
       if (bars[2].is_completed()) {
         bars[2].set_option(option::PrefixText{"10f26c680a34: Pull complete "});
         // bar3 is completed, adding bar4
-        auto i = bars.push_back(bar4);
+        auto i = bars.push_back(std::move(bar4));
         fourth_job = std::thread(job4, i);
         fourth_job.join();
         break;

include/indicators/dynamic_progress.hpp

@@ -10,6 +10,7 @@
 #include <indicators/cursor_movement.hpp>
 #include <indicators/details/stream_helper.hpp>
 #include <iostream>
+#include <memory>
 #include <mutex>
 #include <vector>
 
@@ -19,10 +20,10 @@ template <typename Indicator> class DynamicProgress {
   using Settings = std::tuple<option::HideBarWhenComplete>;
 
 public:
-  template <typename... Indicators> explicit DynamicProgress(Indicators &... bars) {
-    bars_ = {bars...};
+  template <typename... Indicators> explicit DynamicProgress(Indicators &&... bars) {
+    (bars_.emplace_back(std::move(bars)), ...);
     for (auto &bar : bars_) {
-      bar.get().multi_progress_mode_ = true;
+      bar->multi_progress_mode_ = true;
       ++total_count_;
       ++incomplete_count_;
     }
@@ -31,13 +32,13 @@ public:
   Indicator &operator[](size_t index) {
     print_progress();
     std::lock_guard<std::mutex> lock{mutex_};
-    return bars_[index].get();
+    return *bars_[index];
   }
 
-  size_t push_back(Indicator &bar) {
+  size_t push_back(std::unique_ptr<Indicator> bar) {
     std::lock_guard<std::mutex> lock{mutex_};
-    bar.multi_progress_mode_ = true;
-    bars_.push_back(bar);
+    bar->multi_progress_mode_ = true;
+    bars_.push_back(std::move(bar));
     return bars_.size() - 1;
   }
 
@@ -63,7 +64,7 @@ private:
   Settings settings_;
   std::atomic<bool> started_{false};
   std::mutex mutex_;
-  std::vector<std::reference_wrapper<Indicator>> bars_;
+  std::vector<std::unique_ptr<Indicator>> bars_;
   std::atomic<size_t> total_count_{0};
   std::atomic<size_t> incomplete_count_{0};
 
@@ -93,8 +94,8 @@ public:
       }
       incomplete_count_ = 0;
       for (auto &bar : bars_) {
-        if (!bar.get().is_completed()) {
-          bar.get().print_progress(true);
+        if (!bar->is_completed()) {
+          bar->print_progress(true);
           std::cout << "\n";
           ++incomplete_count_;
         }
@@ -106,7 +107,7 @@ public:
       if (started_)
         move_up(static_cast<int>(total_count_));
       for (auto &bar : bars_) {
-        bar.get().print_progress(true);
+        bar->print_progress(true);
         std::cout << "\n";
       }
       if (!started_)
@@ -119,4 +120,4 @@ public:
 
 } // namespace indicators
 
-#endif
+#endif

samples/dynamic_progress.cpp

@@ -4,57 +4,60 @@ using namespace indicators;
 
 int main() {
 
-  ProgressBar bar1{option::BarWidth{50},
+  auto bar1 = std::make_unique<ProgressBar>(option::BarWidth{50},
                    option::ForegroundColor{Color::red},
                    option::ShowElapsedTime{true},
                    option::ShowRemainingTime{true},
                    option::PrefixText{"5c90d4a2d1a8: Downloading "},
                    indicators::option::FontStyles{
-                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}}};
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
-  ProgressBar bar2{option::BarWidth{50},
+  auto bar2 = std::make_unique<ProgressBar>(option::BarWidth{50},
                    option::ForegroundColor{Color::yellow},
                    option::ShowElapsedTime{true},
                    option::ShowRemainingTime{true},
                    option::PrefixText{"22337bfd13a9: Downloading "},
                    indicators::option::FontStyles{
-                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}}};
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
-  ProgressBar bar3{option::BarWidth{50},
+  auto bar3 = std::make_unique<ProgressBar>(option::BarWidth{50},
                    option::ForegroundColor{Color::green},
                    option::ShowElapsedTime{true},
                    option::ShowRemainingTime{true},
                    option::PrefixText{"10f26c680a34: Downloading "},
                    indicators::option::FontStyles{
-                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}}};
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
-  ProgressBar bar4{option::BarWidth{50},
+  auto bar4 = std::make_unique<ProgressBar>(option::BarWidth{50},
                    option::ForegroundColor{Color::white},
                    option::ShowElapsedTime{true},
                    option::ShowRemainingTime{true},
                    option::PrefixText{"6364e0d7a283: Downloading "},
                    indicators::option::FontStyles{
-                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}}};
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
-  ProgressBar bar5{option::BarWidth{50},
+  auto bar5 = std::make_unique<ProgressBar>(option::BarWidth{50},
                    option::ForegroundColor{Color::blue},
                    option::ShowElapsedTime{true},
                    option::ShowRemainingTime{true},
                    option::PrefixText{"ff1356ba118b: Downloading "},
                    indicators::option::FontStyles{
-                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}}};
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
-  ProgressBar bar6{option::BarWidth{50},
+  auto bar6 = std::make_unique<ProgressBar>(option::BarWidth{50},
                    option::ForegroundColor{Color::cyan},
                    option::ShowElapsedTime{true},
                    option::ShowRemainingTime{true},
                    option::PrefixText{"5a17453338b4: Downloading "},
                    indicators::option::FontStyles{
-                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}}};
+                       std::vector<indicators::FontStyle>{indicators::FontStyle::bold}});
 
   std::cout << termcolor::bold << termcolor::white << "Pulling image foo:bar/baz\n";
 
+  // Construct with 3 progress bars. We'll add 3 more at a later point
   DynamicProgress<ProgressBar> bars(bar1, bar2, bar3);
+
+  // Do not hide bars when completed
   bars.set_option(option::HideBarWhenComplete{false});
 
   std::thread fourth_job, fifth_job, sixth_job;
@@ -101,7 +104,7 @@ int main() {
       if (bars[0].is_completed()) {
         bars[0].set_option(option::PrefixText{"5c90d4a2d1a8: Pull complete "});
         // bar1 is completed, adding bar6
-        auto i = bars.push_back(bar6);
+        auto i = bars.push_back(std::move(bar6));
         sixth_job = std::thread(job6, i);
         sixth_job.join();
         break;
@@ -116,7 +119,7 @@ int main() {
       if (bars[1].is_completed()) {
         bars[1].set_option(option::PrefixText{"22337bfd13a9: Pull complete "});
         // bar2 is completed, adding bar5
-        auto i = bars.push_back(bar5);
+        auto i = bars.push_back(std::move(bar5));
         fifth_job = std::thread(job5, i);
         fifth_job.join();
         break;
@@ -131,7 +134,7 @@ int main() {
       if (bars[2].is_completed()) {
         bars[2].set_option(option::PrefixText{"10f26c680a34: Pull complete "});
         // bar3 is completed, adding bar4
-        auto i = bars.push_back(bar4);
+        auto i = bars.push_back(std::move(bar4));
         fourth_job = std::thread(job4, i);
         fourth_job.join();
         break;