Merge pull request #54 from mohsenomidi/master

Example of refreshing table contents

samples/CMakeLists.txt

@@ -47,4 +47,7 @@ add_executable(word_wrapping word_wrapping.cpp)
 target_link_libraries(word_wrapping PRIVATE tabulate::tabulate)
 
 add_executable(asciidoc_export asciidoc_export.cpp)
-target_link_libraries(asciidoc_export PRIVATE tabulate::tabulate)
+target_link_libraries(asciidoc_export PRIVATE tabulate::tabulate)
+
+add_executable(refresh_table refresh_table.cpp) 
+target_link_libraries(refresh_table PRIVATE tabulate::tabulate pthread)

samples/refresh_table.cpp

@@ -0,0 +1,60 @@
+#include <atomic>
+#include <chrono>
+#include <random>
+#include <tabulate/table.hpp>
+#include <thread>
+
+
+using namespace tabulate;
+using Row_t = std::vector<variant<std::string, const char *, Table>>;
+std::atomic_bool keep_running(true);
+
+void waitingForWorkEnterKey() {
+  while (keep_running) {
+    if (std::cin.get() == 10) {
+      keep_running = false;
+    }
+  }
+  return;
+}
+
+int main() {
+  std::thread tUserInput(waitingForWorkEnterKey);
+  while (keep_running) {
+    Table process_table;
+    std::random_device rd;
+    std::mt19937 gen(rd());
+    std::uniform_real_distribution<> dis(0, 1);
+    process_table.add_row(Row_t{"PID", "%CPU", "%MEM", "User", "NI"});
+    process_table.add_row(
+        Row_t{"4297", std::to_string((int)round(dis(gen) * 100)),
+              std::to_string((int)round(dis(gen) * 100)), "ubuntu", "20"});
+    process_table.add_row(
+        Row_t{"12671", std::to_string((int)round(dis(gen) * 100)),
+              std::to_string((int)round(dis(gen) * 100)), "root", "0"});
+    process_table.add_row({"810", std::to_string((int)round(dis(gen) * 100)),
+                           std::to_string((int)round(dis(gen) * 100)), "root",
+                           "-20"});
+
+    process_table.column(2).format().font_align(FontAlign::center);
+    process_table.column(3).format().font_align(FontAlign::right);
+    process_table.column(4).format().font_align(FontAlign::right);
+
+    for (size_t i = 0; i < 5; ++i) {
+      process_table[0][i]
+          .format()
+          .font_color(Color::yellow)
+          .font_align(FontAlign::center)
+          .font_style({FontStyle::bold});
+    }
+
+    std::cout << process_table << std::endl;
+    std::cout << "Press ENTER to exit..." << std::endl;
+    std::this_thread::sleep_for(std::chrono::milliseconds(1000));
+    std::cout << "\033[F\033[F\033[F\033[F\033[F\033[F\033[F\033[F\033[F\033[F";
+  }
+  std::cout << "\033[B\033[B\033[B\033[B\033[B\033[B\033[B\033[B\033[B\033[B";
+  tUserInput.join();
+
+  return 0;
+}