mirror of
https://github.com/p-ranav/indicators.git
synced 2025-12-09 22:58:52 +08:00
293 lines
7.7 KiB
Markdown
293 lines
7.7 KiB
Markdown
<p align="center">
|
|
<img height="100" src="img/logo.png"/>
|
|
</p>
|
|
|
|
<p align="center">
|
|
<a href="https://github.com/p-ranav/indicators/blob/master/LICENSE">
|
|
<img src="https://img.shields.io/badge/License-MIT-yellow.svg" alt="license"/>
|
|
</a>
|
|
<img src="https://img.shields.io/badge/version-1.0-blue.svg?cacheSeconds=2592000" alt="version"/>
|
|
</p>
|
|
|
|
<p align="center">
|
|
<img src="img/demo.gif"/>
|
|
</p>
|
|
|
|
# Highlights
|
|
|
|
* Thread-safe `ProgressBar` and `ProgressSpinner` classes
|
|
* Header-only library. Grab a copy of `include/indicators`
|
|
* MIT License
|
|
* Source for the above GIF can be found [here](demo/demo.cpp)
|
|
|
|
# Progress bar
|
|
|
|
To introduce a progress bar in your application, include `indicators/progress_bar.hpp` and create a `ProgressBar` object.
|
|
|
|
```cpp
|
|
#include <indicators/progress_bar.hpp>
|
|
|
|
int main() {
|
|
indicators::ProgressBar bar;
|
|
return 0;
|
|
}
|
|
```
|
|
|
|
Here's the general structure of a progress bar:
|
|
|
|
```
|
|
<prefix_text> <bar_start> <fill> <lead> <remaining> <bar_end> <progress_percentage>? <postfix_text>
|
|
^^^^^^^^^^^^^^^^^^ Bar Width ^^^^^^^^^^^^^^^^^^ ^^^^^ Show/Hide ^^^^^
|
|
```
|
|
|
|
Each of these elements (and more) can be configured using the ProgressBar API. Here's an example configuration:
|
|
|
|
```cpp
|
|
#include <indicators/progress_bar.hpp>
|
|
|
|
int main() {
|
|
indicators::ProgressBar bar;
|
|
|
|
// Configure the bar
|
|
bar.set_bar_width(50);
|
|
bar.start_bar_with("[");
|
|
bar.fill_bar_progress_with("=");
|
|
bar.lead_bar_progress_with(">");
|
|
bar.fill_bar_remainder_with(" ");
|
|
bar.end_bar_with("]");
|
|
bar.set_postfix_text("Getting started");
|
|
bar.set_foreground_color(indicators::Color::GREEN);
|
|
|
|
// Update bar state
|
|
|
|
return 0;
|
|
}
|
|
```
|
|
|
|
Now that the bar is configured, let's update the state of the bar. The amount of progress in ProgressBar is maintained as a float in range `[0, 100]`. When progress reaches 100, the progression is complete.
|
|
|
|
From application-level code, there are two ways in which you can update this progress:
|
|
|
|
## Update progress using `bar.tick()`
|
|
|
|
You can update the progress bar using `bar.tick()` which increments progress by exactly `1%`.
|
|
|
|
```cpp
|
|
#include <indicators/progress_bar.hpp>
|
|
#include <thread>
|
|
#include <chrono>
|
|
|
|
int main() {
|
|
indicators::ProgressBar bar;
|
|
|
|
// Configure the bar
|
|
bar.set_bar_width(50);
|
|
bar.start_bar_with("[");
|
|
bar.fill_bar_progress_with("=");
|
|
bar.lead_bar_progress_with(">");
|
|
bar.fill_bar_remainder_with(" ");
|
|
bar.end_bar_with("]");
|
|
bar.set_postfix_text("Getting started");
|
|
bar.set_foreground_color(indicators::Color::GREEN);
|
|
|
|
// Update bar state
|
|
while (true) {
|
|
bar.tick();
|
|
if (bar.is_completed())
|
|
break;
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(100));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
```
|
|
|
|
The above code will print a progress bar that goes from 0 to 100% at the rate of 1% every 100 ms.
|
|
|
|
## Updating progress using `bar.set_progress(value)`
|
|
|
|
If you'd rather control progress of the bar in discrete steps, consider using `bar.set_progress(value)`. Example:
|
|
|
|
```cpp
|
|
#include <indicators/progress_bar.hpp>
|
|
#include <thread>
|
|
#include <chrono>
|
|
|
|
int main() {
|
|
indicators::ProgressBar bar;
|
|
|
|
// Configure the bar
|
|
bar.set_bar_width(50);
|
|
bar.start_bar_with("[");
|
|
bar.fill_bar_progress_with("=");
|
|
bar.lead_bar_progress_with(">");
|
|
bar.fill_bar_remainder_with(" ");
|
|
bar.end_bar_with("]");
|
|
bar.set_postfix_text("Getting started");
|
|
bar.set_foreground_color(indicators::Color::GREEN);
|
|
|
|
// Update bar state
|
|
size_t i = 0;
|
|
while (i < 101) {
|
|
bar.set_progress(i);
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(100));
|
|
i += 10;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
```
|
|
|
|
The above code will print a progress bar that goes from 0 to 100% at the rate of 10% every 100 ms.
|
|
|
|
## Multi-threaded Example
|
|
|
|
```cpp
|
|
#include <indicators/progress_bar.hpp>
|
|
#include <vector>
|
|
|
|
int main() {
|
|
|
|
indicators::ProgressBar bar;
|
|
bar.set_bar_width(50);
|
|
bar.start_bar_with("[");
|
|
bar.fill_bar_progress_with("■");
|
|
bar.lead_bar_progress_with("■");
|
|
bar.fill_bar_remainder_with("-");
|
|
bar.end_bar_with("]");
|
|
bar.set_foreground_color(indicators::Color::YELLOW);
|
|
|
|
// As configured, the bar will look like this:
|
|
//
|
|
// [■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■-------------] 70%
|
|
//
|
|
//
|
|
|
|
std::atomic<size_t> index{0};
|
|
std::vector<std::string> status_text =
|
|
{
|
|
"Rocket.exe is not responding",
|
|
"Finding a replacement engineer",
|
|
"Buying more snacks",
|
|
"Assimilating the modding community",
|
|
"Crossing fingers",
|
|
"Porting KSP to a Nokia 3310"
|
|
};
|
|
|
|
// Let's say you want to append some status text to the right of the progress bar
|
|
// You can use bar.set_postfix_text(...) to append text to the right
|
|
//
|
|
// [■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■-------------] 70% Finding a replacement engineer
|
|
// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
//
|
|
//
|
|
|
|
auto job = [&bar, &index, &status_text]() {
|
|
while (true) {
|
|
if (bar.is_completed()) {
|
|
break;
|
|
}
|
|
bar.set_postfix_text(status_text[index % status_text.size()]);
|
|
bar.tick();
|
|
index += 1;
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(200));
|
|
}
|
|
};
|
|
|
|
std::thread first_job(job);
|
|
std::thread second_job(job);
|
|
std::thread third_job(job);
|
|
std::thread last_job(job);
|
|
|
|
first_job.join();
|
|
second_job.join();
|
|
third_job.join();
|
|
last_job.join();
|
|
|
|
return 0;
|
|
}
|
|
```
|
|
|
|
For more examples, checkout the examples in the `samples/` directory.
|
|
|
|
# Progress Spinner
|
|
|
|
To introduce a progress spinner in your application, include `indicators/progress_spinner.hpp` and create a `ProgressSpinner` object.
|
|
|
|
```cpp
|
|
#include <indicators/progress_spinner.hpp>
|
|
|
|
int main() {
|
|
indicators::ProgressSpinner spinner;
|
|
return 0;
|
|
}
|
|
```
|
|
|
|
Here's the general structure of a progress spinner:
|
|
|
|
```
|
|
<prefix_text> <spinner> <progress_percentage>? <postfix_text>
|
|
```
|
|
|
|
Each of these elements (and more) can be configured using the ProgressSpinner API. Here's an example configuration:
|
|
|
|
```cpp
|
|
#include <indicators/progress_spinner.hpp>
|
|
|
|
int main() {
|
|
indicators::ProgressSpinner spinner;
|
|
|
|
// Configure the spinner
|
|
spinner.set_prefix_text(" ");
|
|
spinner.set_postfix_text("Checking credentials");
|
|
spinner.set_foreground_color(indicators::Color::YELLOW);
|
|
spinner.set_spinner_states({"⠈", "⠐", "⠠", "⢀", "⡀", "⠄", "⠂", "⠁"});
|
|
|
|
// Update spinner state
|
|
|
|
return 0;
|
|
}
|
|
```
|
|
|
|
ProgressSpinner has a vector of strings: `spinner_states`. At each update, the spinner will pick the next string from this sequence to print to the console. The spinner state can be updated similarly to ProgressBars: Using either `tick()` or `set_progress(value)`.
|
|
|
|
```cpp
|
|
#include <indicators/progress_spinner.hpp>
|
|
|
|
int main() {
|
|
indicators::ProgressSpinner spinner;
|
|
|
|
// Configure the spinner
|
|
spinner.set_postfix_text("Checking credentials");
|
|
spinner.set_foreground_color(indicators::Color::YELLOW);
|
|
spinner.set_spinner_states({"⠈", "⠐", "⠠", "⢀", "⡀", "⠄", "⠂", "⠁"});
|
|
|
|
// Update spinner state
|
|
auto job = [&spinner]() {
|
|
while (true) {
|
|
if (spinner.is_completed()) {
|
|
spinner.set_foreground_color(indicators::Color::GREEN);
|
|
spinner.set_prefix_text("✔");
|
|
spinner.hide_spinner();
|
|
spinner.hide_percentage();
|
|
spinner.set_postfix_text("Authenticated!");
|
|
spinner.mark_as_completed();
|
|
break;
|
|
} else
|
|
spinner.tick();
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(40));
|
|
}
|
|
};
|
|
std::thread thread(job);
|
|
thread.join();
|
|
|
|
return 0;
|
|
}
|
|
```
|
|
|
|
## Contributing
|
|
Contributions are welcome, have a look at the [CONTRIBUTING.md](CONTRIBUTING.md) document for more information.
|
|
|
|
## License
|
|
The project is available under the [MIT](https://opensource.org/licenses/MIT) license.
|