FTXUI/examples/component/slider.cpp

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2021-04-29 06:18:58 +08:00
#include "ftxui/component/slider.hpp"
#include "ftxui/component/container.hpp"
#include "ftxui/component/screen_interactive.hpp"
#include "ftxui/component/toggle.hpp"
#include "ftxui/screen/string.hpp"
using namespace ftxui;
Element ColorTile(int red, int green, int blue) {
return text(L"")
| size(WIDTH, GREATER_THAN, 14)
| size(HEIGHT, GREATER_THAN, 7)
| bgcolor(Color::RGB(red, green, blue));
}
Element ColorString(int red, int green, int blue) {
return text(L"RGB = (" + //
std::to_wstring(red) + L"," + //
std::to_wstring(green) + L"," + //
std::to_wstring(blue) + L")" //
);
}
class MyComponent : public Component {
public:
MyComponent(int* red, int* green, int* blue, std::function<void(void)> quit)
: red_(red), green_(green), blue_(blue), quit_(quit) {
Add(&container_);
container_.Add(slider_red_.get());
container_.Add(slider_green_.get());
container_.Add(slider_blue_.get());
}
Element Render() {
return hbox({
ColorTile(*red_, *green_, *blue_),
separator(),
vbox({
slider_red_->Render(),
separator(),
slider_green_->Render(),
separator(),
slider_blue_->Render(),
separator(),
ColorString(*red_, *green_, *blue_),
}) | xflex,
}) |
border | size(WIDTH, LESS_THAN, 80);
}
bool OnEvent(Event event) {
if (event == Event::Return || event == Event::Escape)
quit_();
return Component::OnEvent(event);
}
private:
int* red_;
int* green_;
int* blue_;
Container container_ = Container::Vertical();
ComponentPtr slider_red_ = Slider(L"Red :", red_, 0, 255, 1);
ComponentPtr slider_green_ = Slider(L"Green:", green_, 0, 255, 1);
ComponentPtr slider_blue_ = Slider(L"Blue :", blue_, 0, 255, 1);
std::function<void(void)> quit_;
};
int main(int argc, const char* argv[]) {
auto screen = ScreenInteractive::TerminalOutput();
int red = 128;
int green = 25;
int blue = 100;
auto component = MyComponent(&red, &green, &blue, screen.ExitLoopClosure());
screen.Loop(&component);
}
// Copyright 2020 Arthur Sonzogni. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in
// the LICENSE file.