mirror of
https://github.com/ArthurSonzogni/FTXUI.git
synced 2025-09-28 16:29:34 +08:00
93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
// Copyright 2024 Arthur Sonzogni. All rights reserved.
|
|
// Use of this source code is governed by the MIT license that can be found in
|
|
// the LICENSE file.
|
|
#include <functional> // for function
|
|
#include <memory> // for make_shared
|
|
#include <utility> // for move
|
|
|
|
#include "ftxui/dom/elements.hpp" // for Element, Decorator, bgcolor, color
|
|
#include "ftxui/dom/node_decorator.hpp" // for NodeDecorator
|
|
#include "ftxui/screen/color.hpp" // for Color
|
|
#include "ftxui/screen/pixel.hpp" // for Pixel
|
|
#include "ftxui/screen/screen.hpp" // for Screen
|
|
|
|
namespace ftxui {
|
|
|
|
namespace {
|
|
|
|
class SelectionStyleReset : public NodeDecorator {
|
|
public:
|
|
explicit SelectionStyleReset(Element child)
|
|
: NodeDecorator(std::move(child)) {}
|
|
|
|
void Render(Screen& screen) final {
|
|
auto old_style = screen.GetSelectionStyle();
|
|
screen.SetSelectionStyle([](Pixel&) {});
|
|
NodeDecorator::Render(screen);
|
|
screen.SetSelectionStyle(old_style);
|
|
}
|
|
};
|
|
|
|
class SelectionStyle : public NodeDecorator {
|
|
public:
|
|
SelectionStyle(Element child, const std::function<void(Pixel&)>& style)
|
|
: NodeDecorator(std::move(child)), style_(style) {}
|
|
|
|
void Render(Screen& screen) final {
|
|
auto old_style = screen.GetSelectionStyle();
|
|
auto new_style = [&, old_style](Pixel& pixel) {
|
|
old_style(pixel);
|
|
style_(pixel);
|
|
};
|
|
screen.SetSelectionStyle(new_style);
|
|
NodeDecorator::Render(screen);
|
|
screen.SetSelectionStyle(old_style);
|
|
}
|
|
|
|
std::function<void(Pixel&)> style_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
/// @brief Reset the selection style of an element.
|
|
/// @param child The input element.
|
|
/// @return The output element with the selection style reset.
|
|
Element selectionStyleReset(Element child) {
|
|
return std::make_shared<SelectionStyleReset>(std::move(child));
|
|
}
|
|
|
|
/// @brief Set the background color of an element when selected.
|
|
/// Note that the style is applied on top of the existing style.
|
|
Decorator selectionBackgroundColor(Color foreground) {
|
|
return selectionStyle([foreground](Pixel& pixel) { //
|
|
pixel.background_color = foreground;
|
|
});
|
|
}
|
|
|
|
/// @brief Set the foreground color of an element when selected.
|
|
/// Note that the style is applied on top of the existing style.
|
|
Decorator selectionForegroundColor(Color foreground) {
|
|
return selectionStyle([foreground](Pixel& pixel) { //
|
|
pixel.foreground_color = foreground;
|
|
});
|
|
}
|
|
|
|
/// @brief Set the color of an element when selected.
|
|
/// @param foreground The color to be applied.
|
|
/// Note that the style is applied on top of the existing style.
|
|
Decorator selectionColor(Color foreground) {
|
|
return selectionForegroundColor(foreground);
|
|
}
|
|
|
|
/// @brief Set the style of an element when selected.
|
|
/// @param style The style to be applied.
|
|
/// Note that the style is applied on top of the existing style.
|
|
// NOLINTNEXTLINE
|
|
Decorator selectionStyle(std::function<void(Pixel&)> style) {
|
|
return [style](Element child) -> Element {
|
|
return std::make_shared<SelectionStyle>(std::move(child), style);
|
|
};
|
|
}
|
|
|
|
} // namespace ftxui
|