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Capture mouse for the slider component.

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ArthurSonzogni
2021-05-01 18:13:56 +02:00
parent 0af8201023
commit eb399d20c5
15 changed files with 157 additions and 35 deletions
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73
src/ftxui/component/slider.cpp
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@@ -1,9 +1,13 @@
#include "ftxui/component/slider.hpp"
#include "ftxui/component/captured_mouse.hpp"
#include "ftxui/component/screen_interactive.hpp"
namespace ftxui {
class SliderInt : public Component {
template<class T>
class SliderImpl : public Component {
public:
SliderInt(std::wstring label, int* value, int min, int max, int increment)
SliderImpl(std::wstring label, T* value, T min, T max, T increment)
: label_(label),
value_(value),
min_(min),
@@ -45,36 +49,59 @@ class SliderInt : public Component {
}
bool OnMouseEvent(Event event) {
if (!box_.Contain(event.mouse().x, event.mouse().y))
return false;
TakeFocus();
if (!gauge_box_.Contain(event.mouse().x, event.mouse().y))
return false;
if (event.mouse().button == Mouse::Left &&
event.mouse().motion == Mouse::Pressed) {
*value_ = min_ + (event.mouse().x - gauge_box_.x_min) * (max_ - min_) /
(gauge_box_.x_max - gauge_box_.x_min);
if (captured_mouse_ && event.mouse().motion == Mouse::Released) {
captured_mouse_ = nullptr;
return true;
}
return true;
if (box_.Contain(event.mouse().x, event.mouse().y) &&
event.screen()->CaptureMouse()) {
TakeFocus();
}
if (event.mouse().button == Mouse::Left &&
event.mouse().motion == Mouse::Pressed &&
gauge_box_.Contain(event.mouse().x, event.mouse().y) &&
!captured_mouse_) {
captured_mouse_ = event.screen()->CaptureMouse();
}
if (captured_mouse_) {
*value_ = min_ + (event.mouse().x - gauge_box_.x_min) * (max_ - min_) /
(gauge_box_.x_max - gauge_box_.x_min);
*value_ = std::max(min_, std::min(max_, *value_));
return true;
}
return false;
}
private:
std::wstring label_;
int* value_;
int min_;
int max_;
int increment_ = 1;
T* value_;
T min_;
T max_;
T increment_ = 1;
Box box_;
Box gauge_box_;
CapturedMouse captured_mouse_;
};
ComponentPtr Slider(std::wstring label,
int* value,
int min,
int max,
int increment) {
return std::make_unique<SliderInt>(std::move(label), value, min, max,
increment);
template <class T>
ComponentPtr Slider(std::wstring label, T* value, T min, T max, T increment) {
return std::make_unique<SliderImpl<T>>(std::move(label), value, min, max,
increment);
}
template ComponentPtr Slider(std::wstring label,
int* value,
int min,
int max,
int increment);
template ComponentPtr Slider(std::wstring label,
float* value,
float min,
float max,
float increment);
} // namespace ftxui