159 lines
2.7 KiB
C++
159 lines
2.7 KiB
C++
#include <psemek/ui/button.hpp>
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namespace psemek::ui
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{
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label * button::label() const
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{
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return dynamic_cast<struct label *>(child().get());
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}
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image_view * button::icon() const
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{
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return dynamic_cast<struct image_view *>(child().get());
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}
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bool button::on_event(mouse_move const & e)
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{
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bool const over = shape().contains(math::cast<float>(e.position));
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switch (state_) {
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case state_t::normal:
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if (over)
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{
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state_ = state_t::mouseover;
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on_state_changed(state_t::normal);
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}
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break;
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case state_t::mouseover:
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case state_t::mousedown:
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if (!over)
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{
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auto old = state_;
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state_ = state_t::normal;
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on_state_changed(old);
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}
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break;
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}
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return false;
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}
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bool button::on_event(mouse_click const & e)
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{
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if (e.button != mouse_button::left) return false;
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switch (state_) {
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case state_t::normal:
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break;
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case state_t::mouseover:
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if (e.down)
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{
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state_ = state_t::mousedown;
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post_on_click();
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on_state_changed(state_t::mouseover);
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return true;
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}
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break;
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case state_t::mousedown:
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if (!e.down)
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{
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state_ = state_t::mouseover;
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post_on_release();
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on_state_changed(state_t::mousedown);
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return true;
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}
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break;
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}
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return false;
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}
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void button::update(float dt)
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{
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if (repeat_)
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{
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repeat_->timer += dt;
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switch (repeat_->state)
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{
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case repeat::state_t::idle:
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break;
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case repeat::state_t::wait:
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if (repeat_->timer >= repeat_->wait)
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{
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repeat_->timer -= repeat_->wait;
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repeat_->state = repeat::state_t::repeat;
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post_on_click();
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}
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break;
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case repeat::state_t::repeat:
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if (repeat_->timer >= repeat_->period)
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{
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repeat_->timer -= repeat_->period;
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repeat_->state = repeat::state_t::repeat;
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post_on_click();
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}
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break;
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}
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}
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}
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void button::set_enabled(bool value)
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{
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element::set_enabled(value);
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if (!value && repeat_)
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repeat_->state = repeat::state_t::idle;
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}
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void button::set_hidden(bool value)
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{
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element::set_hidden(value);
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if (value && repeat_)
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repeat_->state = repeat::state_t::idle;
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}
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void button::set_repeat(float wait, float period)
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{
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repeat_ = repeat{wait, period};
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}
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void button::set_no_repeat()
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{
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repeat_ = std::nullopt;
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}
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void button::on_state_changed(state_t old)
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{
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if (repeat_)
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{
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if (state() == state_t::mousedown)
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{
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repeat_->timer = 0.f;
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repeat_->state = repeat::state_t::wait;
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}
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else
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{
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repeat_->state = repeat::state_t::idle;
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}
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}
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if (state() == state_t::mousedown || old == state_t::mousedown)
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{
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post_reshape();
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}
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}
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void button::post_on_click()
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{
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if (on_click_callback_)
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post(on_click_callback_);
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}
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void button::post_on_release()
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{
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if (on_release_callback_)
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post(on_release_callback_);
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}
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}
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