93 lines
2.1 KiB
C++
93 lines
2.1 KiB
C++
#include <psemek/ui/event_interceptor.hpp>
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#include <psemek/ui/null_shape.hpp>
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namespace psemek::ui
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{
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std::shared_ptr<element> event_interceptor::set_child(std::shared_ptr<element> c)
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{
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auto old = std::move(child_);
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if (old) old->set_parent(nullptr);
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child_ = std::move(c);
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if (child_) child_->set_parent(this);
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children_[0] = child_.get();
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return old;
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}
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geom::box<float, 2> event_interceptor::size_constraints() const
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{
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if (child_)
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return child_->size_constraints();
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return element::size_constraints();
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}
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shape const & event_interceptor::shape() const
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{
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static const null_shape fallback_shape;
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if (child_)
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return child_->shape();
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return fallback_shape;
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}
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void event_interceptor::reshape(geom::box<float, 2> const & bbox)
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{
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if (child_)
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child_->reshape(bbox);
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}
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void event_interceptor::on_mouse_move(std::function<bool(mouse_move const &)> callback)
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{
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mouse_move_callback_ = std::move(callback);
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}
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void event_interceptor::on_mouse_click(std::function<bool(mouse_click const &)> callback)
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{
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mouse_click_callback_ = std::move(callback);
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}
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void event_interceptor::on_mouse_wheel(std::function<bool(mouse_wheel const &)> callback)
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{
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mouse_wheel_callback_ = std::move(callback);
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}
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void event_interceptor::on_key_press(std::function<bool(key_press const &)> callback)
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{
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key_press_callback_ = std::move(callback);
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}
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bool event_interceptor::on_event(mouse_move const & event)
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{
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if (child_)
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mouseover_ = child_->shape().contains(geom::cast<float>(event.position));
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else
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mouseover_ = false;
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if (mouseover_ && mouse_move_callback_)
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return mouse_move_callback_(event);
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return false;
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}
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bool event_interceptor::on_event(mouse_click const & event)
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{
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if (mouseover_ && mouse_click_callback_)
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return mouse_click_callback_(event);
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return false;
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}
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bool event_interceptor::on_event(mouse_wheel const & event)
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{
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if (mouseover_ && mouse_wheel_callback_)
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return mouse_wheel_callback_(event);
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return false;
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}
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bool event_interceptor::on_event(key_press const & event)
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{
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if (key_press_callback_)
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return key_press_callback_(event);
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return false;
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}
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}
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