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Change ui::key_interceptor to generic ui::event_interceptor

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This commit is contained in:
Nikita Lisitsa 2022-02-27 12:15:31 +03:00
parent 5be37d2b93
commit 5d116ad79a
4 changed files with 132 additions and 90 deletions
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44
libs/ui/include/psemek/ui/event_interceptor.hpp Normal file
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#pragma once
#include <psemek/ui/element.hpp>
#include <functional>
namespace psemek::ui
{
struct event_interceptor
: element
{
children_range children() const override { return children_; }
virtual std::shared_ptr<element> set_child(std::shared_ptr<element> c);
geom::box<float, 2> size_constraints() const override;
struct shape const & shape() const override;
void reshape(geom::box<float, 2> const & bbox) override;
void on_mouse_move(std::function<bool(mouse_move const &)> callback);
void on_mouse_click(std::function<bool(mouse_click const &)> callback);
void on_mouse_wheel(std::function<bool(mouse_wheel const &)> callback);
void on_key_press(std::function<bool(key_press const &)> callback);
bool on_event(mouse_move const & event) override;
bool on_event(mouse_click const & event) override;
bool on_event(mouse_wheel const & event) override;
bool on_event(key_press const & event) override;
void draw(painter &) const override {}
private:
std::shared_ptr<element> child_;
element * children_[1]{nullptr};
std::function<bool(mouse_move const &)> mouse_move_callback_;
std::function<bool(mouse_click const &)> mouse_click_callback_;
std::function<bool(mouse_wheel const &)> mouse_wheel_callback_;
std::function<bool(key_press const &)> key_press_callback_;
};
}

35
libs/ui/include/psemek/ui/key_interceptor.hpp
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#pragma once
#include <psemek/ui/element.hpp>
#include <functional>
namespace psemek::ui
{
struct key_interceptor
: element
{
children_range children() const override { return children_; }
virtual std::shared_ptr<element> set_child(std::shared_ptr<element> c);
geom::box<float, 2> size_constraints() const override;
struct shape const & shape() const override;
void reshape(geom::box<float, 2> const & bbox) override;
void on_key_down(std::function<bool(SDL_Keycode)> callback);
bool on_event(key_press const & event) override;
void draw(painter &) const override {}
private:
std::shared_ptr<element> child_;
element * children_[1]{nullptr};
std::function<bool(SDL_Keycode)> callback_;
};
}

88
libs/ui/source/event_interceptor.cpp Normal file
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#include <psemek/ui/event_interceptor.hpp>
#include <psemek/ui/null_shape.hpp>
namespace psemek::ui
{
std::shared_ptr<element> event_interceptor::set_child(std::shared_ptr<element> c)
{
auto old = std::move(child_);
if (old) old->set_parent(nullptr);
child_ = std::move(c);
if (child_) child_->set_parent(this);
children_[0] = child_.get();
return old;
}
geom::box<float, 2> event_interceptor::size_constraints() const
{
if (child_)
return child_->size_constraints();
return element::size_constraints();
}
shape const & event_interceptor::shape() const
{
static const null_shape fallback_shape;
if (child_)
return child_->shape();
return fallback_shape;
}
void event_interceptor::reshape(geom::box<float, 2> const & bbox)
{
if (child_)
child_->reshape(bbox);
}
void event_interceptor::on_mouse_move(std::function<bool(mouse_move const &)> callback)
{
mouse_move_callback_ = std::move(callback);
}
void event_interceptor::on_mouse_click(std::function<bool(mouse_click const &)> callback)
{
mouse_click_callback_ = std::move(callback);
}
void event_interceptor::on_mouse_wheel(std::function<bool(mouse_wheel const &)> callback)
{
mouse_wheel_callback_ = std::move(callback);
}
void event_interceptor::on_key_press(std::function<bool(key_press const &)> callback)
{
key_press_callback_ = std::move(callback);
}
bool event_interceptor::on_event(mouse_move const & event)
{
if (mouse_move_callback_)
return mouse_move_callback_(event);
return false;
}
bool event_interceptor::on_event(mouse_click const & event)
{
if (mouse_click_callback_)
return mouse_click_callback_(event);
return false;
}
bool event_interceptor::on_event(mouse_wheel const & event)
{
if (mouse_wheel_callback_)
return mouse_wheel_callback_(event);
return false;
}
bool event_interceptor::on_event(key_press const & event)
{
if (key_press_callback_)
return key_press_callback_(event);
return false;
}
}

55
libs/ui/source/key_interceptor.cpp
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@ -1,55 +0,0 @@
#include <psemek/ui/key_interceptor.hpp>
#include <psemek/ui/null_shape.hpp>
namespace psemek::ui
{
std::shared_ptr<element> key_interceptor::set_child(std::shared_ptr<element> c)
{
auto old = std::move(child_);
if (old) old->set_parent(nullptr);
child_ = std::move(c);
if (child_) child_->set_parent(this);
children_[0] = child_.get();
return old;
}
geom::box<float, 2> key_interceptor::size_constraints() const
{
if (child_)
return child_->size_constraints();
return element::size_constraints();
}
shape const & key_interceptor::shape() const
{
static const null_shape fallback_shape;
if (child_)
return child_->shape();
return fallback_shape;
}
void key_interceptor::reshape(geom::box<float, 2> const & bbox)
{
if (child_)
child_->reshape(bbox);
}
void key_interceptor::on_key_down(std::function<bool(SDL_Keycode)> callback)
{
callback_ = std::move(callback);
}
bool key_interceptor::on_event(key_press const & event)
{
if (callback_ && event.down)
{
return callback_(event.key);
}
return false;
}
}