psemek/libs/ui/source/default_element_factory.cpp

106 lines
2 KiB
C++

#include <psemek/ui/default_element_factory.hpp>
#include <psemek/ui/box_shape.hpp>
namespace psemek::ui
{
namespace
{
struct button_impl
: button
{
button_impl()
{
set_label(std::make_unique<struct label>());
}
struct shape const & shape() const override
{
return shape_;
}
void reshape(geom::box<float, 2> const & bbox) override
{
shape_.box = bbox;
}
void draw(painter & p) const override
{
auto s = style();
if (!s) return;
if (s->shadow_offset != geom::vector{0, 0})
p.draw_rect(shape_.box + geom::cast<float>(s->shadow_offset), s->shadow_color);
if (s->border_width > 0)
p.draw_rect(shape_.box, s->border_color);
gfx::color_rgba color = s->fg_color;
if (state() == state_t::mouseover)
color = s->highlight_color;
else if (state() == state_t::mousedown)
color = s->action_color;
p.draw_rect(geom::shrink(shape_.box, 1.f * s->border_width), color);
}
geom::box<float, 2> size_constraints() const override
{
return {{{100.f, 200.f}, {50.f, 100.f}}};
}
private:
box_shape shape_;
};
}
struct default_element_factory::impl
{
std::shared_ptr<struct style> style;
impl();
template <typename T>
std::unique_ptr<T> create()
{
auto r = std::make_unique<T>();
r->set_style(style);
return r;
}
};
default_element_factory::impl::impl()
: style{std::make_shared<struct style>()}
{}
default_element_factory::default_element_factory()
: pimpl_{make_impl()}
{}
default_element_factory::~default_element_factory() = default;
void default_element_factory::set_style(std::shared_ptr<struct style> st)
{
impl().style = st;
}
std::shared_ptr<struct style> default_element_factory::style() const
{
return impl().style;
}
std::unique_ptr<button> default_element_factory::make_button(std::string text)
{
auto r = impl().create<button_impl>();
r->label()->set_text(std::move(text));
return r;
}
std::unique_ptr<screen> default_element_factory::make_screen()
{
return std::make_unique<screen>();
}
}