Element.cpp

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#include "Element.hpp"
 
#include "Internal/TextSlice.hpp"
 
#include "MayaFlux/Buffers/Textures/TextureBuffer.hpp"
#include "MayaFlux/Kinesis/GeometryPrimitives.hpp"
#include "MayaFlux/Portal/Text/InkPress.hpp"
 
namespace MayaFlux::Portal::Forma {
 
namespace {
 
    /// @brief weight=1 is this pipeline's own convention, not Kinesis's: it
    ///        is what forma_multi.frag reads to select textures[0]. Kinesis::
    ///        textured_mesh_rect() has no opinion on what the value means -
    ///        that domain knowledge stays here, at the one place it applies.
    constexpr float k_single_texture_weight = 1.F;
 
} // namespace
 
Element& Element::with_texture(
    const std::shared_ptr<Core::VKImage>& image,
    Kinesis::AABB2D region)
{
    if (!buffer)
        return *this;
 
    texture = image;
    buffer.submit(Kinesis::textured_mesh_rect(region, k_single_texture_weight));
    buffer.bind_texture(0, image);
    return *this;
}
 
Element& Element::with_texture(
    const std::shared_ptr<Buffers::TextureBuffer>& buf,
    Kinesis::AABB2D region)
{
    return with_texture(buf->get_texture(), region);
}
 
Element& Element::with_text(
    std::string_view text,
    std::optional<Portal::Text::PressParams> params,
    Kinesis::AABB2D region)
{
    if (!buffer)
        return *this;
 
    text_slice = internal::TextSlice::make(
        buffer, region, params.value_or(Portal::Text::PressParams {}), text);
    return *this;
}
 
void Element::set_text(std::string_view text, std::optional<Portal::Text::PressParams> params)
{
    if (!text_slice)
        return;
 
    text_slice->assign(text, params.value_or(Portal::Text::PressParams {}));
}
 
Element& Element::retarget(Kinesis::AABB2D region)
{
    if (!buffer)
        return *this;
 
    if (text_slice) {
        text_slice->set_bounds(region);
        return *this;
    }
 
    buffer.submit(Kinesis::textured_mesh_rect(region, k_single_texture_weight));
    return *this;
}
 
} // namespace MayaFlux::Portal::Forma