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#include "svgIcon.h"
#include <resource.h>
SvgIcon::SvgIcon(ImageDimensions dim, const std::filesystem::path & path)
{
const auto svgDoc = lunasvg::Document::loadFromFile(Resource::mapPath(path).native());
if (!svgDoc) {
throw std::runtime_error("Failed to load SVG from " + path.string());
}
auto bitmap = svgDoc->renderToBitmap(dim.x, dim.y);
if (bitmap.isNull()) {
throw std::runtime_error("Failed to render SVG " + path.string());
}
bitmap.convertToRGBA();
texture.storage(1, GL_RGBA8, dim);
texture.parameter(GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
texture.parameter(GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
texture.parameter(GL_TEXTURE_MIN_FILTER, GL_LINEAR);
texture.parameter(GL_TEXTURE_MAG_FILTER, GL_LINEAR);
texture.image(dim, GL_RGBA, GL_UNSIGNED_BYTE, bitmap.data());
}
ImTextureID
SvgIcon::operator*() const
{
static_assert(sizeof(glTexture<GL_TEXTURE_2D>) <= sizeof(ImTextureID));
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast,performance-no-int-to-ptr) This is how ImGui works
return reinterpret_cast<ImTextureID>(*texture);
}
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