1 files changed, 34 insertions, 0 deletions
diff --git a/ui/svgIcon.cpp b/ui/svgIcon.cpp
new file mode 100644
index 0000000..499d9cc
--- /dev/null
+++ b/ui/svgIcon.cpp
@@ -0,0 +1,34 @@
+#include "svgIcon.h"
+#include "gl_traits.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();
+
+	glBindTexture(GL_TEXTURE_2D, texture);
+
+	glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
+	glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
+
+	glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, dim.x, dim.y, 0, GL_RGBA, GL_UNSIGNED_BYTE, bitmap.data());
+}
+
+ImTextureID
+SvgIcon::operator*() const
+{
+	static_assert(sizeof(glTexture) <= sizeof(ImTextureID));
+	// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast,performance-no-int-to-ptr) This is how ImGui works
+	return reinterpret_cast<ImTextureID>(*texture);
+}