Rack/include/app/SVGPanel.hpp

#pragma once
#include "app/common.hpp"
#include "widgets/TransparentWidget.hpp"
#include "widgets/FramebufferWidget.hpp"
#include "widgets/SVGWidget.hpp"
#include "app.hpp"


namespace rack {


struct PanelBorder : TransparentWidget {
	void draw(NVGcontext *vg) override {
		NVGcolor borderColor = nvgRGBAf(0.5, 0.5, 0.5, 0.5);
		nvgBeginPath(vg);
		nvgRect(vg, 0.5, 0.5, box.size.x - 1.0, box.size.y - 1.0);
		nvgStrokeColor(vg, borderColor);
		nvgStrokeWidth(vg, 1.0);
		nvgStroke(vg);
	}
};


struct SVGPanel : FramebufferWidget {
	void step() override {
		if (math::isNear(app()->window->pixelRatio, 1.0)) {
			// Small details draw poorly at low DPI, so oversample when drawing to the framebuffer
			oversample = 2.0;
		}
		FramebufferWidget::step();
	}

	void setBackground(std::shared_ptr<SVG> svg) {
		SVGWidget *sw = new SVGWidget;
		sw->setSVG(svg);
		addChild(sw);

		// Set size
		box.size = sw->box.size.div(RACK_GRID_SIZE).round().mult(RACK_GRID_SIZE);

		PanelBorder *pb = new PanelBorder;
		pb->box.size = box.size;
		addChild(pb);
	}
};



} // namespace rack