stuff-from-scratch/test/graphics/TestD2dOffScreenRendering.cpp

#include "TestFramework.h"
#include "TestUtils.h"
#include "TestRenderUtils.h"

#include "RectangleNode.h"
#include "CircleNode.h"
#include "LineNode.h"
#include "PathNode.h"

void addRect(const Point& loc, std::vector<std::unique_ptr<AbstractVisualNode> >& nodes, double radius = 0.0)
{
	auto node = std::make_unique<RectangleNode>(loc, 150.0, 100.0);
	node->setRadius(radius);
	nodes.push_back(std::move(node));
}

void addCircle(const Point& loc, std::vector<std::unique_ptr<AbstractVisualNode> >& nodes, double minorRadius = 0.0)
{
	const auto radius = 50.0;
	auto centre_loc = loc;
	centre_loc.move(0.0, radius);

	auto node = std::make_unique<CircleNode>(centre_loc, radius);

	if (minorRadius != 0.0)
	{
		node->setMinorRadius(minorRadius);
	}

	nodes.push_back(std::move(node));
}

void addLine(const Point& loc, std::vector<std::unique_ptr<AbstractVisualNode> >& nodes)
{
	std::vector<Point> points = { Point(150.0, 100.0) };
	auto node = std::make_unique<LineNode>(loc, points);
	nodes.push_back(std::move(node));
}

void addPath(const Point& loc, const std::string& path, std::vector<std::unique_ptr<AbstractVisualNode> >& nodes)
{
	auto node = std::make_unique<PathNode>(loc, path);
	nodes.push_back(std::move(node));
}

TEST_CASE(TestD2dOffScreenRendering, "graphics")
{
	TestRenderer renderer(800, 800);

	std::vector<std::unique_ptr<AbstractVisualNode> > nodes;

	auto loc = Point(10, 10);
	addRect(loc, nodes);

	loc.move(250, 0);
	addCircle(loc, nodes);

	loc.move(100, 0);
	addLine(loc, nodes);

	loc = Point(10, 150);
	addRect(loc, nodes, 10.0);

	loc.move(250, 0);
	addCircle(loc, nodes, 75.0);

	loc.move(100, 0);
	addPath(loc, "M0 0 h150 v100 h-150Z", nodes);

	auto scene = renderer.getScene();
	for (const auto& node : nodes)
	{
		scene->addNode(node.get());
	}
	renderer.write(TestUtils::getTestOutputDir(__FILE__) / "out.png");
};