test/instancing_test.cpp

#include <rive/core/binary_reader.hpp>
#include <rive/file.hpp>
#include <rive/node.hpp>
#include <rive/shapes/clipping_shape.hpp>
#include <rive/shapes/rectangle.hpp>
#include <rive/shapes/shape.hpp>
#include "no_op_renderer.hpp"
#include <catch.hpp>
#include <cstdio>

TEST_CASE("cloning an ellipse works", "[instancing]")
{
	FILE* fp = fopen("../../test/assets/circle_clips.riv", "r");
	REQUIRE(fp != nullptr);

	fseek(fp, 0, SEEK_END);
	auto length = ftell(fp);
	fseek(fp, 0, SEEK_SET);
	uint8_t* bytes = new uint8_t[length];
	REQUIRE(fread(bytes, 1, length, fp) == length);
	auto reader = rive::BinaryReader(bytes, length);
	rive::File* file = nullptr;
	auto result = rive::File::import(reader, &file);

	REQUIRE(result == rive::ImportResult::success);
	REQUIRE(file != nullptr);
	REQUIRE(file->artboard() != nullptr);

	auto node = file->artboard()->find<rive::Shape>("TopEllipse");
	REQUIRE(node != nullptr);

	auto clonedNode = node->clone()->as<rive::Shape>();
	REQUIRE(node->x() == clonedNode->x());
	REQUIRE(node->y() == clonedNode->y());

	delete clonedNode;

	delete file;
	delete[] bytes;
}

TEST_CASE("instancing artboard clones clipped properties", "[instancing]")
{
	FILE* fp = fopen("../../test/assets/circle_clips.riv", "r");
	REQUIRE(fp != nullptr);

	fseek(fp, 0, SEEK_END);
	auto length = ftell(fp);
	fseek(fp, 0, SEEK_SET);
	uint8_t* bytes = new uint8_t[length];
	REQUIRE(fread(bytes, 1, length, fp) == length);
	auto reader = rive::BinaryReader(bytes, length);
	rive::File* file = nullptr;
	auto result = rive::File::import(reader, &file);

	REQUIRE(result == rive::ImportResult::success);
	REQUIRE(file != nullptr);
	REQUIRE(file->artboard() != nullptr);
	REQUIRE(!file->artboard()->isInstance());

	auto artboard = file->artboard()->instance();

	REQUIRE(artboard->isInstance());

	auto node = artboard->find("TopEllipse");
	REQUIRE(node != nullptr);
	REQUIRE(node->is<rive::Shape>());

	auto shape = node->as<rive::Shape>();
	REQUIRE(shape->clippingShapes().size() == 2);
	REQUIRE(shape->clippingShapes()[0]->source()->name() == "ClipRect2");
	REQUIRE(shape->clippingShapes()[1]->source()->name() == "BabyEllipse");

	artboard->updateComponents();

	rive::NoOpRenderer renderer;
	artboard->draw(&renderer);

	delete artboard;

	delete file;
	delete[] bytes;
}

TEST_CASE("instancing artboard doesn't clone animations", "[instancing]")
{
	FILE* fp = fopen("../../test/assets/juice.riv", "r");
	REQUIRE(fp != nullptr);

	fseek(fp, 0, SEEK_END);
	auto length = ftell(fp);
	fseek(fp, 0, SEEK_SET);
	uint8_t* bytes = new uint8_t[length];
	REQUIRE(fread(bytes, 1, length, fp) == length);
	auto reader = rive::BinaryReader(bytes, length);
	rive::File* file = nullptr;
	auto result = rive::File::import(reader, &file);

	REQUIRE(result == rive::ImportResult::success);
	REQUIRE(file != nullptr);
	REQUIRE(file->artboard() != nullptr);

	auto artboard = file->artboard()->instance();

	REQUIRE(file->artboard()->animationCount() == artboard->animationCount());
	REQUIRE(file->artboard()->firstAnimation() == artboard->firstAnimation());

	rive::LinearAnimation::deleteCount = 0;
	delete artboard;
	// Make sure no animations were deleted by deleting the instance.
	REQUIRE(rive::LinearAnimation::deleteCount == 0);

	size_t numberOfAnimations = file->artboard()->animationCount();
	delete file;
	// Now the animations should've been deleted.
	REQUIRE(rive::LinearAnimation::deleteCount == numberOfAnimations);

	delete[] bytes;
}