Siv3Dで画像連結ソフトを作る

Main.cpp

# include <Siv3D.hpp>

Image createImage(const Array<Image>& images)
{
	int width = 0;
	int height = 0;

	for (const auto& image : images)
	{
		width += image.width;
		height = Max<unsigned>(height, image.height);
	}

	return Image(width, height);
}

void overwriteImages(Image& output, const Array<Image>& images)
{
	int pos = 0;

	for (const auto& image : images)
	{
		image.overwrite(output, { pos, 0 });

		pos += image.width;
	}
}

void Main()
{
	Image output;
	Array<Image> images;
	Texture texture(output);

	while (System::Update())
	{
		ClearPrint();
		Println(images.size());

		if (Dragdrop::HasItems())
		{
			const Array<FilePath> filePaths = Dragdrop::GetFilePaths();

			for (const auto& filePath : filePaths)
			{
				Image image(filePath);

				if (!image.isEmpty)
				{
					images.push_back(image);
				}
			}

			output = createImage(images);

			overwriteImages(output, images);

			texture = Texture(output);
		}

		if (Input::KeyEnter.clicked)
		{
			output.save(L"Image/output.png");
			System::ExploreFolder(L"Image");
		}

		texture.draw();
	}
}