/// <inheritdoc cref="ICanvas"/>
public ICanvas DrawImage(string imageFile, PointPair box)
{
// Validates the arguments.
ValidationUtil.RequireFileExist(imageFile);
if (!FileUtil.IsImageFile(imageFile))
{
throw new ArgumentException($"imageFile({imageFile}) is not an image.");
}
ValidationUtil.RequireNonNull(box);
// Calculates the dimensions.
var rect = box.ToRectangle(currentDrawingSpace);
var image = XImage.FromFile(imageFile);
currentGfx.DrawImage(image, rect.X, rect.Y, rect.Width, rect.Height);
return(this);
}
public void Test_RequireFileExist_Null()
{
string file = null;
ValidationUtil.RequireFileExist(file);
}
public void Test_RequireFileExist_NoExist()
{
string file = ResourcesPath("no-exist-file");
ValidationUtil.RequireFileExist(file);
}
public void Test_RequireFileExist_Exist()
{
string file = ResourcesPath("test-text-file.txt");
ValidationUtil.RequireFileExist(file);
}