public async Task <bool> Execute(IWorkspace workspace, object arg)
{
var entities = await workspace.InputService.GetEntities();
if (entities.Cancel || !entities.HasValue)
{
return(false);
}
if (!entities.Value.Any())
{
return(true);
}
var origin = await workspace.InputService.GetPoint(new UserDirective("Point of rotation"));
if (origin.Cancel || !origin.HasValue)
{
return(false);
}
var angleText = await workspace.InputService.GetText(prompt : "Angle of rotation");
if (angleText.Cancel || !angleText.HasValue)
{
return(false);
}
double angle;
if (double.TryParse(angleText.Value, out angle))
{
var drawing = workspace.Drawing;
foreach (var ent in entities.Value)
{
drawing = drawing.Replace(ent, EditUtilities.Rotate(ent, origin.Value, angle));
}
workspace.Update(drawing: drawing);
return(true);
}
return(false);
}
public async Task <bool> Execute(IWorkspace workspace, object arg)
{
var entities = await workspace.InputService.GetEntities();
if (entities.Cancel || !entities.HasValue)
{
return(false);
}
if (!entities.Value.Any())
{
return(true);
}
var origin = await workspace.InputService.GetPoint(new UserDirective("Point of rotation"));
if (origin.Cancel || !origin.HasValue)
{
return(false);
}
var entityPrimitives = entities.Value.SelectMany(e => e.GetPrimitives()).ToArray();
var angleValue = await workspace.InputService.GetAngleInDegrees("Angle of rotation", onCursorMove : angleInDegrees => entityPrimitives.Select(p => EditUtilities.Rotate(p, origin.Value, angleInDegrees)));
if (angleValue.Cancel || !angleValue.HasValue)
{
return(false);
}
var rotationAngle = angleValue.Value;
var drawing = workspace.Drawing;
foreach (var ent in entities.Value)
{
drawing = drawing.Replace(ent, EditUtilities.Rotate(ent, origin.Value, rotationAngle));
}
workspace.Update(drawing: drawing);
return(true);
}
private void DoRotate(Entity entityToRotate, Vector origin, double angleInDegrees, Entity expectedResult)
{
var actual = EditUtilities.Rotate(entityToRotate, origin, angleInDegrees);
Assert.True(expectedResult.EquivalentTo(actual));
}