public override void Execute()
{
var graphicObj = new GraphicObj(GraphicName);
GraphicsHost.AddGraphic(graphicObj);
Console.WriteLine("Create graphic {0}.", GraphicName);
}
/// <summary>
/// Constructor.
/// </summary>
public RenderHost(IRenderHostSetup renderHostSetup) :
base(renderHostSetup)
{
GraphicsHost = Graphics.FromHwnd(HostHandle);
GraphicsHostDeviceContext = GraphicsHost.GetHdc();
CreateSurface(HostInput.Size);
CreateBuffers(BufferSize);
FontConsolas12 = new Font("Consolas", 12);
}
protected CommandBase(GraphicsHost graphicsHost)
{
if (graphicsHost == null)
{
throw new ArgumentNullException("graphicsHost");
}
GraphicsHost = graphicsHost;
}
private void DisposeGraphicsHost()
{
if (GraphicsHost == null)
{
throw new NullReferenceException("GrahpicsHost in Drivers\\GraphicsDeviceInterface\\Render\\RenderHost is NULL");
}
GraphicsHost.Dispose();
GraphicsHost = default;
}
/// <inheritdoc />
public override void Dispose()
{
FontConsolas12.Dispose();
FontConsolas12 = default;
GraphicsHost.Dispose();
GraphicsHost = default;
base.Dispose();
}
private void DisposeGraphicsHostDeviceContext()
{
if (GraphicsHostDeviceContext == null || GraphicsHost == null)
{
throw new NullReferenceException("GraphicsHostDeviceContext or GraphicsHost in Drivers\\GraphicsDeviceInterface\\Render\\RenderHost is NULL");
}
GraphicsHost.ReleaseHdc(GraphicsHostDeviceContext);
GraphicsHostDeviceContext = default;
}
public ScreenRenderer(IntPtr hostHandle, Size bufferSize)
{
_fontConsolas12 = new Font("Consolas", 12);
FpsCounter = new FpsCounter(new TimeSpan(0, 0, 0, 0, 1000));
BackBuffer = new DirectBitmap(bufferSize);
RenderBitmaps = new ConcurrentBag <Bitmap>();
GraphicsHost = Graphics.FromHwnd(hostHandle);
GraphicsHostDeviceContext = GraphicsHost.GetHdc();
BufferedGraphics = BufferedGraphicsManager.Current.Allocate(GraphicsHostDeviceContext, new Rectangle(new Point(0, 0), bufferSize));
HostHandle = hostHandle;
_bufferSize = bufferSize;
}
public override void Undo(ExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
var graphicName = executionContext.GraphicName;
GraphicsHost.RemoveGraphic(graphicName);
Console.WriteLine("Undo adding graphic {0}.", graphicName);
}
public override ExecutionContext Execute(ExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
var graphicName = executionContext.GraphicName;
var removedObj = GraphicsHost.RemoveGraphic(graphicName);
Console.WriteLine("Remove graphic {0}.", graphicName);
return(new ExecutionContext(GetType(), graphicName, graphicName, removedObj));
}
protected CommandBase(string graphicName, GraphicsHost graphicsHost)
{
if (string.IsNullOrEmpty(graphicName))
{
throw new ArgumentException("Graphic name can't be null or empty.", "graphicName");
}
if (graphicsHost == null)
{
throw new ArgumentNullException("graphicsHost");
}
GraphicsHost = graphicsHost;
GraphicName = graphicName;
}
/// <inheritdoc />
public override void Dispose()
{
FontConsolas12.Dispose();
FontConsolas12 = default;
DisposeBuffers();
DisposeSurface();
GraphicsHost.ReleaseHdc(GraphicsHostDeviceContext);
GraphicsHostDeviceContext = default;
GraphicsHost.Dispose();
GraphicsHost = default;
base.Dispose();
}
public override void Redo(ExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (executionContext.ContextBeforeExecution == null)
{
throw new ArgumentException("ContextBeforeExecution can't be null.", "executionContext");
}
var newScale = (double)executionContext.ContextBeforeExecution;
GraphicsHost.ZoomInGraphic(executionContext.GraphicName, newScale);
Console.WriteLine("Redo zooming graphic {0} to scale {1}", executionContext.GraphicName, newScale);
}
public override void Undo(ExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (executionContext.ContextAfterExecution == null)
{
throw new ArgumentException("ContextAfterExecution can't be null.", "executionContext");
}
var oldScale = (double)executionContext.ContextAfterExecution;
GraphicsHost.ZoomInGraphic(executionContext.GraphicName, oldScale);
Console.WriteLine("Undo zooming graphic {0}, the graphic is rotated back to {1}.", executionContext.GraphicName, oldScale);
}
public override void Redo(ExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (executionContext.ContextBeforeExecution == null)
{
throw new ArgumentException("ContextBeforeExecution can't be null.", "executionContext");
}
var newPosition = (double)executionContext.ContextBeforeExecution;
GraphicsHost.MoveGraphic(executionContext.GraphicName, newPosition);
Console.WriteLine("Redo moving graphic {0} to position {1}", executionContext.GraphicName, newPosition);
}
public override ExecutionContext Execute(ExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (executionContext.ContextBeforeExecution == null)
{
throw new ArgumentException("ContextBeforeExecution can't be null.", "executionContext");
}
var newScale = (double)executionContext.ContextBeforeExecution;
var oldScale = GraphicsHost.ZoomInGraphic(executionContext.GraphicName, newScale);
Console.WriteLine("Rotate graphic {0} to scale {1}", executionContext.GraphicName, newScale);
return(new ExecutionContext(GetType(), executionContext.GraphicName, newScale, oldScale));
}
public override ExecutionContext Execute(ExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (executionContext.ContextBeforeExecution == null)
{
throw new ArgumentException("ContextBeforeExecution can't be null.", "executionContext");
}
var newPosition = (double)executionContext.ContextBeforeExecution;
var oldPosition = GraphicsHost.MoveGraphic(executionContext.GraphicName, newPosition);
Console.WriteLine("Move graphic {0} to position {1}", executionContext.GraphicName, newPosition);
return(new ExecutionContext(GetType(), executionContext.GraphicName, newPosition, oldPosition));
}
public void Dispose()
{
lock (_updateLock)
{
HostHandle = default;
GraphicsHost?.Dispose();
GraphicsHost = default;
FpsCounter?.Dispose();
FpsCounter = default;
RenderBitmaps.Clear();
RenderBitmaps = default;
_fontConsolas12?.Dispose();
_fontConsolas12 = default;
}
}
public override void Undo(ExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (executionContext.ContextAfterExecution == null)
{
throw new ArgumentException("ContextAfterExecution can't be null.", "executionContext");
}
var removedObj = executionContext.ContextAfterExecution as GraphicObj;
if (removedObj == null)
{
throw new ArgumentException("ContextAfterExecution should be GraphicObj type.", "executionContext");
}
GraphicsHost.AddGraphic(removedObj);
Console.WriteLine("Undo removing graphic {0}.", executionContext.GraphicName);
}
public override void Redo(ExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException("executionContext");
}
if (executionContext.ContextAfterExecution == null)
{
throw new ArgumentException("ContextAfterExecution can't be null.", "executionContext");
}
var objToAdd = executionContext.ContextAfterExecution as GraphicObj;
if (objToAdd == null)
{
throw new ArgumentException("ContextAfterExecution should be GraphicObj type.", "executionContext");
}
GraphicsHost.AddGraphic(objToAdd);
Console.Write("Redo adding graphic {0}.", executionContext.GraphicName);
}
public static Dictionary <Type, IStatelessCommand> Createommands()
{
var commands = new Dictionary <Type, IStatelessCommand>();
var graphicHost = new GraphicsHost();
IStatelessCommand command = new CreateGraphicCommand(graphicHost);
commands.Add(command.GetType(), command);
command = new RemoveGraphicCommand(graphicHost);
commands.Add(command.GetType(), command);
command = new MoveGraphicCommand(graphicHost);
commands.Add(command.GetType(), command);
command = new RotateGraphicCommand(graphicHost);
commands.Add(command.GetType(), command);
command = new ZoomInGraphicCommand(graphicHost);
commands.Add(command.GetType(), command);
return(commands);
}
public override void Execute()
{
_removedGraphicObj = GraphicsHost.RemoveGraphic(GraphicName);
Console.WriteLine("Reomve graphic {0} degree.", GraphicName);
}
public override void Redo()
{
GraphicsHost.AddGraphic(_oldObj);
Console.WriteLine("Redo creating graphic {0}.", GraphicName);
}
public override void Undo()
{
_oldObj = GraphicsHost.RemoveGraphic(GraphicName);
Console.WriteLine("Undo creating graphic {0}.", GraphicName);
}
public RotateGraphicCommand(string graphicName, double newAngle, GraphicsHost graphicsHost)
: base(graphicName, graphicsHost)
{
_newAngle = newAngle;
}
public CreateGraphicCommand(string graphicName, GraphicsHost graphicsHost)
: base(graphicName, graphicsHost)
{
}
public override void Undo()
{
GraphicsHost.RotateGraphic(GraphicName, _oldAngle);
Console.WriteLine("Undo rotating graphic {0} degree.", GraphicName);
}
public override void Execute()
{
_oldAngle = GraphicsHost.RotateGraphic(GraphicName, _newAngle);
Console.WriteLine("Rotate graphic {0} {1} degree.", GraphicName, _newAngle);
}
public override void Undo()
{
GraphicsHost.AddGraphic(_removedGraphicObj);
Console.WriteLine("Undo reomving graphic {0} degree.", GraphicName);
}
public override void Redo()
{
_oldAngle = GraphicsHost.RotateGraphic(GraphicName, _newAngle);
Console.WriteLine("Redo rotating graphic {0} {1} degree.", GraphicName, _newAngle);
}
public override void Redo()
{
_removedGraphicObj = GraphicsHost.RemoveGraphic(GraphicName);
Console.WriteLine("Redo reomving graphic {0} degree.", GraphicName);
}
