private string BeginDraw()
{
if (_deviceService == null)
{
return(Text + "\n\n" + GetType());
}
string deviceResetError = HandleDeviceReset();
if (!string.IsNullOrEmpty(deviceResetError))
{
return(deviceResetError);
}
GLControl control = GLControl.FromHandle(_deviceService.GraphicsDevice.PresentationParameters.DeviceWindowHandle) as GLControl;
if (control != null)
{
control.Context.MakeCurrent(WindowInfo);
_deviceService.GraphicsDevice.PresentationParameters.BackBufferHeight = ClientSize.Height;
_deviceService.GraphicsDevice.PresentationParameters.BackBufferWidth = ClientSize.Width;
}
Viewport viewport = new Viewport();
viewport.X = 0;
viewport.Y = 0;
viewport.Width = ClientSize.Width;
viewport.Height = ClientSize.Height;
viewport.MinDepth = 0;
viewport.MaxDepth = 1;
Viewport viewport2 = new Viewport();
viewport2.X = 0;
viewport2.Y = 0;
viewport2.Width = 0;
viewport2.Height = 0;
viewport2.MinDepth = 0;
viewport2.MaxDepth = 1;
if (GraphicsDevice.Viewport.Equals(viewport) == false)
{
GraphicsDevice.Viewport = viewport;
var zoom = _camera.Zoom;
_camera = new Camera(viewport2);
_camera.Zoom = zoom;
ServiceLocator.Add(_camera);
}
return(null);
}
/// <summary>
/// Attempts to begin drawing the control. Returns an error message string
/// if this was not possible, which can happen if the graphics device is
/// lost, or if we are running inside the Form designer.
/// </summary>
string BeginDraw()
{
// If we have no graphics device, we must be running in the designer.
if (graphicsDeviceService == null)
{
return(Text + "\n\n" + GetType());
}
// Make sure the graphics device is big enough, and is not lost.
string deviceResetError = HandleDeviceReset();
if (!string.IsNullOrEmpty(deviceResetError))
{
return(deviceResetError);
}
GLControl control = GLControl.FromHandle(graphicsDeviceService.GraphicsDevice.PresentationParameters.DeviceWindowHandle) as GLControl;
if (control != null)
{
control.Context.MakeCurrent(WindowInfo);
graphicsDeviceService.GraphicsDevice.PresentationParameters.BackBufferHeight = ClientSize.Height;
graphicsDeviceService.GraphicsDevice.PresentationParameters.BackBufferWidth = ClientSize.Width;
control.KeyDown += new KeyEventHandler(control_KeyDown);
}
// Many GraphicsDeviceControl instances can be sharing the same
// GraphicsDevice. The device backbuffer will be resized to fit the
// largest of these controls. But what if we are currently drawing
// a smaller control? To avoid unwanted stretching, we set the
// viewport to only use the top left portion of the full backbuffer.
Viewport viewport = new Viewport();
viewport.X = 0;
viewport.Y = 0;
viewport.Width = ClientSize.Width;
viewport.Height = ClientSize.Height;
viewport.MinDepth = 0;
viewport.MaxDepth = 1;
GraphicsDevice.Viewport = viewport;
return(null);
}
private string BeginDraw()
{
if (_deviceService == null)
{
return(Text + "\n\n" + GetType());
}
string deviceResetError = HandleDeviceReset();
if (!string.IsNullOrEmpty(deviceResetError))
{
return(deviceResetError);
}
GLControl control = GLControl.FromHandle(_deviceService.GraphicsDevice.PresentationParameters.DeviceWindowHandle) as GLControl;
if (control != null)
{
control.Context.MakeCurrent(WindowInfo);
_deviceService.GraphicsDevice.PresentationParameters.BackBufferHeight = ClientSize.Height;
_deviceService.GraphicsDevice.PresentationParameters.BackBufferWidth = ClientSize.Width;
}
Viewport viewport = new Viewport();
viewport.X = 0;
viewport.Y = 0;
viewport.Width = ClientSize.Width;
viewport.Height = ClientSize.Height;
viewport.MinDepth = 0;
viewport.MaxDepth = 1;
if (GraphicsDevice.Viewport.Bounds != viewport.Bounds)
{
GraphicsDevice.Viewport = viewport;
}
return(null);
}