/// <summary>
/// Creates or connects a PlatformWindow to the given SystemWindow
/// </summary>
public void ShowSystemWindow(SystemWindow systemWindow)
{
if (_graphicsDevice == null)
{
WindowCreateInfo windowCI = new WindowCreateInfo()
{
X = 100,
Y = 100,
WindowWidth = 960,
WindowHeight = 540,
WindowTitle = "Veldrid Tutorial",
};
Sdl2Window window = VeldridStartup.CreateWindow(ref windowCI);
veldridPlatformWindow = new VeldridSystemWindow(this);
systemWindow.PlatformWindow = veldridPlatformWindow;
_graphicsDevice = VeldridStartup.CreateGraphicsDevice(window, GraphicsBackend.OpenGL);
window.KeyDown += (KeyEvent keyEvent) =>
{
systemWindow.OnKeyDown(
new KeyEventArgs((Keys)keyEvent.Key));
};
window.KeyUp += (KeyEvent keyEvent) =>
{
systemWindow.OnKeyUp(
new KeyEventArgs((Keys)keyEvent.Key));
};
// setup our veldrid gl immediate mode emulator
var veldridGl = new VeldridGL();
MatterHackers.RenderOpenGl.OpenGl.GL.Instance = veldridGl;
veldridGl.CreateResources(_graphicsDevice);
ShaderData.Instance.CreateResources(_graphicsDevice);
long runNextMs = 0;
VectorMath.Vector2 lastPosition = VectorMath.Vector2.Zero;
while (window.Exists)
{
InputSnapshot inputSnapshot = window.PumpEvents();
var position = new VectorMath.Vector2(inputSnapshot.MousePosition.X, window.Height - inputSnapshot.MousePosition.Y);
if (lastPosition != position)
{
systemWindow.OnMouseMove(new MouseEventArgs(MouseButtons.None, 0, position.X, position.Y, 0));
}
if (inputSnapshot.WheelDelta != 0)
{
systemWindow.OnMouseWheel(new MouseEventArgs(MouseButtons.None, 0, position.X, position.Y, (int)inputSnapshot.WheelDelta * 120));
}
if (runNextMs <= UiThread.CurrentTimerMs)
{
UiThread.InvokePendingActions();
runNextMs = UiThread.CurrentTimerMs + 10;
}
foreach (var mouseEvent in inputSnapshot.MouseEvents)
{
MouseButtons buttons = MapMouseButtons(mouseEvent.MouseButton);
if (inputSnapshot.IsMouseDown(mouseEvent.MouseButton))
{
systemWindow.OnMouseDown(new MouseEventArgs(buttons, 1, position.X, position.Y, 0));
}
else
{
systemWindow.OnMouseUp(new MouseEventArgs(buttons, 0, position.X, position.Y, 0));
}
}
systemWindow.Width = veldridPlatformWindow.Width = window.Width;
systemWindow.Height = veldridPlatformWindow.Height = window.Height;
var graphics2D = veldridPlatformWindow.NewGraphics2D();
// We must call on draw background as this is effectively our child and that is the way it is done in GuiWidget.
// Parents call child OnDrawBackground before they call OnDraw
systemWindow.OnDrawBackground(graphics2D);
systemWindow.OnDraw(graphics2D);
_graphicsDevice.SwapBuffers();
// Copy to screen/backbuffer
//window.PumpEvents();
}
// MyOpenGLView.RootGLView.ShowSystemWindow(systemWindow);
veldridGl.DisposeResources();
ShaderData.Instance.DisposeResources();
}
MouseButtons MapMouseButtons(MouseButton mouseButton)
{
switch (mouseButton)
{
case MouseButton.Left:
return(MouseButtons.Left);
case MouseButton.Middle:
break;
case MouseButton.Right:
break;
case MouseButton.Button1:
break;
case MouseButton.Button2:
break;
case MouseButton.Button3:
break;
case MouseButton.Button4:
break;
case MouseButton.Button5:
break;
case MouseButton.Button6:
break;
case MouseButton.Button7:
break;
case MouseButton.Button8:
break;
case MouseButton.Button9:
break;
case MouseButton.LastButton:
break;
}
return(MouseButtons.None);
}
}