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using System;
using System.Linq;
using System.Threading;
using SharpDX;
using SharpDX.Direct2D1;
using SharpDX.DirectWrite;
using SharpDX.DXGI;
using SharpDX.Mathematics.Interop;
using AlphaMode = SharpDX.Direct2D1.AlphaMode;
using Color = System.Drawing.Color;
namespace WarframeClock
{
class ClockOverlay : IDisposable
{
private readonly string targetProcessName;
private Clock clock;
private IntPtr targetWindowHandle;
private IntPtr handle;
private bool isVisible;
private bool isTopMost;
private Native.Rect parentBounds;
private WindowRenderTarget device;
private SharpDX.Direct2D1.Factory _factory;
private SharpDX.DirectWrite.Factory _fontFactory;
private static readonly Color gdiTransparent = Color.Transparent;
private readonly RawColor4 transparent = new RawColor4(gdiTransparent.R, gdiTransparent.G, gdiTransparent.B,
gdiTransparent.A);
private TextFormat textFont;
private SolidColorBrush textBrush;
public ClockOverlay(Clock clock, string targetProcessName)
{
this.clock = clock;
this.targetProcessName = targetProcessName;
SetupOverlayWindow();
}
~ClockOverlay()
{
Dispose();
}
private void SetupOverlayWindow()
{
isVisible = false;
isTopMost = false;
parentBounds = new Native.Rect()
{
Top = 0,
Left = 0,
Right = Native.GetSystemMetrics(0),
Bottom = Native.GetSystemMetrics(1),
};
handle = Native.CreateWindowEx(
0x8000000 /* WS_EX_NOACTIVATE */
| 0x80000 /* WS_EX_LAYERED */
| 0x80 /* WS_EX_TOOLWINDOW */
| 0x20 /* WS_EX_TRANSPARENT */,
"Static",
"",
0x8000000 /* WS_DISABLED */
| 0x80000000 /* WS_POPUP */,
parentBounds.Left,
parentBounds.Top,
parentBounds.Right - parentBounds.Left,
parentBounds.Bottom - parentBounds.Top,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero);
if (handle == IntPtr.Zero)
{
throw new Exception("Could not create OverlayWindow");
}
Native.SetLayeredWindowAttributes(handle, 0, 255, 0x00000002 /* LWA_ALPHA */);
// Setup Direct*
_factory = new SharpDX.Direct2D1.Factory();
_fontFactory = new SharpDX.DirectWrite.Factory();
var targetProperties = new HwndRenderTargetProperties
{
Hwnd = handle,
PixelSize = new Size2(
parentBounds.Right - parentBounds.Left,
parentBounds.Bottom - parentBounds.Top),
PresentOptions = PresentOptions.None
};
var prop = new RenderTargetProperties(RenderTargetType.Hardware,
new PixelFormat(Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied), 0, 0, RenderTargetUsage.None,
FeatureLevel.Level_DEFAULT);
device = new WindowRenderTarget(_factory, prop, targetProperties);
textBrush = new SolidColorBrush(device, new RawColor4(0xff, 0xff, 0xff, 0x7f));
textFont = new TextFormat(_fontFactory, "Segoe UI", FontWeight.Normal, FontStyle.Normal, 12);
}
public void Dispose()
{
textBrush.Dispose();
textFont.Dispose();
_fontFactory.Dispose();
_factory.Dispose();
device.Dispose();
Native.DestroyWindow(handle);
}
public void Start()
{
while (true)
{
Update();
Thread.Sleep(100);
}
}
private void Update()
{
GetTargetWindow();
if (targetWindowHandle == IntPtr.Zero)
{
if (isVisible)
{
isVisible = false;
Native.ShowWindow(handle, 0);
}
return;
}
// Set top-most flag if the target window is foreground. Move to
// behind the current foreground window otherwise.
var currentActiveWindow = Native.GetForegroundWindow();
if (currentActiveWindow == targetWindowHandle != isTopMost || !isVisible)
{
isTopMost = currentActiveWindow == targetWindowHandle;
var after = isTopMost ? (IntPtr)(-1 /* HWND_TOPMOST */) : currentActiveWindow;
Console.WriteLine($"ClockOverlay: Overlay is inserted after: {after}");
Native.SetWindowPos(handle, after, 0, 0, 0, 0, 0x0001 /* SWP_NOSIZE */ | 0x0002 /* SWP_NOMOVE */);
}
if (!isVisible)
{
isVisible = true;
Native.ShowWindow(handle, 5);
}
Native.Rect newBounds;
if (Native.GetWindowRect(targetWindowHandle, out newBounds) == 0)
{
targetWindowHandle = IntPtr.Zero;
return;
}
if (parentBounds.Left != newBounds.Left || parentBounds.Right != newBounds.Right ||
parentBounds.Top != newBounds.Top || parentBounds.Bottom != newBounds.Bottom)
{
parentBounds = newBounds;
var width = parentBounds.Right - parentBounds.Left;
var height = parentBounds.Bottom - parentBounds.Top;
Native.SetWindowPos(handle, IntPtr.Zero, parentBounds.Left, parentBounds.Top, width, height,
0x0004 /* SWP_NOZORDER */);
device.Resize(new Size2(width, height));
Native.RawMargin _margin;
_margin.cxLeftWidth = parentBounds.Left;
_margin.cxRightWidth = width;
_margin.cyBottomHeight = height;
_margin.cyTopHeight = parentBounds.Top;
Native.DwmExtendFrameIntoClientArea(handle, ref _margin);
}
// Render text
device.BeginDraw();
device.Clear(transparent);
var infoText = $"{clock.CetusExpiryString()} {clock.VallisExpiryString()}";
device.DrawText(infoText, textFont,
new RawRectangleF(30, parentBounds.Bottom - parentBounds.Top - 50, float.MaxValue, float.MaxValue),
textBrush);
device.EndDraw();
}
private void GetTargetWindow()
{
if (targetWindowHandle == IntPtr.Zero || Native.IsWindow(targetWindowHandle) == 0)
{
targetWindowHandle = IntPtr.Zero;
var process = System.Diagnostics.Process.GetProcessesByName(targetProcessName).FirstOrDefault();
if (process == null)
{
return;
}
try
{
targetWindowHandle = process.MainWindowHandle;
if (targetWindowHandle != IntPtr.Zero)
{
Console.WriteLine($"ClockOverlay: Found a process with name={targetProcessName}; " +
$"MainWindowHandle={targetWindowHandle}");
}
}
catch (Exception)
{
// Ignore errors; maybe the process is just exiting. Let's retry during the next cycle.
}
}
}
}
}
|
