void OnScrollEvent(object o, Gtk.ScrollEventArgs args)
{
var evnt = args.Event;
double step = 1;
var delta = new Vector();
if (evnt.Direction == ScrollDirection.Down)
{
delta = new Vector(0, -step);
}
else if (evnt.Direction == ScrollDirection.Up)
{
delta = new Vector(0, step);
}
else if (evnt.Direction == ScrollDirection.Right)
{
delta = new Vector(-step, 0);
}
if (evnt.Direction == ScrollDirection.Left)
{
delta = new Vector(step, 0);
}
var e = new RawMouseWheelEventArgs(GtkMouseDevice.Instance, evnt.Time, _inputRoot, new Point(evnt.X, evnt.Y), delta, GetModifierKeys(evnt.State));
Input(e);
}
protected override bool OnScrollEvent(EventScroll evnt)
{
double step = 1;
var delta = new Vector();
if (evnt.Direction == ScrollDirection.Down)
{
delta = new Vector(0, -step);
}
else if (evnt.Direction == ScrollDirection.Up)
{
delta = new Vector(0, step);
}
else if (evnt.Direction == ScrollDirection.Right)
{
delta = new Vector(-step, 0);
}
if (evnt.Direction == ScrollDirection.Left)
{
delta = new Vector(step, 0);
}
var e = new RawMouseWheelEventArgs(GtkMouseDevice.Instance, evnt.Time, _inputRoot, new Point(evnt.X, evnt.Y), delta, GetModifierKeys(evnt.State));
Input(e);
return(base.OnScrollEvent(evnt));
}
unsafe private static bool OnScroll(IntPtr gtkWidget, IntPtr ev, IntPtr userData)
{
var impl = GetImplementationFromEvent(ev);
if (impl == null)
{
return(false);
}
var evnt = (GdkEventScroll *)ev;
//Ignore duplicates
if (impl.FilterScroll(evnt->time, evnt->direction))
{
return(true);
}
var delta = new Vector();
const double step = (double)1;
if (evnt->direction == GdkScrollDirection.Down)
{
delta = new Vector(0, -step);
}
else if (evnt->direction == GdkScrollDirection.Up)
{
delta = new Vector(0, step);
}
else if (evnt->direction == GdkScrollDirection.Right)
{
delta = new Vector(-step, 0);
}
else if (evnt->direction == GdkScrollDirection.Left)
{
delta = new Vector(step, 0);
}
else if (evnt->direction == GdkScrollDirection.Smooth)
{
delta = new Vector(-evnt->delta_x, -evnt->delta_y);
}
var e = new RawMouseWheelEventArgs(Gtk3Platform.Mouse, evnt->time,
impl.GetInputRoot(),
new Point(evnt->x, evnt->y), delta, GetModifierKeys(evnt->state));
impl.OnInput(e);
return(true);
}
private unsafe bool OnScroll(IntPtr w, IntPtr ev, IntPtr userdata)
{
var evnt = (GdkEventScroll *)ev;
//Ignore duplicates
if (evnt->time - _lastSmoothScrollEvent < 10 && evnt->direction != GdkScrollDirection.Smooth)
{
return(true);
}
var delta = new Vector();
const double step = (double)1;
if (evnt->direction == GdkScrollDirection.Down)
{
delta = new Vector(0, -step);
}
else if (evnt->direction == GdkScrollDirection.Up)
{
delta = new Vector(0, step);
}
else if (evnt->direction == GdkScrollDirection.Right)
{
delta = new Vector(-step, 0);
}
else if (evnt->direction == GdkScrollDirection.Left)
{
delta = new Vector(step, 0);
}
else if (evnt->direction == GdkScrollDirection.Smooth)
{
delta = new Vector(-evnt->delta_x, -evnt->delta_y);
_lastSmoothScrollEvent = evnt->time;
}
var e = new RawMouseWheelEventArgs(Gtk3Platform.Mouse, evnt->time, _inputRoot,
new Point(evnt->x, evnt->y), delta, GetModifierKeys(evnt->state));
Input(e);
return(true);
}
protected virtual IntPtr WndProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam)
{
bool unicode = UnmanagedMethods.IsWindowUnicode(hWnd);
const double wheelDelta = 120.0;
uint timestamp = unchecked ((uint)UnmanagedMethods.GetMessageTime());
RawInputEventArgs e = null;
WindowsMouseDevice.Instance.CurrentWindow = this;
switch ((UnmanagedMethods.WindowsMessage)msg)
{
case UnmanagedMethods.WindowsMessage.WM_ACTIVATE:
var wa = (UnmanagedMethods.WindowActivate)(ToInt32(wParam) & 0xffff);
switch (wa)
{
case UnmanagedMethods.WindowActivate.WA_ACTIVE:
case UnmanagedMethods.WindowActivate.WA_CLICKACTIVE:
Activated?.Invoke();
break;
case UnmanagedMethods.WindowActivate.WA_INACTIVE:
Deactivated?.Invoke();
break;
}
return(IntPtr.Zero);
case WindowsMessage.WM_NCCALCSIZE:
if (ToInt32(wParam) == 1 && !_decorated)
{
return(IntPtr.Zero);
}
break;
case UnmanagedMethods.WindowsMessage.WM_CLOSE:
bool?preventClosing = Closing?.Invoke();
if (preventClosing == true)
{
return(IntPtr.Zero);
}
break;
case UnmanagedMethods.WindowsMessage.WM_DESTROY:
//Window doesn't exist anymore
_hwnd = IntPtr.Zero;
//Remove root reference to this class, so unmanaged delegate can be collected
s_instances.Remove(this);
Closed?.Invoke();
if (_parent != null)
{
_parent._disabledBy.Remove(this);
_parent.UpdateEnabled();
}
//Free other resources
Dispose();
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_DPICHANGED:
var dpi = ToInt32(wParam) & 0xffff;
var newDisplayRect = Marshal.PtrToStructure <UnmanagedMethods.RECT>(lParam);
_scaling = dpi / 96.0;
ScalingChanged?.Invoke(_scaling);
SetWindowPos(hWnd,
IntPtr.Zero,
newDisplayRect.left,
newDisplayRect.top,
newDisplayRect.right - newDisplayRect.left,
newDisplayRect.bottom - newDisplayRect.top,
SetWindowPosFlags.SWP_NOZORDER | SetWindowPosFlags.SWP_NOACTIVATE);
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_KEYDOWN:
case UnmanagedMethods.WindowsMessage.WM_SYSKEYDOWN:
e = new RawKeyEventArgs(
WindowsKeyboardDevice.Instance,
timestamp,
RawKeyEventType.KeyDown,
KeyInterop.KeyFromVirtualKey(ToInt32(wParam)), WindowsKeyboardDevice.Instance.Modifiers);
break;
case UnmanagedMethods.WindowsMessage.WM_KEYUP:
case UnmanagedMethods.WindowsMessage.WM_SYSKEYUP:
e = new RawKeyEventArgs(
WindowsKeyboardDevice.Instance,
timestamp,
RawKeyEventType.KeyUp,
KeyInterop.KeyFromVirtualKey(ToInt32(wParam)), WindowsKeyboardDevice.Instance.Modifiers);
break;
case UnmanagedMethods.WindowsMessage.WM_CHAR:
// Ignore control chars
if (ToInt32(wParam) >= 32)
{
e = new RawTextInputEventArgs(WindowsKeyboardDevice.Instance, timestamp,
new string((char)ToInt32(wParam), 1));
}
break;
case UnmanagedMethods.WindowsMessage.WM_LBUTTONDOWN:
case UnmanagedMethods.WindowsMessage.WM_RBUTTONDOWN:
case UnmanagedMethods.WindowsMessage.WM_MBUTTONDOWN:
if (ShouldIgnoreTouchEmulatedMessage())
{
break;
}
e = new RawPointerEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
msg == (int)UnmanagedMethods.WindowsMessage.WM_LBUTTONDOWN
? RawPointerEventType.LeftButtonDown
: msg == (int)UnmanagedMethods.WindowsMessage.WM_RBUTTONDOWN
? RawPointerEventType.RightButtonDown
: RawPointerEventType.MiddleButtonDown,
DipFromLParam(lParam), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_LBUTTONUP:
case UnmanagedMethods.WindowsMessage.WM_RBUTTONUP:
case UnmanagedMethods.WindowsMessage.WM_MBUTTONUP:
if (ShouldIgnoreTouchEmulatedMessage())
{
break;
}
e = new RawPointerEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
msg == (int)UnmanagedMethods.WindowsMessage.WM_LBUTTONUP
? RawPointerEventType.LeftButtonUp
: msg == (int)UnmanagedMethods.WindowsMessage.WM_RBUTTONUP
? RawPointerEventType.RightButtonUp
: RawPointerEventType.MiddleButtonUp,
DipFromLParam(lParam), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSEMOVE:
if (ShouldIgnoreTouchEmulatedMessage())
{
break;
}
if (!_trackingMouse)
{
var tm = new UnmanagedMethods.TRACKMOUSEEVENT
{
cbSize = Marshal.SizeOf <UnmanagedMethods.TRACKMOUSEEVENT>(),
dwFlags = 2,
hwndTrack = _hwnd,
dwHoverTime = 0,
};
UnmanagedMethods.TrackMouseEvent(ref tm);
}
e = new RawPointerEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
RawPointerEventType.Move,
DipFromLParam(lParam), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSEWHEEL:
e = new RawMouseWheelEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
PointToClient(PointFromLParam(lParam)),
new Vector(0, (ToInt32(wParam) >> 16) / wheelDelta), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSEHWHEEL:
e = new RawMouseWheelEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
PointToClient(PointFromLParam(lParam)),
new Vector(-(ToInt32(wParam) >> 16) / wheelDelta, 0), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSELEAVE:
_trackingMouse = false;
e = new RawPointerEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
RawPointerEventType.LeaveWindow,
new Point(), WindowsKeyboardDevice.Instance.Modifiers);
break;
case UnmanagedMethods.WindowsMessage.WM_NCLBUTTONDOWN:
case UnmanagedMethods.WindowsMessage.WM_NCRBUTTONDOWN:
case UnmanagedMethods.WindowsMessage.WM_NCMBUTTONDOWN:
e = new RawPointerEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
msg == (int)UnmanagedMethods.WindowsMessage.WM_NCLBUTTONDOWN
? RawPointerEventType.NonClientLeftButtonDown
: msg == (int)UnmanagedMethods.WindowsMessage.WM_NCRBUTTONDOWN
? RawPointerEventType.RightButtonDown
: RawPointerEventType.MiddleButtonDown,
new Point(0, 0), GetMouseModifiers(wParam));
break;
case WindowsMessage.WM_TOUCH:
var touchInputs = new TOUCHINPUT[wParam.ToInt32()];
if (GetTouchInputInfo(lParam, (uint)wParam.ToInt32(), touchInputs, Marshal.SizeOf <TOUCHINPUT>()))
{
foreach (var touchInput in touchInputs)
{
var pt = new POINT {
X = touchInput.X / 100, Y = touchInput.Y / 100
};
UnmanagedMethods.ScreenToClient(_hwnd, ref pt);
Input?.Invoke(new RawTouchEventArgs(_touchDevice, touchInput.Time,
_owner,
touchInput.Flags.HasFlag(TouchInputFlags.TOUCHEVENTF_UP) ?
RawPointerEventType.TouchEnd :
touchInput.Flags.HasFlag(TouchInputFlags.TOUCHEVENTF_DOWN) ?
RawPointerEventType.TouchBegin :
RawPointerEventType.TouchUpdate,
new Point(pt.X, pt.Y),
WindowsKeyboardDevice.Instance.Modifiers,
touchInput.Id));
}
CloseTouchInputHandle(lParam);
return(IntPtr.Zero);
}
break;
case WindowsMessage.WM_NCPAINT:
if (!_decorated)
{
return(IntPtr.Zero);
}
break;
case WindowsMessage.WM_NCACTIVATE:
if (!_decorated)
{
return(new IntPtr(1));
}
break;
case UnmanagedMethods.WindowsMessage.WM_PAINT:
UnmanagedMethods.PAINTSTRUCT ps;
if (UnmanagedMethods.BeginPaint(_hwnd, out ps) != IntPtr.Zero)
{
var f = Scaling;
var r = ps.rcPaint;
Paint?.Invoke(new Rect(r.left / f, r.top / f, (r.right - r.left) / f, (r.bottom - r.top) / f));
UnmanagedMethods.EndPaint(_hwnd, ref ps);
}
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_SIZE:
var size = (UnmanagedMethods.SizeCommand)wParam;
if (Resized != null &&
(size == UnmanagedMethods.SizeCommand.Restored ||
size == UnmanagedMethods.SizeCommand.Maximized))
{
var clientSize = new Size(ToInt32(lParam) & 0xffff, ToInt32(lParam) >> 16);
Resized(clientSize / Scaling);
}
var windowState = size == SizeCommand.Maximized ? WindowState.Maximized
: (size == SizeCommand.Minimized ? WindowState.Minimized : WindowState.Normal);
if (windowState != _lastWindowState)
{
_lastWindowState = windowState;
WindowStateChanged?.Invoke(windowState);
}
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_MOVE:
PositionChanged?.Invoke(new PixelPoint((short)(ToInt32(lParam) & 0xffff), (short)(ToInt32(lParam) >> 16)));
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_GETMINMAXINFO:
MINMAXINFO mmi = Marshal.PtrToStructure <UnmanagedMethods.MINMAXINFO>(lParam);
if (_minSize.Width > 0)
{
mmi.ptMinTrackSize.X = (int)((_minSize.Width * Scaling) + BorderThickness.Left + BorderThickness.Right);
}
if (_minSize.Height > 0)
{
mmi.ptMinTrackSize.Y = (int)((_minSize.Height * Scaling) + BorderThickness.Top + BorderThickness.Bottom);
}
if (!Double.IsInfinity(_maxSize.Width) && _maxSize.Width > 0)
{
mmi.ptMaxTrackSize.X = (int)((_maxSize.Width * Scaling) + BorderThickness.Left + BorderThickness.Right);
}
if (!Double.IsInfinity(_maxSize.Height) && _maxSize.Height > 0)
{
mmi.ptMaxTrackSize.Y = (int)((_maxSize.Height * Scaling) + BorderThickness.Top + BorderThickness.Bottom);
}
Marshal.StructureToPtr(mmi, lParam, true);
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_DISPLAYCHANGE:
(Screen as ScreenImpl)?.InvalidateScreensCache();
return(IntPtr.Zero);
}
#if USE_MANAGED_DRAG
if (_managedDrag.PreprocessInputEvent(ref e))
{
return(UnmanagedMethods.DefWindowProc(hWnd, msg, wParam, lParam));
}
#endif
if (e != null && Input != null)
{
Input(e);
if (e.Handled)
{
return(IntPtr.Zero);
}
}
return(UnmanagedMethods.DefWindowProc(hWnd, msg, wParam, lParam));
}
protected virtual IntPtr WndProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam)
{
bool unicode = UnmanagedMethods.IsWindowUnicode(hWnd);
const double wheelDelta = 120.0;
uint timestamp = unchecked ((uint)UnmanagedMethods.GetMessageTime());
RawInputEventArgs e = null;
WindowsMouseDevice.Instance.CurrentWindow = this;
switch ((UnmanagedMethods.WindowsMessage)msg)
{
case UnmanagedMethods.WindowsMessage.WM_ACTIVATE:
var wa = (UnmanagedMethods.WindowActivate)((int)wParam & 0xffff);
switch (wa)
{
case UnmanagedMethods.WindowActivate.WA_ACTIVE:
case UnmanagedMethods.WindowActivate.WA_CLICKACTIVE:
_isActive = true;
Activated?.Invoke();
break;
case UnmanagedMethods.WindowActivate.WA_INACTIVE:
_isActive = false;
Deactivated?.Invoke();
break;
}
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_DESTROY:
if (Closed != null)
{
UnmanagedMethods.UnregisterClass(_className, Marshal.GetHINSTANCE(GetType().Module));
Closed();
}
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_DPICHANGED:
var dpi = (int)wParam & 0xffff;
_scaling = dpi / 96.0;
ScalingChanged?.Invoke(_scaling);
break;
case UnmanagedMethods.WindowsMessage.WM_KEYDOWN:
case UnmanagedMethods.WindowsMessage.WM_SYSKEYDOWN:
e = new RawKeyEventArgs(
WindowsKeyboardDevice.Instance,
timestamp,
RawKeyEventType.KeyDown,
KeyInterop.KeyFromVirtualKey((int)wParam), WindowsKeyboardDevice.Instance.Modifiers);
break;
case UnmanagedMethods.WindowsMessage.WM_KEYUP:
case UnmanagedMethods.WindowsMessage.WM_SYSKEYUP:
e = new RawKeyEventArgs(
WindowsKeyboardDevice.Instance,
timestamp,
RawKeyEventType.KeyUp,
KeyInterop.KeyFromVirtualKey((int)wParam), WindowsKeyboardDevice.Instance.Modifiers);
break;
case UnmanagedMethods.WindowsMessage.WM_CHAR:
// Ignore control chars
if (wParam.ToInt32() >= 32)
{
e = new RawTextInputEventArgs(WindowsKeyboardDevice.Instance, timestamp,
new string((char)wParam.ToInt32(), 1));
}
break;
////case UnmanagedMethods.WindowsMessage.WM_NCLBUTTONDOWN:
////case UnmanagedMethods.WindowsMessage.WM_NCRBUTTONDOWN:
////case UnmanagedMethods.WindowsMessage.WM_NCMBUTTONDOWN:
//// e = new RawMouseEventArgs(
//// WindowsMouseDevice.Instance,
//// timestamp,
//// _owner,
//// msg == (int)UnmanagedMethods.WindowsMessage.WM_NCLBUTTONDOWN
//// ? RawMouseEventType.LeftButtonDown
//// : msg == (int)UnmanagedMethods.WindowsMessage.WM_NCRBUTTONDOWN
//// ? RawMouseEventType.RightButtonDown
//// : RawMouseEventType.MiddleButtonDown,
//// new Point(0, 0), GetMouseModifiers(wParam));
//// break;
case UnmanagedMethods.WindowsMessage.WM_LBUTTONDOWN:
case UnmanagedMethods.WindowsMessage.WM_RBUTTONDOWN:
case UnmanagedMethods.WindowsMessage.WM_MBUTTONDOWN:
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
msg == (int)UnmanagedMethods.WindowsMessage.WM_LBUTTONDOWN
? RawMouseEventType.LeftButtonDown
: msg == (int)UnmanagedMethods.WindowsMessage.WM_RBUTTONDOWN
? RawMouseEventType.RightButtonDown
: RawMouseEventType.MiddleButtonDown,
DipFromLParam(lParam), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_LBUTTONUP:
case UnmanagedMethods.WindowsMessage.WM_RBUTTONUP:
case UnmanagedMethods.WindowsMessage.WM_MBUTTONUP:
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
msg == (int)UnmanagedMethods.WindowsMessage.WM_LBUTTONUP
? RawMouseEventType.LeftButtonUp
: msg == (int)UnmanagedMethods.WindowsMessage.WM_RBUTTONUP
? RawMouseEventType.RightButtonUp
: RawMouseEventType.MiddleButtonUp,
DipFromLParam(lParam), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSEMOVE:
if (!_trackingMouse)
{
var tm = new UnmanagedMethods.TRACKMOUSEEVENT
{
cbSize = Marshal.SizeOf(typeof(UnmanagedMethods.TRACKMOUSEEVENT)),
dwFlags = 2,
hwndTrack = _hwnd,
dwHoverTime = 0,
};
UnmanagedMethods.TrackMouseEvent(ref tm);
}
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
RawMouseEventType.Move,
DipFromLParam(lParam), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSEWHEEL:
e = new RawMouseWheelEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
ScreenToClient(DipFromLParam(lParam)),
new Vector(0, ((int)wParam >> 16) / wheelDelta), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSELEAVE:
_trackingMouse = false;
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
RawMouseEventType.LeaveWindow,
new Point(), WindowsKeyboardDevice.Instance.Modifiers);
break;
case UnmanagedMethods.WindowsMessage.WM_PAINT:
if (Paint != null)
{
UnmanagedMethods.PAINTSTRUCT ps;
if (UnmanagedMethods.BeginPaint(_hwnd, out ps) != IntPtr.Zero)
{
UnmanagedMethods.RECT r;
UnmanagedMethods.GetUpdateRect(_hwnd, out r, false);
var f = Scaling;
Paint(new Rect(r.left / f, r.top / f, (r.right - r.left) / f, (r.bottom - r.top) / f));
UnmanagedMethods.EndPaint(_hwnd, ref ps);
}
}
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_SIZE:
if (Resized != null)
{
var clientSize = new Size((int)lParam & 0xffff, (int)lParam >> 16);
Resized(clientSize / Scaling);
}
return(IntPtr.Zero);
}
if (e != null && Input != null)
{
Input(e);
if (e.Handled)
{
return(IntPtr.Zero);
}
}
return(UnmanagedMethods.DefWindowProc(hWnd, msg, wParam, lParam));
}
protected virtual IntPtr WndProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam)
{
bool unicode = UnmanagedMethods.IsWindowUnicode(hWnd);
const double wheelDelta = 120.0;
uint timestamp = unchecked ((uint)UnmanagedMethods.GetMessageTime());
RawInputEventArgs e = null;
WindowsMouseDevice.Instance.CurrentWindow = this;
switch ((UnmanagedMethods.WindowsMessage)msg)
{
case UnmanagedMethods.WindowsMessage.WM_ACTIVATE:
var wa = (UnmanagedMethods.WindowActivate)(ToInt32(wParam) & 0xffff);
switch (wa)
{
case UnmanagedMethods.WindowActivate.WA_ACTIVE:
case UnmanagedMethods.WindowActivate.WA_CLICKACTIVE:
Activated?.Invoke();
break;
case UnmanagedMethods.WindowActivate.WA_INACTIVE:
Deactivated?.Invoke();
break;
}
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_DESTROY:
//Window doesn't exist anymore
_hwnd = IntPtr.Zero;
//Remove root reference to this class, so unmanaged delegate can be collected
s_instances.Remove(this);
Closed?.Invoke();
//Free other resources
Dispose();
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_DPICHANGED:
var dpi = ToInt32(wParam) & 0xffff;
var newDisplayRect = (UnmanagedMethods.RECT)Marshal.PtrToStructure(lParam, typeof(UnmanagedMethods.RECT));
Position = new Point(newDisplayRect.left, newDisplayRect.top);
_scaling = dpi / 96.0;
ScalingChanged?.Invoke(_scaling);
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_KEYDOWN:
case UnmanagedMethods.WindowsMessage.WM_SYSKEYDOWN:
e = new RawKeyEventArgs(
WindowsKeyboardDevice.Instance,
timestamp,
RawKeyEventType.KeyDown,
KeyInterop.KeyFromVirtualKey(ToInt32(wParam)), WindowsKeyboardDevice.Instance.Modifiers);
break;
case UnmanagedMethods.WindowsMessage.WM_KEYUP:
case UnmanagedMethods.WindowsMessage.WM_SYSKEYUP:
e = new RawKeyEventArgs(
WindowsKeyboardDevice.Instance,
timestamp,
RawKeyEventType.KeyUp,
KeyInterop.KeyFromVirtualKey(ToInt32(wParam)), WindowsKeyboardDevice.Instance.Modifiers);
break;
case UnmanagedMethods.WindowsMessage.WM_CHAR:
// Ignore control chars
if (ToInt32(wParam) >= 32)
{
e = new RawTextInputEventArgs(WindowsKeyboardDevice.Instance, timestamp,
new string((char)ToInt32(wParam), 1));
}
break;
case UnmanagedMethods.WindowsMessage.WM_LBUTTONDOWN:
case UnmanagedMethods.WindowsMessage.WM_RBUTTONDOWN:
case UnmanagedMethods.WindowsMessage.WM_MBUTTONDOWN:
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
msg == (int)UnmanagedMethods.WindowsMessage.WM_LBUTTONDOWN
? RawMouseEventType.LeftButtonDown
: msg == (int)UnmanagedMethods.WindowsMessage.WM_RBUTTONDOWN
? RawMouseEventType.RightButtonDown
: RawMouseEventType.MiddleButtonDown,
DipFromLParam(lParam), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_LBUTTONUP:
case UnmanagedMethods.WindowsMessage.WM_RBUTTONUP:
case UnmanagedMethods.WindowsMessage.WM_MBUTTONUP:
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
msg == (int)UnmanagedMethods.WindowsMessage.WM_LBUTTONUP
? RawMouseEventType.LeftButtonUp
: msg == (int)UnmanagedMethods.WindowsMessage.WM_RBUTTONUP
? RawMouseEventType.RightButtonUp
: RawMouseEventType.MiddleButtonUp,
DipFromLParam(lParam), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSEMOVE:
if (!_trackingMouse)
{
var tm = new UnmanagedMethods.TRACKMOUSEEVENT
{
cbSize = Marshal.SizeOf(typeof(UnmanagedMethods.TRACKMOUSEEVENT)),
dwFlags = 2,
hwndTrack = _hwnd,
dwHoverTime = 0,
};
UnmanagedMethods.TrackMouseEvent(ref tm);
}
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
RawMouseEventType.Move,
DipFromLParam(lParam), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSEWHEEL:
e = new RawMouseWheelEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
ScreenToClient(DipFromLParam(lParam)),
new Vector(0, (ToInt32(wParam) >> 16) / wheelDelta), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSEHWHEEL:
e = new RawMouseWheelEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
ScreenToClient(DipFromLParam(lParam)),
new Vector(-(ToInt32(wParam) >> 16) / wheelDelta, 0), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSELEAVE:
_trackingMouse = false;
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
RawMouseEventType.LeaveWindow,
new Point(), WindowsKeyboardDevice.Instance.Modifiers);
break;
case UnmanagedMethods.WindowsMessage.WM_NCLBUTTONDOWN:
case UnmanagedMethods.WindowsMessage.WM_NCRBUTTONDOWN:
case UnmanagedMethods.WindowsMessage.WM_NCMBUTTONDOWN:
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
_owner,
msg == (int)UnmanagedMethods.WindowsMessage.WM_NCLBUTTONDOWN
? RawMouseEventType.NonClientLeftButtonDown
: msg == (int)UnmanagedMethods.WindowsMessage.WM_NCRBUTTONDOWN
? RawMouseEventType.RightButtonDown
: RawMouseEventType.MiddleButtonDown,
new Point(0, 0), GetMouseModifiers(wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_PAINT:
UnmanagedMethods.PAINTSTRUCT ps;
if (UnmanagedMethods.BeginPaint(_hwnd, out ps) != IntPtr.Zero)
{
var f = Scaling;
var r = ps.rcPaint;
Paint?.Invoke(new Rect(r.left / f, r.top / f, (r.right - r.left) / f, (r.bottom - r.top) / f));
UnmanagedMethods.EndPaint(_hwnd, ref ps);
}
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_SIZE:
if (Resized != null &&
(wParam == (IntPtr)UnmanagedMethods.SizeCommand.Restored ||
wParam == (IntPtr)UnmanagedMethods.SizeCommand.Maximized))
{
var clientSize = new Size(ToInt32(lParam) & 0xffff, ToInt32(lParam) >> 16);
Resized(clientSize / Scaling);
}
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_MOVE:
PositionChanged?.Invoke(new Point((short)(ToInt32(lParam) & 0xffff), (short)(ToInt32(lParam) >> 16)));
return(IntPtr.Zero);
}
if (e != null && Input != null)
{
Input(e);
if (e.Handled)
{
return(IntPtr.Zero);
}
}
return(UnmanagedMethods.DefWindowProc(hWnd, msg, wParam, lParam));
}
private IntPtr WndProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam)
{
const double WheelDelta = 120.0;
uint timestamp = unchecked ((uint)UnmanagedMethods.GetMessageTime());
RawInputEventArgs e = null;
WindowsMouseDevice.Instance.CurrentWindow = this;
switch ((UnmanagedMethods.WindowsMessage)msg)
{
case UnmanagedMethods.WindowsMessage.WM_ACTIVATE:
this.Activated();
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_DESTROY:
this.Closed();
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_KEYDOWN:
WindowsKeyboardDevice.Instance.UpdateKeyStates();
e = new RawKeyEventArgs(
WindowsKeyboardDevice.Instance,
timestamp,
RawKeyEventType.KeyDown,
KeyInterop.KeyFromVirtualKey((int)wParam),
WindowsKeyboardDevice.Instance.StringFromVirtualKey((uint)wParam));
break;
case UnmanagedMethods.WindowsMessage.WM_LBUTTONDOWN:
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
this.owner,
RawMouseEventType.LeftButtonDown,
new Point((uint)lParam & 0xffff, (uint)lParam >> 16));
break;
case UnmanagedMethods.WindowsMessage.WM_LBUTTONUP:
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
this.owner,
RawMouseEventType.LeftButtonUp,
new Point((uint)lParam & 0xffff, (uint)lParam >> 16));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSEMOVE:
if (!this.trackingMouse)
{
var tm = new UnmanagedMethods.TRACKMOUSEEVENT
{
cbSize = Marshal.SizeOf(typeof(UnmanagedMethods.TRACKMOUSEEVENT)),
dwFlags = 2,
hwndTrack = this.hwnd,
dwHoverTime = 0,
};
UnmanagedMethods.TrackMouseEvent(ref tm);
}
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
this.owner,
RawMouseEventType.Move,
new Point((uint)lParam & 0xffff, (uint)lParam >> 16));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSEWHEEL:
e = new RawMouseWheelEventArgs(
WindowsMouseDevice.Instance,
timestamp,
this.owner,
this.ScreenToClient((uint)lParam & 0xffff, (uint)lParam >> 16),
new Vector(0, ((int)wParam >> 16) / WheelDelta));
break;
case UnmanagedMethods.WindowsMessage.WM_MOUSELEAVE:
this.trackingMouse = false;
e = new RawMouseEventArgs(
WindowsMouseDevice.Instance,
timestamp,
this.owner,
RawMouseEventType.LeaveWindow,
new Point());
break;
case UnmanagedMethods.WindowsMessage.WM_PAINT:
UnmanagedMethods.PAINTSTRUCT ps;
if (UnmanagedMethods.BeginPaint(this.hwnd, out ps) != IntPtr.Zero)
{
UnmanagedMethods.RECT r;
UnmanagedMethods.GetUpdateRect(this.hwnd, out r, false);
this.Paint(new Rect(r.left, r.top, r.right - r.left, r.bottom - r.top), this.Handle);
UnmanagedMethods.EndPaint(this.hwnd, ref ps);
}
return(IntPtr.Zero);
case UnmanagedMethods.WindowsMessage.WM_SIZE:
if (this.Resized != null)
{
this.Resized(new Size((int)lParam & 0xffff, (int)lParam >> 16));
}
return(IntPtr.Zero);
}
if (e != null && this.Input != null)
{
this.Input(e);
return(IntPtr.Zero);
}
return(UnmanagedMethods.DefWindowProc(hWnd, msg, wParam, lParam));
}
public bool?DispatchTouchEvent(MotionEvent e, out bool callBase)
{
if (!HandleEvents)
{
callBase = true;
return(null);
}
RawMouseEventType?mouseEventType = null;
var eventTime = DateTime.Now;
//Basic touch support
switch (e.Action)
{
case MotionEventActions.Move:
//may be bot flood the evnt system with too many event especially on not so powerfull mobile devices
if ((eventTime - _lastTouchMoveEventTime).TotalMilliseconds > 10)
{
mouseEventType = RawMouseEventType.Move;
}
break;
case MotionEventActions.Down:
mouseEventType = RawMouseEventType.LeftButtonDown;
break;
case MotionEventActions.Up:
mouseEventType = RawMouseEventType.LeftButtonUp;
break;
}
if (mouseEventType != null)
{
//if point is in view otherwise it's possible avalonia not to find the proper window to dispatch the event
_point = _getPointFunc(e);
double x = _view.GetX();
double y = _view.GetY();
double r = x + _view.Width;
double b = y + _view.Height;
if (x <= _point.X && r >= _point.X && y <= _point.Y && b >= _point.Y)
{
var inputRoot = _getInputRoot();
var mouseDevice = MouseDevice.Instance;
//in order the controls to work in a predictable way
//we need to generate mouse move before first mouse down event
//as this is the way buttons are working every time
//otherwise there is a problem sometimes
if (mouseEventType == RawMouseEventType.LeftButtonDown)
{
var me = new RawMouseEventArgs(mouseDevice, (uint)eventTime.Ticks, inputRoot,
RawMouseEventType.Move, _point, InputModifiers.None);
_view.Input(me);
}
var mouseEvent = new RawMouseEventArgs(mouseDevice, (uint)eventTime.Ticks, inputRoot,
mouseEventType.Value, _point, InputModifiers.LeftMouseButton);
_view.Input(mouseEvent);
if (e.Action == MotionEventActions.Move && mouseDevice.Captured == null)
{
if (_lastTouchMovePoint != null)
{
//raise mouse scroll event so the scrollers
//are moving with the cursor
double vectorX = _point.X - _lastTouchMovePoint.Value.X;
double vectorY = _point.Y - _lastTouchMovePoint.Value.Y;
//based on test correction of 0.02 is working perfect
double correction = 0.02;
var ps = AndroidPlatform.Instance.LayoutScalingFactor;
var mouseWheelEvent = new RawMouseWheelEventArgs(
mouseDevice,
(uint)eventTime.Ticks,
inputRoot,
_point,
new Vector(vectorX * correction / ps, vectorY * correction / ps), InputModifiers.LeftMouseButton);
_view.Input(mouseWheelEvent);
}
_lastTouchMovePoint = _point;
_lastTouchMoveEventTime = eventTime;
}
else if (e.Action == MotionEventActions.Down)
{
_lastTouchMovePoint = _point;
}
else
{
_lastTouchMovePoint = null;
}
}
}
callBase = true;
//if return false events for move and up are not received!!!
return(e.Action != MotionEventActions.Up);
}
