private void UpdateImGuiInput(InputSnapshot snapshot)
{
ImGuiIOPtr io = ImGui.GetIO();
Vector2 mousePosition = snapshot.MousePosition;
// Determine if any of the mouse buttons were pressed during this snapshot period, even if they are no longer held.
bool leftPressed = false;
bool middlePressed = false;
bool rightPressed = false;
foreach (MouseEvent me in snapshot.MouseEvents)
{
if (me.Down)
{
switch (me.MouseButton)
{
case MouseButton.Left:
leftPressed = true;
break;
case MouseButton.Middle:
middlePressed = true;
break;
case MouseButton.Right:
rightPressed = true;
break;
}
}
}
io.MouseDown[0] = leftPressed || snapshot.IsMouseDown(MouseButton.Left);
io.MouseDown[1] = middlePressed || snapshot.IsMouseDown(MouseButton.Middle);
io.MouseDown[2] = rightPressed || snapshot.IsMouseDown(MouseButton.Right);
if (_pSdlGetGlobalMouseState == null)
{
_pSdlGetGlobalMouseState = Sdl2Native.LoadFunction <SdlGetGlobalMouseStateT>("SDL_GetGlobalMouseState");
}
int x, y;
unsafe
{
uint buttons = _pSdlGetGlobalMouseState(&x, &y);
io.MouseDown[0] = (buttons & 0b0001) != 0;
io.MouseDown[1] = (buttons & 0b0100) != 0;
io.MouseDown[2] = (buttons & 0b0010) != 0;
}
io.MousePos = new Vector2(x, y);
io.MouseWheel = snapshot.WheelDelta;
IReadOnlyList <char> keyCharPresses = snapshot.KeyCharPresses;
for (int i = 0; i < keyCharPresses.Count; i++)
{
char c = keyCharPresses[i];
io.AddInputCharacter(c);
}
IReadOnlyList <KeyEvent> keyEvents = snapshot.KeyEvents;
for (int i = 0; i < keyEvents.Count; i++)
{
KeyEvent keyEvent = keyEvents[i];
io.KeysDown[(int)keyEvent.Key] = keyEvent.Down;
if (keyEvent.Key == Key.ControlLeft)
{
_controlDown = keyEvent.Down;
}
if (keyEvent.Key == Key.ShiftLeft)
{
_shiftDown = keyEvent.Down;
}
if (keyEvent.Key == Key.AltLeft)
{
_altDown = keyEvent.Down;
}
if (keyEvent.Key == Key.WinLeft)
{
_winKeyDown = keyEvent.Down;
}
}
io.KeyCtrl = _controlDown;
io.KeyAlt = _altDown;
io.KeyShift = _shiftDown;
io.KeySuper = _winKeyDown;
ImVector <ImGuiViewportPtr> viewports = ImGui.GetPlatformIO().Viewports;
for (int i = 1; i < viewports.Size; i++)
{
ImGuiViewportPtr v = viewports[i];
VeldridImGuiWindow window = ((VeldridImGuiWindow)GCHandle.FromIntPtr(v.PlatformUserData).Target);
window.Update();
}
}
