protected override void OnEvent(WindowMessageType msg, IntPtr wParam, IntPtr lParam)
{
base.OnEvent(msg, wParam, lParam);
// Pass all remaining windows messages to camera so it can respond to user input
this.camera?.HandleMessages(this.Handle, msg, wParam, lParam);
}
protected override void OnEvent(WindowMessageType msg, IntPtr wParam, IntPtr lParam)
{
base.OnEvent(msg, wParam, lParam);
// Pass all windows messages to camera so it can respond to user input
this.camera?.HandleMessages(this.Handle, msg, wParam, lParam);
this.lightCamera?.HandleMessages(this.Handle, msg, wParam, lParam);
switch (msg)
{
case WindowMessageType.LeftButtonDown:
case WindowMessageType.MiddleButtonDown:
case WindowMessageType.RightButtonDown:
{
bool bLeftButtonDown = ((MouseKeys)wParam & MouseKeys.LeftButton) != 0;
bool bRightButtonDown = ((MouseKeys)wParam & MouseKeys.RightButton) != 0;
bool bMiddleButtonDown = ((MouseKeys)wParam & MouseKeys.MiddleButton) != 0;
bool bOldLeftButtonDown = g_bLeftButtonDown;
bool bOldRightButtonDown = g_bRightButtonDown;
bool bOldMiddleButtonDown = g_bMiddleButtonDown;
g_bLeftButtonDown = bLeftButtonDown;
g_bMiddleButtonDown = bMiddleButtonDown;
g_bRightButtonDown = bRightButtonDown;
if (bOldLeftButtonDown && !g_bLeftButtonDown)
{
this.camera.SetEnablePositionMovement(false);
}
else if (!bOldLeftButtonDown && g_bLeftButtonDown)
{
this.camera.SetEnablePositionMovement(true);
}
if (!bOldRightButtonDown && g_bRightButtonDown)
{
this.camera.SetEnablePositionMovement(false);
}
if (bOldMiddleButtonDown && !g_bMiddleButtonDown)
{
this.lightCamera.SetEnablePositionMovement(false);
}
else if (!bOldMiddleButtonDown && g_bMiddleButtonDown)
{
this.lightCamera.SetEnablePositionMovement(true);
this.camera.SetEnablePositionMovement(false);
}
// If no mouse button is down at all, enable camera movement.
if (!g_bLeftButtonDown && !g_bRightButtonDown && !g_bMiddleButtonDown)
{
this.camera.SetEnablePositionMovement(true);
}
break;
}
}
}
protected internal virtual void OnEvent(WindowMessageType msg, IntPtr wParam, IntPtr lParam)
{
switch (msg)
{
case WindowMessageType.SetText:
this.NotifyPropertyChanged("Title");
break;
}
}
private IntPtr Callback(IntPtr hWnd, WindowMessageType msg, IntPtr wParam, IntPtr lParam)
{
switch (msg)
{
case WindowMessageType.Destroy:
NativeMethods.PostQuitMessage(0);
return(new IntPtr(1));
case WindowMessageType.KeyDown:
switch ((VirtualKey)wParam)
{
case VirtualKey.Escape:
NativeMethods.PostQuitMessage(0);
break;
}
break;
default:
return(NativeMethods.DefWindowProc(hWnd, msg, wParam, lParam));
}
return(IntPtr.Zero);
}
public override void HandleMessages(IntPtr hWnd, WindowMessageType msg, IntPtr wParam, IntPtr lParam)
{
base.HandleMessages(hWnd, msg, wParam, lParam);
// Current mouse position
int iMouseX = (short)((ulong)lParam & 0xffffU);
int iMouseY = (short)((ulong)lParam >> 16);
if (((msg == WindowMessageType.LeftButtonDown || msg == WindowMessageType.LeftButtonDoubleClick) &&
(m_nRotateModelButtonMask & SdkCameraMouseKeys.LeftButton) != 0) ||
((msg == WindowMessageType.MiddleButtonDown || msg == WindowMessageType.MiddleButtonDoubleClick) &&
(m_nRotateModelButtonMask & SdkCameraMouseKeys.MiddleButton) != 0) ||
((msg == WindowMessageType.RightButtonDown || msg == WindowMessageType.RightButtonDoubleClick) &&
(m_nRotateModelButtonMask & SdkCameraMouseKeys.RightButton) != 0))
{
m_WorldArcBall.OnBegin(iMouseX, iMouseY);
}
if (((msg == WindowMessageType.LeftButtonDown || msg == WindowMessageType.LeftButtonDoubleClick) &&
(m_nRotateCameraButtonMask & SdkCameraMouseKeys.LeftButton) != 0) ||
((msg == WindowMessageType.MiddleButtonDown || msg == WindowMessageType.MiddleButtonDoubleClick) &&
(m_nRotateCameraButtonMask & SdkCameraMouseKeys.MiddleButton) != 0) ||
((msg == WindowMessageType.RightButtonDown || msg == WindowMessageType.RightButtonDoubleClick) &&
(m_nRotateCameraButtonMask & SdkCameraMouseKeys.RightButton) != 0))
{
m_ViewArcBall.OnBegin(iMouseX, iMouseY);
}
if (msg == WindowMessageType.MouseMove)
{
m_WorldArcBall.OnMove(iMouseX, iMouseY);
m_ViewArcBall.OnMove(iMouseX, iMouseY);
}
if ((msg == WindowMessageType.LeftButtonUp && (m_nRotateModelButtonMask & SdkCameraMouseKeys.LeftButton) != 0) ||
(msg == WindowMessageType.MiddleButtonUp && (m_nRotateModelButtonMask & SdkCameraMouseKeys.MiddleButton) != 0) ||
(msg == WindowMessageType.RightButtonUp && (m_nRotateModelButtonMask & SdkCameraMouseKeys.RightButton) != 0))
{
m_WorldArcBall.OnEnd();
}
if ((msg == WindowMessageType.LeftButtonUp && (m_nRotateCameraButtonMask & SdkCameraMouseKeys.LeftButton) != 0) ||
(msg == WindowMessageType.MiddleButtonUp && (m_nRotateCameraButtonMask & SdkCameraMouseKeys.MiddleButton) != 0) ||
(msg == WindowMessageType.RightButtonUp && (m_nRotateCameraButtonMask & SdkCameraMouseKeys.RightButton) != 0))
{
m_ViewArcBall.OnEnd();
}
if (msg == WindowMessageType.CaptureChanged)
{
if (lParam != hWnd)
{
if (((m_nRotateModelButtonMask & SdkCameraMouseKeys.LeftButton) != 0) ||
((m_nRotateModelButtonMask & SdkCameraMouseKeys.MiddleButton) != 0) ||
((m_nRotateModelButtonMask & SdkCameraMouseKeys.RightButton) != 0))
{
m_WorldArcBall.OnEnd();
}
if (((m_nRotateCameraButtonMask & SdkCameraMouseKeys.LeftButton) != 0) ||
((m_nRotateCameraButtonMask & SdkCameraMouseKeys.MiddleButton) != 0) ||
((m_nRotateCameraButtonMask & SdkCameraMouseKeys.RightButton) != 0))
{
m_ViewArcBall.OnEnd();
}
}
}
if (msg == WindowMessageType.LeftButtonDown ||
msg == WindowMessageType.LeftButtonDoubleClick ||
msg == WindowMessageType.MiddleButtonDown ||
msg == WindowMessageType.MiddleButtonDoubleClick ||
msg == WindowMessageType.RightButtonDown ||
msg == WindowMessageType.RightButtonDoubleClick ||
msg == WindowMessageType.LeftButtonUp ||
msg == WindowMessageType.MiddleButtonUp ||
msg == WindowMessageType.RightButtonUp ||
msg == WindowMessageType.MouseWheel ||
msg == WindowMessageType.MouseMove)
{
m_bDragSinceLastUpdate = true;
}
}
public WindowMessage(WindowMessageType type, object data)
{
this.Type = type;
this.Data = data;
}
public static extern IntPtr SendMessage(IntPtr hWnd, [MarshalAs(UnmanagedType.U4)] WindowMessageType wMsg, bool wParam, IntPtr lParam);
protected override void OnEvent(WindowMessageType msg, IntPtr wParam, IntPtr lParam)
{
base.OnEvent(msg, wParam, lParam);
this.activeCamera?.HandleMessages(this.Handle, msg, wParam, lParam);
}
public void HandleMessages(IntPtr hWnd, WindowMessageType msg, IntPtr wParam, IntPtr lParam)
{
// Current mouse position
int iMouseX = (short)((ulong)lParam & 0xffffU);
int iMouseY = (short)((ulong)lParam >> 16);
switch (msg)
{
case WindowMessageType.LeftButtonDown:
case WindowMessageType.MiddleButtonDown:
case WindowMessageType.RightButtonDown:
{
if ((m_nRotateMask.HasFlag(SdkCameraMouseKeys.LeftButton) && msg == WindowMessageType.LeftButtonDown) ||
(m_nRotateMask.HasFlag(SdkCameraMouseKeys.MiddleButton) && msg == WindowMessageType.MiddleButtonDown) ||
(m_nRotateMask.HasFlag(SdkCameraMouseKeys.RightButton) && msg == WindowMessageType.RightButtonDown))
{
m_ArcBall.OnBegin(iMouseX, iMouseY);
NativeMethods.SetCapture(hWnd);
}
break;
}
case WindowMessageType.MouseMove:
{
if (m_ArcBall.IsBeingDragged())
{
m_ArcBall.OnMove(iMouseX, iMouseY);
UpdateLightDir();
}
break;
}
case WindowMessageType.LeftButtonUp:
case WindowMessageType.MiddleButtonUp:
case WindowMessageType.RightButtonUp:
{
if ((m_nRotateMask.HasFlag(SdkCameraMouseKeys.LeftButton) && msg == WindowMessageType.LeftButtonDown) ||
(m_nRotateMask.HasFlag(SdkCameraMouseKeys.MiddleButton) && msg == WindowMessageType.MiddleButtonDown) ||
(m_nRotateMask.HasFlag(SdkCameraMouseKeys.RightButton) && msg == WindowMessageType.RightButtonDown))
{
m_ArcBall.OnEnd();
NativeMethods.ReleaseCapture();
}
UpdateLightDir();
break;
}
case WindowMessageType.CaptureChanged:
{
if (lParam != hWnd)
{
if (m_nRotateMask.HasFlag(SdkCameraMouseKeys.LeftButton) ||
m_nRotateMask.HasFlag(SdkCameraMouseKeys.MiddleButton) ||
m_nRotateMask.HasFlag(SdkCameraMouseKeys.RightButton))
{
m_ArcBall.OnEnd();
NativeMethods.ReleaseCapture();
}
}
break;
}
}
}
/// <summary>
/// Determines whether this window message matches the specified <paramref name="type"/>.
/// </summary>
/// <param name="type">
/// Window message type to check for equality.
/// </param>
/// <returns>
/// <c>true</c> if this window message matches the specified <paramref name="type"/>; otherwise <c>false</c>.
/// </returns>
public bool Is(WindowMessageType type)
{
return(Id == type.ToInt32());
}
private IntPtr Callback(IntPtr hWnd, WindowMessageType msg, IntPtr wParam, IntPtr lParam)
{
this.window.OnEvent(msg, wParam, lParam);
switch (msg)
{
case WindowMessageType.Destroy:
this.doPostQuitMessage = true;
return(new IntPtr(1));
case WindowMessageType.GetMinMaxInfo:
Marshal.WriteInt32(lParam, 24, 150);
Marshal.WriteInt32(lParam, 28, 150);
break;
case WindowMessageType.Size:
this.window.IsMinimized = wParam.ToInt32() == 1;
break;
case WindowMessageType.WindowPositionChanged:
{
int oldWidth = this.window.Width;
int oldHeight = this.window.Height;
IntPtr rectPtr = Marshal.AllocHGlobal(16);
try
{
if (NativeMethods.GetClientRect(this.handle, rectPtr))
{
this.window.Width = Marshal.ReadInt32(rectPtr, 8);
this.window.Height = Marshal.ReadInt32(rectPtr, 12);
}
}
finally
{
Marshal.FreeHGlobal(rectPtr);
}
if (this.window.Width != oldWidth || this.window.Height != oldHeight)
{
this.doOnWindowSizeChanged = true;
}
return(NativeMethods.DefWindowProc(hWnd, msg, wParam, lParam));
}
case WindowMessageType.Activate:
this.window.IsActive = (wParam.ToInt32() & 0xFFFF) != 0;
break;
case WindowMessageType.ShowWindow:
this.window.IsActive = (wParam.ToInt32()) != 0;
break;
case WindowMessageType.MouseActivate:
case WindowMessageType.PointerActivate:
this.window.Focus();
break;
case WindowMessageType.KeyDown:
case WindowMessageType.KeyUp:
this.window.OnKeyboardEvent((VirtualKey)wParam, (int)((ulong)lParam & 0xFFFFU), ((ulong)lParam & 0x40000000U) != 0, ((ulong)lParam & 0x80000000U) == 0);
break;
default:
return(NativeMethods.DefWindowProc(hWnd, msg, wParam, lParam));
}
return(IntPtr.Zero);
}
public static extern bool PeekMessage([Out] out WindowMessage message, IntPtr handle, WindowMessageType filterMin, WindowMessageType filterMax, uint remove);
public static extern bool GetMessage([Out] out WindowMessage message, IntPtr handle, WindowMessageType filterMin, WindowMessageType filterMax);
public static extern IntPtr DefWindowProc(IntPtr hWnd, WindowMessageType msg, IntPtr wParam, IntPtr lParam);
public virtual void HandleMessages(IntPtr hWnd, WindowMessageType msg, IntPtr wParam, IntPtr lParam)
{
// Current mouse position
int iMouseX = (short)((ulong)lParam & 0xffffU);
int iMouseY = (short)((ulong)lParam >> 16);
switch (msg)
{
case WindowMessageType.ActivateApplication:
{
m_isActive = wParam.ToInt32() == 1;
break;
}
case WindowMessageType.KeyDown:
{
// Map this key to a D3DUtil_CameraKeys enum and update the
// state of m_aKeys[] by adding the KEY_WAS_DOWN_MASK|KEY_IS_DOWN_MASK mask
// only if the key is not down
SdkCameraKey mappedKey = MapKey((VirtualKey)wParam);
if (mappedKey != SdkCameraKey.Unknown)
{
if (!IsKeyDown(m_aKeys[(int)mappedKey]))
{
m_aKeys[(int)mappedKey] = SdkCameraKeyStates.WasDownMask | SdkCameraKeyStates.IsDownMask;
m_cKeysDown++;
}
}
break;
}
case WindowMessageType.KeyUp:
{
// Map this key to a D3DUtil_CameraKeys enum and update the
// state of m_aKeys[] by removing the KEY_IS_DOWN_MASK mask.
SdkCameraKey mappedKey = MapKey((VirtualKey)wParam);
if (mappedKey != SdkCameraKey.Unknown)
{
m_aKeys[(int)mappedKey] &= ~SdkCameraKeyStates.IsDownMask;
m_cKeysDown--;
}
break;
}
case WindowMessageType.RightButtonDown:
case WindowMessageType.MiddleButtonDown:
case WindowMessageType.LeftButtonDown:
case WindowMessageType.RightButtonDoubleClick:
case WindowMessageType.MiddleButtonDoubleClick:
case WindowMessageType.LeftButtonDoubleClick:
{
// Compute the drag rectangle in screen coord.
XMInt2 ptCursor = new XMInt2(iMouseX, iMouseY);
// Update member var state
if ((msg == WindowMessageType.LeftButtonDown || msg == WindowMessageType.LeftButtonDoubleClick) && NativeMethods.PtInRect(ref m_rcDrag, ptCursor))
{
m_bMouseLButtonDown = true;
m_nCurrentButtonMask |= MouseKeys.LeftButton;
}
if ((msg == WindowMessageType.MiddleButtonDown || msg == WindowMessageType.MiddleButtonDoubleClick) && NativeMethods.PtInRect(ref m_rcDrag, ptCursor))
{
m_bMouseMButtonDown = true;
m_nCurrentButtonMask |= MouseKeys.MiddleButton;
}
if ((msg == WindowMessageType.RightButtonDown || msg == WindowMessageType.RightButtonDoubleClick) && NativeMethods.PtInRect(ref m_rcDrag, ptCursor))
{
m_bMouseRButtonDown = true;
m_nCurrentButtonMask |= MouseKeys.RightButton;
}
// Capture the mouse, so if the mouse button is
// released outside the window, we'll get the WM_LBUTTONUP message
NativeMethods.SetCapture(hWnd);
NativeMethods.GetCursorPos(out m_ptLastMousePosition);
break;
}
case WindowMessageType.RightButtonUp:
case WindowMessageType.MiddleButtonUp:
case WindowMessageType.LeftButtonUp:
{
// Update member var state
if (msg == WindowMessageType.LeftButtonUp)
{
m_bMouseLButtonDown = false;
m_nCurrentButtonMask &= ~MouseKeys.LeftButton;
}
if (msg == WindowMessageType.MiddleButtonUp)
{
m_bMouseMButtonDown = false;
m_nCurrentButtonMask &= ~MouseKeys.MiddleButton;
}
if (msg == WindowMessageType.RightButtonUp)
{
m_bMouseRButtonDown = false;
m_nCurrentButtonMask &= ~MouseKeys.RightButton;
}
// Release the capture if no mouse buttons down
if (!m_bMouseLButtonDown &&
!m_bMouseRButtonDown &&
!m_bMouseMButtonDown)
{
NativeMethods.ReleaseCapture();
}
break;
}
case WindowMessageType.CaptureChanged:
{
if (lParam != hWnd)
{
if ((m_nCurrentButtonMask & MouseKeys.LeftButton) != 0 ||
(m_nCurrentButtonMask & MouseKeys.MiddleButton) != 0 ||
(m_nCurrentButtonMask & MouseKeys.RightButton) != 0)
{
m_bMouseLButtonDown = false;
m_bMouseMButtonDown = false;
m_bMouseRButtonDown = false;
m_nCurrentButtonMask &= ~MouseKeys.LeftButton;
m_nCurrentButtonMask &= ~MouseKeys.MiddleButton;
m_nCurrentButtonMask &= ~MouseKeys.RightButton;
NativeMethods.ReleaseCapture();
}
}
break;
}
case WindowMessageType.MouseWheel:
{
// Update member var state
m_nMouseWheelDelta += (short)((uint)wParam >> 16);
break;
}
}
}