public static Size FromPixels(PresentationSource source, Size pixelSize) {
if (source == null) {
throw new ArgumentNullException(nameof(source));
}
return (Size)source.CompositionTarget.TransformFromDevice.Transform((Vector)pixelSize);
}
public KinectTouchDevice(int id, PresentationSource source)
: base(id)
{
this.Position = new Point();
this.TouchState = TouchState.Up;
this.SetActiveSource(source);
}
internal RawStylusInputReport(
InputMode mode,
int timestamp,
PresentationSource inputSource,
PenContext penContext,
RawStylusActions actions,
int tabletDeviceId,
int stylusDeviceId,
int[] data)
: base(inputSource, InputType.Stylus, mode, timestamp)
{
// Validate parameters
if (!RawStylusActionsHelper.IsValid(actions))
{
throw new InvalidEnumArgumentException(SR.Get(SRID.Enum_Invalid, "actions"));
}
if (data == null && actions != RawStylusActions.InRange)
{
throw new ArgumentNullException("data");
}
_penContext = new SecurityCriticalDataClass<PenContext>(penContext);
_actions = actions;
_tabletDeviceId = tabletDeviceId;
_stylusDeviceId = stylusDeviceId;
_data = data;
_isSynchronize = false;
}
public static Point ToPixels(PresentationSource source, Point wpfSize) {
if (source == null) {
throw new ArgumentNullException(nameof(source));
}
return (Point)source.CompositionTarget.TransformToDevice.Transform((Vector)wpfSize);
}
internal static Rect ElementToRoot(Rect rectElement, Visual element, PresentationSource presentationSource)
{
GeneralTransform transformElementToRoot = element.TransformToAncestor(presentationSource.RootVisual);
Rect rectRoot = transformElementToRoot.TransformBounds(rectElement);
return rectRoot;
}
public static int GetResolution(PresentationSource source) {
if (source == null) {
throw new ArgumentNullException(nameof(source));
}
int res = (int)(96 * source.CompositionTarget.TransformToDevice.M11);
return res;
}
public static Point TryClientToRoot(Point point, PresentationSource source, bool throwOnError, out bool success)
{
success = default(bool);
object[] parameters = new object[] { point, source, throwOnError, success };
Point result = (Point)tryClientToRootMethod.Invoke(null, parameters);
success = (bool)parameters[3];
return result;
}
public PresentationSourceTreeItem(PresentationSource presentationSource, TreeModel model, TreeType treeType)
: base(presentationSource, null, model, 0)
{
Name = "PresentationSource";
IsExpanded = true;
_treeType = treeType;
_presentationSource = presentationSource;
}
public KinectMultiTouchDevice(IHandDataSource handDataSource, FrameworkElement area)
{
this.touchDevices = new Dictionary<int, KinectTouchDevice>();
this.TargetSize = new Size(area.ActualWidth, area.ActualHeight);
this.presentationSource = PresentationSource.FromVisual(area);
this.handDataSource = handDataSource;
handDataSource.NewDataAvailable += new Core.NewDataHandler<HandCollection>(handDataSource_NewDataAvailable);
area.SizeChanged += new SizeChangedEventHandler(area_SizeChanged);
}
internal static Rect RootToClient(Rect rectRoot, PresentationSource presentationSource)
{
CompositionTarget target = presentationSource.CompositionTarget;
Matrix matrixRootTransform = PointUtil.GetVisualTransform(target.RootVisual);
Rect rectRootUntransformed = Rect.Transform(rectRoot, matrixRootTransform);
Matrix matrixDPI = target.TransformToDevice;
Rect rectClient = Rect.Transform(rectRootUntransformed, matrixDPI);
return rectClient;
}
public SourceChangedEventArgs(PresentationSource oldSource,
PresentationSource newSource,
IInputElement element,
IInputElement oldParent)
{
_oldSource = new SecurityCriticalData<PresentationSource>(oldSource);
_newSource = new SecurityCriticalData<PresentationSource>(newSource);
_element = element;
_oldParent = oldParent;
}
/// <summary>
/// Constructs ad instance of the RawAppCommandInputReport class.
/// </summary>
/// <param name="inputSource">
/// The input source that provided this input.
/// </param>
/// <param name="mode">
/// The mode in which the input is being provided.
/// </param>
/// <param name="timestamp">
/// The time when the input occured.
/// </param>
/// <param name="appCommand">
/// The Application Command associated.
/// </param>
/// <param name="device">
/// The device that generated the app command.
/// </param>
/// <param name="inputType">the input device that generated the input event</param>
internal RawAppCommandInputReport(
PresentationSource inputSource,
InputMode mode,
int timestamp,
int appCommand,
InputType device,
InputType inputType) : base(inputSource, inputType, mode, timestamp)
{
_appCommand = appCommand;
_device = device;
}
internal PenContexts(StylusLogic stylusLogic, PresentationSource inputSource)
{
HwndSource hwndSource = inputSource as HwndSource;
if(hwndSource == null || IntPtr.Zero == (hwndSource).CriticalHandle)
{
throw new InvalidOperationException(SR.Get(SRID.Stylus_PenContextFailure));
}
_stylusLogic = stylusLogic;
_inputSource = new SecurityCriticalData<HwndSource>(hwndSource);
}
public static Point RootToClient(Point point, PresentationSource presentationSource)
{
//
point = ApplyVisualTransform(point, presentationSource.RootVisual, false);
// Convert from measure units into pixels.
point = presentationSource.CompositionTarget.TransformToDevice.Transform(point);
return point;
}
protected InputReport(PresentationSource inputSource, InputType type, InputMode mode, int timestamp)
{
if (inputSource == null)
throw new ArgumentNullException("inputSource");
Validate_InputType( type );
Validate_InputMode( mode );
_inputSource= new SecurityCriticalData<PresentationSource>(inputSource);
_type = type;
_mode = mode;
_timestamp = timestamp;
}
public MultitouchInputProvider(PresentationSource source)
{
this.source = source;
contactsQueue = new Queue<RawMultitouchReport>();
inputManagerProcessInput = InputManagerProcessInput;
contactHandler = new ContactHandler(((HwndSource)source).Handle);
contactHandler.ContactMoved += HandleContact;
contactHandler.ContactRemoved += HandleContact;
contactHandler.NewContact += HandleContact;
inputManager = InputManager.Current;
multitouchLogic = MultitouchLogic.Current;
}
public MotionTrackingDevice(Window window, MotionTrackingScreen screen)
: base()
{
if (window == null)
throw new ArgumentNullException("window");
if (screen == null)
throw new ArgumentNullException("screen");
this.screen = screen;
this.rootWindow = window;
_activeSource = PresentationSource.FromVisual(window);
Activate();
}
/// <summary>
/// Constructs ad instance of the RawKeyboardInputReport class.
/// </summary>
/// <param name="inputSource">
/// The input source that provided this input.
/// </param>
/// <param name="mode">
/// The mode in which the input is being provided.
/// </param>
/// <param name="timestamp">
/// The time when the input occured.
/// </param>
/// <param name="isDeadCharacter">
/// True if the char code is a dead char.
/// </param>
/// <param name="isSystemCharacter">
/// True if the char code is a system char.
/// </param>
/// <param name="isControlCharacter">
/// True if the char code is a control char.
/// </param>
/// <param name="characterCode">
/// The character code.
/// </param>
public RawTextInputReport(
PresentationSource inputSource,
InputMode mode,
int timestamp,
bool isDeadCharacter,
bool isSystemCharacter,
bool isControlCharacter,
char characterCode) : base(inputSource, InputType.Text, mode, timestamp)
{
_isDeadCharacter = isDeadCharacter;
_isSystemCharacter = isSystemCharacter;
_isControlCharacter = isControlCharacter;
_characterCode = characterCode;
}
public RawUIStateInputReport(
PresentationSource inputSource,
InputMode mode,
int timestamp,
RawUIStateActions action,
RawUIStateTargets targets) : base(inputSource, InputType.Keyboard, mode, timestamp)
{
if (!IsValidRawUIStateAction(action))
throw new System.ComponentModel.InvalidEnumArgumentException("action", (int)action, typeof(RawUIStateActions));
if (!IsValidRawUIStateTargets(targets))
throw new System.ComponentModel.InvalidEnumArgumentException("targets", (int)targets, typeof(RawUIStateTargets));
_action = action;
_targets = targets;
}
private static IntPtr GetWindowHandleFromElement(System.Windows.FrameworkElement element)
{
System.Windows.PresentationSource isource = System.Windows.PresentationSource.FromVisual(element);
if (isource == null)
{
//throw new Exception( "Could not get PresentationSource." );
GlobalLog.LogEvidence(new Exception("Could not get PresentationSource."));
}
IWin32Window iwin = (IWin32Window)isource;
if (iwin == null)
{
//throw new Exception( "Could not get IWin32Window." );
GlobalLog.LogEvidence(new Exception("Could not get IWin32Window."));
}
return(iwin.Handle);
}
public RawKeyboardInputReport(
PresentationSource inputSource,
InputMode mode,
int timestamp,
RawKeyboardActions actions,
int scanCode,
bool isExtendedKey,
bool isSystemKey,
int virtualKey,
IntPtr extraInformation) : base(inputSource, InputType.Keyboard, mode, timestamp)
{
if (!IsValidRawKeyboardActions(actions))
throw new System.ComponentModel.InvalidEnumArgumentException("actions", (int)actions, typeof(RawKeyboardActions));
_actions = actions;
_scanCode = scanCode;
_isExtendedKey = isExtendedKey;
_isSystemKey = isSystemKey;
_virtualKey = virtualKey;
_extraInformation = new SecurityCriticalData<IntPtr>(extraInformation);
}
public static Point TryClientToRoot(Point point, PresentationSource presentationSource, bool throwOnError, out bool success)
{
// Only do if we allow throwing on error or have a valid PresentationSource and CompositionTarget.
if (throwOnError || (presentationSource != null && presentationSource.CompositionTarget != null && !presentationSource.CompositionTarget.IsDisposed))
{
// Convert from pixels into measure units.
point = presentationSource.CompositionTarget.TransformFromDevice.Transform(point);
//
point = TryApplyVisualTransform(point, presentationSource.RootVisual, true, throwOnError, out success);
}
else
{
success = false;
return new Point(0,0);
}
return point;
}
public SourceChangedEventArgs(PresentationSource oldSource, PresentationSource newSource)
{
}
private static void AddElementToWatchList(DependencyObject element)
{
if (_watchers.Add(element))
{
element.SetValue(CachedSourceProperty, new
SecurityCriticalDataForMultipleGetAndSet <PresentationSource>(PresentationSource.FindSource(element)));
element.SetValue(GetsSourceChangedEventProperty, true);
}
}
/// <summary>
/// Controls call this to leave menu mode.
///</summary>
public void PopMenuMode(PresentationSource menuSite)
{
if (menuSite == null)
{
throw new ArgumentNullException("menuSite");
}
menuSite.VerifyAccess();
if (_menuModeCount <= 0)
{
throw new InvalidOperationException();
}
menuSite.PopMenuMode();
_menuModeCount -= 1;
if (0 == _menuModeCount)
{
EventHandler leaveMenuMode = LeaveMenuMode;
if (null != leaveMenuMode)
{
leaveMenuMode(null, EventArgs.Empty);
}
}
}
/// <summary>
/// Controls call this to enter menu mode.
///</summary>
public void PushMenuMode(PresentationSource menuSite)
{
if (menuSite == null)
{
throw new ArgumentNullException("menuSite");
}
menuSite.VerifyAccess();
menuSite.PushMenuMode();
_menuModeCount += 1;
if (1 == _menuModeCount)
{
EventHandler enterMenuMode = EnterMenuMode;
if (null != enterMenuMode)
{
enterMenuMode(null, EventArgs.Empty);
}
}
}
private Rect CalculateAssignedRC(PresentationSource source)
{
Rect rectElement = new Rect(m_elementAttachedTo.RenderSize);
Rect rectRoot = RectUtil.ElementToRoot(rectElement, m_elementAttachedTo, source);
return RectUtil.RootToClient(rectRoot, source);
}
static bool WindowBoundsValidAnyScreen(PresentationSource source, Rect bounds)
{
foreach (var screen in System.Windows.Forms.Screen.AllScreens) {
var wa = screen.WorkingArea;
var i = new Rect(wa.X, wa.Y, wa.Width, wa.Height);
i.Transform(source.CompositionTarget.TransformFromDevice);
i.Intersect(bounds);
if (i.Width > 10 && i.Height > 10) return true;
}
return false;
}
static bool WindowBoundsValid(PresentationSource source, Rect bounds)
{
var i = Rect.Intersect(bounds, SystemParameters.WorkArea);
if (i.Width > 10 && i.Height > 10) return true;
// the fallback method must not be inlined to avoid loading System.Drawing and System.Windows.Forms in the common code path
return WindowBoundsValidAnyScreen(source, bounds);
}
public SourceChangedEventArgs(PresentationSource oldSource, PresentationSource newSource, IInputElement element, IInputElement oldParent)
{
}
public SourceChangedEventArgs(PresentationSource oldSource, PresentationSource newSource)
{
throw new NotImplementedException();
}
public KinectMultiTouchDevice(IHandDataSource handDataSource, PresentationSource presentationSource, Size targetSize)
{
this.presentationSource = presentationSource;
this.TargetSize = targetSize;
}
protected void RootChanged(Visual oldRoot, Visual newRoot)
{
PresentationSource oldSource = null;
if (oldRoot == newRoot)
{
return;
}
// Always clear the RootSourceProperty on the old root.
if (oldRoot != null)
{
oldSource = CriticalGetPresentationSourceFromElement(oldRoot, RootSourceProperty);
oldRoot.ClearValue(RootSourceProperty);
}
// Always set the SourceProperty on the new root.
if (newRoot != null)
{
newRoot.SetValue(RootSourceProperty, new SecurityCriticalDataForMultipleGetAndSet <PresentationSource>(this));
}
UIElement oldRootUIElement = oldRoot as UIElement;
UIElement newRootUIElement = newRoot as UIElement;
// The IsVisible property can only be true if root visual is connected to a presentation source.
// For Read-Only force-inherited properties, use a private update method.
if (oldRootUIElement != null)
{
oldRootUIElement.UpdateIsVisibleCache();
}
if (newRootUIElement != null)
{
newRootUIElement.UpdateIsVisibleCache();
}
// Broadcast the Unloaded event starting at the old root visual
if (oldRootUIElement != null)
{
oldRootUIElement.OnPresentationSourceChanged(false);
}
// Broadcast the Loaded event starting at the root visual
if (newRootUIElement != null)
{
newRootUIElement.OnPresentationSourceChanged(true);
}
// To fire PresentationSourceChanged when the RootVisual changes;
// rather than simulate a "parent" pointer change, we just walk the
// collection of all nodes that need the event.
foreach (DependencyObject element in _watchers)
{
// We only need to update those elements that are in the
// same context as this presentation source.
if (element.Dispatcher == Dispatcher)
{
PresentationSource testSource = CriticalGetPresentationSourceFromElement(element, CachedSourceProperty);
// 1) If we are removing the rootvisual, then fire on any node whos old
// PresetationSource was the oldSource.
// 2) If we are attaching a rootvisual then fire on any node whos old
// PresentationSource is null;
if (oldSource == testSource || null == testSource)
{
UpdateSourceOfElement(element, null, null);
}
}
}
}
/////////////////////////////////////////////////////////////////////
internal static IInputElement GlobalHitTest(PresentationSource inputSource, Point pt)
{
return MouseDevice.GlobalHitTest(pt, inputSource);
}
internal IInputElement FindTarget(PresentationSource inputSource, Point position)
{
IInputElement stylusOver = null;
switch (_captureMode)
{
case CaptureMode.None:
{
stylusOver = GlobalHitTest(inputSource, position);
// We understand UIElements and ContentElements.
// If we are over something else (like a raw visual)
// find the containing element.
if (!InputElement.IsValid(stylusOver))
stylusOver = InputElement.GetContainingInputElement(stylusOver as DependencyObject);
}
break;
case CaptureMode.Element:
//
stylusOver = _stylusCapture;
break;
case CaptureMode.SubTree:
{
IInputElement stylusCapture = InputElement.GetContainingInputElement(_stylusCapture as DependencyObject);
if ( stylusCapture != null && inputSource != null )
{
// We need to re-hit-test to get the "real" UIElement we are over.
// This allows us to have our capture-to-subtree span multiple windows.
// GlobalHitTest always returns an IInputElement, so we are sure to have one.
stylusOver = GlobalHitTest(inputSource, position);
}
if (stylusOver != null && !InputElement.IsValid(stylusOver))
stylusOver = InputElement.GetContainingInputElement(stylusOver as DependencyObject);
// Make sure that the element we hit is acutally underneath
// our captured element. Because we did a global hit test, we
// could have hit an element in a completely different window.
//
// Note that we support the child being in a completely different window.
// So we use the GetUIParent method instead of just looking at
// visual/content parents.
if (stylusOver != null)
{
IInputElement ieTest = stylusOver;
UIElement eTest = null;
ContentElement ceTest = null;
while (ieTest != null && ieTest != stylusCapture)
{
eTest = ieTest as UIElement;
if(eTest != null)
{
ieTest = InputElement.GetContainingInputElement(eTest.GetUIParent(true));
}
else
{
ceTest = ieTest as ContentElement; // Should never fail.
ieTest = InputElement.GetContainingInputElement(ceTest.GetUIParent(true));
}
}
// If we missed the capture point, we didn't hit anything.
if (ieTest != stylusCapture)
{
stylusOver = _stylusCapture;
}
}
else
{
// We didn't hit anything. Consider the stylus over the capture point.
stylusOver = _stylusCapture;
}
}
break;
}
return stylusOver;
}
public SourceChangedEventArgs(PresentationSource oldSource, PresentationSource newSource,
IInputElement element, IInputElement oldParent)
{
throw new NotImplementedException();
}
private PresentationSource DetermineValidSource(PresentationSource inputSource, StylusPointCollection stylusPoints, PenContexts penContextsOfPoints)
{
HwndSource hwndSource = (HwndSource)inputSource;
// See if window has been closed or is invalid
if (inputSource.CompositionTarget == null || inputSource.CompositionTarget.IsDisposed ||
hwndSource == null || hwndSource.IsHandleNull)
{
PresentationSource newSource = null;
// use capture as fallback first
if (_stylusCapture != null)
{
DependencyObject containingVisual = InputElement.GetContainingVisual(_stylusCapture as DependencyObject);
PresentationSource capturedSource = PresentationSource.CriticalFromVisual(containingVisual);
if (capturedSource != null &&
capturedSource.CompositionTarget != null &&
!capturedSource.CompositionTarget.IsDisposed)
{
newSource = capturedSource; // Good new source to use!
}
}
// Now try last screen point hittesting to find a new window/PresetationSource.
if (newSource == null && stylusPoints != null)
{
Point ptScreen;
// If we have the last penContext then we can remap the coordinates properly.
// Otherwise we just use the last stylus mouse location to figure out a PresenationSource.
if (penContextsOfPoints != null)
{
ptScreen = _stylusLogic.DeviceUnitsFromMeasureUnits((Point)stylusPoints[0]);
// map from window to screen (ie - add the window location).
ptScreen.Offset(penContextsOfPoints.DestroyedLocation.X, penContextsOfPoints.DestroyedLocation.Y);
}
else
{
ptScreen = _lastMouseScreenLocation;
}
IntPtr hwndHit = UnsafeNativeMethods.WindowFromPoint((int)ptScreen.X, (int)ptScreen.Y);
if (hwndHit != IntPtr.Zero)
{
HwndSource newHwndSource = HwndSource.CriticalFromHwnd(hwndHit);
if (newHwndSource != null && newHwndSource.Dispatcher == Dispatcher)
{
newSource = newHwndSource;
}
}
}
return newSource;
}
else
{
return inputSource;
}
}
public SourceChangedEventArgs(PresentationSource oldSource,
PresentationSource newSource)
: this(oldSource, newSource, null, null)
{
}