internal WispTabletDevice(TabletDeviceInfo tabletInfo, PenThread penThread)
: base(tabletInfo)
{
_penThread = penThread;
int count = tabletInfo.StylusDevicesInfo.Length;
WispStylusDevice[] styluses = new WispStylusDevice[count];
for (int i = 0; i < count; i++)
{
StylusDeviceInfo cursorInfo = tabletInfo.StylusDevicesInfo[i];
styluses[i] = new WispStylusDevice(
this,
cursorInfo.CursorName,
cursorInfo.CursorId,
cursorInfo.CursorInverted,
cursorInfo.ButtonCollection);
}
_stylusDeviceCollection = new StylusDeviceCollection(styluses);
// We only create a TabletDevice when one is connected (physically or virtually).
// So we can log the connection in the constructor.
StylusTraceLogger.LogDeviceConnect(
new StylusTraceLogger.StylusDeviceInfo(
Id,
Name,
ProductId,
TabletHardwareCapabilities,
TabletSize,
ScreenSize,
_tabletInfo.DeviceType,
StylusDevices.Count));
}
internal WispStylusDevice UpdateStylusDevices(int stylusId)
{
// REENTRANCY NOTE: Use PenThread to talk to wisptis.exe to make sure we are not reentrant!
// PenImc will cache all the stylus device info so we don't have
// any Out of Proc calls to wisptis.exe to get this info.
StylusDeviceInfo[] stylusDevicesInfo = _penThread.WorkerRefreshCursorInfo(_tabletInfo.PimcTablet.Value);
int cCursors = stylusDevicesInfo.Length;
if (cCursors > StylusDevices.Count)
{
for (int iCursor = 0; iCursor < cCursors; iCursor++)
{
StylusDeviceInfo stylusDeviceInfo = stylusDevicesInfo[iCursor];
// See if we found it. If so go and create the new StylusDevice and add it.
if (stylusDeviceInfo.CursorId == stylusId)
{
WispStylusDevice newStylusDevice = new WispStylusDevice(
this,
stylusDeviceInfo.CursorName,
stylusDeviceInfo.CursorId,
stylusDeviceInfo.CursorInverted,
stylusDeviceInfo.ButtonCollection);
StylusDevices.AddStylusDevice(iCursor, newStylusDevice);
return(newStylusDevice);
}
}
}
return(null); // Nothing to add
}
/////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////
internal WispTabletDevice(TabletDeviceInfo tabletInfo, PenThread penThread)
: base(tabletInfo)
{
_penThread = penThread;
// Constructing a WispTabletDevice means we will actually use this tablet for input purposes.
// Lock the tablet and underlying WISP tablet at this point.
// This is balanced in DisposeOrDeferDisposal.
_penThread.WorkerAcquireTabletLocks(tabletInfo.PimcTablet.Value, tabletInfo.WispTabletKey);
int count = tabletInfo.StylusDevicesInfo.Length;
WispStylusDevice[] styluses = new WispStylusDevice[count];
for (int i = 0; i < count; i++)
{
StylusDeviceInfo cursorInfo = tabletInfo.StylusDevicesInfo[i];
styluses[i] = new WispStylusDevice(
this,
cursorInfo.CursorName,
cursorInfo.CursorId,
cursorInfo.CursorInverted,
cursorInfo.ButtonCollection);
}
_stylusDeviceCollection = new StylusDeviceCollection(styluses);
// We only create a TabletDevice when one is connected (physically or virtually).
// So we can log the connection in the constructor.
StylusTraceLogger.LogDeviceConnect(
new StylusTraceLogger.StylusDeviceInfo(
Id,
Name,
ProductId,
TabletHardwareCapabilities,
TabletSize,
ScreenSize,
_tabletInfo.DeviceType,
StylusDevices.Count));
}
internal StylusPlugInCollection TargetPlugInCollection(RawStylusInputReport inputReport)
{
// Caller must make call to this routine inside of lock(__rtiLock)!
StylusPlugInCollection pic = null;
// We should only be called when not on the application thread!
System.Diagnostics.Debug.Assert(!inputReport.StylusDevice.CheckAccess());
WispStylusDevice stylusDevice = inputReport.StylusDevice.As <WispStylusDevice>();
// We're on the pen thread so can't touch visual tree. Use capturedPlugIn (if capture on) or cached rects.
bool elementHasCapture = false;
pic = stylusDevice.GetCapturedPlugInCollection(ref elementHasCapture);
int pointLength = inputReport.PenContext.StylusPointDescription.GetInputArrayLengthPerPoint();
// Make sure that the captured Plugin Collection is still in the list. CaptureChanges are
// deferred so there is a window where the stylus device is not updated yet. This protects us
// from using a bogus plugin collecton for an element that is in an invalid state.
if (elementHasCapture && !_plugInCollectionList.Contains(pic))
{
elementHasCapture = false; // force true hittesting to be done!
}
if (!elementHasCapture && inputReport.Data != null && inputReport.Data.Length >= pointLength)
{
int[] data = inputReport.Data;
System.Diagnostics.Debug.Assert(data.Length % pointLength == 0);
Point ptTablet = new Point(data[data.Length - pointLength], data[data.Length - pointLength + 1]);
// Note: the StylusLogic data inside DeviceUnitsFromMeasurUnits is protected by __rtiLock.
ptTablet = ptTablet * stylusDevice.TabletDevice.TabletDeviceImpl.TabletToScreen;
ptTablet.X = (int)Math.Round(ptTablet.X); // Make sure we snap to whole window pixels.
ptTablet.Y = (int)Math.Round(ptTablet.Y);
ptTablet = _stylusLogic.MeasureUnitsFromDeviceUnits(ptTablet); // change to measured units now.
pic = HittestPlugInCollection(ptTablet); // Use cached rectangles for UIElements.
}
return(pic);
}
internal void InvokeStylusPluginCollection(RawStylusInputReport inputReport)
{
// Find PenContexts object for this inputReport.
StylusPlugInCollection pic = null;
// lock to make sure only one event is processed at a time and no changes to state can
// be made until we finish routing this event.
lock (__rtiLock)
{
switch (inputReport.Actions)
{
case RawStylusActions.Down:
case RawStylusActions.Move:
case RawStylusActions.Up:
// Figure out current target plugincollection.
pic = TargetPlugInCollection(inputReport);
break;
default:
return; // Nothing to do unless one of the above events
}
WispStylusDevice stylusDevice = inputReport.StylusDevice.As <WispStylusDevice>();
StylusPlugInCollection currentPic = stylusDevice.CurrentNonVerifiedTarget;
// Fire Leave event if we need to.
if (currentPic != null && currentPic != pic)
{
// Create new RawStylusInput to send
GeneralTransformGroup transformTabletToView = new GeneralTransformGroup();
transformTabletToView.Children.Add(new MatrixTransform(_stylusLogic.GetTabletToViewTransform(stylusDevice.TabletDevice))); // this gives matrix in measured units (not device)
transformTabletToView.Children.Add(currentPic.ViewToElement); // Make it relative to the element.
transformTabletToView.Freeze(); // Must be frozen for multi-threaded access.
RawStylusInput tempRawStylusInput = new RawStylusInput(inputReport, transformTabletToView, currentPic);
currentPic.FireEnterLeave(false, tempRawStylusInput, false);
// Indicate we've used a stylus plugin
_stylusLogic.Statistics.FeaturesUsed |= Tracing.StylusTraceLogger.FeatureFlags.StylusPluginsUsed;
stylusDevice.CurrentNonVerifiedTarget = null;
}
if (pic != null)
{
// NOTE: PenContext info will not change (it gets rebuilt instead so keeping ref is fine)
// The transformTabletToView matrix and plugincollection rects though can change based
// off of layout events which is why we need to lock this.
GeneralTransformGroup transformTabletToView = new GeneralTransformGroup();
transformTabletToView.Children.Add(new MatrixTransform(_stylusLogic.GetTabletToViewTransform(stylusDevice.TabletDevice))); // this gives matrix in measured units (not device)
transformTabletToView.Children.Add(pic.ViewToElement); // Make it relative to the element.
transformTabletToView.Freeze(); // Must be frozen for multi-threaded access.
RawStylusInput rawStylusInput = new RawStylusInput(inputReport, transformTabletToView, pic);
inputReport.RawStylusInput = rawStylusInput;
if (pic != currentPic)
{
stylusDevice.CurrentNonVerifiedTarget = pic;
pic.FireEnterLeave(true, rawStylusInput, false);
}
// We are on the pen thread, just call directly.
pic.FireRawStylusInput(rawStylusInput);
// Indicate we've used a stylus plugin
_stylusLogic.Statistics.FeaturesUsed |= Tracing.StylusTraceLogger.FeatureFlags.StylusPluginsUsed;
}
} // lock(__rtiLock)
}
