private void RefreshLyricTime()
{
if (HyPlayList.lyricpos < 0 || HyPlayList.lyricpos >= LyricList.Count)
{
return;
}
if (HyPlayList.lyricpos == -1)
{
lastitem?.OnHind();
LyricBoxContainer.ChangeView(null, 0, null, false);
}
LyricItem item = LyricList[HyPlayList.lyricpos];
if (item == null)
{
return;
}
lastitem?.OnHind();
item?.OnShow();
lastitem = item;
if (sclock > 0)
{
sclock--;
return;
}
GeneralTransform transform = item?.TransformToVisual((UIElement)LyricBoxContainer.Content);
Point? position = transform?.TransformPoint(new Point(0, 0));
LyricBoxContainer.ChangeView(null, position?.Y - (LyricBoxContainer.ViewportHeight / 3), null, false);
}
/// <summary>
/// Click handler for camera button. Spawns device picker UI
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void UICameraButton_Click(object sender, RoutedEventArgs e)
{
// Disable the top menu while handling the click
await UpdateMediaSourceButtonsAsync(false);
var devicePicker = new DevicePicker();
devicePicker.Filter.SupportedDeviceClasses.Add(DeviceClass.VideoCapture);
// Calculate the position to show the picker (right below the buttons)
GeneralTransform ge = UICameraButton.TransformToVisual(null);
Windows.Foundation.Point point = ge.TransformPoint(new Windows.Foundation.Point());
Windows.Foundation.Rect rect = new Windows.Foundation.Rect(point, new Windows.Foundation.Point(point.X + UICameraButton.ActualWidth, point.Y + UICameraButton.ActualHeight));
DeviceInformation di = await devicePicker.PickSingleDeviceAsync(rect);
if (di != null)
{
try
{
NotifyUser("Attaching to camera " + di.Name);
await ConfigureFrameSourceAsync(di, m_inputImageFeatureDescriptor);
}
catch (Exception ex)
{
NotifyUser("Error occurred while initializating MediaCapture:\n" + ex.Message);
}
}
// Re-enable the top menu once done handling the click
await UpdateMediaSourceButtonsAsync(true);
}
public Rect GetElementRect(FrameworkElement element)
{
GeneralTransform buttonTransform = element.TransformToVisual(null);
Point point = buttonTransform.TransformPoint(new Point());
return(new Rect(point, new Size(element.ActualWidth, element.ActualHeight)));
}
// Appointment를 생성하는 메소드이다.
public async void Add(Object sender, DatePicker startDate, TimePicker startTime, TextBox subject, TextBox location, TextBox details, ComboBox duration, CheckBox allDay)
{
FrameworkElement element = (FrameworkElement)sender;
GeneralTransform transform = element.TransformToVisual(null);
Point point = transform.TransformPoint(new Point());
Rect rect = new Rect(point, new Size(element.ActualWidth, element.ActualHeight));
DateTimeOffset date = startDate.Date;
TimeSpan time = startTime.Time;
int minutes = int.Parse((string)((ComboBoxItem)duration.SelectedItem).Tag);
Appointment appointment = new Appointment()
{
StartTime = new DateTimeOffset(date.Year, date.Month, date.Day, time.Hours, time.Minutes, 0, TimeZoneInfo.Local.GetUtcOffset(DateTime.Now)),
Subject = subject.Text,
Location = location.Text,
Details = details.Text,
Duration = TimeSpan.FromMinutes(minutes),
AllDay = (bool)allDay.IsChecked
};
string id = await AppointmentManager.ShowAddAppointmentAsync(appointment, rect, Placement.Default);
if (string.IsNullOrEmpty(id))
{
Show("Appintment not Added", app_title);
}
else
{
Show($"Appointment {id} Added", app_title);
}
}
public PointerPoint GetCurrentPoint(UIElement relativeTo)
{
if (relativeTo == null)
{
//-----------------------------------
// Return the absolute pointer coordinates:
//-----------------------------------
PointerPoint pointerPoint = new PointerPoint()
{
Position = new Point(_pointerAbsoluteX, _pointerAbsoluteY)
};
return(pointerPoint);
}
else
{
//-----------------------------------
// Returns the pointer coordinates relative to the "relativeTo" element:
//-----------------------------------
// Get the opposite of the absolute position of the "relativeTo" element:
GeneralTransform generalTransform = Window.Current.TransformToVisual(relativeTo);
// Get the pointer coordinates relative to "relativeTo" element:
PointerPoint pointerPoint = new PointerPoint()
{
Position = generalTransform.TransformPoint(new Point(_pointerAbsoluteX, _pointerAbsoluteY))
};
return(pointerPoint);
}
}
public void Initialize(UIElement host, CompositionImage sourceElement, object payload)
{
_host = host;
_parent = host;
_payload = payload;
// Make a copy of the sourceElement's sprite so we can hand it off to the next page
SpriteVisual sourceSprite = sourceElement.SpriteVisual;
Compositor compositor = sourceSprite.Compositor;
_sprite = compositor.CreateSpriteVisual();
_sprite.Size = sourceSprite.Size;
_sprite.Brush = sourceElement.SurfaceBrush;
// We're going to use the backing surface, make sure it doesn't get released
sourceElement.SharedSurface = true;
// Determine the offset from the host to the source element used in the transition
GeneralTransform coordinate = sourceElement.TransformToVisual(_parent);
Point position = coordinate.TransformPoint(new Point(0, 0));
// Set the sprite to that offset relative to the host
_sprite.Offset = new Vector3((float)position.X, (float)position.Y, 0);
// Set the sprite as the content under the host
ElementCompositionPreview.SetElementChildVisual(_parent, _sprite);
}
public static bool ScrollToElement(ScrollViewer sv, UIElement element)
{
GeneralTransform transform = element.TransformToVisual(sv);
Point position = transform.TransformPoint(new Point(0, 0));
return(sv.ChangeView(sv.HorizontalOffset, position.Y, sv.ZoomFactor));
}
private Rect MenuPos()
{
GeneralTransform transform = TransformToVisual(null);
Point pointTransformed = transform.TransformPoint(new Point(0, 0));
return(new Rect(pointTransformed.X, pointTransformed.Y, ActualWidth, ActualHeight));
}
private async void Sv_ViewChanged(object sender, ScrollViewerViewChangedEventArgs e)
{
await Dispatcher.TryRunAsync(CoreDispatcherPriority.Normal, delegate
{
ScrollViewer sv = sender as ScrollViewer;
GeneralTransform gt = sv.TransformToVisual(this);
Point p = gt.TransformPoint(new Point(0, 0));
List <UIElement> list = new List <UIElement>(VisualTreeHelper.FindElementsInHostCoordinates(p, sv));
ListViewItem item = list.OfType <ListViewItem>().FirstOrDefault();
if (item != null)
{
int index = mylist.IndexFromContainer(item);
//Debug.WriteLine("Visible item at top of list is " + index);
var meds = mylist.ItemsSource as GenerateHomePage <InstaMedia>;
foreach (InstaMedia med in meds)
{
if (med.Play)
{
med.Play = false;
}
}
((InstaMedia)meds[index]).Play = true;
}
});
}
private async void pinUnpinButton_Click(object sender, RoutedEventArgs e)
{
try
{
if (SecondaryTile.Exists(thisItem.Title))
{
SecondaryTile secondaryTile = new SecondaryTile(thisItem.Title);
FrameworkElement element = (FrameworkElement)sender;
GeneralTransform transform = element.TransformToVisual(null);
Point point = transform.TransformPoint(new Point());
Rect rect = new Rect(point, new Size(element.ActualWidth, element.ActualHeight));
await secondaryTile.RequestDeleteForSelectionAsync(rect, Placement.Above);
pinButton.Content = "pin";
thisItem.IsPinned = false;
}
else
{
SecondaryTile secondaryTile = new SecondaryTile(
thisItem.Title, thisItem.Title, thisItem.Title,
new Uri(string.Format(CultureInfo.CurrentCulture, "ms-appx://{0}", thisItem.Photo)), TileSize.Square150x150);
secondaryTile.VisualElements.ShowNameOnSquare150x150Logo = true;
await secondaryTile.RequestCreateAsync();
pinButton.Content = "unpin";
thisItem.IsPinned = true;
}
}
catch (Exception ex)
{
Debug.WriteLine("SecondaryTilePage.pinUnpinButton_Click: " + ex.ToString());
}
}
internal static async Task <Boolean> PinSecondaryTile(FrameworkElement _element)
{
string tileActivationArguments = _logoSecondaryTileId;
Uri square150x150Logo = new Uri("ms-appx:///Assets/Square150x150Logo.scale-100.png");
Uri wide310x150Logo = new Uri("ms-appx:///Assets/Wide310x150Logo.scale-100.png");
Uri square310x310Logo = new Uri("ms-appx:///Assets/Square310x310Logo.scale-100.png");
ResourceLoader _res = ResourceLoader.GetForCurrentView();
SecondaryTile secondaryTile =
new SecondaryTile(_logoSecondaryTileId,
"GlobeTrotter",
tileActivationArguments,
square150x150Logo,
TileSize.Square150x150);
secondaryTile.VisualElements.Wide310x150Logo = wide310x150Logo;
secondaryTile.VisualElements.Square310x310Logo = square310x310Logo;
GeneralTransform buttonTransform = _element.TransformToVisual(null);
Point point = buttonTransform.TransformPoint(new Point());
Rect rect = new Rect(point, new Size(_element.ActualWidth, _element.ActualHeight));
return(await secondaryTile.RequestCreateForSelectionAsync(rect, Placement.Above));
}
// 演示如何获取 UIElement 相对于另一个 UIElement 原点（左上角顶点）的位置
private void Demo2()
{
GeneralTransform generalTransform = rectangle1.TransformToVisual(rectangle2); // 获取 rectangle1 相对于 rectangle2 原点（左上角顶点）的 GeneralTransform
Point point = generalTransform.TransformPoint(new Point(0, 0)); // rectangle1 的原点（左上角顶点）相对于 rectangle2 的原点（左上角顶点）的位置
lblMsg.Text += "红色矩形的原点（左上角顶点）相对于绿色矩形的原点（左上角顶点）的位置：" + point.ToString();
}
public void ScrollToSectionAnimated(Hub hub, HubSection section)
{
GeneralTransform transform = section.TransformToVisual(hub);
Point point = transform.TransformPoint(new Point(0, 0));
ScrollViewer viewer = Hub.GetFirstDescendantOfType <ScrollViewer>();
viewer.ChangeView(point.X, null, null, false);
}
public override void StartSelection(Windows.Foundation.Point point)
{
GeneralTransform gt = MainViewController.Instance.InkableScene.TransformToVisual(dxSurface);
_selectionPoints = new List <Windows.Foundation.Point> {
gt.TransformPoint(point)
};
}
void OnSliceManipulationStarted(object sender, ManipulationStartedRoutedEventArgs e)
{
GeneralTransform gt = (sender as Slice).TransformToVisual(_sliceCanvasDecorator);
DisplayBalloon(sender as Slice, gt.TransformPoint(e.Position));
//e.Handled = true;
isSliceEvent = true;
}
private void Cast_Click(object sender, RoutedEventArgs e)
{
//Retrieve the location of the casting button
GeneralTransform transform = (sender as MenuFlyoutItem).TransformToVisual(Window.Current.Content as UIElement);
Point pt = transform.TransformPoint(new Point(0, 0));
Context.ShowCastingUI(new Rect(pt.X, pt.Y, (sender as MenuFlyoutItem).ActualWidth, (sender as MenuFlyoutItem).ActualHeight));
}
// 演示如何获取 UIElement 相对于 app 原点（左上角顶点）的位置
private void Demo1()
{
GeneralTransform generalTransform = rectangle1.TransformToVisual(null); // 获取 rectangle1 相对于 app 原点（左上角顶点）的 GeneralTransform
Point point = generalTransform.TransformPoint(new Point(0, 0)); // rectangle1 的原点（左上角顶点）相对于屏幕 0,0 点的位置
lblMsg.Text += "红色矩形的原点（左上角顶点）相对于屏幕的原点（左上角顶点）的位置：" + point.ToString();
lblMsg.Text += Environment.NewLine;
}
private void mainPointerManager_Added(object sender, PointerManagerEvent e)
{
if (e.NumActiveContacts == 1)
{
GeneralTransform gt = this.TransformToVisual(MainViewController.Instance.InkableScene);
_mainPointerManagerPreviousPoint = gt.TransformPoint(e.CurrentContacts[e.TriggeringPointer.PointerId].Position);
}
}
private double GetRelativeOffset()
{
ScrollContentPresenter scp = MainScrollViewer.GetFirstDescendantOfType <ScrollContentPresenter>();
FrameworkElement content = scp?.Content as FrameworkElement;
GeneralTransform transform = ScrollingTabs.TransformToVisual(content);
return(transform.TransformPoint(new Point(0, 0)).Y - MainScrollViewer.VerticalOffset);
}
private Rect GetRect(object sender)
{
FrameworkElement element = sender as FrameworkElement;
GeneralTransform elementTransform = element.TransformToVisual(null);
Point point = elementTransform.TransformPoint(new Point());
return(new Rect(point, new Size(element.ActualWidth, element.ActualHeight)));
}
/// <summary>
/// 调整歌词控件滚动条位置
/// </summary>
public void ResetLrcviewScroll()
{
GeneralTransform gf = FoucsLrc.LrcTb.TransformToVisual(c_lrc_items);
Point p = gf.TransformPoint(new Point(0, 0));
double os = p.Y - (c_scrollviewer.ActualHeight / 2) + 10;
c_scrollviewer.ChangeView(c_scrollviewer.HorizontalOffset, os, 1);
}
//get the bounding rect of an element relative to 0,0
private static Rect GetElementRect(FrameworkElement element)
{
//get the element point to open the window at the correct point
GeneralTransform transform = element.TransformToVisual(null);
Point point = transform.TransformPoint(new Point());
return(new Rect(point, new Size(element.ActualWidth, element.ActualHeight)));
}
private void SessionsPinButton_Click(object sender, RoutedEventArgs e)
{
FrameworkElement element = (FrameworkElement)sender;
GeneralTransform buttonTransform = element.TransformToVisual(null);
Point point = buttonTransform.TransformPoint(new Point());
Rect rect = new Rect(point, new Size(element.ActualWidth, element.ActualHeight));
(this.DataContext as EventDetailViewModel).PinToStartCommand.Execute(rect);
}
private void Cast_Click(object sender, RoutedEventArgs e)
{
//Retrieve the location of the casting button
GeneralTransform transform = Cast.TransformToVisual(Window.Current.Content);
Point pt = transform.TransformPoint(new Point(0, 0));
//Show the picker above our casting button
castingPicker.Show(new Rect(pt.X, pt.Y, Cast.ActualWidth, Cast.ActualHeight), Windows.UI.Popups.Placement.Above);
}
private void SetDistance(Side side)
{
FrameworkElement ancestor;
switch (side)
{
case Side.Top:
ancestor = _topAncenstor;
break;
case Side.Left:
ancestor = _leftAncenstor;
break;
default:
throw new ArgumentOutOfRangeException("side");
}
Rect ancestorObjectBounds = LayoutInformation.GetLayoutSlot(ancestor);
Rect associatedObjectBounds = LayoutInformation.GetLayoutSlot(AssociatedObject);
GeneralTransform transform = AssociatedObject.TransformToVisual(ancestor);
Point associatedObjectPoint = transform.TransformPoint(new Point(associatedObjectBounds.X, associatedObjectBounds.Y));
double distance;
switch (side)
{
case Side.Top:
distance = associatedObjectPoint.Y / ancestorObjectBounds.Height;
distance = Math.Round(distance, 5);
if (!double.IsInfinity(distance) && !double.IsNaN(distance))
{
if (Math.Abs(_distanceFromTopCached - distance) > 0.0001)
{
DistanceFromTop = _distanceFromTopCached = distance;
}
}
break;
case Side.Left:
distance = associatedObjectPoint.X / ancestorObjectBounds.Width;
distance = Math.Round(distance, 5);
if (!double.IsInfinity(distance) && !double.IsNaN(distance))
{
if (Math.Abs(_distanceFromLeftCached - distance) > 0.0001)
{
DistanceFromLeft = _distanceFromLeftCached = distance;
}
}
break;
default:
throw new ArgumentOutOfRangeException("side");
}
}
public static Rect GetElementRect(FrameworkElement element, Point point)
{
point.X -= 70;
point.Y += 50;
GeneralTransform buttonTransform = element.TransformToVisual(null);
buttonTransform.TransformPoint(point);
return(new Rect(point, new Size(element.ActualWidth, element.ActualHeight)));
}
private Point GetPosition(FrameworkElement sender)
{
GeneralTransform transform = sender.TransformToVisual(null);
Point location = transform.TransformPoint(new Point());
location.Y = location.Y + sender.ActualHeight;
return(location);
}
// 获取“打开方式”对话框的显示位置，即关联 Button 的左下角点的坐标
private Point GetOpenWithPosition(FrameworkElement element)
{
GeneralTransform buttonTransform = element.TransformToVisual(null);
Point desiredLocation = buttonTransform.TransformPoint(new Point());
desiredLocation.Y = desiredLocation.Y + element.ActualHeight;
return(desiredLocation);
}
/// <summary>
/// Recalculates the size of the presenter to match its parent.
/// </summary>
/// <param name="sender">Sender</param>
/// <param name="e">Event args</param>
private void OnSizeChanged(object sender, SizeChangedEventArgs e)
{
if (_presenter != null)
{
ExpanderView parent = _presenter.GetParentByType <ExpanderView>();
GeneralTransform gt = parent.TransformToVisual(_presenter);
Point childToParentCoordinates = gt.TransformPoint(new Point(0, 0));
_presenter.Width = parent.RenderSize.Width + childToParentCoordinates.X;
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
InitDialDeivcePicker();
// 從按下的 button 出現 picker 内容
Button btn = sender as Button;
GeneralTransform transform = btn.TransformToVisual(Window.Current.Content as UIElement);
Point pt = transform.TransformPoint(new Point(0, 0));
picker.Show(new Rect(pt.X, pt.Y, btn.ActualWidth, btn.ActualHeight), Windows.UI.Popups.Placement.Above);
}
