private void OnViewportChanged(object sender, ViewportChangedEventArgs args)
{
if (this._preventPullUntilNextManipulationStateChange)
{
return;
}
this.UpdateScrollPosition();
if (this.ScrollPosition == 0.0 && this.Viewport.ManipulationState == ManipulationState.Manipulating)
{
this.LockBoundsForPull(this._viewport);
}
if (this.OnPullPercentageChanged != null)
{
this.OnPullPercentageChanged();
}
if (this.PullPercentage < 99.9 || this.OnRefresh == null)
{
return;
}
this.OnRefresh();
this._preventPullUntilNextManipulationStateChange = true;
this.UnlockBounds();
if (this.OnPullPercentageChanged == null)
{
return;
}
this.OnPullPercentageChanged();
}
private void Dialogs_OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
if (Dialogs.VerticalAlignment == VerticalAlignment.Stretch &&
Dialogs.Viewport.Viewport.Height + Dialogs.Viewport.Viewport.Y >= Dialogs.Viewport.Bounds.Height + Dialogs.Viewport.Bounds.Y - 0.1 && // scrolled to top
Dialogs.Viewport.Viewport.Y - Dialogs.Viewport.Bounds.Y >= 300.0 - 0.1) // header not in view
{
Dialogs.Background = (Brush)Resources["BackgroundBrush"];
//LayoutRoot.Background = (Brush) Resources["BackgroundBrush"];
}
else
{
Dialogs.Background = null;
//LayoutRoot.Background = (Brush) Resources["TransparentBackgroundBrush"];
}
var watermarkTextBox = FocusManager.GetFocusedElement() as WatermarkedTextBox;
if (watermarkTextBox != null && string.Equals(watermarkTextBox.Tag, "Search"))
{
Dialogs.Background = (Brush)Resources["BackgroundBrush"];
//LayoutRoot.Background = (Brush)Resources["BackgroundBrush"];
}
if (Dialogs.VerticalAlignment == VerticalAlignment.Stretch &&
Dialogs.Viewport.Viewport.Height + Dialogs.Viewport.Viewport.Y >= Dialogs.Viewport.Bounds.Height + Dialogs.Viewport.Bounds.Y - 400.0)
{
LoadLastSlice();
}
Debug.Text = Dialogs.Viewport.Viewport + Environment.NewLine + Dialogs.Viewport.Bounds;
}
void OnViewportChanged(object o, ViewportChangedEventArgs args)
{
if (ViewportControl.ManipulationState == ManipulationState.Manipulating)
{
IsInPullToRefresh = ViewportAtTop;
}
}
private void ViewportControl_OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
Rect viewport = this.viewportControl.Viewport;
// ISSUE: explicit reference operation
this.UpdateHeaderOpacityWithScrollPosition(viewport.Y);
}
private void OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
if (Viewport.Bounds.Y - Viewport.Viewport.Y == 0.0)
{
RaiseBegin();
}
var fromBegin = Viewport.Viewport.Y - Viewport.Bounds.Y;
if (fromBegin >= 500.0 && _fromBegin < 500.0)
{
System.Diagnostics.Debug.WriteLine("RaiseShowScrollButton");
RaiseShowScrollButton();
}
_fromBegin = fromBegin;
if ((Viewport.Bounds.Height + Viewport.Bounds.Y) >= ActualHeight &&
(Viewport.Bounds.Height + Viewport.Bounds.Y) == (Viewport.Viewport.Height + Viewport.Viewport.Y))
{
//Telegram.Api.Helpers.Execute.ShowDebugMessage("CloseToEnd ActualHeight=" + ActualHeight + " Height+Y=" + (Viewport.Bounds.Height + Viewport.Bounds.Y));
RaiseCloseToEnd();
}
RaiseViewportChanged(e);
//System.Diagnostics.Debug.WriteLine("bounds={0} viewport={1}", Viewport.Bounds, Viewport.Viewport);
}
private void ViewportControl_OnViewportChanged(object sender, ViewportChangedEventArgs args)
{
if (this.ucNewMessage.PanelControl.IsOpen || this.ucNewMessage.PanelControl.IsTextBoxTargetFocused)
{
return;
}
this.UpdateFloatControlsVisibility();
}
protected virtual void RaiseViewportChanged(ViewportChangedEventArgs e)
{
var handler = ViewportChanged;
if (handler != null)
{
handler(this, e);
}
}
/// <summary>
/// Either the user has manipulated the image or the size of the viewport has changed. We only
/// care about the size.
/// </summary>
private void OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
Size newSize = new Size(viewport.Viewport.Width, viewport.Viewport.Height);
if (newSize != viewportSize)
{
viewportSize = newSize;
CoerceScale(true);
ResizeImage(false);
}
}
/// <summary>
/// Either the user has manipulated the image or the size of the viewport has changed. We only
/// care about the size.
/// </summary>
private void Viewport_Changed(object sender, ViewportChangedEventArgs e)
{
// Width and height of the viewport
Size newSize = new Size(_viewport.Viewport.Width, _viewport.Viewport.Height);
if (_viewportSize != newSize)
{
_viewportSize = newSize;
CoerceScale(true);
_coercedScale = _minScale;
ResizeImage(false);
}
}
private void _vpCtrl_ViewportChanged(object sender, ViewportChangedEventArgs e)
{
if (this._pendingScrollAction != null)
{
this._pendingScrollAction();
this._pendingScrollAction = null;
}
this._justScrolledToOffset = false;
if (this.OnVerticalOffsetChanged == null)
{
return;
}
this.OnVerticalOffsetChanged(this._vpCtrl.Viewport.Y);
}
private void Map_OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
if (DataContext is MapViewModel mainViewModel)
{
Location topLeft = Map.ViewportPointToLocation(new Point(0, 0));
Location bottomRight = Map.ViewportPointToLocation(new Point(Map.ActualWidth, Map.ActualHeight));
mainViewModel.MapBoundariesChangedCommand.Execute(new MapBoundary(topLeft, bottomRight));
if (!boundingBoxChangeRegistered)
{
mainViewModel.PropertyChanged += Vm_PropertyChanged;
boundingBoxChangeRegistered = true;
}
}
}
private void OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
if (Viewport.Bounds.Y - Viewport.Viewport.Y == 0.0)
{
RaiseBegin();
}
if ((Viewport.Bounds.Height + Viewport.Bounds.Y) >= ActualHeight &&
(Viewport.Bounds.Height + Viewport.Bounds.Y) == (Viewport.Viewport.Height + Viewport.Viewport.Y))
{
//Telegram.Api.Helpers.Execute.ShowDebugMessage("CloseToEnd ActualHeight=" + ActualHeight + " Height+Y=" + (Viewport.Bounds.Height + Viewport.Bounds.Y));
RaiseCloseToEnd();
}
}
void layer_ViewportChanged(object sender, ViewportChangedEventArgs e)
{
if (e.IsAnimated)
{
return;
}
VectorItemsLayer layer = (VectorItemsLayer)sender;
double minX = Math.Min(e.TopLeft.GetX(), e.BottomRight.GetX());
double maxX = Math.Max(e.TopLeft.GetX(), e.BottomRight.GetX());
double minY = Math.Min(e.TopLeft.GetY(), e.BottomRight.GetY());
double maxY = Math.Max(e.TopLeft.GetY(), e.BottomRight.GetY());
foreach (PhotoMapItem item in ((MapItemStorage)layer.Data).Items)
{
double lattitude = item.Location.GetY();
double longitude = item.Location.GetX();
bool isVisible = lattitude > minY && lattitude <maxY && longitude> minX && longitude < maxX;
item.Files.ForEach((file) => { file.VisibleOnMap = isVisible; });
}
this.galleryView.RefreshData();
}
void AutoHideBar_ViewportChanged(object sender, ViewportChangedEventArgs e)
{
var viewport = (ViewportControl)_scroller;
UpdateVisualState(viewport.Viewport.Y);
}
private void ViewportControl_OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
this.UpdateHeaderOpacityWithScrollPosition(this.viewportControl.Viewport.Y);
}
private void ViewportControl_OnViewportControlChanged(object sender, ViewportChangedEventArgs e)
{
double y = this._viewportControl.Viewport.Y;
if (this._viewportControl.ManipulationState != ManipulationState.Idle && !this._isAnimating)
{
if (!this._previousScrollPosition.HasValue)
{
this._previousScrollPosition = new double?(y);
this._initialScrollPositionAfterDirectionChange = y;
this._directionDownwards = true;
}
double num1 = y;
double?nullable = this._previousScrollPosition;
double valueOrDefault1 = nullable.GetValueOrDefault();
if ((num1 < valueOrDefault1 ? (nullable.HasValue ? 1 : 0) : 0) != 0)
{
if (this._directionDownwards)
{
this._initialScrollPositionAfterDirectionChange = y;
}
this._directionDownwards = false;
}
double num2 = y;
nullable = this._previousScrollPosition;
double valueOrDefault2 = nullable.GetValueOrDefault();
if ((num2 > valueOrDefault2 ? (nullable.HasValue ? 1 : 0) : 0) != 0)
{
if (!this._directionDownwards)
{
this._initialScrollPositionAfterDirectionChange = y;
}
this._directionDownwards = true;
}
if (!this._directionDownwards && y < 100.0 && this._freshNewsState != FreshNewsState.Reload)
{
this.UpdateFreshNewsState(FreshNewsState.NoNews);
}
if (this._directionDownwards && y >= this._initialScrollPositionAfterDirectionChange && y > 0.0)
{
double num3 = this._translateHeader.Y - (y - this._previousScrollPosition.Value);
if (num3 < this._minOffsetHeader)
{
num3 = this._minOffsetHeader;
}
int num4 = this._translateHeader.Y != num3 ? 1 : 0;
this._translateHeader.Y = num3;
if (num4 != 0 && num3 == this._minOffsetHeader)
{
this.HideFreshNews();
}
this.UpdateExtraCrop();
}
else if (!this._directionDownwards && y <= Math.Max(this._ucHeader.Height, this._initialScrollPositionAfterDirectionChange - 530.0))
{
double num3 = this._translateHeader.Y - (y - this._previousScrollPosition.Value);
bool flag = false;
if (num3 > this._maxOffsetHeader)
{
num3 = this._maxOffsetHeader;
flag = true;
}
this._translateHeader.Y = num3;
if (flag)
{
this.ShowFreshNews();
}
this.UpdateExtraCrop();
}
}
if (y == 0.0)
{
this.Show(false);
}
this._previousScrollPosition = new double?(y);
this.UpdateSystemTrayAndAppBarIfNeeded();
}
void OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
Size newSize = new Size(_viewPort.Viewport.Width, _viewPort.Viewport.Height);
if (newSize != _viewportSize)
{
_viewportSize = newSize;
CoerceScale(true);
ResizeImage(false);
}
}
void Layer_ViewportChanged(object sender, ViewportChangedEventArgs e)
{
UpdateClip(this.leftPanel.ActualWidth);
}
void TileLayer_ViewportChanged(object sender, ViewportChangedEventArgs e)
{
navWindow.LeftTop = e.TopLeft;
navWindow.RightBottom = e.BottomRight;
}
void AutoHideBar_ViewportChanged(object sender, ViewportChangedEventArgs e)
{
var viewport = (ViewportControl)_scroller;
UpdateVisualState(viewport.Viewport.Y);
}
