private async void DoDrag(object?sender, Avalonia.Input.PointerPressedEventArgs e)
{
DataObject dragData = new DataObject();
dragData.Set(DataFormats.Text, $"You have dragged text {++DragCount} times");
var result = await DragDrop.DoDragDrop(e, dragData, DragDropEffects.Copy);
switch (result)
{
case DragDropEffects.Copy:
if (_DragState != null)
{
_DragState.Text = "The text was copied";
}
break;
case DragDropEffects.Link:
if (_DragState != null)
{
_DragState.Text = "The text was linked";
}
break;
case DragDropEffects.None:
if (_DragState != null)
{
_DragState.Text = "The drag operation was canceled";
}
break;
}
}
private void OnPointerPressed(object?sender, Avalonia.Input.PointerPressedEventArgs e)
{
if ((sender as Border)?.DataContext is not string ctx)
{
throw new Exception("Sample not found");
}
LoadContent(ctx.Replace('/', '.'));
}
/// <inheritdoc/>
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
if (e.MouseButton == MouseButton.Left)
{
e.Handled = UpdateSelectionFromEventSource(e.Source);
}
}
/// <summary>
/// Captura os eventos do Ponteiro ao pressionar
/// </summary>
public void OnPointerPressed(object sender, Avalonia.Input.PointerPressedEventArgs e)
{
//var s = sender as IInputElement;
//e.Pointer.Capture(s);
//isPressed = true;
//var o = e.GetPosition(s);
//origin = new Point(o.X, o.Y);
//MassSpringIncludeWindow msiw = new MassSpringIncludeWindow();
//msiw.Show();
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Device.Capture(this);
_lastPoint = e.GetPosition(this);
var ev = new VectorEventArgs
{
RoutedEvent = DragStartedEvent,
Vector = (Vector)_lastPoint,
};
RaiseEvent(ev);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
if (topHorizontalGrip.IsPointerOver)
{
BeginResizeDrag(WindowEdge.North);
}
else if (bottomHorizontalGrip.IsPointerOver)
{
BeginResizeDrag(WindowEdge.South);
}
else if (leftVerticalGrip.IsPointerOver)
{
BeginResizeDrag(WindowEdge.West);
}
else if (rightVerticalGrip.IsPointerOver)
{
BeginResizeDrag(WindowEdge.East);
}
else if (topLeftGrip.IsPointerOver)
{
BeginResizeDrag(WindowEdge.NorthWest);
}
else if (bottomLeftGrip.IsPointerOver)
{
BeginResizeDrag(WindowEdge.SouthWest);
}
else if (topRightGrip.IsPointerOver)
{
BeginResizeDrag(WindowEdge.NorthEast);
}
else if (bottomRightGrip.IsPointerOver)
{
BeginResizeDrag(WindowEdge.SouthEast);
}
else if (titleBar.IsPointerOver)
{
mouseDown = true;
mouseDownPosition = e.GetPosition(this);
}
else
{
mouseDown = false;
}
base.OnPointerPressed(e);
}
private void ChartPointerPressed(object?sender, Avalonia.Input.PointerPressedEventArgs e)
{
var chart = this.FindControl <CartesianChart>("chart");
var viewModel = DataContext as ViewModel;
// gets the point in the UI coordinates.
var p = e.GetPosition(chart);
// scales the UI coordintaes to the corresponging data in the chart.
// ScaleUIPoint retuns an array of double
var scaledPoint = chart.ScaleUIPoint(new LvcPoint((float)p.X, (float)p.Y));
// where the X coordinate is in the first position
var x = scaledPoint[0];
// and the Y coordinate in the second position
var y = scaledPoint[1];
// finally add the new point to the data in our chart.
viewModel?.Data.Add(new ObservablePoint(x, y));
}
private void PointerPressedOutside(object sender, PointerPressedEventArgs e)
{
if (!StaysOpen)
{
var root = ((IVisual)e.Source).GetVisualRoot();
if (root != this.PopupRoot)
{
Close();
e.Handled = true;
}
}
}
/// <inheritdoc/>
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
if (e.MouseButton == MouseButton.Left || e.MouseButton == MouseButton.Right)
{
e.Handled = UpdateSelectionFromEventSource(
e.Source,
true,
(e.InputModifiers & InputModifiers.Shift) != 0,
(e.InputModifiers & InputModifiers.Control) != 0);
}
}
private void BottomRightCorner_PointerPressed(object?sender, Avalonia.Input.PointerPressedEventArgs e)
{
BeginResize?.Invoke(this, e);
}
/// <inheritdoc/>
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
if (!IsDropDownOpen && ((IVisual)e.Source).GetVisualRoot() != typeof(PopupRoot))
{
IsDropDownOpen = true;
e.Handled = true;
}
if (!e.Handled)
{
if (UpdateSelectionFromEventSource(e.Source))
{
_popup?.Close();
e.Handled = true;
}
}
base.OnPointerPressed(e);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
if (e.Source.InteractiveParent.InteractiveParent == TextView)
{
var point = e.GetPosition(TextView.TextSurface);
var index = TextView.GetOffsetFromPoint(point);
if (index != -1)
{
CaretIndex = index;
var text = TextDocument;
switch (e.ClickCount)
{
case 1:
SelectionStart = SelectionEnd = index;
break;
case 2:
SelectionStart = TextUtilities.GetNextCaretPosition(TextDocument, index, TextUtilities.LogicalDirection.Backward,
TextUtilities.CaretPositioningMode.WordStart);
SelectionEnd = TextUtilities.GetNextCaretPosition(TextDocument, index, TextUtilities.LogicalDirection.Forward,
TextUtilities.CaretPositioningMode.WordBorder);
break;
case 3:
SelectionStart = 0;
SelectionEnd = text.TextLength;
break;
}
e.Device.Capture(TextView);
e.Handled = true;
InvalidateVisual();
if (CaretChangedByPointerClick != null)
{
CaretChangedByPointerClick(this, e);
}
}
else if (TextDocument?.TextLength == 0)
{
SelectionStart = SelectionEnd = CaretIndex = 0;
e.Device.Capture(TextView);
e.Handled = true;
InvalidateVisual();
}
SetHighestColumn();
}
}
/// <summary>
/// Called when the pointer is pressed over the <see cref="MenuItem"/>.
/// </summary>
/// <param name="e">The event args.</param>
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
if (!HasSubMenu)
{
RaiseEvent(new RoutedEventArgs(ClickEvent));
}
else if (IsTopLevel)
{
IsSubMenuOpen = !IsSubMenuOpen;
}
else
{
IsSubMenuOpen = true;
}
e.Handled = true;
}
/// <summary>
/// Called when the pointer is pressed anywhere on the window.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The event args.</param>
private void TopLevelPreviewPointerPress(object sender, PointerPressedEventArgs e)
{
if (IsOpen)
{
var control = e.Source as ILogical;
if (!this.IsLogicalParentOf(control))
{
Close();
}
}
}
private bool MouseDown(IMouseDevice device, uint timestamp, IInputElement root, Point p, MouseButton button, InputModifiers inputModifiers)
{
var hit = HitTest(root, p);
if (hit != null)
{
IInteractive source = GetSource(hit);
if (source != null)
{
var settings = AvaloniaLocator.Current.GetService<IPlatformSettings>();
var doubleClickTime = settings.DoubleClickTime.TotalMilliseconds;
if (!_lastClickRect.Contains(p) || timestamp - _lastClickTime > doubleClickTime)
{
_clickCount = 0;
}
++_clickCount;
_lastClickTime = timestamp;
_lastClickRect = new Rect(p, new Size())
.Inflate(new Thickness(settings.DoubleClickSize.Width / 2, settings.DoubleClickSize.Height / 2));
var e = new PointerPressedEventArgs
{
Device = this,
RoutedEvent = InputElement.PointerPressedEvent,
Source = source,
ClickCount = _clickCount,
MouseButton = button,
InputModifiers = inputModifiers
};
source.RaiseEvent(e);
return e.Handled;
}
}
return false;
}
/// <inheritdoc/>
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
// Ignore pointer presses.
}
private void Border_PointerPressed(object sender, PointerPressedEventArgs e)
{
switch (e.MouseButton)
{
case MouseButton.Right:
{
if (_element != null)
{
Point point = e.GetPosition(_element);
point = FixInvalidPointPosition(point);
StartPan(point);
e.Device.Capture(_element);
}
}
break;
}
}
/// <summary>
/// Called before the <see cref="PointerPressed"/> event occurs.
/// </summary>
/// <param name="e">The event args.</param>
protected virtual void OnPointerPressed(PointerPressedEventArgs e)
{
}
/// <inheritdoc/>
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
PseudoClasses.Add(":pressed");
e.Device.Capture(this);
e.Handled = true;
if (ClickMode == ClickMode.Press)
{
RaiseClickEvent();
}
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
_mouseDown = true;
base.OnPointerPressed(e);
}
/// <summary>
/// Called before the <see cref="PointerPressed"/> event occurs.
/// </summary>
/// <param name="e">The event args.</param>
protected virtual void OnPointerPressed(PointerPressedEventArgs e)
{
}
