/// <summary>
/// Initializes a new instance of the
/// <see cref="T:WinRTXamlToolkit.Controls.TreeView" /> class.
/// </summary>
public TreeView()
{
var pcc = new PropertyChangeEventSource <Style>(this, "ItemContainerStyle");
pcc.ValueChanged += OnItemContainerStylePropertyChanged;
DefaultStyleKey = typeof(TreeView);
ItemsControlHelper = new ItemsControlHelper(this);
Interaction = new InteractionHelper(this);
}
protected override void OnApplyTemplate()
{
base.OnApplyTemplate();
_valueTextBox = GetTemplateChild(ValueTextBoxName) as TextBox;
_dragOverlay = GetTemplateChild(DragOverlayName) as UIElement;
_decrementButton = GetTemplateChild(DecrementButtonName) as RepeatButton;
_incrementButton = GetTemplateChild(IncrementButtonName) as RepeatButton;
_valueBar = GetTemplateChild(ValueBarName) as FrameworkElement;
if (_valueTextBox != null)
{
_valueTextBox.LostFocus += OnValueTextBoxLostFocus;
_valueTextBox.GotFocus += OnValueTextBoxGotFocus;
_valueTextBox.Text = Value.ToString();
_valueTextBox.TextChanged += OnValueTextBoxTextChanged;
}
if (_dragOverlay != null)
{
_dragOverlay.Tapped += OnDragOverlayTapped;
_dragOverlay.ManipulationMode = ManipulationModes.TranslateX | ManipulationModes.TranslateY;
_dragOverlay.PointerPressed += OnDragOverlayPointerPressed;
_dragOverlay.ManipulationDelta += OnDragOverlayManipulationDelta;
}
if (_decrementButton != null)
{
_decrementButton.Click += OnDecrementButtonClick;
var pcc =
new PropertyChangeEventSource <bool>
(_decrementButton, "IsPressed");
pcc.ValueChanged += OnDecrementButtonIsPressedChanged;
}
if (_incrementButton != null)
{
_incrementButton.Click += OnIncrementButtonClick;
var pcc =
new PropertyChangeEventSource <bool>
(_incrementButton, "IsPressed");
pcc.ValueChanged += OnIncrementButtonIsPressedChanged;
}
if (_valueBar != null)
{
_valueBar.SizeChanged += OnValueBarSizeChanged;
UpdateValueBar();
}
UpdateIsReadOnlyDependants();
SetValidIncrementDirection();
}
/// <summary>
/// Initializes event handling to coerce Minimum and Maximum properties to the 0..360 range.
/// </summary>
private void InitializeMinMaxCoercion()
{
this.Minimum = 0.0;
this.Maximum = 360.0;
var minimumChangedEventSource = new PropertyChangeEventSource <double>(
this, "Minimum");
minimumChangedEventSource.ValueChanged += OnMinimumChanged;
var maximumChangedEventSource = new PropertyChangeEventSource <double>(
this, "Maximum");
maximumChangedEventSource.ValueChanged += OnMaximumChanged;
}
/// <summary>
/// Invoked whenever application code or internal processes (such as a rebuilding layout pass) call ApplyTemplate. In simplest terms, this means the method is called just before a UI element displays in your app. Override this method to influence the default post-template logic of a class.
/// </summary>
protected override void OnApplyTemplate()
{
base.OnApplyTemplate();
if (DesignMode.DesignModeEnabled)
{
return;
}
this.GotFocus += OnGotFocus;
this.LostFocus += OnLostFocus;
this.PointerWheelChanged += OnPointerWheelChanged;
_valueTextBox = GetTemplateChild(ValueTextBoxName) as TextBox;
_dragOverlay = GetTemplateChild(DragOverlayName) as UIElement;
_decrementButton = GetTemplateChild(DecrementButtonName) as RepeatButton;
_incrementButton = GetTemplateChild(IncrementButtonName) as RepeatButton;
_valueBar = GetTemplateChild(ValueBarName) as FrameworkElement;
if (_valueTextBox != null)
{
_valueTextBox.LostFocus += OnValueTextBoxLostFocus;
_valueTextBox.GotFocus += OnValueTextBoxGotFocus;
_valueTextBox.Text = Value.ToString();
_valueTextBox.TextChanged += OnValueTextBoxTextChanged;
}
if (_dragOverlay != null)
{
_dragOverlay.Tapped += OnDragOverlayTapped;
_dragOverlay.ManipulationMode = ManipulationModes.TranslateX | ManipulationModes.TranslateY;
_dragOverlay.PointerPressed += OnDragOverlayPointerPressed;
Window.Current.CoreWindow.PointerReleased += CoreWindowOnPointerReleased;
Window.Current.CoreWindow.VisibilityChanged += OnCoreWindowVisibilityChanged;
_dragOverlay.PointerReleased += OnDragOverlayPointerReleased;
_dragOverlay.PointerCaptureLost += OnDragOverlayPointerCaptureLost;
}
if (_decrementButton != null)
{
_decrementButton.Click += OnDecrementButtonClick;
var pcc =
new PropertyChangeEventSource <bool>
(_decrementButton, "IsPressed");
pcc.ValueChanged += OnDecrementButtonIsPressedChanged;
}
if (_incrementButton != null)
{
_incrementButton.Click += OnIncrementButtonClick;
var pcc =
new PropertyChangeEventSource <bool>
(_incrementButton, "IsPressed");
pcc.ValueChanged += OnIncrementButtonIsPressedChanged;
}
if (_valueBar != null)
{
_valueBar.SizeChanged += OnValueBarSizeChanged;
UpdateValueBar();
}
UpdateIsReadOnlyDependants();
SetValidIncrementDirection();
}
private void SubscribeToTransformPropertyChanges(Transform transform)
{
var transformGroup = transform as TransformGroup;
if (transformGroup != null)
{
foreach (var childTransform in transformGroup.Children)
{
SubscribeToTransformPropertyChanges(childTransform);
}
return;
}
var propertyChangeEventSources =
new List <PropertyChangeEventSource <double> >();
_transformPropertyChangeEventSources.Add(transform, propertyChangeEventSources);
var rotateTransform = transform as RotateTransform;
if (rotateTransform != null)
{
var anglePropertyChangeEventSource =
new PropertyChangeEventSource <double>(
rotateTransform,
"Angle");
anglePropertyChangeEventSource.ValueChanged +=
OnTransformPropertyChanged;
propertyChangeEventSources.Add(anglePropertyChangeEventSource);
return;
}
var scaleTransform = transform as ScaleTransform;
if (scaleTransform != null)
{
var scaleXPropertyChangeEventSource =
new PropertyChangeEventSource <double>(
scaleTransform,
"ScaleX");
scaleXPropertyChangeEventSource.ValueChanged +=
OnTransformPropertyChanged;
propertyChangeEventSources.Add(scaleXPropertyChangeEventSource);
var scaleYPropertyChangeEventSource =
new PropertyChangeEventSource <double>(
scaleTransform,
"ScaleY");
scaleYPropertyChangeEventSource.ValueChanged +=
OnTransformPropertyChanged;
propertyChangeEventSources.Add(scaleYPropertyChangeEventSource);
return;
}
var skewTransform = transform as SkewTransform;
if (skewTransform != null)
{
var angleXPropertyChangeEventSource =
new PropertyChangeEventSource <double>(
skewTransform,
"AngleX");
angleXPropertyChangeEventSource.ValueChanged +=
OnTransformPropertyChanged;
propertyChangeEventSources.Add(angleXPropertyChangeEventSource);
var angleYPropertyChangeEventSource =
new PropertyChangeEventSource <double>(
skewTransform,
"AngleY");
angleYPropertyChangeEventSource.ValueChanged +=
OnTransformPropertyChanged;
propertyChangeEventSources.Add(angleYPropertyChangeEventSource);
return;
}
var matrixTransform = transform as MatrixTransform;
if (matrixTransform != null)
{
var matrixPropertyChangeEventSource =
new PropertyChangeEventSource <double>(
matrixTransform,
"Matrix");
matrixPropertyChangeEventSource.ValueChanged +=
OnTransformPropertyChanged;
propertyChangeEventSources.Add(matrixPropertyChangeEventSource);
}
}
/// <summary>
/// Invoked whenever application code or internal processes (such as a rebuilding layout pass) call ApplyTemplate. In simplest terms, this means the method is called just before a UI element displays in your app. Override this method to influence the default post-template logic of a class.
/// </summary>
protected override void OnApplyTemplate()
{
base.OnApplyTemplate();
if (DesignMode.DesignModeEnabled)
{
return;
}
this.GotFocus += this.OnGotFocus;
this.LostFocus += this.OnLostFocus;
this.PointerWheelChanged += this.OnPointerWheelChanged;
_valueTextBox = this.GetTemplateChild(ValueTextBoxName) as UpDownTextBox;
_dragOverlay = this.GetTemplateChild(DragOverlayName) as UIElement;
_decrementButton = this.GetTemplateChild(DecrementButtonName) as RepeatButton;
_incrementButton = this.GetTemplateChild(IncrementButtonName) as RepeatButton;
_valueBar = this.GetTemplateChild(ValueBarName) as FrameworkElement;
if (_valueTextBox != null)
{
_valueTextBox.LostFocus += this.OnValueTextBoxLostFocus;
_valueTextBox.GotFocus += this.OnValueTextBoxGotFocus;
_valueTextBox.Text = this.Value.ToString(CultureInfo.CurrentCulture);
_valueTextBox.TextChanged += this.OnValueTextBoxTextChanged;
_valueTextBox.KeyDown += this.OnValueTextBoxKeyDown;
_valueTextBox.UpPressed += (s, e) => this.Increment();
_valueTextBox.DownPressed += (s, e) => this.Decrement();
_valueTextBox.PointerExited += this.OnValueTextBoxPointerExited;
}
if (_dragOverlay != null)
{
_dragOverlay.Tapped += this.OnDragOverlayTapped;
_dragOverlay.ManipulationMode = ManipulationModes.TranslateX | ManipulationModes.TranslateY;
_dragOverlay.PointerPressed += this.OnDragOverlayPointerPressed;
_dragOverlay.PointerReleased += this.OnDragOverlayPointerReleased;
_dragOverlay.PointerCaptureLost += this.OnDragOverlayPointerCaptureLost;
}
if (_decrementButton != null)
{
_decrementButton.Click += this.OnDecrementButtonClick;
var pcc =
new PropertyChangeEventSource <bool>
(_decrementButton, "IsPressed");
pcc.ValueChanged += this.OnDecrementButtonIsPressedChanged;
}
if (_incrementButton != null)
{
_incrementButton.Click += this.OnIncrementButtonClick;
var pcc =
new PropertyChangeEventSource <bool>
(_incrementButton, "IsPressed");
pcc.ValueChanged += this.OnIncrementButtonIsPressedChanged;
}
if (_valueBar != null)
{
_valueBar.SizeChanged += this.OnValueBarSizeChanged;
this.UpdateValueBar();
}
this.UpdateIsReadOnlyDependants();
this.SetValidIncrementDirection();
}
