private void DeleteSelectedComponents_Click(object sender, RoutedEventArgs e)
{
var elements = InkLayer.GetSelectedElements();
var strokes = InkLayer.GetSelectedStrokes();
if (elements.Count > 0 || strokes.Count > 0)
{
DeleteSelectedElements(elements, strokes);
}
e.Handled = true;
}
public void RemoveLayer(InkLayer layer)
{
if (layer == null)
{
return;
}
var n = _layers.IndexOf(layer);
_layers.Remove(layer);
layer.Image.Dispose();
ActiveLayer = n < _layers.Count && n >= 0 ? _layers[n] : _layers.LastOrDefault();
//_canvas.Invalidate();
Invalidate();
}
private void InkLayer_SelectionChanged(object sender, EventArgs e)
{
var layer = (InkLayer.DataContext as ViewModels.Controls.Layer);
InkLayer.UpdateLayout();
var bounds = InkLayer.GetSelectionBounds();
if (bounds != null && !bounds.IsEmpty && bounds.Width > 0 && bounds.Height > 0)
{
var topRightCorner = new Point(bounds.X + bounds.Width, bounds.Y);
DeleteSelectedComponents.SetValue(Canvas.LeftProperty, topRightCorner.X - 2);
DeleteSelectedComponents.SetValue(Canvas.TopProperty, topRightCorner.Y - 23);
DeleteSelectedComponents.Visibility = Visibility.Visible;
}
else
{
DeleteSelectedComponents.Visibility = Visibility.Collapsed;
}
}
public InkLayer AddLayer(string name)
{
var layer = new InkLayer
{
Image = CanvasRenderTargetExtension.CreateEmpty(_canvas, new Size(CanvasWidth, CanvasHeight)),
Name = name,
IsVisible = true,
Opacity = 100
};
layer.PropertyChanged += Layer_PropertyChanged;
using (var ds = layer.Image.CreateDrawingSession())
{
ds.Clear();
}
_layers.Insert(0, layer);
ActiveLayer = layer;
return(layer);
}
private void App_PreviewKeyDown(object sender, KeyEventArgs e)
{
var layer = (InkLayer.DataContext as ViewModels.Controls.Layer);
var elements = InkLayer.GetSelectedElements();
var strokes = InkLayer.GetSelectedStrokes();
if (elements.Count > 0 || strokes.Count > 0)
{
if ((Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl)) &&
(e.Key == Key.X || e.Key == Key.C || e.Key == Key.V))
{
e.Handled = true;
}
else if (e.Key == Key.Delete && layer.IsCurrentLayer)
{
DeleteSelectedElements(elements, strokes);
e.Handled = true;
}
}
}
public async Task <bool> ImportPicture(IRandomAccessStream stream)
{
var layer = new InkLayer
{
Image = CanvasRenderTargetExtension.CreateEmpty(_canvas, new Size(CanvasWidth, CanvasHeight)),
Name = "Imported",
IsVisible = true,
Opacity = 100
};
layer.PropertyChanged += Layer_PropertyChanged;
using (var bitmap = await CanvasBitmap.LoadAsync(_canvas.SwapChain, stream))
using (var ds = layer.Image.CreateDrawingSession())
{
ds.Clear();
ds.DrawImage(bitmap);
}
_layers.Add(layer);
//_canvas.Invalidate();
Invalidate();
return(true);
}
protected virtual void Enter(bool animated)
{
RippleState = MDCInkRippleState.kInkRippleSpreading;
InkLayer.AddSublayer(this);
_animationCleared = false;
}
public async Task<bool> ImportPicture(IRandomAccessStream stream)
{
var layer = new InkLayer
{
Image = CanvasRenderTargetExtension.CreateEmpty(_canvas, new Size(CanvasWidth, CanvasHeight)),
Name = "Imported",
IsVisible = true,
Opacity = 100
};
layer.PropertyChanged += Layer_PropertyChanged;
using (var bitmap = await CanvasBitmap.LoadAsync(_canvas, stream))
using (var ds = layer.Image.CreateDrawingSession())
{
ds.Clear();
ds.DrawImage(bitmap);
}
_layers.Add(layer);
_canvas.Invalidate();
return true;
}
public void RemoveLayer(InkLayer layer)
{
if (layer == null) return;
var n = _layers.IndexOf(layer);
_layers.Remove(layer);
layer.Image.Dispose();
ActiveLayer = n < _layers.Count && n >= 0 ? _layers[n] : _layers.LastOrDefault();
_canvas.Invalidate();
}
public InkLayer AddLayer(string name)
{
var layer = new InkLayer
{
Image = CanvasRenderTargetExtension.CreateEmpty(_canvas, new Size(CanvasWidth, CanvasHeight)),
Name = name,
IsVisible = true,
Opacity = 100
};
layer.PropertyChanged += Layer_PropertyChanged;
using (var ds = layer.Image.CreateDrawingSession())
{
ds.Clear();
}
_layers.Insert(0, layer);
ActiveLayer = layer;
return layer;
}
