private void SwitchPresenter_Loaded(object sender, RoutedEventArgs e)
{
if (_switchRoot == null)
{
this.SwitchParent = VisualTreeHelperEx.FindAncestorByType(this, typeof(SwitchPanel), false) as SwitchPanel;
}
}
private static void OnIDChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if ((e.NewValue == null) || !(d is UIElement))
{
return;
}
SwitchPresenter parentPresenter = VisualTreeHelperEx.FindAncestorByType <SwitchPresenter>(d);
if (parentPresenter != null)
{
parentPresenter.RegisterID(e.NewValue as string, d as FrameworkElement);
}
else
{
d.Dispatcher.BeginInvoke(DispatcherPriority.Loaded,
(ThreadStart) delegate()
{
parentPresenter = VisualTreeHelperEx.FindAncestorByType <SwitchPresenter>(d);
if (parentPresenter != null)
{
parentPresenter.RegisterID(e.NewValue as string, d as FrameworkElement);
}
});
}
}
Rectangle GetPreviewWindowRect()
{
var parentWindow = VisualTreeHelperEx.FindAncestorByType <Window>(this);
var relativePt = PreviewTarget.TranslatePoint(new System.Windows.Point(0, 0), parentWindow);
var rect = new RectangleF((float)relativePt.X, (float)relativePt.Y, (float)PreviewTarget.ActualWidth, (float)PreviewTarget.ActualHeight);
// Maintain Aspect Ratio
if (_webcamModel.WebcamCapture != null)
{
float w = _webcamModel.WebcamCapture.Width;
float h = _webcamModel.WebcamCapture.Height;
var imgWbyH = w / h;
var frameWbyH = rect.Width / rect.Height;
if (imgWbyH > frameWbyH)
{
var newH = rect.Width / imgWbyH;
rect.Y += (rect.Height - newH) / 2;
rect.Height = newH;
}
else
{
var newW = rect.Height * imgWbyH;
rect.X += (rect.Width - newW) / 2;
rect.Width = newW;
}
}
return(rect.ApplyDpi());
}
private static void OnLoaded(object sender, RoutedEventArgs e)
{
SwitchPresenter sp = sender as SwitchPresenter;
if (sp._switchRoot == null)
{
sp.SwitchParent = VisualTreeHelperEx.FindAncestorByType(sp, typeof(SwitchPanel), false) as SwitchPanel;
}
}
Rectangle GetPreviewWindowRect()
{
var parentWindow = VisualTreeHelperEx.FindAncestorByType <Window>(this);
var relativePt = PreviewTarget.TranslatePoint(new System.Windows.Point(0, 0), parentWindow);
var rect = new RectangleF((float)relativePt.X, (float)relativePt.Y, (float)PreviewTarget.ActualWidth, (float)PreviewTarget.ActualHeight);
return(rect.ApplyDpi());
}
/// <summary>
/// Drag of thumb started
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ResizeThumb_DragStarted(object sender, DragStartedEventArgs e)
{
_item = DataContext as TableContent;
if (_item != null)
{
_canvas = VisualTreeHelper.GetParent(_item) as DesignerCanvas;
if (_canvas != null)
{
_connections = VisualTreeHelperEx.FindAncestorByType <DatabaseModelDesigner>(_canvas).ViewModel.ConnectionInfoViewModels.Where(t => t.SourceViewModel.Equals(_item.TableViewModel) || t.DestinationViewModel.Equals(_item.TableViewModel)).ToList();
}
_item.TableViewModel.OnPositionAndMeasureChangesStarted();
}
}
Rectangle GetPreviewWindowRect()
{
var parentWindow = VisualTreeHelperEx.FindAncestorByType <Window>(this);
var relativePt = PreviewGrid.TranslatePoint(new System.Windows.Point(0, 0), parentWindow);
var position = _reactor.Location.Value;
var size = _reactor.Size.Value;
var rect = new RectangleF((float)(relativePt.X + position.X),
(float)(relativePt.Y + position.Y),
(float)(size.Width),
(float)(size.Height));
return(rect.ApplyDpi());
}
private void TreeListView_MouseDown(object sender, MouseButtonEventArgs e)
{
if (e.ChangedButton != MouseButton.Right) return;
if (sender is TreeListView tree)
{
//右键选中
var p = e.GetPosition(tree);
if (tree.InputHitTest(p) is DependencyObject item)
{
if (VisualTreeHelperEx.FindAncestorByType(item, typeof(TreeListViewItem), true) is TreeListViewItem node)
{
node.IsSelected = true;
return;
}
}
}
}
/// <summary>
/// Mouse drag started
/// </summary>
/// <param name="sender"></param>
/// <param name="dragStartedEventArgs"></param>
private void OnDragStarted(object sender, DragStartedEventArgs dragStartedEventArgs)
{
_item = DataContext as TableContent;
if (_item != null)
{
_canvas = VisualTreeHelper.GetParent(_item) as DesignerCanvas;
if (_canvas != null)
{
_connections = VisualTreeHelperEx.FindAncestorByType <DatabaseModelDesigner>(_canvas).ViewModel.ConnectionInfoViewModels
.Where(t => !(t.DestinationViewModel.IsSelected && t.SourceViewModel.IsSelected))
.ToList();
}
_item.TableViewModel.OnPositionAndMeasureChangesStarted();
_item.TableViewModel.IsMoving = true;
}
}
/// <summary>
/// New table
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void NewTableCommand_OnCanExecute(object sender, CanExecuteRoutedEventArgs e)
{
var parent = VisualTreeHelperEx.FindAncestorByType <MainWindow>(this);
if (parent == null)
{
return;
}
var focus = FocusManager.GetFocusedElement(parent);
var isSenderAllowed = focus is ScrollViewer || focus is Button;
if (!isSenderAllowed)
{
e.ContinueRouting = true;
e.CanExecute = false;
}
else
{
e.ContinueRouting = false;
e.CanExecute = true;
}
}
/// <summary>
/// Dimensions changed
/// </summary>
/// <returns></returns>
public async Task CanvasDimensionsChanged()
{
var settings = new MetroDialogSettings()
{
AnimateHide = true,
AnimateShow = false
};
var parent = VisualTreeHelperEx.FindAncestorByType <MetroWindow>(this);
var progressController = await parent.ShowProgressAsync("Please wait...", "Guidelines are updating", false, settings);
await UpdateLines();
await progressController.CloseAsync();
StreamGeometry geometry = DesignerCanvas.CreateGridWithStreamGeometry(ViewModel.CanvasHeight, ViewModel.CanvasWidth,
DesignerCanvas.GridCellWidth);
ModelDesignerCanvas.RefreshGuideLines(geometry);
ViewModel.OnComputedPropertyChanged();
}
