zhusenlin/aistudio-wpf-diagram
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右键拖动画布

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艾竹
2023-03-12 15:26:58 +08:00
parent fb7858fe74
commit e2753b0bff
16 changed files with 711 additions and 142 deletions
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49
AIStudio.Wpf.DiagramDesigner/Controls/DesignerCanvas.cs
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@@ -188,10 +188,16 @@ namespace AIStudio.Wpf.DiagramDesigner
public DesignerCanvas()
{
this.AllowDrop = true;
this.Focusable = true;
Mediator.Instance.Register(this);
_service.PropertyChanged += _service_PropertyChanged;
this.Loaded += DesignerCanvas_Loaded;
}
private void DesignerCanvas_Loaded(object sender, RoutedEventArgs e)
{
this.Focus();
}
protected override void OnRender(DrawingContext dc)
@@ -322,9 +328,12 @@ namespace AIStudio.Wpf.DiagramDesigner
protected override void OnMouseDown(MouseButtonEventArgs e)
{
base.OnMouseDown(e);
base.OnMouseDown(e);
if (_viewModel.IsReadOnly) return;
this.Focus();
if (_service.DrawModeViewModel.CursorMode == CursorMode.Format)
{
var element = (e.OriginalSource as FrameworkElement);
@@ -356,7 +365,7 @@ namespace AIStudio.Wpf.DiagramDesigner
_viewModel.ClearSelectedItemsCommand.Execute(null);
}
e.Handled = true;
//e.Handled = true;
if (_service.DrawModeViewModel.GetDrawMode() == DrawMode.ConnectingLineSmooth)
{
@@ -435,7 +444,7 @@ namespace AIStudio.Wpf.DiagramDesigner
}
}
}
e.Handled = true;
//e.Handled = true;
}
protected override void OnMouseUp(MouseButtonEventArgs e)
@@ -499,7 +508,33 @@ namespace AIStudio.Wpf.DiagramDesigner
sourceConnectorInfo = null;
_service.DrawModeViewModel.ResetDrawMode();
}
}
protected override void OnPreviewKeyDown(KeyEventArgs e)
{
base.OnPreviewKeyDown(e);
if (_viewModel.IsReadOnly) return;
e.Handled = _viewModel.ExecuteShortcut(e);
}
protected override void OnPreviewMouseWheel(MouseWheelEventArgs e)
{
base.OnPreviewMouseWheel(e);
if (Keyboard.IsKeyDown(Key.LeftCtrl) == false
&& Keyboard.IsKeyDown(Key.RightCtrl) == false)
{
return;
}
var newZoomValue = _viewModel.ZoomValue + (e.Delta > 0 ? 0.1 : -0.1);
_viewModel.ZoomValue = Math.Max(Math.Min(newZoomValue, _viewModel.MaximumZoomValue), _viewModel.MinimumZoomValue);
e.Handled = true;
}
protected override Size MeasureOverride(Size constraint)
{
@@ -555,7 +590,7 @@ namespace AIStudio.Wpf.DiagramDesigner
{
base.OnDrop(e);
if (_viewModel.IsReadOnly) return;
if (_viewModel.IsReadOnly) return;
DragObject dragObject = e.Data.GetData(typeof(DragObject)) as DragObject;
if (dragObject != null)
@@ -620,7 +655,7 @@ namespace AIStudio.Wpf.DiagramDesigner
_viewModel.AddItemCommand.Execute(itemBase);
}
}
e.Handled = true;
e.Handled = true;
}
public FullyCreatedConnectorInfo FindNearPortToAttachTo()