private void HitTesting(Point hitPoint)
{
bool hitConnectorFlag = false;
DependencyObject hitObject = this.uiElement.InputHitTest(hitPoint) as DependencyObject;
while (hitObject != null && hitObject.GetType() != typeof(Canvas))
{
if (hitObject is BarCode)
{
selectedBarCode = hitObject as BarCode;
return;
}
hitObject = VisualTreeHelper.GetParent(hitObject);
}
selectedBarCode = null;
}
private void HitTesting(Point hitPoint)
{
bool hitConnectorFlag = false;
DependencyObject hitObject = this.uiElement.InputHitTest(hitPoint) as DependencyObject;
while (hitObject != null && hitObject.GetType() != typeof(Canvas))
{
if (hitObject is BarCode)
{
selectedBarCode = hitObject as BarCode;
return;
}
hitObject = VisualTreeHelper.GetParent(hitObject);
}
selectedBarCode = null;
}
private void mainCanvas_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (selectedButton == null) return;
if (selectedButton.Name == "btnBarcode")
{
BarCode barCode = new BarCode("1234567");
selectedElement = barCode;
}
else if (selectedButton.Name == "btnText")
{
TextBlock tb = new TextBlock();
tb.Text = "1234567";
selectedElement = tb;
}
else if (selectedButton.Name == "btnRect")
{
Rectangle rectangle = new Rectangle();
rectangle.Height = 50;
rectangle.Width = 100;
rectangle.Fill = Brushes.Red;
selectedElement = rectangle;
}
else if (selectedButton.Name == "btnLine")
{
Line line = new Line();
//line.Height = 1;
//line.Width = 100;
line.X1 = 10;
line.X2 = 110;
line.Y1 = 20;
line.Y2 = 20;
line.StrokeThickness = 2;
line.Stroke = Brushes.Black;
line.HorizontalAlignment = HorizontalAlignment.Left;
line.VerticalAlignment = VerticalAlignment.Center;
selectedElement = line;
}
else if (selectedButton.Name == "btnImg")
{
Image img = new Image();
img.Width = 100;
img.Height = 100;
BitmapImage bitmap = new BitmapImage();
bitmap.BeginInit();
bitmap.UriSource = new Uri("../../../icons/barcode.png", UriKind.Relative);
bitmap.EndInit();
img.Source = bitmap;
img.Stretch = Stretch.Fill;
selectedElement = img;
}
mainCanvas.Children.Add(selectedElement);
if (selectedElement.GetType() != typeof(BarCode))
{
selectedElement.PreviewMouseLeftButtonDown += new MouseButtonEventHandler(selectedElement_PreviewMouseLeftButtonDown);
selectedElement.PreviewMouseMove += new MouseEventHandler(selectedElement_PreviewMouseMove);
selectedElement.PreviewMouseLeftButtonUp += new MouseButtonEventHandler(selectedElement_PreviewMouseLeftButtonUp);
}
Canvas.SetTop(selectedElement, e.GetPosition(this.mainCanvas).Y);
Canvas.SetLeft(selectedElement, e.GetPosition(this.mainCanvas).X);
selectedButton = null;
}