/*
* private void Canvas_Drop(object sender, DragEventArgs e)
* {
* UIElement element = null;
* if (e.Data.GetData(typeof(BarCode)).GetType()== typeof(BarCode))
* {
* element = e.Data.GetData(typeof(BarCode)) as BarCode;
* }
* else if (e.Data.GetData(typeof(TextBlock)).GetType() == typeof(TextBlock))
* {
* element = e.Data.GetData(typeof(TextBlock)) as TextBlock;
* }
* else if (e.Data.GetData(typeof(Line)).GetType() == typeof(Line))
* {
* element = e.Data.GetData(typeof(Line)) as Line;
* }
* else if (e.Data.GetData(typeof(Rectangle)).GetType() == typeof(Rectangle))
* {
* element = e.Data.GetData(typeof(Rectangle)) as Rectangle;
* }
*
* if (element == null) return;
* if (mainCanvas.Children.Count >= 0)
* {
* Console.WriteLine(element);
* mainCanvas.Children.Add(element);
* Canvas.SetTop(element, e.GetPosition(this.mainCanvas).Y);
* Canvas.SetLeft(element, e.GetPosition(this.mainCanvas).X);
* }
* dragStartPoint = null;
* selectedBrush = null;
* RemoveDraggedAdorner();
* e.Handled = true;
* }
*
* public static bool IsMovementBigEnough(Point initialMousePosition, Point currentPosition)
* {
* return (Math.Abs(currentPosition.X - initialMousePosition.X) >= SystemParameters.MinimumHorizontalDragDistance ||
* Math.Abs(currentPosition.Y - initialMousePosition.Y) >= SystemParameters.MinimumVerticalDragDistance);
* }
*
* private void ToolBar_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
* {
* dragStartPoint = new Point?(Mouse.GetPosition(this));
* }
*
* private int dragCount = 0;//ToolBar_PreviewMouseMove会被触发两次，剔除其中一次
* private void ToolBar_PreviewMouseMove(object sender, MouseEventArgs e)
* {
* if (dragStartPoint.HasValue && e.LeftButton == MouseButtonState.Pressed)
* {
* if (IsMovementBigEnough(dragStartPoint.Value, e.GetPosition(this)))
* {
* Button btn = selectedBrush as Button;
* if (btn == null) return;
* this.initialMouseOffset = this.dragStartPoint.Value - btn.TranslatePoint(new Point(0, 0), this);
*
* DataObject dataObject = new DataObject();
* if (btn.Name == "btnBarcode")
* {
* BarCode barCode = new BarCode("1234567");
* dataObject.SetData(barCode);
* }
* else if (btn.Name == "btnText")
* {
* TextBlock tb = new TextBlock();
* tb.AllowDrop = true;
* tb.Text = "12345678";
* dataObject.SetData(tb);
* }
* else if (btn.Name == "btnLine")
* {
* Line line = new Line();
* line.Height = 1;
* line.Width = 100;
* line.X1 = 10;
* line.X2 = 110;
* line.Y1 = 20;
* line.Y2 = 10;
* line.Fill = Brushes.Black;
* dataObject.SetData(line);
* }
* else if (btn.Name == "btnRect")
* {
* Rectangle rectangle = new Rectangle();
* rectangle.Height = 50;
* rectangle.Width = 100;
* rectangle.Fill = Brushes.Transparent;
* dataObject.SetData(rectangle);
* }
* else if (btn.Name == "btnImg")
* {
*
* }
* try
* {
* dragCount++;
* if (dragCount == 2)
* {
* DragDrop.DoDragDrop(this.toolBar, dataObject, DragDropEffects.Copy);
* dragCount = 0;
* }
* }
* catch { }
* }
* }
* else
* {
* selectedBrush = null;
* }
* e.Handled = true;
* }
*
* private void mainCanvas_PreviewDragEnter(object sender, DragEventArgs e)
* {
* BarCode bc = e.Data.GetData(typeof(BarCode)) as BarCode;
* if (bc != null)
* {
* //ShowDraggedAdorner(e.GetPosition(this));
* }
* e.Handled = true;
* }
*
* private void mainCanvas_PreviewDragOver(object sender, DragEventArgs e)
* {
* BarCode bc = e.Data.GetData(typeof(BarCode)) as BarCode;
* if (bc != null)
* {
* //ShowDraggedAdorner(e.GetPosition(this));
* }
* e.Handled = true;
* }
*
*
*
* private void mainCanvas_PreviewDragLeave(object sender, DragEventArgs e)
* {
* RemoveDraggedAdorner();
* e.Handled = true;
* }
*
*/
private void btnPrint_Click(object sender, RoutedEventArgs e)
{
this.Topmost = false;
this.mainCanvas.Background = Brushes.White;
// Display Printer dialog for user to
// choose the printer to output to.
XpsPrintHelper printHelper = new XpsPrintHelper(this.mainCanvas);
PrintDialog printDialog = printHelper.GetPrintDialog();
if (printDialog == null)
{
return; //user selected cancel
}
PrintQueue printQueue = printDialog.PrintQueue;
printHelper.OnAsyncPrintChange += new XpsPrintHelper.AsyncPrintChangeHandler(AsyncPrintEvent);
printHelper.PrintVisualAsync(printQueue);
this.Topmost = true;
}
// ------------------------ ButtonHelperPrint -------------------------
/// <summary>
/// Saves the current DocumentViewer content either
/// synchronously (waiting for completion) or
/// asynchronously (not waiting for completion).</summary>
/// <param name="async">
/// true to save asynchronously; false to save synchronously.</param>
private void ButtonHelperPrint(bool async)
{
// Display Printer dialog for user to
// choose the printer to output to.
XpsPrintHelper printHelper = new XpsPrintHelper(_contentDir);
PrintDialog printDialog = printHelper.GetPrintDialog();
if (printDialog == null)
{
return; //user selected cancel
}
PrintQueue printQueue = printDialog.PrintQueue;
if (async)
{
_printHelper = printHelper;
//Make progress controls visible
AsyncPrintLabel.Visibility = Visibility.Visible;
AsyncPrintProgress.Visibility = Visibility.Visible;
AsyncPrintStatus.Visibility = Visibility.Visible;
//register for async archiving events
_printHelper.OnAsyncPrintChange +=
new XpsPrintHelper.AsyncPrintChangeHandler(AsyncPrintEvent);
AsyncPrintProgress.Value = 10;
AsyncPrintStatus.Text = "Async Print Initiated";
UIEnabled(false, false, true);
}// end:if (async)
// Print the DocumentViewer's current content.
switch (currentMode)
{
case eGuiMode.SingleVisual:
{
printHelper.PrintSingleVisual(printQueue, async);
break;
}
case eGuiMode.MultipleVisuals:
{
printHelper.PrintMultipleVisuals(printQueue, async);
break;
}
case eGuiMode.SingleFlowDocument:
{
printHelper.PrintSingleFlowContentDocument(
printQueue, async);
break;
}
case eGuiMode.SingleFixedDocument:
{
printHelper.PrintSingleFixedContentDocument(
printQueue, async);
break;
}
case eGuiMode.MultipleFixedDocuments:
{
printHelper.PrintMultipleFixedContentDocuments(
printQueue, async);
break;
}
} // end:switch (currentMode)
} // end:ButtonHelperSave()