// Token: 0x06007A0D RID: 31245 RVA: 0x002291F0 File Offset: 0x002273F0
private static void OnCommandPrint(object sender, ExecutedRoutedEventArgs e)
{
RootBrowserWindow rootBrowserWindow = sender as RootBrowserWindow;
Invariant.Assert(rootBrowserWindow != null);
if (!rootBrowserWindow._isPrintingFromRBW)
{
Visual visual = rootBrowserWindow.Content as Visual;
if (visual == null)
{
IInputElement inputElement = rootBrowserWindow.Content as IInputElement;
if (inputElement != null)
{
rootBrowserWindow._isPrintingFromRBW = true;
try
{
if (ApplicationCommands.Print.CanExecute(null, inputElement))
{
ApplicationCommands.Print.Execute(null, inputElement);
return;
}
}
finally
{
rootBrowserWindow._isPrintingFromRBW = false;
}
}
}
PrintDialog printDialog = new PrintDialog();
if (printDialog.ShowDialog() == true)
{
string printJobDescription = RootBrowserWindow.GetPrintJobDescription(RootBrowserWindow.App.MainWindow);
if (visual == null)
{
INavigatorImpl navigatorImpl = rootBrowserWindow;
Invariant.Assert(navigatorImpl != null);
visual = navigatorImpl.FindRootViewer();
Invariant.Assert(visual != null);
}
Rect imageableRect = RootBrowserWindow.GetImageableRect(printDialog);
VisualBrush visualBrush = new VisualBrush(visual);
visualBrush.Stretch = Stretch.None;
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawRectangle(visualBrush, null, new Rect(imageableRect.X, imageableRect.Y, visual.VisualDescendantBounds.Width, visual.VisualDescendantBounds.Height));
drawingContext.Close();
printDialog.PrintVisual(drawingVisual, printJobDescription);
}
}
}
///<summary>
/// Prints the content of the App's MainWindow. The logic is that if the content is not visual but IInputElement
/// we will try to let it handle the command first. If it does not handle the print command we will get the corresponding
/// visual in the visual tree and use that to print.
///</summary>
private static void OnCommandPrint(object sender, ExecutedRoutedEventArgs e)
{
#if !DONOTREFPRINTINGASMMETA
RootBrowserWindow rbw = sender as RootBrowserWindow;
Invariant.Assert(rbw != null);
if (!rbw._isPrintingFromRBW)
{
Visual vis = rbw.Content as Visual;
if (vis == null)
{
// If the content is not Visual but IInputElement, try to let it handle the command first.
// This is for the document scenario. Printing a document is different from printing a visual.
// Printing a visual is to print how it is rendered on screen. Printing a doc prints the full
// doc inculding the part that is not visible. There might be other functionalities that are
// specific for document. FlowDocument's viewer knows how to print the doc.
IInputElement target = rbw.Content as IInputElement;
if (target != null)
{
// CanExecute will bubble up. If nobody between the content and rbw can handle it,
// It would call back on RBW again. Use _isPrintingFromRBW to prevent the loop.
rbw._isPrintingFromRBW = true;
try
{
if (ApplicationCommands.Print.CanExecute(null, target))
{
ApplicationCommands.Print.Execute(null, target);
return;
}
}
finally
{
rbw._isPrintingFromRBW = false;
}
}
}
// Let the user choose a printer and set print options.
PrintDialog printDlg = new PrintDialog();
// If the user pressed the OK button on the print dialog, we proceed
if (printDlg.ShowDialog() == true)
{
string printJobDescription = GetPrintJobDescription(App.MainWindow);
// If the root is not visual and does not know how to print itself, we find the
// corresponding visual and use that to print.
if (vis == null)
{
INavigatorImpl navigator = rbw as INavigatorImpl;
Invariant.Assert(navigator != null);
vis = navigator.FindRootViewer();
Invariant.Assert(vis != null);
}
// Area we can print to for the chosen printer
Rect imageableRect = GetImageableRect(printDlg);
// We print Visuals aligned with the top/left corner of the printable area.
// We do not attempt to print very large Visuals across multiple pages.
// Any portion that doesn't fit on a single page will get cropped by the
// print system.
// Used to draw our visual into another visual for printing purposes
VisualBrush visualBrush = new VisualBrush(vis);
visualBrush.Stretch = Stretch.None;
// Visual we will print - containing a rectangle the size of our
// original Visual but offset into the printable area
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext context = drawingVisual.RenderOpen();
context.DrawRectangle(visualBrush,
null,
new Rect(imageableRect.X,
imageableRect.Y,
vis.VisualDescendantBounds.Width,
vis.VisualDescendantBounds.Height));
context.Close();
printDlg.PrintVisual(drawingVisual, printJobDescription);
}
}
#endif // DONOTREFPRINTINGASMMETA
}