Printing Issues

GoXam
1

I can’t seem to get printing to work properly for me. It appears that nodes that are based on a particular node template that I have are causing issues.

My diagram object looks like this:


<go:Diagram x:Name="myDiagram" Padding="10"
   SelectionChanged="myDiagram_SelectionChanged"
   HorizontalContentAlignment="Stretch"
   VerticalContentAlignment="Stretch"
   GridSnapEnabled="True"
   ContextMenuEnabled="True"
   NodeTemplateDictionary="{StaticResource NodeTemplateDictionary}" 
   AllowDrop="True"
   KeyDown="myDiagram_KeyDown"
   LinkTemplate="{StaticResource LinkTemplate}" Grid.Column="1" Margin="0,3,-0.5,3"
   Grid.Row="2" MinWidth="100">
      <go:Diagram.DefaultTool>
         <go:ToolManager WheelBehavior="Zooms" />
      </go:Diagram.DefaultTool>
      <go:Diagram.PrintManager>
         <go:PrintManager Scale="NaN"/>
      </go:Diagram.PrintManager>
</go:Diagram>

And I’m linking to the Print command by simply:

PrintButton.Command = myDiagram.CommandHandler.PrintCommand;

So to me it seems as basic as the printing setup could be.

My issue is that the diagram looks like this:
Actual Diagram

but outputs this when I print:

I’ve tried setting the bound:

myDiagram.PrintManager.Bounds = myDiagram.Panel.DiagramBounds;

…same result.

What I did notice though is that if I drop on a custom node that I created (that’s based on a different template), it works fine:

but as soon as I drop on one of my ‘Component’ nodes, I get this:

The node template that’s causing these issues looks like this:


        <DataTemplate x:Key="DiagramNodeTemplateConnector">
            <StackPanel go:Node.Location="{Binding Path=Data.Location, Mode=TwoWay}"
                  go:Part.SelectionAdorned="True" go:Part.SelectionElementName="Icon"
                  go:Part.SelectionAdornmentTemplate="{StaticResource NodeSelectionAdornmentTemplate}"
                  go:Node.RotationAngle="{Binding Path=Data.RotationAngle, Mode=TwoWay}"
                  MouseEnter="Node_MouseEnter" MouseLeave="Node_MouseLeave">
                <go:SpotPanel x:Name="Icon">
                    <Image x:Name="Image" Source="{Binding Data.OBJECT_IMAGE}"
                            Width="{Binding Data.DIAGRAM_WIDTH}" HorizontalAlignment="Center" VerticalAlignment="Center">
                        <FrameworkElement.RenderTransform>
                            <ScaleTransform ScaleX="1" />
                        </FrameworkElement.RenderTransform>
                    </Image>
                    <Rectangle x:Name="C" Width="8" Height="8" go:Node.PortId="T" 
                             Stroke="{Binding Node.Tag, Converter={StaticResource theBooleanBrushConverter}}"
                             Fill="{Binding Node.Tag, Converter={StaticResource theBooleanBrushConverter}}"
                             go:SpotPanel.Spot="{Binding Data.OBJECT_SPOT}" go:SpotPanel.Alignment="{Binding Data.OBJECT_SPOT}"
                             go:Node.FromSpot="{Binding Data.OBJECT_SPOT}" go:Node.ToSpot="{Binding Data.OBJECT_SPOT}"
                             go:Node.LinkableFrom="True" go:Node.LinkableTo="True"
                             go:Node.LinkableMaximum="1"/>
                </go:SpotPanel>
                <Grid x:Name="grdBottomConnectorLabels" Margin="-20,0,0,0" VerticalAlignment="Top">
                    <Grid.Background>
                        <ImageBrush Stretch="Uniform" ImageSource="/Configurator;component/Assets/Images/IDBubble.png"/>
                    </Grid.Background>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition x:Name="LeftColumn" Width="0.5*"/>
                        <ColumnDefinition x:Name="CenterColumn" Width="0.5*"/>
                        <ColumnDefinition x:Name="RightColumn" Width="0.5*"/>
                    </Grid.ColumnDefinitions>
                    <Image x:Name="imgPlugOrSocket"
                        Source="{Binding Data.PLUG_OR_SOCKET}"
                        HorizontalAlignment="Left" VerticalAlignment="Top" 
                        Height="20" Width="20" 
                        Grid.Column="0" />
                    <TextBlock x:Name="txtKeyLabel" 
                        FontWeight="Bold" FontSize="14" 
                        Text="{Binding Data.Key}" 
                        HorizontalAlignment="Center" VerticalAlignment="Top" 
                        Margin="0,20,0,0"  Grid.Column="1"/>
                </Grid>
            </StackPanel>
        </DataTemplate>

Can you see anything in my node template definition that might cause this? or any other suggestions?

2

Is this WPF or Silverlight? What version of GoXam? (If you are using Silverlight, you definitely should be at least at version 1.2.6.)

I would guess that it’s a problem with images. Where does the image data reside? There is a lot of asynchrony in both WPF and Silverlight, and perhaps the rendering of images causes an exception during printing if the image data isn’t immediately available.

3

You were correct about the images causing the issue. I replaced the images with black rectangles and now at least something is printing…

This is for Silverlight using GoXam 1.3.2.5

I’ll be looking into a better way to load images I guess…

Thanks for your help.