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WPF Diagram Designer - Part 4

, 26 Mar 2008
A Frankenbuild
diagramdesignerpart4.zip
DiagramDesigner
Controls
DiagramDesigner.csproj.user
Properties
Settings.settings
Resources
Images
AlignObjectsBottom.png
AlignObjectsCenteredHorizontal.png
AlignObjectsCenteredVertical.png
AlignObjectsLeft.png
AlignObjectsRight.png
AlignObjectsTop.png
BringForward.png
BringToFront.png
Copy.png
Cut.png
Delete.png
DistributeObjectsHorizontal.png
DistributeObjectsVertical.png
GenericDocument.png
Group.png
OpenFolder.png
Paste.png
PasteBig.png
Print.png
Save.png
SendBackward.png
SendToBack.png
Ungroup.png
Stencils
Styles
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:sys="clr-namespace:System;assembly=mscorlib"
                    xmlns:s="clr-namespace:DiagramDesigner"
                    xmlns:c="clr-namespace:DiagramDesigner.Controls">

    <ContextMenu x:Key="DesignerItemContextMenu">
        <MenuItem Header="Cut" Command="{x:Static ApplicationCommands.Cut}">
            <MenuItem.Icon>
                <Image Source="Images/Cut.png" Width="16"/>
            </MenuItem.Icon>
        </MenuItem>
        <MenuItem Header="Copy" Command="{x:Static ApplicationCommands.Copy}">
            <MenuItem.Icon>
                <Image Source="Images/Copy.png" Width="16"/>
            </MenuItem.Icon>
        </MenuItem>
        <MenuItem Header="Paste" Command="{x:Static ApplicationCommands.Paste}">
            <MenuItem.Icon>
                <Image Source="Images/Paste.png" Width="16"/>
            </MenuItem.Icon>
        </MenuItem>
        <MenuItem Header="Delete" Command="{x:Static ApplicationCommands.Delete}">
            <MenuItem.Icon>
                <Image Source="Images/Delete.png" Width="16"/>
            </MenuItem.Icon>
        </MenuItem>
        <Separator/>
        <MenuItem Header="Grouping">
            <MenuItem Header="Group" Command="{x:Static s:DesignerCanvas.Group}">
                <MenuItem.Icon>
                    <Image Source="Images/Group.png" Width="16"/>
                </MenuItem.Icon>
            </MenuItem>
            <MenuItem Header="Ungroup" Command="{x:Static s:DesignerCanvas.Ungroup}">
                <MenuItem.Icon>
                    <Image Source="Images/Ungroup.png" Width="16"/>
                </MenuItem.Icon>
            </MenuItem>
        </MenuItem>
        <MenuItem Header="Order">
            <MenuItem Header="Bring Forward" Command="{x:Static s:DesignerCanvas.BringForward}">
                <MenuItem.Icon>
                    <Image Source="Images/BringForward.png" Width="16"/>
                </MenuItem.Icon>
            </MenuItem>
            <MenuItem Header="Bring To Front" Command="{x:Static s:DesignerCanvas.BringToFront}">
                <MenuItem.Icon>
                    <Image Source="Images/BringToFront.png" Width="16"/>
                </MenuItem.Icon>
            </MenuItem>
            <MenuItem Header="Send Backward" Command="{x:Static s:DesignerCanvas.SendBackward}">
                <MenuItem.Icon>
                    <Image Source="Images/SendBackward.png" Width="16"/>
                </MenuItem.Icon>
            </MenuItem>
            <MenuItem Header="Send To Back" Command="{x:Static s:DesignerCanvas.SendToBack}">
                <MenuItem.Icon>
                    <Image Source="Images/SendToBack.png" Width="16"/>
                </MenuItem.Icon>
            </MenuItem>
        </MenuItem>
    </ContextMenu>

    <!-- Connector Style -->
    <Style TargetType="{x:Type s:Connector}">
        <Setter Property="Width" Value="8"/>
        <Setter Property="Height" Value="8"/>
        <Setter Property="Cursor" Value="Cross"/>
        <Setter Property="SnapsToDevicePixels" Value="true"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type s:Connector}">
                    <Grid>
                        <!-- transparent extra space makes connector easier to hit -->
                        <Rectangle Fill="Transparent" Margin="-2"/>
                        <Rectangle Fill="Lavender" StrokeThickness="1" Stroke="#AA000080"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <!-- ConnectorDecoratorTemplate Default Template -->
    <ControlTemplate x:Key="ConnectorDecoratorTemplate" TargetType="{x:Type Control}">
        <Grid Margin="-5">
            <s:Connector x:Name="Left" Orientation="Left" VerticalAlignment="Center" HorizontalAlignment="Left"/>
            <s:Connector x:Name="Top" Orientation="Top" VerticalAlignment="Top" HorizontalAlignment="Center"/>
            <s:Connector x:Name="Right" Orientation="Right" VerticalAlignment="Center" HorizontalAlignment="Right"/>
            <s:Connector x:Name="Bottom" Orientation="Bottom" VerticalAlignment="Bottom" HorizontalAlignment="Center"/>
        </Grid>
    </ControlTemplate>

    <!-- ResizeDecorator Default Template -->
    <ControlTemplate x:Key="ResizeDecoratorTemplate" TargetType="{x:Type Control}">
        <Grid Opacity="0.7" SnapsToDevicePixels="true">
            <c:ResizeThumb Height="3" Cursor="SizeNS" Margin="0 -4 0 0"
                     VerticalAlignment="Top" HorizontalAlignment="Stretch"/>
            <c:ResizeThumb Width="3" Cursor="SizeWE" Margin="-4 0 0 0"
                     VerticalAlignment="Stretch" HorizontalAlignment="Left"/>
            <c:ResizeThumb Width="3" Cursor="SizeWE" Margin="0 0 -4 0"
                     VerticalAlignment="Stretch" HorizontalAlignment="Right"/>
            <c:ResizeThumb Height="3" Cursor="SizeNS" Margin="0 0 0 -4"
                     VerticalAlignment="Bottom" HorizontalAlignment="Stretch"/>
            <c:ResizeThumb Width="7" Height="7" Cursor="SizeNWSE" Margin="-6 -6 0 0"
                     VerticalAlignment="Top" HorizontalAlignment="Left"/>
            <c:ResizeThumb Width="7" Height="7" Cursor="SizeNESW" Margin="0 -6 -6 0"
                     VerticalAlignment="Top" HorizontalAlignment="Right"/>
            <c:ResizeThumb Width="7" Height="7" Cursor="SizeNESW" Margin="-6 0 0 -6"
                     VerticalAlignment="Bottom" HorizontalAlignment="Left"/>
            <c:ResizeThumb Width="7" Height="7" Cursor="SizeNWSE" Margin="0 0 -6 -6"
                     VerticalAlignment="Bottom" HorizontalAlignment="Right"/>
        </Grid>
    </ControlTemplate>

    <!-- DragThumb Default Template -->
    <Style TargetType="{x:Type c:DragThumb}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type c:DragThumb}">
                    <Rectangle Fill="Transparent"/>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <!-- DesignerItem Style -->
    <Style TargetType="{x:Type s:DesignerItem}">
        <Setter Property="MinWidth" Value="10"/>
        <Setter Property="MinHeight" Value="10"/>
        <Setter Property="SnapsToDevicePixels" Value="True"/>        
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type s:DesignerItem}">
                    <Grid DataContext="{Binding RelativeSource={RelativeSource TemplatedParent}}"
                          ContextMenu="{StaticResource DesignerItemContextMenu}">
                        <!-- PART_DragThumb -->
                        <c:DragThumb x:Name="PART_DragThumb" 
                                     Cursor="SizeAll"/>
                        <!-- PART_ResizeDecorator -->
                        <Control x:Name="PART_ResizeDecorator" 
                                 Visibility="Collapsed"
                                 Template="{StaticResource ResizeDecoratorTemplate}"/>
                        <!-- PART_ContentPresenter -->
                        <ContentPresenter x:Name="PART_ContentPresenter"
                                          HorizontalAlignment="Stretch"
                                          VerticalAlignment="Stretch"
                                          Content="{TemplateBinding ContentControl.Content}"
                                          Margin="{TemplateBinding ContentControl.Padding}"/>
                        <!-- PART_ConnectorDecorator -->
                        <Control x:Name="PART_ConnectorDecorator"
                                 Visibility="Hidden"
                                 Template="{StaticResource ConnectorDecoratorTemplate}"/>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <DataTrigger Value="True" Binding="{Binding RelativeSource={RelativeSource Self},Path=IsGroup}">
                            <Setter TargetName="PART_DragThumb" Property="Visibility" Value="Collapsed"/>
                        </DataTrigger>
                        <MultiDataTrigger>
                            <MultiDataTrigger.Conditions>
                                <Condition Value="True" Binding="{Binding RelativeSource={RelativeSource Self},Path=IsSelected}"/>
                                <Condition Value="{x:Static sys:Guid.Empty}" Binding="{Binding RelativeSource={RelativeSource Self},Path=ParentID}"/>
                            </MultiDataTrigger.Conditions>
                            <Setter TargetName="PART_ResizeDecorator" Property="Visibility" Value="Visible"/>
                        </MultiDataTrigger>
                        <Trigger Property="IsMouseOver" Value="true">
                            <Setter TargetName="PART_ConnectorDecorator" Property="Visibility" Value="Visible"/>
                        </Trigger>
                        <DataTrigger Value="True" Binding="{Binding RelativeSource={RelativeSource Self},Path=IsDragConnectionOver}">
                            <Setter TargetName="PART_ConnectorDecorator" Property="Visibility" Value="Visible"/>
                        </DataTrigger>
                        <DataTrigger Value="True" Binding="{Binding RelativeSource={RelativeSource Self},Path=IsGroup}">
                            <Setter TargetName="PART_ConnectorDecorator" Property="Visibility" Value="Hidden"/>
                        </DataTrigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

</ResourceDictionary>

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

sukram

Austria Austria
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Web04 | 2.8.140721.1 | Last Updated 26 Mar 2008
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