Crop Activity

Build 1501 on 14/Nov/2017  This topic last edited on: 5/Aug/2014, at 14:52

Crop Activity is used within image crop WindowsWorkflows.

Improvements to the Crop WindowsWorkflow activity

Added new output properties (SelectedDestId, SelectedDestIds and SelectedDestName) that contain the id and the name of the extract destination selected by the user into the cropping control.

The data of this destination (resolution, etc...) is then used to actually cropping the picture.

•SelectedDestId: id of the selected extract destination as integer

•SelectedDestIds: id of the selected extract destination as list of integers. This list contains only the id of the extract destination selected by the user and it is compatible with all activities expecting a list of integer as input (ObjectsAction and descenders).

•SelectedDestName: the name of the selected extract destination as string

These output properties of the Crop activity can be bound to the properties of the other WindowsWorkflow activities. For example:

<Crop

  x:Name="cropForm">

 

  <Log

    x:Name='logDebug'

    Message="Selected destination: id {0}, name '{1}'">

    <Log.Pars>

      <wf:WorkflowParameterBinding wf:ParameterName="p0" wf:Value="{wf:ActivityBind cropForm, Path=SelectedDestId}"/>

      <wf:WorkflowParameterBinding wf:ParameterName="p1" wf:Value="{wf:ActivityBind cropForm, Path=SelectedDestName}"/>

    </Log.Pars>

  </Log>

</Crop>

Note that the standard cropping WindowsWorkflow (wf_Crop.xml) stores the id of the extract destination used for cropping into the 'crops.extractRef' attribute of the original image.

Added two new input properties (DestinationIds and DestinationNames). The input properties allow to specify the extract destinations prompted by the crop control passing them to the Crop activity either by ids or by names (just like the Variant activity accepts the VariantTypes either as ids and as names).

So, now there are many ways to specify the crop extract destinations into a WindowsWorkflow:

•As XML (like before)

oEmbedded into the WindowsWorkflow

<Crop

  x:Name="cropForm">

 

  <Crop.Destinations>

    <ExtractDestinationList>

      <ExtractDestination

        Name="Destination 1"

        FolderId="2067" MinScale="50" MaxScale="150" ScaleCroppedImg="true" AllowFreeCrop="true" Overwrite="true">

        <ExtractDestination.Presets>

          <PresetList>

            <Preset Name="fixed size" Width="800" Height="600" Kind="Pixel"></Preset>

            <Preset Name="fixed ratio" Width="2" Height="1" Kind="Ratio"></Preset>

          </PresetList>

        </ExtractDestination.Presets>

      </ExtractDestination>

      <ExtractDestination

        Name="Destination 2"

        Url="file:///c:\temp"

        MinScale="30" MaxScale="130" Resolution="72" ScaleCroppedImg="false" AllowFreeCrop="false" Overwrite="false">

        <ExtractDestination.Presets>

          <PresetList>

            <Preset Name="square" Width="5" Height="5" Kind="Inch"></Preset>

          </PresetList>

        </ExtractDestination.Presets>

      </ExtractDestination>

    </ExtractDestinationList>

  </Crop.Destinations>  

</Crop>

oGenerated by a stylesheet

<wfres:workFlow>  

  <NavigatorWorkflow

    x:Name="mainWorkflow">

 

    <!-- load the extractDest from the database -->

    <Execute

      x:Name="destinations">

 

      <Search

        x:Name="searchDestinations" />

 

      <LoadObjects

        x:Name="loadDestinations"

        ObjectIds='{wf:ActivityBind searchDestinations, Path=IdsOut}'

        XmlOut='{wf:ActivityBind mainWorkflow, Path=XmlVars["destinations"]}' />

    </Execute>

  

    <!-- show the crop control -->

    <Crop

      x:Name="cropForm"

      DestinationsXml='{wf:ActivityBind mainWorkflow, Path=XmlVars["destinations"]}' />

 

  </NavigatorWorkflow>

 

  <!-- searchConditions to search for extract destinations into the database -->

  <SearchConditions

    wfres:activityName="searchDestinations"

    ObjectTypeName="extractDest"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns="http://www.teradp.com/schemas/GN4/1/SearchConditions.xsd" />

 

  <!-- stylesheet which transforms the load GN4 extractDest objects into a array of destinations readable by the Crop activity-->

  <eopt:XmlExportOptions

    wfres:activityName="loadDestinations"

    xmlns:eopt="http://www.teradp.com/schemas/GN4/1/XmlExportOptions.xsd"

    AccessStrict="false">

    <eopt:Xslt>

      <xsl:stylesheet version="1.0"

         xmlns:gn4="urn:schemas-teradp-com:gn4tera"

         xmlns:lc="http://www.teradp.com/schemas/GN4/1/LoginContext.xsd"

         xmlns:fn="http://www.teradp.com/schemas/GN4/1/Xslt"

         xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

        <xsl:template match="/*">

          <xsl:element name="ArrayOfExtractDestination">

            <xsl:for-each select="/gn4:objects/gn4:extractDest|/gn4:extractDest">

              <xsl:element name="ExtractDestination">

                <xsl:element name="Id">

                  <xsl:value-of select="fn:objectIdFromString(@id)"/>

                </xsl:element>

                <xsl:element name="Name">

                  <xsl:value-of select="@name"/>

                </xsl:element>

                <xsl:if test="string(@format)">

                  <xsl:element name="Format">

                    <xsl:value-of select="@format"/>

                  </xsl:element>

                </xsl:if>

                <xsl:element name="Resolution">

                  <xsl:value-of select="@resolution"/>

                </xsl:element>

                <xsl:element name="MinScale">

                  <xsl:value-of select="@minScale"/>

                </xsl:element>

                <xsl:element name="MaxScale">

                  <xsl:value-of select="@maxScale"/>

                </xsl:element>

                <xsl:element name="JpegQuality">

                  <xsl:value-of select="@jpegQuality"/>

                </xsl:element>

                <xsl:element name="ScaleCroppedImg">

                  <xsl:value-of select="@scaleCroppedImg"/>

                </xsl:element>

                <xsl:element name="AllowFreeCrop">

                  <xsl:value-of select="@allowFreeCrop"/>

                </xsl:element>

                <xsl:element name="Overwrite">

                  <xsl:value-of select="@overwrite"/>

                </xsl:element>

                <xsl:element name="FolderId">

                  <xsl:value-of select="fn:objectIdFromString(gn4:folderRef/@idref)"/>

                </xsl:element>

                <xsl:element name="Url">

                  <xsl:value-of select="gn4:url/text()"/>

                </xsl:element>

                <xsl:if test="gn4:presets">

                  <xsl:element name="Presets">

                    <xsl:for-each select="gn4:presets/gn4:item">

                      <xsl:element name="Preset">

                        <xsl:attribute name="kind">

                          <xsl:value-of select="@kind"/>

                        </xsl:attribute>

                        <xsl:element name="Name">

                          <xsl:value-of select="@name"/>

                        </xsl:element>

                        <xsl:element name="Width">

                          <xsl:value-of select="@width"/>

                        </xsl:element>

                        <xsl:element name="Height">

                          <xsl:value-of select="@height"/>

                        </xsl:element>

                      </xsl:element>

                    </xsl:for-each>

                  </xsl:element>

                </xsl:if>

              </xsl:element>

            </xsl:for-each>

          </xsl:element>

        </xsl:template>

      </xsl:stylesheet>

    </eopt:Xslt>

  </eopt:XmlExportOptions>

</wfres:workFlow>

•As ids

loaded from database:

<wfres:workFlow>

  <NavigatorWorkflow

    x:Name="mainWorkflow">

 

    <!-- load the extractDest from the database -->

    <Execute

      x:Name="destinations">

 

      <Search

        x:Name="searchDestinations"

        IdsOut='{wf:ActivityBind mainWorkflow, Path=IdsVars["destinations"]}' />

    </Execute>

 

    <!-- show the crop control -->

    <Crop

      x:Name="cropForm"

      DestinationIds='{wf:ActivityBind mainWorkflow, Path=IdsVars["destinations"]}' />

 

  </NavigatorWorkflow>

 

  <!-- searchConditions to search for extract destinations into the database -->

  <SearchConditions

    wfres:activityName="searchDestinations"

    ObjectTypeName="extractDest"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns="http://www.teradp.com/schemas/GN4/1/SearchConditions.xsd" />  

</wfres:workFlow>

•As names

•embedded into the workflow:

<Crop

  x:Name="cropForm">

 

  <Crop.DestinationNames>

    <x:Array Type="{x:Type sys:String}">

      <sys:String>Default</sys:String>

      <sys:String>Images</sys:String>

    </x:Array>

  </Crop.DestinationNames>  

</Crop>

•read from workflow parameters

<Crop

  x:Name="cropForm"

  DestinationNames='{wf:ActivityBind mainWorkflow, Path=ParValueAsStrings["extractDestName"]}' />