[kxstitch] doc: Add documentation for crop function on import image.

[Steve Allewell]

Git commit a424aad9f4798d77304ed548912e3f2c4c26c255 by Steve Allewell.
Committed on 29/01/2018 at 22:20.
Pushed by sallewell into branch 'master'.

Add documentation for crop function on import image.

GUI: Updated documentation for import image dialog.

M  +6    -0    doc/dialogs.docbook
M  +-    --    doc/import-image-dialog.png

https://commits.kde.org/kxstitch/a424aad9f4798d77304ed548912e3f2c4c26c255

diff --git a/doc/dialogs.docbook b/doc/dialogs.docbook
index e6a7572..aa24819 100644
--- a/doc/dialogs.docbook
+++ b/doc/dialogs.docbook
@@ -124,6 +124,12 @@
             the final size is as close to the <guilabel>New Pattern Properties</guilabel> pattern size as possible. These values can be
             changed as required.
         </para>
+        <para>
+            The <guilabel>Crop image</guilabel> checkbox enables cropping of the preview image. Click and drag across the preview image to
+            select the area required. Guide lines are shown before selecting the starting point to allow more accurate placement. Once an
+            area is selected the preview will be rerendered to show the cropped area. Further cropping can be done if required. Clicking on
+            the reset button, or turning off cropping will revert the preview to the original image.
+        </para>
         <para>
             The <guilabel>Use fractionals</guilabel> checkbox will enable the use of fractional stitches in the imported pattern.  This
             effectively doubles the import resolution without affecting the overall size of the pattern.
diff --git a/doc/import-image-dialog.png b/doc/import-image-dialog.png
index a1579db..f8cba67 100644
Binary files a/doc/import-image-dialog.png and b/doc/import-image-dialog.png differ