wsug: add Packet Diagram documentation

Release (uncomment) text added in 9b074122
Add popup menu text
Add screen shots and pngcrush per 9ed7568f
Update View menu screenshot to include Packet Diagram

docbook/CMakeLists.txt

@@ -104,6 +104,8 @@ set(WSUG_GRAPHICS
 	wsug_graphics/ws-decode-as.png
 	wsug_graphics/ws-details-pane-popup-menu.png
 	wsug_graphics/ws-details-pane.png
+	wsug_graphics/ws-diagram-pane.png
+	wsug_graphics/ws-diagram-pane-popup-menu.png
 	wsug_graphics/ws-display-filter-tcp.png # GTK+
 	wsug_graphics/ws-edit-menu.png
 	wsug_graphics/ws-enabled-protocols.png

docbook/wsug_src/WSUG_chapter_use.adoc

@@ -66,7 +66,8 @@ other GUI programs.
 . The _packet bytes pane_ (see <<ChUsePacketBytesPaneSection>>) displays the
   data from the packet selected in the packet list pane, and highlights the field
   selected in the packet details pane.
-// . The _packet diagram pane_ (see <<ChUsePacketDiagramPaneSection>>) displays the packet selected in the packet list as a textbook-style diagram.
+. The _packet diagram pane_ (see <<ChUsePacketDiagramPaneSection>>) displays the
+  packet selected in the packet list as a textbook-style diagram.
 . The _statusbar_ (see <<ChUseStatusbarSection>>) shows some detailed
   information about the current program state and the captured data.
 
@@ -407,7 +408,7 @@ image::wsug_graphics/ws-view-menu.png[{screenshot-attrs}]
 |menu:Packet List[]     ||This menu item hides or shows the packet list pane, see <<ChUsePacketListPaneSection>>.
 |menu:Packet Details[]  ||This menu item hides or shows the packet details pane, see <<ChUsePacketDetailsPaneSection>>.
 |menu:Packet Bytes[]    ||This menu item hides or shows the packet bytes pane, see <<ChUsePacketBytesPaneSection>>.
-// |menu:Packet Diagram[]    ||This menu item hides or shows the packet diagram pane. See <<ChUsePacketDiagramPaneSection>>.
+|menu:Packet Diagram[]  ||This menu item hides or shows the packet diagram pane. See <<ChUsePacketDiagramPaneSection>>.
 |menu:Time Display Format[Date and Time of Day: 1970-01-01 01:02:03.123456]|| Selecting this tells Wireshark to display the time stamps in date and time of day format, see <<ChWorkTimeFormatsSection>>.
 
 The fields “Time of Day”, “Date and Time of Day”, “Seconds Since Beginning of
@@ -1067,7 +1068,6 @@ decrypted data.
 
 [#ChUsePacketDiagramPaneSection]
 
-////
 === The “Packet Diagram” Pane
 
 The packet diagram pane shows the current packet (selected in the “Packet List”
@@ -1082,7 +1082,6 @@ This pane shows the protocols and top-level protocol fields of the packet select
 
 There is a context menu (right mouse click) available.
 For details see <<ChWorkPacketDiagramPanePopUpMenu>>.
-////
 
 [#ChUseStatusbarSection]
 

docbook/wsug_src/WSUG_chapter_work.adoc

@@ -393,6 +393,39 @@ Use EBCDIC encoding when displaying “hexdump” text.
 
 |===
 
+[#ChWorkPacketDiagramPanePopUpMenuSection]
+
+==== Pop-up Menu Of The “Packet Diagram” Pane
+
+[#ChWorkPacketDiagramPanePopUpMenu]
+
+.Pop-up menu of the “Packet Diagram” pane
+image::wsug_graphics/ws-diagram-pane-popup-menu.png[{screenshot-attrs}]
+
+The following table gives an overview of which functions are available
+in this pane along with a short description of each item.
+
+[#PacketDiagramPopupMenuTable]
+
+.The menu items of the “Packet Diagram” pop-up menu
+[options="header",cols="3,7"]
+|===
+|Item |Description
+
+|menu:Show Field Values[] |
+Display current value for each field on the packet diagram.
+
+|menu:Save Diagram As...[] |
+Save the packet diagram to an image file (PNG, BMP, JPEG).
+
+|menu:Copy as Raster Image[] |
+Copy the packet diagram to the clipboard in raster (ARGB32) format.
+
+// |menu:…as SVG[] |
+// (macOS) Copy the packet diagram to the clipboard in SVG format.
+
+|===
+
 [#ChWorkDisplayFilterSection]
 
 === Filtering Packets While Viewing