The Keywood JSD Network Editor uses a single document interface. Only a single diagram is open within the application at any one time although it may be run more than once and thus more may be visible in this way. The interface tries to be as WYSIWYG as possible. The application consists of a window containing various areas. The majority of the application window is occupied by the Main Diagram Area as highlighted in green below:
This area contains either of the Network or SID diagram views. It is an infinitely large area that can be much larger than the size of the application Window. If the diagram is bigger then horizontal and vertical scrollbars will become active to enable scrolling to those portions of the diagram that are not viewable.
It uses toolbars that occupy the Toolbar Areas to provide quick and easy access to the most frequently required facilities.
The diagram specific toolbars operate as follows: To place an entity on the diagram select the appropriate toolbar icon and press the left mouse button once. Then move the mouse to the main diagram area and press the left mouse button again. The appropriate symbol will appear on the diagram where the mouse was pressed.
There is a Statusbar Area as shown below:
It contains a number of pieces of information which from left to right are :
- The current X and Y coordinates of the mouse in the Main Diagram Area. On a new diagram the coordinate base is (0,0) and is in the top left-hand corner of the screen. Both X increases positively to the right and Y increases positively down the diagram.
- The 'modified' indicator. This indicates whether any amendments to the current diagram have been made since it was last opened or saved.
- The current Zoom level.
- The Status message line. This contains a variety of information including status relating to opening and closing files, the launching of other applications and information about any currently selected Entity in the Main Diagram Area.
The Menubar Area is shown below:
Details of each of the items on each of the Pulldown Menus can be found here.