XViewSDTS User Guide: Athena Widgets

Athena Widgets

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XViewSDTS uses the X Window System's Athena widget set. If you are unfamiliar with Athena widgets, the following may be helpful:

Menus

Athena menus are of the press-select-release style, not the click-select-click style. You press (and hold) a pointer button to bring up the menu, select the item you want, then release the button.

Text boxes

Athena text boxes often require you to place the pointer within the box before you can type text into the box. If you want to replace the existing text, you will need to use the Backspace key to erase the existing text first.

In XViewSDTS, text boxes which are used for integers often have - and + buttons next to them. These buttons may be used to decrement or increment the value in the text box. The magnitude of the change for each click depends upon the position of the caret in the text box. If the caret is just right of the ones digit, each click decrements or increments the value by one; if the caret is just right of the tens digit, each click decrements or increments the value by ten; and so on.

Scrollbars

Athena scrollbars have a behavior that is probably different from what you are used to with scrollbars in other widget sets. To move the text to a certain position, use the middle pointer button. To move the text left or up, use the pointer's left button. To move the text right or down, use the pointer's right button. The amount of movement with the left or right pointer buttons will vary with the placement of the pointer. If the pointer is placed near the left or top of the scrollbar, movement will be slight. If the pointer is placed near the right or bottom of the scrollbar, movement will be greater.

Click the left button near the top of the scrollbar to move the text up a little.