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Modula Definition | 1995-02-22 | 1.3 KB | 45 lines | [TEXT/3PRM] |
- definition module sliderBar;
-
-
- // Version 0.8 to 1.0
-
-
- import deltaIOSystem;
- from ioState import IOState;
-
-
- /* A general Slider Bar definition, which is a dialog item
- implemented entirely in Concurrent Clean as a Control.
- */
-
-
- :: SliderDirection = Horizontal | Vertical;
- :: SliderPos :== Int;
- :: SliderMax :== Int;
-
-
- /* A SliderBar is defined by the following attributes:
- - Id, ItemPos and SelectState, like other DialogItems.
- - SliderDirection: Horizontal or Vertical.
- - SliderPos: the initial position of the slider. This position is always
- adjusted between 0 and SliderMax.
- - SliderMax: the slider can take on positions between 0 and SliderMax.
- */
- SliderBar :: !DialogItemId !ItemPos !SelectState !SliderDirection
- !SliderPos !SliderMax
- !(DialogFunction s (IOState s))
- -> DialogItem s (IOState s);
-
- /* ChangeSliderBar moves the slider of the indicated bar to the new
- position. The position is always adjusted between 0 and SliderMax.
- */
- ChangeSliderBar :: !DialogItemId !SliderPos
- !(DialogState s (IOState s))
- -> DialogState s (IOState s);
-
- /* GetSliderPosition retrieves the current slider position of the slider
- bar with the indicated id from the DialogInfo parameter. When the id is
- not the id of a SliderBar a run-time error is generated.
- */
- GetSliderPosition :: !DialogItemId !DialogInfo -> SliderPos;
-