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- /* ==========================================================================
- **
- ** Slider.h
- **
- ** Object<GraphicObject<Interactor<Valuator<Positioner<Sliders
- **
- ** Sliders are proportional gadgets.
- **
- **
- ** ©1991 WILLISoft
- **
- ** ==========================================================================
- */
-
- #ifndef SLIDER_H
- #define SLIDER_H
-
-
- #include "Precognition_utils.h"
- #include "Precognition3D.h"
- #include "pcgWindow.h"
- #include "EmbossedGadget.h"
- #include "Positioner.h"
-
- typedef struct SliderMap
- {
- SHORT Min;
- SHORT Max;
- SHORT Pot;
- SHORT Body;
- } SliderMap;
- /* This data type is used to 'map' the desired range of a
- ** a PropGadget to its actual range. (i.e. Intuition uses
- ** a range of 0..65536. Usually the application has another
- ** range in mind.
- */
-
-
- typedef struct Slider
- {
- EmbossedGadget eg;
- struct PropInfo Prop;
- WORD AutoKnob[4];
- } Slider;
-
-
- void Slider_Init( Slider *self,
- PIXELS LeftEdge,
- PIXELS TopEdge,
- PIXELS Width,
- PIXELS Height,
- pcg_3DPens Pens );
- /* The following function initializes an autoknob
- ** propgadget. The gadget is initialized to be full size.
- ** The relevant fields which are initialized are:
- ** Flags = GADGHCOMP;
- ** GadgetType = PROPGADGET;
- ** GadgetRender = &AutoKnob;
- ** SelectRender = NULL;
- ** SpecialInfo = &Prop;
- ** Prop.Flags = AUTOKNOB | BORDERLESS;
- **
- ** You have to do everything else.
- */
-
-
- void SliderClass_Init( struct PositionerClass *class );
-
-
-
- /*
- ** SlideLower() moves the slider knob toward position 0. NOTE that
- ** 'Lower' is relative to the position range, NOT THE DIRECTION
- ** IT MOVES ON THE SCREEN. For a VSlider, position 0 (and therefore
- ** 'lower') is toward the TOP of the screen.
- **
- ** SlideHigher() moves the slider knob toward position 0xFFFF.
- **
- ** In both cases, the amount of movement is proportional to the
- ** size of the knob.
- */
-
- void SlideLower( Slider *self );
-
- void SlideHigher( Slider *self );
-
-
- #endif
-