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Thore Böckelmann edited this page Oct 11, 2021 · 4 revisions

Prop.mui

Super class

Gadget.mui

Background

Prop class generates the well known proportional gadgets. It offers the same attributes as a usual boopsi gadget of propgclass. However, MUI's prop gadgets allow using any imagery for the knob and for the background.

Attributes

Attribute Version ISG Type
MUIA_Prop_DeltaFactor V4 ISG LONG
MUIA_Prop_Entries V4 ISG LONG
MUIA_Prop_First V4 ISG LONG
MUIA_Prop_Horiz V4 I.G BOOL
MUIA_Prop_Slider V4 ISG BOOL (OBSOLETE)
MUIA_Prop_UseWinBorder V13 I.. LONG
MUIA_Prop_Visible V4 ISG LONG

Methods

Method Version
MUIM_Prop_Decrease V16
MUIM_Prop_Increase V16

MUIA_Prop_DeltaFactor

NAME

MUIA_Prop_DeltaFactor -- V4 [ISG], LONG, 0x80427c5e

FUNCTION

Set or get an additional delta factor to speed up keyboard navigation. All "fast" movements, like "alt+cursor up", will be multiplied by this factor.

Defaults to 1.

SEE ALSO

MUIA_Prop_Visible, MUIA_Prop_Entries

MUIA_Prop_Entries

NAME

MUIA_Prop_Entries -- V4 [ISG], LONG, 0x8042fbdb

FUNCTION

Set or get the total number of entries.

SEE ALSO

MUIA_Prop_Horiz, MUIA_Prop_Visible, MUIA_Prop_First

MUIA_Prop_First

NAME

MUIA_Prop_First -- V4 [ISG], LONG, 0x8042d4b2

FUNCTION

Set or get the number of the first entry.

SEE ALSO

MUIA_Prop_Horiz, MUIA_Prop_Visible, MUIA_Prop_Entries

MUIA_Prop_Horiz

NAME

MUIA_Prop_Horiz -- V4 [I.G], BOOL, 0x8042f4f3

FUNCTION

Determine if you want a horizontal or a vertical prop gadget.

Defaults to FALSE, i.e. vertical.

SEE ALSO

MUIA_Prop_Entries, MUIA_Prop_First, MUIA_Prop_Visible

MUIA_Prop_Slider

NAME

MUIA_Prop_Slider -- V4 [ISG], BOOL, 0x80429c3a (OBSOLETE)

FUNCTION

OBSOLETE. DO NOT USE. PREVIOUSLY: Indicate that this prop gadget is used in a slider. MUI might then use different imagery. Since you really should use the slider class when creating sliders, you normally don't need to care about this attribute.

MUIA_Prop_UseWinBorder

NAME

MUIA_Prop_UseWinBorder -- V13 [I..], LONG, 0x8042deee

SPECIAL INPUTS

  • MUIV_Prop_UseWinBorder_None
  • MUIV_Prop_UseWinBorder_Left
  • MUIV_Prop_UseWinBorder_Right
  • MUIV_Prop_UseWinBorder_Bottom

FUNCTION

If you set this attribute to one of

MUIV_Prop_UseWinBorder_Left, MUIV_Prop_UseWinBorder_Right, MUIV_Prop_UseWinBorder_Bottom,

some very special magic will take place with this proportional gadget. In fact, it will not eat any display space at all or render anything, it stays invisible in your windows GUI. Instead, the gadgets control and display will be linked to one of the scrollbars in the window border.

There is no difference in talking to the object, you can use all prop gadget attributes regardless whether its a real prop gadget or just a window border link. Of course, gadgets in window borders will use the intuition look regardless what the user has configured.

NOTES

You MUST enable border scrollers for the parent window with the corresponding attributes (see below) before using MUIA_Prop_UseWinBorder.

Obviously, you can only link exactly one prop gadget to one window scroller. Linking more than one gadget to the same window scroller will result in big confusion.

To simplify programming, the classes Scrollbar class and Listview class also accept the MUIA_Prop_UseWinBorder attribute and pass it on when creating their prop gadgets. This allows you to do something like

WindowObject,
  MUIA_Window_UseRightBorderScroller, TRUE,
  MUIA_Window_RootObject, VGroup,
    Child, ListviewObject,
      MUIA_Prop_UseWinBorder, MUIV_Prop_UseWinBorder_Right,
      ...

to create a listview thats controllable with a scrollbar in the right window border.

Scrollgroup class (for virtual groups) features another attribute called MUIA_Scrollgroup_UseWinBorder, TRUE/FALSE to allow control of virtual group from window borders.

SEE ALSO

MUIA_Window_UseBottomBorderScroller, MUIA_Window_UseLeftBorderScroller, MUIA_Window_UseRightBorderScroller, MUIA_Scrollgroup_UseWinBorder

MUIA_Prop_Visible

NAME

MUIA_Prop_Visible -- V4 [ISG], LONG, 0x8042fea6

FUNCTION

Set or get the number of visible entries.

SEE ALSO

MUIA_Prop_Horiz, MUIA_Prop_Entries, MUIA_Prop_First

MUIM_Prop_Decrease

NAME

MUIM_Prop_Decrease -- V16, 0x80420dd1

SYNOPSIS

DoMethod(obj, MUIM_Prop_Decrease, LONG amount);

FUNCTION

This method decreases the value of a proportional gadget by the specified amount. Negative values are ok. Range checking is done automatically.

INPUTS

LONG amount amount to substract from the gadgets current position.

SEE ALSO

MUIM_Prop_Increase, MUIA_Prop_First

MUIM_Prop_Increase

NAME

MUIM_Prop_Increase -- V16, 0x8042cac0

SYNOPSIS

DoMethod(obj, MUIM_Prop_Increase, LONG amount);

FUNCTION

This method increases the value of a proportional gadget by the specified amount. Negative values are ok. Range checking is done automatically.

INPUTS

LONG amount amount to add to the gadgets current position.

SEE ALSO

MUIM_Prop_Decrease, MUIA_Prop_First

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Copyright © 2006-2021 by Thore Böckelmann, Jens Maus		 MUI for AmigaOS Homepage
MUI for AmigaOS Wiki 		Updated: 11-Oct-2021
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