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Prima::Header(3)      User Contributed Perl Documentation     Prima::Header(3)

       Prima::Header - a multi-tabbed header widget.

       The widget class	provides functionality of several button-like caption
       tabs, that can be moved and resized by the user.	 The class was
       implemented with	a view to serve	as a table header for list and grid

       Click INDEX
	   Called when the user	clicks on the tab, positioned at INDEX.

       DrawItem	CANVAS,	INDEX, X1, Y1, X2, Y2, TEXT_BASELINE
	   A callback used to draw the tabs. CANVAS is the output object;
	   INDEX is the	index of a tab.	 X1,Y2,X2,Y2 are the coordinates of
	   the boundaries of the tab rectangle;	TEXT_BASELINE is a pre-
	   calculated vertical position	for eventual centered text output.

       MeasureItem INDEX, RESULT
	   Stores in scalar, referenced	by RESULT, the width or	height (
	   depending on	vertical property value	) of the tab in	pixels.

       MoveItem	OLD_INDEX, NEW_INDEX
	   Called when the user	moves a	tab from its old location, specified
	   by OLD_INDEX, to the	NEW_INDEX position. By the time	of call, all
	   internal structures are updated.

	   Called when the user	resizes	a tab in INDEX position. OLD_EXTENT
	   and NEW_EXTENT are either width or height of	the tab, depending on
	   vertical property value.

	   Called when more than one tab has changed its extent. This might
	   happen as a result of user action, as well as an effect of set-
	   calling to some properties.

       clickable BOOLEAN
	   Selects if the user is allowed to click the tabs.

	   Default value: 1

       dragable	BOOLEAN
	   Selects if the user is allowed to move of the tabs.

	   Default value: 1

       items ARRAY
	   Array of scalars, representing the internal data of the tabs.  By
	   default the scalars are treated as text strings.

       minTabWidth INTEGER
	   A minimal extent in pixels a	tab must occupy.

	   Default value: 2

       offset INTEGER
	   An offset on	the major axis ( depends on vertical property value )
	   that	the widget is drawn with. Used for the conjunction with	list
	   widgets ( see Prima::DetailedList ),	when the list is horizontally
	   or vertically scrolled.

	   Default value: 0

       pressed INTEGER
	   Contains the	index of the currently pressed tab. A -1 value is
	   selected when no tabs are pressed.

	   Default value: -1

       scalable	BOOLEAN
	   Selects if the user is allowed to resize the	tabs.

	   Default value: 1

       vertical	BOOLEAN
	   If 1, the tabs are aligned vertically; the offset, widths property
	   and extent parameters of the	callback notification assume heights
	   of the tabs.

	   If 0, the tabs are aligned horizontally, and	the extent properties
	   and parameters assume tab widths.

       widths ARRAY
	   Array of integer values, corresponding to the extents of the	tabs.
	   The extents are widths ( "vertical" is 0 ) or heights ( "vertical"
	   is 1	).

       tab2offset INDEX
	   Returns offset of the INDEXth tab ( without regard to offset
	   property value ).

       tab2rect	INDEX
	   Returns four	integers, representing the rectangle area, occupied by
	   the INDEXth tab ( without regard to offset property value ).

       Dmitry Karasik, <>.

       Prima, Prima::Widget, Prima::DetailedList, examples/

perl v5.32.0			  2020-05-01		      Prima::Header(3)


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