scrolledcanvas
scrolledcanvas(1) [incr Widgets] scrolledcanvas(1)
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NAME
scrolledcanvas - Create and manipulate scrolled canvas widgets
SYNOPSIS
scrolledcanvas pathName ?options?
INHERITANCE
itk::Widget <- Labeledwidget <- Scrolledwidget <- Scrolledcanvas
STANDARD OPTIONS
activeBackground background borderWidthcursor
exportSelection font foreground highlightColor
highlightThickness insertBorderWidthinsertOffTimeinsertOnTime
insertWidth relief selectBackgroundselectBorderWidth
selectForeground
See the "options" manual entry for details on the standard options.
ASSOCIATED OPTIONS
closeEnough confine scrollRegion xScrollIncrement
yScrollIncrement
See the "canvas" widget manual entry for details on the above associ-
ated options.
activeRelief elementBorderWidth jumptroughColor
See the "scrollbar" widget manual entry for details on the above asso-
ciated options.
INHERITED OPTIONS
disabledForeground labelBitmap labelFontlabelImage
labelMargin labelPos labelText labelVariable
state
See the "labeledwidget" class manual entry for details on the inherited
options.
WIDGET-SPECIFIC OPTIONS
Name: autoMargin
Class: AutoMargin
Command-Line Switch: -automargin
Specifies the autoresize extra margin to reserve. This option
is only effective with autoresize turned on. The default is 10.
Name: autoResize
Class: AutoResize
Command-Line Switch: -autoresize
Automatically adjusts the scrolled region to be the bounding box
covering all the items in the canvas following the execution of
any method which creates or destroys items. Thus, as new items
are added, the scrollbars adjust accordingly.
Name: height
Class: Height
Command-Line Switch: -height
Specifies the height of the scrolled canvas widget in any of the
forms acceptable to Tk_GetPixels. The default height is 30
pixels.
Name: hscrollMode
Class: ScrollMode
Command-Line Switch: -hscrollmode
Specifies the the display mode to be used for the horizontal
scrollbar: static, dynamic, or none. In static mode, the scroll
bar is displayed at all times. Dynamic mode displays the scroll
bar as required, and none disables the scroll bar display. The
default is static.
Name: sbWidth
Class: Width
Command-Line Switch: -sbwidth
Specifies the width of the scrollbar in any of the forms accept-
able to Tk_GetPixels. The default width is 15 pixels..
Name: scrollMargin
Class: ScrollMargin
Command-Line Switch: -scrollmargin
Specifies the distance between the canvas and scrollbar in any
of the forms acceptable to Tk_GetPixels. The default is 3 pix-
els.
Name: textBackground
Class: Background
Command-Line Switch -textbackground
Specifies the background color for the canvas. This allows the
background within the canvas to be different from the normal
background color.
Name: vscrollMode
Class: ScrollMode
Command-Line Switch: -vscrollmode
Specifies the the display mode to be used for the vertical
scrollbar: static, dynamic, or none. In static mode, the scroll
bar is displayed at all times. Dynamic mode displays the scroll
bar as required, and none disables the scroll bar display. The
default is static.
Name: width
Class: Width
Command-Line Switch: -width
Specifies the width of the scrolled canvas widget in any of the
forms acceptable to Tk_GetPixels. The default height is 30 pix-
els.
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DESCRIPTION
The scrolledcanvas command creates a scrolled canvas with additional
options to manage horizontal and vertical scrollbars. This includes
options to control which scrollbars are displayed and the method, i.e.
statically or dynamically.
METHODS
The scrolledcanvas command creates a new Tcl command whose name is
pathName. This command may be used to invoke various operations on the
widget. It has the following general form:
pathName option ?arg arg ...?
Option and the args determine the exact behavior of the command. The
following commands are possible for scrolledcanvas widgets:
ASSOCIATED METHODS
addtag bbox bind canvasx
canvasy coords create dchars
delete dtag find focus
gettags icursor index insert
itemconfigure lower move postscript
raise scale scan select
type xview yview
See the "canvas" manual entry for details on the associated methods.
WIDGET-SPECIFIC METHODS
pathName cget option
Returns the current value of the configuration option given by
option. Option may have any of the values accepted by the
scrolledcanvas command.
pathName childsite
Returns the child site widget path name.
pathName configure ?option? ?value option value ...?
Query or modify the configuration options of the widget. If no
option is specified, returns a list describing all of the avail-
able options for pathName (see Tk_ConfigureInfo for information
on the format of this list). If option is specified with no
value, then the command returns a list describing the one named
option (this list will be identical to the corresponding sublist
of the value returned if no option is specified). If one or
more option-value pairs are specified, then the command modifies
the given widget option(s) to have the given value(s); in this
case the command returns an empty string. Option may have any
of the values accepted by the scrolledcanvas command.
pathName justify direction
Justifies the canvas contents via the scroll bars in one of four
directions: left, right, top, or bottom.
COMPONENTS
Name: canvas
Class: Canvas
The canvas component is the canvas widget. See the "canvas"
widget manual entry for details on the canvas component item.
Name: horizsb
Class: Scrollbar
The horizsb component is the horizontal scroll bar. See the
"ScrollBar" widget manual entry for details on the horizsb com-
ponent item.
Name: vertsb
Class: Scrollbar
The vertsb component is the vertical scroll bar. See the
"ScrollBar" widget manual entry for details on the vertsb compo-
nent item.
EXAMPLE
scrolledcanvas .sc
.sc create rectangle 100 100 400 400 -fill red
.sc create rectangle 300 300 600 600 -fill green
.sc create rectangle 200 200 500 500 -fill blue
pack .sc -padx 10 -pady 10 -fill both -expand yes
AUTHOR
Mark L. Ulferts
KEYWORDS
scrolledcanvas, canvas, widget
Tk scrolledcanvas(1)
