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Man Pages


Manual Reference Pages  -  IWIDGETS_SCROLLEDCANVAS (n)

NAME

iwidgets::scrolledcanvas - Create and manipulate scrolled canvas widgets

CONTENTS

Synopsis
Description
Example
Author
Keywords

SYNOPSIS

iwidgets::scrolledcanvas pathName ?options?

INHERITANCE

itk::Widget <- iwidgets::Labeledwidget <- iwidgets::Scrolledwidget <- iwidgets::Scrolledcanvas

STANDARD OPTIONS



activeBackground    background         borderWidth       cursor
exportSelection     font               foreground        highlightColor
highlightThickness  insertBorderWidth  insertOffTime     insertOnTime
insertWidth         relief             selectBackground  selectBorderWidth
selectForeground

See the "options" manual entry for details on the standard options.

ASSOCIATED OPTIONS


closeEnough confinescrollRegionxScrollIncrement
yScrollIncrement

See the "canvas" widget manual entry for details on the above associated options.


activeReliefelementBorderWidthjumptroughColor

See the "scrollbar" widget manual entry for details on the above associated options.

INHERITED OPTIONS


disabledForegroundlabelBitmaplabelFontlabelImage
labelMargin labelPoslabelTextlabelVariable
state   sticky

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 acceptable 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 pixels.
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 pixels.

   








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DESCRIPTION

The iwidgets::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 iwidgets::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  bboxbindcanvasx
canvasy coordscreatedchars
delete  dtagfindfocus
gettags icursorindexinsert
itemconfigurelowermovepostscript
raise   scalescanselect
type    xviewyview

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 iwidgets::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 available 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 iwidgets::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 component item.
Name:   vertsb
Class:  Scrollbar

The vertsb component is the vertical scroll bar. See the "ScrollBar" widget manual entry for details on the vertsb component item.

EXAMPLE


package require Iwidgets 4.0 iwidgets::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
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