ActiveTcl User Guide

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iwidgets::toolbar - Create and manipulate a tool bar

Synopsis

iwidgets::toolbar pathName ?options?

Inheritance

itk::Widget <- iwidgets::Toolbar

Standard Options

activeBackground
activeForeground background borderWidth
cursor
disabledForeground font foreground highlightBackground highlightColor highlightThickness insertBackground insertForeground orient selectBackground selectBorderWidth selectForeground state troughColor

See the «options» manual entry for details on the standard

options. For widgets added to the toolbar, these options will be propogated if the widget supports the option. For example, all widgets that support a font option will be changed if the the toolbar's font option is configured.

Widget-specific Options

Name: balloonBackground

Class: BalloonBackground

Command-Line Switch: -ballooonbackground

Specifies the background color of the balloon help displayed at

the bottom center of a widget on the toolbar that has a non empty string for its balloonStr option. The default color is yellow.

Name: balloonDelay1

Class: BalloonDelay1

Command-Line Switch: -balloondelay1

Specifies the length of time (in milliseconds) to wait before

initially posting a balloon help hint window. This delay is in effect whenever 1) the mouse leaves the toolbar, or 2) a toolbar item is selected with the mouse button.

Name: balloonDelay2

Class: BalloonDelay2

Command-Line Switch: -balloondelay2

Specifies the length of time (in milliseconds) to wait before

continuing to post balloon help hint windows. This delay is in effect after the first time a balloon hint window is activated.

It remains in effect until 1) the mouse leaves the toolbar, or 2)

a toolbar item is selected with the mouse button.

Name: balloonFont

Class: BalloonFont

Command-Line Switch: -balloonfont

Specifies the font of the balloon help text displayed at the bot-

tom center of a widget on the toolbar that has a non empty string for its balloonStr option. The default font is 6x10.

Name: balloonForeground

Class: BalloonForeground

Command-Line Switch: -ballooonforeground

Specifies the foreground color of the balloon help displayed at

the bottom center of a widget on the toolbar that has a non empty string for its balloonStr option. The default color is black.

Name: helpVariable

Class: HelpVariable

Command-Line Switch: -helpvariable

Specifies the global variable to update whenever the mouse is in

motion over a toolbar widget. This global variable is updated with the current value of the active widget's helpStr. Other wid- gets can «watch» this variable with the trace command, or as is the case with entry or label widgets, they can set their textVariable to the same global variable. This allows for a sim- ple implementation of a help status bar. Whenever the mouse leaves a menu entry, the helpVariable is set to the empty string {}.

Name: orient

Class: Orient

Command-Line Switch: -orient

Specifies the orientation of the toolbar. Must be either horizon-

tal or vertical.
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Description

The iwidgets::toolbar command creates a new window (given by the

pathName argument) and makes it into a toolbar widget. Additional options, described above may be specified on the command line or in the option database to configure aspects of the toolbar such as its colors, font, and orientation. The iwidgets::toolbar com- mand returns its pathName argument. At the time this command is invoked, there must not exist a window named pathName, but path-

Name's parent must exist.

A toolbar is a widget that displays a collection of widgets

arranged either in a row or a column (depending on the value of the -orient option). This collection of widgets is usually for user convenience to give access to a set of commands or settings.

Any widget may be placed on a toolbar. However, command or

value-oriented widgets (such as button, radiobutton, etc.) are usually the most useful kind of widgets to appear on a toolbar.

In addition, the toolbar adds two new options to all widgets that

are added to it. These are the helpStr and balloonStr options.

See the discussion for the widget command add below.

Widget-specific Methods

The iwidgets::toolbar 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 args determine the exact behavior of the command.

Many of the widget commands for a toolbar take as one argument an

indicator of which widget item of the toolbar to operate on. The indicator is called an index and may be specified in any of the following forms:
number

Specifies the widget numerically, where 0 corresponds to the

first widget in the notebook, 1 to the second, and so on. (For horizontal, 0 is the leftmost; for vertical, 0 is the topmost). end

Specifes the last widget in the toolbar's index. If the toolbar

is empty this will return -1.
last

Same as end.

pattern

If the index doesn't satisfy any of the above forms, then this

form is used. Pattern is pattern-matched against the widgetName of each widget in the toolbar, in order from the first to the last widget, until a matching entry is found. An exact match must occur.

The following commands are possible for toolbar widgets:

pathName add widgetCommand widgetName ?option value?

Adds a widget with the command widgetCommand whose name is wid-

getName to the toolbar. If widgetCommand is radiobutton or check- button, its packing is slightly padded to match the geometry of button widgets. In addition, the indicatorOn option is false by default and the selectColor is that of the toolbar background by default. This allows Radiobutton and Checkbutton widgets to be added as icons by simply setting their bitmap or image options.

If additional arguments are present, they are the set of avail-

able options that the widget type of widgetCommand supports. In addition they may also be one of the following options: -helpstr value

Specifes the help string to associate with the widget. When the

mouse moves over the widget, the variable denoted by helpVariable is set to helpStr. Another widget can bind to the helpVariable and thus track status help.
-balloonstr value

Specifes the string to display in a balloon window for this wid-

get. A balloon window is a small popup window centered at the bottom of the widget. Usually the balloonStr value is the name of the item on the toolbar. It is sometimes known as a hint window.

When the mouse moves into an item on the toolbar, a timer is set

based on the value of balloonDelay1. If the mouse stays inside the item for balloonDelay1, the balloon window will pop up dis- playing the balloonStr value. Once the balloon window is posted, a new timer based on balloonDelay2 is set. This is typically a shorter timer. If the mouse is moved to another item, the window is unposted and a new window will be posted over the item if the shorter delay time is satisfied.

While the balloon window is posted, it can also be unposted if

the item is selected. In this case the timer is reset to balloon-

Delay1. Whenever the mouse leaves the toolbar, the timer is also

reset to balloonDelay1.

This window posting/unposting model is the same model used in the

Windows95 environment.

pathName cget option

Returns the current value of the configuration option given by

option.
pathName configure ?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.
pathName delete index ?index2?

This command deletes all items between index and index2 inclu-

sive. If index2 is omitted then it defaults to index. Returns an empty string.
pathName index index

Returns the widget's numerical index for the entry corresponding

to index. If index is not found, -1 is returned. pathName insert beforeIndex widgetCommand widgetName ?option value?

Insert a new item named widgetName with the

command widgetCommand before the item specified by beforeIndex.

If widgetCommand is radiobutton or checkbutton, its packing is

slightly padded to match the geometry of button widgets. In addi- tion, the indicatorOn option is false by default and the select-

Color is that of the toolbar background by default. This allows

Radiobutton and Checkbutton widgets to be added as icons by sim-

ply setting their bitmap or image options. The set of available options is the same as specified in the ad command. pathName itemcget index option

Returns the current value of the configuration option given by

option for index. The item type of index determines the valid available options.
pathName itemconfigure index ?option value?

Query or modify the configuration options of the widget of the

toolbar specified by index. If no option is specified, returns a list describing all of the available options for index (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.

The item type of index determines the valid available options.

The set of available options is the same as specified in the ad

command.

Example

package require Iwidgets 4.0
iwidgets::toolbar .tb -helpvariable statusVar

.tb add button item1 \
-helpstr «Save It» -bitmap @./icons/Tool_32_box.xbm \ -balloonstr «Save» -command {puts 1}
.tb add button item2 \
-helpstr «Save It» -bitmap @./icons/Tool_32_brush.xbm \ -balloonstr «Save» -command {puts 1}
.tb add button item3 \
-helpstr «Save It» -bitmap @./icons/Tool_32_cut.xbm \ -balloonstr «Save» -command {puts 1}
.tb add button item4 \
-helpstr «Save It» -bitmap @./icons/Tool_32_draw.xbm \ -balloonstr «Save» -command {puts 1}
.tb add button item5 \
-bitmap @./icons/Tool_32_erase.xbm -helpstr «Play It» \ -command {puts 2}
.tb add frame filler \
-borderwidth 1 -width 10 -height 10
.tb add radiobutton item6 \
-bitmap @./icons/Tool_32_oval.xbm -command {puts 4} \ -variable result -value OPEN -helpstr «Radio Button # 1» \ -balloonstr «Radio"
.tb add radiobutton item7 \
-bitmap @./icons/Tool_32_line.xbm -command {puts 5} \ -variable result -value CLOSED
.tb add checkbutton item8 \
-bitmap @./icons/Tool_32_text.xbm -command {puts 6} \ -variable checkit -onvalue yes -offvalue no .tb add checkbutton check2 \
-bitmap @./icons/Tool_32_points.xbm -command {puts 7} \ -variable checkit2 -onvalue yes -offvalue no

pack .tb -side top -anchor nw

Author

Bill Scott

Keywords

toolbar, button, radiobutton, checkbutton, iwidgets, widget

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